WO2017110543A1 - Vehicle occupant information acquisition system - Google Patents

Abstract

Provided is a vehicle occupant information acquisition system. A portable device (200) for a vehicle is provided with a function of performing short-distance communication with portable terminals (300). The portable device (200) for a vehicle identifies a holder terminal on the basis of the amount of fluctuation in the reception signal strength of a signal transmitted from each of the portable terminals (300), and transmits a holder information signal indicating the holder terminal to an onboard device (100). The onboard device (100) specifies a user holding the portable device (200) for a vehicle on the basis of the holder information signal received from the portable device (200) for a vehicle. The onboard device (100) also specifies the portable device position by receiving a response signal in response to a signal transmitted to the portable device (200) for a vehicle. The onboard device then deems the seat determined by the portable device position to be the seating position for the user deemed to be the portable device holder.

Description

Crew information acquisition system Cross-reference of related applications

This application includes Japanese Patent Application No. 2015-250777 filed on December 23, 2015, Japanese Patent Application No. 2016-805777 filed on April 13, 2016, and August 9, 2016. Based on the filed Japanese Patent Application No. 2016-156595, the disclosures of which are incorporated herein by reference.

The present disclosure relates to an occupant information acquisition system that acquires information about a user who uses a vehicle.

Conventionally, on the basis of successful authentication by wireless communication between the vehicle-mounted device mounted on the vehicle and the vehicle portable device carried by the vehicle user and associated with the vehicle-mounted device, Systems that perform various controls such as locking and unlocking and engine starting are known.

Patent Document 1 specifies the position of the mobile terminal brought into the vehicle and regards the seat corresponding to the specified position of the mobile terminal as the seat on which the user of the mobile terminal is seated. A system for providing an individual service according to a user is disclosed.

Specifically, in the system of Patent Document 1, a receiver that receives a signal transmitted from a mobile terminal is provided at a plurality of locations (for example, each seat) in the vehicle interior, and each receiver is connected to the mobile terminal. Is received, the received signal strength is detected. And it determines with a portable terminal (in other words, the user) existing in the seat corresponding to the receiver with the largest received signal strength among a plurality of receivers provided for each seat.

Note that the above-described mobile terminal is a communication terminal having a communication function based on Bluetooth (registered trademark), and in Patent Document 1, a smartphone, a mobile phone, or the like is assumed as the mobile terminal. In connection with this, the receiver provided in each seat performs wireless communication based on Bluetooth (registered trademark).

For convenience, communication conforming to a predetermined wireless communication standard, such as Bluetooth, in which the communication range is, for example, about several tens of meters at the maximum is hereinafter referred to as near field communication. In addition, a system that acquires information about an occupant, such as which user is seated (or who is seated) at which seat, and which user is carrying a vehicle portable device, is also referred to as an occupant information acquisition system. .

JP 2009-177588 A

In the configuration of Patent Document 1, for example, in order to acquire information on which seat is seated in which seat, it is necessary to provide a receiver for short-range communication in each seat included in the vehicle. That is, the cost is increased by the number of receivers.

One of the objects of the present disclosure is to provide an occupant information acquisition system that does not require a plurality of receivers for performing wireless communication with a mobile terminal in a vehicle based on this situation.

An occupant information acquisition system according to a first aspect of the present disclosure includes an onboard device mounted on a vehicle used by a plurality of users, and at least one portable device for a vehicle associated with the onboard device. In the information acquisition system, the vehicle-mounted device includes a vehicle-side transmission unit that transmits a predetermined signal from a plurality of transmission antennas for transmitting signals in a frequency band that can be received by the vehicle portable device, and a reception antenna. By receiving a response signal returned from the vehicle portable device as a response to the signal transmitted from the plurality of transmission antennas, and a vehicle side receiving unit that receives a signal transmitted from the vehicle portable device via A portable device position specifying unit for specifying a portable device position that is a position where the portable device for the vehicle exists, and the portable device for the vehicle performs transmission and reception of signals with the on-vehicle device and is transmitted from the on-vehicle device. Faith And a second communication unit for performing near field communication with each of a plurality of portable terminals carried by each of a plurality of users. And a received signal strength detection unit for detecting the received signal strength of the signal received by the second communication unit from the portable terminal, and a portable device for the vehicle carried on the basis of the received signal strength detected by the received signal strength detection unit. A holder terminal specifying unit that specifies a holder terminal that is a portable terminal carried by a user, and the first communication unit identifies the user of the holder terminal specified by the holder terminal specifying unit as a vehicle-mounted device. Is transmitted to the vehicle-mounted device, and the vehicle-mounted device is a user who holds the vehicle portable device based on the holder information transmitted from the vehicle portable device. Security Thereby identifying a person, based on the portable device position the portable device position specifying portion is identified, and a passenger information acquisition unit for identifying the seating position of the portable device holder.

In the above configuration, when the portable device for a vehicle receives a signal transmitted from the vehicle-mounted device, it returns a response signal to the received signal. In addition, the vehicular portable device determines the holder terminal from among the portable terminals existing around the own device based on the received signal strength of the signal transmitted from the portable terminal existing around the own device. And the holder | retainer information showing the user of the said holder | retainer terminal is transmitted to onboard equipment. Note that the user of the holder terminal corresponds to a user carrying the vehicle portable device. Therefore, the holder information functions as information indicating a user carrying the vehicle portable device.

On the other hand, the vehicle-mounted device identifies the position of the vehicle portable device by receiving the response signal returned from the vehicle portable device. Moreover, an onboard equipment specifies the user as a portable device holder among the users of a vehicle based on the holder information transmitted from the portable device for vehicles. And the seating position of the user as a portable machine holder is specified based on the position of the portable machine for vehicles.

According to such an aspect, the vehicle portable device only needs to have a function of performing short-distance communication with the portable terminal, and the vehicle-mounted device determines the seating position of the user who uses the vehicle. There is no need to arrange a plurality of receivers for carrying out near field communication with the mobile terminal. That is, according to the configuration disclosed as the first aspect, it is possible to suppress the number of receivers for performing near field communication that should be provided in the occupant information acquisition system.

An occupant information acquisition system according to a second aspect of the present disclosure includes an onboard device mounted on a vehicle used by a plurality of users, and at least one portable device for a vehicle associated with the onboard device. In the information acquisition system, the vehicle-mounted device includes a vehicle-side transmission unit that transmits a predetermined signal from a plurality of transmission antennas for transmitting signals in a frequency band that can be received by the vehicle portable device, and a reception antenna. A vehicle-side receiving unit that receives a signal transmitted from the vehicle portable device via the vehicle, the vehicle portable device transmits and receives signals to and from the vehicle-mounted device, and receives the signal transmitted from the vehicle-mounted device. A first communication unit that returns a response signal to the received signal, a second communication unit for performing near field communication with each of a plurality of portable terminals carried by each of a plurality of users, and a vehicle for A detection result about the state quantity is acquired from a device that detects a predetermined state quantity that changes due to the behavior of the portable device holder who is the user carrying the band device, and is stored in a predetermined storage medium A state quantity acquisition unit, and each portable terminal executes state calculation history data representing a history of state quantities acting on the portable terminal or predetermined calculation processing on the state quantity history data. The predetermined processed state quantity data generated is configured to be transmitted as behavior notification data to the vehicle portable device, and the vehicle portable device transmits the behavior notification data transmitted from each of the plurality of portable terminals. And a holder terminal specifying unit that specifies a holder terminal that is a portable terminal carried by the portable device holder based on the state quantity of the portable device for a vehicle acquired by the state quantity acquisition unit, 1 The unit transmits the holder information indicating the user of the holder terminal specified by the holder terminal specifying unit to the vehicle-mounted device, and the vehicle-mounted device is portable based on the holder information transmitted from the vehicle portable device. An occupant information acquisition unit for identifying the aircraft carrier is provided.

In the above configuration, the mobile device for the vehicle determines the holder terminal from the mobile terminals existing around the own device based on the behavior notification data transmitted from the mobile terminals existing around the own device. And the holder information showing the user of the said holder terminal is transmitted to the vehicle-mounted device. Note that the user of the holder terminal corresponds to the user who carries the vehicle portable device. Therefore, the holder information functions as information indicating a user carrying the vehicle portable device.

On the other hand, the vehicle-mounted device specifies the user as the portable device holder among the users of the vehicle based on the holder information transmitted from the vehicle portable device. According to such an aspect, the portable device for vehicles should just be provided with the function to implement short-distance communication with a portable terminal. Therefore, it is not necessary to arrange a plurality of receivers for carrying out near field communication with the mobile terminal in the vehicle. That is, according to the configuration disclosed as the second aspect, it is possible to suppress the number of receivers for performing short-range communication that should be included in the occupant information acquisition system.

The above and other objects, features, and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. In the drawing
FIG. 1 is a block diagram showing a schematic configuration of an occupant information acquisition system. FIG. 2 is a block diagram illustrating a schematic configuration of the vehicle-mounted device. FIG. 3 is a conceptual diagram for explaining the arrangement and transmission area of the LF antenna. FIG. 4 is a functional block diagram illustrating a schematic configuration of the vehicle-side control unit. FIG. 5 is a diagram for explaining a method for identifying an LF antenna that has transmitted a signal responded by the vehicular portable device. FIG. 6 is a block diagram illustrating a schematic configuration of the vehicle portable device. FIG. 7 is a functional block diagram illustrating a schematic configuration of the portable device-side control unit. FIG. 8 is a block diagram showing a schematic configuration of the mobile terminal. FIG. 9 is a flowchart for explaining the vehicle-side process. FIG. 10 is a flowchart for explaining the processing on the portable device side. FIG. 11 is a diagram for explaining a modification of the method for identifying the LF antenna that has transmitted a signal responded by the vehicular portable device. FIG. 12 is a conceptual diagram showing a modification of the arrangement of the LF antennas and the transmission area. FIG. 13 is a diagram for explaining a modification of the portable device position specifying method by the portable device position specifying unit. FIG. 14 is a diagram for explaining a modification of the sampling period. FIG. 15 is a diagram for explaining a modification of the sampling period. FIG. 16 is a flowchart for explaining the holder information acquisition process. FIG. 17 is a flowchart for explaining the holder information providing process. FIG. 18 is a flowchart for explaining the first holder terminal specifying process. FIG. 19 is a diagram for explaining a usage form of the RAM. FIG. 20 is a flowchart for explaining the second holder terminal specifying process. FIG. 21 is a block diagram illustrating a schematic configuration of a vehicle portable device according to Modification 15. FIG. 22 is a block diagram illustrating a schematic configuration of a portable device-side control unit according to Modification 15. FIG. 23 is a diagram for explaining the operation of the frequency characteristic analyzer. FIG. 24 is a diagram for explaining the operation of the frequency characteristic analysis unit. FIG. 25 is a diagram for explaining the operation of the walking determination unit. FIG. 26 is a flowchart for explaining the holder terminal specifying process performed by the portable device-side control unit according to the modified example 15. FIG. 27 shows a continuation of the flowchart shown in FIG. FIG. 28 is a diagram for explaining the operation of the frequency characteristic analysis unit. FIG. 29 is a block diagram illustrating a schematic configuration of a mobile terminal according to the sixteenth modification. FIG. 30 is a diagram for explaining the operation of the holder terminal specifying unit in the modified example 16. FIG. 31 is a diagram for explaining the operation of the holder terminal specifying unit in the modified example 16. FIG. 32 is a diagram for explaining the operation of the holder terminal specifying unit in the modified example 16. FIG. 33 is a diagram for explaining the operation of the holder terminal specifying unit in the modified example 16. FIG. 34 is a block diagram illustrating a schematic configuration of a mobile terminal according to the modified example 17. In FIG. FIG. 35 is a block diagram illustrating a schematic configuration of a portable device for a vehicle according to Modification 17. FIG. 36 is a diagram for explaining the operation of the holder terminal specifying unit in the modified example 17. FIG. 37 is a block diagram illustrating a schematic configuration of a mobile terminal according to Modification 18. FIG. 38 is a block diagram illustrating a schematic configuration of a mobile device for a vehicle according to Modification 18. FIG. 39 is a diagram for explaining the operation of the holder terminal specifying unit in the modified example 17. FIG. 40 is a block diagram illustrating an example of a schematic configuration of a mobile terminal according to Modification 20. FIG. 41 is a block diagram illustrating a schematic configuration of a portable device-side control unit according to Modification 20. FIG. 42 is a diagram for explaining the operation of the possessing form pattern specifying unit G. FIG. 43 is a flowchart for explaining a holder terminal specifying process performed by the portable device-side control unit of the modification 20. FIG. 44 is a flowchart showing a continuation of the flowchart shown in FIG. FIG. 45 is a diagram showing an outline of the first pattern version variation calculation process. FIG. 46 is a flowchart for explaining the second pattern version variation calculation process. FIG. 47 is a diagram for explaining the effect of the second pattern version variation calculation process. FIG. 48 is a flowchart for explaining the third pattern version variation calculation process. FIG. 49 is a diagram for explaining the operation of the third pattern version variation calculation process. FIG. 50 is a diagram for explaining the operation of the third pattern version variation calculation process.

[Embodiment]
Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a conceptual diagram for explaining an overview of an occupant information acquisition system 1 according to an embodiment. As shown in FIG. 1, an occupant information acquisition system 1 includes an in-vehicle device 100 mounted on a vehicle V used by a plurality of users, a vehicular portable device 200 having a function as a unique key for the vehicle V, Is provided.

Here, the user is a person registered in the vehicle-mounted device 100 as a user of the vehicle V in advance. Here, as an example, it is assumed that four persons A to D are registered as users of the vehicle V. Of course, any number of persons may be registered as users. 300 shown in the figure represents a mobile terminal 300 owned by each of a plurality of users. Each mobile terminal 300 is a communication device having a function of performing short-distance communication, which will be described later, such as a smartphone.

<Schematic configuration of occupant information acquisition system 1>
Each of the vehicle-mounted device 100 and the vehicle portable device 200 has a function for realizing a known smart entry system by performing wireless communication using radio waves of a predetermined frequency band.

Specifically, the vehicle-mounted device 100 includes a function of transmitting a signal of a predetermined LF (Low Frequency) band toward a predetermined range (hereinafter referred to as a wireless communication area) around the vehicle interior and the vehicle V, and the portable device 200 for the vehicle. Has a function of receiving a signal of a predetermined RF (Radio Frequency) band transmitted from. In addition, the vehicle portable device 200 has a function of receiving an LF band signal transmitted from the vehicle-mounted device 100 and a function of returning a predetermined RF band signal to the vehicle-mounted device 100.

Here, as an example, the LF band has a frequency from 20 kHz to 200 kHz. The RF band is a frequency from 300 MHz to 500 MHz. The frequency range indicated by the LF band and the RF band may be designed as appropriate. Of course, radio waves in a frequency band other than the LF band may be used for signal transmission from the vehicle-mounted device 100 to the vehicle portable device 200. Similarly, radio waves in a frequency band other than the RF band may be used for signal transmission from the vehicle portable device 200 to the vehicle-mounted device 100.

In such a configuration, when the vehicle portable device 200 is present in the wireless communication area, the vehicle-mounted device 100 performs an authentication process by wireless communication with the vehicle portable device 200, and based on the fact that the authentication is established, Various controls for carrying out locking / unlocking and engine starting are executed.

Note that the authentication process here refers to a vehicle portable device 200 in which a communication terminal (hereinafter referred to as a communication target) on which the vehicle-mounted device 100 performs wireless communication with itself is associated with the vehicle-mounted device 100. This is a process of confirming that it is a legitimate vehicular portable device 200.

When the vehicle-mounted device 100 authenticates the vehicle portable device 200 by wireless communication, the user carrying the vehicle portable device 200 can lock / unlock the door without operating the vehicle portable device 200 as a key. Engine start / stop and the like can be realized.

Note that the wireless communication area formed by the vehicle-mounted device 100 may be appropriately designed. For example, the wireless communication area outside the passenger compartment is within a few meters from the vehicle V. Each of the vehicle-mounted device 100 and the vehicle portable device 200 stores a vehicle ID that is an identification number unique to the vehicle-mounted device 100 or the vehicle portable device 200. The authentication of the vehicular portable device 200 by the above-described authentication processing is realized using an ID code generated from the vehicle ID. Details of the authentication process will be described later.

Moreover, the portable device 200 for vehicles is provided with the switch 240 operated by the user, and by transmitting a signal corresponding to the switch operated by the user to the vehicle-mounted device 100, locking / unlocking of the vehicle door, etc. A so-called remote keyless entry system that performs control is provided. In this way, the vehicle portable device 200 functions as a key of the vehicle V.

The mobile terminal 300 is a communication device having a function of performing communication (hereinafter referred to as short-range communication) compliant with a predetermined short-range wireless communication standard in which the communication range is, for example, about several tens of meters at the maximum. The mobile terminal 300 only needs to have the above-described short-range communication function. For example, a mobile phone such as a smartphone can be used as the mobile terminal 300. Of course, the portable terminal 300 may be a tablet terminal, a wearable device, a portable music player, a portable game machine, or the like.

As the short-range wireless communication standard here, for example, Bluetooth Low Energy (Bluetooth is a registered trademark), Wi-Fi (registered trademark), ZigBee (registered trademark), or the like can be adopted. Short-range communication corresponds to short-range wireless communication.

The vehicular portable device 200 also has the above-mentioned short-range communication function, detects the mobile terminal 300 existing around the vehicular mobile device 200, and performs short-range communication with the detected mobile terminal 300. Here, the vicinity of the vehicle portable device 200 refers to a range in which the vehicle portable device 200 can perform near field communication (hereinafter referred to as a near field communication range).

The mobile terminal 300 transmits a notification signal including a unique terminal identifier (hereinafter referred to as a terminal ID) assigned to the mobile terminal 300 periodically or based on a request from the mobile device 200 for a vehicle. The mobile device 200 is notified of its presence.

Here, as an example, it is assumed that the vehicle portable device 200 behaves as a master for the portable terminal 300, and the portable terminal 300 behaves as a slave for the vehicle portable device 200. Moreover, the portable terminal 300 notifies the vehicle portable device 200 of its presence by periodically transmitting a notification signal at a predetermined cycle (hereinafter referred to as a notification cycle).

<Outline of operation of occupant information acquisition system 1>
The occupant information acquisition system 1 in the present embodiment generally operates as follows. First, the vehicle portable device 200 is a user carrying the vehicle portable device 200 (hereinafter referred to as a portable device holder) based on the received signal strength of a signal received from the portable terminal 300 existing around the own device. The mobile terminal 300 that is carried by is identified. Here, the own device refers to the portable device 200 for the vehicle itself.

For convenience, hereinafter, the portable terminal 300 carried by the portable device holder is also referred to as a holder terminal. In addition, the process for specifying the holder terminal, which is performed by the vehicle portable device 200, is referred to as a holder terminal specifying process.

And the portable device 200 for vehicles transmits the holder information determined from the terminal ID of the portable terminal 300 identified as the holder terminal to the vehicle-mounted device 100. The holder information is information for the in-vehicle device 100 to identify or recognize a user as a portable device holder. Here, as an example, the holder information is the terminal ID of the mobile terminal 300 identified as the holder terminal.

On the other hand, in-vehicle device 100 is user management data in which the terminal ID of mobile terminal 300 owned by each user is associated with vehicle setting data indicating user-specific settings (for example, seat position). In addition, the user of the vehicle V should just be distinguished by the user ID provided separately for every user.

When the vehicle-mounted device 100 acquires the holder information from the vehicular portable device 200, the vehicle-mounted device 100 refers to the user management data and identifies the user corresponding to the terminal ID included in the acquired holder information. Moreover, the onboard equipment 100 performs the process for pinpointing the position of the portable device 200 for vehicles with respect to the vehicle V independently of the process mentioned above.

If the current position of the vehicular portable device 200 can be specified, the in-vehicle device 100 specifies the seating position of the user specified in the holder information from the position information. For example, when the current position of the vehicle portable device 200 when the holder information is received is near the door for the passenger seat, the seating position of the user as the portable device holder is determined to be the passenger seat. . Further, when the current position of the vehicle portable device 200 when the holder information is received is near the driver's seat door, the seating position of the user as the portable device holder is determined to be the driver's seat. .

Then, when the seating position of the user is specified, the vehicle setting data corresponding to the user is referred to, and the vehicle interior environment such as the seat position is automatically changed to the vehicle interior environment according to the user's preference.

Note that determining that the seating position of the user is the driver's seat corresponds to determining that the user is a user who plays a role as a driver in the current trip. The trip here refers to a series of runs from when the vehicle V starts running until it is parked. Hereinafter, a specific configuration and operation of each element will be described.

<Configuration of the vehicle-mounted device 100>
The vehicle-mounted device 100 is mounted on the vehicle V and is connected to various devices including an ECU (Electronic Control Unit) through a network 400 built in the vehicle as shown in FIG. Has been. For example, the vehicle-mounted device 100 is connected to each of the engine ECU 500, the body ECU 600, and the display 700 so as to be able to communicate with each other.

Engine ECU 500 is an ECU that controls the operation of the engine mounted on vehicle V. Here, as an example, the vehicle V is a vehicle including an engine as a power source, but is not limited thereto. The vehicle V may be an electric vehicle or a hybrid vehicle.

The body ECU 600 is an ECU that controls various actuators mounted on the vehicle V, and is communicably connected to various actuators and sensors. For example, the body ECU 600 locks or unlocks each door by outputting a predetermined control signal to a door lock motor 601 provided at each vehicle door. Further, the position of each seat is changed by outputting a predetermined drive signal to an actuator 602 for adjusting the seat position provided in each seat.

Furthermore, the body ECU 600 is also connected to a courtesy switch 603 arranged for each door, an occupant detection sensor 604 provided for each seat, and the like. The courtesy switch 603 is a sensor that detects opening / closing of a door, and the occupant detection sensor 604 is a sensor that detects the presence of an occupant in the driver's seat. The occupant detection sensor 604 can be realized using a pressure sensor or the like.

The display 700 displays an image corresponding to data input from the vehicle-mounted device 100 or the like. The display 700 may be realized using, for example, a liquid crystal display or an organic EL display. The display 700 may be a head-up display.

The in-vehicle device 100 includes a vehicle-side control unit 110, a UHF receiving unit 120, a UHF antenna 121, and an LF control unit 130 as finer constituent elements. The UHF receiving unit 120 and the LF control unit 130 are connected to the vehicle-side control unit 110 so that they can communicate with each other. The on-vehicle device 100 is also electrically connected to each of the LF antenna 131, the touch sensor 140, and the start button 150.

The UHF antenna 121 converts UHF radio waves into electrical signals and outputs them to the UHF receiver 120. The UHF antenna 121 corresponds to a receiving antenna. In the present embodiment, the on-vehicle device 100 includes the UHF antenna 121 as an example, but the embodiment is not limited thereto. The UHF antenna 121 may be provided outside the on-vehicle device 100 and electrically connected to the on-vehicle device 100.

The UHF receiving unit 120 demodulates the signal input from the UHF antenna 121 and provides the demodulated signal to the vehicle-side control unit 110. The UHF receiver 120 corresponds to a vehicle side receiver.

The LF antenna 131 converts the signal input from the LF control unit 130 into an LF band radio wave and radiates it to space. A plurality of LF antennas 131 are provided at locations that are appropriately designed so as to form a desired transmission area in the vehicle V. Note that the transmission area of the LF antenna 131 is an area that reaches the signal transmitted from the LF antenna 131 while maintaining a signal level at which the vehicle portable device 200 can receive (in other words, can be decoded).

In this embodiment, as an example, the vehicle V includes a DF antenna 131A, a DR antenna 131B, a PF antenna 131C, a PR antenna 131D, and a vehicle interior antenna 131E as the LF antenna 131, as shown in FIG. Shall.

The DF side antenna 131A is an LF antenna 131 provided near the handle of the driver's seat door (including the inside of the handle). The DF-side antenna 131A is designed so that an area that is within a certain range from the door for the driver's seat outside the passenger compartment is a transmission area. ZA in FIG. 3 conceptually represents the transmission area of the DF side antenna 131A. The DF antenna 131A corresponds to the LF antenna 131 corresponding to the driver's seat. In the present embodiment, the driver seat of the vehicle V is provided on the right side of the front seat.

The DR antenna 131B is an LF antenna 131 provided in the vicinity of the door handle for the rear seat on the driver side. The DR-side antenna 131B is designed so that an area that is within a certain range from the door for the driver's seat side rear seat outside the passenger compartment is a transmission area. ZB in FIG. 3 conceptually represents the transmission area of the DR antenna 131B. The DR side antenna 131B corresponds to the LF antenna 131 corresponding to the rear seat, in particular, the rear seat on the driver seat side.

The PF antenna 131C is an LF antenna 131 provided near the handle of the passenger seat door. The PF-side antenna 131C is designed such that an area outside the passenger compartment that is within a certain range from the passenger seat door is a transmission area. ZC in FIG. 3 conceptually represents the transmission area of the PF antenna 131C. The PF antenna 131C corresponds to the LF antenna 131 corresponding to the passenger seat.

The PR side antenna 131D is an LF antenna 131 provided in the vicinity of the door handle for the rear seat on the passenger seat side. The PR-side antenna 131D is designed so that an area outside the passenger compartment that is within a certain range from the door for the passenger seat side rear seat is a transmission area. ZD in FIG. 3 conceptually represents the transmission area of the PR-side antenna 131D. The PR side antenna 131D corresponds to the LF antenna 131 corresponding to the rear seat, particularly the rear seat on the passenger seat side.

The vehicle interior antenna 131E is an LF antenna having the entire vehicle interior as a transmission area. Although only one vehicle interior antenna 131E is shown here, a plurality of vehicle interior antennas 131E may be provided. In FIG. 3, the transmission area of the vehicle interior antenna 131E is not shown.

In addition, the installation position and transmission area of the LF antenna 131 mounted on the vehicle V are not limited to the above-described modes. The installation position and the like of the LF antenna 131 may be designed as appropriate so as to form a desired transmission area. In addition to the LF described above, the vehicle V may be provided with an LF antenna 131 whose transmission area is inside the trunk and an LF antenna 131 whose transmission area is near the trunk door.

The LF antenna 131 corresponds to a transmitting antenna. Further, the DF side antenna 131A, the DR side antenna 131B, the PF side antenna 131C, and the PR side antenna 131D correspond to the vehicle interior antenna, and the vehicle interior antenna 131E corresponds to the vehicle interior antenna. The DF side antenna 131A corresponds to the driver's seat antenna, and the PF side antenna 131C corresponds to the passenger seat antenna.

In the present embodiment, as an example, a range in which a signal transmitted from the LF antenna 131 arrives while maintaining a signal level that can be decoded by the mobile device 200 for the vehicle is adopted as a transmission area of the LF antenna 131. However, it is not limited to this. As another aspect, the transmission area may be a range that propagates at a signal level at which the received signal strength in the vehicular portable device 200 is equal to or higher than a predetermined area determination threshold. The area determination threshold value used here is a value appropriately designed by the designer among values larger than the lower limit value (that is, the decoding limit value) of the decodable signal level. In such an aspect, even when the portable device for vehicle 200 receives the signal from the vehicle-mounted device 100 with a received signal strength that can be decoded, the received signal strength is equal to or less than the area determination threshold value. Is determined to exist outside the transmission area, and no response is returned.

The touch sensor 140 is provided in each door handle of the vehicle V, and detects that the user is touching the door handle. The detection result of each touch sensor 140 is sequentially output to the vehicle side control unit 110. The start button 150 is a push switch for the user to start the engine. When a push operation is performed by the user, the start button 150 outputs a control signal indicating that to the vehicle-side control unit 110.

The LF control unit 130 generates a signal obtained by modulating the data input from the vehicle side control unit 110 into a carrier wave signal. Then, the modulated signal is output to an arbitrary LF antenna 131 among the plurality of LF antennas 131 and radiated as a radio wave to the space. The vehicle side control unit 110 instructs the LF antenna 131 as a signal output destination.

For example, the LF control unit 130 outputs signals to the LF antennas 131 in order so that the transmission timings of the LF antennas 131 do not overlap, and transmits the signals from the LF antennas 131 in order. By shifting the timing of transmitting radio waves from each LF antenna 131, it is possible to prevent a signal transmitted from one LF antenna 131 from interfering with a signal transmitted from another LF antenna 131. The LF control unit 130 corresponds to a vehicle side transmission unit.

The vehicle-side control unit 110 is configured as a normal computer, and includes a CPU 111, a RAM 112, a flash memory 113, an I / O 114, and a bus line that connects these configurations.

The CPU 111 is an electronic circuit module that executes various arithmetic processes, and is realized using a microprocessor or the like. The RAM 112 is a volatile memory, and the flash memory 113 is a nonvolatile memory. The flash memory 113 stores a program (hereinafter referred to as a vehicle control program) for causing a normal computer to function as the vehicle-side control unit 110.

The I / O 114 functions as an interface for the vehicle side control unit 110 to input and output data with various devices such as the body ECU 600, the UHF reception unit 120, the LF control unit 130, and the like. The I / O 114 may be realized using an analog circuit element, an IC, or the like.

The vehicle-side control unit 110 provides various functions by executing a vehicle control program stored in the flash memory 113. Details of functions provided by the vehicle-side control unit 110 will be described later. The vehicle control program only needs to be stored in a non-transitory tangible storage medium. Executing the vehicle control program by the CPU 111 corresponds to executing a method corresponding to the vehicle control program.

The flash memory 113 also includes user management that is data in which the user of the vehicle V, the terminal ID of the portable terminal 300 owned by the user, and vehicle setting data indicating user-specific settings for the vehicle V are associated with each other. Data is stored.

The items that are subject to user-specific settings are items that constitute the vehicle interior environment, such as the seat position, the angles of the vehicle interior mirror and side mirror, the air conditioning temperature, and the like. In addition, when the vehicle V has a function (so-called welcome illumination function) for turning on the illumination provided inside and outside the vehicle interior triggered by the detection of the driver's boarding or boarding preparation operation, the color of the illumination is also determined by the user. It is good also as an item which can be set up by. Furthermore, different settings may be registered for each user for an in-vehicle navigation system (not shown).

<About the function of the vehicle side control part 110>
The vehicle side control part 110 performs the process corresponding to the various functional blocks shown in FIG. 4 by running the vehicle control program mentioned above. That is, the vehicle-side control unit 110 includes, as function blocks, a transmission processing unit F1, a reception processing unit F2, a vehicle information acquisition unit F3, an authentication processing unit F4, a portable device position specifying unit F5, an occupant information acquisition unit F6, and a display processing unit F7. And a user setting reflection unit F8. Note that some or all of the functions executed by the vehicle-side control unit 110 may be realized in hardware by one or a plurality of ICs.

The transmission processing unit F1 generates a signal to be transmitted from each LF antenna 131, designates the LF antenna 131 as an output destination of the signal, and outputs it to the LF control unit 130. Thereby, a desired signal is transmitted as a radio wave from each desired LF antenna 131. As a transmission signal, a signal requesting the return of a predetermined response signal (hereinafter referred to as an authentication signal) to authenticate the portable device 200 for vehicles, or a signal (hereinafter referred to as a scan instruction signal) instructing the start of a scanning process described later. ), A signal for instructing to report the result of the holder terminal specifying process (hereinafter referred to as a report instruction signal).

Here, the authentication signal is a signal that requests the portable device for vehicle 200 to return an ID code generated according to a predetermined rule. Note that the authentication process may be a mode in which authentication is advanced step by step by sequentially transmitting a plurality of types of authentication signals having different security levels. That is, a configuration in which a plurality of types of signals are used as authentication signals may be used. Both the authentication signal and the scan instruction signal are signals requesting the vehicle portable device 200 to return a response signal corresponding to the content of the signal.

The reception processing unit F2 acquires data received by the UHF antenna 121 and demodulated by the UHF receiving unit 120. The vehicle information acquisition unit F3 receives various information (hereinafter referred to as vehicle information) indicating the state of the vehicle from sensors and ECUs mounted on the vehicle V such as the touch sensor 140, the start button 150, the engine ECU 500, the body ECU 600, and the display 700. ) To get.

Vehicle information includes, for example, the open / closed state of the door, the locked / unlocked state of each door, the detection result of the occupant detection sensor 604, the presence / absence of pressing of the touch sensor 140 and the start button 150, and the like. In addition, the information contained in vehicle information is not restricted to what was mentioned above. The vehicle information includes a shift position detected by a shift position sensor (not shown) and a detection result of a brake sensor that detects whether or not the brake pedal is depressed.

Vehicle information acquired by the vehicle information acquisition unit F3 is used for the authentication processing unit F4 and the like to recognize the current state of the vehicle V. For example, the authentication processing unit F4 determines that the vehicle V is parked when the engine is off and all the doors are locked. Of course, the conditions for determining that the vehicle V is parked may be appropriately designed, and known determination conditions and the like can be applied.

The authentication processing unit F4 performs authentication processing by wireless communication with the vehicle portable device 200. Since the procedure of this authentication process is well known, its detailed description is omitted here. The authentication processing unit F4 starts the authentication process when detecting that a predetermined condition for performing the authentication process is satisfied based on the vehicle information acquired by the vehicle information acquisition unit F3. For example, the authentication processing unit F4 performs the authentication process when it is detected that the vehicular portable device 200 has entered the vehicle communication range, or when the start button 150 is pushed.

Whether or not the vehicular portable device 200 has entered the vehicle communication range is determined by, for example, periodically transmitting a polling signal from each LF antenna 131 and receiving a response signal from the vehicular portable device 200 in response to the polling signal. What is necessary is just to determine based on whether it was made. That is, when the response signal from the vehicle portable device 200 is received in a state where the response signal from the vehicle portable device 200 to the polling signal is not received, the vehicle portable device 200 What is necessary is just to determine with having entered into the communication range.

Note that the polling signal may be any signal that requests a response from the vehicle portable device 200. The polling signal may be a dedicated signal for detecting that the vehicular portable device 200 exists in the vehicle communication range, or may be a signal provided for other purposes. It may be an authentication signal or a scan instruction signal. Further, it may be a signal corresponding to another purpose.

The portable device position specifying unit F5 receives a response signal from the vehicle portable device 200 with respect to the signal transmitted from the LF antenna 131, whereby the position of the vehicle portable device 200 with respect to the vehicle V (hereinafter referred to as a portable device position). Is identified. Specifically, in the present embodiment, as an example, the portable device position is specified as follows.

The portable device position specifying unit F5 cooperates with the transmission processing unit F1 to transmit a signal (for example, a polling signal) requesting a response to the vehicle portable device 200 in order from each LF antenna 131. For convenience, a signal used for specifying the position of the portable device is also referred to as a position specifying signal. As described above, the position specifying signal may be a signal for achieving another purpose, such as an authentication signal, or a signal provided only for specifying the position of the portable device. Good.

Here, as an example, as shown in FIG. 5, DF side antenna 131A, DR side antenna 131B, PF side antenna 131C, PR side antenna 131D, and vehicle interior antenna 131E are transmitted in a certain time interval in this order. I will go.

As described above, the LF control unit 130 transmits the position specifying signals from the plurality of LF antennas 131 at different timings. Therefore, the portable device position specifying unit F5 can uniquely specify the LF antenna 131 that has transmitted the position specifying signal responded by the vehicular portable device 200 from the timing at which the response signal to the position specifying signal is received. For example, as shown in FIG. 5, when the response signal is received within a predetermined time from the time when the position specifying signal is transmitted from the PF side antenna 131C, the vehicular portable device 200 transmits the position transmitted from the PF side antenna 131C. It turns out that it responded with respect to the signal for specification.

In addition, the fact that the vehicular portable device 200 returns a response signal to a signal transmitted from a certain LF antenna 131 means that the vehicular portable device 200 exists within the transmission area of the LF antenna 131. . Therefore, the portable device position specifying unit F5 determines that the vehicle portable device 200 exists in the transmission area of the LF antenna 131 from which the response signal is returned.

Since the transmission area of the DF side antenna 131A is set to be within a certain range from the driver's seat door, it is determined that the transmission area of the DF side antenna 131A is within the transmission area of the driver's seat door. This is equivalent to determining that it exists in the vicinity. The same applies to the case where it is determined that the vehicular portable device 200 is present in the transmission area of the LF antenna 131 provided in another door.

Note that the method for specifying the position of the portable device is not limited to the method described above. In addition to the methods described above, various known methods can be applied.

The occupant information acquisition unit F6 identifies the user holding the vehicular portable device 200 based on the holder information transmitted from the vehicular portable device 200. Specifically, the user corresponding to the terminal ID indicated in the holder information is recognized as a portable device holder. In addition, the occupant information acquisition unit F6 specifies the seat (in other words, the sitting position) that the portable device holder is about to sit from the portable device position specified by the portable device position specifying unit F5.

Specifically, the occupant information acquisition unit F6 regards a seat corresponding to the LF antenna 131 having the mobile device position specified by the mobile device position specifying unit F5 as a transmission area as the seating position. For example, when the portable device position is the transmission area of the PF side antenna 131C, it is determined that the sitting position of the portable device holder is the front passenger seat.

This is because each LF antenna 131 for vehicle exterior in the present embodiment is limited to the vicinity of the door corresponding to each seat in the periphery of the vehicle V as shown in FIG. For example, when the position of the portable device is in the vicinity of the door for the passenger seat, the seating position of the portable device holder is likely to be the passenger seat. Therefore, the portable device position specified by the portable device position specifying unit F5 corresponds to the seat that the portable device holder is about to sit out of the seats provided in the vehicle V.

The display processing unit F7 generates image data to be displayed on the display 700 and outputs it to the display 700. As a result, an image corresponding to the generated image data is displayed on the display 700. That is, the display processing unit F7 controls the display screen of the display 700. A specific example of the image displayed by the display processing unit F7 will be described later.

The user setting reflection unit F8 changes the setting of the vehicle cabin environment to an environment according to the user's preference (so-called customization) based on the user's seating position acquired by the occupant information acquisition unit F6. For example, the user setting reflection unit F8 moves the position of the seat on which the user is seated to a position set in advance by the user. The adjustment of the seat position may be realized in cooperation with body ECU 600. For example, body ECU 600 drives an actuator provided in a predetermined seat based on an instruction from user setting reflection unit F8 to move the seat position to the target position.

<Configuration of portable device 200 for vehicle>
As shown in FIG. 6, the vehicle portable device 200 includes a portable device-side control unit 210, a vehicle communication unit 220, a short-range communication unit 230, a switch 240, and an acceleration sensor 250. The portable device-side control unit 210 is communicably connected to the vehicle communication unit 220, the short-range communication unit 230, the switch 240, and the acceleration sensor 250.

The portable device side control unit 210 is a module that controls the operation of the portable device for vehicle 200, and is configured as a normal computer. That is, a CPU 211, a RAM 212, a flash memory 213, an I / O 214, and a bus line for connecting these components are provided.

The flash memory 213 is assigned to the vehicle portable device 200 in order to perform authentication with the program (hereinafter referred to as a portable device control program) for causing a normal computer to function as the portable device-side control unit 210 and the vehicle V. The vehicle ID is stored.

The flash memory 213 stores the terminal ID of the mobile terminal 300 owned by the user of the vehicle V in association with the information (for example, user ID) of the user who owns the mobile terminal 300. Is preferred. For convenience, data indicating the correspondence between the user ID and the terminal ID is referred to as terminal management data. When one user owns a plurality of mobile terminals 300, each mobile terminal 300 may be stored in association with the user. The same applies to the above-described user management data.

The vehicle communication unit 220 is a communication module for communicating with the vehicle-mounted device 100, and includes an LF antenna 221, an LF reception unit 222, a UHF transmission unit 223, and a UHF antenna 224 as finer elements.

The LF antenna 221 converts an LF band radio wave into an electrical signal and outputs it to the LF receiver 222. The LF receiving unit 222 generates data obtained by demodulating the signal input from the LF antenna 221. The LF receiving unit 222 provides the demodulated data of the received signal to the portable device control unit 210.

The UHF transmission unit 223 modulates the data input from the portable device side control unit 210 into an electric carrier wave signal and outputs it to the UHF antenna 224. The UHF antenna 224 converts the electrical signal input from the UHF transmission unit 223 into a UHF band radio wave and radiates it to space. The vehicle communication unit 220 corresponds to the first communication unit.

The near field communication unit 230 is a module for performing near field communication with the mobile terminal 300, and includes a near field communication antenna 231 and a near field communication control unit 232 as finer elements.

The near field communication antenna 231 is an antenna for transmitting and receiving radio waves in a frequency band (for example, 2.4 GHz band) used for near field communication. The near field communication control unit 232 demodulates the signal received by the near field communication antenna 231 and provides the demodulated signal to the portable device side control unit 210, and modulates the signal input from the portable device side control unit 210, thereby The data is output to the distance communication antenna 231 and transmitted.

The short-range communication control unit 232 further includes a reception signal strength detection unit 233 that detects the reception signal strength of the signal received by the short-range communication antenna 231. The short-range communication control unit 232 demodulates the received signal. And the received signal strength are provided to the portable device control unit 210 in association with each other. The short-range communication unit 230 corresponds to the second communication unit.

The switch 240 is a switch for accepting a user operation on the vehicle portable device 200 and is, for example, a push switch. For example, the user can use a remote keyless entry function for unlocking / locking the door of the vehicle V by operating (pushing) the switch 240. A plurality of switches 240 may be provided. Here, as an example, it is assumed that the switch 240 includes a switch 240 for locking the door of the vehicle V and a switch 240 for unlocking the door of the vehicle V.

The acceleration sensor 250 is a sensor for detecting an acceleration acting on the vehicle portable device 200. The acceleration sensor 250 outputs a signal indicating the acceleration acting on the vehicular portable device 200 to the portable device-side control unit 210. The acceleration sensor 250 corresponds to the mobile device side acceleration sensor.

<About the function of the portable device side control unit 210>
As shown in FIG. 7, the portable device side control unit 210 includes a vehicle communication processing unit G1, a power management unit G2, a short-range communication processing unit G3, and a function block that are realized by executing the portable device control program. A person terminal specifying unit G4, an operation receiving unit G5, and a vibration information acquiring unit G6. Note that some or all of the functional blocks described above may be realized in hardware by one or a plurality of ICs.

The vehicle communication processing unit G1 acquires the data received by the LF receiving unit 222 via the LF antenna 221. Further, the vehicle communication processing unit G <b> 1 generates a signal to be transmitted from the UHF antenna 224 and outputs the signal to the UHF transmission unit 223. That is, the vehicle communication processing unit G1 performs software processing related to communication with the vehicle-mounted device 100.

Specifically, as illustrated below, the vehicle communication processing unit G1 generates a response signal to the signal received from the vehicle-mounted device 100, and transmits the response signal from the UHF antenna 224. For example, when the vehicle communication processing unit G1 receives an authentication signal requesting the return of an ID code, the vehicle communication processing unit G1 generates an ID code obtained by encrypting the vehicle ID stored in the flash memory 213 in accordance with a predetermined rule. Then, a signal including the ID code is transmitted. When a scan instruction signal is received, a response signal for starting the holder terminal specifying process is generated and transmitted. When the report instruction signal is received, a holder information signal including the holder information is generated and transmitted.

The power management unit G2 controls the power supply from the power source included in the vehicle portable device 200 to each unit. For example, when it is not necessary to perform short-range communication with the mobile terminal 300, the power management unit G2 uses the short-range communication unit 230 to reduce power consumption for suppressing power consumption in the short-range communication unit 230. Set to mode. When the short-range communication unit 230 is in the low power consumption mode, the short-range communication with the mobile terminal 300 is not performed. The low power consumption mode may be a mode in which the power supply to the entire short-range communication unit 230 is stopped, or a mode in which power consumption is suppressed by limiting the portion that supplies power. As a technique for suppressing power consumption in the short-range communication unit 230, a known technique may be applied. For convenience, a state in which the near field communication unit 230 can perform near field communication with the mobile terminal 300 is referred to as an active mode.

The near field communication processing unit G3 acquires the data received by the near field communication control unit 232 and the received signal strength thereof. The short-range communication processing unit G3 generates a signal to be transmitted to the mobile terminal 300 and outputs the signal to the short-range communication control unit 232.

In addition, the short-range communication processing unit G3 performs a process (hereinafter referred to as a scan process) for detecting the mobile terminal 300 existing around the own device. For example, in the scan process, the short-range communication processing unit G3 sets the short-range communication unit 230 to be able to receive a signal from the mobile terminal 300 (that is, the active mode) for a time corresponding to the notification cycle.

Then, by receiving the notification signal transmitted from the mobile terminal 300 within the time, the mobile terminal 300 existing around the own device is detected. For example, when only the users A and B are within the range in which near field communication is possible from the mobile device 200 for the user among the users A to D, the near field communication processing unit G3 scans the users A and B by the scanning process. The mobile terminal 300 carried by each is detected. Of course, when all of the users A to D are within a range in which near field communication is possible from the mobile device 200 for the vehicle, the near field communication processing unit G3 carries out the mobile terminal 300 carried by each of the users A to D by the scanning process. Is detected.

Note that the scanning process is not limited to the mobile terminal 300 registered as the mobile terminal of the user of the vehicle V, and may be a mode that detects all communication terminals having a short-range communication function around the own device.

The information (for example, terminal ID) about the mobile terminal 300 detected by the scanning process is managed in a list format, for example, in association with the received signal strength of the signal from the mobile terminal 300. That is, the short-range communication processing unit G3 identifies the detected mobile terminal 300 by the terminal ID included in the notification signal received from the mobile terminal 300. The result of the scanning process is stored in the RAM 212.

The holder terminal specifying unit G4 executes a process for specifying the holder terminal. First, when the vehicle communication processing unit G1 receives the scan instruction signal from the vehicle-mounted device 100, the holder terminal specifying unit G4 requests the short-range communication processing unit G3 to start the sampling process. The sampling process is a process for sequentially performing a scan process at a predetermined time interval (for example, 50 milliseconds).

Thereafter, when the vehicle communication processing unit G1 receives the report request signal, the holder terminal specifying unit G4 collects the received signal intensity for each portable terminal 300 from the reception of the scan instruction signal to the reception of the report instruction signal. From this, the degree of change over time in the received signal strength for each portable terminal 300 (hereinafter referred to as the fluctuation amount) is calculated.

Then, the holder terminal specifying unit G4 determines a holder terminal from among the portable terminals 300 existing around the own apparatus based on the fluctuation amount of the received signal strength calculated for each portable terminal 300. Specifically, the holder terminal specifying unit G4 calculates, for each mobile terminal 300, the variance value of the received signal strength of the signal received from the mobile terminal 300 at a plurality of points in time as the above-described fluctuation amount. The variance value in this specification is the same as the variance used in statistics.

Then, the mobile terminal 300 having the smallest variance value as the fluctuation amount is determined as the holder terminal. The reason why the portable terminal 300 having the smallest variation in received signal strength among the plurality of portable terminals 300 is the holder terminal is as follows.

Generally, frequencies such as 2.4 GHz are used for near field communication. Such high-frequency radio waves are greatly attenuated by the human body or the like. Therefore, even when the same person is holding, such as when the portable device holder's body exists between the portable device for vehicle 200 and the portable terminal 300 of the portable device holder, depending on the positional relationship The received signal strength is greatly attenuated. In addition, high frequency radio waves are easily reflected by a metal plate such as a vehicle body. Therefore, a mobile terminal with a high received signal strength is not necessarily the closest mobile terminal. The mobile terminal 300 held by other users than the mobile terminal 300 carried by the same person due to the output level of the mobile terminal 300, the antenna directivity of the mobile terminal 300 and the mobile device 200 for the vehicle, and the surrounding environment. There are cases where the received signal strength is higher.

On the other hand, if the positional relationship between the portable device for vehicle 200 and the portable terminal 300 by the portable device holder does not change, it is expected that the rate of change in received signal strength is small. In addition, the strength of the received signal from the portable terminal 300 possessed by a person other than the portable device holder is highly likely to vary greatly depending on the positional relationship between the portable device holder and the user, the body orientation, and the like.

That is, the portable terminal 300 with the smallest fluctuation amount of the received signal strength is highly likely to be a holder terminal. Based on this idea, the holder terminal specifying unit G4 in the present embodiment determines that the portable terminal 300 having the smallest fluctuation amount of the received signal strength is the holder terminal. For the reasons described above, the holder terminal can be specified more accurately by specifying the holder terminal based on the amount of fluctuation in the received signal strength rather than the magnitude of the received signal strength.

Note that, here, as an example, a variance value determined as a population of received signal strengths detected at a plurality of time points is adopted as a variation amount, but the present invention is not limited thereto. The fluctuation amount may be a difference between the maximum value and the minimum value of the received signal strength detected at a plurality of time points. Further, another index for evaluating variation, such as a standard deviation, may be employed as the variation amount.

If there is only one mobile terminal 300 around the own device and the received signal strength from the mobile terminal 300 is greater than or equal to a predetermined reception strength threshold, the mobile terminal 300 May be determined as the holder terminal. Here, the reception intensity threshold is a threshold for identifying whether or not the distance between the portable device for vehicle 200 and the detected portable terminal 300 is a certain distance (for example, 10 m) or more. Further, if there is no portable terminal 300 in the vicinity of the own device where the received signal strength is equal to or greater than the reception strength threshold, it may be determined that there is no holder terminal. Note that the reception intensity threshold value used here may correspond to a lower limit value of a signal level at which the vehicle portable device 200 can receive a signal from the mobile terminal 300.

When the holder terminal identification unit G4 determines the holder terminal, it provides the terminal ID of the holder terminal to the vehicle communication processing unit G1. When receiving the report instruction signal, the vehicle communication processing unit G1 transmits a holder information signal including the holder information determined from the terminal ID of the holder terminal to the vehicle-mounted device 100. The holder information in the present embodiment is the terminal ID of the holder terminal as described above. Further, when the holder terminal specifying unit G4 determines that the holder terminal does not exist, the vehicle communication processing unit G1 transmits a holder information signal indicating that to the vehicle-mounted device 100. As another mode, portable device for vehicle 200 may transmit a user ID associated with the terminal ID of the holder terminal as the holder information.

For convenience, hereinafter, received signal strengths at a plurality of time points used for calculation of the fluctuation amount will be referred to as specific received strength data, and a period during which the received signal strength as the specific received strength data is collected will be referred to as a sampling period. In the present embodiment, the period from the start of the scan instruction signal to the reception of the report instruction signal corresponds to the sampling period.

In this embodiment, the received signal strength acquired from the reception of the scan instruction signal to the reception of the report instruction signal is adopted as the specific reception strength data, but the present invention is not limited to this. For example, the received signal intensity collected from when the scan instruction signal is received until a predetermined sampling time elapses may be adopted as the specific received intensity data. The sampling time is preferably set to such a length that the propagation environment of radio waves for near field communication can change, such as the positional relationship between the portable device holder and a user other than the portable device holder. For example, the sampling time may be about several seconds to 10 seconds. Furthermore, as will be described later as Modification 5, the sampling period is not limited to the period from when the scan instruction signal is received to when the report instruction signal is received.

In this embodiment, from the viewpoint of power consumption suppression, when a report instruction signal is received, the sampling process is terminated and the short-range communication unit 230 is shifted to the low power consumption mode. Of course, as another aspect, the sampling process may be continued after the report instruction signal is received.

The operation accepting unit G5 identifies a user operation on the switch 240 based on a control signal input from the switch 240, and provides the operation content to other functional units. And each part implements the process according to the content of the user operation which operation reception part G5 specified. For example, when the operation reception unit G5 detects that the switch 240 for unlocking the door of the vehicle V is pushed by the user, the vehicle communication processing unit G1 signals to unlock the door. Is transmitted to the vehicle-mounted device 100. The vibration information acquisition unit G6 acquires the acceleration acting on the vehicle portable device 200 provided from the acceleration sensor 250.

<Configuration of mobile terminal 300>
As described above, the mobile terminal 300 only needs to have a function for performing near field communication, and various mobile communication devices such as a smartphone can be employed as the mobile terminal 300 in the present embodiment. . A schematic configuration of the mobile terminal 300 is shown in FIG. As illustrated in FIG. 8, the mobile terminal 300 includes a terminal-side control unit 310 and a short-range communication unit 320.

The terminal-side control unit 310 is configured as a computer including a CPU, a RAM, a flash memory, an I / O, and the like, and executes various processes by executing a mobile terminal program stored in the flash memory. Note that some or all of the functions executed by the terminal-side control unit 310 may be configured in hardware by one or a plurality of ICs.

The terminal-side control unit 310 includes a storage unit 311 that is realized using a non-volatile storage medium such as a flash memory. The storage unit 311 stores a terminal ID unique to the mobile terminal 300 and various software.

The short-range communication unit 320 is a communication module for the mobile terminal 300 to perform short-range communication with the vehicle portable device 200, and the configuration thereof is the same as the short-range communication unit 230 included in the vehicle portable device 200. is there.

<Holder specific related processing>
Next, in order to specify the user who is holding the vehicle portable device 200 and the seating position of the user, the vehicle-mounted device 100, the vehicle-side control unit 110 of the vehicle-mounted device 100, the portable device 200 of the vehicle. Processing performed by each of the machine-side control units 210 will be described. For convenience, the processing performed by the vehicle-side control unit 110 is referred to as vehicle-side processing, and the processing performed by the portable device-side control unit 210 of the vehicle portable device 200 is referred to as portable device-side processing. The vehicle-side process and the portable device-side process are collectively referred to as a holder specifying related process.

<Vehicle side processing>
First, vehicle-side processing will be described using the flowchart shown in FIG. This vehicle-side process is started, for example, when authentication by wireless communication between the vehicle-mounted device 100 and the vehicle portable device 200 is established in a state where the vehicle V is parked. That is, it is started when the authentication with the vehicle portable device 200 existing outside the passenger compartment is successful. Of course, the conditions for starting the vehicle-side process may be appropriately designed. For example, it may be a case where it is detected that the vehicular portable device 200 has entered the vehicle communication range.

First, in step S101, the transmission processing unit F1 transmits a position specifying signal from a specific LF antenna 131 (for example, the DF antenna 131A), and the process proceeds to step S102. In step S102, the reception processing unit F2 determines whether a response signal to the position specifying signal transmitted in step S101 has been received.

If a response signal is received, an affirmative determination is made in step S102 and the process proceeds to step S103. On the other hand, if a response signal cannot be received even after a lapse of a certain time after performing Step S101, the process returns to Step S101, and an LF antenna 131 different from the LF antenna 131 that has transmitted the previous position specifying signal. To transmit a position specifying signal. That is, steps S101 to S102 are processing for transmitting the position specifying signals in order from the plurality of LF antennas 131. Note that the order in which the position specifying signals are transmitted in the plurality of LF antennas 131 may be appropriately designed. Further, if no response signal is obtained even if the position specifying signals are transmitted from all the LF antennas 131, the authentication process may be performed again.

In step S103, the portable device position specifying unit F5 specifies the position of the portable device based on the transmission area of the LF antenna 131 (hereinafter referred to as a response acquisition antenna) that has transmitted the position specifying signal from which the response signal is obtained. Move on.

In step S104, the transmission processing unit F1 transmits a scan instruction signal from the predetermined LF antenna 131 via the LF control unit 130, and proceeds to step S105. The scan instruction signal may be transmitted sequentially from all the LF antennas 131, or may be transmitted only from the LF antenna 131 that has transmitted the position specifying signal from which the response signal is obtained in step S102.

In step S105, the transmission processing unit F1 transmits a report instruction signal and proceeds to step S106. The LF antenna 131 that transmits the report instruction signal is the same as the LF antenna 131 that transmits the scan instruction signal. The timing for transmitting the report instruction signal may be the timing when the sampling time has elapsed since the scan instruction signal was transmitted in step S104.

In step S106, the holder information signal transmitted from the vehicular portable device 200 is received, and the process proceeds to step S107. In step S107, the user as the portable device holder is specified based on the terminal ID as the holder information included in the holder information signal and the user management data stored in the flash memory 113. That is, with reference to the user management data, the user associated with the terminal ID as the holder information is recognized as the portable device holder.

In step S108, the occupant information obtaining unit F6 identifies the seating position of the user as the portable device holder based on the portable device position identified by the portable device position identifying unit F5 in step S104, and proceeds to step S109. In step S109, the user setting reflecting unit F8 determines the vehicle interior environment such as the seat position specified in step S109, the air conditioning target temperature, and the air volume according to the preference of the user corresponding to the portable device holder specified in step S108. Change the settings so that the environment is satisfied, and end this flow.

<Handling side processing>
Next, the portable device side processing will be described using the flowchart shown in FIG. The conditions for starting the portable device side process may be appropriately designed. Here, it is assumed that authentication by wireless communication between the vehicle-mounted device 100 and the vehicle portable device 200 is established as in the vehicle-side processing. It is assumed that the near field communication unit 230 is in the low power consumption mode at the start of this flow.

First, in step S201, the vehicle communication processing unit G1 determines whether or not a position specifying signal has been received. When the position specifying signal is received, an affirmative determination is made in step S201, and the process proceeds to step S202. On the other hand, if the position specifying signal has not been received, a negative determination is made in step S201, and step S201 is repeated. In addition, after starting this flow, in other words, when the position specifying signal is not received after a lapse of a certain time after the completion of the authentication process, the authentication process may be started again.

In step S202, a response signal to the position specifying signal received in step S201 is returned, and the process proceeds to step S203. In step S203, it is determined whether a scan instruction signal has been received. If a scan instruction signal has been received, an affirmative determination is made in step S203 and the process proceeds to step S204. On the other hand, if the scan instruction signal is not received even after waiting for a predetermined time after the response signal is returned in step S202, the determination in step S203 is negative and the process returns to step S201.

In step S204, the vehicle communication processing unit G1 returns a response signal indicating that the scan instruction signal has been normally received, and then proceeds to step S205. In step S205, the power management unit G2 shifts the short-range communication unit 230 from the low power consumption mode to the active mode, and proceeds to step S206.

In step S206, the short-range communication processing unit G3 starts sampling processing and proceeds to step S207. In step S207, it is determined whether or not the vehicle communication processing unit G1 has received the report instruction signal. If a report instruction signal is received, an affirmative determination is made in step S207 and the process proceeds to step S208. Until the report instruction signal is received, the determination in step S207 may be performed sequentially.

In step S208, the short-range communication processing unit G3 ends the sampling process, and the holder terminal specifying unit G4 receives the received signal strength for each portable terminal 300 based on the received signal strength for each portable terminal 300 collected in step S205. Is calculated. Then, the portable terminal 300 having the smallest fluctuation amount is determined as the holder terminal, and the process proceeds to step S209. The power management unit G2 shifts the short-range communication unit 230 to the low power consumption mode when the sampling process is completed.

In step S209, the vehicle communication processing unit G1 transmits a holder information signal to the vehicle-mounted device 100, and ends this flow.

In the present embodiment, as an example, the vehicle-mounted device 100 transmits a report instruction signal, and the portable device for vehicle 200 transmits a holder information signal triggered by reception of the report instruction signal. However, the present invention is not limited thereto. . The on-vehicle device 100 may be configured not to transmit a report instruction signal. In this case, the vehicle portable device 200 may be configured to transmit a holder information signal when the holder terminal specifying unit G4 has completed specifying the holder terminal.

<Summary of this embodiment>
The mobile device for vehicle 200 detects the mobile terminal 300 existing around the mobile device 300 by performing a scanning process, and acquires the received signal strength of the signal transmitted from each mobile terminal 300. Further, the holder terminal is determined based on the variation amount of the received signal strength of the signal transmitted from each portable terminal 300, and the holder information signal including the terminal ID of the holder terminal is returned to the vehicle-mounted device 100. Further, when receiving the position specifying signal transmitted from the vehicle-mounted device 100, the vehicle portable device 200 returns a response signal to the position specifying signal.

On the other hand, the vehicle-mounted device 100 specifies the user holding the vehicle portable device 200 based on the holder information signal transmitted from the vehicle portable device 200. Further, the vehicle-mounted device 100 specifies the portable device position by receiving a response signal from the vehicle portable device 200 with respect to the position specifying signal, and further determines the seating position of the portable device holder from the specified portable device position. Identify. Then, the seating position of the user as the portable device holder is identified by associating the identified seating position with the user as the portable device holder.

According to such an aspect, it is not necessary to arrange a plurality of receivers for performing short-range communication with the mobile terminal 300 in the vehicle V in order to estimate the seating position of the user who uses the vehicle. The vehicle portable device 200 only needs to have a function of performing near field communication with the mobile terminal 300. Therefore, the number of receivers for performing short-range communication with the mobile terminal 300 can be reduced, and accordingly, the introduction cost of a system (that is, an occupant information acquisition system) that identifies the seating position of the user can be reduced. it can.

In particular, according to the configuration of the present embodiment, it can be realized by using existing smart entry system equipment. Therefore, the introduction cost of the occupant information acquisition system can be further reduced. Moreover, the design change of the existing system accompanying introduction of a passenger | crew information acquisition system can also be suppressed.

As mentioned above, although embodiment was illustrated, the technical idea of this indication can be embodied as various embodiments including the various modifications described below. Moreover, it can also be set as embodiment by combining suitably the following various modifications.

In addition, about the member which has the same function as the member described in the above-mentioned embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. In addition, when only a part of the configuration is mentioned, the configuration of the above-described embodiment can be applied to the other portions.

[Variation 1: Variation of the method for identifying the LF antenna to which the portable device for the vehicle responds]
In the above-described embodiment, the LF antenna 131 identifies which LF antenna 131 has transmitted the position identifying signal by shifting the timing for transmitting the position identifying signal from the plurality of LF antennas 131. Although the aspect was illustrated, it is not restricted to this.

For example, when the transmission areas of the plurality of LF antennas 131 are designed so as not to overlap each other (in other words, not to interfere with each other), as shown in the uppermost part of FIG. The position specifying signal may be transmitted simultaneously.

However, in this case, it is assumed that a return timing different for each LF antenna 131 is specified in the position specifying signal transmitted from each LF antenna 131. For example, it is assumed that the return timing is specified so that the position specifying signal transmitted from the DF-side antenna 131A is returned at a timing when a predetermined first waiting time T1 has elapsed since reception. Similarly, T2 to T5 in the figure conceptually represent the standby time for designating the return timing for each LF antenna 131.

Even if the transmission timing is the same, by changing the return timing for each LF antenna 131 as described above, the in-vehicle device 100 can identify the transmission source antenna based on the timing at which the response signal is returned from the vehicle portable device. can do.

For example, when the vehicle-mounted device 100 receives the response signal after the third waiting time T3 has elapsed since the position specifying signal is transmitted all at once, the on-vehicle device 100 is PF The side antenna 131C is determined.

The source antenna can also be specified by the mode described in the first modification. In addition, since the position specifying signals are transmitted from the LF antennas 131 at the same time, the worst value of the time required for specifying the position of the portable device can be suppressed.

[Modification 2: Modification of transmission area of LF antenna]
In the above-described embodiment, the transmission area of the LF antenna 131 corresponding to each seat, such as the DF antenna 131A, is set near the door corresponding to the seat outside the passenger compartment as shown in FIG. Not exclusively. As shown in FIG. 12 as a second modification, the transmission areas of the DF side antenna 131A, the DR side antenna 131B, the PF side antenna 131C, and the PR side antenna 131D are seats corresponding to the LF antenna 131 in the vehicle interior. It may be set to include a nearby space. In FIG. 12, the vehicle interior antenna 131E and its transmission area are not shown.

[Modification 3: Modification of the method for specifying the position of the portable device]
Moreover, the identification method of a portable device position is not restricted to the method mentioned above. It is good also as an aspect which pinpoints a portable machine position using the structure shown below as the modification 3. FIG. First, in Modification 3, the radio wave arrival distance of each LF antenna 131 is set to several meters to about 10 meters so that the transmission area of each LF antenna 131 overlaps most of the transmission areas of other LF antennas 131. design.

FIG. 13 conceptually shows the transmission area of each LF antenna 131 in the third modification. In FIG. 13, for the sake of convenience, the illustration of the vehicle interior antenna 131E and its transmission area is omitted, but the vehicle interior antenna 131E is similarly formed so as to form a sufficiently large transmission area to include the outside of the vehicle interior in the transmission area. It is assumed that it is designed. And the vehicle side control part 110 shifts a timing in order from the some LF antenna 131, and transmits the signal for position specification similarly to the above-mentioned embodiment.

When receiving the position specifying signal, the vehicle portable device 200 returns a response signal including information indicating the received signal strength (hereinafter referred to as received strength information). It is assumed that a circuit for detecting the received signal strength of the LF band signal is mounted on the vehicle communication unit 220 of the vehicle portable device 200 as a premise.

The portable device position specifying unit F5 estimates the distance between the transmission source antenna and the vehicle portable device 200 from the reception intensity information included in the response signal. And portable machine position specific | specification part F5 specifies a portable machine position from the distance from the three LF antennas 131 in which installation positions differ, and the installation position in the vehicle V of these three LF antennas 131, respectively.

Note that, since a radio signal is generally attenuated in the process of propagating in space, the received signal strength becomes smaller as the distance between the portable device 200 for vehicle and the LF antenna 131 increases. Therefore, the portable device position specifying unit F5 determines whether the position specifying signal is transmitted between the LF antenna 131 that has transmitted the position specifying signal and the vehicle portable device 200 based on the reception intensity information included in the response signal returned to the position specifying signal. The distance can be determined.

For example, the portable device position specifying unit F5 uses the received signal strength of the position specifying signal based on the distance conversion data representing the correspondence between the distance between the LF antenna 131 and the vehicle portable device 200 and the received signal strength. The distance between the LF antenna 131 that transmitted the position specifying signal and the vehicle portable device 200 is specified. The distance conversion data may be generated by various tests and registered in advance in the flash memory 113 as part of the vehicle control program.

According to such an aspect, the portable device position specifying unit F5 specifies the position of the vehicle portable device 200 with respect to the vehicle V when the response signal to the position specifying signal transmitted from at least three LF antennas 131 can be received. can do.

It should be noted that the installation position of the LF antenna 131 in the vehicle V may be expressed as a point on a two-dimensional coordinate parallel to the road surface with an arbitrary position of the vehicle V as the center. For example, the X axis forming the two-dimensional coordinate system may be parallel to the vehicle front-rear direction, and the Y axis may be parallel to the vehicle width direction. The center of the two-dimensional coordinate system may be, for example, the center of the rear wheel axle. Such data indicating the installation position of the LF antenna 131 or the like in the vehicle V is referred to as vehicle body setting data. The vehicle body setting data includes a position where each seat is provided. The vehicle body setting data may be stored in the flash memory 113 or the body ECU 600.

The specified mobile device position may also be expressed as a point on the above-described two-dimensional coordinate system. Then, the occupant information acquisition unit F6 regards the seat closest to the portable device position specified by the portable device position specifying unit F5 as the seat corresponding to the current portable device position. That is, the seat closest to the portable device position specified by the portable device position specifying unit F5 is determined as the sitting position of the portable device holder.

Also in this manner, the position of the portable device and the seating position of the portable device holder can be identified.

[Modification 4: Modification of Scan Timing Signal Transmission Timing]
The conditions for transmitting the scan instruction signal (hereinafter referred to as scan instruction conditions) may be designed as appropriate. For example, when it is detected that the vehicular portable device 200 has entered the communication range of the vehicle-mounted device 100, or when authentication with the vehicular portable device 200 is established, the user can touch the touch sensor 140 in a state where the authentication is established. When touched, the courtesy switch 603 may detect that the door of the vehicle V has been opened. Further, when it is detected that the vehicular portable device 200 is present in the passenger compartment of the vehicle, or when the occupant detection sensor 604 detects that the user is seated in the driver's seat, the driver's seat door is closed. As a scan instruction condition, it may be detected that the seat belt is attached, the start button 150 is pressed, or the like. Furthermore, the scan instruction condition may be a combination of the various conditions described above.

That is, the scan instruction condition, in other words, the timing for transmitting the scan instruction signal may be appropriately designed. The transmission processing unit F1 may determine whether the scan instruction condition is satisfied based on the vehicle information acquired by the vehicle information acquisition unit F3.

[Modification 5: Modification of sampling period]
In the above description, as an example, the holder terminal specifying unit G4 causes the short-range communication processing unit G3 to start sampling processing with the reception of the scan instruction signal as a trigger, but the present invention is not limited thereto. As another aspect, the holder terminal specifying unit G4 may start the sampling process triggered by reception of a signal provided for another purpose such as a polling signal or an authentication signal.

In addition, the holder terminal specifying unit G4 detects when the operation receiving unit G5 detects that the switch 240 is pushed by the user, or when a signal indicating acceleration equal to or greater than a predetermined threshold is input from the acceleration sensor 250. The sampling process may be started. It should be noted that at least the sampling time is stored in the RAM 212 or the like as the result of the scan processing performed sequentially.

Then, in the case where the event other than the reception of the scan instruction signal is used as the trigger for starting the sampling process in the portable device 200 for the vehicle, the vehicle-mounted device 100 does not transmit the scan instruction signal, and the predetermined report instruction condition A mode in which a report instruction signal is transmitted when is satisfied.

According to such an aspect, when the vehicular portable device 200 receives the report instruction signal, the received signal strength of each portable terminal 300 is determined from the result of the scan processing performed within the past sampling time from the reception time point. The amount of change can be calculated to identify the holder terminal. As shown in FIG. 14, the fifth modification corresponds to adopting a period that is within the past sampling time from the time when the report instruction signal is received as the sampling period.

Further, as shown in FIG. 15, the holder terminal may be determined based on the result of a plurality of scan processes performed at a certain time before and after the time when the report instruction signal is received. In other words, the sampling period may be set so as to extend before and after the time when the report instruction signal is received. In addition, the portable device 200 for vehicles is good also as an aspect which continues a sampling process, after returning a holder | retainer information signal with reception of a report instruction | indication signal.

In the above, various sampling period setting modes have been illustrated, but in any case, the time zone used as the sampling period is determined based on the point in time when at least one of the scan instruction signal and the report instruction signal is received. Accordingly, each of the scan instruction signal and the report instruction signal corresponds to a command signal.

[Modification 6: Presentation of driver candidates]
When it is determined that the seating position of the portable device holder is other than the driver's seat, the display processing unit F7 is a list of users other than the portable device holder, and the user inputs a user as a driver. A screen may be displayed on the display 700. For example, when the user A is determined as the portable device holder among the users A to D and the seating position of the user A is determined to be a seat other than the driver's seat, the display processing unit F7 displays the user B to D. A screen for selecting a user as a driver from among them is displayed on the display 700.

According to such an aspect, even when a user other than the user who plays a role as a driver carries the vehicular portable device 200, the vehicle-mounted device 100 can recognize the user as the driver. .

In addition, the case where it is determined that the seating position of the portable device holder is other than the driver's seat corresponds to an example in which the user as the driver cannot be specified. The display processing unit F7 displays the screen described above on the display 700 not only when the seating position of the portable device holder is determined to be other than the driver's seat but also when the user seated in the driver's seat cannot be specified. Is preferably displayed. For example, when the seating position of the portable device holder cannot be specified, the display processing unit F7 may cause the display 700 to display the above-described screen. The display processing unit F7 that performs the above-described processing corresponds to a driver candidate presentation processing unit.

[Variation 7: Information on passengers other than the portable device holder is also transmitted]
The vehicular portable device 200 may transmit not only the holder information but also occupant information indicating a list of users existing around the own device 100. The occupant information may be a list of terminal IDs of the mobile terminals 300 detected by the sampling process, or may be a list of user IDs determined from those terminal IDs. The conversion from the terminal ID to the user ID may be performed by referring to the terminal management data stored in the flash memory 213.

And the portable device 200 for vehicles should just be set as the aspect which transmits the holder | retainer information signal containing passenger | crew information in addition to holder | retainer information. In addition, it is good also as an aspect which transmits passenger | crew information to the onboard equipment 100 as a signal different from a holder | retainer information signal.

According to such an aspect, the vehicle-mounted device 100 can recognize a user who gets on the current trip among all users. That is, a user as an occupant other than the portable device holder can also be recognized. For example, when the terminal IDs of the users A and B are acquired as occupant information, it is determined that the users A and B get on.

In such a situation, if the user A is determined to be a portable device holder and the seating position is determined to be the passenger seat, the seating position of the user B as the remaining passenger is other than the passenger seat. It can be determined that

In addition, this modified example 7 improves the convenience of the user when a user other than the user who plays the role of a driver carries the vehicular portable device 200 by combining with the above modified example 6. it can. That is, the display processing unit F7 may display a screen on which the user inputs a user as a driver, which is a list of users other than the portable device holder, on the display 700.

[Variation 8: When there are a plurality of vehicle portable devices 200]
Although the case where the number of the portable device 200 for vehicles matched with the vehicle V was illustrated above, it is not restricted to this. When two or more vehicular portable devices 200 are associated with the vehicle V, the same processing may be performed on each vehicular portable device 200.

In this modification 8, the plurality of vehicle portable devices 200 each transmit a signal including a unique portable device ID, and the vehicle-mounted device 100 selects a communication partner based on the portable device ID included in the received signal. Shall be identified. In this case, the authentication process between the vehicle-mounted device 100 and the vehicle portable device 200 may be implemented using a portable device ID instead of the vehicle ID.

[Variation 9: Variation of user setting data acquisition source]
In the above-described embodiment, the vehicle setting information for each user is registered in the vehicle-mounted device 100. However, the present invention is not limited to this. The vehicle setting information for each user may be stored in the portable terminal 300, acquired from the portable terminal 300 that the portable device for vehicle 200 determines as the holder terminal, and further transferred to the in-vehicle device 100. . Such an aspect is called a user setting transfer method.

Moreover, as another aspect, each ECU corresponding to an actuator or electronic device that can be a control target stores vehicle settings for each user in a range related to the ECU, and the vehicle-mounted device 100 stores the portable device holder. It is good also as an aspect which notifies each ECU to user ID to show. In such an aspect, each ECU reads a vehicle setting corresponding to the user ID notified from the vehicle-mounted device 100 and changes the setting.

For example, the setting for each user with respect to the seat position is provided in the body ECU 600, the setting for each user with respect to the navigation device is provided in the navigation ECU, and the air conditioning settings such as the passenger compartment temperature are provided in the air conditioning ECU that controls the air conditioning system. . And various ECUs read the setting corresponding to the user ID notified from the onboard equipment 100, and reflect a user setting. In addition, when employ | adopting this user ID notification system, the onboard equipment 100 should just hold | maintain the user ID which shows the user of the vehicle V. FIG. Of course, when the portable device for vehicle 200 transmits the terminal ID as the holder information, the user ID and the terminal ID may be held in association with each other.

As described above, the vehicle-mounted device 100 only notifies each ECU of the user ID, and the above-described method (hereinafter referred to as the user ID notification method) also reflects the setting corresponding to the user ID notified by each ECU. The same effects as in the embodiment and the like are achieved. Further, according to this user ID notification method, each ECU can individually determine what setting should be applied.

Furthermore, according to the user ID notification method, even when a service capable of setting preferences for each user appears, a user, a designer, a dealer, or the like sets the settings for each user in the ECU that provides the service. If the user is registered, the user can use the service. In other words, it is not necessary to rewrite the software of the vehicle-mounted device 100 so that the new service can be used each time a new service appears. According to the user ID notification method, it is possible to flexibly cope with a new function added to the vehicle. It should be noted that a new function added to the vehicle can also be flexibly dealt with by the user setting transfer method mentioned at the beginning of this modified example 9.

[Modification 10: Identification method of portable device holder]
In the state where the vehicle V is parked, the method for specifying the user as the portable device holder who intends to use the vehicle V is not limited to the method exemplified as the embodiment. The portable device holder can also be specified by the following method. Note that various modifications to the above-described embodiment can be applied to the tenth modification as long as no contradiction arises.

The process for specifying the portable device holder in the modified example 10 includes a process performed by the vehicle-side control unit 110 (hereinafter referred to as “holder information acquisition process”) and a process performed by the vehicle portable device 200 (hereinafter referred to as “hold”). Person information provision processing). The holder information provision process is a process corresponding to the holder information acquisition process performed by the vehicle-side control unit 110. Hereinafter, each processing will be described.

<Holder information acquisition process>
First, the holder information acquisition process performed by the vehicle-side control unit 110 will be described using the flowchart shown in FIG. The holder information acquisition process is a process for acquiring the holder information. This occupant information acquisition process may be started when the authentication processing unit F4 detects that the vehicle V is parked.

First, in step S301, the transmission processing unit F1 transmits a polling signal from a predetermined LF antenna 131 based on a request from the authentication processing unit F4. Note that it is not necessary to specify the position of the portable device from the viewpoint of acquiring the holder information. Therefore, a polling signal, an authentication signal, and the like may be transmitted from each LF antenna 131 at the same time. Of course, as in the embodiment, the transmission timing may be shifted for each LF antenna 131. When a polling signal is transmitted from the predetermined LF antenna 131, the process proceeds to step S302.

In step S302, the reception processing unit F2 determines whether a response signal to the polling signal transmitted in step S301 has been received. If a response signal is received, an affirmative determination is made in step S302 and the process proceeds to step S303. On the other hand, if a response signal is not received after a lapse of a certain time from the transmission of the polling signal in step S301, a negative determination is made in step S302 and the process returns to step S301. As a result, the vehicle-mounted device 100 continues to periodically transmit the polling signal at predetermined time intervals until a response signal to the polling signal is received.

In step S303, based on the request from the authentication processing unit F4, the transmission processing unit F1 transmits an authentication signal from the LF antenna 131, and proceeds to step S304. In step S <b> 304, it is determined whether or not the authentication of the vehicle portable device 200 has succeeded.

Specifically, the response signal for the authentication signal transmitted in step S303 is received, and the ID code indicated in the received signal satisfies a predetermined relationship with the vehicle ID registered in the vehicle-mounted device 100. In this case, it is determined that the authentication is successful. On the other hand, when the response signal cannot be received within a certain time after the authentication signal is transmitted, or when the ID code indicated in the returned response signal does not satisfy the predetermined relationship with the vehicle ID. Determines that the authentication has failed.

If the authentication is successful, an affirmative determination is made in step S304 and the process proceeds to step S305. When the authentication is successful, the authentication processing unit F4 sets each door provided in the vehicle to the unlocking preparation state. The unlocking preparation state is a state in which the user can unlock the door only by touching the door touch sensor 140. On the other hand, if the authentication fails, a negative determination is made in step S304 and the process returns to step S301.

In step S305, the vehicle information acquisition unit F3 determines whether or not the user has touched the door handle (strictly, the touch sensor 140) based on a signal input from the touch sensor 140. If a signal indicating that the user has touched the touch sensor 140 is input, it is determined that the user has touched the door handle, and the process proceeds to step S306. Until the signal indicating that the user touches the touch sensor 140 is input, the determination process in step S305 is sequentially performed. However, if it is not detected that the touch has been made even after a predetermined time has elapsed, the process may return to step S301.

In step S306, the authentication processing unit F4 cooperates with the body ECU 600 to unlock the vehicle door. Further, the transmission processing unit F1 transmits a report instruction signal based on the request from the authentication processing unit F4, and proceeds to step S307. In step S307, the reception processing unit F2 receives the holder information signal returned from the vehicle portable device 200, and proceeds to step S308.

Note that, as will be described in detail later, the holder information returned at the time of step S307 may not be identified by the portable device holder in the vehicle portable device 200 and may be unknown. is there. That is, the holder information indicating that the holder terminal is unknown may be returned. Of course, when the holder terminal can be specified, the holder information indicating the terminal ID of the portable terminal 300 is returned.

In step S308, the holder information indicated in the holder information signal received in step S307 is referred to and it is determined whether or not the vehicle portable device 200 can identify the holder terminal. When the holder terminal can be specified, an affirmative determination is made in step S308 and the process proceeds to step S313. On the other hand, if the holder terminal cannot be specified, a negative determination is made in step S308, and the process proceeds to step S309.

In step S309, it is determined whether the portable device holder has boarded the vehicle V or not. Conditions for determining that the vehicle V has been boarded may be appropriately designed. Here, as an example, an authentication signal is transmitted from the vehicle interior antenna 131E, and it is determined that the portable device holder has boarded when the vehicle portable device 200 is successfully authenticated.

As another aspect, it may be determined that the portable device holder has boarded when it is detected that the door of the vehicle V is once opened and then closed. Further, a polling signal may be transmitted from the vehicle interior antenna 131E, and it may be determined that the portable device holder has boarded based on the response signal being returned.

When the condition for determining that the portable device holder has boarded the vehicle V is satisfied, an affirmative determination is made in step S309 and the process proceeds to step S310. Further, until the condition for determining that the portable device holder has boarded the vehicle V is satisfied, the determination process of step S309 is sequentially performed. However, if a condition for determining that the portable device holder has boarded is not satisfied even after a certain period of time has elapsed, exception processing such as returning to step S301 is executed.

In step S310, the transmission processing unit F1 transmits a vehicle interior notification signal for notifying that the vehicular portable device 200 is present in the vehicle interior from the vehicle interior antenna 131E, and proceeds to step S310.

In step S311, the transmission processing unit F1 transmits a report instruction signal and proceeds to step S312. Note that the report instruction signal is transmitted in step S311 at a timing when a predetermined second sampling time (for example, 1 second) has elapsed since the vehicle interior notification signal was transmitted. The second sampling time as an interval from the transmission of the vehicle interior notification signal to the transmission of the report instruction signal is appropriately designed so that the portable device side control unit 210 can perform the second holder terminal specifying process described later. It ’s fine.

In step S312, the reception processing unit F2 receives the holder information signal returned from the vehicle portable device 200, and proceeds to step S313. In step S313, the occupant information acquisition unit F6 identifies the user as the portable device holder based on the holder information indicated in the holder information signal. Processing after specifying a user as a portable device holder is the same as that in the above-described embodiment.

<Holder information provision processing>
Next, the holder information providing process performed by the portable device control unit 210 will be described using the flowchart shown in FIG. This portable device side control unit 210 may be started when the vehicle communication processing unit G1 receives a polling signal.

It is assumed that there are a plurality of portable terminals 300 (in other words, users) around the vehicle portable device 200 as a premise. As an example, the mobile terminal 300 present around the vehicular mobile device 200 is a mobile terminal 300 of a mobile device holder and a mobile terminal 300 of a user who does not accompany the mobile device holder and is placed in a house. It is assumed that a signal is received from each of the mobile terminals 300 that are connected.

First, in step S401, the vehicle communication processing unit G1 transmits a response signal to the polling signal, and proceeds to step S402. In step S402, the vehicle communication processing unit G1 determines whether or not an authentication signal has been received. When the authentication signal is received, an affirmative determination is made in step S402 and the process proceeds to step S403. On the other hand, if the authentication signal is not received even after a lapse of a certain time after the response signal is transmitted in step S401, a negative determination is made in step S402, and this flow is terminated. In this case, this flow may be started based on receiving the polling signal again.

In step S403, a response signal to the authentication signal received in step S402 is returned, and the process proceeds to step S404. In step S404, the power management unit G2 shifts the short-range communication unit 230 from the low power consumption mode to the active mode. Then, the short-range communication processing unit G3 starts sampling processing based on a request from the holder terminal specifying unit G4, and proceeds to step S405.

Note that the holder terminal identification unit G4 of the present embodiment causes the short-range communication processing unit G3 to start sampling processing with the reception of the authentication signal as a trigger. Thereby, the frequency | count of transmission / reception of the signal between the onboard equipment 100 and the portable device 200 for vehicles can be reduced.

In addition, every time the short-range communication processing unit G3 of the present embodiment performs the scanning process, the mobile terminal 300 calculates the moving average value using the latest N detection results for each mobile terminal 300 as a population, and the latest received signal strength and The data are stored in the RAM 212 in association with each other. Acquisition of received signal strength by scan processing and calculation of a moving average value using the latest received signal strength correspond to sampling processing in the present embodiment.

The moving average value may be calculated as an average value of the latest N detection results (so-called simple moving average). N may be appropriately designed such as 10 or 50. The moving average value may be a value determined by a known method such as a weighted moving average method or an exponential moving average method.

In step S405, the vehicle communication processing unit G1 determines whether or not a report instruction signal has been received. If a report instruction signal has been received, an affirmative determination is made in step S405 and the process proceeds to step S406. Until the report instruction signal is received, the determination in step S405 may be performed sequentially. If a report instruction signal is not received even after a predetermined time has elapsed, this flow may be terminated as an exception process.

In step S406, the holder terminal specifying unit G4 calculates the fluctuation amount of the received signal strength for each portable terminal 300 based on the received signal strength for each portable terminal 300 stored in the RAM 212, and proceeds to step S407. Note that the received signal strength used for the calculation of the fluctuation amount may be the received signal strength for the latest M times. M may be designed as appropriate, for example, 30 or 50. As another aspect, the fluctuation amount may be calculated using a moving average value instead of the received signal strength.

In step S407, the first holder terminal specifying process is performed, and the process proceeds to step S408. This first holding vehicle terminal specifying process will be described separately using the flowchart shown in FIG. The first holder terminal specifying process includes steps S501 to S507 as shown in FIG.

First, in step S501, the smallest value α1 among the fluctuation amounts of the received signal strength for each portable terminal 300 present in the periphery of the own device calculated in step S406 is specified, and the process proceeds to step S502. In step S502, the second smallest value α2 is identified from the fluctuation amount of the received signal strength for each portable terminal 300, and the process proceeds to step S503.

In step S503, a deviation amount β, which is a value obtained by subtracting α1 from α2, is calculated, and the process proceeds to step S504. In step S504, it is determined whether or not the deviation amount β is equal to or greater than a predetermined deviation threshold THb. Does the threshold used here have such a difference in variation that the portable terminal 300 carried by the portable device holder can be distinguished from the portable terminal 300 carried by a user other than the portable device holder? It is a threshold value for determining whether or not.

The amount of fluctuation in the received signal strength of the portable terminal 300 carried by the portable device holder is approximately the same as the amount of fluctuation in the received signal strength of the portable terminal 300 carried by a user other than the portable device holder. If it is, the possibility that the mobile terminal 300 having the smallest fluctuation amount is the holder terminal is reduced.

In the process of determining that the mobile terminal 300 having the smallest fluctuation amount is the holder terminal, there is a possibility that the holder terminal may be erroneously determined by considering that the deviation amount β is equal to or greater than the predetermined deviation threshold THb. Can be reduced. The specific value of the deviation threshold THb may be designed as appropriate.

If the deviation amount β is equal to or greater than the deviation threshold THb, an affirmative determination is made in step S504 and the process proceeds to step S505. On the other hand, if the deviation amount β is less than the deviation threshold THb, a negative determination is made in step S504, and the process proceeds to step S507.

In step S505, it is determined whether or not the minimum value α1 of the fluctuation amount is equal to or less than a predetermined threshold value THa. The determination process in step S505 is also a step for reducing the possibility of erroneous determination of the holder terminal. The mobile terminal 300 having the smallest fluctuation amount is highly likely to be a holder terminal. However, as the amount of change is larger, the possibility that the mobile terminal 300 is truly a holder terminal is reduced. Therefore, when the minimum value α1 of the fluctuation amount is larger than a certain design value, it is preferable not to determine the portable terminal 300 having the smallest fluctuation amount as the holder terminal.

In addition, the case where the fluctuation amount of the received signal strength of the holder terminal is relatively large is, for example, that the vehicle portable device 200 is accommodated in a pocket provided on the right rear side of the pants, and The position of the portable terminal 300 is such that the signal from the portable terminal 300 to the vehicle portable device 200 is attenuated and propagated by the body of the portable device holder, such as when the portable terminal 300 is accommodated in the left chest pocket of the jacket. This is the case. In the case of such a positional relationship, the vehicle portable device 200 mainly receives the reflected wave of the signal transmitted from the holder terminal. Naturally, since the received signal intensity of the reflected wave has a large variation, the amount of fluctuation also becomes relatively large. Hereinafter, a positional relationship in which a signal from the portable terminal 300 to the portable device for vehicle 200 is attenuated and propagated by the body of the portable device holder is referred to as an indirect propagation pattern.

The determination process in step S505 is a determination process introduced based on the above-described idea, and the specific value of the threshold value THa may be appropriately designed by a test or the like. When the minimum value α1 is equal to or less than the threshold value THa, an affirmative determination is made in step S505, and the process proceeds to step S506. On the other hand, when the minimum value α1 is larger than the threshold value THa, a negative determination is made in step S505, and the process proceeds to step S507. Note that the process of step S505 may be omitted.

In step S506, the mobile terminal 300 having the smallest fluctuation amount among the plurality of mobile terminals 300 is determined as the holder terminal, and this flow is finished. In step S507, it is determined that the holder terminal is unknown, and this flow ends. When this flow is finished, the process proceeds to step S408 of the holder information providing process shown in FIG.

In step S408, the vehicle communication processing unit G1 generates a holder information signal indicating the result of the first holder terminal specifying process in step S407, transmits it to the vehicle-mounted device 100, and proceeds to step S409. In step S409, it is determined whether the holder terminal can be specified as a result of the first holder terminal specifying process in step S407. As a result of the first holder terminal specifying process, if the holder terminal can be specified, an affirmative determination is made in step S409 and this flow ends. On the other hand, as a result of the first holder terminal specifying process, if the holder terminal cannot be specified, a negative determination is made in step S409 and the process proceeds to step S410.

In step S410, the vehicle communication processing unit G1 determines whether or not a vehicle interior notification signal has been received. When the vehicle interior notification signal is received, an affirmative determination is made in step S410 and the process proceeds to step S411. Until the vehicle interior notification signal is received, the determination in step S410 may be performed sequentially. If the vehicle interior notification signal is not received even after a lapse of a certain time after moving to step S410, this flow may be terminated.

When receiving the vehicle interior notification signal, the portable device-side control unit 210 determines that the vehicle portable device 200 is present in the vehicle interior, and when not receiving the vehicle interior notification signal, the vehicle portable device 200 is It is determined that the vehicle is outside the passenger compartment. It is assumed that the determination result that the vehicle is present in the vehicle interior is held for a certain time after the vehicle interior notification signal is received.

Note that, in the present modification 10, as an example, the portable device-side control unit 210 identifies (in other words, determines whether or not the portable device 200 for a vehicle exists in the vehicle interior based on whether or not a vehicle interior notification signal is received. However, the present invention is not limited to this. As exemplified in the modification 11, the identification may be performed by other methods.

In step S411, the storage destination of the data obtained as a result of the sampling process is changed to a storage area that can be distinguished from the data collected so far, and the process proceeds to step S411. Note that this storage location change may be realized logically. For example, the storage location change is logically realized by adding a label indicating that the data to be stored is data acquired in the passenger compartment. May be.

For convenience, in the storage area provided in the RAM 212, an area storing data collected until the vehicle interior notification signal is received is shown as an outside vehicle collection data storage unit M1 in FIG. Further, an area in which data collected after reception of the vehicle interior notification signal is stored is defined as a vehicle interior collection data storage unit M2. The collected data refers to the terminal ID, received signal strength, moving average value, and the like for each portable terminal 300.

The data collected until the vehicle interior notification signal is received corresponds to the vehicle exterior reception intensity information, and the data collected after the vehicle interior notification signal is received corresponds to the vehicle interior reception intensity information. The vehicle interior collection data storage unit M1 corresponds to the vehicle exterior reception intensity storage unit, and the vehicle interior collection data storage unit M2 corresponds to the vehicle interior reception intensity storage unit.

In step S412, the vehicle communication processing unit G1 determines whether or not a report instruction signal has been received. If a report instruction signal has been received, an affirmative determination is made in step S412 and the process proceeds to step S413. Until the report instruction signal is received, the determination in step S412 may be performed sequentially. If the report instruction signal is not received even after a lapse of a certain time after moving to step S412, this flow may be terminated.

In step S413, the holder terminal specifying unit G4 performs the second holder terminal specifying process, and proceeds to step S414. This second holding vehicle terminal specifying process will be described separately using the flowchart shown in FIG. The second holder terminal specifying process includes steps S601 to S604 as shown in FIG.

First, in step S601, the outside representative value for each portable terminal 300 is specified, and the process proceeds to step S602. The vehicle exterior representative value here is a value that representatively represents the received signal strength when the vehicular portable device 200 exists outside the vehicle compartment, and here, as an example, the movement at the time when step S406 is executed. Average value.

It should be noted that the value adopted as the representative value outside the vehicle compartment is not limited to this as long as it is appropriately designed. For example, the moving average value received before a certain time (for example, 3 seconds) for receiving the vehicle interior notification signal may be used. Moreover, it is good also considering the moving average value in the past fixed time from the time of receiving a vehicle interior notification signal as an average value and median value which are decided as a population. Furthermore, the received signal strength acquired at a predetermined time point when the vehicular portable device 200 exists outside the vehicle compartment may be used as the representative value outside the vehicle compartment. The vehicle interior representative value may be determined using the data stored in the vehicle exterior collection data storage unit M1. The vehicle exterior representative value is determined for each portable terminal 300.

In step S602, the vehicle interior representative value for each portable terminal 300 is specified, and the process proceeds to step S603. The vehicle interior representative value here is a value representatively representing the received signal strength when the portable device for vehicle 200 is present in the vehicle interior. Here, as an example, the report instruction signal in step S412 is used. The moving average value at the time of reception is used. Of course, the value adopted as the vehicle interior representative value may be appropriately designed in the same manner as the vehicle interior representative value. For example, an average value or a median value determined by a moving average value acquired within a certain time as a population may be used.

In step S603, the vehicle interior / exterior change amount γ is calculated for each portable terminal 300, and the process proceeds to step S604. The vehicle interior / exterior change amount for a certain mobile terminal 300 here is a value obtained by subtracting the vehicle interior representative value from the vehicle interior representative value of the mobile terminal 300. When the vehicle interior representative value is larger than the vehicle interior representative value, the vehicle interior / exterior change amount γ is a positive value. In other words, in other words, the mobile terminal 300 in which the vehicle interior / outside change amount γ is positive is the mobile terminal 300 in which the received signal strength is greater when the vehicular portable device 200 is present in the vehicle interior.

In step S604, the mobile terminal 300 in which the vehicle interior / exterior change amount γ is positive is determined as the holder terminal. In addition, when there are a plurality of mobile terminals 300 in which the vehicle interior / exterior change amount γ is positive, the mobile terminal 300 having the largest vehicle interior / exterior change amount γ is determined as the holder terminal.

Thus, the received signal strength is higher when the mobile terminal 300 in which the vehicle interior / outside change amount γ is positive, in other words, when the vehicle portable device 200 is in the vehicle interior than in the vehicle interior. The reason for adopting the portable terminal 300 as the holder terminal is as follows.

First, the case where the second holder terminal specifying process is performed is a case where the holder terminal cannot be specified in the first holder terminal specifying process. When the holder terminal cannot be specified in the first holder terminal specifying process, the difference between the mobile terminal equivalent to the holder terminal and the received signal strength of the other mobile terminal 300 is greater than the deviation threshold THb. This is the case when there is no change or the fluctuation amount of any portable terminal 300 is equal to or greater than a predetermined threshold value THa.

The case where the holder terminal cannot be specified by the first holder terminal specifying process is a case where the positional relationship between the mobile terminal 300 and the vehicle mobile device 200 by the mobile device holder is the indirect propagation pattern described above. is there. In such a case, the received signal intensity of the signal from the portable terminal 300 that is the holder terminal detected by the vehicular portable device 200 is not a direct wave but a reflected wave received signal that is reflected by another object. It is likely that it is strong.

In addition, when the positional relationship between the mobile terminal 300 and the vehicle portable device 200 is an indirect propagation pattern and the vehicle portable device 200 exists outside the passenger compartment, The received signal strength is relatively low. However, since the vehicle interior is a narrow space surrounded by the vehicle body, when the portable device holder is in the vehicle interior, it is easier to receive reflected waves, and the received signal strength tends to increase compared to when the vehicle is outside the vehicle interior. is there. On the other hand, the received signal strength of the signal from the mobile terminal 300 arranged in the house is reduced by the effect of the vehicle body.

Therefore, by identifying the holder terminal by the above method, when the signal from the mobile terminal 300 of the user who does not accompany the current trip is captured, the mobile terminal 300 of the user who does not accompany the trip is regarded as the holder terminal. The risk of erroneous determination can be reduced.

[Modification 11]
In the above-described modification 10, the vehicle-mounted device 100 transmits a vehicle interior notification signal from the vehicle interior antenna 131E, and the vehicle portable device 200 receives the vehicle interior notification signal. Although it was set as the aspect which identifies whether the portable device 200 for vehicles exists in a vehicle interior or a vehicle interior, it is not restricted to this.

For example, the signal transmitted from the LF antenna 131 may include identification information indicating whether the signal is transmitted outside the passenger compartment or the signal transmitted toward the passenger compartment. . That is, the LF antenna 131 (for example, the DF-side antenna 131A) having the transmission area outside the vehicle interior transmits a signal including identification information indicating that the signal is transmitted toward the outside of the vehicle interior. Further, a signal including identification information indicating that the signal is being transmitted toward the vehicle interior is transmitted from the LF antenna 131 (for example, the vehicle interior antenna 131E) having the vehicle interior as a transmission area.

According to such an aspect, the portable device-side control unit 210 refers to the identification information included in the received signal to determine whether the vehicle portable device 200 exists outside the passenger compartment of the vehicle V or not. It can be identified whether it exists.

[Modification 12]
In the above-mentioned modification 10, when the holder terminal could not be specified by the first holder terminal specifying process, the mode of specifying the holder terminal by comparing the vehicle interior / exterior change amount γ is illustrated, but this is not limitative. Absent. As the holder information providing process, the portable device-side control unit 210 may specify the holder terminal only by comparing the vehicle interior / exterior change amount γ without performing the first holder terminal specifying process. In that case, the processing procedure of the holder information acquisition processing may be changed as appropriate, and for example, the transmission of the report instruction signal in step S306 may be omitted.

[Modification 13]
Moreover, in the modified example 10, the case where the holder terminal is specified by comparing the vehicle interior / exterior change amount γ is not limited to the case where the holder terminal cannot be specified by the first holder terminal specifying process. For example, when the representative value outside the vehicle interior of any portable terminal 300 is equal to or less than the reception intensity threshold described in the embodiment, the holder terminal may be specified by comparing the change amount γ outside the vehicle interior.

In this case, the outside representative value for each mobile terminal 300 may be calculated when the vehicular portable device 200 exists outside the passenger compartment and a report instruction signal is received, for example. If the outside representative value of any portable terminal 300 is equal to or less than the reception intensity threshold value, the holder terminal is unknown and the processing from S408 onward may be performed.

[Modification 14]
The content of the 1st holder terminal specific process in the modification 10 is good also as the following content. First, the holder terminal specifying unit G4 calculates a representative value outside the vehicle compartment for each portable terminal 300, and determines that the portable terminal 300 for which the representative value outside the vehicle compartment for each portable terminal 300 is a predetermined direct possession threshold is the holder terminal. Extracted as a candidate. Then, the fluctuation amount is calculated for each extracted mobile terminal 300, and the mobile terminal 300 having the smallest fluctuation amount is adopted as the holder terminal.

Normally, when the positional relationship between the portable terminal 300 of the portable device holder and the portable device for vehicle 200 is not an indirect propagation pattern, the portable device for vehicle 200 can be expected to directly receive a signal from the holder terminal. For this reason, there is a high possibility that the representative value outside the passenger compartment also becomes a sufficiently large value or more. The direct possession threshold described above is an assumed value of the received signal strength observed when the vehicle portable device 200 directly receives a signal from the holder terminal.

That is, the direct possession threshold functions as a threshold for determining whether the possession form of the portable device holder is the possession form in which the portable device for vehicle 200 directly receives a signal from the holder terminal. To do. Even with the configuration of the modified example 10, it is possible to reduce the possibility that the mobile terminal 300 that is not the holder terminal is erroneously determined as the holder terminal due to the possession form of the holder terminal.

[Modification 15]
Moreover, the method for the vehicle portable device 200 to identify the user as the portable device holder is not limited to the method exemplified in the embodiment and the modified example 10 (hereinafter, embodiment and the like). In the above-described embodiments and the like, the fluctuation amount of the received signal strength (hereinafter, RSSI: Received Signal Strength Indication) of the portable terminal 300 carried by the portable device holder is the same as that of the passenger's portable terminal 300 (hereinafter referred to as the passenger terminal). The holder terminal is specified on the assumption that the amount of change is smaller than the RSSI fluctuation amount.

However, as a result of various tests, the inventors have determined that the RSSI of the holder terminal depends on the combination of the portable device 200 and the portable terminal 300 held by the portable device holder (in other words, depending on their positional relationship). It has been found that there is a case where the amount of fluctuation of the vehicle is larger than the RSSI fluctuation amount of the passenger terminal.

For example, the portable device holder possesses the vehicle portable device 200 in such a mode that the acceleration linked to the movement of the user's upper limb (that is, the hand) acts on the vehicle portable device 200 (hereinafter referred to as the upper limb interlocked possession form). And when the portable terminal 300 is accommodated in the pocket of clothes, those positional relationships change with hand-shaking accompanying walking, and the RSSI fluctuation amount tends to increase. The same applies to the case where the portable device holder holds the portable terminal 300 in the upper limb interlocking possession form and the vehicle portable device 200 is accommodated in a pocket of clothes.

In addition, the case where the carrying form of the vehicle portable device 200 corresponds to the upper limb-linked carrying form means that the portable device holder is directly in the hand of the portable device 200 or is held in the hand of the portable device holder. This is a case where the portable device for vehicle 200 is accommodated in an accommodation (for example, a handbag). The same applies to the case where the portable terminal 300 is in the upper limb-linked state.

In addition, when the portable device holder stores the portable terminal (that is, the holder terminal) 300 in the pocket of the pants, the position (including the posture) of the holder terminal in the pocket when walking and when stopped. ) May change. The same applies to the mobile device 200 for vehicles. Therefore, when at least one of the mobile terminal 300 and the vehicle portable device 200 is accommodated in the pocket of the trousers, the positional relationship between the mobile terminal 300 and the mobile device 200 can be changed between walking and stopping.

As described above, if the positional relationship between the holder terminal and the vehicle portable device 200 changes, the signal propagation path from the holder terminal to the vehicle portable device 200 changes, and the RSSI also changes. That is, the RSSI during walking tends to change at a level different from the RSSI during stoppage.

Therefore, when the RSSI sampled in both the walking state and the stopped state is included in the population for calculating the RSSI variation amount, the RSSI variation amount becomes relatively large. As a result, the RSSI fluctuation amount of the holder terminal may be larger than the RSSI fluctuation amount of the passenger terminal. The RSSI fluctuation amount of the holder terminal refers to the RSSI fluctuation amount of the signal from the holder terminal in the vehicle portable device 200, and the RSSI fluctuation amount of the passenger terminal refers to the passenger in the vehicle portable device 200. This refers to the RSSI fluctuation amount of the signal from the terminal.

The vehicular portable device 200 disclosed below as a modified example 15 incorporates a determination algorithm corresponding to the above-described case. The above-described embodiment and various modifications can be applied to the modification 15 as long as no contradiction occurs.

21, the LF receiver 222 in the modification 15 includes an LF intensity detector 2221 that detects the intensity (that is, RSSI) of the signal received by the LF antenna 221. The LF intensity detection unit 2221 may be realized using a known circuit configuration. Data indicating the RSSI detected by the LF intensity detection unit 2221 is sequentially provided to the portable device control unit 210. The RSSI detected by the LF intensity detection unit 2221 is the RSSI of the LF signal. Therefore, hereinafter, the RSSI detected by the LF intensity detection unit 2221 is also referred to as LF_RSSI for convenience. The LF intensity detector corresponds to the vehicle signal intensity detector.

Further, when acquiring the data indicating the current LF_RSSI from the LF intensity detection unit 2221, the portable device-side control unit 210 of the modification 15 gives a time stamp indicating the detection time to the data and stores the data in the RAM 212 for a certain period of time.

As described above, the RSSI detection result for each mobile terminal 300 obtained by the sampling process is also stored in the RAM 212. The RSSI for each portable terminal 300 may be sorted and stored in the RAM 212 in chronological order. Hereinafter, data in which RSSIs of signals from a certain mobile terminal 300 are arranged in time series will be referred to as RSSI time series data for the mobile terminal 300. The RSSI time-series data for a certain mobile terminal 300 functions as waveform data indicating the change over time in the RSSI of the mobile terminal 300.

Furthermore, as shown in FIG. 22, the portable device control unit 210 in the modification 15 includes a frequency characteristic analysis unit G7 and a walking determination unit G8. The frequency characteristic analysis unit G7 and the walking determination unit G8 may be realized by the CPU executing the mobile terminal program, or may be realized by using a hardware member such as an IC.

The frequency characteristic analysis unit G7 uses FFT (Fast Fourier Transform) to analyze the RSSI frequency characteristics for each portable terminal 300 from the RSSI time-series data for each portable terminal 300 stored in the RAM 212 (hereinafter, referred to as "Fast Fourier Transform"). Frequency characteristic analysis processing). In other words, analyzing the frequency characteristic corresponds to specifying the periodicity of the RSSI time variation pattern indicated by the RSSI time-series data.

Specifically, as shown in FIG. 23, the frequency characteristic analysis unit G7 divides the RSSI within the latest fixed time indicated in the RSSI time-series data for a certain mobile terminal 300 into first to third data sections. The FFT process is executed for each data section. The FFT process is a process for executing a well-known FFT on a target signal sequence, and a specific method thereof is well-known, and a description thereof will be omitted here. Note that FIG. 23 shows a case where the portable device holder is carrying the vehicular portable device 200 in an upper limb-linked carrying configuration and is walking in a state where the portable terminal 300 is accommodated in the pocket of the pants. The RSSI waveform is schematically represented.

In the FFT processing in this modification, it is only necessary to specify the strength (in other words, amplitude) of the frequency component designed in advance. Here, as an example, it is assumed that the frequency characteristic analysis unit G7 specifies intensities at eight frequencies fq1, fq2,. The frequencies fq1 to fq8 to be analyzed may be appropriately designed based on the average value or median value of the frequencies at which a person shakes his / her hand when walking. In other words, the frequencies fq1, fq2,..., Fq8 may be determined so as to correspond to the frequency of hand gesture motion during walking of various persons (hereinafter, swing frequency). The range that the swing frequency can take (hereinafter referred to as the swing frequency region) may be determined by a test or the like.

Here, as an example, fq1 = 0.3 Hz, fq2 = 0.6 Hz, fq3 = 0.9 Hz, fq4 = 1.2 Hz, fq5 = 1.5 Hz, fq6 = 1.8 Hz, fq7 = 2.1 Hz, fq8 = 2 Suppose that it is set to 4 Hz.

The inventors measured the swing frequency of persons of various physiques and ages by a test, and based on the test result, the average value of the swing frequency was 0.8 Hz, and the swing frequency during walking was 0. 0. The knowledge that it is distributed from 6 Hz to 1.3 Hz was obtained. Therefore, in this specification, based on such knowledge, the frequencies fq2, fq3, and fq4 are handled as frequencies belonging to the swing frequency region, and the other frequencies fq1, fq5, fq6, fq7, and fq8 are frequencies representing noise components. handle.

In addition, although the aspect which extracts eight specific frequency components is disclosed here, it is not restricted to this. The number of frequencies to be analyzed may be 4, 6, or 10 or more. It suffices if the frequency belonging to the swing frequency region is included in the frequency to be analyzed.

FIG. 24 shows the analysis result of the frequency characteristic analysis unit G7 for the first data section of the RSSI time series data shown in FIG. If the portable device holder is carrying the vehicular portable device 200 in the upper limb interlocking possession form and walking with the portable terminal 300 being accommodated in the pocket of the pants, FIG. As shown, a peak appears in any of fq2, fq3, and fq4 belonging to the swing frequency region.

The frequency characteristic analysis unit G7 performs FFT processing on each of the three data sections, and generates data indicating frequency distribution (hereinafter, frequency characteristic data) as shown in FIG. Note that the length of one data section may be appropriately designed so as to obtain a desired frequency resolution. In this modification, the three data sections are set so as not to overlap each other, but the present invention is not limited to this. Each data section may be set such that the first data section and the second data section, and the second data section and the third data section overlap. Of course, as a result, the first data section and the third data section may overlap. Furthermore, in this modification, as an example, three data sections are set. However, the number of data sections set may be one, two, or four or more.

The walking determination unit G8 determines whether or not the portable device holder is walking based on LF_RSSI provided from the LF intensity detection unit 2221. Specifically, as shown in FIG. 25, the walking determination unit G8 determines that the portable device holder is walking when the LF_RSSI changes, and carries the portable device when the LF_RSSI does not change. It is determined that the aircraft holder is stopped. This is because, in general, in the LF band radio waves, the distance from the antenna and the attenuation curve of the received intensity are not easily affected by disturbances, so that a change in the position of the portable device holder with respect to the vehicle V appears as a change in LF_RSSI.

Whether or not LF_RSSI has changed is, for example, when the value before a certain time (for example, 100 milliseconds before) is compared with the current value, and there is a difference between the two above a predetermined threshold. , LF_RSSI may be determined to have changed. The threshold value used here may be a fixed value or a value obtained by multiplying a value before a certain time by a predetermined ratio (for example, 0.1).

LF_RSSI used for determining whether or not the user is walking is preferably LF_RSSI in the signal transmitted from the vehicle V. Therefore, as a more preferable aspect, the transmission processing unit F1 in the present modification transmits signals from all the LF antennas 131 for outside the vehicle at a predetermined cycle (for example, every 50 milliseconds) while the vehicle V is parked. Shall be allowed to. Here, the signal periodically transmitted may be a signal including information that can be recognized by the vehicle portable device 200 as a signal transmitted from the vehicle V. And the portable device side control part 210 preserve | saves only LF_RSSI about the signal transmitted from the vehicle V in RAM212.

Hereinafter, for convenience, the process of determining whether or not the portable device holder is walking by the walking determination unit G8 is referred to as a walking determination process. As another aspect, when the acceleration sensor 250 outputs a value equal to or greater than a predetermined threshold, it may be determined that the portable device holder is walking. The walking determination unit G8 corresponds to a position change determination unit.

<Holder terminal identification process>
Next, with reference to the flowcharts shown in FIG. 26 and FIG. 27, a series of processes (hereinafter, a holder terminal specifying process) performed by the portable device-side control unit 210 of the modification 15 to identify a portable device holder. explain. This holder terminal specifying process may be started, for example, when authentication by wireless communication between the vehicle-mounted device 100 and the vehicle portable device 200 is established. Of course, the conditions for starting the process are not limited to this, and may be appropriately designed.

First, in step S701, the short-range communication processing unit G3 starts sampling processing and proceeds to step S702. Thereby, the sequential scanning process is performed. In step S <b> 702, the walking determination unit G <b> 8 starts a walking determination process based on LF_RSSI sequentially provided from the LF intensity detection unit 2221. This gait determination process is subsequently executed successively at predetermined intervals (for example, every 100 milliseconds). It should be noted that periodic execution of the walking determination process may be stopped with the end of this flow.

In step S703, the holder terminal specifying unit G4 specifies the number of mobile terminals 300 existing around the own device based on the result of the scanning process (in other words, the communication status of the short-range communication unit 230). If there is only one mobile terminal 300 in the vicinity of the own device, an affirmative determination is made in step S703 and the process proceeds to step S704. In step S704, the holder terminal specifying unit G4 determines that only one detected mobile terminal 300 is the holder terminal, and ends this flow.

On the other hand, if the number of mobile terminals 300 present around the own device is two or more, a negative determination is made in step S703, and the process proceeds to step S705. Note that if no mobile terminal 300 is detected, this flow may be terminated. In that case, exception processing that should be designed as appropriate, such as performing step S701 again after a certain time, is executed.

In step S705, the holder terminal specifying unit G4 determines whether there is a mobile terminal 300 whose RSSI is equal to or greater than a predetermined determination threshold value P1. When there is a mobile terminal 300 whose RSSI is equal to or greater than the determination threshold value P1, an affirmative determination is made in step S705, and the process proceeds to step S704, where the mobile terminal 300 is determined as a holder terminal.

The determination threshold value P1 introduced here is a threshold value for determining the holder terminal from the RSSI, and is set to a sufficiently large value. For example, the threshold for determination may be a minimum value or an average value of RSSI that can be observed when the vehicular portable device 200 and the mobile terminal 300 exist within a line-of-sight of 0.5 m.

On the other hand, when there is no portable terminal 300 whose RSSI is equal to or greater than the determination threshold value P1, a negative determination is made in step S705, and the process proceeds to step S706. In step S706, the holder terminal specifying unit G4 determines whether there is a mobile terminal 300 whose RSSI is less than the predetermined exclusion threshold P2.

The exclusion threshold P2 introduced here is a threshold set for the RSSI in order to identify the portable terminal 300 held by a person other than the portable device holder (that is, a passenger). In other words, it is a threshold value for excluding the mobile terminal 300 that is unlikely to be a holder terminal from among the mobile terminals 300 present around the vehicular portable device 200.

When the RSSI is sufficiently large, the possibility that the portable terminal 300 is a holder terminal is high, while the smaller the RSSI is, the smaller the possibility that the portable terminal 300 is a holder terminal is. Therefore, the mobile terminal 300 whose RSSI is less than a predetermined value can be regarded as a mobile terminal held by the passenger (hereinafter referred to as a passenger terminal). A specific value of the exclusion threshold value P2 may be designed as appropriate. The exclusion threshold value P2 is preferably set to a value smaller than the RSSI observed when the positional relationship between the mobile terminal 300 and the vehicle mobile device 200 is an indirect propagation pattern.

If there is a mobile terminal 300 whose RSSI is less than the predetermined exclusion threshold P2, an affirmative determination is made in step S706 and the process proceeds to step S707. On the other hand, when there is no portable terminal 300 whose RSSI is less than the exclusion threshold P2, a negative determination is made in step S706, and the process proceeds to step S709.

In step S708, the portable terminal 300 is determined as a passenger terminal, and the process proceeds to step S708. In step S708, as a result of determining the passenger terminal, it is determined whether or not only one portable terminal 300 remains. If there is only one remaining mobile terminal 300, an affirmative determination is made in step S708 and the process proceeds to step S704, where the remaining mobile terminal 300 is determined as the holder terminal, and this flow ends. On the other hand, if there are two or more remaining mobile terminals 300, a negative determination is made in step S708 and the process proceeds to step S709.

In step S709, the frequency characteristic analysis unit G7 generates frequency characteristic data for each portable terminal 300 based on the RSSI time-series data for each portable terminal 300 stored in the RAM 212, and proceeds to step S710. The frequency characteristic data is generated for each data section for one mobile terminal 300. That is, the FFT process is performed three times for one mobile terminal 300, and as a result, three frequency characteristic data are generated.

FIG. 28 conceptually shows an example of the execution result of step S709 when two mobile terminals 300, 300A and 300B, exist around the mobile device 200 for the vehicle. The portable terminal 300A is a portable terminal 300 carried by the user A, and the portable terminal 300B is a portable terminal 300B carried by the user B.

As shown in FIG. 28, the frequency characteristic analysis unit G7 sets the first, second, and third data sections for the RSSI time-series data of the two mobile terminals 300, and analyzes the frequency characteristics in each data section. . The (A) stage in FIG. 28 represents RSSI time-series data, and (B1) to (B3) represent frequency characteristics in each data section.

In step S710, the holder terminal specifying unit G4 determines whether or not there is a mobile terminal 300 that satisfies a predetermined holder terminal condition among the mobile terminals 300 that exist in the vicinity of the own device. The holder terminal condition here is a condition for determining the holder terminal from the periodicity of the RSSI temporal change pattern. In this modification, as an example, a peak exists in any of the frequencies fq2, fq3, and fq4 corresponding to the holder swing frequency in any of the first, second, and third data sections, and the peak height is high. It is adopted as the holder terminal condition that frequency characteristic data having a length equal to or greater than a predetermined peak detection threshold is obtained.

That is, in any one of the first, second, and third data sections, there is a peak at any of the frequencies fq2, fq3, and fq4 corresponding to the holder swing frequency, and the peak height is the peak detection threshold value. If there is a mobile terminal 300 from which the analysis result is obtained as described above, the process proceeds to step S704, and the mobile terminal 300 is determined as a holder terminal. The specific value of the peak detection threshold may be determined by a test or the like. The portable terminal 300 that satisfies the holder terminal condition corresponds to the portable terminal 300 in which RSSI vibrates at a cycle corresponding to a hand gesture operation during walking.

As a result of the periodicity evaluation process, when there are a plurality of portable terminals 300 that satisfy the above-mentioned holder terminal condition, the results of the analysis process three times corresponding to the first, second, and third data sections The portable terminal 300 having the highest number of times that the above-mentioned holder terminal condition is satisfied is determined as the holder terminal. For example, as shown in FIG. 28, the portable terminal 300A satisfies the holder terminal condition in two data sections of the first and second data sections, and the portable terminal 300B satisfies the holder terminal condition only in the second data section. If satisfied, the portable terminal 300A is determined as the holder terminal.

If the result of step S710 is that the holder terminal cannot be specified, the process proceeds to step S711. In step S711, the holder terminal identification unit G4 extracts the RSSI acquired during the period determined by the walking determination unit G8 to be walking from the RSSI time-series data of each mobile terminal 300 stored in the RAM 212. Then, the process proceeds to step S712.

In step S712, the holder terminal specifying unit G4 calculates the RSSI fluctuation amount of each mobile terminal 300 using the RSSI for each mobile terminal 300 extracted in step S712, and proceeds to step S713. That is, only RSSI acquired while the portable device holder is determined to be walking by the walking determination unit G8 among the RSSIs for each portable terminal 300 acquired sequentially by the sampling process. Is used to calculate the RSSI fluctuation amount for each portable terminal 300.

In step S713, the holder terminal specifying unit G4 determines the portable terminal 300 having the smallest RSSI fluctuation amount as the holder terminal, and proceeds to step S714. In step S714, the remaining portable terminal 300 is determined as a passenger terminal, and this flow ends. Information relating to the occupant (for example, the holder terminal information) identified by the above process may be transmitted to the vehicle V at a predetermined timing.

In this modification, the RSSI fluctuation amount of the mobile terminal 300 is calculated using the RSSI collected while walking without using the RSSI collected while the portable device holder is stopped. Although the aspect which calculates is illustrated, it is not restricted to this. Conversely, the RSSI fluctuation amount may be calculated using the RSSI collected while the portable device holder is walking, without using the RSSI collected while the portable device holder is walking.

However, the state in which the positional relationship with the other portable terminal 300 is likely to change is a state in which the portable device holder is walking. Therefore, it is better to calculate using RSSI collected while walking, as in the above-described aspect, than to calculate the RSSI fluctuation amount using RSSI collected while stopping. The holder terminal can be identified with higher accuracy.

Incidentally, the LF antenna 131 for transmitting a signal to the outside of the passenger compartment is often mounted in the door handle. When the LF antenna 131 is mounted in the door handle, a line connecting points where the signal transmitted from the LF antenna 131 is received with the same intensity by the vehicle portable device 200 (that is, a contour line of reception intensity) is The LF antenna 131 has a substantially circular shape centered on the installation position.

In such a configuration, when the portable device holder walks around the vehicle so as to follow a point where LF_RSSI is constant (that is, in an arc shape centered on the door handle), the LF_RSSI changes more than a predetermined threshold value. Absent. Therefore, even though the portable device holder is actually walking, the walking determination unit G8 may determine that the portable device holder is stopped. As a result, RSSI collected while the determination is maintained may be excluded from the population for calculating the RSSI fluctuation amount in step S712.

On the other hand, in order for the user to get into the vehicle, a series of operations such as grasping the door handle and opening the door is necessary, so that the portable device holder always approaches the door handle. As a result, since a change equal to or greater than a predetermined threshold occurs in LF_RSSI, the determination result by the walking determination unit G8 shifts to walking, and RSSI for calculating the RSSI fluctuation amount is collected. That is, even when the portable device holder moves in an arc shape centered on the door handle, the vehicular portable device 200 operates without problems as described above, and the above effects can be obtained.

<Summary of Modification 15>
In the above configuration, the periodicity of the RSSI change for each mobile terminal 300 is specified using FFT, and the mobile terminal 300 having the periodicity corresponding to the swing frequency is determined as the holder terminal. According to such a configuration, the portable device holder possesses one of the vehicle portable device 200 and the portable terminal 300 with the upper limb-linked carrying device, and the other is accommodated in the pocket of the clothes. In this case, it is possible to improve the identification accuracy of the holder terminal.

Also, by calculating the RSSI fluctuation amount using only RSSI during walking, it is possible to suppress variations in RSSI between walking and stopping. As a result, the holder terminal can be identified with higher accuracy.

[Modification 16]
Although the method for specifying the holder terminal or the like using the RSSI of the signal received from the mobile terminal 300 by the vehicular portable device 200 has been disclosed above, the method for specifying the holder terminal or the like is not limited thereto. For example, a holder terminal or the like can be identified using information on acceleration acting on each of the vehicle portable device 200 and the portable terminal 300. Hereinafter, an embodiment based on such a concept will be disclosed as Modification 16.

Each mobile terminal 300 in Modification 16 includes an acceleration sensor 330 as shown in FIG. The acceleration sensor 330 is a sensor that sequentially detects acceleration acting on itself. Here, as an example, the acceleration sensor 330 includes three detection axes that are orthogonal to each other, and is a sensor that measures acceleration acting in each axial direction (that is, a three-axis acceleration sensor). Of course, as another aspect, the acceleration sensor 330 may be a two-axis acceleration sensor, a one-axis acceleration sensor, or the like.

The detection result of the acceleration sensor 330 is sequentially provided to the terminal side control unit 310. The interval at which the acceleration sensor 330 outputs the detection result (hereinafter, sampling interval) is, for example, every 100 milliseconds. Of course, the sampling interval may be 50 milliseconds or 200 milliseconds. The acceleration sensor 330 outputs data indicated by accelerations (Ax, Ay, Az) for each of the three axial directions as a detection result for one time.

When the terminal-side control unit 310 acquires data indicating the detection result of the acceleration sensor 330 (hereinafter, acceleration data), the terminal-side control unit 310 adds a time stamp indicating the detection time to the acceleration data and stores the data in the RAM 312 for a certain period of time. The acceleration data acquired sequentially may be sorted in chronological order and stored in the RAM 312. The acceleration data may be deleted sequentially after being stored in the RAM 312 for a certain time.

Hereinafter, for the sake of convenience, a set of data obtained by arranging the acceleration data for the latest fixed time acting on the mobile terminal 300 in time series will be referred to as acceleration history data. The acceleration history data functions as data indicating a change with time of acceleration acting on the mobile terminal 300. The length of the predetermined time may be appropriately designed, and may be several seconds, for example. The number of acceleration data constituting the acceleration history data corresponds to a value obtained by dividing the above-mentioned predetermined time by the sampling interval. The acceleration history data functions as data representing the history of the behavior of the user carrying the mobile terminal 300 within a certain time from the present time.

Then, each mobile terminal 300 transmits a communication packet (hereinafter referred to as a behavior notification packet) including acceleration history data stored in the RAM 312 to the vehicle portable device 200 by short-range communication. Of course, the behavior notification packet includes information (for example, terminal ID) indicating the transmission source. The terminal-side control unit 310 may be configured to periodically transmit the behavior notification packet, or may be configured to execute in response to a request from the vehicle portable device 200. The acceleration history data accommodated in the behavior notification packet corresponds to behavior notification data, particularly state quantity history data.

Further, when the vibration information acquisition unit G6 of the vehicular portable device 200 according to the modification 16 acquires the data indicating the acceleration acting on the vehicular portable device 200 from the acceleration sensor 250, the time stamp indicating the detection time in the data. And stored in the RAM 212 for a certain period of time. Handling of acceleration data in the RAM 212 may be the same as that of the terminal-side control unit 310. That is, the acceleration history data having the acceleration acting on the own device as a component is stored in the RAM 212. The vibration information acquisition unit G6 corresponds to a state quantity acquisition unit, particularly an acceleration information acquisition unit.

Also, the short-range communication processing unit G3 cooperates with the short-range communication unit 230 to receive the behavior notification packet transmitted from the mobile terminal 300 existing around the own device. Then, the terminal ID and the acceleration history data indicated in the received behavior notification packet are stored in the RAM 212 in association with each other.

The holder terminal specifying unit G4 in the present modification uses acceleration history data (hereinafter referred to as own device acceleration data) regarding the own device stored in the RAM 212 and acceleration history data of the mobile terminal 300 existing around the own device. To identify the holder terminal. Hereinafter, for the sake of convenience, the operation mode of the holder terminal specifying unit G4 in Modification 16 will be described by taking as an example the case where the user A is a portable device holder and only the user B exists around the user A. To do. As described above, it is assumed that each of the users A and B has their own mobile terminals 300A and B. When not distinguishing the portable terminal 300 and the portable device 200 for vehicles, it describes only as a communication terminal.

As one operation mode, the holder terminal specifying unit G4 in this modification specifies the walking rhythm of the portable device holder from the own device acceleration data and carries each portable terminal 300 from the acceleration history data of each portable terminal 300. The walking rhythm of the person who is doing is specified. And the portable terminal 300 which becomes the walking rhythm with the highest coincidence with the walking rhythm of the portable device holder is determined as the holder terminal. The walking rhythm corresponds to the index state quantity.

As the walking rhythm of the portable device holder, for example, data indicating a change with time of the triaxial synthetic acceleration is generated based on the own device acceleration data, and an average value of the peak generation intervals of the triaxial synthetic acceleration is adopted as the walking rhythm. That's fine. The triaxial combined acceleration is a value obtained by raising the sum of squares of detection values for each axial direction to the power of 0.5 (that is, taking the square root). As another aspect, the gravity action direction (in other words, the vertical direction) may be specified from the detection value for each axial direction, and the generation interval of acceleration peaks acting in the vertical direction may be adopted as the walking rhythm.

The vertical direction may be a direction in which a combined vector (hereinafter referred to as a combined acceleration vector) of acceleration for each axial direction when the portable device 200 for the vehicle is stationary is directed. The stationary time point may be, for example, a time point at which the triaxial combined acceleration coincides with the gravitational acceleration (that is, 9.8 [m / sec ^ 2]). That is, the time point at which only the gravitational acceleration is applied to the vehicular portable device 200 may be regarded as the stationary time point. As another aspect, the vertical direction may be specified using the detection result of the gyro sensor or the geomagnetic sensor.

In the above, the method for specifying the walking rhythm of the portable device holder based on the own device acceleration data has been described, but the walking rhythm of the user carrying each portable terminal 300 may be specified by the same method.

FIG. 30 conceptually shows the identification result of the walking rhythm corresponding to the acceleration history data of each communication terminal. The vertical axis | shaft of the various graphs with which FIG. 30 is provided represents the triaxial synthetic | combination acceleration, and the horizontal axis represents time. Tfob, TmA, and TmB represent the average value of peak intervals in each graph (hereinafter, average peak interval). That is, the average peak interval Tfob represents the walking rhythm of the portable device holder, and the average peak interval TmA represents the walking rhythm of the person holding the portable terminal 300A (that is, the user A). The average peak interval TmB represents the walking rhythm of the person holding the mobile terminal 300B (that is, the user B).

30. When a result as shown in FIG. 30 is obtained, the holder terminal specifying unit G4 determines the portable terminal 300A as the holder terminal. This is because the average peak interval TmA of the portable terminal 300A is closer to the average peak interval Tfob of the portable device for vehicle 200 than the average peak interval TmB of the portable terminal 300B.

In addition, as one operation mode, the holder terminal specifying unit G4 specifies the moving speed of the vehicle portable device 200 from the own device acceleration data, and the moving speed of each portable terminal 300 from the acceleration history data of each portable terminal 300. Is identified. And the portable terminal 300 which becomes the moving speed nearest to the moving speed of the portable device holder is determined as the holder terminal. In addition, the moving speed of the portable device for vehicle 200 corresponds to the walking speed of the portable device holder, and the moving speed of the portable terminal 300 corresponds to the walking speed of the person carrying the portable terminal 300. The moving speed also corresponds to an example of the index state quantity.

The moving speed of the vehicle portable device 200 at a certain time point (hereinafter referred to as a target time point) can be calculated using acceleration data at a plurality of time points detected within one second from the target time point. For example, the magnitude of acceleration acting in the horizontal direction at each detection time (that is, the horizontal direction component) is specified based on acceleration data detected in one second from the target time. Then, a value obtained by adding a value obtained by multiplying the horizontal method component at each detection time by the sampling interval is adopted as the moving speed at the target time. That is, the acceleration acting in the horizontal direction may be obtained by time integration. The horizontal direction component corresponds to a component obtained by projecting the three-axis composite acceleration vector onto a plane orthogonal to the vertical direction (that is, a horizontal plane).

Further, as a more preferable aspect in the present modification, the same calculation processing is performed with each of acquisition time points (in other words, detection time points) of a plurality of acceleration data constituting the acceleration history data as target time points. Thereby, the holder terminal specifying unit G4 generates data (hereinafter, speed history data) indicating the moving speed at each detection time point.

Although the method for calculating the moving speed of the portable device for vehicle 200 has been described above, the moving speed at each detection time of the portable terminal 300 can also be calculated by the same method as the method for obtaining the moving speed of the portable device for vehicle 200. Good. Further, the speed history data of the mobile terminal 300 is also generated from the acceleration history data by the same method.

By the way, as shown in FIG. 31, the speed history data of each communication terminal functions as data indicating a temporal change pattern of the moving speed (hereinafter, speed change pattern). In addition, the continuous line in FIG. 31 represents the moving speed of the portable device 200 for vehicles, and the dashed-dotted line represents the moving speed of 300 A of portable terminals. The two-dot chain line represents the moving speed of the mobile terminal 300B.

The holder terminal specifying unit G4 in the present modification compares the speed change pattern of each mobile terminal 300 existing around the own device with the speed change pattern of the vehicular portable device 200 in order to specify the holder terminal. . And among the some portable terminals 300, the portable terminal 300 which becomes a speed change pattern with the largest coincidence with the speed change pattern of the portable device 200 for vehicles shall be determined as a holder | retainer terminal. The degree of coincidence of the speed change patterns may be calculated using a well-known pattern matching method.

Of course, as another aspect, the holder terminal specifying unit G4 calculates a moving speed determined from the latest detection time as the starting time for each communication terminal, and the moving speed of the mobile device 200 for each mobile terminal 300 is set as the moving speed. You may determine the portable terminal 300 which becomes the nearest moving speed as a holder | retainer terminal.

Furthermore, the holder terminal specifying unit G4 specifies the stride of the portable device holder based on the own device acceleration data as one operation mode. Moreover, based on the acceleration history data of each portable terminal 300, the stride of the person carrying each portable terminal 300 is specified. And the portable terminal 300 possessed by the person of the stride closest to the stride of the portable device holder is determined as the holder terminal. The stride also corresponds to an example of the index state quantity.

The step length of the portable device holder may be specified by, for example, the following method. First, data indicating the transition of the moving speed of the portable device holder (that is, speed history data) is generated by the method described above. Next, the same time as the method for specifying the walking rhythm is used to specify the time at which the transition from one step to the next is made. That is, the time interval for one step is specified. Then, the moving distance for one step (that is, the stride) is calculated by adding the value obtained by multiplying the moving speed at each time point included in the time interval for one step by the sampling interval. Although the procedure for specifying the stride of the portable device holder has been described above, the stride of the person holding the mobile terminal 300 may be specified by the same procedure.

FIG. 32 shows changes over time in the stride of each of the portable device holder, the person holding the mobile terminal 300A (ie, user A), and the person holding the mobile terminal 300B (ie, user B). FIG. The round mark in the figure represents the stride of the portable device holder, and the triangular mark represents the stride of the user A. The rhombus mark represents the step length of the user B. The stride at each time point may be specified by the method described above. The interval between marks on the time axis represents a walking rhythm.

32. When the result as shown in FIG. 32 is obtained, the holder terminal specifying unit G4 determines the portable terminal 300A as the holder terminal. This is because the user A's stride is closer to the portable device holder's stride than the user B's stride. Here, as an example, it is assumed that the stride of a person carrying a certain communication terminal is calculated a plurality of times, and the average value or median value thereof is adopted as the stride of the person. As another aspect, for example, the holder terminal specifying unit G4 may calculate only the latest stride for each carrier of the communication terminal and specify the holder terminal by comparing the latest strides.

In addition, as one operation mode, the holder terminal specifying unit G4 has a time-dependent change pattern (hereinafter referred to as a distance change) of the moving distance per certain time (for example, per second) of the vehicular portable device 200 based on its own acceleration data. Pattern). The holder terminal specifying unit G4 also specifies the distance change pattern of each mobile terminal 300 from the acceleration history data of each mobile terminal 300. Then, the portable terminal 300 that has the closest movement speed to the distance change pattern of the portable device holder is determined as the holder terminal.

The moving distance per certain time (for example, 1 second) of the portable device for vehicle 200 can be specified by time-integrating the moving speed of the portable device for vehicle 200 in that time zone. The calculation method of the moving speed at each detection time is as described above. The holder terminal identification unit G4 generates data (hereinafter, distance change pattern data) indicating the change over time of the moving distance per fixed time by performing the same calculation process with each detection time as the target time. Although the method for specifying the distance change pattern of the portable device for vehicle 200 has been described above, the distance change pattern data of the portable terminal 300 can also be generated by the same method.

The holder terminal specifying unit G4 compares the distance change pattern data for each portable terminal 300 present in the vicinity of the own device with the distance change pattern data of the vehicle portable device 200 in order to specify the holder terminal. And the portable terminal 300 which provides distance change pattern data with the largest coincidence with the distance change pattern data of the portable device 200 for vehicles among each portable terminal 300 is determined as a holder terminal. For example, when the distance change pattern data for each communication terminal conceptually shown in FIG. 33 is obtained as a result of the above-described processing, the portable terminal 300A is determined as the holder terminal.

Of course, as another aspect, the holder terminal specifying unit G4 calculates, for each communication terminal, a moving distance in a past fixed time with the latest detection time as a starting time, and among the mobile terminals 300, the portable device for vehicles The portable terminal 300 having the movement distance closest to the movement distance of 200 may be determined as the holder terminal. The movement distance per fixed time also corresponds to an example of the index state quantity.

Information regarding the occupant (for example, the owner terminal information) identified by the above processing may be transmitted to the vehicle V at a predetermined timing. Of course, when the holder terminal can be specified, the portable terminal 300 other than the holder terminal is a passenger terminal. Therefore, as mentioned in the modified example 7, information (for example, terminal ID) about the passenger terminal can be transmitted as information related to the passenger. The occupant information acquisition unit F6 included in the vehicle-side control unit identifies a user who corresponds to the portable device holder based on the occupant information transmitted from the vehicle portable device 200. In other words, the same effects as those of the embodiment and the like can be obtained by this modification.

In the above, each mobile terminal 300 transmits acceleration history data to the vehicular portable device 200, and the vehicular mobile device 200 specifies the stride of the user of each mobile terminal 300 based on the transmitted data. However, the present invention is not limited to this. A mode in which the mobile terminal 300 identifies the user's own stride and the like and notifies the vehicle portable device 200 of the identification result may be employed. The mobile terminal 300 can specify the user's stride and the like by performing the above-described arithmetic processing on the output history (that is, acceleration history data) of the acceleration sensor 330.

According to such an aspect, it is possible to suppress a calculation load on the portable device side control unit 210. Moreover, the data amount transmitted / received by the portable device 200 for vehicles and the portable terminal 300 can also be suppressed. Note that data indicating the user's own stride and the like transmitted by the mobile terminal 300 corresponds to behavior notification data, particularly processed state quantity data.

[Modification 17]
In addition, the holder terminal specifying unit G4 may specify the holder terminal using a temporal change pattern in the direction in which each communication terminal is facing. Hereinafter, an embodiment based on such a concept will be disclosed as a modified example 17.

Each mobile terminal 300 in Modification 17 includes a geomagnetic sensor 340 as shown in FIG. The geomagnetic sensor 340 is a sensor that measures the direction of the magnetic field and detects the azimuth angle toward which the mobile terminal 300 is facing. Here, as an example, the geomagnetic sensor 340 is a triaxial geomagnetic sensor that detects the geomagnetism by decomposing it into three axial components orthogonal to each other. The detection results of the geomagnetic sensor 340 are sequentially provided to the terminal side control unit 310.

The geomagnetic sensor 340 may be a biaxial geomagnetic sensor. The azimuth angle may be expressed in degrees from 0 degrees to 359 degrees with a predetermined direction as a reference. Here, as an example, the azimuth angle is expressed as an angle so that north is 0 degrees, east is 90 degrees, south is 18 degrees, and west is 270 degrees. Note that the reference direction (in other words, the direction of 0 degree) does not necessarily have to be true north. The direction in which the earth's magnetic north pole is present (so-called magnetic north) may be used, and other directions such as true east and true south may be adopted.

When the terminal-side control unit 310 acquires data indicating the detection result of the geomagnetic sensor 340 (hereinafter, azimuth angle data), the terminal-side control unit 310 adds a time stamp indicating the detection time to the data and stores the data in the RAM 312 for a certain period of time. The handling of the azimuth angle data in the RAM 312 may be the same as the acceleration data. Hereinafter, a set of data in which the azimuth angle data for the latest fixed time is arranged in time series is referred to as azimuth angle history data. Similar to the acceleration history data, the azimuth history data functions as data representing the history of the behavior of the user carrying the mobile terminal 300 within a certain time from the current time. The azimuth history data also corresponds to the state quantity history data.

Furthermore, the mobile terminal 300 according to the modified example 17 transmits a communication packet (that is, a behavior notification packet) including azimuth angle history data to the vehicular portable device 200 by short-range communication in addition to the acceleration history data stored in the RAM 312. Send. Of course, as described in the modification example 16, the behavior notification packet includes information (for example, terminal ID) indicating the transmission source.

35. As shown in FIG. 35, the vehicular portable device 200 according to the modified example 17 includes a geomagnetic sensor 260, and the portable device-side control unit 210 includes an azimuth angle information acquisition unit G9. The geomagnetic sensor 260 has the same function as the geomagnetic sensor 340 included in the mobile terminal 300.

The azimuth angle information acquisition unit G9 acquires data indicating the detection result of the geomagnetic sensor 260 (that is, azimuth angle data). The azimuth angle information acquisition unit G9 may be realized by the CPU executing the program for the portable terminal, or may be realized using a hardware member such as an IC. When the azimuth angle information acquisition unit G9 acquires the azimuth angle data, the azimuth angle information acquisition unit G9 adds a time stamp indicating the detection time to the data and stores the data in the RAM 212 for a certain period of time. The azimuth angle information acquisition unit G9 corresponds to a state quantity acquisition unit.

The handling of the azimuth angle data in the RAM 212 may be the same as the acceleration data. That is, the RAM 212 stores azimuth angle history data for the vehicular portable device 200 (hereinafter, the own azimuth angle data). The own device azimuth data functions as data representing the history of the behavior of the portable device holder within a predetermined time from the current time, like the own device acceleration data.

Further, when the short-range communication processing unit G3 receives the behavior notification packet transmitted from the mobile terminal 300 existing around the own device, each of the acceleration history data and the azimuth angle history data indicated in the received behavior notification packet Is stored in the RAM 212 in association with the terminal ID.

Then, the holder terminal specifying unit G4 specifies the holder terminal using the own device azimuth angle data stored in the RAM 212 and the azimuth angle history data of the portable terminal 300 existing around the own device. Hereinafter, as in the case of the modified example 16, the case where the user A is a portable device holder and only the user B exists around the user A is taken as an example, and the holder terminal specifying unit in the modified example 17 The operation mode of G4 will be described.

First, the holder terminal specifying unit G4 generates the distance change pattern data of each communication terminal according to the procedure described in the modified example 16. Specifically, the distance change pattern data of the mobile device for vehicle 200, the distance change pattern data for the mobile terminal 300A, and the distance change pattern data for the mobile terminal 300B are generated.

Next, the holder terminal specifying unit G4 specifies a change amount per unit time (hereinafter referred to as an azimuth angle change amount) of the orientation of the mobile device 200 for the vehicle based on the own device acceleration data, and for each mobile terminal 300. Based on the acceleration history data, the azimuth change amount of each mobile terminal 300 is specified.

The azimuth angle change amount at a certain time of the portable device for vehicle 200 may be a value obtained by subtracting the power indicating the azimuth at a time one second before the time from the power indicating the current azimuth. That is, the azimuth change amount may be a difference between the latest detection value and the detection value one second before. The holder terminal specifying unit G4 generates the data (hereinafter referred to as azimuth angle change pattern data) indicating the trajectory of the change in the azimuth change amount with time by performing the same calculation process for each detection time point. To do. The holder terminal specifying unit G4 also generates the azimuth angle change pattern data of the mobile terminal 300 by a method similar to the method of generating the distance change pattern data of the vehicular portable device 200.

Then, the holder terminal specifying unit G4 specifies the holder terminal using both the movement distance change pattern and the azimuth change pattern. For example, the distance change pattern for each mobile terminal 300 existing around the own device is compared with the distance change pattern of the vehicle portable device 200, and the distance change pattern having the highest degree of coincidence with the distance change pattern of the vehicle portable device 200 The mobile terminal 300 that provides data and the mobile terminal 300 that provides distance change pattern data having the second highest degree of coincidence are specified.

Next, each of the azimuth angle change pattern data of the two portable terminals 300 is compared with the azimuth angle change pattern data of the vehicular portable device 200, and the degree of coincidence with the azimuth angle change pattern data of the vehicular portable device 200 is high. The portable terminal 300 is determined as the holder terminal. For example, when a result as shown in FIG. 36 is obtained, the holder terminal specifying unit G4 determines the portable terminal 300A as the holder terminal. This is because the mobile terminal 300A realizes azimuth angle change pattern data having a higher degree of coincidence with the azimuth angle change pattern data of the mobile device 200 for the vehicle than the mobile terminal 300B.

In the above description, the mode in which the holder terminal is specified using both the movement distance change pattern and the azimuth angle change pattern is illustrated, but the present invention is not limited thereto. The holder terminal may be specified using only the azimuth change pattern data. In that case, the portable terminal 300 that provides the azimuth angle change pattern data having the highest degree of coincidence with the azimuth angle change pattern of the vehicular portable device 200 may be determined as the holder terminal. Note that specifying the holder terminal using both the movement distance change pattern and the azimuth angle change pattern is equivalent to specifying the holder terminal using the temporal change of the movement vector.

Moreover, the holder terminal specific | specification part G4 as another aspect calculates the variation | change_quantity of the azimuth angle which uses the newest detection time as the starting time for every communication terminal, and among the portable terminals 300, the portable device 200 for vehicles is calculated. The portable terminal 300 having the azimuth change amount closest to the azimuth change may be determined as the holder terminal. Note that the amount of change in azimuth can also be calculated using a gyro sensor. Therefore, the detection value of the gyro sensor can also be adopted as the state quantity.

Information related to the occupant specified by the above processing (for example, the holder terminal information) may be transmitted to the vehicle V at a predetermined timing as in the above-described modification example 16. According to such an aspect, effects similar to those of the embodiment and the like can be obtained also by this modification.

[Modification 18]
In addition, the holder terminal specifying unit G4 can specify the holder terminal using the position information of each communication terminal. Hereinafter, an embodiment based on such an idea will be disclosed as a modified example 18.

Each mobile terminal 300 in Modification 18 includes a GNSS receiver 350 as shown in FIG. The GNSS receiver 350 sequentially detects the current position of the GNSS receiver 350 (for example, every 100 milliseconds) by receiving a positioning signal transmitted from a positioning satellite that constitutes a GNSS (Global Navigation Satellite System). It is a device. The detection results of the GNSS receiver 350 are sequentially provided to the terminal side control unit 310. Note that the current position detected by the GNSS receiver 350 may be expressed by, for example, latitude and longitude.

When the terminal-side control unit 310 acquires data indicating the current position specified by the GNSS receiver 350 (hereinafter, position data), the terminal-side control unit 310 adds a time stamp indicating the detection time to the position data and stores the data in the RAM 312 for a certain period of time. The handling of the position data in the RAM 312 may be the same as the acceleration data described above. Hereinafter, a piece of data in which position data for the latest fixed time is arranged in time series is referred to as position history data. The position history data functions as data representing the movement locus of the mobile terminal 300 within a certain time from the current time. The position information at each time point is given a time stamp indicating the detection time.

Furthermore, the mobile terminal 300 in the present modification 18 transmits a communication packet including the position history data stored in the RAM 312 (hereinafter, a position information packet) to the vehicular portable device 200 by short-range communication. Of course, the position information packet includes information (for example, terminal ID) indicating the transmission source. The position history data accommodated in the position information packet also corresponds to an example of behavior notification data, particularly state quantity history data.

38. As shown in FIG. 38, the vehicular portable device 200 according to the modified example 18 includes a GNSS receiver 270, and the portable device-side control unit 210 includes a position information acquisition unit G10. The GNSS receiver 270 has the same function as the GNSS receiver 350 included in the mobile terminal 300.

The position information acquisition unit G10 acquires data indicating the detection result of the GNSS receiver 270 (that is, position data). The position information acquisition unit G10 may be realized by the CPU executing the portable terminal program, or may be realized using a hardware member such as an IC. When the position information acquisition unit G10 acquires the position data from the GNSS receiver 270, it adds a time stamp to the data and stores it in the RAM 212 for a certain period of time.

The handling of position data in the RAM 212 may be the same as the acceleration data described above. That is, the position history data of the vehicle portable device 200 is stored in the RAM 212. The position history data of the vehicular portable device 200 functions as data representing the movement trajectory of the vehicular portable device (in other words, the portable device holder) within a certain time from the present time.

Also, the near field communication processing unit G3 cooperates with the near field communication unit 230 to receive the position information packet transmitted from the mobile terminal 300 existing around the own device. Then, the terminal ID and the position history data indicated in the received position information packet are stored in the RAM 212 in association with each other.

The holder terminal specifying unit G4 in the modification 18 specifies the holder terminal using the position history data of the own device stored in the RAM 212 and the position history data of the portable terminal 300 existing around the own device. . Thereafter, as in the case of the modified examples 16 and 17, the case where the user A is a portable device holder and only the user B exists in the vicinity of the user A is taken as an example. The operation mode of the part G4 will be described.

The holder terminal identification unit G4 generates inter-terminal distance transition data indicating the transition of the distance between the mobile terminal 300 and the own device (hereinafter referred to as inter-terminal distance) for each mobile terminal 300 as one operation mode. The inter-terminal distance between the mobile terminal 300A and the vehicle portable device 200 at a certain time is a difference between the position of the mobile terminal 300A and the position of the vehicle portable device 200 at the time. The holder terminal specifying unit G4 calculates the inter-terminal distance at the time by referring to the position data at the same time in the position history data of the own device and the position history data of the mobile terminal 300A. By executing such processing for position data at a plurality of points in time, inter-terminal distance transition data for the mobile terminal 300A is generated. The inter-terminal distance transition data for the portable terminal 300B is also generated in the same procedure.

Then, the holder terminal specifying unit G4 compares the inter-terminal distance transition data for the mobile terminal 300A and the inter-terminal distance transition data for the mobile terminal 300B, and the mobile terminal that is relatively moving near 0 The terminal 300 is determined as the holder terminal. This is because the holder terminal is carried by the holder of the portable device, and the distance between the terminals can be expected to change from 0 to less than 1 meter. For example, when a result as shown in FIG. 39 is obtained, the holder terminal specifying unit G4 determines the portable terminal 300A as the holder terminal. The transition level used for the determination may be an average value of the distances between terminals at a plurality of points in time or a median value.

In addition, although the aspect which calculates the distance between terminals in multiple time points, and pinpoints a holder | retainer terminal based on the transition level of the distance between terminals was illustrated above, the specific method using position data is not restricted to this. For example, at any given time, the portable terminal 300 that is closest to the vehicle portable device 200 may be determined as the holder terminal. Alternatively, for each mobile terminal 300, a variance value of the distance between terminals may be calculated, and the mobile terminal 300 having the smallest variance value may be determined as the holder terminal.

Moreover, although the above calculated | required the distance between terminals on the basis of the position of the portable device 200 for vehicles about each portable terminal 300, and specified the holder | retainer terminal using the said distance between said terminals, the aspect of a holder | retainer terminal was disclosed. The identification method is not limited to this.

For example, the position history data for each portable terminal 300 present in the vicinity of the own device is compared with the position history data of the portable device 200 for the vehicle, and the portable device that provides the movement locus closest to the movement locus of the portable device for the vehicle 200 is provided. The terminal 300 may be determined as the holder terminal. The movement history of each communication terminal is indicated by position history data.

The holder terminal can be specified also in this manner. Of course, when the holder terminal is specified, the remaining portable terminal 300 may be determined as a passenger terminal. And the passenger | crew information specified by the above process should just be transmitted to the onboard equipment 100 at a predetermined timing. Even in such an aspect, the same effects as those of the above-described embodiment and the like are obtained.

[Modification 19]
In the above, although the portable device 200 for vehicles disclosed the aspect which pinpoints a holder | retainer terminal by implementing near field communication with the portable terminal 300 which exists in the periphery of an own machine, it is not restricted to this. When the portable device 200 for vehicles and each portable terminal 300 are provided with the communication module for implementing near field communication (Near Field Communication: NFC), the portable device with which the near field communication was established with the portable device 200 for vehicles. The terminal 300 may be determined as the holder terminal.

”Near field communication here refers to communication using a communication method in which the communicable distance is sufficiently smaller than near field communication. For example, near-field communication refers to communication in which the communicable distance is about several centimeters to several tens of centimeters. In other words, near-field communication is communication compliant with standards such as ISO / IEC 14443 and ISO / IEC 18092.

In addition, when the vehicle portable device 200 and each portable terminal 300 are provided with a connector module for performing wired communication in accordance with a predetermined communication standard, the portable device connected to the vehicle portable device 200 by wire. The terminal 300 may be determined as the holder terminal.

[Modification 20]
In addition, the method for the vehicle portable device 200 to identify a user as a portable device holder who intends to use the vehicle V in a state where the vehicle V is parked is the embodiment or the modified example 10 (hereinafter, the embodiment or the like). It is not restricted to the method illustrated in.

In the above-described embodiments and the like, the amount of fluctuation in the received signal strength (hereinafter, RSSI: Received Signal Strength Strength Indication) of the portable terminal 300 carried by the portable device holder is smaller than the amount of fluctuation of the RSSI of the passenger terminal. The holder terminal is specified as a premise. However, as a result of various tests, the inventors have determined that the RSSI of the holder terminal depends on the combination of the portable device 200 and the portable terminal 300 held by the portable device holder (in other words, depending on their positional relationship). It has been found that there is a case where the amount of fluctuation of the vehicle is larger than the RSSI fluctuation amount of the passenger terminal.

The configuration and method disclosed below as modified example 20 are intended to identify the holder terminal (in other words, the portable device holder) with higher accuracy, assuming an exceptional event as described above. Note that various modifications to the above-described embodiment can be applied to the modification 20 as long as no contradiction occurs. Hereinafter, the RSSI fluctuation amount is referred to as the RSSI fluctuation amount of the mobile terminal.

40, the mobile terminal 300 according to the modification 20 includes an acceleration sensor 330 that detects acceleration acting on itself. Here, as an example, the acceleration sensor 330 is a sensor (that is, a three-axis acceleration sensor) that measures acceleration along three axial directions orthogonal to each other. Of course, as another aspect, the acceleration sensor 330 may be a two-axis acceleration sensor, a one-axis acceleration sensor, or the like. The detection result of the acceleration sensor 330 is sequentially provided to the terminal side control unit 310. The acceleration sensor 330 corresponds to a terminal side acceleration sensor.

The terminal-side control unit 310 includes a possession form identifying unit 312 that identifies its own possession form by a user (hereinafter, terminal owner) who possesses the mobile terminal 300 based on the output of the acceleration sensor 330. Here, as an example, it is assumed that the possession form of the mobile terminal 300 by the terminal owner is classified into two possession forms: a trunk proximity possession form and an upper limb interlocking possession form. That is, the possessing form specifying unit 312 specifies whether the own possessing form by the terminal owner corresponds to the trunk proximate carrying form or the upper limb interlocking carrying form based on the output of the acceleration sensor 330.

Here, the torso proximity possession form is a possession form in which acceleration linked to the movement of the trunk of the terminal holder acts on the mobile terminal 300. The trunk refers to a part of the human body other than the limbs, and specifically refers to the head, neck, chest, abdomen, pelvis, and the like. The back part indicating the back of the region from the neck to the abdomen and the lumbar part indicating the region between the rib cage and the pelvis also correspond to the trunk.

The case where the possession form of the portable terminal 300 corresponds to the trunk proximate possession form is specifically a case where the portable terminal 300 is accommodated in a pocket of clothing (trousers or jacket) worn by the terminal holder. Alternatively, the portable terminal 300 is housed in a container that is in contact with the trunk, such as a backpack or a waist pouch.

The upper limb-linked possession form is a possession form in which acceleration linked to the movement of the user's upper limb (that is, the hand) acts on the mobile terminal 300. The case where the possession form of the mobile terminal 300 corresponds to the upper limb interlocking possession form means that the terminal owner has the mobile terminal 300 directly in his / her hand or the contents held in the hand of the terminal owner (for example, a handbag) ) In which the portable terminal 300 is accommodated.

There are various methods by which the possessing form identifying unit 312 identifies, based on the output of the acceleration sensor 330, whether the possessing form of the mobile terminal 300 by the terminal owner corresponds to the trunk proximate carrying form or the upper limb interlocking carrying form. The method can be invoked.

Here, as an example, the possessing form specifying unit 312 has a possessing form when periodic fluctuations according to the rhythm of the terminal owner walking are observed in the acceleration in the vertical direction (in other words, the direction in which gravity acts). Is determined to be in the form of a torso proximity. This is because, if the possession form is a trunk proximity possession form, the vibration in the vertical direction according to the walking of the terminal owner acts on the mobile terminal 300 relatively strongly.

On the other hand, periodic fluctuations according to the rhythm that the terminal holder walks in the vertical acceleration is not observed, or even when observed, the amplitude is below a predetermined threshold, And when the fluctuation range of the acceleration which acts on a horizontal direction is more than a predetermined threshold value, it determines with a possession form being an upper limb interlocking possession form.

This is because, if the possession form is an upper limb interlocking possession form, the acceleration in the horizontal direction according to the movement of the terminal holder waving his hand (hereinafter referred to as the swing action) acts on the mobile terminal 300 relatively strongly. It is to do. Specifically, when the terminal holder is walking, the vertical vibration accompanying the walking of the terminal holder is mitigated by the upper limb and hardly acts on the mobile terminal 300. On the other hand, when the terminal holder is walking, the terminal holder swings his / her hand, so the horizontal acceleration is likely to fluctuate. Therefore, according to the above determination criteria, it can be determined that the possession form by the terminal owner is the upper limb interlocking possession form.

It should be noted that specific values of various threshold values used for determination may be determined by a test or the like. Of course, the method of specifying the possession form of the mobile terminal 300 is not limited to the above-described method, and various known methods can be used. For example, the determination may be made using the method disclosed in Japanese Patent No. 5232211. The possession form specifying unit 312 may be realized by the CPU executing the portable terminal program, or may be realized using a hardware member such as an IC.

The portable terminal 300 transmits a communication packet indicating the possession form identified by the possession form identifying unit 312 (hereinafter, possession form notification packet) to the vehicular portable device 200 by short-range communication. Of course, the possession form notification packet includes information (for example, terminal ID) indicating the transmission source.

Moreover, as a more preferable aspect in the present modification 20, when the possession form identifying unit 312 determines that the possession form is the upper limb interlocking possession form, the swing form Tswg is identified from the time change of the acceleration acting in the horizontal direction. To do. The swing period Tswg corresponds to a period in which the terminal owner shakes his / her hand. Furthermore, when the swing period Tswg can be specified, the possessing form specifying unit 312 sequentially specifies the current phase when the swing period Tswg is one period. The phase may be expressed by a value of 0 degree or more and less than 360 degree. Of course, the phase may be represented by an arc method (so-called radians).

In addition, when the possession form identifying unit 312 determines that the possession form is the upper limb-linked possession form, the possession form notification packet transmitted to the vehicle portable device 200 includes the swing period identified by the possession form identifying unit 312. It is assumed that Tswg and phase timing information indicating the timing when the phase becomes 0 degree or 180 degrees are also included. If the swing period Tswg cannot be specified, the possession form notification packet only needs to contain data indicating that the hand movement has no periodicity.

Furthermore, the mobile terminal 300 uses the short distance communication to transmit data (hereinafter referred to as acceleration data) in which the detection results of the acceleration sensor 330 in the latest fixed time are arranged in time series based on a request from the mobile device 200 for a vehicle. To the portable device 200. It is assumed that the acceleration data includes time information indicating the time when each detection result is acquired.

In addition to the various functional blocks described above, the portable device-side control unit 210 in the modification 20 includes a possessing form pattern specifying unit G7, a walking determination unit G8, a positional relationship determination unit G9, and a swing state determination as shown in FIG. Part G10 is provided. Each of the possession form pattern specifying unit G7, the walking determination unit G8, the positional relationship determination unit G9, and the swing state determination unit G10 may be realized by the CPU 211 executing a portable device control program, or a hardware such as an IC You may implement | achieve using a wear member.

The possessing form pattern specifying unit G7 has a combination of the own possessing form by the portable device holder and the possessing form by the terminal owner of the target mobile terminal 300 (hereinafter, possessing form pattern) as the first, second, Which of the third patterns is specified is specified. Here, the target mobile terminal 300 is a mobile terminal 300 existing around the own device. The possession form pattern specifying unit G7 specifies the possession form pattern described above for each portable terminal 300 present around the own device.

The first pattern refers to a pattern in which both the target portable terminal 300 (hereinafter referred to as the target terminal) and the own device are in the form of close to the trunk, and the second pattern is linked to the upper limbs of both the target terminal and the own device. It refers to the pattern that is in possession. The third pattern refers to a pattern in which either the target terminal or the own device has a trunk proximity possession form, and the other has an upper limb interlocking possession form. It should be noted that the upper limb interlocking possession form and the trunk proximity possession form for the portable device 200 for the vehicle refer to the possession form similar to the upper limb interlocking possession form and the trunk proximity possession form for the mobile terminal 300.

This possessing form pattern specifying unit G7 includes own apparatus possessing form specifying part G71 and other apparatus possessing form specifying part G72 as finer elements. The own device possession form specifying unit G71 is a functional block that identifies the possession form of the own device by the portable device holder based on the detection result of the acceleration sensor 250. The method of specifying the possession form of the own apparatus by the own apparatus possession form specifying unit G71 may be the same method as the possession form specifying unit 312 provided in the mobile terminal 300.

The other device possession form specifying unit G72 is a functional block that identifies the possession form of the mobile terminal 300 existing around the own apparatus. The other-device possession form specifying unit G72 cooperates with the short-range communication unit 230 and receives a possession form notification packet transmitted from the mobile terminal 300 existing around the self-device. Then, the terminal ID and the possession form indicated in the received possession form notification packet are stored in the RAM 212 in association with each other. In other words, the other-device possession form specifying unit G72 in the present embodiment receives the possession form notification packet transmitted from the portable terminal 300, and identifies the possession form for each portable terminal 300 existing around the own apparatus.

In the present embodiment, a mode is adopted in which the mobile terminal 300 identifies its own possession form and notifies the vehicle portable device 200 of the identification result, but is not limited thereto. As another aspect, the portable terminal 300 transmits data indicating the detection results of the acceleration sensor 330 at a plurality of points in time (that is, acceleration data) to the vehicle portable device 200, and the vehicle portable device 200 is based on the transmitted data. Thus, the possession form of the portable terminal 300 may be specified. Even in such an aspect, the portable device 200 for a vehicle can grasp the possession form of the portable terminal 300 existing around the own device.

And possession form pattern specific | specification part G7 specifies the possession form pattern for every portable terminal 300 based on the specific result by own apparatus possession form specific part G71, and the specific result of other apparatus possession form specific part G72. For example, when the possession form of the own device is a trunk proximity possession form, it is determined that the possession form pattern with the mobile terminal 300 whose possession form is the trunk proximity possession form corresponds to the first pattern . Moreover, it determines with the possession form pattern with the portable terminal 300 whose possession form is an upper limb interlocking possession form correspond to a 3rd pattern. FIG. 42 shows an example of each possessing form pattern when two portable terminals 300 exist around the own device.

The walking determination unit G8, the positional relationship determination unit G9, and the swing state determination unit G10 will be described later.

<Holder terminal identification process>
Next, with reference to the flowcharts shown in FIG. 43 and FIG. 44, a series of processes (hereinafter referred to as a holder terminal specifying process) performed by the portable device-side control unit 210 in Modification 20 to identify the portable device holder. explain. This holder terminal specifying process may be started, for example, when authentication by wireless communication between the vehicle-mounted device 100 and the vehicle portable device 200 is established. Of course, the conditions for starting the process are not limited to this, and may be appropriately designed.

First, in step S601, the short-range communication processing unit G3 starts sampling processing, and proceeds to step S602. Thereby, the sequential scanning process is performed. In step S602, the holder terminal specifying unit G4 specifies the number of portable terminals 300 existing around the own device based on the result of the scanning process.

If there is only one mobile terminal 300 in the vicinity of the own device, an affirmative determination is made in step S602 and the process proceeds to step S603. In step S603, the holder terminal specifying unit G4 determines that only one detected portable terminal 300 is the holder terminal, and ends this flow.

On the other hand, if the number of mobile terminals 300 present around the own device is two or more, a negative determination is made in step S602, and the process proceeds to step S604. Note that if no mobile terminal 300 is detected, this flow may be terminated. In that case, exception processing that should be designed as appropriate, such as performing step S601 again after a certain time, is executed.

In step S604, the holder terminal specifying unit G4 determines whether there is a mobile terminal 300 whose RSSI is equal to or greater than a predetermined determination threshold value P1. When there is a mobile terminal 300 whose RSSI is equal to or greater than the determination threshold P1, an affirmative determination is made in step S604, and the process proceeds to step S603, where the mobile terminal 300 is determined as a holder terminal.

The determination threshold value P1 introduced here is a threshold value for determining the holder terminal from the RSSI, and is set to a sufficiently large value. For example, the threshold for determination may be a minimum value or an average value of RSSI that can be observed when the vehicular portable device 200 and the mobile terminal 300 exist within a line-of-sight of 0.5 m.

On the other hand, if there is no portable terminal 300 whose RSSI is equal to or greater than the determination threshold value P1, a negative determination is made in step S604, and the process proceeds to step S605. In step S605, the holder terminal specifying unit G4 determines whether there is a mobile terminal 300 whose RSSI is less than the predetermined exclusion threshold P2.

The exclusion threshold P2 introduced here is a threshold set for the RSSI in order to identify the portable terminal 300 held by a person other than the portable device holder (that is, a passenger). In other words, it is a threshold value for excluding the mobile terminal 300 that is unlikely to be a holder terminal from among the mobile terminals 300 present around the vehicular portable device 200.

When the RSSI is sufficiently large, the possibility that the portable terminal 300 is a holder terminal is high, while the smaller the RSSI is, the smaller the possibility that the portable terminal 300 is a holder terminal is. Therefore, the mobile terminal 300 whose RSSI is less than a predetermined value can be regarded as a mobile terminal held by the passenger (hereinafter referred to as a passenger terminal). A specific value of the exclusion threshold value P2 may be designed as appropriate. The exclusion threshold value P2 is preferably set to a value smaller than the RSSI observed when the positional relationship between the mobile terminal 300 and the vehicle mobile device 200 is an indirect propagation pattern.

If there is a mobile terminal 300 whose RSSI is less than the predetermined exclusion threshold P2, an affirmative determination is made in step S605 and the process proceeds to step S606. On the other hand, when there is no portable terminal 300 whose RSSI is less than the exclusion threshold P2, a negative determination is made in step S605, and the process proceeds to step S608.

In step S606, the portable terminal 300 is determined as a passenger terminal, and the process proceeds to step S607. In step S607, as a result of determining the passenger terminal, it is determined whether or not only one portable terminal 300 remains. If there is only one remaining portable terminal 300, an affirmative determination is made in step S607 and the process proceeds to step S603, where the remaining portable terminal 300 is determined as a holder terminal, and this flow ends. On the other hand, if there are two or more remaining mobile terminals 300, a negative determination is made in step S607 and the process proceeds to step S608.

In step S608, based on the detection result of the acceleration sensor 250, the own device possession form specifying unit G71 identifies whether the own form of the own apparatus corresponds to the trunk proximity possession form or the upper limb interlocking possession form, and step S609. Move on.

By the way, in this embodiment, after performing the determination process of steps S604 to S607, the process after step S608 is performed. Therefore, the mobile terminal 300 to be processed in step S608 and thereafter is the mobile terminal 300 whose RSSI is less than the determination threshold value P1 and is equal to or more than the exclusion threshold value P2 among the mobile terminals 300 existing around the own device. It is. Hereinafter, for the sake of convenience, the mobile terminal 300 that is the target of subsequent processing is referred to as a candidate terminal. This is because the mobile terminal 300 remains as a candidate for the holder terminal.

In step S609, the other-device possession form identification unit G72 identifies the possession form for each candidate terminal based on the possession form notification packet transmitted from each candidate terminal, and proceeds to step S610. In addition, transmission of the possession form notification packet by the candidate terminal may be performed in a mode in response to a request from the portable device for vehicle 200, or may be performed spontaneously at a predetermined cycle.

In step S610, the possession form pattern specifying unit G7 identifies the possession form pattern for each candidate terminal. Then, it is determined which of the first to third patterns the specified possessing form pattern corresponds to.

For the candidate terminal determined as the first pattern in step S610, the first pattern version variation calculation process in step S611 is performed, and the process proceeds to step S614. For the candidate terminal determined as the second pattern in step S610, the second pattern version variation calculation process in step S612 is performed, and the process proceeds to step S614. Further, for the candidate terminal determined as the third pattern in step S610, the third pattern version variation calculation process in step S613 is performed, and the process proceeds to step S614.

Details of each of the first to third pattern version variation calculation processes will be described later. In step S614, the candidate terminal with the smallest RSSI fluctuation amount is determined as the holder terminal, and the process proceeds to step S615. In step S615, the remaining candidate terminals are determined to be fellow passenger terminals, and this flow ends.

<First pattern version variation calculation processing>
Here, the first pattern plate variation calculation process will be described. This first pattern version fluctuation amount calculation process is a process for calculating the fluctuation amount of the mobile terminal 300 whose possession pattern is the first pattern.

The reason for carrying out this first pattern version variation calculation process is as follows. In the above-described embodiments and the like, the holder terminal is specified on the assumption that the RSSI fluctuation amount of the portable terminal 300 carried by the portable device holder is smaller than the RSSI fluctuation amount of the passenger terminal. However, as a result of various tests, the inventors have found that when the portable device holder has both the vehicle portable device 200 and the portable terminal 300 in the form of close to the trunk, the RSSI fluctuation amount is the passenger. It has been found that there are cases where the amount of fluctuation is larger than the RSSI variation of the terminal.

This is because when both the portable device 200 for a vehicle and the portable terminal 300 are carried by the portable device holder in the form of a close to the trunk, the portable device for the vehicle 200 is carried in conjunction with the movement of the trunk during walking. This is because the attitude of the terminal 300 changes dynamically. Specifically, the signal propagation path from the holder terminal to the vehicle portable device 200 dynamically changes in conjunction with the movement of the trunk associated with walking, and the RSSI during walking is the RSSI when stopped. Tend to change at different levels.

Therefore, when the RSSI collected at the time of walking and the RSSI collected at the stop are included in the population for calculating the dispersion amount of the RSSI, the RSSI fluctuation amount becomes relatively large. As a result, the RSSI fluctuation amount of the holder terminal may be larger than the RSSI fluctuation amount of the passenger terminal.

Also, the holder terminal specifying unit G4 employs the mobile terminal 300 having the smallest RSSI fluctuation amount as the holder terminal. Therefore, when the portable device holder has the vehicle portable device 200 and the portable terminal 300 in the first pattern, the holder terminal may be erroneously determined due to the behavior described above.

This first pattern version variation calculation process is a process for suppressing the erroneous determination derived from the behavior described above. Specifically, the following processing is performed. For convenience, a certain mobile terminal 300 that is the target of the first pattern version variation calculation process is referred to as a target terminal.

First, the walking determination unit G8 determines whether the portable device holder is walking based on the detection result of the acceleration sensor 250. A known determination algorithm can be used as a method for determining whether or not the portable device holder is walking from the detection result of the acceleration sensor 250.

For example, as disclosed in Japanese Patent No. 5459179, the walking determination unit G8 determines whether or not the portable device holder is walking based on the presence or absence of periodicity of acceleration acting in the vertical direction. Note that the attitude of the vehicular portable device 200 with respect to the space can be specified by a known method from the output of the acceleration sensor 250. The acceleration acting in the vertical direction may be obtained by, for example, projecting the output value for each axial direction of the acceleration sensor 250 in the vertical direction using a rotation matrix corresponding to the attitude of the portable device 200 for vehicles.

And the holder terminal specific | specification part G4 uses only RSSI acquired while it is determined by the walk determination part G8 that the portable device holder is walking among RSSI of the target terminal acquired sequentially by the sampling process. The RSSI fluctuation amount for the target terminal is calculated.

FIG. 45 is a diagram conceptually illustrating the operation of the walking determination unit G8. The graph shown at the top of FIG. 45 represents the transition of vertical acceleration acting on the vehicle portable device 200, and the middle graph shows whether the portable device holder is walking with respect to the acceleration transition. It represents the result of the walking determination unit G8 determining whether or not. Specifically, it is determined that the portable device holder is walking during the period from time T1 to time T2 and the time zone after time T3.

Therefore, in the situation shown in FIG. 45, the holder terminal specifying unit G4 calculates the RSSI fluctuation amount of the target terminal using the RSSI of the target terminal acquired from time T1 to time T2 or after time T3. To do.

In this embodiment, the RSSI fluctuation amount of the target terminal is calculated using the RSSI collected while walking while not using the RSSI collected while the portable device holder is stopped. However, the present invention is not limited to this. Conversely, the RSSI collected while the portable device holder is walking may not be used, but may be calculated using the RSSI collected while the portable device holder is stopped.

However, the state in which the positional relationship with the other portable terminal 300 is likely to change is a state in which the portable device holder is walking. Therefore, it is better to calculate using RSSI collected while walking, as in the above-described aspect, than to calculate the RSSI fluctuation amount using RSSI collected while stopping. The holder terminal can be identified with higher accuracy.

<Second pattern version variation calculation processing>
Next, the second pattern version variation calculation process will be described. This second pattern version fluctuation amount calculation process is a process for calculating the fluctuation amount of the mobile terminal 300 in which the possessing form pattern is the second pattern. When the second pattern version fluctuation amount calculation process is executed, at least the vehicle portable device 200 is held in the upper limb interlocking possession form and is possessed in the vicinity of the vehicle portable device 200 in the upper limb interlocking possession configuration. This is a case where the portable terminal 300 is present.

For convenience, the portable terminal 300 that is the target of the second pattern version variation calculation process is also referred to as a target terminal. In the state where the portable device 200 for vehicles is held in the upper limb interlocking possession form, when the portable device holder possesses the mobile terminal 300 in the upper limb interlocking possession form, the portable terminal 300 (that is, the holder terminal) is an object. Corresponds to the terminal. In addition, in the state where the vehicle portable device 200 is held in the upper limb interlocking possession form, when the passenger carries the mobile terminal 300 in the upper limb interlocking possession form, the passenger's mobile terminal 300 is also the target. Corresponds to the terminal.

The reason for carrying out the second pattern version variation calculation process is a misjudgment that may occur when both the portable device for vehicle 200 and the holder terminal are carried in a single container (for example, a handbag). It is for suppressing. Specifically, it is as follows.

The case where the holder terminal corresponds to the target terminal of the second pattern version variation calculation processing means that the portable device holder holds both the vehicle portable device 200 and the holder terminal in one bag. Likely to have in. And when both the portable device 200 for vehicles and the holder | retainer terminal are accommodated in one cage | basket, those positional relationships do not change easily. Therefore, the RSSI fluctuation amount for the holder terminal is also likely to be a relatively small value.

However, when the vehicle portable device 200 and the holder terminal are accommodated in one bag, both are located in a very close position (for example, within 0.3 m), so the positional relationship between the two due to some reason When changes, RSSI fluctuation amount also increases. This is because the RSSI increases as the distance between the devices is shorter, and attenuates more rapidly. As a result, the RSSI fluctuation amount of the holder terminal may be larger than the RSSI fluctuation amount of the passenger terminal.

In addition, in the case where the portable device holder possesses the vehicle portable device 200 and the portable terminal 300 in the second pattern, the right hand and the left hand may be possessed separately. However, the case where the portable device holder who is about to board the vehicle has the vehicle portable device 200 and the holder terminal in the second pattern is different from the case of a single bag held by either the left or right hand. There is a higher possibility that the vehicle portable device 200 and the holder terminal are housed inside. Therefore, the case where the holder terminal corresponds to the target terminal of the second pattern version variation calculation processing means that the vehicle portable device 200 and the holder terminal are accommodated in one bag and carried. Can be considered.

This second pattern version variation calculation process is performed specifically according to the procedure shown in the flowchart of FIG. Note that the sampling process started in step S602 in FIG. 43 is performed in parallel with the second pattern version variation calculation process (in other words, independently).

First, in step S701, the positional relationship determination unit G9 requests the target terminal to transmit acceleration data in cooperation with the short-range communication unit 230. Then, the acceleration data returned from the target terminal is compared with the detection result of the acceleration sensor 250 included in the own device, and the output value (in other words, the transition pattern of the output value) at each time point of each acceleration sensor is obtained. It is determined whether or not they match.

If the transition pattern of the output value of the acceleration sensor matches, an affirmative determination is made in step S702 and the process proceeds to step S704. On the other hand, if the transition patterns of the output values of the acceleration sensor do not match, a negative determination is made in step S702 and the process proceeds to step S703. The match here is not limited to a complete match. A mode is also included in which the match rate is determined to match when the match rate is equal to or higher than a predetermined threshold (for example, 80%). Even if the specific values do not match, if the patterns of change over time such as increase or decrease match, even if it is determined that the transition patterns of the output values of the acceleration sensor match Good. The positional relationship determination unit G9 that executes step S702 corresponds to an acceleration tendency determination unit.

If the target terminal is a holder terminal, both are housed in a single bag, so that both are substantially the same unless an impact that changes their positional relationship is applied. Acceleration should work. Therefore, an affirmative determination in step S702 means that there is a high possibility that the target terminal is a holder terminal. Paradoxically, the negative determination in step S702 means that there is a high possibility that the target terminal is a passenger terminal.

In step S703, the RSSI fluctuation amount is calculated using the RSSI of the target terminal obtained by the sampling process as it is. That is, the fluctuation amount is calculated from the RSSI raw data. The calculation of the fluctuation amount in S703 may be performed at a timing when a sufficient number of data for calculating the fluctuation amount is collected by the sampling process.

In step S704, the acceleration data of the target terminal is compared with the detection result of the acceleration sensor 250 provided in the own device, and it is determined whether or not a gap greater than a predetermined threshold value has occurred in the output value. If a gap greater than a predetermined threshold value has occurred in the output value, the process proceeds to step S705. On the other hand, if no gap equal to or greater than the predetermined threshold value has occurred in the output value, the process proceeds to step S703 to calculate the fluctuation amount using raw data. Hereinafter, for convenience, a period in which a gap of a predetermined threshold or more is generated is referred to as an output difference period.

In step S705, the holder terminal specifying unit G4 calculates a representative value of RSSI before and after the output difference period, and calculates an offset amount. As the representative value, an average value or a median value can be adopted. It should be noted that the RSSI representative value before the output difference period may be determined using the RSSI collected within the past certain time from the start point of the output difference period as a population. The RSSI representative value after the output difference period may be determined using the RSSI collected until a predetermined time has elapsed from the end of the output difference period as a population.

The offset amount corresponds to a change in the RSSI transition level derived from a change in the positional relationship between the portable device 200 for the vehicle and the portable terminal 300 in the cage. When the calculation of the offset amount is completed, the process proceeds to step S706. In step S706, the holder terminal specifying unit G4 calculates the RSSI fluctuation amount using the offset amount calculated in step S705, and ends this flow.

FIG. 47 shows an acceleration sensor output value and RSSI time when the positional relationship is shifted to some time in a situation where the portable device 200 for a vehicle and the holder terminal are accommodated in one bag. It is the figure which represented change conceptually.

The upper part of FIG. 47 is a graph in which the output value of the acceleration sensor 250 of the vehicle portable device 200 and the output value of the acceleration sensor 330 of the target terminal (in this case, the holder terminal) are represented by a broken line, and the vertical axis is the acceleration. The horizontal axis represents time. In the figure, the solid line represents the output value of the acceleration sensor 250 of the vehicle portable device 200, and the broken line represents the output value of the acceleration sensor 330 of the holder terminal. A period from time T4 to time T5 corresponds to an output difference period.

When the vehicular portable device 200 and the holder terminal are accommodated in one bag, as shown in the time zone before the time T4 or after the time T5, the acceleration acting on each of them substantially matches. For example, based on the data of the time zone before time T4, when the portable device for vehicle 200 and the target terminal are accommodated in one bag, an affirmative determination is made in step S702.

47. The graph shown in the middle part of FIG. 47 represents the time change of the RSSI of the holder terminal in the situation described above. As described above, since the positional relationship changes before and after the output difference period, the level at which the RSSI changes varies depending on the positional relationship. Note that FIG. 47 illustrates a mode in which the positional relationship changes so that the RSSI increases, but it goes without saying that the transition level of the RSSI may decrease due to a change in the positional relationship.

Ppre shown in the figure represents a representative value of RSSI before the output difference period, and Paft represents a representative value of RSSI after the output difference period. Pgap is a value obtained by subtracting Ppre from Paft. Pgap corresponds to the offset amount.

When a positional change within the same cage is observed, the positional relationship determination unit G9 subtracts the offset amount from RSSI acquired after the output difference period as shown in the lower paragraph of FIG. The amount of fluctuation is calculated using (hereinafter corrected RSSI).

According to such a configuration, the amount of change increases due to a change in the positional relationship between the vehicle portable device 200 accommodated in one bag and the holder terminal due to some impact, and the passenger It is possible to suppress erroneous determination of a terminal as a holder terminal.

<Third pattern version variation calculation processing>
Next, the third pattern version variation calculation process will be described. This third pattern version fluctuation amount calculation process is a process for calculating the fluctuation amount of the mobile terminal 300 whose possession pattern is the third pattern. The target terminal described in the description of the third pattern version variation calculation process is the mobile terminal 300 that is the target of the third pattern version variation calculation process.

The reason for carrying out the third pattern version variation calculation process is as follows. When the portable device holder has one of the vehicle portable device 200 and the holder terminal in the upper limb interlocking possession form and the other in the trunk proximity possession form, In conjunction with the movement of the upper limb (that is, swing), the positional relationship between the vehicle portable device 200 and the holder terminal changes periodically, and the RSSI of the holder terminal changes periodically.

Also, the RSSI change resulting from the change in the positional relationship between terminals increases as they are closer. As a result, when the portable device holder has the vehicle portable device and the holder terminal in the third pattern, the RSSI fluctuation amount of the holder terminal is larger than the RSSI fluctuation amount of the passenger terminal. Therefore, the portable device for vehicle 200 may erroneously determine the holder terminal.

The third pattern version variation calculation process is a process for suppressing an erroneous determination derived from the behavior described above. Specifically, the third pattern version fluctuation amount calculation process includes a plurality of steps shown in the flowchart of FIG. The sampling process is executed in parallel with the third pattern version variation calculation process (in other words, independently).

First, in step S801, the swing state determination unit G10 determines whether the positional relationship between the target terminal and the vehicle portable device 200 is periodically changed due to the user's swing operation. Specifically, first, it is determined which of the target terminal and the own device is in the upper limb interlocking possession form. And when the apparatus possessed by the upper limbs interlocking possession form is the target terminal, the possession form notification packet transmitted from the target terminal is referred to and whether the output change of the acceleration sensor 330 has periodicity or not. Determine. That is, it is determined whether or not the positional relationship between the target terminal and the vehicle portable device 200 is periodically changed with the swing operation by the user.

In addition, when the device held in the upper limb interlocking possession form is the portable device 200 for vehicles, the periodicity is based on the time change of the output of the acceleration sensor 250 (specifically, the acceleration acting in the horizontal direction). The presence or absence of is determined. If there is periodicity, the period (that is, the swing period Tswg) is specified, and the current phase when the swing period Tswg is one period is also specified sequentially. Of the portable device for vehicle 200 and the target terminal, the device possessed in the upper limb interlocking possession form corresponds to the upper limb interlocking side device.

If the swing period Tswg can be specified in step S801, the process proceeds to step S803. On the other hand, if the swing period Tswg cannot be specified, the process proceeds to step S802. In step S802, the RSSI fluctuation amount is calculated using the RSSI of the target terminal obtained by the sampling process as it is. That is, the fluctuation amount is calculated from the RSSI raw data. Note that the calculation of the fluctuation amount may be performed when a sufficient number of data is collected for calculating the fluctuation amount.

In step S803, the RSSI that is sequentially collected is subjected to correction for canceling the change resulting from the swing operation. Specifically, as shown by x in FIG. 49, a value obtained by dividing the RSSI at a certain point in time by the sum of RSSI at the point in time when the phase is shifted by 180 degrees (that is, an average value), The data is stored in the RAM 212 as one data (hereinafter referred to as sample data) for calculating the RSSI fluctuation amount. The time when the phase is shifted 180 degrees with respect to a certain time corresponds to the time when half of the swing period Tswg has elapsed.

In FIG. 49, only the sample data calculated based on the RSSI at the time when the phase becomes 0 degree and 180 degrees is shown for convenience, but actually, as shown in FIG. What is necessary is just to calculate sample data also from RSSI.

In step S804, the RSSI fluctuation amount is calculated using the sample data (in other words, corrected RSSI) accumulated by executing step S803, and this flow ends.

<Summary of Modification 20>
In the above configuration, the possessing pattern is specified based on the output of the acceleration sensor provided in each of the vehicle portable device 200 and the portable terminal 300. And the portable device 200 for vehicles calculates RSSI variation | change_quantity using the value which correct | amended RSSI according to the possession form pattern, or RSSI collected in the predetermined strong situation. Thereby, the increase derived from the possession form pattern of the RSSI fluctuation amount calculated for the holder terminal can be suppressed. That is, the holder terminal can be identified with higher accuracy.

Claims (40)

An occupant information acquisition system including an on-vehicle device (100) mounted on a vehicle used by a plurality of users, and at least one vehicle portable device (200) associated with the on-vehicle device,
The in-vehicle device is
A vehicle-side transmission unit (130) for transmitting a predetermined signal from a plurality of transmission antennas for transmitting signals in a frequency band receivable by the vehicle portable device;
A vehicle-side receiving unit (120) for receiving a signal transmitted from the vehicle portable device via a receiving antenna;
By receiving response signals sent back from the vehicle portable device as responses to signals transmitted from the plurality of transmitting antennas, the portable device position where the vehicle portable device is located is specified. A portable device position specifying unit (F5),
The vehicle portable device is:
A first communication unit (220) that performs transmission and reception of signals with the on-vehicle device and, when receiving a signal transmitted from the on-vehicle device, returns the response signal to the received signal;
A second communication unit (230) for performing short-range wireless communication with each of a plurality of portable terminals carried by each of the plurality of users;
A received signal strength detector (233) for detecting a received signal strength of a signal received by the second communication unit from the portable terminal;
Based on the received signal strength detected by the received signal strength detecting unit, a holder terminal identifying unit that identifies the holder terminal that is the portable terminal carried by the user carrying the portable device for a vehicle ( G4), and
The first communication unit transmits holder information indicating the user of the holder terminal specified by the holder terminal specifying unit to the vehicle-mounted device,
The in-vehicle device further includes:
Based on the holder information transmitted from the vehicle portable device, the portable device holder that is the user holding the vehicle portable device is specified, and the portable device position specifying unit specifies An occupant information acquisition system comprising an occupant information acquisition unit (F6) that identifies a seating position of the portable device holder based on the portable device position. In claim 1,
Each of the plurality of transmitting antennas is provided at a position so that a transmission area is an area corresponding to each of the plurality of seats provided in the vehicle,
The vehicle-side transmission unit transmits a signal requesting a response to the vehicle portable device by shifting the timing in order from the plurality of transmission antennas,
The portable device position specifying unit specifies a transmission source antenna that is the transmission antenna that has transmitted a response signal from the vehicle portable device from the timing when the response signal is returned,
The occupant information acquisition unit is an occupant information acquisition system that employs a seat corresponding to a transmission area of the transmission source antenna as a seating position of the portable device holder. In claim 1 or 2,
The transmitting antenna is provided at each door corresponding to each of a plurality of seats provided in the vehicle,
The portable device position specifying unit includes:
When the vehicle-side receiving unit receives the response signal with respect to the signal transmitted from the driver's seat antenna that is the transmitting antenna having a certain area within the transmission area from the driver's door, the portable device position is While determining that it is around the driver's seat door,
When the vehicle-side receiving unit receives the response signal with respect to the signal transmitted from the passenger seat antenna, which is the transmitting antenna having a transmission area within a certain range from the passenger seat door, the position of the portable device is It is determined that the area is around the passenger seat door,
The occupant information acquisition unit
If the portable device position is determined by the portable device position specifying unit to be around the driver's seat door, the seating position is determined to be the driver's seat;
The occupant information acquisition system which determines that the seating position is the passenger seat when the portable device position is determined to be around the passenger seat door by the portable device position specifying unit. In any one of Claims 1-3,
The vehicle-side transmitter transmits a command signal for requesting to identify the holder terminal from the transmitting antenna,
The holder terminal specifying unit determines the holder terminal based on the received signal strength detected by the received signal strength detecting unit in a time zone determined with reference to a time point when the first communication unit receives the command signal. Occupant information acquisition system. In claim 4,
The received signal strength detection unit is configured to sequentially detect the received signal strength of a signal received from the mobile terminal in the time zone determined according to the reception time of the command signal,
The holder terminal specifying unit
Based on the received signal strength detected multiple times in the time zone, the degree of change in the received signal strength in the time zone is calculated for each portable terminal,
An occupant information acquisition system that determines the portable terminal with the smallest degree of change as the holder terminal. In claim 4,
The vehicle portable device determines, based on a signal transmitted from the vehicle-mounted device, whether the vehicle portable device exists outside the vehicle compartment or in the vehicle compartment,
A vehicle that stores the received signal strength detected by the received signal strength detector when the portable device for the vehicle is present outside the vehicle compartment, for each portable terminal, as reception strength information outside the vehicle compartment. An outdoor reception intensity storage unit (M1);
A vehicle that stores the received signal strength detected by the received signal strength detector when the portable device for a vehicle is present in the vehicle compartment, as vehicle interior received strength information, for each portable terminal. An indoor reception intensity storage unit (M2),
The holder terminal specifying unit
For each portable terminal, the vehicle interior representative value determined from the vehicle interior reception intensity information stored in the vehicle exterior reception intensity storage unit, and the vehicle interior reception intensity information stored in the vehicle interior reception intensity storage unit. Each vehicle interior representative value determined from
The occupant information acquisition system which employ | adopts the said portable terminal as which the said vehicle interior representative value is larger than the said vehicle exterior representative value among the said some portable terminals as a candidate of the said holder | retainer terminal. In claim 6,
The vehicle is provided with, as the transmitting antenna, a vehicle exterior antenna with a vehicle exterior as a transmission area and a vehicle interior antenna with a vehicle interior as a transmission area,
When transmitting a signal from the vehicle interior antenna, the vehicle side transmission unit transmits a signal including identification information indicating that the signal is transmitted outside the vehicle interior, while the vehicle interior antenna transmits the signal. In the case of transmitting a signal, a signal including identification information indicating that the signal is transmitted toward the passenger compartment,
The vehicle portable device is an occupant information acquisition system that determines whether or not the vehicle portable device exists in a vehicle interior based on the identification information included in the received signal. In claim 6 or 7,
The received signal strength detection unit is configured to sequentially detect the received signal strength of a signal received from the mobile terminal sequentially in the time period determined according to the reception time of the command signal,
When the command signal is received when it is determined that the vehicular portable device exists outside the vehicle compartment, the outside reception intensity storage unit is determined based on the reception time of the command signal. The reception signal strength detected by the reception signal strength detection unit a plurality of times in a band is stored for each portable terminal as the reception strength information outside the vehicle compartment,
The holder terminal specifying unit
For each portable terminal, the degree of change in the received signal strength stored in the outside reception strength storage unit is calculated,
Of the calculated degrees of change for each mobile terminal, if the difference between the minimum value and the second smallest value is less than a predetermined divergence threshold, the vehicle interior representative value is determined from the vehicle interior representative value for each mobile terminal. Calculate the amount of change inside and outside the vehicle by subtracting the representative value,
The occupant information acquisition system which determines that the said portable terminal with which the said vehicle interior and exterior variation | change_quantity is the maximum is the said holder terminal. In claim 8,
When the difference between the minimum value and the second smallest value is equal to or greater than the deviation threshold in the degree of change for each portable terminal determined from the received signal strength stored in the outside reception strength storage unit, An occupant information acquisition system that determines that the portable terminal with the smallest degree of change is the holder terminal. In any one of Claim 6 to 9,
The holder terminal specifying unit
When the representative value outside the vehicle interior for each portable terminal is less than a predetermined reception intensity threshold, the change amount outside the vehicle interior is obtained by subtracting the vehicle exterior representative value from the vehicle interior representative value for each portable terminal. And the occupant information acquisition system that determines that the portable terminal having the maximum amount of change outside the vehicle interior is the holder terminal. In claim 6 or 7,
The received signal strength detection unit is configured to sequentially detect the received signal strength of a signal received from the mobile terminal sequentially in the time period determined according to the reception time of the command signal,
When the command signal is received when it is determined that the vehicular portable device exists outside the vehicle compartment, the outside reception intensity storage unit is determined based on the reception time of the command signal. The reception signal strength detected by the reception signal strength detection unit a plurality of times in a band is stored for each portable terminal as the reception strength information outside the vehicle compartment,
The holder terminal specifying unit
When there is the mobile terminal in which the representative value outside the vehicle compartment is equal to or greater than a predetermined direct possession threshold, the degree of change in the received signal strength stored in the outside reception strength storage unit for each mobile terminal is calculated. Calculate
The occupant information acquisition system which determines that the said portable terminal with the said least change degree is the said holder terminal among the said portable terminals in which the said vehicle exterior representative value is more than the said direct possession threshold value. In any one of Claims 4-11,
The vehicle portable device is:
The first communication unit transmits occupant information indicating the user corresponding to the portable terminal existing around the portable device for the vehicle to the on-vehicle device based on a request from the on-vehicle device,
The occupant information acquisition unit specifies the user as an occupant in the current trip based on the occupant information, and the seating position of the user for which the seating position is not specified is a seat for which the seated passenger is not yet specified. An occupant information acquisition system that determines to be either. In any one of Claims 1-12,
If the seat specified as the seating position of the portable device holder is other than the driver's seat, among the users, the driver candidate that displays the user whose seating position is not specified as a driver candidate on the display A crew information acquisition system provided with a presentation processing part (F7). In claim 4,
The vehicle portable device includes a frequency characteristic analysis unit (G7) that executes a frequency characteristic analysis process for analyzing a frequency characteristic included in waveform data indicating a change over time of the received signal strength of a signal received from the portable terminal. Prepared,
The frequency characteristic analysis unit executes the frequency characteristic analysis processing for each of the plurality of mobile terminals,
The occupant information acquisition unit acquires the occupant information to determine, as the holder terminal, the portable terminal in which the frequency component corresponding to the hand movement motion associated with walking is detected by the frequency characteristic analysis unit among the plurality of portable terminals. system. In claim 14,
The frequency characteristic analysis unit performs the frequency characteristic analysis processing a plurality of times for each portable terminal,
The occupant information acquisition unit is an occupant information acquisition system that determines, from among a plurality of the mobile terminals, the mobile terminal that has the highest number of times that a frequency component corresponding to the hand movement is detected as the holder terminal. In claim 4 or 5,
The vehicle-mounted device includes a transmission processing unit (F1) that periodically transmits a signal from the vehicle-side transmission unit at a predetermined cycle,
The vehicle portable device is:
A vehicle signal strength detector (2221) for detecting the received strength of the signal transmitted from the vehicle-mounted device;
A position change determination unit (G8) that determines whether or not the position of the vehicle portable device with respect to the vehicle has changed based on whether or not the reception intensity detected by the vehicle signal strength detection unit has changed over time. ) And
The holder terminal specifying unit is configured to use the position change determination unit to detect the vehicle out of the received signal strength detected by the received signal strength detection unit in a time zone determined with reference to a time point when the first communication unit receives the signal. An occupant information acquisition system that determines the holder terminal using the received signal strength acquired while it is determined that the position of the portable device for the vehicle is changing. An occupant information acquisition system including an on-vehicle device (100) mounted on a vehicle used by a plurality of users, and at least one vehicle portable device (200) associated with the on-vehicle device,
The in-vehicle device is
A vehicle-side transmission unit (130) for transmitting a predetermined signal from a plurality of transmission antennas for transmitting signals in a frequency band receivable by the vehicle portable device;
A vehicle-side receiving unit (120) that receives a signal transmitted from the vehicle portable device via a receiving antenna;
The vehicle portable device is:
A first communication unit (220) that performs transmission and reception of signals with the vehicle-mounted device and returns a response signal to the received signal when a signal transmitted from the vehicle-mounted device is received;
A second communication unit (230) for performing short-range wireless communication with each of a plurality of portable terminals carried by each of the plurality of users;
A detection result for the state quantity is obtained from a device that detects a predetermined state quantity that changes due to a behavior of a portable device holder who is the user carrying the portable device for the vehicle. A state quantity acquisition unit (G6, G9, G10) to be stored in a storage medium,
Each of the portable terminals is state quantity history data representing the history of the state quantity acting on the portable terminal, or predetermined processing generated by executing predetermined arithmetic processing on the state quantity history data. Configured to transmit the completed state quantity data to the vehicle portable device as behavior notification data,
The vehicle portable device is based on the behavior notification data transmitted from each of the plurality of portable terminals, and the state amount history of the vehicle portable device acquired by the state amount acquisition unit, A holder terminal specifying unit (G4) for specifying a holder terminal that is the portable terminal carried by the portable device holder;
The first communication unit transmits holder information indicating the user of the holder terminal specified by the holder terminal specifying unit to the vehicle-mounted device,
The on-vehicle device is an occupant information acquisition system including an occupant information acquisition unit (F6) that identifies the portable device holder based on the holder information transmitted from the vehicle portable device. In claim 17,
The vehicle portable device includes an acceleration information acquisition unit that acquires information indicating acceleration acting on the vehicle portable device as the state quantity acquisition unit, and stores the information in the storage medium.
The portable terminal transmits acceleration history data indicating a history of acceleration acting on the portable terminal or the processed state quantity data determined from the acceleration history data to the vehicle portable device as the behavior notification data. ,
The holder terminal specifying unit specifies the holder terminal based on the behavior notification data from the portable terminal and a history of acceleration acting on the vehicle portable device acquired by the state quantity acquiring unit. Crew information acquisition system. In claim 18,
The holder terminal specifying unit specifies, for each portable terminal, a predetermined index state quantity indicating the behavior of the user carrying the portable terminal based on the behavior notification data provided from the portable terminal,
Calculating the index state quantity for the portable device holder based on the history of acceleration acting on the vehicle portable device;
By comparing the indicator state quantity specified for each of a plurality of the mobile terminals and the indicator state quantity of the portable device holder, the holder terminal is specified,
The occupant information acquisition system, wherein the index state quantity is one of a walking rhythm, a walking speed, a stride, and a moving distance per fixed time. In claim 17,
The vehicle portable device includes a position information acquisition unit that acquires position information indicating a current position of the vehicle portable device as the state quantity acquisition unit, and stores the position information in the storage medium.
The portable terminal transmits position history data indicating a history of the position of the portable terminal to the portable device for a vehicle as the behavior notification data,
The holder terminal specifying unit is configured to perform the holding based on the position history data provided as the behavior notification data from the portable terminal and the history of the position of the portable device for the vehicle acquired by the state quantity acquiring unit. A passenger information acquisition system that identifies passenger terminals. In claim 20,
The holder terminal specifying unit compares the position history data for each portable terminal with the position history of the vehicle portable device, and is present at a position closest to the vehicle portable device at a predetermined time point. An occupant information acquisition system that determines the portable terminal as the holder terminal. In claim 20,
The holder terminal specifying unit is a distance between the portable terminal and the vehicle portable device for each portable terminal based on the position history data for each portable terminal and the position history of the vehicle portable device. Identify the transition level of the distance between devices,
An occupant information acquisition system that determines the portable terminal with the lowest transition level of the distance between terminals as the holder terminal. In any one of Claims 17 to 22,
The in-vehicle device is
By receiving a response signal returned from the vehicle portable device as a response to the signals transmitted from the plurality of transmission antennas by the vehicle-side transmission unit, the vehicle portable device is located at a position where the vehicle portable device is present. A portable device position specifying unit (F5) for specifying a portable device position;
The occupant information acquisition unit is an occupant information acquisition system that specifies a seating position of the portable device holder based on the portable device position specified by the portable device position specifying unit. 24. Any one of claims 1 to 23.
The holder terminal specifying unit
Based on the communication status of the second communication unit, the number of the mobile terminal that exists in the vicinity of the portable device for vehicles,
The occupant information acquisition system which determines the said portable terminal to the said holder | retainer terminal, when the number of the said portable terminals which exist around the said portable device for vehicles is one. In claim 1,
The plurality of transmitting antennas are provided so that a region corresponding to each of a plurality of seats provided in the vehicle is a transmission area,
The vehicle-side transmission unit transmits a signal requesting a response to the vehicle portable device by shifting the timing in order from the plurality of transmission antennas,
The portable device position specifying unit specifies a transmission source antenna that is the transmission antenna that has transmitted a response signal from the vehicle portable device from the timing when the response signal is returned,
The occupant information acquisition unit is an occupant information acquisition system that employs a seat corresponding to a transmission area of the transmission source antenna as a seating position of the portable device holder. In claim 1 or 25,
The transmitting antenna is provided at each door corresponding to each of a plurality of seats provided in the vehicle,
The portable device position specifying unit includes:
When the vehicle-side receiving unit receives the response signal with respect to the signal transmitted from the driver's seat antenna that is the transmitting antenna having a certain area within the transmission area from the driver's door, the portable device position is While determining that it is around the driver's seat door,
When the vehicle-side receiving unit receives the response signal with respect to the signal transmitted from the passenger seat antenna, which is the transmitting antenna having a transmission area within a certain range from the passenger seat door, the position of the portable device is It is determined that the area is around the passenger seat door,
The occupant information acquisition unit
If the portable device position is determined by the portable device position specifying unit to be around the driver's seat door, the seating position is determined to be the driver's seat;
The occupant information acquisition system which determines that the seating position is the passenger seat when the portable device position is determined to be around the passenger seat door by the portable device position specifying unit. In any one of Claims 1, 25, and 26,
The vehicle-side transmitter transmits a command signal for requesting to identify the holder terminal from the transmitting antenna,
The holder terminal specifying unit determines the holder terminal based on the received signal strength detected by the received signal strength detecting unit in a time zone determined with reference to a time point when the first communication unit receives the command signal. Occupant information acquisition system. In claim 27,
The received signal strength detection unit is configured to sequentially detect the received signal strength of a signal received from the mobile terminal in the time zone determined according to the reception time of the command signal,
The holder terminal specifying unit
Based on the received signal strength detected multiple times in the time zone, the degree of change in the received signal strength in the time zone is calculated for each portable terminal,
An occupant information acquisition system that determines the portable terminal with the smallest degree of change as the holder terminal. In claim 27,
The vehicle portable device is:
Based on a signal transmitted from the vehicle-mounted device, a function of determining whether the own device as the vehicle portable device exists outside the vehicle compartment or the vehicle interior of the vehicle,
Outside reception strength storage unit (M1) for distinguishing and storing the received signal strength detected by the received signal strength detection unit for each portable terminal as outside reception strength information when the own device is outside the cabin. When,
Vehicle interior reception in which the received signal strength detected by the received signal strength detection unit is distinguished and stored for each mobile terminal as vehicle interior received strength information when the portable device for the vehicle is present in the vehicle interior. An intensity storage unit (M2),
The holder terminal specifying unit
For each portable terminal, the vehicle interior representative value determined from the vehicle interior reception intensity information stored in the vehicle exterior reception intensity storage unit, and the vehicle interior reception intensity information stored in the vehicle interior reception intensity storage unit. Each vehicle interior representative value determined from
The occupant information acquisition system which employ | adopts the said portable terminal as which the said vehicle interior representative value is larger than the said vehicle exterior representative value among the said some portable terminals as a candidate of the said holder | retainer terminal. In claim 29,
The vehicle is provided with, as the transmitting antenna, a vehicle exterior antenna with a vehicle exterior as a transmission area and a vehicle interior antenna with a vehicle interior as a transmission area,
When transmitting a signal from the vehicle interior antenna, the vehicle side transmission unit transmits a signal including identification information indicating that the signal is transmitted outside the vehicle interior, while the vehicle interior antenna transmits the signal. In the case of transmitting a signal, a signal including identification information indicating that the signal is transmitted toward the passenger compartment,
The vehicle portable device is an occupant information acquisition system that determines whether or not the vehicle portable device exists in a passenger compartment based on the identification information included in a received signal. In claim 29 or 30,
The received signal strength detection unit is configured to sequentially detect the received signal strength of a signal received from the mobile terminal sequentially in the time period determined according to the reception time of the command signal,
The reception intensity storage unit outside the vehicle compartment receives the command signal in a situation where the own aircraft is outside the vehicle compartment, and the reception signal strength detection unit in the time zone determined based on the reception time of the command signal Stores the received signal strength detected multiple times for each portable terminal as the vehicle exterior received strength information,
The holder terminal specifying unit
For each portable terminal, the degree of change in the received signal strength stored in the outside reception strength storage unit is calculated,
Of the calculated degrees of change for each mobile terminal, if the difference between the minimum value and the second smallest value is less than a predetermined divergence threshold, the vehicle interior representative value is determined from the vehicle interior representative value for each mobile terminal. Calculate the amount of change inside and outside the vehicle by subtracting the representative value,
An occupant information acquisition system that determines that the portable terminal having the largest amount of change in the vehicle interior / exit is the holder terminal. In claim 31,
When the difference between the minimum value and the second smallest value is equal to or greater than the deviation threshold in the degree of change for each portable terminal determined from the received signal strength stored in the outside reception strength storage unit, An occupant information acquisition system that determines that the portable terminal with the smallest degree of change is the holder terminal. In any one of claims 29 to 32,
The holder terminal specifying unit
When the representative value outside the vehicle interior for each portable terminal is less than a predetermined reception intensity threshold, the change amount outside the vehicle interior is obtained by subtracting the vehicle exterior representative value from the vehicle interior representative value for each portable terminal. The occupant information acquisition system that calculates the mobile terminal and determines that the portable terminal having the largest amount of change outside the vehicle is the holder terminal. In claim 29 or 30,
The received signal strength detection unit is configured to sequentially detect the received signal strength of a signal received from the mobile terminal sequentially in the time period determined according to the reception time of the command signal,
The reception intensity storage unit outside the vehicle compartment receives the command signal in a situation where the own aircraft is outside the vehicle compartment, and the reception signal strength detection unit in the time zone determined based on the reception time of the command signal Stores the received signal strength detected multiple times for each portable terminal as the vehicle exterior received strength information,
The holder terminal specifying unit
When there is the portable terminal whose outside representative value is greater than or equal to a predetermined direct possession threshold, the degree of change in the received signal strength stored in the outside reception intensity storage unit is calculated for each portable terminal And
The occupant information acquisition system which determines that the said portable terminal with the said least change degree is the said holder terminal among the said portable terminals in which the said vehicle exterior representative value is more than the said direct possession threshold value. In any one of Claims 27 to 34,
The first communication unit transmits occupant information indicating the user corresponding to the portable terminal existing around the portable device for the vehicle to the on-vehicle device based on a request from the on-vehicle device,
The occupant information acquisition unit specifies the user as an occupant in the current trip based on the occupant information, and the seating position of the user for which the seating position is not specified is a seat for which the seated passenger is not yet specified. An occupant information acquisition system that determines to be either. 36. In any one of claims 1, 25 to 35,
When the seat specified as the seating position of the portable device holder is other than the driver's seat, the in-vehicle device displays the user whose seating position is not specified among the users as a driver candidate. An occupant information acquisition system including a driver candidate presentation processing unit (F7) to be displayed on the vehicle. In claim 27,
The portable device for a vehicle includes a portable device-side acceleration sensor (250) that is an acceleration sensor that detects acceleration acting on the portable device for the vehicle,
Each of the plurality of mobile terminals includes a terminal-side acceleration sensor (330) that is an acceleration sensor that detects an acceleration acting on itself.
The vehicle portable device is:
Based on the output value of the portable device-side acceleration sensor, the own device possessing form identifying unit (G71) for identifying the possessing form of the vehicle portable device by the portable device holder;
Based on the output value of the terminal-side acceleration sensor included in the target terminal that is the portable terminal to be processed, the other-device possession form identifying unit (G72) that identifies the possession form of the target terminal by the user, Prepared,
The holder terminal specifying unit
Received signal strength obtained by correcting the received signal strength of the signal from the target terminal according to the combination of the respective portable forms of the vehicle portable device and the target terminal, or the vehicle portable device and the target Using the received signal strength obtained in the situation determined from the combination of each possessing form of the terminal, the degree of change in the received signal strength for the target terminal is calculated,
An occupant information acquisition system that determines, as the holder terminal, the portable terminal having the smallest degree of change among the plurality of portable terminals. In claim 37,
The portable device for a vehicle includes a walking determination unit (G8) that determines whether or not the portable device holder is walking from an output value of the portable device-side acceleration sensor. Whether or not the vehicle portable device is carried in a form in which acceleration associated with the movement of the trunk of the portable device holder acts on the vehicle portable device is set as an output value of the portable device-side acceleration sensor. Judgment based on,
The other-device possession form specifying unit is configured to allow the target terminal to carry the terminal in a form in which acceleration in conjunction with the movement of the trunk of the terminal owner who is the user holding the target terminal acts on the target terminal. Whether or not it is possessed by a person based on the output value of the terminal side acceleration sensor,
The holder terminal specifying unit is configured such that the vehicle-owned portable device and the target terminal are both linked to the movement of the owner's trunk by the own-device-owning-type specifying unit and the other-device-owning-type specifying unit. If it is determined that the portable device holder is in a form that acts on the device, the received signal strength detection unit obtains while the walking determination unit determines that the portable device holder is walking. An occupant information acquisition system that calculates the degree of change for the target terminal using the received signal strength of the signal from the target terminal as a population. In claim 37 or 38,
Comparing the output value of the mobile device side acceleration sensor and the output value of the terminal side acceleration sensor, and comprising an acceleration tendency determination unit (G9) for determining whether or not the time changes of the respective output values match,
The holder terminal specifying unit
When it is determined by the acceleration tendency determination unit that the time changes in the output values of the acceleration sensors of the respective devices match, the output values of the portable device-side acceleration sensor and the terminal-side acceleration sensor are further predetermined. When a gap equal to or greater than the threshold value occurs, a representative value of the received signal strength in each time zone before and after the output difference period, which is the period in which the gap occurs, is calculated.
An offset amount that is a value obtained by subtracting a representative value before the output difference period from a representative value after the output difference period,
The occupant information acquisition system which calculates the said change degree about the said target terminal using the value which subtracted the said offset amount with respect to the received signal strength of the signal from the said target terminal acquired after the said output difference period. 40. In any one of claims 37 to 39,
The self-portrait possessing form specifying unit is configured such that the vehicle portable device has an acceleration that is linked to movement of an upper limb or a trunk of the portable device holder as a holder of the vehicle portable device. Is determined based on the time change of the output value of the mobile device side acceleration sensor,
The other-device possession form specifying unit is configured such that acceleration in conjunction with movement of either the upper limb or the trunk of the terminal owner who is the user as the owner of the target terminal acts on the target terminal. Is specified by the terminal holder based on the time change of the output value of the terminal-side acceleration sensor,
Either the portable device for the vehicle or the target terminal is held in a form in which acceleration associated with the movement of the upper limb of the owner acts by the own device possessing form identifying unit and the other device possessing form identifying unit. And the other is determined to be possessed in a form in which acceleration is applied in conjunction with the movement of the owner's trunk, among the portable device for vehicle and the target terminal. Based on the change over time of the output value of the acceleration sensor provided in the upper limb interlocking device, which is the device that is held in a form in which the acceleration interlocked with the movement of the upper limb of the person acts, the upper limb interlocking device has a predetermined cycle A swing state determination unit (G10) that determines whether or not
The holder terminal specifying unit, when it is determined by the swing state determining unit that the upper limb interlocking side device is being shaken at a predetermined period, the received signal strength acquired by the received signal strength detecting unit On the other hand, an occupant information acquisition system that calculates the degree of change using a value obtained by adding the received signal strength acquired at a timing shifted by half of the period from the acquisition time and dividing by two.

Images