JP2018121700A - ECG sensor, ECG data management system, and vehicle management system - Google Patents

Abstract

It is possible to collect electrocardiographic data of a vehicle driver and use it for vehicle management or the like with a simple configuration. A sensor unit including an electrode for detecting an electrocardiogram signal and configured to be detachable from a device operated by a person who is an electrocardiogram signal measurement target; and an analog from the electrode An electrocardiographic sensor comprising: an electrocardiographic sensor that receives an electrocardiogram signal, performs predetermined amplification and noise removal processing, converts the signal into a digital signal, and records it as electrocardiographic data; and a plurality of managements An electrocardiogram data storage unit that records electrocardiographic data collected in advance as a target electrocardiogram data as a target electrocardiogram, and compares the electrocardiogram data received from an electrocardiogram sensor with the standard electrocardiogram data. An electrocardiographic data management device having an electrocardiographic data processing unit configured to determine whether there is standard electrocardiographic data that matches the electrocardiographic data and to transmit the determination result to the electrocardiographic sensor ECG data management Stem. [Selection] Figure 13

Description

  The present invention relates to an electrocardiographic sensor, an electrocardiographic data management system, and a vehicle management system.

  Human biological information as ID information for identifying individuals in applications such as management of IT equipment such as cash machines (ATMs) and personal computers of financial institutions, and entry / exit management of buildings that require confidentiality Has come to be used. As biometric information, utilization of various information including fingerprints, voiceprints, iris patterns, finger vein patterns, etc. has been proposed and put into practical use. Since electrocardiographic data obtained by recording the electrical activity of the heart also has different patterns depending on the individual and can be used as personal identification ID information, various applications have been proposed.

  For example, Patent Document 1 discloses a non-invasive vehicle-mounted system that performs identification and customization based on ECG (electrocardiogram) data, monitors a driver's heart activity in the vehicle, and does not distract him. In this system, a means for searching a plurality of ECG traces is attached to one or a plurality of vehicle parts, and a sensor means for acquiring an electric signal generated by the driver's myocardium in real time, and a driver obtained from the ECG trace search means Means for extracting ECG features based on ECG data and temporarily registering an ECG trace in the binary codebook as a binary code sequence using a binary sequence codebook generation algorithm executed by the processor The binary code of the driver's ECG trace is compared with a sequence of binary codebooks registered using the steps of the nearest neighbor classifier algorithm executed by the processor to detect and allow the driver's ride The customization is started after checking the means and the driver's ECG characteristics and the binary codebook number sequence in which the binary code is registered. And a means for storing the preferences of the driver for customization in a vehicle (claim 1).

Special table 2012-533474 gazette

  According to the system disclosed in Patent Document 1, the driver detects the driver's boarding based on the binary code registered in advance from the ECG data acquired from the driver and permits the driver to customize the vehicle. It is assumed that a process for saving the user's preferences is executed.

  However, in the system exemplified in Patent Document 1, a noninvasive biosensor is disposed in the vehicle in order to monitor in real time an electrical signal generated in the driver's cardiac muscle. For this reason, in order to apply the system of patent document 1, the said biosensor must be installed in vehicles, such as a motor vehicle which is an application object. This means that if a company that owns and operates many vehicles such as trucks and buses, like the transportation industry, wants to introduce the system, it will install a new device such as a biosensor on each vehicle. Means that you have to pay a lot of initial installation costs. For this reason, it must be said that it is difficult for organizations such as transportation companies to introduce.

  The present invention has been made to solve the above and other problems, and collects electrocardiographic data with a simple configuration and uses the electrocardiographic data collected from the vehicle driver for vehicle management and the like. One object is to provide an electrocardiographic sensor, an electrocardiographic data management system, and a vehicle management system that enable the above.

In order to achieve the above and other objects, one aspect of the present invention provides a sensor unit including an electrode for detecting an electrocardiogram signal, which is an electrical signal generated by the heart, and the electrode of the sensor unit. An electrocardiographic sensor comprising: an electrocardiogram monitor unit which receives an analog electrocardiogram signal from a signal, executes predetermined amplification processing and noise removal processing, converts the analog signal into a digital signal, and records it as electrocardiographic data .
The sensor unit can be configured to be detachable from a device operated by a person who is a measurement target of the electrocardiogram signal.

  The sensor unit may include a flexible sheet member, the electrode attached to the sheet member, and an attachment / detachment unit that attaches / detaches the sheet member to / from the device. .

  The electrode may be attached to a seat belt of a vehicle worn by a person who is a measurement target, and configured to detect an electrocardiogram signal of the measurement target person in a non-contact manner as an electric field change.

The sensor unit may be configured to be provided on the clothing in a form such that the electrode is in close contact with the skin of a person on a part of the clothing worn directly by the person. The sensor unit is configured as a belt-like member provided with the electrode, and is arranged in a form in which the electrode is in close contact with the human skin in the vicinity of the heart when worn around the human torso. Also good.
The electrode of the sensor unit can be configured to amplify an electrocardiogram signal detected by the electrode, convert it into a digital signal, and transmit it as a radio signal.

  According to another aspect of the present invention, the electrocardiographic sensor, an electrocardiographic data storage unit that records electrocardiographic data previously collected from a plurality of persons to be managed as standard electrocardiographic data, and the electrocardiographic sensor. The ECG data received from the ECG data is compared with the standard ECG data recorded in the ECG data storage unit to determine whether there is standard ECG data that matches the ECG data. An electrocardiogram data management system comprising an electrocardiogram data management device having an electrocardiogram data processing unit configured to transmit to an electrosensor.

  When the electrocardiogram data processing unit of the electrocardiogram data management device determines that there is the standard electrocardiogram data that matches the electrocardiogram data acquired from the measurement target, the comparison result with the standard electrocardiogram data It can be configured to further determine whether the electrocardiographic data is normal and transmit the determination result to the electrocardiographic sensor.

  Still another embodiment of the present invention receives a determination result from the electrocardiographic sensor, the electrocardiographic data management device, and the electrocardiographic data management device, and the determination result matches the electrocardiographic data. A vehicle management system including a vehicle control device configured to enable the operation of the vehicle when the standard electrocardiographic data is information indicating the presence.

  When the electrocardiogram data processing unit of the electrocardiogram data management device determines that there is the standard electrocardiogram data that matches the electrocardiogram data acquired from the measurement target, the comparison result with the standard electrocardiogram data It is configured to further determine whether the electrocardiographic data is normal, and to transmit the determination result to the electrocardiographic sensor. When the vehicle control device is information indicating that the determination result is not normal, the operation of the vehicle Can be configured to be disabled.

  According to the present invention, an electrocardiographic sensor and an electrocardiographic data management system that can collect electrocardiographic data with a simple configuration and use the electrocardiographic data collected from a vehicle driver for vehicle management and the like. And a vehicle management system.

FIG. 1 is a diagram illustrating a configuration example of an electrocardiographic sensor according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a configuration example of the electrode sheet 100 of the electrocardiographic sensor. FIG. 3 is a diagram illustrating a configuration example of the electrode sheet 100 of the electrocardiographic sensor. FIG. 4 is a diagram showing a modification of the electrocardiographic sensor of FIG. FIG. 5 is a diagram illustrating another configuration example of the electrocardiographic sensor. FIG. 6A is a diagram illustrating an electrocardiographic sensor configured in combination with clothing. FIG. 6B is a diagram illustrating a configuration example of an electrocardiographic sensor formed in a belt shape. FIG. 7 is a diagram illustrating a configuration example of the monitor unit 200 of the electrocardiographic sensor. FIG. 8 is a diagram illustrating another configuration example of the electrode unit. FIG. 9 is a diagram illustrating a configuration example of ID information used by the electrocardiographic sensor. FIG. 10 is a diagram illustrating a configuration example of the electrocardiogram data management apparatus 400. FIG. 11 is a diagram illustrating a configuration example of the electrocardiogram data storage unit 423. FIG. 12 is a diagram showing an example of the overall configuration of the electrocardiogram data management system 1 of the present embodiment. FIG. 13 is a flowchart illustrating an example of a data processing flow by the monitor unit 200.

  Hereinafter, the present invention will be described with reference to the drawings in accordance with an embodiment thereof.

ECG sensor 10
First, an electrocardiographic sensor 10 according to an embodiment of the present invention will be described. A configuration example of the electrocardiographic sensor 10 is shown in FIG. The electrocardiographic sensor 10 shown in FIG. 1 is applied to a steering wheel 50 of an automobile. The steering wheel 50 has a substantially circular shape, and is connected to a steering shaft (not shown) by a substantially T-shaped spoke 55.

  The electrode sheet 100 (sensor unit) is wound around each of the four annular portions of the steering wheel 50. A monitor unit 200 (electrocardiographic monitor unit) is fixed to two portions of the spoke 55 at the diameter direction of the steering wheel 50 by two bands 250.

  FIG. 2 and FIG. 3 show configuration examples of the electrode sheet 100. FIG. 2 shows the front side of the electrode sheet 100, and FIG. 3 shows the back side of the electrode sheet 100. The electrode sheet 100 is configured by providing an electrode 120 on the front side of the sheet member 110. The sheet member 110 is a sheet formed of a synthetic fiber or the like having sufficient flexibility that can be wound around an annular portion of the steering wheel 50. A joint portion 130 (detachable portion) for winding the seat member 110 around the steering wheel 50 and fixing the seat member 110 around the annular portion of the steering wheel 50 when the seat member 110 is wound is, for example, It is provided in the form of a hook-and-loop fastener.

  On the front side of the sheet member 110, the electrodes 120 are provided as three rows of electrode strips 120 </ b> A, 120 </ b> B, 120 </ b> C by being adhered to the sheet member 110. The electrode strips 120A, 120B, and 120C are elongated thin plates formed of a conductive material such as metal. As shown in FIG. 3, the electrode strips 120 </ b> A, 120 </ b> B, 120 </ b> C are connected to each other by a conductive connection plate 120 </ b> D on the back side of the sheet member 110. A lead wire 140 is drawn out from the connection plate 120D, and a connection terminal 150 is provided at its free end.

  Instead of providing the electrode strips 120A, 120B, 120C on the sheet member 110, other configurations such as forming the sheet member 110 with conductive fibers may be used, and the electrode 120 may also be realized by other appropriate configurations. . It should be noted that a rubber layer or a silicon layer can be provided on the back side of the sheet member 110 to prevent slippage when wound around the steering wheel 50.

  The connection terminal 150 is provided to connect the electrode 120 to the internal circuit of the monitor unit 200 described later via the lead wire 140. The form of the connection terminal 150 can be appropriately determined according to the configuration of the connection portion of the monitor unit 200 that is the connection destination.

  According to the electrocardiographic sensor 10 having the above configuration, when the driver grips the steering wheel 50 of the vehicle to be applied, the driver's right hand and left hand are in contact with different electrode sheets 100, and the respective electrode strips. It becomes conductive with 120A, 120B, 120C. Thus, the electrocardiogram measurement with the driver's heart sandwiched between (driver's left hand)-(one electrode sheet 100)-(monitor unit 200)-(other electrode sheet 100)-(driver's right hand). A circuit can be constructed.

  FIG. 4 shows another embodiment of an electrocardiographic sensor using a vehicle steering wheel. In the configuration example of FIG. 4, a pair of left and right electrode portions 100A are integrally provided on a steering wheel 50 formed of resin or the like. The electrode portion 100A can be arranged in an appropriate shape using an appropriate conductive material at a position where it will be naturally touched by the left and right hands of the driver. A monitor unit 200 having the same configuration as that of the embodiment of FIG. 1 is embedded in the hub portion of the steering wheel 50, and is electrically connected to each electrode portion 100A by a conductor L. The monitor unit 200 may be attached to the surface of the steering wheel 50 as in the case of FIG. Also according to the modification illustrated in FIG. 4, the same operation and effect as the electrocardiographic sensor 10 of FIG. 1 can be obtained.

  FIG. 5 shows another form of the electrocardiographic sensor 10. The electrocardiographic sensor 10 of FIG. 5 is configured using a seat belt 300 that is always worn while the driver is on the vehicle. The electrocardiographic sensor 10 includes a monitor unit 200 and electrocardiographic signal pickups 320A to 320C. The monitor unit 200 of FIG. 5 accommodates a mechanism and a circuit for realizing a function such as electrocardiogram measurement, and is communicably connected to electrocardiogram signal pickups 320A to 320C described later. The wireless connection configuration will be described later. Since the seat belt 300 is usually stored so as to be caught on the vehicle body side when not in use, when the monitor unit 200 is attached to the seat belt 300 itself as shown in FIG. Is configured as a sheet-like or chip-like circuit module that can be bent and stretched. Of course, the monitor unit 200 may be provided on a member of the vehicle body other than the seat belt 300 within a range in which communication with the electrocardiogram signal pickups 320A to 320C is possible.

  As illustrated in FIG. 5, the ECG signal pickups 320 </ b> A to 320 </ b> C are provided on the seat belt 300 so as to be appropriately arranged with respect to the position of the heart of the driver or the like. Since the seat belt 300 is worn from above the clothes, the ECG signal pickups 320A to 320C in FIG. 5 are preferably sensors that can detect the ECG signal of the driver or the like as a change in electric field strength in a non-contact manner. Used for. In addition, instead of or in addition to the electrocardiogram signal pickups 320A to 320C, a temperature sensor may be provided so that the monitor unit 200 can measure the body temperature. Alternatively, the blood pressure and heart rate may be detected by the monitor unit 200 by indirectly detecting the contraction and expansion of blood vessels in the body.

  6A and 6B show other application configuration examples of the electrocardiographic sensor 10. First, in the example of FIG. 6A, a ring-shaped portion 330 made of, for example, a stretchable fiber is provided around the chest of the running shirt S, which includes the heart. At least two electrodes 330 </ b> A are arranged on the ring-shaped portion 330 at an appropriate distance in the circumferential direction so as to sandwich the position of the heart. Specifically, the electrode 330 </ b> A is fixed to the side of the ring-shaped portion 330 that contacts the user's skin by an appropriate method.

  The annular zone 330 is provided with a pocket P in which the main body 201 of the monitor unit 200 can be stored. Each electrode 330 </ b> A and the main body 201 can be electrically connected by arranging, for example, a conductive pattern that connects the corresponding section in the ring-shaped portion 330. The conductive pattern can be configured by embedding a band-shaped pattern made of conductive fibers in a part of the ring-shaped portion 330 in advance. Connection between the main body 201 and a conductive pattern (not shown) can be easily realized by the snap structure described with reference to FIG.

  The configuration of the application example in FIG. 6A can also be applied to other clothing items, for example, sports clothing items such as sports bras, and other clothing items such as socks. In the case of socks, a ring-shaped part 330 is usually provided around an opening containing rubber, and an electrode 330A is arranged on the ring-shaped part 330. If the ring-shaped part 330 is configured to be removable from the sock body, there is no possibility of damaging the electrode 330A disposed on the ring-shaped part 330 during washing.

  In the configuration example of FIG. 6A or the configuration in which the electrode 330A is disposed at a site away from the chest such as socks, it is difficult to electrically connect the electrode 330A and the main body 201 with a conductive wire or a conductive pattern. It is advantageous to provide an electrocardiographic signal amplification unit and a wireless transmission unit at 330A so as to be wirelessly connected to the main body 201. This wireless connection configuration will be described later.

  Next, FIG. 6B will be described. FIG. 6B shows an example in which the electrocardiographic sensor 10 is configured in a belt shape. The electrocardiographic sensor 10 of FIG. 6B has a long band-shaped member 350, and can be mounted around the chest of the user by a coupling member such as a hook-and-loop fastener 360 provided near both ends thereof. Has been. The belt-like member 350 can be made of, for example, a stretchable fiber such as a mesh fabric, a stretchable synthetic resin material, rubber, or the like. As the coupling member, an appropriate member such as a button or a snap button can be used in addition to the surface fastener. This makes it possible to measure electrocardiographic data without having a part of the body, such as a hand, in contact with an electrode, etc., so that the electrocardiographic data can always be measured without being affected by driving or work of the vehicle. become.

  The strip-shaped member 350 is provided with electrodes 370A to 370C in close contact with the user's skin. The electrode 370B is connected to the ground of the electrocardiogram measurement circuit, and is configured to detect an electrocardiogram signal with respect to the ground by the electrodes 370A and 370B. When the user wears the electrocardiographic sensor 10, the electrode 370 </ b> A is provided in the vicinity of the left side of the user's heart, and the electrode 370 </ b> C is provided on the right side of the user's heart. As the electrode body, a metal electrode, a synthetic resin having conductivity, a fiber, or the like can be used as appropriate. The arrangement of the electrodes 370 </ b> A to 370 </ b> C in the embodiment of FIG. 6B is adopted because it is effective for reducing noise of the electrocardiogram signal, but is not limited to such a configuration.

  As in the case of FIG. 6A, the band-shaped member 350 is provided with a pocket P in which the main body 201 of the monitor unit 200 can be stored. The electrodes 370 </ b> A to 370 </ b> C and the main body 201 can be electrically connected by arranging, for example, a conductive pattern that connects the corresponding section on the belt-shaped member 350. The conductive pattern can be configured by, for example, embedding a band-shaped pattern made of a conductive member in a part of the band-shaped member 350 in advance. Connection between the main body 201 and a conductive pattern (not shown) can be easily realized by the snap structure described with reference to FIG.

  6A and 6B, the monitor unit 200 can measure the body temperature by providing a temperature sensor instead of or in addition to the electrodes 330A and 370A to 370C. It may be. Alternatively, the blood pressure and heart rate may be detected by the monitor unit 200 by indirectly detecting the contraction and expansion of blood vessels in the body.

Monitor unit 200
Next, the monitor unit 200 of this embodiment will be described. FIG. 7 shows a configuration example of the monitor unit 200. As shown in FIG. 7, the monitor unit 200 includes an insulation amplification unit 210, a communication interface (communication I / F) 220, a calculation unit 230, and an input / display unit 240.

  The insulation amplification unit 210 receives a weak electrocardiogram signal (in mV order) of a wearer such as a driver from the electrode 120 of the electrode sheet 100 or the electrode 320 of the electrode band 300 through an insulation circuit with an internal circuit such as capacitive coupling. This is a circuit unit that performs signal processing such as fluctuation noise peculiar to bioelectric potential called baseline fluctuation, signal amplification by a non-inverting amplifier or the like, and conversion to a signal that falls within the input voltage range (0 to 5 V) of a subsequent AD converter. is there. The specific circuit configuration of the insulation amplifying unit 210 may be any configuration as long as the above functions can be realized.

  The communication I / F 220 sends out electrocardiographic data, which will be described later, to a communication network such as a wired, wireless LAN, or the Internet, and receives a data from these communication networks, or for example, IEEE802.15.1 standard proximity communication module that performs communication with nearby external devices. The communication I / F 220 can communicate with a control unit such as an engine control unit (ECU) on the vehicle side, and enables vehicle control and vehicle management based on electrocardiographic data.

  The arithmetic unit 230 can be configured as, for example, a microcomputer including a memory that is a data storage area and some processor having a data processing function as hardware. In the present embodiment, the arithmetic unit 230, the electrocardiographic data, A program as each functional block of the generation unit 232, the ID information storage unit 233, the electrocardiogram data processing unit 234, and the data input / output unit 235 is included.

  The waveform conversion unit 231 has a function of an AD converter that performs an appropriate sampling process on the analog electrocardiogram waveform data received from the insulation amplification unit 210 and converts it into predetermined digital electrocardiogram data. The sampling frequency and sampling period for AD conversion can be determined as appropriate.

  The electrocardiogram data generation unit 232 has a function of generating electrocardiogram data in a predetermined format from the waveform data converted into a digital format by the waveform conversion unit 231. If a general-purpose format defined in, for example, MFER (Medical waveform Format Encoding Rules) is adopted as the digital data format after conversion, the availability of electrocardiographic data is advantageously increased.

  The ID information storage unit 233 includes a monitor unit ID that is an individual identification code of the monitor unit 200 in which the ID information storage unit 233 is included, a user ID described later, and a heart acquired from the electrode sheet 100 or the electrode band 300 to which the monitor unit 200 is connected. This is a storage area for storing electric data. A configuration example of the ID information is shown in FIG. In the ID information of FIG. 6, a plurality of electrocardiographic data repeatedly acquired with time is recorded.

The electrocardiographic data processing unit 234 has a function of executing various data processing using the acquired electrocardiographic data, for example, user identification processing, vehicle security control processing, etc. in cooperation with the electrocardiographic data management device 400 described later. .
The data input / output unit 235 has a function of performing data input / output processing through the communication I / F 220 and an input / display unit 240 described later.

  The input / display unit 240 is an input / output device that enables data input and data display output by the user. In this embodiment, since the monitor unit 200 is assumed to be a wristwatch-type wearable device, the input / display unit 240 is a combination of a touch panel that enables contact input using, for example, a stylus pen, and a liquid crystal display or an organic EL display. As realized. Although not shown in FIG. 7, the arithmetic unit 230 of the monitor unit 20 can be provided with functions such as a voice call and a clock other than the functions described in this embodiment. The input / display unit 240 may be omitted depending on specifications such as the shape and size required for the monitor unit 200.

  According to the monitor unit 200 having the above configuration, user electrocardiographic data can be acquired through sensors such as electrodes connected to the monitor unit 200 and used for various purposes.

  As described with reference to FIG. 5, the monitor unit 200 can be configured to receive the electrocardiographic signals acquired by the electrocardiographic pickups 320 </ b> A to 320 </ b> C by wireless communication. Further, as described in part with respect to the application example of the electrocardiographic sensor of FIG. 6A, the electrocardiogram signal measured by integrating the functional blocks of the insulation amplification unit 210 and the communication I / F 220 in FIG. Can be transmitted to the monitor unit 200 by wireless communication. In this case, the electrode 330A includes an electrode conductor 332, an insulation amplification unit 334, and a communication I / F 336 as shown in FIG. The electrode conductor 332 is a conductive member made of metal or the like that is in close contact with the skin to be measured in order to detect an electrocardiographic signal to be measured.

  More specifically, for example, the electrode conductor 332 is configured as a pair of electrode conductor pairs separated from each other, and a minute potential difference therebetween is input to an operational amplifier or the like of the insulation amplification unit 334 to perform differential amplification. can do. With such a configuration, the electrocardiogram signal (potential difference signal) detected by the electrode conductor 332 is amplified, shaped, AD-converted, and the like in the insulation amplification unit 334 as in the monitor unit 200 of FIG. The data is transmitted to the monitor unit 200 via the I / F 336. As the communication I / F 336, an IEEE802.15.1 standard proximity communication module or the like with low power consumption can be used. According to the electrode 330A having such a configuration, it is not necessary to wire-connect with the monitor unit 200, so the degree of freedom regarding the installation location of the electrode 330A with respect to the measurement target is increased. The electrode 330 </ b> A can be fixed to the human body by an appropriate method such as a method performed by adhering the electrode 330 </ b> A to a human skin through an adhesive material having conductivity. As for the monitor unit 200 combined with the electrode 330A, a mobile terminal such as a smartphone in which a proximity communication function capable of receiving a wireless electrocardiogram signal from the electrode 330A and an application which is required electrocardiogram signal processing software is installed is used. You can also. As described above with reference to the embodiment illustrated in FIG. 5, the electrocardiographic signal does not contact the electric field strength change on the human body surface due to the change of the electrocardiographic signal without bringing the electrode into contact with the human skin as described above. It is also possible to measure by detecting with. In this case, since the electrode does not need to be in close contact with the human body, for example, it can be measured from above the clothing of the seat belt wearer by being placed on the seat belt as described above. Increased freedom of configuration.

ECG data management device 400
Next, the electrocardiogram data management apparatus 400 will be described. The electrocardiogram data management apparatus 400 of this embodiment is connected to the monitor unit 200 via a communication network, and functions to manage electrocardiographic data collected from a user through the monitor unit 200 and perform various data processing using the same. A computer having FIG. 10 shows a configuration example of the electrocardiogram data management apparatus 400. As shown in FIG. 10, the electrocardiogram data management apparatus 400 includes a communication interface (communication I / F) 410, a management calculation unit 420, and an input / output device 430.

  The communication I / F 410 is a network interface card (NIC) or the like for transmitting / receiving the electrocardiogram data and the data processed by the electrocardiogram data management unit 422 to / from a communication network such as a wired or wireless LAN or the Internet. .

The management calculation unit 420 can be configured as a hardware, for example, including a memory that is a data storage area and some processor having a data processing function as hardware. In this embodiment, the management operation unit 420 includes a data input / output unit 421, a heart Each functional block (program) of the electrical data management unit 422 and an electrocardiogram data storage unit 423 are provided.
The data input / output unit 421 has a function of performing data input / output processing through the communication I / F 410 and an input / output device 430 described later.

  The electrocardiogram data management unit 422 uses reference electrocardiogram data stored in advance as described later and the electrocardiogram data acquired by the monitor unit 200 in cooperation with the electrocardiogram data processing unit 234 of the monitor unit 200. It has a function of executing various types of data processing such as user identification processing, vehicle security control processing, and psychosomatic state determination processing based on electrocardiographic data.

  The electrocardiogram data storage unit 423 stores a user ID of each user such as a vehicle driver managed by the electrocardiogram data management apparatus 400 and standard electrocardiogram data in association with each other. FIG. 8 shows a configuration example of the electrocardiogram data storage unit 423. In the example of FIG. 8, “Dref (U001)” is registered as the standard electrocardiographic data of the user specified by the user ID “U001”. In the electrocardiogram data storage unit 423, the monitor unit ID, which is the identification code of the monitor unit 200 used by the user, and the electrocardiographic data acquired by the corresponding monitor unit 200 are recorded in further correspondence with the user ID. ing.

The standard electrocardiographic data is electrocardiographic data acquired with an electrocardiograph or the like in advance for the user specified by the corresponding user ID, and fingerprints and finger vein patterns are used as biometric information for specifying the user. Used in the same way as data. For example, assuming that the user is a driver of a transport truck, the electrocardiographic data recorded repeatedly for a certain user is in the middle of a journey in which the monitor unit 200 identified by a certain monitor unit ID is mounted. Thus, it is collected a plurality of times at a predetermined time interval or the like and recorded in the electrocardiogram data storage unit 423.
The input / output device 430 includes input devices such as a keyboard, a mouse, and a touch panel, and output devices such as a display monitor and a speaker.

  According to the electrocardiogram data management apparatus 400 having the above-described configuration, processing such as user personal authentication and user psychosomatic state monitoring based on electrocardiogram data is executed based on the electrocardiogram data of each user collected from the monitor unit 200. can do.

Data Processing by ECG Data Management System Including Monitor Unit 200 and ECG Data Management Device 400 Next, the heart realized by ECG data management system 1 including monitor unit 200 and ECG data management device 400 described above. The electric data management processing will be described with reference to the overall system configuration diagram of FIG. 12 and a flowchart showing an example of the data processing flow of FIG. Here, it is assumed that the measurement target by the monitor unit 200 is a driver who drives the transport truck V. As shown in FIG. 12, the monitor unit 200 attached to the transport truck V is used for managing electrocardiographic data via a communication network 500 including a wired, wireless LAN, the Internet, a public telephone line, a mobile communication line, and the like. The apparatus 400 is connected to be communicable with each other. Between the monitor unit 200 and the communication network 500, a smart phone, a portable information terminal such as a laptop PC, various in-vehicle communication devices, and the like may be interposed.

  An electrode sheet 100 and a monitor unit 200 illustrated in FIG. 1 are attached to a transport truck on which a user is occupying. When the user sits in the driver's seat and holds the steering wheel 50 with both hands, the above-described electrocardiogram waveform measurement circuit is configured, and in the monitor unit 200, the electrocardiogram data generation unit 232 detects it and starts the processing of FIG. (S1010).

  In the monitor unit 200, an electrocardiogram data generation unit 232 generates electrocardiogram data based on an electrocardiogram signal from the electrode sheet 100, and an electrocardiogram data management device together with the monitor unit ID recorded in the ID information storage unit 233. 400 is transmitted (S1020).

  In the electrocardiogram data management apparatus 400, the electrocardiogram data management unit 422 compares the received electrocardiogram data with the standard electrocardiogram data recorded in the electrocardiogram data storage unit 423, and determines whether there is a matching electrocardiogram data. (S1030). At this time, the electrocardiogram data management unit 422 compares the electrocardiogram data to be determined with a state in which some abnormality, for example, a heart disease such as angina pectoris is suspected, and the heart rate is normal. It is also judged whether or not there is a state in which an abnormal state deviates from the range and the mind and body are extremely tense. The determination data serving as a criterion for such abnormality determination can be recorded in advance in the electrocardiogram data management unit 422.

As a result of comparing the electrocardiographic data to be determined with the standard electrocardiographic data, if it is determined that there is a matching standard electrocardiographic data and that there is no abnormality in the electrocardiographic data to be determined, the electrocardiographic data management device 400 The electrocardiogram data management unit 422 extracts the user ID corresponding to the electrocardiogram data from the electrocardiogram data storage unit 423, and together with the determination result that there is no abnormality in the electrocardiogram data, the monitor unit 200 that is the electrocardiogram data transmission source. Send to.
Upon receiving the user ID and the determination result, the monitor unit 200 records the user ID received by the electrocardiogram data processing unit in the ID information storage unit 233 (S1040).

  Since the driver's ID is confirmed and it is found that the driver does not find any abnormal point, the electrocardiogram data processing unit 234 of the monitor unit 200 thereafter controls the vehicle side control device, for example, the engine control unit ( The control permission information is transmitted to the vehicle control apparatus linked with the ECU) (S1050). As a result, the driver can start the vehicle engine and start the transportation work.

  After the start of the transportation operation, the electrocardiogram data generation unit 232 and the electrocardiogram data processing unit 234 of the monitor unit 200 acquire the driver's electrocardiogram data in a timely manner and transmit it to the electrocardiogram data management device 400 (S1060). In the electrocardiogram data management apparatus 400, the electrocardiogram data management unit 422 can determine whether or not there is an abnormality by comparing it with the driver's standard electrocardiogram data in a timely manner. If it is determined that there is an abnormality, the electrocardiogram data management unit 422 can instruct the monitor unit 200 to issue a predetermined alarm. This alarm will be described later.

  In particular, if no abnormality is found in the electrocardiogram data and the driver's crew is finished, the electrocardiogram data management process is also terminated in conjunction with an operation such as turning off the engine key switch (S1080).

  On the other hand, when the electrocardiogram data management unit 422 of the electrocardiogram data management apparatus 400 does not have standard electrocardiogram data that matches the electrocardiogram data to be determined in S1030, or a predetermined abnormality is recognized in the electrocardiogram data to be determined. When the determination is made, the electrocardiogram data management unit 422 issues an error notification to the monitor unit 200 (S1070). In the monitor unit 200, the electrocardiogram data processing unit 234 that has received the error notification outputs a message indicating that an error has been detected to the input / display unit 240 and ends the processing (S1080).

  Various forms of error notification output in the monitor unit 200 are possible. For example, it is conceivable to blink the display of the monitor unit 200 or display text, icons, etc. indicating abnormality. Alternatively, a voice output device is provided in the monitor unit 200, and voices such as “Driver ID cannot be confirmed. Please contact the administrator” or “An abnormality is recognized in the electrocardiogram data. Please contact the administrator”. It is also possible to output. Alternatively, the monitor unit 200 and a vehicle-side device such as a car navigation system may be connected by proximity communication so that the output function of these vehicle-side devices may be used.

  As described above, according to the electrocardiogram data management system of the present embodiment, since it is possible to identify the driver of a vehicle such as a transport truck or bus based on the electrocardiogram data, the vehicle operation management can be performed. It becomes possible to carry out more appropriately. Moreover, since the electrode sheet 300 for acquiring an electrocardiogram waveform can be easily attached to and detached from parts such as a steering wheel of a vehicle, the system can be easily introduced into an existing vehicle. Furthermore, by comparing the electrocardiographic data continuously acquired from the driver with the standard data, it is possible to easily detect abnormalities in the electrocardiographic data. Safety can be increased. In addition, when the electrocardiogram data management system detects an abnormality in the electrocardiogram data, an alarm can be sent to a mobile terminal such as a smartphone of the driver through a public telephone network or the like. In addition, when applied to a vehicle equipped with an automatic driving function, a driving support function, etc., when an abnormality is detected in the driver's electrocardiogram data, the vehicle is stopped under certain conditions. It is also possible to execute control such as stopping at the roadside or setting a destination such as a hospital for guidance.

In the above-described embodiment, the configuration in which the electrode sheet 100 used for the measurement of electrocardiographic data is attached to the steering wheel of an automobile such as a transportation truck is mainly described. However, the electrode sheet is not limited to this. The apparatus 100 can be applied to other vehicles and transportation equipment such as locomotives, train master controller handles and brake handles, aircraft control sticks and the like in conformity with the shape and dimensions thereof.
The technical scope of the present invention is not limited to the above-described embodiment, and other modifications, application examples, and the like are included within the scope of the matters described in the claims.

1 ECG Data Management System 10 ECG Sensor 50 Steering Wheel 55 Spoke 100 Electrode Sheet 110 Sheet Member 120, 320, 330A Electrode 120A, 120B, 120C, 320A, 320B Electrode Strip 120D Connection Plate 130 Joint 140 Lead Wire 150 Connection Terminal 200 Monitor Unit 201 Main Body 202 Connection Unit 210, 334 Insulation Amplification Unit 220, 336, 410 Communication Interface 230 Operation Unit 231 Waveform Conversion Unit 232 ECG Data Generation Unit 233 ID Information Storage Unit 234 ECG Data Processing Unit 235 Data Input / Output Unit 240 Input / Display Unit 250 Band 300 Seat Belt 310 Ring Member 330 Ring Zone Part 350 Band Members 370A, 370B, 370C ECG Signal Pickup 400 ECG Data Management Device 420 Management Performance Arithmetic unit 421 Data input / output unit 422 ECG data management unit 423 ECG data storage unit 430 Input / output device 500 Communication network V Transport truck

Claims (11)

A sensor unit having electrodes for detecting an electrocardiogram signal, which is an electrical signal generated by the heart;
An electrocardiogram monitor unit that receives an analog electrocardiogram signal from the electrode of the sensor unit, performs predetermined amplification processing and noise removal processing, and then converts it into a digital signal and records it as electrocardiographic data; ECG sensor. The electrocardiographic sensor according to claim 1,
The sensor unit is configured to be detachable from a device operated by a person who is a measurement target of the electrocardiogram signal.
ECG sensor. The electrocardiographic sensor according to claim 1,
The sensor unit includes an electrocardiographic sensor including a flexible sheet member, the electrode attached to the sheet member, and an attachment / detachment unit that attaches / detaches the sheet member to / from the device. The electrocardiographic sensor according to claim 1,
The sensor unit is attached to a seat belt of a vehicle worn by a person who is a measurement target, and includes an electrocardiogram signal detection unit that detects an electrocardiogram signal of the person who is the measurement target as an electric field change in a non-contact manner. ECG sensor. The electrocardiographic sensor according to claim 1,
The sensor unit is an electrocardiographic sensor configured to be provided on a piece of clothing directly worn by a person and in a form such that the electrode is in close contact with the skin of the person. The electrocardiographic sensor according to claim 1,
The sensor unit is configured as a belt-like member provided with the electrode, and is arranged in such a manner that the electrode is in close contact with the human skin in the vicinity of the heart when worn around the human torso. , ECG sensor. The electrocardiographic sensor according to claim 1,
The electrode of the sensor unit is an electrocardiographic sensor configured to amplify an electrocardiogram signal detected by the electrode, convert the signal into a digital signal, and transmit the signal as a radio signal. A sensor unit comprising an electrode for detecting an electrocardiogram signal, which is an electrical signal generated by the heart, and configured to be detachable from a device operated by a person who is a measurement target of the electrocardiogram signal; An electrocardiogram monitor unit that receives an analog electrocardiogram signal from the electrode of the sensor unit, performs predetermined amplification processing and noise removal processing, converts the signal into a digital signal, and records it as electrocardiographic data. An electrocardiographic sensor,
An electrocardiogram data storage unit that records electrocardiogram data collected in advance from a plurality of persons to be managed as standard electrocardiogram data;
A comparison is made between the electrocardiographic data received from the electrocardiographic sensor and the standard electrocardiographic data recorded in the electrocardiographic data storage unit to determine whether there is standard electrocardiographic data that matches the electrocardiographic data, and the determination An electrocardiographic data processing unit configured to transmit a result to the electrocardiographic sensor;
An electrocardiographic data management system comprising: an electrocardiographic data management device comprising: The electrocardiogram data management system according to claim 8,
When the electrocardiogram data processing unit of the electrocardiogram data management device determines that there is the standard electrocardiogram data that matches the electrocardiogram data acquired from the measurement target, the comparison result with the standard electrocardiogram data It is configured to further determine whether the electrocardiogram data is normal and transmit the determination result to the electrocardiogram sensor.
ECG data management system. A sensor comprising an electrode for detecting an electrocardiogram signal, which is an electrical signal generated by the heart, and configured to be detachable from a vehicle device on which a person who is a measurement target of the electrocardiogram signal is on board And an electrocardiogram monitor unit that receives an analog electrocardiogram signal from the electrode of the sensor unit, performs predetermined amplification processing and noise removal processing, converts the digital signal into a digital signal, and records it as electrocardiographic data; An electrocardiographic sensor comprising:
ECG data storage unit that records pre-collected ECG data as standard ECG data, and ECG data received from the ECG sensor and recorded in the ECG data storage unit ECG data processing configured to compare with the standard ECG data, determine whether there is standard ECG data that matches the ECG data, and send the determination result to the ECG sensor An electrocardiographic data management device having a unit;
When a determination result from the electrocardiogram data management device is received and the determination result is information indicating that the standard electrocardiogram data that matches the electrocardiogram data is present, the vehicle can be operated. A vehicle control device configured; and
Vehicle management system equipped with. The vehicle management system according to claim 10,
When the electrocardiogram data processing unit of the electrocardiogram data management device determines that there is the standard electrocardiogram data that matches the electrocardiogram data acquired from the measurement target, the comparison result with the standard electrocardiogram data It is configured to further determine whether the electrocardiogram data is normal and transmit the determination result to the electrocardiogram sensor,
The vehicle control device is configured to disable the operation of the vehicle when the determination result is information indicating that the determination result is not normal.
Vehicle management system.

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