WO2016182114A1 - Vehicle accident notification system, and method for controlling same - Google Patents

Abstract

A vehicle accident notification system of the present invention comprises a vehicle terminal which is attached to a vehicle, and the vehicle terminal comprises: an acceleration sensor for detecting the acceleration of the vehicle and outputting a signal of a corresponding state; an angular velocity sensor for detecting the angular velocity of the vehicle and outputting a signal of a corresponding state; and an operation control part connected between the acceleration sensor and the angular velocity sensor. The operation control part determines the acceleration and the angular velocity using detection signals outputted from the acceleration sensor and the angular velocity sensor; compares the degrees of the determined acceleration and the determined angular velocity to the degrees of a second set acceleration and a second set angular velocity, respectively; and, when the degrees of the determined acceleration and the determined angular velocity are not less than the degrees of the second set acceleration and the second set angular velocity, respectively, determines a current vehicle state as a preliminary accident occurrence state, generates a preliminary accident occurrence notification signal, and transmits the preliminary accident occurrence notification signal to a user terminal.

Description

Vehicle accident notification system and its control method

The present invention relates to a vehicle accident notification system and a control method thereof.

As the number of vehicles supplied increases and the vehicle is recognized as a necessity of life, the driver's driving time increases and the driving range is increased, thereby increasing the risk of an accident and also increasing the incidence of vehicle accidents.

As the vehicle accidents increase, various systems for preventing accidents have been introduced. For example, a lane departure warning system or a collision warning system has been incorporated into a vehicle and commercialized.

Here, the Lane Departure Warning System (LDWS) is a warning signal and a Pre-Safe Seatbelt (PSB) function that tightens the seat belt when the vehicle crosses the lane without turning on a turn signal. Haptic (Haptic Warning) is a device that raises the driver's alert. Collision Warning with Brake Support (CWBS) uses radar to monitor the distance to the vehicle in real time, and when a collision is detected, the driver uses a warning sound. It is a device to warn you of an accident.

As such, solutions to prevent accidents are being developed and prototyped gradually as technology improves.However, accidents occur in rare areas or when there are no passengers. There is a need for equipment that can urgently notify others of an emergency after an accident.

In order to reduce such a problem, an accident notification device has been developed that provides an accident notification service to automatically transmit a predetermined text message or voice message to a designated contact in a vehicle when a collision accident or the like occurs in the vehicle.

However, such an accident notification device is mounted on a vehicle, so when the accident notification device is damaged due to an accident shock, it does not operate normally, thereby providing a problem notification service.

(Prior art document)

Korean Laid-Open Patent Publication No. 10-2013-0037779 (published date: April 17, 2013, title of the invention: vehicle accident notification device and method)

Therefore, the technical problem to be achieved by the present invention is to automatically report the occurrence of a vehicle accident along with the accident location when the accident occurs in the vehicle to reduce the speed of accidents and casualties.

Another technical problem to be achieved by the present invention is to accurately determine whether an accident occurs in a vehicle, and to improve the reliability of the operation.

Vehicle accident notification system according to an aspect of the present invention includes a vehicle terminal attached to the vehicle, the vehicle terminal, the acceleration sensor for outputting a signal of the state by detecting the acceleration of the vehicle, by detecting the angular velocity of the vehicle It is connected to the angular velocity sensor, the acceleration sensor, and the angular velocity sensor that outputs a signal of a state, and the acceleration and the angular velocity are determined using the sensing signals output from the acceleration sensor and the angular velocity sensor, respectively, and the magnitude and angular velocity of the determined acceleration are determined. If the magnitude of the acceleration and the acceleration determined by comparing the magnitude of each with the magnitude of the second set acceleration and the second set angular velocity, respectively, are equal to or greater than the magnitude of the second set acceleration and the second set angular velocity, the state of the current vehicle is a preliminary accident occurrence state. And an operation controller for generating a preliminary accident occurrence notification signal and transmitting the signal to the user terminal. .

The vehicle accident notification system according to the feature, the user terminal further comprises a user terminal mounted in the vehicle, the user terminal is an acceleration sensor for detecting the acceleration of the user terminal and outputs a signal of a corresponding state, the user An angular velocity sensor that detects the angular velocity of the terminal and outputs a signal of a corresponding state, a gravity sensor for detecting the altitude of the vehicle, a magnetic sensor for detecting the orientation of the vehicle, and position data for obtaining position data of the user terminal An acquiring unit, connected to the acceleration sensor, the angular velocity sensor, the gravity sensor, the magnetic sensor, and the position data obtaining unit, the magnitude of acceleration of the vehicle detected by the acceleration sensor and the angular velocity sensor Current impact information, consisting of magnitude of angular velocity of the vehicle, and gravity The current altitude of the vehicle detected by the vehicle, the current orientation of the vehicle detected by the magnetic sensor, and the current vehicle position information detected by the position data acquisition unit are determined, and a preliminary accident occurrence notification signal is transmitted from the vehicle terminal. When the preliminary accident occurrence notification signal is transmitted from the vehicle terminal, it is determined whether the vehicle terminal identification number transmitted from the vehicle terminal together with the vehicle terminal identification number and the preliminary accident occurrence notification signal of the vehicle terminal are the same. When the vehicle terminal identification number of the terminal and the vehicle terminal identification number transmitted together with the preliminary accident occurrence notification signal are the same, it is determined whether the current acceleration magnitude and the current angular velocity magnitude are the same as the transmitted acceleration magnitude and the angular velocity magnitude, respectively, and the current acceleration magnitude The magnitude of the transmitted acceleration magnitude and the current angular velocity magnitude When the magnitudes of the transmitted angular velocities are equal to each other, an operation control unit for determining a state of a corresponding vehicle equipped with a vehicle terminal as an accident state.

In a control method of a vehicle accident notification system according to another aspect of the present invention, the user terminal determines whether the state of the vehicle is determined as an accident occurrence state, and the user terminal determines that the state of the vehicle is an accident occurrence state, Transmitting an accident occurrence notification signal and a vehicle terminal identification number to the control server, and when the accident occurrence notification signal is transmitted from the user terminal, the control server uses the transmitted vehicle terminal identification number to store vehicle information on the accident vehicle. Requesting, wherein the database transmits vehicle information of the vehicle to the control server using the transmitted terminal identification number, and the control server stores the vehicle information of the vehicle transmitted from the database in a storage unit. Step, the control server to receive the incident message to the user terminal Transmitting, and the user terminal includes the step of outputting the incident received message transmitted from the control server.

According to this feature, since the driver automatically estimates the position of the accident vehicle and the degree of the accident even when the driver is unconscious after the occurrence of the accident, rapid accident processing is performed. This reduces the occurrence of not only economic losses but also human injury due to rapid accident handling.

In addition, an accident determination operation of the vehicle is performed in both the vehicle terminal and the user terminal to determine whether an accident has occurred correctly. Therefore, since it is correctly determined whether or not an accident has occurred, it is wrongly determined whether or not an accident has occurred, thereby reducing the case where the vehicle accident notification system malfunctions, thereby improving the reliability of the operation.

1 is a schematic block diagram of a vehicle accident notification system according to an embodiment of the present invention.

FIG. 2 is a detailed block diagram of the vehicle terminal and the user terminal illustrated in FIG. 1.

3 is an operation flowchart of a vehicle terminal for controlling a pairing state with a user terminal according to an embodiment of the present invention.

4 is a data flowchart periodically performed when a vehicle terminal and a user terminal are in a pairing state and a user terminal and a control server are in a pairing state according to an embodiment of the present invention.

5 is a flowchart illustrating an operation for determining whether an accident occurs by a vehicle terminal according to an embodiment of the present invention.

6 is a flowchart illustrating an operation of determining whether an accident occurs by a user terminal according to an exemplary embodiment of the present invention.

7 is a data flow diagram illustrating an operation of a vehicle accident notification system according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

When a component is referred to as being "connected" or "connected" to another component, it is to be understood that the component may be directly connected or connected to the other component, but there may be other components in between. do. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

Next, a vehicle accident notification system and a control method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, a vehicle accident notification system according to an embodiment of the present invention will be described in detail with reference to FIG. 1.

The vehicle accident notification system according to an embodiment of the present invention shown in FIG. 1 includes a vehicle terminal 10 mounted on a vehicle, a user terminal 20 performing wireless communication with the vehicle terminal 10, and a user terminal 20. The control server 30 to communicate through the communication network 61, the database 40 is connected to the control server 40, and the text sending server 50 to communicate through the control server 30 and the communication network 62 Equipped.

The vehicle terminal 10 is located in a desired vehicle such as inside or outside a dash board.

The vehicle terminal 10 is an accident detection unit (hereinafter referred to as a 'first accident detection unit') 110, the first accident detection unit 110 for detecting a collision state or a collision state of the vehicle as shown in FIG. An operation controller (hereinafter, referred to as a “first operation controller”) 120 connected to a storage unit (hereinafter, referred to as a “first storage unit”) 130 connected to the first operation control unit 120, A wireless communication unit (hereinafter referred to as a 'first wireless communication unit') 140 connected to the first operation control unit 120 and a warning unit 150 connected to the first operation control unit 120 are provided.

The first accident detection unit 110 is for detecting whether a collision accident or a collision accident has occurred in a vehicle equipped with the vehicle terminal 10, and an acceleration sensor for detecting an acceleration of the vehicle and outputting an acceleration detection signal of a corresponding state. (Hereinafter, referred to as a first acceleration sensor) 111 and the angular velocity sensor 12, which is a gyro sensor (gyro sensor) for detecting the angular velocity (that is, the rotational speed of the vehicle) and outputting the angular velocity detection signal of the corresponding state. Equipped.

Therefore, the first acceleration sensor is for determining the magnitude of the shock applied to the vehicle, and the first angular velocity sensor is for determining the magnitude of the shaking applied to the vehicle.

These acceleration sensors 111 and the angular velocity sensor 112 form a component of the vehicle terminal 10 as in this example.

However, alternatively, an acceleration sensor and an angular velocity sensor mounted on a vehicle may be used. In this case, the vehicle terminal 10 has an input port for receiving a signal output from the acceleration sensor and the angular velocity sensor, respectively, mounted on the vehicle, and when installing the vehicle terminal 10 in the vehicle, By connecting the output terminal of the sensor and the angular velocity sensor, a signal output from each of the acceleration sensor and the angular velocity sensor can be applied to the operation control unit 120 in the vehicle terminal (10).

The first operation control unit 120 collects a detection signal applied from the first accident detection unit 110 and determines that the collision or collision accident has occurred in the vehicle, the acceleration collected from the first accident detection unit 110. Controls the operation of transmitting the shock information (hereinafter, referred to as 'first shock information') having the size of and the size of the angular velocity to the user terminal 20.

The first operation control unit 120 detects the driving state of the vehicle through the notification of the occupant if the communication state between the vehicle terminal 10 and the user terminal 20 is not activated when the vehicle is running Outputs a warning signal for the warning unit 150.

Therefore, the vehicle accident notification system may be smoothly operated due to communication between the vehicle terminal 10 and the user terminal 20 when the vehicle is driven.

The first storage unit 130 may be configured to control the operation of the first operation control unit 120, such as setting values necessary for the operation of the first operation control unit 120 and first shock information detected by the first accident detection unit 110. It is a storage medium that stores necessary data or data generated during operation.

The first storage unit 130 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, an SD or XD memory). Etc.), random access memory (RAM), static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory, PROM), a magnetic memory, a magnetic disk, and an optical disk.

The first wireless communication unit 140 is a device for short-range communication with the user terminal 20 and transmits the corresponding data or signal to the user terminal 20 or from the user terminal 20 under the control of the first operation control unit 120. The vehicle terminal 10 receives the transmitted data or signal.

The first wireless communication unit 140 may be a device that performs Bluetooth communication, infrared communication (IrDA), Infraed Data Association (UrDA), UWB (Ultra WidBand) communication, ZigBee communication, Wi-Fi communication, or the like. have.

The warning unit 150 operates on a warning signal output from the first operation control unit 120 and may include a buzzer or a light emitting diode (LED) that outputs a warning sound.

The user terminal 20 is a terminal of an occupant in a vehicle, such as a vehicle driver or a passenger, and may be a smart phone, a portable phone, a tablet PC, or the like.

As shown in FIG. 2, the user terminal 20 includes an accident detector (hereinafter referred to as a “second accident detector”) 211, a vehicle location detector 212 for identifying a location of a vehicle, Storage connected to the operation controller (hereinafter, referred to as a 'second operation control unit') 220 and the second operation control unit 220 connected to the second accident detection unit 211 and the vehicle position detection unit 212. Unit (hereinafter, referred to as a “second storage unit”) 230, a wireless communication unit (hereinafter referred to as a “second wireless communication unit”) 240 connected to the second operation control unit 220, and a second operation control unit. The display unit 250 connected to the 220, the voice receiver 261 connected to the second operation controller 220, the voice transmitter 262, and the timer 270 connected to the second operation controller 220. And a speaker 280 connected to the second operation control unit 220.

The second accident detection unit 211, the second storage unit 230, and the second wireless communication unit 240 are the first accident detection unit 110, the first storage unit 130, and the first wireless communication unit 140, respectively. Since the same function is implemented, a detailed description thereof will be omitted.

The position detecting unit 212 is for detecting the position of the accident vehicle using the position of the user terminal 20 located in the accident vehicle when a collision accident or a collision accident occurs.

Accordingly, the position sensor 212 includes a gravity sensor 23, a magnetic sensor 24, and a position data acquirer 25.

Gravity sensor 23 is for detecting the altitude of the vehicle, it may be made of a G-sensor.

The magnetic sensor 24 is for detecting the orientation of the vehicle, and may use the effect of changing the amount of physical properties under the influence of the magnetic field.

The location data acquisition unit 25 is a device that acquires location data such as longitude and latitude of the user terminal 20 through a global navigation satellite system (GNSS).

GNSS refers to a navigation system that can calculate the position of the user terminal 20 using radio signals received from satellites (not shown). Specific examples of GNSS include Global Positioning System (GPS), Galileo, Global Orbiting Navigational Satellite System (GLONASS), COMPASS, Indian Regional Navigational Satellite System (IRNS), and Quasi-Zenith Satellite System (QZSS), depending on the operating entity. Can be.

When the first shock information is transmitted from the vehicle terminal 10 through the wireless communication unit 240, the second operation controller 220 transmits the first shock information transmitted and the shock information detected from the second accident detection unit 211 ( Hereinafter, it is determined whether the " second impact information " is equal to each other within an error range. When the transmitted first shock information and the second shock information detected by the user terminal 20 are in the same state, the second operation control unit 220 determines that an accident has occurred in the vehicle, and determines the communication network 61. Notify the occurrence of the accident to the control server 30 by using.

In addition, the second operation control unit 220 transmits the vehicle information and the accident related information generated when an accident occurs by the request of the control server 30 to the control server 30.

In this case, the vehicle information may include a vehicle number, a vehicle owner and an emergency telephone number, and the accident related information may include second impact information, vehicle location information, and an accident occurrence time.

The second storage unit 230 includes current acceleration information including the current acceleration magnitude and the current angular velocity magnitude determined by the detection signal output from the accident detection unit 211, and the current vehicle information determined by the location detection unit 212. It stores current vehicle location information with altitude, azimuth, latitude and longitude, and accident related information with time of accident occurrence.

In addition, the second storage unit 230 stores vehicle information of the corresponding vehicle corresponding to the vehicle terminal identification number transmitted from the control server 40.

The display unit 250 outputs data applied from the second operation control unit 220 according to the control of the second operation control unit 220 so that the user can visually check it, and also reports an accident to the control server 40. Informs that reception is normally done.

 Accordingly, the occupant of the vehicle checks the operation state of the user terminal 20 and the operation state of the vehicle accident notification system using the information output to the display unit 250.

The display unit 250 may include a liquid crystal display (LCD), an organic light emitting display (OLED), or the like.

The voice receiver 261 is a device that receives a voice signal transmitted from the outside, converts it into a corresponding voice, and outputs it to a speaker 280. The voice transmitter 261 is input from the outside through a microphone. This device converts the voice to the voice signal of the corresponding state and transmits it to the outside.

Therefore, the user terminal 20 can use the voice receiver 261 and the voice transmitter 262 to make a telephone call with another user terminal, a mobile phone, or a wired or wireless telephone.

The timer 270 is for determining a generation time, a current time, or the like of data necessary for the operation of the second operation controller 220.

The speaker 280 outputs a voice corresponding to the voice signal under the control of the second operation controller 220.

The control server 30 communicates with the user terminal 20 through the communication network 61, and is connected to an accident management unit 31 and an accident management unit 31 for controlling a reporting operation of a vehicle accident occurrence (hereinafter, 32, referred to as a 'third reservoir'.

When the state of the vehicle is determined to be an accident occurrence state, the accident management unit 31 receives the accident related information from the user terminal 20 and generates accident occurrence information consisting of the accident occurrence location and the occurrence time of the accident, and sends a text message server ( Send the accident occurrence information along with the emergency telephone number and the designated letter to 50) to report the accident to the emergency telephone number.

The third storage unit 32 includes data or information necessary for the control operation of the accident management unit 31, such as vehicle information of the vehicle corresponding to the vehicle terminal identification number transmitted from the database 40 and a predetermined accident reception message. This saves.

 The database 40 stores the vehicle information of the vehicle such as the vehicle number, the owner of the vehicle, and the emergency telephone number corresponding to the vehicle terminal identification number, and the accident occurrence information transmitted from the control server 40 is stored in the vehicle. It is stored correspondingly.

The text sending server 50 transmits the designated text, the accident occurrence information, and the vehicle information transmitted to the emergency telephone number transmitted from the control server 30.

The communication networks 61 and 63 may be 3G networks, 4G networks, or LTE networks.

Referring to Figures 3 to 7, the control method that is the operation of the vehicle accident notification system having such a structure will be described.

First, referring to FIG. 3, a pairing state in which the vehicle terminal 10 is connected to the user terminal 20 and the communication between the vehicle terminal 10 and the user terminal 20 is possible when the vehicle starts to travel. The operation of the vehicle terminal 10 that detects whether a pairing state is described will be described.

First, when the operation of the vehicle terminal starts from the power provided by the starting operation of the vehicle or the power provided from the power supply unit installed in the vehicle, the operation of the first operation control unit 120 of the vehicle terminal 10 also starts (S10). ).

When the operation of the first operation control unit 120 starts (S10), the first operation control unit 120 detects the detection signal output from the acceleration sensor 111 and the angular velocity sensor 112 of the first accident detection unit 110. It is used to determine whether the vehicle is currently running.

Therefore, the first operation control unit 120 reads the detection signals output from the acceleration sensor 111 and the angular velocity sensor 112 of the first accident detection unit 110 (S11), and outputs the acceleration sensor 111. The magnitude of the acceleration of the vehicle determined by the signal and the magnitude of the angular velocity of the vehicle determined by the output signal of the angular velocity sensor 112 are determined (S12).

Next, the first operation control unit 120 compares the magnitude of the determined acceleration and the magnitude of the angular velocity with the magnitude of the first set acceleration and the first set angular velocity, respectively, to determine whether the determined acceleration magnitude is greater than or equal to the first set acceleration magnitude. It is determined whether the magnitude of the angular velocity is greater than or equal to the first set angular velocity.

At this time, the magnitude of the first set acceleration and the magnitude of the first set angular velocity are applied to the vehicle generated when the vehicle performs normal driving at the set speed (eg, 40km / h-70km / h) without rapid acceleration or deceleration. It may be determined in consideration of the shock and shaking conditions.

When the determined magnitude of acceleration and the magnitude of angular velocity are each equal to or greater than the magnitude of the first set acceleration and the first set angular velocity, the first operation controller 120 determines the current state of the vehicle as the driving state (S14).

However, when at least one of the determined acceleration and the magnitude of the angular velocity is less than the magnitude of the first set acceleration and the first set angular velocity, the first operation control unit 120 does not drive the current road due to the stop or parking. It determines with driving state (S15).

When the state of the vehicle is determined to be the driving state (S14), the first operation controller 120 determines whether the vehicle terminal 10 is in a pairing state with the user terminal 20 to operate the vehicle accident notification system.

However, if the state of the vehicle is determined to be a non-driving state (S14), the first operation control unit 120 proceeds to step S11 to determine whether the vehicle is in a driving state.

When it is determined that the vehicle is in a driving state, the first operation controller 120 determines whether a pairing state notification signal such as a beacon signal is received from the user terminal 20 within the set time (S16 and S17).

The pairing state notification signal is a signal transmitted from the user terminal 20 to the vehicle terminal 10 to inform that the pairing state is normally maintained when the vehicle terminal 10 and the user terminal 20 are paired with each other. .

When the pairing status notification signal is normally received from the user terminal 20 to the vehicle terminal 10, the vehicle terminal 10 transmits an acknowledgment signal (ACK signal) to the user terminal 20, so that the user terminal 20 also receives the signal. It is possible to confirm that the pairing state with the vehicle terminal 10 is normally maintained.

Accordingly, the first wireless communication unit 140 and the second wireless communication unit 240 are activated in a normal operation state, and thus the vehicle terminal 10 and the user terminal 20 using the first and second wireless communication units 140 and 240. In a pairing state where communication is performed, the vehicle terminal 10 and the user terminal 20 periodically transmit a pairing state notification signal and an acknowledgment signal.

Thus, when a pairing state notification signal is received from the user terminal 20 through the second and first wireless communication units 240 and 140 within the set time (S16 and S17), the first operation control unit 120 is in the current state. It is determined that the pairing state with the user terminal 20.

Accordingly, the first operation control unit 120 reads the unique vehicle terminal identification number such as a MAC address from the storage unit 130 together with the acknowledgment signal to the user terminal 20 and the first wireless communication unit 140. ) Is transmitted to the user terminal 20 (S18).

Accordingly, the user terminal 20 recognizes that the user terminal 20 normally maintains a pairing state with the vehicle terminal 10 by using the acknowledgment signal received through the second wireless communication unit 240, and uses the vehicle terminal identification number. The vehicle terminal 10 keeps pairing with itself. In this case, the user terminal 20 stores the vehicle terminal identification number transmitted from the vehicle terminal 10 in the storage unit 230 so as to recognize the vehicle terminal 10 currently maintaining a pairing state with itself.

However, when the pairing state notification signal is not received within the set time, the first operation controller 120 does not operate the first wireless communication unit 140 and determines that the communication terminal is not normally connected to the user terminal 20. .

Accordingly, the first operation controller 120 outputs a driving signal to the warning unit 150 to realize a pairing state with the user terminal 20 (S19), and drives the warning unit 150.

As such, when the warning unit 150 is operated by the first operation controller 120, the occupant of the vehicle in which the vehicle terminal 10 is installed does not form a pairing state between the vehicle terminal 10 and the corresponding user terminal 20. It is recognized that the vehicle accident notification system is not operating normally.

Accordingly, the user of the vehicle terminal 10 activates the first wireless communication unit 140 in an operating state such that the vehicle terminal 10 is in a pairing state where communication with the user terminal 20 is performed.

As such, when the vehicle is in a driving state, the vehicle terminal 10 periodically transmits a pairing state notification signal and a reception confirmation signal between the vehicle terminal 10 and the user terminal 20, as shown in FIG. 4. Confirm that the pairing state between 10) and the user terminal 20 is normally maintained.

In addition, as shown in FIG. 4, the pairing state notification signal and the acknowledgment signal are periodically transmitted between the user terminal 20 and the control server 30, so that the pairing state between the user terminal 20 and the control server 30 is normally performed. To be maintained. In this case, the user terminal 20 may transmit the vehicle terminal identification number transmitted from the vehicle terminal 10 to the control server 30 to identify the vehicle terminal 10 maintaining the pairing state.

Next, with reference to FIGS. 5 and 6, the operation of the vehicle terminal 10 and the user terminal 20 for determining whether an accident has occurred in the vehicle will be described.

First, the operation of the vehicle terminal 10 will be described with reference to FIG. 5.

When the operation of the first operation controller 120 of the vehicle terminal 10 for determining whether an accident has started (S210), the first operation control unit 120 is the acceleration sensor 111 of the first accident detection unit 110 And the sensing signals respectively output from the angular velocity sensor 112 (S211), and the vehicle determined by the magnitude of the acceleration of the vehicle determined by the output signal of the acceleration sensor 111 and the output signal of the angular velocity sensor 112. The magnitude of the angular velocity of is determined (S212).

Next, the first operation control unit 120 compares the magnitude of the determined acceleration and the magnitude of the angular velocity with the magnitude of the second set acceleration and the second set angular velocity, respectively, to determine the magnitude of the acceleration and the acceleration, respectively. It is determined whether or not the magnitude of the second set angular velocity is equal to or greater (S213).

In this case, the magnitude of the second set acceleration and the magnitude of the second set angular velocity are set based on the magnitude of the acceleration and the angular velocity detected by the vehicle when a collision accident or a collision accident occurs that causes a human injury.

Therefore, the magnitude of the second set acceleration and the magnitude of the second set angular velocity are larger than the magnitude of the first set acceleration and the magnitude of the first set angular velocity, respectively.

When the magnitudes of the determined acceleration and the angular velocity are each equal to or greater than the magnitude of the second set acceleration and the second set angular velocity, the first operation controller 120 determines the current vehicle state as a preliminary accident occurrence state (S214).

As such, when the state of the vehicle is determined to be a preliminary accident occurrence state, the first operation controller 120 generates a preliminary accident occurrence notification signal to generate the preliminary accident occurrence notification signal and the first storage unit by using the first wireless communication unit 140. The vehicle terminal identification number stored in the 130 is transmitted to the user terminal 20 (S215).

However, when at least one of the determined acceleration magnitude and the angular velocity magnitude is less than the set acceleration magnitude and the set angular velocity magnitude, the first operation controller 120 determines that the current vehicle is stably running or stopped without an accident to reserve the vehicle. Proceed to step S211 to detect the accident occurs.

As such, in the present example, an impact of more than a predetermined size due to a collision accident or a collision accident is generated by using the magnitude of the acceleration and the magnitude of the angular velocity determined according to the signals output from the acceleration sensor 111 and the deceleration sensor 112. When the vehicle body is shaken and the vehicle body is shaken, the first operation control unit 120 determines the preliminary accident occurrence state as the state of the vehicle, and when determined as the preliminary accident occurrence state, the vehicle terminal 10 sends a preliminary accident occurrence notification signal to the user terminal 20. send.

Next, the accident occurrence determination operation performed by the user terminal 20 will be described with reference to FIG. 6.

When the operation of the user terminal 20 is started due to the supply of power required for the operation and is in a pairing state with the vehicle terminal 10, the operation of the second operation control unit 220 of the user terminal 20 is started (S220). In operation S221, the second operation controller 220 determines whether the set time has elapsed using the time determined by the timer 270.

When the set time has elapsed after the operation for determining the occurrence of the accident of the vehicle has started, the second operation controller 220 reads the detection signals output from the second accident detector 211 and the position detector 212, respectively. (S222), the current shock information consisting of the magnitude of the acceleration of the vehicle detected by the acceleration sensor 21 and the magnitude of the angular velocity of the vehicle detected by the angular velocity sensor 22, and the vehicle detected by the gravity sensor 23 (S222). The current vehicle position information including the current altitude of the vehicle, the current orientation of the vehicle detected by the magnetic sensor 24, and the latitude and longitude of the current vehicle detected by the position data acquisition unit 25 are determined (S223). Store in the storage 230 (S224)

At this time, the second operation control unit 220 also determines and stores the time when the signals are read from the detection units 211 and 212 as the determination time using the signal applied from the timer 270 (S223, S224)).

However, if the set time has not elapsed, the second operation controller 220 proceeds to step S221 and determines whether the set time has elapsed using the timer 270.

When the flow returns to step S224 and the current shock information, the current vehicle position information, and the determination time are determined and stored by the operations of the second accident detecting unit 211, the position detecting unit 212, and the timer 270, The second operation controller 220 determines whether a preliminary accident occurrence notification signal is transmitted from the vehicle terminal 10 (S225).

When the preliminary accident occurrence notification signal is not transmitted from the vehicle terminal 10, the second operation controller 220 proceeds to step S221 and the second accident detection unit 211 and the position detection unit 212 at each set time. The output signal is read to generate current impact information, current vehicle position information, and determination time.

However, when the preliminary accident occurrence notification signal is transmitted from the vehicle terminal 10, the second operation controller 220 may identify the vehicle terminal identification number of the corresponding vehicle terminal 10 maintaining the pairing state stored in the storage 230. It is determined whether the vehicle terminal identification numbers transmitted from the vehicle terminal 10 together with the preliminary accident occurrence notification signal are the same (S226).

When the vehicle terminal identification number of the stored vehicle terminal 10 and the vehicle terminal identification number transmitted together with the preliminary accident occurrence notification signal are different from each other, the second operation controller 20 may determine that the vehicle terminal that has transmitted the preliminary accident occurrence notification signal is itself. It is determined that the vehicle terminal 10 is not in a pairing state with the user terminal 20.

Therefore, the second operation controller 220 ignores the preliminary accident occurrence notification signal transmitted and proceeds to step S221.

However, when the stored vehicle terminal identification number of the vehicle terminal 10 and the vehicle terminal identification number transmitted together with the preliminary accident occurrence notification signal are the same, the second operation controller 220 pairs with its user terminal 20. It is determined that the preliminary accident occurrence notification signal is transmitted from the vehicle terminal 10 maintaining the state, and performs an operation of confirming the occurrence of the accident again.

Accordingly, the second operation controller 220 of the user terminal 20 reads the current acceleration magnitude and the current angular velocity magnitude stored in the second storage 230 (S227), and reads the current acceleration magnitude and the transmitted acceleration. It is determined whether the magnitudes are the same and whether the read current angular velocity magnitude and the transmitted angular velocity magnitude are equal to each other (S228).

When the difference between the magnitude of the read current acceleration magnitude and the magnitude of the transmitted acceleration magnitude is within a predetermined error range, and the difference between the magnitude of the read current angular velocity magnitude and the magnitude of the transmitted angular velocity magnitude is also within a predetermined error range, the second operation controller 220 Determines that the read current acceleration magnitude and the transmitted acceleration magnitude are equal to each other and that the read current angular velocity magnitude and the transmitted angular velocity magnitude are also equal to each other.

If it is determined that the read current acceleration magnitude and the transmitted acceleration magnitude are equal to each other and the read current angular velocity magnitude and the transmitted angular velocity magnitude are equal to each other, the second operation controller 220 determines that the vehicle in which the vehicle terminal 10 is mounted. It is determined that the state of the accident state (S229).

However, when at least one of the read current acceleration magnitude, the transmitted acceleration magnitude, and the read current angular velocity magnitude and the transmitted angular velocity magnitude are different from each other, the second operation controller 220 determines that the vehicle terminal 10 is mounted. The state is determined as an accident vehicle (S230).

Accordingly, the process proceeds to step S221 and the accident detection unit 211 and the position detection unit 212 are used to determine whether an accident of the vehicle occurs.

As described above, in the case of the present example, it is determined whether an accident occurs in the vehicle by using the operation of the user terminal 20 as well as the operation of the vehicle terminal 10, and thus, whether or not the accident of the vehicle occurs more accurately is determined according to the present example. The reliability of operation for the vehicle accident notification system is improved.

Next, referring to FIG. 7, when the state of the vehicle is determined to be the accident state by the user terminal 20, operations of the user terminal 20, the control server 30, and the text sending server 50 will be described. .

First, the second operation controller 220 of the user terminal 20 determines whether the state of the vehicle is determined as the accident occurrence state by a determination operation performed by the preliminary accident occurrence notification signal transmitted from the vehicle terminal 10. (S31).

When it is determined that the state of the vehicle is an accident occurrence state, the second operation controller 220 of the user terminal 20 continuously determines whether the state of the vehicle is determined to be an accident occurrence state (S31).

However, when the state of the vehicle is determined to be an accident occurrence state, the second operation controller 220 of the user terminal 20 transmits the accident occurrence notification signal and the second storage unit (eg, the control server 30 through the communication network 61). The vehicle terminal identification number stored in 230 is transmitted to the control server 30 (S32).

When the accident occurrence notification signal is transmitted from the user terminal 20, the accident management unit 31 of the control server 30 transmits the transmitted vehicle terminal identification number to the database 40 so as to request vehicle information on the vehicle having an accident. (S33).

Therefore, the database 40 reads the vehicle information (ie, vehicle number, owner and emergency telephone number, etc.) of the corresponding vehicle using the transmitted terminal identification number and transmits it to the control server 30 (S33). .

For this reason, the control server 30 stores the vehicle information of the vehicle transmitted from the database 40 in the third storage unit 32 (S34).

Next, the accident management unit 31 of the control server 30 reads the accident reception message stored in the third storage unit 32 and transmits the accident reception message to the user terminal 20 (S35), the accident reception is normally received Notifies the user terminal 20

Accordingly, the second operation control unit 220 of the user terminal 20 outputs the incident reception message transmitted from the control server 30 to the display unit 250 (S36).

Therefore, the occupant of the accident vehicle checks the message output to the display unit 250 of the user terminal 20 to confirm that the accident occurrence report has been normally received by the control server 30.

As such, after outputting the incident reception message transmitted from the control server 30 to the display unit 250, the second operation control unit 220 of the user terminal 20 calls up the confirmation message stored in the storage unit 230 And transmits to the control server 30 (S37), and informs the control server 30 that the accident confirmation message received from the control server 30 normally received.

After the accident management unit 31 of the control server 30 transmits the incident reception message to the user terminal 10 (S35), it determines whether the confirmation message is transmitted from the user terminal 10 (S38).

When the confirmation message is transmitted after receiving the accident reception message to the user terminal 10, the accident management unit 31 of the control server 30 determines the state of the vehicle as the final accident occurrence state (S313).

However, when the confirmation message is not transmitted from the user terminal 10, the accident management unit 31 of the control server 30 transmits the accident reception message to the user terminal 10 again after the set time elapses (S39). In operation S311, it is determined whether the confirmation message is transmitted from the user terminal 20 again.

Therefore, when the state of the user terminal 10 is normally operable, the second operation controller 220 of the user terminal 10 reads the confirmation message stored in the storage 230 to control the server 30. If the user terminal 10 does not operate normally due to an accident shock, the user terminal 10 may not transmit a confirmation message to the control server 30.

Secondly, if a confirmation message is received from the user terminal 20 within the set time after transmitting the incident reception message to the user terminal 20 (S311, S312), the accident management unit 31 of the control server 30 is the vehicle The state of is determined as the final accident occurrence state (S313).

However, even after the second incident reception message is transmitted to the user terminal 20, if a confirmation message is not received from the user terminal 20 within the set time (S311 and S312), the accident management unit 31 of the control server 30 ) Is determined as the final accident occurrence state (S313).

As such, when the control server 30 determines the state of the vehicle as the final accident occurrence state, the accident management unit 31 of the control server 30 requests the accident related information to the user terminal 20 (S314).

In this example, the accident-related information is determined by the operations of the accident detector 21 and the location detector 212 of the user terminal 20 and stored in the second storage unit 230, the current shock information and the current vehicle. It means position information and determination time.

 Accordingly, the second operation control unit 220 of the user terminal 20 reads the accident related information stored in the second storage unit 230 at the request of the accident management unit 31 of the control server 30 to communicate with the communication network 61. It transmits to the control server 30 through (S315). At this time, the determination time becomes an accident occurrence time.

The control server 30 generates accident occurrence information having an accident occurrence location and an accident occurrence time using the accident related information transmitted from the user terminal 20 (S316).

Then, the vehicle terminal identification number along with the accident occurrence information is transmitted to the database 40 (S316).

Therefore, the database 40 stores accident occurrence information corresponding to the vehicle and transmitted (S318).

 Then, the relationship server 30 transmits the accident occurrence information and the designated text for guiding the accident to the text sending server 50 together with the vehicle information including the emergency telephone number stored in the third storage unit 32 (S319). ).

Therefore, the text sending server 50 transmits the designated text, the vehicle information and the accident occurrence information to the transmitted emergency telephone number (S320), the accident occurrence situation, the accident occurrence position and accident of the vehicle automatically to the designated emergency telephone number It will tell you the time of occurrence.

Due to this, an accident occurrence report is promptly performed, and the location of the accident can also be immediately known with the report received, thereby greatly reducing human and economic damages due to prompt response.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (3)

A vehicle terminal attached to the vehicle, The vehicle terminal, Acceleration sensor that detects the acceleration of the vehicle and outputs the signal of the state, An angular velocity sensor that detects the angular velocity of the vehicle and outputs a signal in that state; It is connected to the acceleration sensor and the angular velocity sensor, the acceleration and the angular velocity is determined using the sensing signals output from the acceleration sensor and the angular velocity sensor, respectively, and the magnitude of the determined acceleration and the magnitude of the angular velocity are respectively set to When the magnitude of the acceleration and the acceleration determined by comparing with the magnitude of the second set angular velocity, respectively, is equal to or greater than the magnitude of the second set acceleration and the second set angular velocity, the state of the current vehicle is determined as a preliminary accident occurrence state and a preliminary accident occurrence notification signal is provided. Generated and transmitted to the user terminal Including an operation control unit Vehicle accident notification system. In claim 1, The vehicle accident notification system, the user terminal further comprises a user terminal mounted to the vehicle, The user terminal, An acceleration sensor for detecting an acceleration of the user terminal and outputting a signal of a corresponding state; An angular velocity sensor that detects an angular velocity of the user terminal and outputs a signal of a corresponding state; A gravity sensor for detecting the altitude of the vehicle, Magnetic sensor for detecting the orientation of the vehicle, A location data acquisition unit for obtaining location data of the user terminal, and A magnitude of acceleration of the vehicle detected by the acceleration sensor and an angular velocity of the vehicle detected by the angular velocity sensor, connected to the acceleration sensor, the angular velocity sensor, the gravity sensor, the magnetic sensor, and the position data acquisition unit. Determine the current impact information, the current impact of the vehicle, the current altitude of the vehicle detected by the gravity sensor, the current bearing of the vehicle detected by the magnetic sensor, and the current vehicle position information detected by the position data acquisition unit; It is determined whether the preliminary accident occurrence notification signal is transmitted from the terminal, and when the preliminary accident occurrence notification signal is transmitted from the vehicle terminal, the vehicle terminal identification transmitted from the vehicle terminal together with the vehicle terminal identification number and the preliminary accident occurrence notification signal of the vehicle terminal. It is determined whether the numbers are the same and the vehicle terminal of the vehicle terminal. If the vehicle terminal identification number transmitted together with the star number and the preliminary accident occurrence notification signal are the same, it is determined whether the current acceleration magnitude and the current angular velocity magnitude are the same as the transmitted acceleration magnitude and the angular velocity magnitude, respectively. And an operation control unit for determining the state of the vehicle equipped with the vehicle terminal as an accident state when the magnitude of the magnitude and the magnitude of the current angular velocity and the magnitude of the transmitted angular velocity are the same. Vehicle accident notification system. Determining, by the user terminal, whether a state of the vehicle is determined as an accident occurrence state; When the user terminal is determined that the state of the vehicle is an accident occurrence state, transmitting an accident occurrence notification signal and the vehicle terminal identification number to the control server, When the control server transmits an accident occurrence notification signal from the user terminal, requesting vehicle information on an accident-prone vehicle to a database using the transmitted vehicle terminal identification number. The database transmits the vehicle information of the vehicle to the control server using the transmitted terminal identification number, The control server stores the vehicle information of the vehicle transmitted from the database to the storage unit, The control server transmitting an accident reception message to the user terminal, and The user terminal outputs the incident reception message sent from the control server Control method of the vehicle accident notification system comprising a.

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