KR20150117561A

KR20150117561A - System and method for sensing collision of automotive

Info

Publication number: KR20150117561A
Application number: KR1020140043229A
Authority: KR
Inventors: 백용범; 강해구
Original assignee: (주)아이피앤
Priority date: 2014-04-10
Filing date: 2014-04-10
Publication date: 2015-10-20

Abstract

According to the present invention, disclosed are a vehicle collision detection system and a processing method thereof. According to an embodiment of the present invention, the vehicle collision detection system has multiple sensing units mounted thereon to sense whether each of multiple devices included in a vehicle is normally operated and is connected to the sensing units through an on-board diagnostics (OBD)-II device. The vehicle collision detection system comprises: diagnostic trouble codes (DTC) regarding drive information through an electronic control unit (ECU) of the vehicle and the multiple sensing units; a sensor information input part receiving real time information detected by a G-sensor for detecting an impact to the vehicle; a database part storing comparison data corresponding to the real time information input by the sensor information input part; and a control part. When an impact to the vehicle is detected through the real time information of the G sensor, which is input through the sensor information input part, the control part compares DTC regarding the multiple sensing units previously stored in the database part before the impact is detected with DTC regarding the multiple sensing units received after the impact is detected and determines a collision of the vehicle when at least one of the sensing units is changed from a normal operation state to an anomalous state.

Description

Technical Field [0001] The present invention relates to a vehicle collision detection system,

The present invention relates to a vehicle collision detection system and method.

More particularly, the present invention relates to an airbag device that can more precisely grasp a situation in which an airbag is to be driven in a vehicle equipped with an airbag device, thereby preventing driving errors of the airbag control system, It is possible to automatically notify the emergency situation of the driver to the emergency contact set by the automobile collision detection system or the driver designated by the driver even if the driver is unconscious by sensing the airbag operation signal in the event of an accident and the airbag failure or the airbag deployment signal is not detected The present invention relates to a vehicle collision detection system and method for detecting a collision of an automobile through the presence or absence of failure of other devices installed in the automobile.

Generally, an airbag device is used to mitigate the impact experienced by a passenger in the event of a car collision, and a typical airbag system for driving the airbag device includes a control circuit.

The control circuit of such an airbag system receives a signal from an electrical acceleration sensor (shock sensor) and transmits a control signal at the gate of a generally open semiconductor switching element. The switching elements are each connected to a parallel path between the system operating voltage and the ground voltage, and each path includes a safety sensor, a squib circut, and a switching element.

In particular, the safety sensors are mounted on the driver's seat, front passenger seat or driver's seat side, and the right side of the passenger seat, respectively, and each sensor is provided with an acceleration sensing mechanism . The discharge circuit is connected to the gas source of the airbag device, which is mounted on the front of the driver's seat and front passenger seat, respectively.

Such an airbag control system deploys the driver's and passenger's airbag only when the safety sensor is closed during operation and the electrical acceleration sensor is closed. In particular, the acceleration sensing mechanism of the safety sensor closes the switch, which is normally open, for relatively small accelerations compared to the acceleration required to close the electrical acceleration sensor.

When the switch is thus closed, the safety sensor supplies a high voltage signal to the first terminal of the discharge circuit and the control circuit. The high voltage signal from the safety sensor causes the control circuit to enter the operating mode. Then, the control circuit confirms whether or not the automobile has an accident based on the signal from the electric acceleration sensor. When the electric acceleration sensor senses acceleration, the control circuit sends a control signal to close the switching element. As a result, each emission circuit flows from the system operating voltage to the ground voltage, causing each gas source to deploy an operator air bag, a passenger air bag, and a side air bag. When the airbag is deployed, the airbag protects the vehicle occupant from impact impact.

OBD (On-Board Diagnostics) was introduced in the 1970s as a serious social problem, and the Environmental Protection Agency (EPA) has set new standards for the purpose of restricting the emission of environmental pollutants And automakers have devised a method for electronically controlling the fuel supply and ignition devices of an automobile based on this standard. Furthermore, in 1988, the Society of Automotive Engineers (SAE) established a standard plug connector for processing diagnostic test signals and OBD, an on-board diagnostic program standard. Recently produced vehicles include sensors for various measurement and control And these devices are controlled by an ECU (Electronic Control Unit).

The original purpose of such an ECU was to precisely control the engine's core functions such as ignition timing, fuel injection, variable valve timing, idling, and threshold setting, but with the development of vehicle and computer performance, , Braking system, steering system, and so on.

The OBD standard is a function that allows information on the main system of the vehicle transmitted from the sensors attached to the vehicle to the ECU to be displayed on a console or an external device of the vehicle using a serial communication function. These standards have made it easier to diagnose automobiles, and these electronic diagnostic systems have been developed and established as a standardized diagnostic system called OBD-II (On-Board Diagnostic version II).

Especially, according to the OBD-II standard, all vehicles adopt standardized Diagnostic Trouble Codes and connection interface (ISO J1962). When connecting the ISO J1962 connector, which is the current standard, to an external scanner, It is possible to communicate with the ECU using scan software installed in PDA and OBD-II standard. In addition, the OBD-II scan system is capable of checking the level of the vehicle's exhaust gas, misfire of a specific cylinder, and abnormality of a three-way catalyst device. It informs the trouble contents through the fault diagnosis code of the place. At this time, the types of faults and fault codes are standardized, and general automobile repair shops can easily detect the fault of the vehicle using the fault code defined by the OBD-II standard and apply it to the repair of the car.

Korean Patent Application No. 10-1999-7003455 Korean Patent Application No. 10-2006-0032425 Korean Patent Application No. 10-2007-0098269 Korean Patent Application No. 10-2008-0051448 Korean Patent Application No. 10-2008-7004199

In summary, the Supplemental Restraint System refers to a system that supervises the operation of the airbag, and it is possible to confirm the operation of the airbag through the airbag diagnostic sensor in the airbag control system by attaching diagnostic equipment to the OBD-II connector .

However, each manufacturer of an automobile needs to check whether or not the airbags other than the standardized code are driven for the correct operation of the ECU which controls the driving of the vehicle including the airbag driving, If the airbag diagnosis sensor detects that the airbag is operating while the vehicle is operating with external equipment through the OBD-II terminal, the airbag operation lamp is activated and there is a variation among the automobile manufacturers. However, Flickering, inability to control the vehicle, and the like. Further, when a driver is in an unconscious state due to an automobile collision, there is no way to notify the outside of the vehicle or the driver himself or herself of an accident.

The present invention has been made to solve the above problems.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an airbag device that can more precisely grasp a situation in which an airbag is to be driven in an automobile equipped with an airbag device, The present invention provides an automobile collision detection system and method for automatically detecting an emergency situation of a driver in an automobile collision detection system or an emergency contact designated by a driver by sensing an airbag operation signal upon occurrence thereof.

The present invention also provides an automobile collision detection system and method capable of detecting a collision of an automobile through a change in the presence or absence of failure of devices installed in a vehicle when a failure of an airbag or an airbag deployment signal is not detected It has its purpose.

In order to achieve the above object, the present invention has the following configuration.

The vehicle collision detection system according to an embodiment of the present invention includes a plurality of sensing units for sensing whether each of the plurality of devices provided in the vehicle is normally operated, and the plurality of sensing units are connected to the OBD-II terminal A system for detecting a collision of an automobile, the system comprising: an information processing unit (100) for detecting operation information of an automobile through an ECU, diagnostic trouble codes (DTC) for the plurality of sensing units A sensor information input unit for receiving real time information; A database unit in which comparison data corresponding to real-time information input from the sensor information input unit is stored in advance; Wherein when a shock is detected through the real time information of the G sensor input through the sensor information input unit, a fault diagnostic code for the plurality of sensing units stored in advance in the database unit before the impact is detected, Comparing the fault diagnosis codes for the plurality of sensing units, and determining that the vehicle is collided when at least one of the plurality of sensing units is changed from the normal operation state to the fault state.

The sensor information input unit receives a signal for an airbag operation through CAN (Controller Area Network) communication with the ECU when an airbag diagnostic sensor unit for driving the airbag is installed to assure the safety of an occupant when an accident occurs in the automobile , The control unit determines whether the received signal of the airbag operation is not a signal for airbag drive, a fault diagnostic code for the plurality of sensing units stored in advance in the database unit before the shock detection, The fault diagnostic code for the sensing units of the test system can be compared.

The system according to the present invention may further include a communication controller for receiving the signal determined by the controller and transmitting data to at least one of a preset control server and an emergency contact.

The system according to the present invention is a system in which a signal determined by the control unit is controlled by a communication control unit and transmitted to at least one of a control server and an emergency contact, ; &Lt; / RTI >

The method for monitoring a collision of an automobile according to an embodiment of the present invention includes monitoring a G sensor of an automobile, a G sensor of an automobile collision detection system, or a G sensor of a transmitting / Performing via a reader; When a shock is detected in real time by the G sensor, the detected shock signal is a defined value mapped with information such as a vehicle RPM and a vehicle speed defined in a G sensor information analysis table of a database unit, And transmitting the information to the sensor information input unit; Analyzing the DTC code and transmitting the analyzed information to the control unit after the sensor information input unit receives the information and grasps the sensor value of each of the plurality of sensing units through the DTC reader; Wherein the control unit receives the information and analyzes information on each of the plurality of sensing units analyzed through the DTC code analysis before the shock detection stored in advance in the database unit, Comparing the information of each of the plurality of sensing units and determining that the vehicle has collided when at least one of the plurality of sensing units is changed from a normal operation state to a failure state after the impact detection, .

As described above, according to the present invention, since the airbag driving state can be accurately grasped by using only the airbag driving signal transmitted in a state in which it is not interfered with the signal processing of the ECU for the airbag driving even when connected to an external device, And it is possible to grasp whether or not the airbag device can always be normally driven, so that it is possible to obtain a more advantageous effect of safer automobile operation and minimization of damage in the event of an accident.

The present invention also relates to a method for minimizing personal injury due to faster accident handling, and a method for minimizing personal injury due to faster accident handling by performing communication with an emergency contact stored in advance by a police station, a relief agency, or a user set by a signal driven by an airbag It is possible to prevent an accidental collision.

Particularly, the present invention has the effect of contributing to the promotion of the spread of the system and the culture of safe driving of the automobile by allowing the diagnosis of the airbag driving and the SOS emergency call to be provided in the application of the smart phone.

In addition, the present invention confirms whether there is a failure before or after the detection of the impact of devices installed in a vehicle, for example, a side door sensor, a radiator, a headlight, etc., even in a situation where a failure of the airbag or an airbag deployment signal is not detected. It is possible to detect a collision accident of an automobile with respect to an automobile without an airbag by detecting a crash of an automobile when the state of the automobile is changed from a state of failure to a state of failure, It is possible to minimize the damage caused by the accident, and prevent the second collision accident.

1 is an overall block diagram of an automotive collision detection system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a main part of a vehicle collision detection system according to the present invention. FIG.
3 is a flowchart of a car collision detection process according to an embodiment of the present invention.
FIG. 4 to FIG. 6 are flowcharts of detailed processes for performing a car collision detection process according to the present invention.
FIG. 7 is a flowchart of a process of detecting a collision of an automobile according to another embodiment of the present invention. FIG.
FIG. 8 is a flowchart of a vehicle collision detection process according to another embodiment of the present invention. FIG.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall block diagram of an automobile collision detection system according to an embodiment of the present invention. FIG. 2 is a block diagram of a main part of an automobile collision detection system according to the present invention.

Referring to the drawings, an automobile collision detection system 300 according to the present invention may be installed in an automobile equipped with an airbag diagnostic sensor unit 106 for assuring the safety of an occupant when an accident occurs 1) an airbag is driven, ) It may be installed in a car without an airbag.

Such a vehicle collision detection system 300 is configured to accurately detect collision of an automobile regardless of whether an airbag is attached or not. The collision detection system 300 is connected to a wired or wireless (Bluetooth, wifi, 3G, LTE, etc.) And a transmitting and receiving connection equipment 400. The vehicle collision detection system 300 is connected to an automobile ECU (Electronic Control Unit) 150 and a driving system, a braking system, a steering system, an airbag control system, etc. through an OBD-II connection terminal 200, Diagnosis of standardized Diagnostic Trouble Codes (DTC) and vehicle status of all vehicles by standard. Furthermore, the vehicle collision detection system 300 may directly receive signals for airbag operation through CAN (Controller Area Network) communication with the ECU 150 of the vehicle.

The vehicle collision detection system 300 continuously monitors the OBD-II terminal 200 to see whether the entire operation state of the vehicle system and the airbag system 100 can be normally operated or not, A smart phone, a modem, etc., connected to the mobile communication network 500 via the transmission / reception connection device 400, and transmits a car collision accident in the form of a specific signal, text message, voice, etc. to the recovery center 600 through the control server 600 I will report it.

Further, even if the airbag is not operated normally or the airbag is not provided, the vehicle collision detection system 300 may be configured to detect the collision of the vehicle with the devices (not shown in FIGS. 1 and 2) (Or sensing units), for example, by checking the presence or absence of a failure before and after the impact detection through sensing of a side door sensor, a radiator, a headlight, etc., and if at least one of the devices is changed from a normal operation state to a failure state In the event of a crash. Of course, when the car collision is recognized, the automobile collision detection system 300 accesses the mobile communication network 500 through the transmission / reception equipment 400 of a smart phone, a modem, etc., 600) to report a car crash in the form of a specific signal, a text message, or a voice.

The vehicle collision sensing system 300 includes a sensor information input unit 310, a database unit 320, a control unit 330, and a communication control unit 340.

Specifically, the sensor information input unit 310 may include a G sensor 102 for detecting an impact of a car, a G sensor 356 installed in the vehicle collision detection system, or a G sensor (for example, a smart phone) A G sensor reader 311 for reading the information of the driver 406 and a DTC reader 312 for reading the diagnostic trouble codes of the car.

The database unit 320 includes a G sensor detection information analysis table 321 and a DTC analysis table 322 and an emergency contact table 323 pre-registered by the driver or pre-registered in the car collision detection system 300.

The control unit 330 monitors in real time whether or not the airbag is in a normal driving state by comparing the real time information inputted through each configuration of the sensor information input unit 310 with the comparison data of the database unit 320, (Microcomputer) or a microprocessor for judging whether or not the airbag is actually driven by the information.

Bluetooth 342, Wi-Fi 343, 3G, etc. for the acquisition of the information of the impact detection sensor 406 and the communication connection with the transmitting and receiving connection device 400 according to the communication environment, / LTE 344, a wire 345, a G sensor 346, and the like. That is, the communication control unit 340 refers to a communication structure installed inside the vehicle. When the transmission / reception connection equipment 400 including external communication equipment such as a smart phone or a modem is connected, the transmission / reception connection equipment 400 The control server 600, the emergency contact 700, and the like.

The transmission / reception connection equipment 400 can be selectively added to a smart phone or a modem as described above, and is controlled by the communication control unit 340 to communicate with the control server 600 through the communication network 500 Devices such as GPS 401, Bluetooth 402, Wi-Fi 403, 3G / LTE 404, wire 405, and G sensor 406 are optionally installed for communication.

The communication control unit 340 is configured such that the control server 600, the emergency contact 700, and the like are previously set at the time of leaving the vehicle (or when the communication control unit is installed separately), while the transmission / The control server 600, the emergency contact 700, and the like.

In particular, when the transmission / reception connection equipment is applied as a smart phone, it is possible to provide a system operation program for diagnosis of an airbag drive and an emergency call in the form of an application of the Internet. At this time, the operation of the application can be performed through the mobile communication network 500 using the control server 600 as an operating server.

In addition, i) a case in which an automobile collision accident is detected while an airbag is installed, and ii) a case in which an automobile collision is detected while an airbag is not installed. Here, the configurations of the database unit 320 and the communication control unit 340 are the same or the same in the case of i) to ii), and a description of this configuration will be omitted.

i) Detecting the crash of the vehicle with the airbag installed

The sensor information input unit 310 senses a vehicle impact by the G sensors 102 and 356, and directly receives a signal for air bag operation through CAN communication with the ECU of the vehicle.

If the signal for the airbag operation directly received by the sensor information input unit 310 through the CAN communication is confirmed as a signal for driving the airbag in the state where the vehicle impact is detected by the G sensor, .

If the control unit 330 determines that the airbag operation signal received directly from the sensor information input unit 310 via the CAN communication is not a signal for driving the airbag in the state where the vehicle impact is detected by the G sensor, (Or sensing units) such as a side door sensor, a radiator sensor, or the like provided in the vehicle using the diagnosis code (DTC) received from the sensor information input unit 310 and the DTC analysis table stored in the database unit 320. [ , Headlights, and the like are checked, and when at least one of the devices is changed from a normal operation state to a failure state by comparing the failure information of devices previously stored before the impact detection with the failure of the devices received after the impact detection It is judged to be a car crash.

ii) Detecting a car collision without airbag installed

The sensor information input unit 310 detects a vehicle impact by the G sensors 102 and 356 and receives a diagnostic trouble code (DTC) for the devices provided in the vehicle through the OBD-II terminal.

The control unit 330 may use the failure diagnostic codes of the devices received by the sensor information input unit 310 and the DTC analysis table stored in the database unit 320 in the state where the vehicle impact is detected by the G sensor, It is necessary to check the presence or absence of failure of the side door sensor, the radiator, the headlight, etc., and compare the failure information of the devices previously stored before the impact detection with the failure of the devices received after the impact detection, State, it is determined that the vehicle is a collision. For example, if the vehicle is in a state in which the devices provided in the vehicle are not changed from a normal operation state to a failure state even if the impact of the vehicle is detected by the G sensor, the control unit 330 determines that the vehicle is in a collision accident And if at least one of the devices is changed from a normal operation state to a failure state, it is determined that the vehicle is a collision.

FIG. 3 is a flowchart of an automobile collision detection process according to an embodiment of the present invention, and FIGS. 4 to 6 are flowcharts of a detailed process for performing an automobile collision detection process according to the present invention.

Referring to the drawings, the vehicle collision sensing system 300 includes a driving information reader 313 of an automotive collision sensing system 300 connected to an OBD-II terminal 200 of an automobile when an automobile is started, (S10). &Lt; / RTI >

More specifically, the automobile collision detection system 300 performs monitoring of the automobile ignition operation through the ECU 150 (S11) as shown in FIG. 4, and when the ignition is activated, the automobile RPM detection S13, (S14) to detect whether the vehicle is operating. At this time, if the ignition does not operate, the ignition operation monitoring is continuously executed (S11).

The G sensor 102 of the vehicle, the G sensor 346 of the vehicle collision detection system 300 or the G sensor 406 of the transmission / reception connection device 400 such as a smart phone, a modem, etc., It is detected whether or not an impact is generated in the vehicle (S20).

At this time, when the G sensor reader 311 of the sensor information input unit 310 detects the G sensor impact, the G sensor information analysis table 321 of the database 320 outputs the defined (preset) information . When the information such as the vehicle RPM and the vehicle speed sensed by the G sensor reader 311 is a defined value S40 mapped to the information analysis tables 321 and 322, 106) is called up (S50). If it is not a positive value in the G sensor information analysis table 321, it returns to the impact sensor operation monitoring (S20).

If the sensor value of the airbag diagnostic sensor 106 is determined in the DTC reader 312 of the sensor information input unit 310, the DTC code analysis routine is executed in step S90. Alternatively, if the sensor value of the airbag diagnostic sensor 106 can not be determined, the control unit 330 of the vehicle collision detection system 300 calls the self DTC diagnosis command (S70) to determine the DTC sensor value information, And sent to the analysis routine process (S80).

5, the DTC data analysis is performed (S91). When additional information other than the DTC code defined in the DTC analysis table 322 in the database unit 320 is required (S92), the passenger detection sensor After the data call S93 and the seat belt sensor data call S94, DTC analysis information is collected and sent to the control unit 330. [

At this time, if additional information other than the DTC code defined in the DTC analysis table 322 in the database unit 320 is not needed, the operation returns to the impact sensor operation monitoring (S20).

If the control unit 330 makes an emergency SOS call defined in the DTC analysis table 322 in the database unit 320, the emergency contact emergency SOS call routine is started (S110). If the control unit 330 is not a positive value, And returns to the operation monitoring S20 (S100).

6, in the case of an automobile equipped with a GPS, the control unit 330 determines whether or not the GPS sensor 103 is in the latitude, longitude, or latitude of the GPS 341 of the communication control unit 340 The hardness data or the latitude and longitude data of the GPS 401 of the transmission and reception connection equipment 400 in step S111 and transmits the longitude data and the latitude data to the system in the emergency contact table 323, Emergency contact data is called (S112) and combined with GPS data to form emergency SOS output information (S113)

At this time, if there is a transmission / reception connection device 400 such as a smart phone or a modem connected to the vehicle collision detection system 300, it transmits emergency SOS information to the transmission / reception connection device 400, and if there is no transmission / reception connection device 400 The communication control unit 340 attempts to access the control server 600 through the mobile communication network 500 (S114).

The communication control unit 340 of the transmission / reception equipment 400 or the collision detection system 300 transmits the emergency SOS output information to the control server 600 through the mobile communication network 500 (S117) 600 accesses the map service through the Internet network to inquire and construct the vehicle collision location information (S119). The vehicle collision location information is set in the car collision detection system 300 or combined with the emergency contact information input by the driver in advance, The emergency message is transmitted using the message or voice sending module (S118) and the process is terminated.

FIG. 7 is a flowchart illustrating a process of detecting a collision of an automobile according to another embodiment of the present invention.

Referring to FIG. 7, the automobile collision detection system 300 includes a driving information reader 313 of the automotive collision detection system 300 connected to the OBD-II terminal 200 of the automobile when the automobile is started, (S710). &Lt; / RTI >

Here, the vehicle driving detection routine of step S710 is the same as that of Fig. 4 described above, and a description thereof will be omitted.

The G sensor 102 of the vehicle, the G sensor 346 of the vehicle collision detection system 300 or the G sensor 406 of the transmission / reception connection device 400 such as a smart phone, a modem, etc., (S720) whether or not an impact is generated in the vehicle.

If the G sensor reader 311 of the sensor information input unit 310 detects the G sensor impact at step S730, the G sensor information analysis table 321 of the database 320 stores information defined (preset) . Here, if the information such as the vehicle RPM and the vehicle speed sensed by the G sensor reader 311 is a defined value S740 mapped to the information analysis tables 321 and 322, the signal for the airbag operation is checked (S750) It is determined whether the airbag is driven through the signal for the identified airbag operation (S760).

At this time, the signal check for the airbag operation in step S750 calls the airbag diagnostic sensor 106 sensor value using the DTC reader 312 when information on the airbag operation is received via the DTC, If you can confirm by reading and directly receive the signal about whether the airbag is activated via CAN communication, you can also check the CAN communication directly by signaling whether the airbag is activated or not.

If it is determined in step S760 that the airbag has been driven, if the control unit 330 calls the emergency SOS defined in the DTC analysis table 322 in the database unit 320, the emergency contact SOS call routine is executed (S770).

Here, the emergency SOS call routine process may be the same as that of FIG. 6 described above.

On the other hand, if it is determined in step S760 that the airbag is not driven, that is, if the airbag is not driven due to failure or the impact is such that the airbag is not driven, the other devices (or the airbag diagnostic sensor unit Sensing units) (S780), and checks whether there is a failure in each of the devices in the normal operation state through the DTC analysis of the other devices (S790).

In step S790, information on the devices that normally operate can be known through DTC analysis for each of the other devices provided in the vehicle before the impact detection is performed. After the impact is detected, It is possible to confirm whether the normal operation of the device operates normally or not.

Based on the result of the check in step S790, it is determined whether the malfunctioning device is malfunctioning (S800).

If it is determined in step S800 that at least one of the devices operating normally before the shock detection has failed after the shock detection, the controller 330 determines that the vehicle has collided with the vehicle and the DTC analysis table 322), the emergency contact SOS call routine routine is entered (S770).

7 described above shows a case where a collision accident in which the airbag is normally operated but the airbag is not driven, for example, a collision accident of a stationary car, a side collision accident, etc., and an airbag sensor abnormality, When there is at least one device changed from the normal operation state to the failure state before and after the shock detection, it is determined that the sensed impact is caused by the collision accident.

FIG. 8 is a flowchart illustrating a process of detecting a collision of an automobile according to another embodiment of the present invention.

Referring to FIG. 8, the vehicle collision sensing system 300 includes a driving information reader 313 of the vehicle collision sensing system 300 connected to the OBD-II terminal 200 of the vehicle, (S810). &Lt; / RTI >

Here, the vehicle driving detection routine of step S810 is the same as that of Fig. 4 described above, and a description thereof will be omitted.

The G sensor 102 of the vehicle, the G sensor 346 of the vehicle collision detection system 300 or the G sensor 406 of the transmission / reception connection device 400 such as a smart phone, a modem, etc., (S820) whether or not an impact is generated in the vehicle.

At this time, when the G sensor reader 311 of the sensor information input unit 310 detects the G sensor impact (S830), the DTC of the other devices included in the vehicle is analyzed (S840) (Step S850). In step S850, it is determined whether there is a failure in each of the normal operating devices.

Here, in step S850, information on the devices normally operating can be known through DTC analysis for each of the other devices provided in the vehicle before the impact detection is performed, and after the impact is detected, Check whether the normal operation of the device operates normally.

Based on the result of the check in step S850, it is determined whether the malfunctioning device is malfunctioning (S860).

If it is determined in step S860 that at least one of the devices operating normally before the impact detection has failed after the shock detection, the controller 330 determines that the vehicle has collided with the vehicle and the DTC analysis table 322), the emergency contact SOS call routine routine is started (S870).

The above-described FIG. 8 relates to a collision in an automobile without an airbag. In the case where there is at least one device changed from a normal operation state to a failure state before and after the impact detection, It is judgment.

100: air bag system 101: passenger detection system
102: G sensor 103: GPS sensor
104: Seat belt sensor 105: Passenger's seat airbag off indicator
106: airbag diagnostic sensor unit 107: driver airbag module
108: Passenger's seat airbag module 109: Curtain airbag module
110: Seat belt pretensioner 111: Airbag warning lamp
200: OBD-II terminal 300: vehicle collision detection system
310: sensor information input unit 311: G sensor reader
312: DTC reader 313: Travel information reader
320: Database part 321: G sensor information analysis table
322: DTC analysis table 323: Emergency Contacts table
330: control unit 340: communication control unit
341: GPS 342: Bluetooth
343: Wi-Fi 344: 3G / LTE
345: wire 346: G sensor
400: transmission / reception connection equipment 401: GPS
402: Bluetooth 403: Wi-Fi
404: 3G / LTE 405: Wired
406: G sensor 500: mobile communication network
600: Control server 700: emergency contact

Claims

A vehicle collision detection system comprising a plurality of sensing units for sensing whether each of a plurality of devices provided in an automobile is normally operated and connected to the plurality of sensing units via an OBD-II terminal,
(DTC) for the plurality of sensing units, sensor information for receiving real time information sensed by a G sensor for sensing the impact of the vehicle, An input unit;
A database unit in which comparison data corresponding to real-time information input from the sensor information input unit is stored in advance;
Wherein when a shock is detected through the real time information of the G sensor input through the sensor information input unit, a fault diagnostic code for the plurality of sensing units stored in advance in the database unit before the impact is detected, And a controller for comparing the fault diagnosis codes of the plurality of sensing units and determining that the vehicle has collided when at least one of the plurality of sensing units is changed from a normal operation state to a fault state Automobile collision detection system.

The method according to claim 1,
The sensor information input unit
A signal for airbag operation through CAN (Controller Area Network) communication with the ECU is received when an airbag diagnostic sensor unit for driving the airbag is installed to assure the safety of a passenger,
The control unit
A failure diagnosis code for the plurality of sensing units stored in advance in the database unit before the shock detection if the received signal for the airbag operation is not a signal for airbag drive, And comparing the fault diagnosis code with the fault diagnosis code.

The method according to claim 1,
And a communication controller for receiving the signal determined by the controller and transmitting data to at least one of a predetermined control server and an emergency contact.

The method of claim 3,
And a transmitting and receiving connection equipment for transmitting a signal determined by the control unit to at least one of the control server and the emergency contact controlled by the communication control unit and allowing the user to set and store the emergency contact with the control server Features a car collision detection system.

Performing operation monitoring of the G sensor of the vehicle, the G sensor of the vehicle collision detection system or the G sensor of the transmission / reception connection equipment through the G sensor reader of the sensor information input unit after the automobile operation is started;
When a shock is detected in real time by the G sensor, the detected shock signal is a defined value mapped with information such as a vehicle RPM and a vehicle speed defined in a G sensor information analysis table of a database unit, And transmitting the information to the sensor information input unit;
Analyzing the DTC code and transmitting the analyzed information to the control unit after the sensor information input unit receives the information and grasps the sensor value of each of the plurality of sensing units through the DTC reader;
Wherein the control unit receives the information and analyzes information on each of the plurality of sensing units analyzed through the DTC code analysis before the shock detection stored in advance in the database unit, Comparing information of each of the plurality of sensing units and determining that the vehicle has collided when at least one of the plurality of sensing units is changed from a normal operation state to a failure state after impact detection before impact detection; And the vehicle collision monitoring processing method.

6. The method of claim 5,
The step of transmitting information to the sensor information input unit
Receives a signal for an airbag operation through CAN (Controller Area Network) communication with the ECU of the automobile, transmits information to the sensor information input unit,
The step of transmitting to the control unit
Transmits to the control unit information on whether the signal for airbag operation is a signal for airbag driving or not for airbag driving,
The determining step
Comparing information about each of the plurality of analyzed sensing units before impact detection and information about each of the plurality of sensing units analyzed after impact sensing if the signal for airbag operation is not a signal for airbag drive Characterized in that the vehicle collision monitoring processing method.

6. The method of claim 5,
Performing an emergency SOS call if it is determined that the vehicle has collided
Further comprising:
The emergency SOS call process includes:
The GPS latitude and longitude data of the automobile GPS sensor or the GPS latitude and longitude data of the GPS equipped in the communication control unit of the vehicle collision detection system or the GPS latitude and longitude data of the transmission and reception equipment, Calling emergency contact data stored in advance by the driver and outputting emergency SOS output information in combination with GPS data;
The communication control unit of the transmission / reception connection equipment or the vehicle collision sensing system transmits emergency SOS output information to the control server through the mobile communication network, and the control server accesses the map service through the Internet network to inquire and construct the vehicle collision accident location information And transmitting emergency contact information using the SMS or voice sending module to the emergency contact in combination with the emergency contact information set by the vehicle collision detection system or inputted by the driver in advance.