KR102232068B1 - System and method for transmitting emergency call using neighboring vehicles - Google Patents

Abstract

The present invention proposes an emergency call transmission system and method using a nearby vehicle in which eCall information is received from an accident vehicle through vehicle-to-vehicle communication and other vehicles in normal operation transmit information on the accident vehicle to a center instead. The emergency call transmission system according to the present invention includes: a normal operation determination unit that determines whether a first eCall device mounted on a host vehicle operates normally; An accident information request unit for transmitting accident information including current location information of the own vehicle to at least one other vehicle located within a predetermined distance from the host vehicle when it is determined that the first eCall device is not operating normally; And an accident information transmission unit for transmitting accident information of the own vehicle to the PSAP in place of the first eCall device using a second eCall device mounted on another vehicle.

Description

Emergency call transmission system and method using neighboring vehicles {System and method for transmitting emergency call using neighboring vehicles}

The present invention relates to a system and method for requesting rescue for a vehicle accident (eCall). More particularly, it relates to a system and method for requesting rescue for a vehicle accident, including the current location of the vehicle.

The eCall system transmits vehicle information such as accident information or accident information manually to the center (PSAP; Public Safety Answering Point) through the eCall-equipped vehicle and 2G/3G communication network. Vehicles equipped with eCall directly receive GPS signals and communicate with the center through its own modem, such as transmitting data and making calls to the center.

The eCall system is equipped with a system that sends information on the location and time of the accident and vehicle information for emergency response to the center through the local communication network in case of an emergency. The eCall system has its own modem, but when the modem or modem antenna is damaged, there is no way to send information to the center.

Korean Patent Publication No. 2006-0099208 proposes a device for automatically notifying a vehicle accident. However, since this device requests emergency rescue assistance depending on whether or not the airbag is deployed, the above-described problem cannot be solved.

The present invention has been devised to solve the above problem, and receives eCall information from the accident vehicle through vehicle-to-vehicle communication (V2V communication), and transmits the information of the accident vehicle to the center (PSAP) on behalf of another vehicle in normal operation. An object of the present invention is to propose an emergency call transmission system and method using nearby vehicles.

However, the object of the present invention is not limited to the above-mentioned matters, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

The present invention has been devised to achieve the above object, and includes: a normal operation determination unit for determining whether a first eCall device mounted on an own vehicle operates normally; An accident information request unit for transmitting accident information including current location information of the own vehicle to at least one other vehicle located within a predetermined distance from the host vehicle when it is determined that the first eCall device is not operating normally; And an accident information transmission unit that transmits accident information of the own vehicle to a Public Safety Answering Point (PSAP) in place of the first eCall device using a second eCall device mounted on the other vehicle. We propose an emergency call transmission system using a vehicle.

Preferably, the normal operation determination unit includes: a response request unit for requesting a response at a first time interval from a communication unit transmitting the accident information to the PSAP; And a response-based determination unit determining that the first eCall device does not operate normally if there is no response from the communication unit for a second time.

Preferably, the accident information request unit selects a specific other vehicle using speed information of other vehicles when the other vehicle is at least two, and transmits the accident information including the current location information of the own vehicle to the specific other vehicle. do.

Preferably, the accident information request unit requests the normal operation determination result of the eCall devices mounted on the other vehicles when the other vehicle is at least two, and the eCall device based on the normal operation determination result The accident information including the current location information of the own vehicle is transmitted to another vehicle that is operating normally.

Preferably, the accident information transmission unit, while transmitting the accident information of the own vehicle, the reception request unit for requesting a response to whether or not to receive the PSAP; And if there is no response from the PSAP for a third time, the accident information of the own vehicle is transmitted back to the PSAP. If there is a response from the PSAP within the third time, the And a response-based message transmission unit for transmitting an accident information acknowledgment message to the host vehicle.

Preferably, when the accident information request unit receives accident information including the current location information of the first other vehicle from the first other vehicle, the accident information including the current location information of the own vehicle and the current location information of the first other vehicle is The information is transmitted to the second vehicle.

In addition, the present invention comprises the steps of determining whether a first eCall device mounted on an own vehicle operates normally; Transmitting accident information including current location information of the own vehicle to at least one other vehicle located within a predetermined distance from the host vehicle when it is determined that the first eCall device is not operating normally; And transmitting accident information of the own vehicle to a Public Safety Answering Point (PSAP) in place of the first eCall device using a second eCall device mounted on the other vehicle. We propose an emergency call transmission method using.

Preferably, the determining comprises: requesting a response from a communication unit transmitting the accident information to the PSAP at a first time interval; And determining that the first eCall device does not operate normally if there is no response from the communication unit during the second time period.

Preferably, the transmitting of the accident information includes selecting a specific other vehicle using speed information of other vehicles when the other vehicle is at least two, and including the current location information of the own vehicle as the specific other vehicle. Transmit information.

Preferably, in the transmitting of the accident information, when there are at least two other vehicles, requests for normal operation determination results of eCall devices mounted on the other vehicles are requested, based on the normal operation determination result. The eCall device transmits accident information including the current location information of the own vehicle to another vehicle operating normally.

Preferably, the transmitting to the PSAP includes: transmitting accident information of the own vehicle and requesting a response to the PSAP as to whether or not to receive it; And if there is no response from the PSAP for a third time, the accident information of the own vehicle is transmitted back to the PSAP. If there is a response from the PSAP within the third time, the And transmitting an accident information acknowledgment message to the host vehicle.

Preferably, in the transmitting of the accident information, when accident information including the current location information of the first other vehicle is received from the first other vehicle, the current location information of the own vehicle and the current location information of the first other vehicle Transmit accident information including the to the second vehicle.

The present invention receives eCall information from the accident vehicle through vehicle-to-vehicle communication (V2V communication) and transmits the information of the accident vehicle to the center (PSAP) on behalf of another vehicle in normal operation, thereby obtaining the following effects.

First, in the existing eCall, the connection to the center (PSAP) is not possible in an urgent situation due to a connection with an antenna or damage to the modem, which may pose a risk to the driver. In addition to emergency contact through a modem, the present invention can prepare for an abnormal modem function by using an eCall system of a nearby vehicle.

Second, the present invention can enhance the stability and reliability of the eCall system, and when the eCall and V2V communication systems are simultaneously mandatory, the eCall function can be supplemented and driver safety can be improved.

1 is a schematic configuration diagram of a communication system between eCalls according to an embodiment of the present invention.
2 is a reference diagram for explaining a method of determining the presence or absence of a 2G/3G network communication failure of an eCall system.
3 is a flowchart illustrating a method of determining whether or not there is a 2G/3G network communication failure of an eCall system.
FIG. 4 is a reference diagram for explaining a method of determining which vehicle around an accident vehicle is to give priority to an emergency signal when an eCall is returned from a nearby vehicle.
FIG. 5 is a flowchart illustrating a method of determining which vehicles around an accident vehicle are given an emergency signal as a priority when an eCall is returned from a nearby vehicle.
6 is a detailed configuration diagram of a communication system between eCalls according to an embodiment of the present invention.
7 is a reference diagram for explaining a method of returning an eCall system when a plurality of surrounding accident vehicles occurs due to a cascading collision.
8 is a flowchart illustrating a process of an eCall unit performing its own eCall process according to an embodiment of the present invention.
9 is a flowchart illustrating a process in which an eCall unit according to an embodiment of the present invention performs an indirect eCall process of a vehicle in which a modem has failed.
10 is a block diagram schematically showing an emergency call transmission system according to a preferred embodiment of the present invention.
11 is a flowchart schematically illustrating a method for transmitting an emergency call according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to elements of each drawing, it should be noted that the same elements have the same numerals as possible even if they are indicated on different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, a preferred embodiment of the present invention will be described below, but the technical idea of the present invention is not limited or limited thereto, and may be modified and variously implemented by those skilled in the art.

The main function of eCall is to inform the center of vehicle accident information, and this function is possible only when the modem is operating normally. When the modem or antenna connection line is physically damaged or the center cannot be contacted due to a modem communication S/W error, accident information is transmitted to nearby vehicles through vehicle-to-vehicle communication, and the surrounding vehicle receiving the accident information is its own eCall system. It is an object of the present invention to deliver accident information and contact (indirect eCall function) to the center instead through through.

1 is a schematic configuration diagram of a communication system between eCalls according to an embodiment of the present invention.

The main communication between the eCall unit and the center (PSAP) uses the 2G/3G communication network 130 through a modem in the eCall (ⓐ). Therefore, the eCall unit transmits an MSD message to the PSAP 140 when a vehicle accident occurs.

In the accident vehicle 110, the microcomputer inside the eCall monitors the state of the modem. For monitoring, check whether the signal is transmitted/received between the antenna and the modem and the status of the modem module itself.

If the 2G/3G communication network becomes unavailable while the micom in eCall checks the modem and antenna signals (modem failure, poor connection between modem and antenna (main and backup antenna), etc.), the eCall unit performs vehicle-to-vehicle communication (V2V). It switches to the mode to be used. At this time, vehicles 120 around the accident vehicle 110 must have the same V2V and eCall systems (ⓑ, ⓒ).

2 is a reference diagram for explaining a method of determining the presence or absence of a 2G/3G network communication failure of an eCall system.

Whether or not 2G/3G network communication is possible in the eCall system can be determined whether or not there is a failure in the network communication part by checking the status of the modem 220 and the antenna signal. Hereinafter, a method of determining a modem failure (operation failure) of the eCall system 200 will be described.

Whether the modem 220 operates normally is monitored periodically (constant time intervals) through communication between the MICOM 210 and the modem 220. The reason why the modem 220 does not operate properly is as follows.

First, the modem hardware (parts, etc.) is bad.

Second, the modem operation is poor due to errors in the modem module software and control software.

If the modem 220 does not operate properly for the above two reasons, it can be known as the contents of communication between the microcomputer 210 and the modem 220 periodically.

Next, a method of determining a failure of the eCall system 200 using an antenna signal will be described.

Even if the modem 220 operates normally, even if a cable disconnection between the antenna and the modem 220 or a weak antenna signal is regarded as the same situation as the 2G/3G network communication failure, it is determined as a modem failure (operation failure).

When a disconnection with the antenna or a signal is less than a certain standard, the modem 220 informs the micom 210 of the antenna signal of 0 (zero) and a signal value less than the standard through communication, so that the micom 210 is connected to the antenna and 2G. /3G network communication is judged to be impossible.

3 is a flowchart illustrating a method of determining whether or not there is a 2G/3G network communication failure of an eCall system.

The micom constituting the eCall unit of the own vehicle periodically communicates with the modem to monitor the modem status in real time (S310). At this time, if communication is not performed, the modem status is not known and modem control is impossible, so the eCall unit of the host vehicle switches to the V2V communication mode (S330).

When the eCall system switched to the V2V communication use mode detects an accident or an emergency eCall button is pressed, information of the accident vehicle (location information, etc.) going out through the modem is transmitted to nearby vehicles through V2V communication.

When the vehicle's eCall unit is switched to the V2V use mode, when a vehicle accident is detected through the airbag operation signal or the manual eCall button is pressed, the microcomputer will send the data (accident vehicle information) to the center through the modem. -Transmit to H/U through CAN.

The information sent to the MM-CAN is vehicle information and vehicle specific modem information. The reason for sending the vehicle specific modem information to the eCall unit of another vehicle through V2V is that the eCall unit of the other vehicle receives the information of the accident vehicle instead of its own and informs it to the center instead. This is to let the Center (PSAP) know if this accident has occurred.

The H/U in the accident vehicle receives information from the eCall unit and transmits it to nearby vehicles through V2V communication (Wave communication).

On the other hand, even if the communication between the microcomputer and the modem is normal, if it is determined that the antenna signal is disconnected or the state of the 2G/3G communication network is less than the communication available level (S340), the eCall unit of the host vehicle switches to the V2V communication mode (S330).

When it is determined that the antenna signal is not disconnected and the state of the 2G/3G communication network exceeds the communication available level (S340), the eCall unit of the host vehicle switches to the modem communication mode (S350).

FIG. 4 is a reference diagram for explaining a method of determining which vehicle around an accident vehicle is to give priority to an emergency signal when an eCall is returned from a nearby vehicle.

When the surrounding vehicles 420 and 430 capable of indirect eCall communication respond to the accident vehicle 410 via V2V, the response data includes state information of surrounding vehicles capable of indirect eCall communication and responds. That is, the response data is sent including information on the current moving speed of the vehicle and the modem status of the vehicle.

Then, the accident vehicle 410 transmits an emergency signal to the vehicle 430 having the slowest vehicle movement speed among response data of the surrounding vehicles 420 and 430 capable of indirect eCall.

When the surrounding vehicles 420 and 430 pass by the accident vehicle 410, a reply to the eCall indirect communication function can be made in an area less away from the accident location, so the vehicle speed is prioritized from the vehicle 430 having the lowest speed. And deliver an emergency signal.

Reference numeral 440 denotes a process in which the accident vehicle 410 transmits indirect eCall communication to the surrounding vehicles 420 and 430. Further, reference numeral 450 shows a process in which the surrounding vehicle B 430 responds to the accident vehicle 410 for an indirect eCall. In addition, reference numeral 460 shows a process in which the surrounding vehicle A 420 responds to the accident vehicle 410 for an indirect eCall. Further, reference numeral 470 denotes a process in which the accident vehicle 410 transmits an emergency signal to the surrounding vehicle B 430 according to the priority. At this time, a vehicle with a relatively slower vehicle speed is given priority. In FIG. 4, since the surrounding vehicle B 430 is slower by 20 km/h than the surrounding vehicle A 420, priority is given to the surrounding vehicle B 430.

Among the data returned from the neighboring vehicles 420 and 430, if the modem state is in a faulty state or the antenna signal is at a level below communication availability, it is excluded from the neighboring vehicles to which the emergency signal is transmitted irrespective of the priority according to the vehicle speed.

FIG. 5 is a flowchart illustrating a method of determining which vehicles around an accident vehicle are given an emergency signal as a priority when an eCall is returned from a nearby vehicle.

Referring to FIG. 5, when response data is received from surrounding vehicles (S510), the accident vehicle determines whether the modem status of the surrounding vehicle is normal based on modem status information included in the response data (S520).

If it is determined that the modem state of the surrounding vehicle is abnormal, the accident vehicle discards the vehicle speed information of the surrounding vehicle whose modem state is abnormal (S530).

Thereafter, the accident vehicle temporarily stores vehicle speed information of nearby vehicles whose modem status is normal (S540).

Thereafter, the accident vehicle compares vehicle speed information of the surrounding vehicles to determine a vehicle with a high priority (eg, priority is given to a nearby vehicle with a relatively slow vehicle speed) (S550).

After that, the accident vehicle transmits an emergency signal to the surrounding vehicle with the highest priority (S560).

6 is a detailed configuration diagram of a communication system between eCalls according to an embodiment of the present invention.

The first H/U 610 is H/U provided in another vehicle, and the second H/U 620 is H/U provided in the own vehicle. The eCall unit 650 and the H/U 620 of the own vehicle transmit and receive mutual data through M/M-CAN (multimedia CAN). The eCall unit 650 of the own vehicle displays eCall status, updates, and the like on the H/U monitor.

The airbag control unit (ACU) 630 outputs an A/Bag Sig. (a signal indicating that the airbag has operated) to the eCall unit 650 while the airbag operates in the event of a vehicle collision. The eCall unit 650 recognizes that a vehicle collision has occurred with this signal, and notifies the center (PSAP) of the vehicle accident through the modem 655. The airbag signal is directly output to the eCall unit 650 and at the same time, it notifies that the airbag has operated through C-CAN (chassis CAN) (double complementary signal transmission).

The MICOM 652 determines whether there is a vehicle accident, receives sensor information of the vehicle, etc., and controls the operation of the GNSS module 656 or modem 655, the microphone 641/amplifier 651, and the like.

BUB (Back Up Battery) 654 is a built-in battery for use as a backup power source for the eCall unit 650 in a situation where the power supply 653 of the eCall unit 650 cannot function normally.

The modem 655 notifies the center (PSAP) of a vehicle accident through a 2G/3G communication network, and enables the center to make an emergency phone call. Externally, it is normally connected to the Main Shark antenna 662, but if the network signal from the Main Shark antenna 662 is not detected, the connection between the modem and the antenna is switched to the 2G/3G back up antenna (661). Even if the antenna 662 is broken or disconnected, it has a double complementary structure to send an emergency signal.

The microphone 641, the amplifier 651, the speaker 642, and the like are voice communication devices for emergency calls with the center (PSAP) after a vehicle accident.

The H/U 610 of the surrounding vehicle recognizes that the content received through V2V communication is the eCall content of the accident vehicle, and sends the accident vehicle eCall information to its eCall unit through the MM-CAN.

Then, the H/U 610 of the surrounding vehicle sends the received eCall information of the accident vehicle to the eCall unit, and the eCall unit notifies the eCall information and modem specific information of the accident vehicle to the center through its modem.

The center recognizes that the eCall information was sent from the surrounding vehicle instead of the accident vehicle, and sends back to the surrounding vehicle that the eCall content has been received.

When a nearby vehicle receives the center reception reply information, if the vehicle is near the accident vehicle, it notifies the accident vehicle that the eCall center has been accepted through V2V communication.

7 is a reference diagram for explaining a method of returning an eCall system when a plurality of surrounding accident vehicles occurs due to a cascading collision.

When all the surrounding vehicles (710, 720, 730) are driving their eCall system due to an accident caused by a cascading collision, when an indirect eCall request comes from vehicle C (730) with a broken modem, vehicle A with a normal modem status. Vehicle A (710), which is relatively close to vehicle C (730) among vehicle B (710) and vehicle B (720), separates communication with the center 750 and proceeds with the process. That is, the vehicle A 710 proceeds with its own eCall process, while on the other hand, the indirect eCall process of the vehicle in which the modem has failed. At this time, the vehicle A 710 may first proceed with its own eCall process and then perform an indirect eCall process of the vehicle with a faulty modem later.

When whether or not to report the accident information of the vehicle C 730 is received from the center 750, the vehicle A 710 returns to the vehicle C 730 that the indirect eCall is normally reported.

8 is a flowchart illustrating a process of an eCall unit performing its own eCall process according to an embodiment of the present invention.

When the engine is turned on, the eCall unit inputs vehicle information and GPS information (S805).

Thereafter, the eCall unit determines whether the modem operates normally and whether the antenna signal is normal (S810).

When it is determined that the modem operates normally and the antenna signal is also normal, the eCall unit switches to the modem communication mode (S815). On the other hand, if it is determined that the modem does not operate normally or the antenna signal is not normal, the eCall unit switches to the V2V communication mode (S820).

Thereafter, the eCall unit determines whether an airbag operation signal has been input (S825).

If it is determined that the airbag operation signal has not been input, the eCall unit determines whether the eCall emergency button has been input (S830). If it is determined that the eCall emergency button has not been input, the eCall unit performs again from step S805.

When it is determined that the airbag operation signal is input or the eCall emergency button is input, it is determined whether the eCall unit is in a modem communication mode (S835).

If it is determined that it is in the modem communication mode, the eCall unit notifies its own accident information to the center through the modem communication mode (S840). On the other hand, if it is determined that it is not the modem communication mode, the eCall unit makes the surrounding vehicles notify the center of their accident information through the V2V communication mode (S845, S850).

9 is a flowchart illustrating a process in which an eCall unit according to an embodiment of the present invention performs an indirect eCall process of a vehicle in which a modem has failed.

When the indirect eCall is requested by V2V communication from the vehicle in which the modem has failed after the engine is turned on (S910), the eCall unit receives vehicle information of the vehicle in which the modem has failed (S920).

Thereafter, the eCall unit receives eCall information of the vehicle in which the modem has failed to the center through the modem communication mode (S930).

Thereafter, when a reply is received from the center indicating that the eCall information of the vehicle with the modem failure has been received (S940), the eCall unit returns the completion of the indirect eCall to the vehicle with the modem failure through the V2V communication mode (S950).

If there is no communication ACK from the vehicle where the modem is broken, the eCall unit repeats 5 times to return the completion of the indirect eCall, and then terminates the indirect eCall process.

One embodiment of the present invention has been described above with reference to FIGS. 1 to 9. Hereinafter, preferred embodiments of the present invention that can be inferred from such an embodiment will be described. 10 is a block diagram schematically showing an emergency call transmission system according to a preferred embodiment of the present invention.

Referring to FIG. 10, the emergency call transmission system 10 includes a normal operation determination unit 20, an accident information request unit 30, an accident information transmission unit 40, and a main control unit 50. The normal operation determination unit 20 and the accident information request unit 30 are provided in the own vehicle in which the accident has occurred, and the accident information transmission unit 40 is provided in vehicles surrounding the vehicle in which the accident has occurred. The main control unit 50 controls communication between the own vehicle in which the accident has occurred and vehicles surrounding the vehicle, and is provided in the accident vehicle.

The normal operation determination unit 20 performs a function of determining whether the first eCall device mounted on the host vehicle operates normally.

The normal operation determination unit 20 may include a response request unit 21 and a response-based determination unit 22. The response requesting unit 21 performs a function of requesting a response at a first time interval to a communication unit that transmits accident information to the PSAP. The response-based determination unit 22 performs a function of determining that the first eCall device does not operate normally if there is no response from the communication unit during the second time period.

When it is determined that the first eCall device is not operating normally, the accident information request unit 30 transmits accident information including the current location information of the own vehicle to at least one other vehicle located within a predetermined distance from the own vehicle. Carry out.

When there are at least two other vehicles, the accident information request unit 30 selects a specific other vehicle using speed information of other vehicles, and may transmit accident information including current location information of the own vehicle to the specific other vehicle. In this embodiment, the accident information request unit 30 may select another vehicle having the slowest speed.

When there are at least two other vehicles, the accident information request unit 30 requests the results of determining the normal operation of eCall devices installed in other vehicles, and based on the result of determining the normal operation, the eCall device operates normally. Accident information including current location information of the own vehicle may be transmitted to the vehicle.

When the accident information request unit 30 receives accident information including the current location information of the first other vehicle from the first other vehicle, the accident information including the current location information of the own vehicle and the current location information of the first other vehicle is transmitted to the second vehicle. It can be transmitted to other vehicles.

The accident information transmission unit 40 performs a function of transmitting accident information of the own vehicle to a Public Safety Answering Point (PSAP) in place of the first eCall device using a second eCall device mounted on another vehicle.

The accident information transmission unit 40 may include a reception request unit 41 and a response-based message transmission unit 42.

The reception request unit 41 performs a function of requesting a response to the PSAP for reception while transmitting accident information of the own vehicle.

The response-based message transmission unit 42 transmits the accident information of the own vehicle back to the PSAP if there is no response from the PSAP for the third time, and if there is a response from the PSAP within the third time, the It performs the function of transmitting an accident information acknowledgment message to the own vehicle.

Next, a method of operating the emergency call transmission system will be described. 11 is a flowchart schematically illustrating a method for transmitting an emergency call according to a preferred embodiment of the present invention.

First, the normal operation determination unit 20 determines whether the first eCall device mounted on the host vehicle operates normally (S71).

If it is determined that the first eCall device is not operating normally, the accident information request unit 30 transmits accident information including the current location information of the own vehicle to at least one other vehicle located within a predetermined distance from the own vehicle ( S72).

Thereafter, the accident information transmission unit 40 transmits the accident information of the own vehicle to the Public Safety Answering Point (PSAP) in place of the first eCall device using the second eCall device mounted on the other vehicle (S73).

Even if all the components constituting the embodiments of the present invention described above are described as being combined into one or operating in combination, the present invention is not necessarily limited to these embodiments. That is, as long as it is within the scope of the object of the present invention, one or more of the components may be selectively combined and operated. In addition, although all the components may be implemented as one independent hardware, a program module that performs some or all functions combined in one or more hardware by selectively combining some or all of the components. It may be implemented as a computer program having In addition, such a computer program is stored in a computer readable media such as a USB memory, a CD disk, a flash memory, etc., and is read and executed by a computer, thereby implementing an embodiment of the present invention. The recording medium of the computer program may include a magnetic recording medium, an optical recording medium, a carrier wave medium, and the like.

In addition, all terms, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art, unless otherwise defined in the detailed description. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related technology, and are not interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention belongs can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (12)

A normal operation determination unit that determines whether the first eCall device mounted on the host vehicle operates normally;
An accident information request unit for transmitting accident information including current location information of the own vehicle to at least one other vehicle located within a predetermined distance from the host vehicle when it is determined that the first eCall device is not operating normally; And
An accident information transmission unit for transmitting accident information of the own vehicle to a Public Safety Answering Point (PSAP) in place of the first eCall device using a second eCall device mounted on the other vehicle,
The accident information request unit selects a specific other vehicle using speed information of other vehicles when there are at least two other vehicles, and transmits accident information including current location information of the own vehicle to the specific other vehicle,
The accident information request unit selects another vehicle having the slowest speed among the other vehicles. The method of claim 1,
The normal operation determination unit,
A response requesting unit for requesting a response at a first time interval to a communication unit transmitting the accident information to the PSAP; And
Response-based determination unit that determines that the first eCall device does not operate normally if there is no response from the communication unit for a second time
Emergency call transmission system using a surrounding vehicle comprising a. delete The method of claim 1,
When there are at least two other vehicles, the accident information requesting unit requests a result of determining normal operation of eCall devices mounted on the other vehicles, and the eCall device operating normally based on the normal operation determination result. An emergency call transmission system using a nearby vehicle, characterized in that transmitting accident information including current location information of the own vehicle to the vehicle. The method of claim 1,
The accident information transmission unit,
A reception request unit for transmitting the accident information of the own vehicle and requesting a response to whether or not the PSAP receives the accident information; And
If there is no response from the PSAP for the reception status during the third time, the accident information of the host vehicle is transmitted back to the PSAP, and if there is a response from the PSAP within the third time, the accident of the host vehicle Response-based message transmission unit for transmitting an information acknowledgment message to the host vehicle
Emergency call transmission system using a surrounding vehicle comprising a. The method of claim 1,
When the accident information request unit receives accident information including the current location information of the first other vehicle from the first other vehicle, the accident information including the current location information of the host vehicle and the current location information of the first other vehicle is second Emergency call transmission system using a surrounding vehicle, characterized in that the transmission to another vehicle. Determining whether the first eCall device mounted on the host vehicle operates normally;
Transmitting accident information including current location information of the own vehicle to at least one other vehicle located within a predetermined distance from the host vehicle when it is determined that the first eCall device is not operating normally; And
Transmitting accident information of the own vehicle to a Public Safety Answering Point (PSAP) on behalf of the first eCall device using a second eCall device mounted on the other vehicle,
In the transmitting of the accident information, when there are at least two other vehicles, selecting a specific other vehicle using speed information of other vehicles, and transmitting accident information including the current location information of the own vehicle to the specific other vehicle. ,
The selected specific other vehicle is another vehicle having the slowest speed among the other vehicles. The method of claim 7,
The determining step,
Requesting a response at a first time interval to a communication unit that transmits the accident information to the PSAP; And
Determining that the first eCall device does not operate normally if there is no response from the communication unit for a second time
Emergency call transmission method using a surrounding vehicle comprising a. delete The method of claim 7,
In the step of transmitting the accident information, when the other vehicles are at least two, requests for normal operation determination results of eCall devices installed in the other vehicles are requested, and the eCall device is normally operated based on the normal operation determination result. An emergency call transmission method using a nearby vehicle, characterized in that transmitting accident information including current location information of the own vehicle to another vehicle operating. The method of claim 7,
The step of transmitting to the PSAP,
Transmitting the accident information of the own vehicle and requesting a response to the PSAP as to whether or not to receive it; And
If there is no response from the PSAP for the reception status during the third time, the accident information of the host vehicle is transmitted back to the PSAP, and if there is a response from the PSAP within the third time, the accident of the host vehicle Transmitting an information acknowledgment message to the host vehicle
Emergency call transmission method using a surrounding vehicle comprising a. The method of claim 7,
In the transmitting of the accident information, when accident information including the current location information of the first other vehicle is received from the first other vehicle, the accident information including the current location information of the own vehicle and the current location information of the first other vehicle An emergency call transmission method using a surrounding vehicle, characterized in that transmitting to the second other vehicle.

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