KR102317239B1 - eCall system and the operating method thereof - Google Patents

Abstract

A method of operating an eCall system according to an aspect of the present invention includes a first vehicle, (1) arrival time of a signal from a transmission sensor of a second vehicle in which the first reception sensor and the second reception sensor are within a predetermined distance from the first vehicle receiving information; (2) calculating and storing distance information between the first vehicle and the second vehicle using the arrival time information; (3) deploying the airbag when colliding with the second vehicle; (4) selecting the distance information stored in step (2) before the collision in step (3) at regular time intervals; (5) calculating a collision angle, a collision site, and a collision speed using the distance selected in step (4); (6) inquiring from the emergency rescue center server, the vehicle body information of the second vehicle by using the collision location information; (7) calculating a collision injury score by using the collision angle, the collision site, the collision speed, and the amount of impact information calculated from the vehicle body information; and (8) determining, by the PSAP server, the scale and priority of emergency dispatch according to the calculated crash injury score.

Description

An eCall system and the operating method thereof

The present invention relates to an eCall (Emergency Call System) system and an operating method thereof.

In general, the eCall system refers to a system that transmits accident information data to an accident reception center when an accident occurs, and then a voice channel is connected between the accident person and the sensor operator to determine the accident situation.

The eCall system is a system that sends vehicle information such as vehicle location, speed, and direction to nearby Public Answering Points (PSAPs) in the event of a vehicle accident so that rapid and efficient emergency measures can be taken.

It has been legalized in Europe and Russia since 2015, and each OEM company is fighting for development.

The eCall system consists of an In-Vehicle System (IVS) directly in charge of a terminal, a Mobile Network Operator (MNO) in charge of an intermediate connection, and a PSAP that receives and processes terminal information.

The core function of IVS is to create and deliver MSD (Minimum Set of Data). When an accident occurs, IVS collects vehicle information, generates 140 Bytes MSD message in the vehicle, and transmits it to PSAP through Modem.

However, when an AIR deployment signal is input from the vehicle ECU to the eCall unit when an accident occurs, the eCall function is activated, but there is a problem in that the signal is not input due to the AirBag not being deployed depending on the accident condition.

An object of the present invention is to provide an eCall system and a method for operating the same in order to solve the above problems.

Another object of the present invention is to provide information for determining the priority or size of dispatch when dispatching an emergency rescue by determining the severity level of the accident and the degree of injury to the occupant when a vehicle accident occurs.

Objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

A method of operating an eCall system according to an aspect of the present invention for achieving the above object is a first vehicle, (1) a first receiving sensor and a second receiving sensor, a second vehicle within a predetermined distance from the first vehicle Receiving the arrival time information of the signal from the transmission sensor of the; (2) calculating and storing distance information between the first vehicle and the second vehicle using the arrival time information; (3) deploying the airbag when colliding with the second vehicle; (4) selecting the distance information stored in step (2) before the collision in step (3) at regular time intervals; (5) calculating a collision angle, a collision site, and a collision speed using the distance selected in step (4); (6) inquiring from the emergency rescue center server, the vehicle body information of the second vehicle by using the collision location information; and (7) calculating a collision injury score using the impact angle information, the collision site, the collision speed, and the amount of impact calculated from the vehicle body information, and transmitting the calculated collision injury score to the PSAP server. .

The predetermined distance in step (1) may be 10 m.

The collision angle is a value obtained by dividing a difference between a distance between the first receiving sensor and the transmitting sensor and a distance between the second receiving sensor and the transmitting sensor by a distance between the first receiving sensor and the second receiving sensor It may be a value multiplied by 90.

The collision speed is obtained using a first speed obtained by using the distance between the first receiving sensor and the transmitting sensor at a predetermined time interval, and a distance between the second receiving sensor and the transmitting sensor at a predetermined time interval. It may be an average value of the second speed.

The collision site is calculated by the initial positions of the first vehicle and the second vehicle, the collision speed, and the collision angle, and according to the collision site, collision of a driver's seat, a passenger seat, a left rear seat and a right rear seat Injury score can be calculated.

The method may further include, by the PSAP server, determining the scale and priority of emergency dispatch according to the collision injury score transmitted from the first vehicle.

Meanwhile, the eCall system according to another aspect of the present invention is an eCall system including a first vehicle, a second vehicle, a PSAP server, and an emergency rescue center server, wherein the second vehicle includes a transmission sensor, The first vehicle includes a first reception sensor and a second reception sensor, receives a signal from the transmission sensor, and calculates a distance from the second vehicle, a collision angle, a collision speed, a collision site, and an amount of collision, Transmits the collision injury score calculated based on the calculated amount of impact to the PSAP server, the PSAP server transmits the accident severity level calculated based on the received collision injury score to the emergency rescue center server, and the emergency rescue center server It is to calculate the emergency rescue priority and the emergency rescue dispatch size according to the received accident severity.

The first vehicle further includes a voice receiver, wherein the voice receiver is equipped with a dual microphone, classifies men, women, and children from human voices using the dual microphones, and a driver's seat and a passenger seat according to the location where the voice is generated , to identify who is located in the left rear seat and the right rear seat.

The collision angle is a value obtained by dividing a difference between a distance between the first receiving sensor and the transmitting sensor and a distance between the second receiving sensor and the transmitting sensor by a distance between the first receiving sensor and the second receiving sensor It may be a value multiplied by 90.

The collision speed is obtained using a first speed obtained by using the distance between the first receiving sensor and the transmitting sensor at a predetermined time interval, and a distance between the second receiving sensor and the transmitting sensor at a predetermined time interval. It may be an average value of the second speed.

The collision site is calculated by the initial positions of the first vehicle and the second vehicle, the collision speed, and the collision angle, and according to the collision site, collision of a driver's seat, a passenger seat, a left rear seat and a right rear seat It may be calculating an injury score.

The PSAP server determines the scale and priority of emergency dispatch according to the collision injury score transmitted from the first vehicle, calculates the severity of the accident according to the determination result, and transmits it to the emergency rescue center server.

According to the present invention, when an accident occurs, by determining the severity of the accident and the degree of injury of the occupant, priority is given when dispatching an emergency rescue and the size of the rescue team is predicted to improve the efficiency of emergency rescue and take appropriate measures to prevent secondary accidents or secondary accidents It is effective in preventing damage.

In addition, it is possible to improve the accident detection effect by adding a sensing signal that can determine whether there is an accident in addition to the AirBag signal.

1 is an exemplary diagram for explaining the configuration of a computer system in which the operating method of the eCall system according to the present invention is implemented.
Figure 2 is a flow chart for explaining the operation method of the eCall system according to an embodiment of the present invention.
3 is an exemplary diagram for explaining a method of operating an eCall system according to an embodiment of the present invention.
4 is a block diagram of an eCall system according to the present invention.
5 is an exemplary view for explaining the impact score for each seat according to the collision site according to a partial embodiment of the present invention.
6 is an exemplary diagram for explaining a method of operating an eCall system according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be embodied in various different forms, only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. On the other hand, the terms used herein are for the purpose of describing the embodiments and are not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and/or "comprising" refers to the presence of one or more other components, steps, operations and/or elements mentioned. or addition is not excluded.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary diagram for explaining the configuration of a computer system in which an operating method of an eCall system according to the present invention is implemented.

Meanwhile, the method of operating the eCall system according to an embodiment of the present invention may be implemented in a computer system or recorded in a recording medium. 1 , the computer system includes at least one processor 110 , a memory 120 , a user input device 150 , a data communication bus 130 , a user output device 160 , Storage 140 may be included. Each of the above-described components performs data communication through the data communication bus 130 .

The computer system may further include a network interface 170 coupled to the network 180 . The processor 110 may be a central processing unit (CPU) or a semiconductor device that processes instructions stored in the memory 130 and/or the storage 140 .

The memory 120 and the storage 140 may include various types of volatile or non-volatile storage media. For example, the memory 120 may include a ROM 123 and a RAM 126 .

Accordingly, the operating method of the eCall system according to an embodiment of the present invention may be implemented as a computer-executable method. When the operating method of the eCall system according to the embodiment of the present invention is performed in a computer device, computer readable instructions may perform the operating method according to the present invention.

On the other hand, the operating method of the eCall system according to the present invention described above may be implemented as a computer readable code on a computer readable recording medium. The computer-readable recording medium includes any type of recording medium in which data that can be read by a computer system is stored. For example, there may be a read only memory (ROM), a random access memory (RAM), a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, and the like. In addition, the computer-readable recording medium may be stored and executed as code readable in a distributed manner by being distributed in a computer system connected through a computer communication network.

Table 1 below shows the data structure of a minimum set of data (MSD).

turn designation One MSD ID 2 Message Identifier 3 Automatic activation 4 VIN 5 fuel type 6 hour 7 vehicle location 8 vehicle direction 9 nearest vehicle location 10 nearest vehicle location 11 number of passengers 12 Optional data

The size of the MSD message is 140 bytes, and optional data 12 is not normally used. In the present invention, by storing information on the degree of injury (%) of the occupant and additional information in optional data, the severity and urgency of the accident are reflected to be able to cope with the accident.

2 is a flowchart illustrating a method of operating an eCall system according to an embodiment of the present invention.

An object of the present invention is to provide information for judging the level of accident severity and the degree of injury of occupants when an accident occurs to give priority to emergency rescue dispatch and to determine the size of the rescue team. In optional data, which is number 12 among the MSD message configurations of the eCall system, an item of the degree of injury (%) of the passenger and additional information related thereto can be implemented. The collision angle of 360 degrees around the vehicle can be calculated using two receiving sensors mounted on the vehicle, and no additional measuring sensors are required.

In order to calculate the additional information related to the occupant's injury degree (%) item, the collision angle and collision speed are measured during a vehicle collision, and the amount of impact applied to the vehicle is calculated. Collision information is measured through two antennas installed in the vehicle using beamforming technology. Two antennas mounted on a vehicle become a receiver, and a transmitter sensor mounted on another vehicle that collides with becomes a transmitter.

The method of operating an eCall system according to the present invention comprises the steps of: a first vehicle receiving and storing distance information and angle information between a second vehicle; receiving vehicle information of a second vehicle within a predetermined distance from the first vehicle; deploying an airbag upon collision with a second vehicle; selecting a distance and an angle from a second vehicle before the collision at regular time intervals; calculating a collision location, a collision angle, a collision site, and a collision speed using the selected distance and angle; inquiring body information of a second vehicle by using the collision location information; calculating a damage index from the impact amount calculated from the collision angle, the collision site, and the collision speed and the vehicle body information of the second vehicle; and determining the scale and priority of emergency dispatch according to the calculated damage index.

3 is an exemplary diagram for explaining a method of operating an eCall system according to an embodiment of the present invention.

The first vehicle (the present vehicle) calculates the distance and angle with the second vehicle periodically (eg, in units of 1 second or in units of 0.1 seconds) as it approaches the second vehicle (the collision vehicle). A collision angle and a collision speed when a collision occurs are calculated using the distance and angle between the first vehicle and the second vehicle calculated over time.

For example, the collision speed, the collision site, and the collision angle may be calculated using the distance and angle between vehicles 10 seconds before the collision and the distance and angle between the vehicles 1 second before the collision occurs. The amount of impact may be calculated from the calculated impact velocity, impact area, and impact angle.

3 , the first vehicle includes a reception sensor A and a reception sensor B, and the second vehicle includes a transmission sensor A. If the first vehicle and the second vehicle are traveling in the same lane and the center lines coincide, the signal transmitted from the transmitting sensor A will arrive at the receiving sensor A and the receiving sensor B at the same time.

Since the first vehicle and the second vehicle are time-synchronized from the GPS signal, the distance between the first vehicle and the second vehicle may be calculated from the signal transmitted from the transmission sensor A.

In addition, since the distance between the receiving sensor A and the receiving sensor B installed in the first vehicle is already known, as shown in FIG. 3 , when the center lines of the first vehicle and the second vehicle are out of alignment, the signal transmitted from the transmitting sensor A is the receiving sensor A There will be a time difference between and reaching the reception sensor B, and the angle between the first vehicle and the second vehicle may be calculated.

In general, angle information may be stored only when the second vehicle approaches within a predetermined distance from the first vehicle. For example, when the second vehicle is within 5 m from the first vehicle, angle information between the first vehicle and the second vehicle may be stored. Although the probability that actual vehicles will collide is very low, angle information can be selectively stored in terms of efficiently allocating computing resources, considering that the present invention is an invention for quick response in the event of an accident.

When the first vehicle collides with the second vehicle, the collision location information is transmitted to the PSAP server, the PSAP server transmits the collision location information and the collision time information to the emergency rescue center server, and the emergency rescue center server transmits the collision time It is possible to obtain information on the second vehicle identified as being present at the collision location. The first vehicle may directly obtain the corresponding information from the second vehicle using WAVE communication, but due to a collision, there is a risk that the WAVE communication device may break down, so the emergency rescue center server receives the GPS information from the second vehicle from the GPS information of the second vehicle. vehicle body information can be obtained.

4 shows a configuration diagram of an eCall system according to the present invention.

The eCall system according to the present invention comprises: a first vehicle; a second vehicle; PSAP server; emergency rescue center server;

The first vehicle 430 includes a first reception sensor 433 ; a second reception sensor 436; control unit 439; front airbag sensor 442; rear airbag sensor 445; A voice receiving unit 448; includes, and the first receiving sensor 433 and the second receiving sensor 436 receive a signal from the transmitting sensor 415 of the second vehicle 410 and transmit it to the control unit 439, , the controller 439 calculates the distance and angle between the first vehicle and the second vehicle by using the received signal. The control unit 439 receives the airbag operation signal from the front airbag sensor 442 and the rear airbag sensor 445, and based on the calculated distance and angle information, a collision location, a collision angle, and a collision site between the first vehicle and the second vehicle and calculates the collision speed and transmits it to the PSAP server.

The PSAP server 450 determines the degree of injury by using the information received from the control unit 439 , analyzes the accident level, and transmits the accident level to the emergency rescue center server 475 .

The transmission sensor 415 of the second vehicle 410 is mounted in the center of the vehicle to minimize errors in the calculation of the collision angle and distance with the first vehicle 430 . The collision angle and distance calculation are calculated on the assumption that the transmission sensor 415 is mounted in the center of the vehicle. The transmitting sensor periodically transmits a signal, and the transmitted signal may be received by an unspecified number of vehicles around the vehicle in motion. The transmission range of the signal guarantees the transmission quality in a range within a radius of 100 m based on the second vehicle 410 . The transmitted signal is transmitted based on the time domain. For example, the signal transmission standard may be transmitted once per second based on the GPS reception time.

The signal to be transmitted includes BIN number information, and a collision angle and collision speed may be calculated by acquiring a signal including the same BIN number received from two receiving sensors of the receiving vehicle (the first vehicle 430 ).

The first reception sensor 433 and the second reception sensor 436 receive a signal transmitted from a vehicle within 100 m around the moving vehicle. Since the signal transmitted from the surrounding vehicle includes the BIN number for each vehicle, it is possible to receive the signal transmitted from an unspecified number of vehicles received by each of the two receiving sensors, and to specify the same signal using the BIN number . However, the receiving sensor may select only signals within a certain distance for efficiency. For example, a signal of a vehicle more than 10 m away is ignored, only a signal of a vehicle existing within 10 m is stored for each reception time, and can be used as data for calculating collision information when a collision occurs.

The voice receiver 448 may be configured as a dual microphone. The voice receiver 448 operates as a voice receiver in a general eCall operation, but may be used to collect information on the number of occupants of the vehicle and the gender and age of the occupants at the initial stage of vehicle operation. A vehicle door open signal and a vehicle speed signal can be detected. When the vehicle speed increases after the vehicle door is closed, when it exceeds 5 km/h, information on the number of occupants in the vehicle is collected. When using a dual microphone, the voice reception range is configured in the order of the driver's seat, the front passenger's seat, the left rear seat, and the right rear seat. A general beamforming technology may receive a passenger's voice, designate a surrounding range as a voice reception range, and determine that a voice signal received outside the voice reception range is noise. However, in the present invention, it is possible to determine the gender and the number of passengers by designating a voice reception range for each occupant area and comparing the voice information of the occupants by region.

Based on the frequency band, 100 Hz to 150 Hz is analyzed as male, 200 Hz to 250 Hz is analyzed as female, and children are applied to a band of 350 Hz or higher. The sequentially collected information on the number of passengers is included in the information on the number of passengers in the MSD, and it is possible to predict the degree of damage for each passenger by calculating the impact area of the collision and the seat impact of the passengers.

When the control unit 439 becomes a component according to the eCall standard, it performs functions and operations satisfying the eCall legal requirements, and includes an additional function according to the present invention, and the additional function will be described later.

The front airbag sensor 442 and the rear airbag sensor 445 are used to activate the eCall operation in the event of an accident. When calculating the collision direction and angle, it is used as data to calculate the collision angle according to the collision location.

When a collision occurs between the first vehicle (the vehicle in motion) and the second vehicle (the collision vehicle), the collision angle between the first vehicle and the second vehicle is used as a basis for determining the accident severity level.

A distance and an angle between the vehicles are calculated by receiving a signal transmitted from the transmission sensor 415 of the surrounding vehicle (the second vehicle 410) through two reception sensors mounted on the vehicle. As shown in FIG. 3 , two receiving sensors of the vehicle are mounted on the left and right sides of the front of the vehicle, and the left sensor is referred to as a first receiving sensor and the right sensor is referred to as a second receiving sensor. Let d be the distance between the first receiving sensor and the second receiving sensor. Assuming that the arrival times of the signals transmitted from the transmission sensor 415 of the second vehicle 410 are S1 and S2, the collision angle between the vehicles may be calculated.

Let the distance from the transmitting sensor 415 to the first receiving sensor 433 be L1, the distance from the transmitting sensor 415 to the second receiving sensor 436 being L2, and the transmission speed of the signal being v, L1, L2 follows Equations 1 and 2 below.

To calculate the angle between vehicles, let D=L1-L2. Referring to FIG. 3 , L1>L2. If L2-L1=D=d, the first vehicle collides horizontally on the left side of the second vehicle, and if L2-L1=D=-d, the first vehicle collides horizontally on the right side of the second vehicle . That is, if L2-L1>0, the first vehicle is on the left side of the second vehicle in the horizontal direction, and if L2-L1<0, the first vehicle is on the right side of the second vehicle on the horizontal direction. Also, if L2-L1=D=0, it is a case of vertical collision. Referring to the above description, the collision angle ( ) can be approximated by the following equation.

The collision speed Vs can be calculated by Equation 6 below. For example, if L1 and L2 10 seconds before the collision are L1a and L2a, respectively, and L1 and L2 1 second before the collision are L1b and L2b, the collision speed from the point of view of L1 is expressed as Equation 4 below, From the standpoint, the collision speed can be expressed as Equation 5 below. In the present invention, when averaging and adjusting the denominator, the collision speed can be expressed as in Equation 6 below.

A level indicating the degree of collision injury included in the Minimum Set of Data (MSD) is called a collision injury score. The basic injury degree can be judged by the calculated crash injury score, and the crash injury score according to the driver's seat, front passenger's seat, left rear seat, and right rear seat is calculated separately. The separately calculated crash injury score serves as a criterion for judging the degree of damage to each seat. The collision injury score is calculated by considering the collision speed, the collision site, the amount of impact per vehicle weight, and the degree of injury per seat.

The collision injury score (X) for each seat is as shown in Equation 7 below.

X: Crash Injury Score

A: Collision speed score

B: Crash site score

C: Impact by vehicle weight

D: Impact score by seat

E: Chain Collision Points

At this time, for convenience of calculation, A, B, C, D, and E may have a minimum value and a maximum value. For example, the minimum and maximum values of A, B, C, D, and E may be as shown in the following table.

division minimum maximum A 2 10 B 6 10 C 4 10 D 4 10 E 2 10

For example, according to Table 2, the maximum value of X is 373.3 (=10+10+10+(10*10*10)/3+10), and the minimum value of X is 24.6 (=2+6+4+(=2+6+4+() It becomes 2*4*4)/3+2).

In the case of an actual accident, a formula for calculating the collision score was created considering that the degree of damage largely depends on the collision speed, the collision site, and the amount of impact.

Specifically, the following table shows the impact amount by vehicle weight.

Classification by vehicle weight Impact by vehicle weight small car 10 mid-size car 8 midsize car 6 large passenger car 4 Trucks under 2 tons 6 trucks over 2 tons 4 special car 4

The collision velocity scores are shown in the table below.

collision speed Collision speed score less than 30 km/h 2 30km/h or more and less than 60km/h 4 60km/h or more and less than 90km/h 5 More than 90km/h and less than 120km/h 6 120km/h or more 10

If an additional report is received within 20m of the GPS point of the accident after the MSD report is received in the PSAP server 450, it is determined that the secondary accident is caused by a chain collision. Since there is a high probability that additional collisions will occur after the first collision in a chain collision, the severity of the accident may be more serious than the primary MSD information, so additional injury points are given. Additional additional points are given differently according to the number of vehicles reported in a chain collision. The points awarded are as follows.

number of car crashes Chain Collision Bonus Points 3 or less 2 4 or more and 5 or less 4 6 or more and 7 or less 6 8 or more 9 or less 8 over 10 10

5 is an exemplary view for explaining an impact score for each seat according to a collision site according to a partial embodiment of the present invention.

The impact score for each seat according to the collision site of FIG. 5 is as follows.

crash site driving ship passenger seat left rear seat right rear seat A 10 8 4 4 B 8 10 4 4 C 4 4 10 8 D 4 4 8 10 E 10 6 10 6 F 6 10 6 10 G 8 8 4 4 H 4 4 8 8

When the crash injury score is calculated according to the above-described method, the size and severity of the accident may be determined. The calculated crash injury score is transmitted to the emergency rescue center to predict emergency rescue priority and dispatch size.

6 is an exemplary diagram for explaining a method of operating an eCall system according to an embodiment of the present invention.

The eCall system according to the present invention includes a first vehicle; PSAP server; Emergency Rescue Setter Server; includes.

The method of operating an eCall system according to the present invention comprises the steps of: a first vehicle receiving a signal of a second vehicle; storing distance information when the receiving distance is 10 m or less; calculating a collision angle from the stored distance information when the airbag is deployed; calculating a collision angle assuming a front collision when the front airbag is deployed, and calculating a collision angle assuming a rear collision when the rear airbag is deployed; calculating a collision velocity; calculating a collision injury point by calculating a collision site and a collision impact amount; receiving, by the PSAP server, the MSD from the first vehicle; determining whether there is a chain collision and calculating additional points for a chain collision; calculating, by the emergency rescue center server, additional points for collision injuries; and determining the severity of the accident.

In the above, the configuration of the present invention has been described in detail with reference to the accompanying drawings, but this is only an example, and those skilled in the art to which the present invention pertains can make various modifications and changes within the scope of the technical spirit of the present invention. Of course, this is possible. Therefore, the protection scope of the present invention should not be limited to the above-described embodiments and should be defined by the description of the following claims.

100: computer system
110: processor
120: memory
123: ROM
126: RAM
130: data communication bus
140: storage
150: user input device
160: user output device
170: network interface
180: network
410: second vehicle
415: transmit sensor
430: first vehicle
433: first receiving sensor
436: second receiving sensor
439: control unit
443: front airbag sensor
445: rear airbag sensor
448: voice receiver
450: PSAP server
453: judgment unit
456: analysis unit
470: Emergency Rescue Center
475: Emergency Rescue Center Server

Claims (12)

the first vehicle,
(1) receiving, by the first reception sensor and the second reception sensor, information on arrival time of a signal from a transmission sensor of a second vehicle within a predetermined distance from the first vehicle;
(2) calculating and storing distance information between the first vehicle and the second vehicle using the arrival time information;
(3) deploying the airbag when colliding with the second vehicle;
(4) selecting the distance information stored in step (2) before the collision in step (3) at regular time intervals;
(5) calculating a collision angle, a collision site, and a collision speed using the distance selected in step (4);
(6) inquiring from the emergency rescue center server, the vehicle body information of the second vehicle by using the collision location information; and
(7) calculating a collision injury score using the impact angle information, the collision site, the collision speed, and the amount of impact calculated from the vehicle body information, and transmitting the calculated collision injury score to the PSAP server; .
According to claim 1,
The predetermined distance in step (1) is characterized in that 10 m
How the eCall system works.
According to claim 1,
The collision angle is
A value obtained by multiplying the difference between the distance between the first receiving sensor and the transmitting sensor and the distance between the second receiving sensor and the transmitting sensor by the distance between the first receiving sensor and the second receiving sensor multiplied by 90 that
How the eCall system works.
According to claim 1,
The collision speed is
A first speed obtained by using the distance between the first receiving sensor and the transmitting sensor of a predetermined time interval;
It is an average value of the second speed obtained by using the distance between the second receiving sensor and the transmitting sensor of a predetermined time interval
How the eCall system works.
According to claim 1,
The collision area is
It is calculated by the initial positions of the first vehicle and the second vehicle, the collision speed, and the collision angle,
Depending on the impact site,
Calculating crash injury scores for the driver's seat, front passenger's seat, left rear seat and right rear seat
How the eCall system works.
According to claim 1,
The method of operating an eCall system further comprising the step of determining, by the PSAP server, the scale and priority of emergency dispatch according to the crash injury score transmitted from the first vehicle.
An eCall system comprising a first vehicle, a second vehicle, a PSAP server, and an emergency rescue center server, the eCall system comprising:
The second vehicle includes a transmission sensor,
The first vehicle includes a first reception sensor and a second reception sensor, receives a signal from the transmission sensor, and calculates a distance from the second vehicle, a collision angle, a collision speed, a collision site, and an amount of collision, Transmitting the calculated collision injury score based on the calculated amount of impact to the PSAP server,
The PSAP server transmits the accident severity level calculated based on the received crash injury score to the emergency rescue center server,
The emergency rescue center server calculates the emergency rescue priority and the emergency rescue dispatch scale according to the received accident severity.
eCall system.
8. The method of claim 7,
The first vehicle further comprises a voice receiver,
The voice receiver is equipped with a dual microphone, classifies men, women, and children from human voices using the dual microphones, and identifies who is located in the driver's seat, the passenger seat, the left rear seat and the right rear seat according to the location where the voice is generated. thing
eCall system.
8. The method of claim 7,
The collision angle is
A value obtained by multiplying the difference between the distance between the first receiving sensor and the transmitting sensor and the distance between the second receiving sensor and the transmitting sensor by the distance between the first receiving sensor and the second receiving sensor multiplied by 90 thing
eCall system.
8. The method of claim 7,
The collision speed is
A first speed obtained by using the distance between the first receiving sensor and the transmitting sensor of a predetermined time interval;
It is an average value of the second speed obtained by using the distance between the second receiving sensor and the transmitting sensor of a predetermined time interval
eCall system.
8. The method of claim 7,
The collision area is
It is calculated by the initial positions of the first vehicle and the second vehicle, the collision speed, and the collision angle,
Depending on the impact site,
Calculating crash injury scores for the driver's seat, front passenger's seat, left rear seat and right rear seat
eCall system.
8. The method of claim 7,
The PSAP server,
The eCall system that determines the scale and priority of emergency dispatch according to the crash injury score transmitted from the first vehicle, calculates the severity of the accident according to the determination result, and transmits it to the emergency rescue center server

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