KR20170059724A - Emergency vehicle signal priority system and method thereof - Google Patents

Emergency vehicle signal priority system and method thereof Download PDF

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Publication number
KR20170059724A
KR20170059724A KR1020150164026A KR20150164026A KR20170059724A KR 20170059724 A KR20170059724 A KR 20170059724A KR 1020150164026 A KR1020150164026 A KR 1020150164026A KR 20150164026 A KR20150164026 A KR 20150164026A KR 20170059724 A KR20170059724 A KR 20170059724A
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South Korea
Prior art keywords
emergency vehicle
request data
traffic
vehicle
password
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KR1020150164026A
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Korean (ko)
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KR101749244B1 (en
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박용식
안창영
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(주)크리웨이브
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously

Abstract

The present invention relates to an emergency vehicle priority signal control system which provides a priority signal only to authorized vehicles and authorized persons by performing a verification process using a password and management information in a PPC board, thereby effectively preventing use of the vehicle terminal due to theft and duplication. The present invention can minimize damage to a general vehicle. In addition, the PPC board for judging whether the priority signal is provided to an emergency vehicle can be interlocked with an existing roadside base station and, at the same time, can be mounted inside a traffic signal controller previously installed in the form of an option board, thereby making installation, replacement and inspection simple, as well as preserving city appearances. In addition, the manufacturing cost can be reduced. The emergency vehicle priority signal control system of the present invention comprises: an in-vehicle terminal installed in the emergency vehicle, for receiving and storing a password from a user when the power is turned on, and for sending out access request data including current location information via GPS and the password; a roadside base station installed on a road and receiving the access request data from an adjacent vehicle terminal; a traffic signal controller for managing and controlling a present system of assigned traffic lights; and a PPC board. The PPC board receives the access request data from the roadside base station, verifies whether the access request data is normal data by comparing the password of the access request data with the previously stored password, and uses the location information of the access request data periodically received when the access request data is normal data in order to request the priority signal together with traveling direction information of the emergency vehicle to the traffic signal controller when the location of the emergency vehicle enters a setting area (S) set for each predetermined moving direction.

Description

[0001] Emergency vehicle signal priority system and method [0002]

The present invention relates to an emergency vehicle priority signal control system and, more particularly, to an emergency vehicle priority signal control system and method for controlling an emergent system of a traffic light such that a priority signal is given in accordance with the traveling direction of an emergency vehicle when an emergency vehicle passes .

Traffic congestion frequently occurs as the number of vehicles increases due to the development of the automobile industry. Such traffic congestion not only causes social loss due to environmental pollution, noise, consumption of automobile fuel consumption and congestion, but also causes an emergency vehicle Which is a major cause of the decrease in the speed of the. Emergency vehicles are defined as special vehicles that are used for emergency purposes, such as fire trucks, escort vehicles, ambulances, police cars, and crime-prone vehicles.

The first condition for such an emergency vehicle to perform its mission perfectly is the rapid movement of the emergency vehicle to the scene of the accident. In other words, how quickly the emergency vehicle moves to the place of the accident is the most important factor in fulfilling the mission. For example, in the case of a fire truck aiming to arrive at an accident site within 5 minutes after receipt of the report, 40% of the reasons for not arriving on time are due to traffic congestion.

Accordingly, various researches have been conducted on an emergency vehicle priority signal control system that gives a priority signal to an emergency vehicle, thereby minimizing a stoppage of the emergency vehicle, thereby increasing the speed of the emergency vehicle.

1 is a block diagram showing an emergency vehicle priority signal control system disclosed in Korean Patent No. 10-144213 (entitled "Emergency Vehicle Priority Signal Control System and Control Method") Patented by the present applicant.

The emergency vehicle priority signal control system 100 includes an onboard transceiver 110, a priority signal generator 120, a traffic signal controller 130, and a traffic light 140.

The onboard transceiver 110 is installed in the emergency vehicle and generates a broadcast packet including the vehicle identification information and the position information when the beacon signal is detected from the signal generating apparatus 200 and transmits the generated broadcast packet to the priority signal generating apparatus 200 do.

First, the signal generator 200 is installed in each signal lamp 350 and periodically transmits a beacon signal. When receiving a broadcast packet from the onboard transceiver 110, the position of the emergency vehicle is moved And transmits a priority control signal including the moving direction information of the emergency vehicle to the traffic signal controller 300 when entering the predetermined area by direction.

When the traffic signal controller 300 receives the priority control signal from the signal generator 200, the traffic signal controller 300 controls the traffic signal so that the traffic signal in the moving direction becomes a forward signal.

In the conventional art 100 configured as described above, since the onboard transceiver 110 and the priority signal generator 110 are implemented in a 1: N communication scheme, broadcast packets transmitted from any onboard transceiver 100 are transmitted to adjacent It is possible to transmit a priority signal to the emergency vehicle even if the vehicle is passing through the overlapping communication area of the plurality of priority signal generating apparatuses 110. [

In general, on-board equipment (OBE) such as the onboard transceiver 110 of an emergency vehicle is used only for an authorized vehicle and an authorized person because it is used for a special purpose of emergency service, Procedures to prevent the use of non-autonomous persons should be essential.

However, the conventional technique 100 does not perform a verification process to prevent the onboard transceiver 110 from being used by a vehicle or a person other than an authorized vehicle, A problem occurs that unnecessary damage of a general vehicle occurs because a signal is given to an unauthorized vehicle when the vehicle falls.

Also, since the signal generating apparatus 120 receives not only the broadcast packet of the vehicle transceiver 110 of the emergency vehicle but also the wireless packet of the general vehicle, the prior art 100 determines whether the received packet is transmitted from the emergency vehicle In order to judge whether the packet is a broadcast packet or not, it is necessary to 1) compare the packet format to determine whether the received packet is a unicast packet or a broadcast packet, 2) analyze the contents of the packet when the packet format is a broadcast packet, If it is determined that the position information of the emergency vehicle is included in the packet, it is determined that the packet is a packet for the emergency vehicle, so that unnecessary arithmetic consumption occurs And the efficiency becomes poor.

In addition, the prior art 100 is manufactured separately in order to process various operations such as beacon signal transmission, packet analysis and determination module, position detection of an emergency vehicle, entry / exit of an emergency vehicle, etc., It is required not only to reduce the aesthetics of the road but also to increase the manufacturing cost and troublesome installation process.

Further, the prior art 100 does not provide a priority signal only to signals corresponding to the precise moving directions (straight ahead, leftward rotation) of the emergency vehicle, but rather provides a priority signal for all directions in which the road on which the emergency vehicle is traveling can move This not only reduces efficiency, but also increases the stagnation of vehicles other than emergency vehicles.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a vehicle terminal which receives a password from a user when power is turned on, transmits a password and predetermined management information to connection request data, Receives the connection request data of the vehicle terminal through the roadside base station, it carries out the verification process using the password and the management information, thereby providing the priority signal only to the authorized vehicle and the authorized vehicle so that the use of the vehicle terminal by theft, And an emergency vehicle priority signal control system and method that can minimize unnecessary damage of a general vehicle.

In addition, another object of the present invention is to collect connection request data from a vehicle terminal through a roadside base station in cooperation with a previously installed roadside base station, and to install the PPC board in a traffic signal controller installed as an option board, And to provide an emergency vehicle priority signal control system and method which can simplify the inspection and not detract from the beauty of the city and reduce the manufacturing cost.

Further, another object of the present invention is to provide an emergency route search method and a route search method by detecting an optimal travel route according to a present position and a report place of an emergency car, There is provided an emergency vehicle priority signal control system and method that can provide a priority signal to all directions in which a road can move, thereby dramatically solving the problem of inefficiency.

Further, another object of the present invention is to provide a method and apparatus for detecting an accident occurrence measure, which is an accident measure agencies adjacent to an emergency vehicle through the current position of the emergency vehicle and the location of each accident response agency when the emergency vehicle is in the return mode, And detects an optimal movement path for the detected optimum approaching vehicle. Then, the traffic lights belonging to the optimum travel path detected are detected as priority signals So that the urgency of the emergency vehicle can be maximized.

According to an aspect of the present invention, there is provided an urgent-vehicle priority signal control system for providing a priority signal to an emergency vehicle, the emergency-vehicle priority signal control system being provided in the emergency vehicle, And transmits the connection request data including the password to the outside; A roadside base station installed on a road and receiving connection request data from an adjacent vehicle terminal; A traffic signal controller for managing and controlling the display system of the assigned traffic lights; Receiving the connection request data from the roadside base station, comparing the password of the connection request data with the stored password to verify whether the connection request data is normal data, When the position of the emergency vehicle enters the setting area S for each predetermined moving direction by using the position information of the connection request data periodically received, the PPC for requesting the priority signal together with the moving direction information of the emergency vehicle to the traffic signal controller Board.

Also, in the present invention, the PPC board stores management information including identification code information indicating a type of management agency, and password information matching with each management information, and the in-vehicle terminal stores predetermined management information The PPC board searches the stored management information and the password information matched with the management information to verify the management information and the password of the connection request data, .

Further, in the present invention, it is preferable that the in-vehicle terminal further includes a data reset module for deleting the stored password when the power is turned on.

Also, in the present invention, the PPC board is preferably installed inside the traffic signal controller in the form of an optional board.

Also, in the present invention, it is preferable that the in-vehicle terminal is provided with a password using one of a method of directly inputting from a user, a method of inputting through a storage medium, and a method of receiving input through connection with a smartphone.

Further, in the present invention, the emergency vehicle priority signal control system further includes a control center server, and the PPC board transmits the verified connection request data to the outside via the traffic signal controller, And detects an optimal movement route from the current position of the emergency vehicle to the declared place using the preset optimal route algorithm when the emergency vehicle is in the dispatch mode, The traffic lights included in the optimum travel route are extracted through the location information of the traffic lights, and when the emergency traffic vehicle enters one of the extracted traffic lights, a traffic signal controller for controlling the corresponding traffic lights displays a signal corresponding to the traveling direction, And the traffic signal controller transmits the control data to the control center server Emitter is desirable to control the traffic lights according to the received first transmission signal control data.

In the present invention, the emergency vehicle priority signal system may further include a traffic center for generating traffic information including road congestion ratio information, and the traffic control center may be a management center for performing follow-up to an accident- Or emergency vehicles, and information on the road congestion rate transmitted from the traffic center. When the emergency mode is the return mode in which the emergency vehicle moves from the accident place to the accident response facility, It is possible to detect the adjacent accident response agencies adjacent to the current location of the emergency vehicle using the location of the accident response agency and to calculate the distance difference between each adjacent accident response agency from the current position of the emergency vehicle and then calculate the distance difference and the road congestion rate (T), which is the time required for an emergency vehicle to arrive at each adjacent accident response agency from its current location It is preferable to determine an optimal proximity accident management agency having a small estimated time t that is calculated and calculated as the final destination and to detect an optimal travel route from the current position of the emergency vehicle to the final destination using the optimal route algorithm Do.

In the present invention, the traffic signal controller transmits superimposed data indicating that the PPC board is overlapped when the priority signal request from the PPC board and the priority signal data from the control center server are simultaneously received, When receiving the overlay data from the traffic signal controller, analyze the management information of the access request data using the predetermined table assigned a priority according to the management agency to determine the priority.

According to the present invention having the above-mentioned problems and solutions, it is possible to provide a priority signal only to the authorized vehicle and authorized persons by performing the verification process using the password and management information in the PPC board, thereby efficiently using the vehicle terminal due to theft, And it is possible to minimize the unnecessary damage of the general vehicle.

According to the present invention, a PPC board for determining whether a priority signal is provided to an emergency vehicle can be interlocked with a roadside base station installed in the vehicle, and is mounted inside an installed traffic signal controller in the form of an optional board, And at the same time, the beauty of the city is not hurt, and the manufacturing cost can be reduced.

In addition, according to the present invention, it is possible to detect an optimal movement route according to the current position and the declared place of the emergency car to detect the traffic lights belonging to the optimal movement route, and to provide the priority signal when passing the emergency car to the detected traffic lights, It is possible to remarkably solve the problem of inefficiency by providing a priority signal for all directions in which the road on which the vehicle is traveling can be moved.

1 is a block diagram showing an emergency vehicle priority signal control system disclosed in Korean Patent No. 10-144213 (entitled " Emergency Vehicle Priority Signal Control System and Control Method ", filed by the present applicant).
2 is a block diagram illustrating an emergency vehicle priority signal control system according to an embodiment of the present invention.
Fig. 3 is an exemplary view of Fig. 2. Fig.
4 is a block diagram showing the vehicle terminal of Fig.
5 is a block diagram illustrating the PPC board of FIG.
Fig. 6 is a diagram for explaining Fig. 2. Fig.
7 is a block diagram showing an emergency vehicle priority signal system according to a second embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a diagram for explaining an emergency vehicle priority signal control system, which is an embodiment of the present invention, and FIG. 3 is an exemplary diagram of FIG.

The emergency vehicle priority signal control system (1) of the present invention is a system for controlling an emergent system of a traffic light so as to give a priority signal to an emergency car (C) performing an emergency mission so as to move the emergency vehicle as fast as possible to be.

2 and 3, the emergency vehicle priority signal control system 1 includes a vehicle terminal (EV-OBE) 3 installed in an emergency vehicle for transmitting connection request data to the adjacent roadside base station 5, A roadside base station (RSE) 5 installed at a distance from the road and receiving connection request data from the connected vehicle terminal 3 and inputting the connection request data to the PPC board 9, A PPC board 9 for requesting a priority signal to the traffic signal controller 7 when the urgent vehicle that has been verified enters the setting area S for each moving direction after performing verification of the connection request data transmitted from the PID controller 5, And a traffic signal controller 7 for managing and controlling the pre-assigned system of the traffic lights and providing a priority signal to the emergency vehicle at the request of the PPC board 9. [

At this time, the roadside base station 5 and the traffic signal controller 7 can be connected to each other via Ethernet to perform data communication, and the traffic signal controller 7 and the PPC board 9 can transmit data via the VME bus (Versa Module Eurocard Bus) Lt; / RTI >

4 is a block diagram showing the vehicle terminal of Fig.

An EV-OBE (Emergency Vehicle-On-Board Equipment) 3 is installed in an emergency vehicle to generate probe information, and transmits the generated probe information to a dumb terminal (Dummy terminal).

4, the vehicle terminal (EV-OBE) includes a memory 32, a communication interface module 33, an input module 34, a GPS module 35, a connection request data generation module 36, A reset module 37 and a control module 31.

The control module 31 manages and controls the control objects 32, 33, 34, 35, 36,

In addition, the control module 31 drives the data reset module 37 during the initial power-on operation so that the password information stored in the memory 32 is deleted.

The control module 31 also stores the inputted password information in the memory 32 when the password information is input by the input module 34. [

The control module 31 periodically inputs the management information stored in the memory 32, the current position information detected by the GPS module 35, and the preset management information to the connection request data generation module 36, The request data generation module 36 generates connection request data.

The control module 31 controls the communication interface module 33 to be transmitted to the roadside base station 5 to which the connection request data generated by the connection request data generation module 36 is connected.

In the memory 32, password information input through the input module 34 is stored.

The memory 32 also stores preset management information. At this time, the management information is composed of identification code information indicating the type of the management agency, and car number or bus route number information.

In the present invention, the identification code is set in accordance with the type, position, etc. of the management agency (fire station, police station, hospital, etc.), and a matching password is set in each identification code. And is stored in the PPC board 9 as well as the vehicle terminal 3. [

The input module 34 receives the password from the user and stores the inputted password information in the memory 32. [ At this time, the password is used as a medium to determine whether the user is authorized.

The password input by the input module 34 is deleted from the memory 32 by the data resetting module 37 when the power is turned on. That is, the vehicle terminal of the present invention is configured to receive the password from the user every time the power is turned off and then turned on, thereby effectively preventing the vehicle terminal from being used by persons other than the authorized person by theft, do.

Also, the input module 34 can receive the password in various known ways such as receiving the password directly from the user, receiving the input through the storage medium such as USB, receiving the input through the connection with the smartphone, or the like.

The connection request data generation module 36 generates connection request data including the preset management information, the password information input through the input module 34, and the priority signal information including the current position detected by the GPS module 35 Periodically.

The connection request data generated by the connection request data generation module 36 is transmitted to the adjacent roadside base station 5 via the communication interface module 33.

The data reset module 37 is driven when the power is turned on and deletes the existing password information stored in the memory 32 from the memory 32. [ That is, the vehicle terminal 3 of the present invention is configured to receive the password from the user every time the power is turned on by the data reset module 37, thereby effectively preventing the priority signal providing service in use other than the authorized user by theft, .

The roadside equipment (RSE) 5 is installed on the road so as to receive the connection request data from the adjacent vehicle terminal 3, and transmits the received connection request data to the PPC board 9. At this time, it is preferable that the roadside base station 5 is installed in the signal lightpost P.

In addition, the roadside base station 5 can communicate with the vehicle terminal 3 at N: 1 by using a plurality of roadside base stations using the IEEE 802.11 based communication communication. Thus, even at the intersections continuously adjacent to the city center, The priority signal control for the vehicle can be performed.

5 is a block diagram illustrating the PPC board of FIG.

The PPC board (Poser Personal Computer board) 9 is mounted in the form of an option board inside the traffic signal controller 7, and the connection request data transmitted from the roadside base station 5 is transmitted to an emergency vehicle (Hereinafter referred to as normal data), and performs a function of requesting the traffic signal controller 7 for a priority signal after the verification.

5, the PPC board 9 includes a memory 92 for storing data, a communication interface module 93 for supporting data communication between the roadside base station 5 and the traffic signal controller 7, A data verification module 94 for verifying whether the received connection request data is normal data, a position tracking module 95 for tracking the position of the emergency vehicle, an entry / exit module 95 for determining whether the emergency vehicle has entered the setting area S, An advancement judging module 96 and a control module 91 for managing and controlling these connection objects 92, 93, 94, 95 and 96. At this time, the control module 91 requests the traffic signal controller 7 for the priority signal if the entry / exit determination module 96 determines that the emergency vehicle enters the setting area S, and the entrance / exit determination module 96 ), The traffic signal controller 7 requests the priority signal cancellation.

In the memory 92, the management information, the password information, and the position information of the setting area S for each moving direction are stored in advance. At this time, the setting area S for each moving direction is defined as an area for applying the priority signal according to the moving direction, and the management information and the password information are configured by the administrator or transmitted from an external center server (not shown) .

Connection request data received from the roadside base station 5 through the communication interface module 93 is stored in the memory 92.

The data verification module 94 verifies whether the connection request data transmitted from the vehicle terminal 3 through the communication interface module 93 is normal data. In the present invention, for convenience of explanation, the vehicle terminal 3 is limited to being installed in the emergency vehicle. However, the vehicle terminal 3 may receive the wireless packet to other ordinary vehicles other than the emergency vehicle Therefore, the kinds of wireless packets collected in the roadside base station 5 vary. Accordingly, the PPC board 9 extracts connection request data packets among the wireless packets collected in the roadside base station 5 through the data verification module 94, and 2) whether the extracted connection request data is normal data Verification ensures that priority signals are only provided to authorized vehicles and authorized persons.

In addition, the data verification module 94 analyzes the content of the data bit of the received wireless packet to determine whether it is a connection request data packet.

If it is determined that the data is transmitted from the vehicle terminal of the emergency vehicle, the data verification module 94 searches management information and password information stored in the memory 92 to verify whether the management information and the password information are normal data. At this time, when the data verification module 94 verifies that the connection request data is normal data, the position tracking module 95 is driven under the control of the control module 91.

The location tracking module 95 tracks the location of the corresponding vehicle terminal through the current location information of the connection request data for the same vehicle terminal periodically input.

The entry / exit determination module 96 compares the location information of the setting area S for each moving direction determined previously and the tracking information detected by the location tracking module 95 to determine whether the emergency vehicle has entered the setting area S .

At this time, the control module 91 requests the traffic signal controller 7 for a priority signal if it is determined that the vehicle enters the setting area S by the entry / exit determination module 96. [

In addition, the entry / exit determination module 96 determines whether the emergency vehicle that has entered the setting area S is out of the setting area S.

At this time, the control module 91 requests the traffic signal controller 7 to disassociate the priority signal if the emergency vehicle is determined to be out of the setting area S by the entry / exit determination module 96.

Fig. 6 is a diagram for explaining Fig. 2. Fig.

6, the password information is input to the vehicle terminal 3 of the emergency vehicle from the user (driver) during power-on (S10), and the PPC board 9 receives the management information The password information is received or transmitted from the external center server (S20).

The vehicle terminal 3 periodically generates access request data (including management information, password and priority signal information) and transmits connection request data generated in the connected roadside base station 5 (S30) (5) transfers connection request data received from the vehicle terminal (3) to the PPC board (9) (S40).

The PPC board 9 verifies the connection request data through the data verification module 94 in step S50 and requests the traffic signal controller 7 for a priority signal in step S60 during verification The control unit 10 controls the signal lamp so that the forward signal is expressed in the moving direction according to the signal request (S70), and transmits the response data to the PPC board 9 (S80). In this case, the forward signal is defined as a signal in which the emergency vehicle is capable of straight forward, leftward, and rightward.

The PPC board 9 requests the traffic signal controller 7 to release the priority signal in step S90 and the traffic signal controller 7 controls the traffic signal controller 7 in accordance with the predetermined period After the signal lamp is controlled (S100), the response data is transmitted to the PPC board 9 (S110).

As described above, the emergency vehicle priority signal control system 1, which is an embodiment of the present invention, performs a verification process using the password and management information in the PPC board, thereby providing a priority signal only to the authorized vehicle and authorized persons, It is possible to effectively prevent the use of the vehicle terminal and minimize the unnecessary damage of the general vehicle.

In addition, the present invention can be interlocked with a roadside base station having a PPC board for determining whether a priority signal is provided to an emergency vehicle, and is mounted inside a traffic signal controller installed in an optional board form, At the same time, it does not hurt the beauty of the city and can reduce the manufacturing cost.

7 is a block diagram showing an emergency vehicle priority signal system according to a second embodiment of the present invention.

7, when the emergency vehicle is in the dispatch mode, the control center server 201 detects the optimal travel route from the current position of the emergency vehicle to the report destination, and then, It is possible to maximize the promptness of the emergency vehicle in the dispatch mode by causing the traffic lights to preferentially display the signal corresponding to the travel direction.

In addition, the emergency vehicle priority signal control system 200 detects the proximity accident response agencies, which are accident response agencies adjacent to the current position of the emergency vehicle in the case of an emergency vehicle requiring rapid movement not only in the dispatch mode but also in the return mode as in an ambulance After that, according to the difference in distance from each accident prevention agency and the rate of road congestion, it is decided that the nearest accident prevention agency having the smallest time required for the emergency vehicle to move to the place among the adjacent accident prevention agencies is determined as the final destination, It is possible to maximize the urgency of the emergency vehicle in the dispatch mode by detecting the optimal travel route for the moving route and displaying the signals corresponding to the travel direction to the traffic lights belonging to the detected optimal travel route with priority.

The emergency vehicle priority signal control system 200 includes a control center server 201, a vehicle terminal 203, a roadside base station 205, traffic signal controllers 207-1 to 207-N, A PPC board 209, and a communication network 210.

The vehicle terminal 203, the roadside base station 205 and the traffic signal controllers 207-1 to 207-N are connected to the vehicle terminal 3, the roadside base station 5, The signal controller 7 has the same configuration as that of the signal controller 7, and thus a detailed description thereof will be omitted.

The PPC board 209 verifies the connection request data transmitted from the roadside base station 205 as described above with reference to FIG. 2 and transmits the verified connection request data to the control center server 201 through the traffic signal controller 207 do.

The traffic signal controller 207 manages and controls the display system of the assigned traffic lights according to the predetermined display period, but displays a priority signal on the corresponding traffic lights according to the priority signal control data transmitted from the control center server 201.

The control center server 201 receives traffic information including a road congestion rate from an external traffic center (not shown).

In addition, the control center server 201 detects an optimum movement route from the current position of the emergency vehicle to the declared place using the preset optimal route algorithm when the emergency vehicle is in the dispatch mode. At this time, the method of detecting the optimal movement route from the local location to the declared place is a technique commonly used in the traffic control system and the navigation system, and thus a detailed description thereof will be omitted.

In addition, the control center server 201 extracts traffic lights included in the detected optimal travel route using the location information of previously stored traffic lights, and when the traffic light enters one of the extracted traffic lights, The controller 207 transmits the priority signal control data so that the signal corresponding to the moving direction is preferentially expressed. At this time, the traffic signal controller 207 controls the signal lamp according to the priority signal control data transmitted from the control center server 201, so that the emergency vehicle can quickly move the corresponding area.

Also, when the emergency vehicle is in the recovery mode, the control center server 201 uses the current position information of the emergency vehicle and the position information of each of the predetermined accident response agencies, . At this time, the accident response organization is a management organization that carries out follow-up actions for the accident-related persons transferred by emergency vehicles. For example, if the emergency vehicle is a '119 vehicle' or an 'ambulance', the accident response agency is the emergency room.

Further, the control center server 201 calculates the distance difference between each adjacent accident response agency from the current position of the emergency vehicle, and then calculates the distance to the emergency center from the current position by taking into account the road congestion rate of the traffic information transmitted from the traffic center, (T), which is the time required to arrive at the institution.

In addition, the control center server 201 determines the nearest accident response agency having the smallest estimated time (t) calculated among the adjacent accident response agencies as the final destination, and uses the predetermined optimal route algorithm to determine the current location and the final destination And analyzes the position information to detect an optimal movement path from the current position to the final destination.

In addition, when the optimal movement path is detected, the control center server 201 transmits priority signal control data to the corresponding traffic signal controller 207 such that the priority signal is given to the traffic lights belonging to the optimal movement path, ).

When the priority signal request from the PPC board 209 and the priority signal data reception from the control center server 200 are performed at the same time, the traffic signal controller 207 determines that the superimposed data is superimposed on the PPC board 209 When the PPC board receives the overlay data from the traffic signal controller, the PPC board analyzes the management information of the access request data using the predetermined table assigned a priority according to the management authority, and determines the priority.

As described above, the emergency vehicle priority signal control system 200 according to the second embodiment of the present invention detects the optimal travel route according to the current location and the declared location of the emergency vehicle, detects the traffic lights belonging to the optimal travel route, It is possible to provide a priority signal to all directions in which a road on which an emergency vehicle is traveling can be moved by providing a priority signal when an emergency vehicle passes, thereby remarkably solving the problem of inefficiency.

The emergency vehicle priority signal control system 200 also detects proximity accident response agencies, which are accident response agencies adjacent to the emergency vehicle, through the current position of the emergency vehicle and the location of each accident response agency when the emergency vehicle is in the return mode, And detects an optimal movement mechanism among the adjacent accident response agencies through the ratio and the distance difference, detects an optimal movement route for the detected optimum accident response agency, and transmits to the traffic lights belonging to the optimum movement route detected the passage of the emergency vehicle The urgency of the emergency vehicle can be maximized by providing the priority signal.

1: Emergency vehicle priority signal control system 3: In-vehicle terminal
5: roadside base station 7: traffic signal controller 9: PPC board
31: control module 32: memory 33: communication interface module
34: input module 35: GPS module
36: connection request data generation module 37: data reset module
91: control module 92: memory 93: communication interface module
94: Data verification module 95: Position tracking module 96: Entry /

Claims (8)

An emergency vehicle priority signal control system for providing a priority signal to an emergency vehicle, comprising:
An in-vehicle terminal installed in the emergency vehicle, for receiving and storing a password from a user when the power is turned on, and for sending out connection request data including current position information via GPS, and the password;
A roadside base station installed on a road and receiving connection request data from an adjacent vehicle terminal;
A traffic signal controller for managing and controlling the display system of the assigned traffic lights;
Receiving the connection request data from the roadside base station, comparing the password of the connection request data with the stored password to verify whether the connection request data is normal data, When the position of the emergency vehicle enters the setting area S for each predetermined moving direction using the position information of the connection request data periodically received, the PPC Board of the emergency vehicle. The method of claim 1, wherein the PPC board stores management information including identification code information indicating a type of management agency, password information matching with each management information,
Wherein the in-vehicle terminal transmits management information stored in the connection request data to the roadside base station by storing predetermined management information,
Wherein the PPC board searches for stored management information and password information matching each management information to verify management information and password of the connection request data. The system according to claim 2, wherein the in-vehicle terminal further comprises a data reset module for deleting the stored password when the power is turned on. The system according to claim 3, wherein the PPC board is installed inside the traffic signal controller in the form of an optional board. The method as claimed in claim 3, wherein the in-vehicle terminal is provided with a password by using any one of a method of receiving input directly from a user, a method of receiving input through a storage medium, Emergency vehicle priority signal control system. The emergency vehicle priority signal control system according to claim 3, further comprising a control center server,
The PPC board transmits the verified connection request data to the outside through the traffic signal controller,
The control center server stores connection request data transmitted through the traffic signal controller. When the emergency vehicle is in a dispatch mode for moving to a reporting place, the control center server transmits the connection request data from the current position of the emergency vehicle to the report place The traffic lights included in the optimum travel route are extracted through the location information of the previously stored traffic lights, and when the traffic lights enter one of the extracted traffic lights, The signal control data is transmitted so that the signal corresponding to the signal is expressed,
Wherein the traffic signal controller controls traffic lights according to the priority signal control data transmitted from the control center server. The emergency vehicle priority signal system according to claim 6, further comprising a traffic center for generating traffic information including road traffic rate information,
The traffic control center
The location information of each of the accident-handling agencies, which is the management or the group that carries out follow-up action to the accident-related person transferred by the emergency vehicle, and the road-stagnation rate information transmitted from the traffic center,
When the emergency mode is the return mode in which the emergency vehicle is moved from the accident location to the accident response agency, the adjacent accident response agencies adjacent to the current location of the emergency vehicle are detected using the current position of the emergency vehicle and the location of each accident response agency, (T), which is the time required for the emergency vehicle to arrive at each adjacent accident response agency from the current location, by analyzing the calculated distance difference and road congestion rate (T) calculated as a final estimated destination is determined as a final destination, and an optimal travel route from the current position of the emergency vehicle to the final destination is detected using the optimal route algorithm Emergency vehicle priority signal control system. The traffic signal controller according to claim 7, wherein the traffic signal controller transmits superimposition data indicating that the PPC board is overlapped when the priority signal request from the PPC board and the priority signal data reception from the control center server are simultaneously performed,
Wherein the PPC board analyzes the management information of the connection request data using the predetermined table assigned a priority according to the management agency when receiving the overlay data from the traffic signal controller, First, the signal control system.
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