KR20200123567A - Priority signal providing system for emergency vehicle - Google Patents

Abstract

The present invention relates to a priority signal system for an emergency vehicle, which can efficiently give priority signals to emergency vehicles while minimizing road congestion even if emergency vehicles conflict by giving priority signals in accordance with the order of signal assignment after detecting the priority of signaling the emergency vehicles, when two or more emergency vehicles exist, and determine the priority of conflicting emergency vehicles with the largest residual distance (d) in the highest order by comparing the residual distance (d), when the conflicting emergency vehicles having the same emergency degree (M) exist, so as to quickly and accurately provide a priority signal even for the same emergency degree (M) variable.

Description

Priority signal providing system for emergency vehicle

The present invention relates to a priority signaling system for emergency vehicles, and in detail, when a conflict is predicted between emergency vehicles, after detecting the urgency of each emergency vehicle, the priority of signaling the emergency vehicle is determined according to the detected urgency. Accordingly, the present invention relates to a priority signaling system for emergency vehicles that can effectively improve accidents, congestion and congestion caused by a conflict of emergency vehicles by providing priority signals to emergency vehicles with the highest signal assignment priority.

As the supply of vehicles on restricted roads is popularized, traffic congestion occurs frequently throughout the road, and such traffic congestion causes environmental pollution, noise, consumption of automobile fuel consumption, and social loss due to congestion. In particular, as urban centers with dense populations increase, such traffic congestion has emerged as a social problem.

In particular, emergency vehicles such as emergency vehicles, fire engines, police vehicles, and bodyguard vehicles require mobility and punctuality because Golden Time is directly connected to life.However, due to such vehicle congestion, the emergency vehicle cannot move to the destination on time and in an emergency situation. The phenomenon of not being able to respond promptly is happening.

In order to solve this problem, Korea has conducted various studies on a priority signal system that gives priority signals to emergency vehicles in order to increase the punctuality and mobility of emergency vehicles.

In Korea Patent Registration No. 10-1243863 (name of the invention: emergency vehicle priority signal control system using UTIS), a traffic light controller gives priority to signals to emergency vehicles within the range of minimizing delays of other vehicles. An emergency vehicle priority signal control system for increasing movement speed and punctuality is disclosed.

In general, in the case of urban centers where the population and vehicles are concentrated, two or more emergency vehicles conflict frequently at one intersection, but the emergency vehicle priority signal control system considers only one emergency vehicle. When two or more emergency vehicles conflict, there is a disadvantage in that accidents, confusion, and congestion due to the conflict of emergency vehicles are not described at all.

1 is a block diagram showing a priority signal control system disclosed in Korean Patent Registration No. 10-1749244 (name of the invention: emergency vehicle priority signal control system and method).

The priority signal control system (hereinafter referred to as the prior art) 100 of FIG. 1 is installed in an emergency vehicle C and transmits connection request data to the outside when power is driven, and an in-vehicle terminal 103 installed on the road and adjacent to Roadside base station 105 that receives connection request data from in-vehicle terminal 103, traffic signal controller 107 that manages and controls the display system of assigned traffic lights, and receives connection request data from roadside base station 105 When received, verify whether the received connection request data is normal data, and then using the location information of the connection request data periodically received when the connection request data is normal data, the location of the emergency vehicle is set in the setting area for each direction of movement ( S) When entering the interior, the PPC board 109 that requests the priority signal along with the movement direction information of the emergency vehicle to the traffic signal controller and the connection request data transmitted through the traffic signal controller 107 are stored, and the emergency vehicle is reported. When in the dispatch mode to move to the place, the optimal route from the current location of the emergency vehicle to the reported place is detected using the preset optimal route algorithm, and the traffic lights included in the optimal route are extracted through the location information of the previously stored traffic lights. When an emergency vehicle enters one of the extracted traffic lights, a control center server (not shown) that transmits priority signal control data so that a signal corresponding to the direction of movement is displayed to a traffic signal controller that controls the traffic lights.

The prior art 100 configured as described above detects the optimal movement path according to the current location and the reporting place of the emergency vehicle C, detects the traffic lights belonging to the optimal road route, and then a priority signal when the emergency vehicle passes through the detected traffic lights. By providing a conventional emergency vehicle has an advantage of providing a priority signal for all directions in which the driving road can move, thereby solving the problem of inferior efficiency.

However, the prior art 100 is limited to the case where there is only one emergency vehicle at an intersection, and when applied to an actual road site, when emergency vehicles conflict, priority signals are given to all of the conflicting emergency vehicles. It has the disadvantage of increasing accidents, confusion and congestion caused by conflict.

The present invention is to solve this problem, and the problem of the present invention is that when there are two or more emergency vehicles, the priority signal is assigned according to the order of signal assignment after detecting the priority order of the emergency vehicles. It is to provide a priority signal system for emergency vehicles that can efficiently give priority signals to emergency vehicles while minimizing road congestion even if they conflict.

In addition, another problem of the present invention is that when there are conflicting emergency vehicles having the same urgency (M), the residual distance (d) is compared, and the order of giving signals to conflicting emergency vehicles with a large residual distance (d) is high. It is to provide a priority signal system for emergency vehicles that can quickly and accurately supply priority signals even for the same variable as the degree of urgency (M).

The solution means of the present invention for solving the above problem is installed in an emergency vehicle, generates dispatch-related information including a current location, a destination, and an emergency level indicating the degree of urgency of an emergency situation when dispatching, and includes the current location when moving. A vehicle control unit for generating moving information; Roadside repeaters installed on the road and receiving movement information including a current position from a connected vehicle control unit; Signal controllers for managing and controlling the display system of pre-allocated traffic lights; Upon receiving the dispatch-related information from the onboard control unit, after detecting the optimal movement path of the emergency vehicle, it is transmitted to the onboard control unit, and the corresponding emergency vehicle is tracked using the movement information transmitted from the roadside repeaters. When the emergency vehicle passes by using the location and display period information of the set traffic lights, the location and speed information of the corresponding emergency vehicle, and the optimal movement path of the corresponding emergency vehicle, a signal corresponding to the movement path of the emergency vehicle at the corresponding traffic light It includes a traffic control server that detects the current correction period in which the display period is expanded or reduced so that the display period is output, and transmits the detected current correction period to a corresponding signal controller, wherein the traffic control server includes two or more emergency vehicles in the same signal area. When this conflict, after calculating the urgency proportional to the urgency level of the conflicting emergency vehicles, the priority of signaling is detected in the order of high urgency, and the current correction period is set so that the priority signal is applied according to the priority of the signal. To detect.

In addition, in the present invention, the traffic control server includes a database server; It is driven when dispatch-related information is transmitted from the on-board control unit, and optimal movement of the emergency vehicle by analyzing and utilizing the current location and destination information of the received dispatch-related information, and road traffic information provided from outside or generated by itself. An optimal travel path detection unit for detecting a path; A movement tracking information generation unit that is driven when movement information is received from the roadside repeaters, and generates movement tracking information by tracking a corresponding emergency vehicle using the transmitted movement information; The emergency vehicle is signaled by analyzing and utilizing the current position and speed information of the emergency vehicle, the display period and location information of the traffic light, the optimal movement path information of the emergency vehicle, and the movement tracking information using a preset priority signal determination algorithm. A priority signal application determination unit determining whether a current correction period should be applied so that a signal corresponding to the optimal movement path is output when passing through the area; It is driven when it is determined that the display correction period should be applied by the priority signal application determination unit, and the current position, speed and tracking movement information of each of the adjacent emergency vehicles, which are emergency vehicles located within a preset area, and the display period of traffic lights. And a conflict determination unit that analyzes and utilizes the location information and information on the optimal movement path of the emergency vehicle to determine whether the movement paths of the adjacent emergency vehicles passing through the same signal area for a preset period (T) conflict. It is driven when it is determined that the adjacent emergency vehicles do not conflict by the conflict determination unit, and detects a display correction period in which a preset display period is expanded or reduced so that a signal corresponding to the moving path of the emergency vehicle C is output. A first display correction period detection unit; It is driven when it is determined that the adjacent emergency vehicles conflict by the conflict determination unit, and after calculating the urgency in proportion to the emergency level information of each of the conflicting emergency vehicles, which is the conflicting adjacent emergency vehicles, A second current modification period detection unit that detects a signal assignment priority according to the signal assignment order, and detects a current modification cycle such that a priority signal is applied according to the signal assignment priority; It is preferable to include a control unit for transmitting the current correction period detected by the first display correction period detection unit or the second display correction period detection unit to a corresponding signal controller.

In addition, in the present invention, the on-vehicle control unit receives category information indicating the type of emergency situation and emergency level information from the user, matches the input category information with dispatch-related information, and the database server of the traffic control server includes each category. A reference table with matching weights for each is preset and stored, and the second display correction period detection unit operates when it is determined that at least two or more emergency vehicles conflict by the conflict determination unit, and the second display correction period The detection unit includes an extraction module for extracting category information and emergency level information included in the dispatch related information transmitted from the onboard control units of conflicting emergency vehicles; An urgency calculation module that calculates the urgency (M) for each conflicting emergency vehicle by multiplying the category information and emergency level information extracted by the extraction module by a weight corresponding to the category information extracted using the reference table and an emergency level ; An urgency comparison module comparing urgency (M) of conflicting emergency vehicles calculated by the urgency calculation module; The urgency comparison module further includes a signal granting priority determining module for determining a signal granting order of conflicting emergency vehicles according to an order of high urgency (M), wherein the second display modification cycle is the signal granting priority determining module It is desirable to detect the current correction period so that the priority signal is applied according to the signal assignment priority determined by.

In addition, in the present invention, the second current correction period detection unit may include a residual distance calculation module that calculates a residual distance (d) for each conflicting emergency vehicle using current location and destination information of each of the conflicting emergency vehicles; A determination module that operates when an urgency M for each conflicting emergency vehicle is detected by the urgency calculation module, and determines whether conflicting emergency vehicles having the same urgency M among conflicting emergency vehicles exist; The determination module further comprises a residual distance comparison module that operates when there are conflicting emergency vehicles having the same urgency (M), and compares the residual distance (d) of conflicting emergency vehicles having the same urgency (M), , It is preferable that the signal assignment priority determining module determines the signal assignment priority order for conflicting emergency vehicles having the same urgency (M) in the order in which the residual distance (d) is large.

In addition, in the present invention, the on-vehicle control unit has a graphic user interface (GUI, Graphic User Interface) or a user experience (UX, User Experience) on which a category list and an emergency level list are displayed, and is previously manufactured and stored. It is preferable to display the previously produced graphic user interface or user experience to receive category information and non-emergency level information from the user.

In addition, in the present invention, the local area network is preferably an Urban Traffic Information System (UTIS) network.

According to the present invention having the above problems and solutions, when at least two or more emergency vehicles conflict, the emergency vehicles are configured to detect the priority of the emergency vehicles and then provide a priority signal according to the detected priority of the emergency vehicles. It can effectively improve accidents, confusion, and congestion caused by conflict.

In addition, according to the present invention, when there are conflicting emergency vehicles having the same urgency (M), by comparing the residual distance (d) and determining the order of giving signals to the conflicting emergency vehicles having the largest residual distance (d) among them in the highest order. It is possible to supply a priority signal quickly and accurately even for the same variable of urgency (M).

1 is a block diagram showing a traffic information collection system disclosed in Korean Patent Registration No. 10-1723380 (name of invention: traffic information collection system using a mobile communication terminal).
2 is a block diagram showing an emergency vehicle priority signal system according to an embodiment of the present invention.
3 is a relationship diagram of FIG. 2.
FIG. 4 is a block diagram illustrating a vehicle phase control unit of FIG. 2.
5 is a block diagram illustrating the traffic control server of FIG. 2.
6 is a block diagram illustrating a second display correction period detector of FIG. 5.

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

FIG. 2 is a configuration diagram showing an emergency vehicle priority signal system according to an embodiment of the present invention, and FIG. 3 is a relationship diagram of FIG. 2.

The emergency vehicle priority signaling system 1 according to an embodiment of the present invention detects the priority of signal assignment of each emergency vehicle when paths of at least two or more emergency vehicles conflict at an intersection, and then prioritizes the detected signal assignment priority. By being configured to give a signal, it is intended to remarkably solve a problem in which accidents, confusion, and congestion are caused when emergency vehicles conflict in the related art.

In addition, as shown in Figs. 2 and 3, the emergency vehicle priority signal system 1 includes an on-board control unit 5 that transmits movement information to a roadside repeater 7 that is installed and connected to the emergency vehicle C, which will be described later, Roadside repeaters (7-1), ..., (7-N) that receive movement information from the onboard control unit (5) installed at intervals and connected to the road and transmit it to the traffic control server (3) to be described later. And, signal controllers (9) that control the signal output of traffic lights according to the display period previously set or transmitted from the traffic control server (3), roadside repeaters (7-1), ..., (7-N) ), a traffic control server that monitors the movement of the emergency vehicle by analyzing and utilizing the movement information received from the traffic controllers, detects the priority signal of the emergency vehicle, and transmits information to the detected priority signal to the corresponding signal controller 9 (3), traffic control server (3), signal controllers (9) and roadside repeaters (7-1), ..., a communication network (10) that provides a data path between the (7-N) and , On-board control unit 5 and roadside repeater (7-1), ..., consisting of a local area network (20) providing a data movement path between (7-N).

At this time, in the present invention, for convenience of explanation, it has been described for example that the operation processing for detecting and determining the priority signal is performed in the traffic control server 3, but the operation processing for detecting and determining the priority signal is a separate server or signal. It is natural that the controller 9 can be configured to be performed independently and separately.

The communication network 10 supports data communication between the traffic control server 3, the on-board control unit 5, the signal controllers 9 and the roadside repeaters 7-1, ..., 7-N, and , In detail, it may be composed of a wide area communication network (WAN), a mobile communication network, a wired communication network, and LTE.

The local area network 20 supports data communication between the on-board control unit 5 and the roadside repeater (7-1), ..., (7-N), and in detail, UTIS (Urban Traffic Information System), It can be configured with Bluetooth, Wi-fi, Zig-bee, and the like.

The on-vehicle control unit 5 is a terminal installed in an emergency vehicle and has a function of a dummy terminal to generate mobile probe information, and includes a communication module that supports connection with a communication network 10 and a local area network 20 do.

In addition, the onboard control unit 5 includes an input means for receiving a command from a user, so that when an emergency dispatch occurs, destination location information, category information, and emergency level information are input from the user, and the input destination location information, category information, and The dispatch-related information generated by matching emergency level information and vehicle identification information is generated, and the generated dispatch-related information is transmitted to the traffic control server 3 through the communication network 10.

At this time, the destination location information means the location information of the destination the emergency vehicle wants to move, and the category information is emergency such as'fire','evacuation','crime','traffic accident','life accident','security', etc. It means information indicating the type of situation, and the emergency level means information that is expressed by numerically converting the urgency of the dispatch into points.

That is, when the traffic control server 3 receives dispatch-related information from the onboard control unit 5, it can recognize the dispatch of the emergency vehicle C, and then trace the trajectory of the emergency vehicle C. After using and analyzing the current traffic information and the current location and destination information of the emergency vehicle to detect the optimal moving route, the detected optimum moving route is transmitted to the onboard control unit 5 of the emergency vehicle C.

In addition, the on-vehicle control unit 5 displays the optimal moving route transmitted from the traffic control server 3 so that the user (driver) can quickly drive to the destination according to the displayed optimum moving route.

In addition, when the mobilization is finished, the on-board control unit 5 generates mobilization end information indicating that mobilization has ended according to the user's request and transmits it to the traffic control server 3, so that the traffic control server 3 can dispatch the emergency vehicle C. Make it possible to recognize the end.

In addition, the on-vehicle control unit 5, including the GPS module, detects the GPS location information miraculously, and then generates movement information matching the detected GPS location information, vehicle identification information, and time information. According to the period T, the generated movement information is transmitted to the roadside repeater 7 connected to the local area network 20.

Roadside repeaters (7-1), ..., (7-N) are installed at intervals on the road and provide a local area network (20).

In addition, roadside repeaters (7-1), ..., (7-N) connect to the onboard control unit 5 of the emergency vehicle (C) when an emergency vehicle (C) enters the communication coverage. The movement information is received from the control unit 5.

In addition, when the roadside repeaters (7-1), ..., (7-N) receive movement information from the onboard control unit 5, the traffic control server 3 receives the movement information of the emergency vehicle received through the communication network 10. ).

The signal controller 9 manages and controls the display period of at least one or more previously allocated traffic lights.

In addition, when the signal controller 9 receives the priority signal period from the traffic control server 3, the signal controller 9 controls them so that signals of the traffic lights are output according to the received priority signal period.

When the traffic control server 3 receives dispatch-related information from the onboard control unit 5 of the emergency vehicle C, the current location and destination information of the transmitted dispatch-related information and road traffic received from outside or generated by itself Using the information as an input value, the optimal travel path is detected.

At this time, the traffic information includes regional traffic information, which is narrow traffic information, regional traffic information, which is traffic information for the entire region, and global traffic information, which is traffic information for the entire national street network.

In addition, since the technology and method for detecting the optimal moving route from the current location to the destination according to the traffic conditions in the traffic control server 3 are commonly used, detailed descriptions will be omitted.

In addition, when the traffic control server 3 receives dispatch-related information from the onboard control unit 5 of the emergency vehicle C, it starts tracking (tracking) the movement route of the emergency vehicle C.

In addition, the traffic control server 3 stores the dispatch-related information received from the onboard control unit 5 of the emergency vehicle C in the database server.

In addition, when the traffic control server 3 receives movement information from roadside repeaters (7-1), ..., (7-N), it tracks the movement route of the emergency vehicle (C) using the transmitted movement information. do.

In addition, the traffic control server 3 analyzes and utilizes the location information of preset traffic lights, the current location information of the emergency vehicle C, and the optimal moving route, and calculates the current correction period so that a priority signal is given to the emergency vehicle C. And, the calculated current correction period is transmitted to the corresponding signal controller 9. At this time, the display correction cycle reduces or expands the display cycle of the traffic light corresponding to the moving direction of the emergency vehicle using the speed and position of the emergency vehicle so that the display according to the movement route is output at the time when the emergency vehicle (C) passes the intersection. This means the display period, and since such a priority signal detection technique and method is a technique commonly used in a traffic signal system, a detailed description will be omitted.

In addition, when two or more emergency vehicles conflict at the same intersection, the traffic control server 3 includes category information and emergency level information of dispatch-related information transmitted from the onboard control unit 5 of each emergency vehicle, and current location and destination location. After detecting the signal assignment priority, which is the priority signal assignment priority of each of the conflicting emergency vehicles using the information, priority signals of the corresponding emergency vehicle are sequentially assigned according to the signal assignment priority. The process and method of detecting the priority of the traffic control server 3 will be described in detail in FIG. 6 to be described later.

FIG. 4 is a block diagram illustrating a vehicle phase control unit of FIG. 2.

As shown in Fig. 4, the on-board control unit 5 includes a control module 51, a memory 52, a data transmission/reception module 53, an input module 54, a GPS module 55, and a dispatch-related information generation module. (56), a movement information generation module 57, and a display module 58.

In addition, the on-board control unit 5 is connected to a display means 512 for displaying symbols, images, characters, etc., such as a monitor, and an input means 511 such as a keypad for receiving a command from a user.

The control module 51 is an OS (Operating System) of the onboard control unit 5, and manages the control targets 52, 53, 54, 55, 56, 57, 58 And control.

In addition, when destination information is input through the input module 54, the control module 51 transmits the input destination information as dispatch-related information.

In addition, the control module 51 controls the data transmission/reception module 53 so that when dispatch related information is generated by the dispatch related information generation module 56, the generated dispatch related information is transmitted to the traffic control server 3.

In addition, the control module 51, when the optimal travel route is detected from the traffic control server 3 through the data transmission/reception module 53, inputs the detected optimum travel route information to the display module 58 to the display module 58. Thus, the optimal movement path is displayed through the display means 512.

In addition, the control module 51 activates the movement information generation module 57 when the emergency vehicle C is dispatched, and the movement information generated by the movement information generation module 57 is connected through the local area network 20. The data transmission/reception module 53 is controlled to be transmitted to the roadside repeater 7.

Vehicle identification information is preset and stored in the memory 52.

The data transmission/reception module 53 connects to the communication network 10 and the local area network 20 to transmit and receive data with the traffic control server 3 and roadside repeaters 7-1, ..., 7-N. .

The input module 54 receives data such as destination, category information, and emergency level information from the user through the input means 511.

The GPS module 55 detects current GPS location information of the emergency vehicle C in connection with a GPS satellite.

When the emergency vehicle C is dispatched, the dispatch-related information generation module 56 is driven according to the user's request, and preset vehicle identification information, destination information input from the user, category information, and emergency level information, and current It creates dispatch-related information matching the location information. At this time, the generated dispatch related information is transmitted to the traffic control server 3 through the data transmission/reception module 53 under the control of the control module 51.

The movement information generation module 57 periodically generates movement information including the current location of the emergency vehicle C and vehicle identification information.

At this time, the movement information generated by the movement information generation module 57 is transmitted to the roadside repeater 7 connected to the local area network 20 through the data transmission/reception module 53 under the control of the control module 51.

The display module 58 displays symbols, characters, images, and graphics through the display means 512.

At this time, although omitted for convenience of explanation in the present invention, the on-board control unit 5 has already prepared a graphic user interface (GUI) or a user experience in which a category list and an emergency level list are displayed. They are stored and displayed through the display means 512 when they are dispatched to receive category information and emergency level information from the user.

5 is a block diagram illustrating the traffic control server of FIG. 2.

As shown in FIG. 5, the traffic control server 3 includes a control unit 30, a database server 31, a communication interface unit 32, a dispatch registration and termination unit 33, and an optimal route detection unit 34. , A movement path tracking unit 35, a priority signal application determination unit 36, a conflict determination unit 37, a first display correction period detection unit 38, and a second display correction period detection unit 39.

The control unit 30 is an OS (Operating System) of the traffic control server 3, and control targets 31, 32, 33, 34, 35, 36, 37, 37, (31), (32), (33), (34), (35), (36), (37), ( 38) and (39) are managed and controlled.

In addition, when the control unit 30 receives dispatch-related information from the on-board control unit 5 through the communication interface unit 32, the received dispatch-related information is registered and terminated by the dispatcher 33 and the optimal travel route detection unit 34. Enter as

In addition, the control unit 30 controls the communication interface unit 32 to transmit the detected optimum travel path to the onboard control unit 5 when the optimum travel path is detected by the optimal travel path detection unit 34.

In addition, when the dispatch of the emergency vehicle C is registered by the dispatch registration and termination unit 33, the control unit 30 drives the movement route tracking unit 35 and at the same time, the roadside repeater ( The movement information received from 7) is input to the movement path tracking unit 35.

In addition, the control unit 30 inputs the movement tracking information detected by the movement path tracking unit 35 to the priority signal application determination unit 36.

In addition, when it is determined by the priority signal application determination unit 36 that the priority signal is to be given, the control unit 30 operates the conflict determination unit 37.

In addition, when it is predicted that the conflict between emergency vehicles does not occur by the conflict determination unit 37, the control unit 30 operates the first display correction period detection unit 38, but the emergency vehicle by the conflict determination unit 37 When it is predicted that the conflict is made, the second display correction period detection unit 39 is operated.

In addition, the control unit 30 communicates so that the detected current correction period is transmitted to the corresponding signal controller 9 when the current correction cycle is detected by the first display correction cycle detection unit 38 or the second display correction cycle detection unit 39. Controls the interface unit 32.

In the database server 31, the location and communication identification information of each of the roadside repeaters (7-1), ..., (7-N), the location information of the signal controller (9), communication identification information, and preset display Period information is saved.

In addition, the database server 31 stores preset category information and a reference table in which weights are matched for each category.

In addition, the optimal ear path detected by the optimal moving path detection unit 34 is temporarily stored in the database server 31.

In addition, the priority signal determination algorithm is preset and stored in the database server 31. At this time, the priority signal determination algorithm analyzes and utilizes the current position and speed of the emergency vehicle, the display period and location information of the traffic light, information on the optimum travel path of the emergency vehicle, and the tracking movement information detected by the movement path tracking unit 35. Therefore, it is an algorithm for determining whether or not the current correction period should be applied so that the signal corresponding to the optimal movement path is output when the corresponding emergency vehicle passes the corresponding traffic light.

In addition, a conflict determination algorithm is preset and stored in the database server 31. At this time, the conflict determination algorithm analyzes and utilizes the current position and speed of each of the adjacent emergency vehicles, which are emergency vehicles located within a preset area, the display period and location information of traffic lights, and the information on the optimal travel route of the emergency vehicle, and uses the preset period. It is an algorithm that determines whether the moving paths of adjacent emergency vehicles passing through the same intersection during (T) conflict.

In addition, the display period of each of the signal controllers 9 is preset and stored in the database server 31.

The dispatch registration and termination unit 33 registers and terminates the dispatch of the onboard control unit 5 of the emergency vehicle C.

When the optimal movement path detection unit 34 receives movement-related information from the onboard control unit 5, it is driven under the control of the control unit 30.

In addition, the optimal travel route detection unit 34 analyzes and utilizes the current location and destination information of the dispatch-related information transmitted from the onboard control unit 5 of the emergency vehicle C, and road traffic information transmitted from outside or generated by itself. Thus, the optimal travel path of the emergency vehicle C is detected. At this time, the detected optimal movement path is stored in the database server 31.

When the movement path tracking unit 35 receives movement information from the roadside repeater 7, it is driven under the control of the controller 30. At this time, one of the roadside repeaters 7 continuously transmits movement information to the traffic control server 3 according to the driving of the emergency vehicle C, so the movement route tracking unit 35 It will be driven continuously until the mobilization is finished.

Further, the movement path tracking unit 35 detects movement tracking information by tracking the corresponding emergency vehicle C using the input movement information. At this time, the detected movement tracking information is input to the priority signal application determination unit 36 under the control of the controller 30.

The priority signal application determination unit 36 analyzes the current position and speed of the emergency vehicle, the display period and location information of the traffic lights, the optimal movement route information of the emergency vehicle, and movement tracking information using a preset priority signal determination algorithm. And, when the emergency vehicle passes through the corresponding traffic light, it is determined whether the current correction period should be applied so that the signal corresponding to the optimal movement path is output.

At this time, the control unit 30 does not perform a separate operation when it is determined that 1) the priority signal application determination unit 36 does not need to apply the current correction period, and 2) the priority signal application determination unit ( When it is determined by 36) that the current correction period should be applied, the conflict determination unit 37 is operated.

The conflict determination unit 37 operates under the control of the controller 30 when it is determined by the priority signal application determination unit 36 that the current correction period should be applied.

In addition, the conflict determination unit 37 uses a preset conflict determination algorithm, the current position, speed and tracking movement information of each of the adjacent emergency vehicles, which are emergency vehicles located within a preset area, and the display period and location information of traffic lights, It is determined whether the movement paths of adjacent emergency vehicles passing through the same intersection during a preset period (T) are in conflict by analyzing and utilizing the information on the optimal movement path of the emergency vehicle.

At this time, the control unit 30 operates the first display correction period detection unit 38 when 1) when it is predicted that the emergency vehicles do not conflict by the conflict determination unit 37, and 2) the conflict determination unit 37 When it is predicted that the emergency vehicles conflict by ), the second display correction period detection unit 39 is operated.

The first display correction period detection unit 38 operates when it is predicted that emergency vehicles do not conflict by the conflict determination unit 37.

In addition, the first display correction period detection unit 38 extends or reduces a preset display period so that a signal corresponding to the moving path of the emergency vehicle C is output when the emergency vehicle C passes the corresponding intersection. Detect the cycle.

At this time, the current correction period detected by the first display correction period detection unit 38 is transmitted to the corresponding signal controller 9 through the communication interface unit 32 under the control of the control unit 30.

6 is a block diagram illustrating a second display correction period detector of FIG. 5.

The second display correction period detection unit 39 operates when it is predicted that at least two or more emergency vehicles conflict by the conflict determination unit 37.

In addition, as shown in Fig. 6, the second display correction period detection unit 39 includes a category information extraction module 391, an emergency level information extraction module 392, a residual distance calculation module 393, and an urgency calculation module ( 394), an urgency comparison module 395, a determination module 396, a residual distance comparison module 397, a signal assignment priority determination module 398, and a current correction period detection module 399.

The category information extraction module 391 extracts category information for each adjacent emergency vehicle by extracting category information included in the dispatch-related information transmitted from the onboard control unit 5 of adjacent emergency vehicles. At this time, the category information refers to information indicating the type of emergency situation, such as'fire','evacuation','crime','traffic accident','personal accident', and'security'.

The emergency level information extraction module 392 extracts emergency level information for each adjacent emergency vehicle by extracting emergency level information included in dispatch-related information transmitted from the onboard control unit 5 of adjacent emergency vehicles. At this time, the emergency level information means information indicating the urgency of the dispatch as a score.

The residual distance calculation module 393 calculates the residual distance d for each adjacent emergency vehicle by using the current location and destination information of each of the adjacent emergency vehicles.

The urgency calculation module 394 includes the category information extracted by the category information extraction module 391, the urgency level information extracted by the urgency level information extraction module 392, and a reference table in which weights are matched for each category. By utilizing the weight and multiplying the emergency level, the urgency (M) for each adjacent emergency vehicle is calculated.

The urgency comparison module 395 compares the urgency M of each neighboring emergency vehicle using the urgency M for each neighboring emergency vehicle calculated by the urgency calculation module 394.

The determination module 396 determines whether there are adjacent emergency vehicles having the same urgency M among the adjacent emergency vehicles by the urgency comparison module 395.

In addition, if the determination module 396 determines that there are adjacent emergency vehicles having the same urgency (M), the control unit 30 operates the residual distance comparison module 397, and if the same urgency (M) is If it is determined that the adjacent emergency vehicles do not exist, the control unit 30 operates the signal assignment priority determining module 398.

The residual distance comparison module 397 operates when it is determined by the determination module 396 that adjacent emergency vehicles having the same degree of urgency (M) exist.

In addition, the residual distance comparison module 397 compares the residual distance d of each of the adjacent emergency vehicles having the same degree of urgency (M).

The signal assignment priority determining module 398 determines the signal assignment priority according to the order in which the urgency M is high.

At this time, when there are adjacent emergency vehicles having the same urgency (M), the signal assignment priority determining module 398 determines their signal assignment order by the residual distance comparison module 397 in the order of the largest remaining distance (d). Decide.

The current correction cycle detection module 399 detects the current correction cycle so that the priority signal is applied according to the signal assignment priority determined by the signal assignment priority determination module 398.

At this time, the current correction cycle detected by the current correction cycle detection module 399 of the second display correction cycle detection unit 38 is transferred to the corresponding signal controller 9 through the communication interface unit 32 under the control of the control unit 30. Is transmitted.

As described above, when at least two emergency vehicles conflict, the priority signal system 1 for an emergency vehicle according to an embodiment of the present invention detects the priority of the emergency vehicles and then provides a priority signal according to the detected priority. By being configured to be configured, accidents, confusion and congestion caused by conflict of emergency vehicles can be effectively improved.

In addition, the priority signaling system 1 for emergency vehicles of the present invention compares the remaining distance d and signals the conflicting emergency vehicle with the larger residual distance d when there are conflicting emergency vehicles having the same urgency (M). By determining the assigned priority in higher order, it is possible to quickly and accurately supply the priority signal even for the same variable as the urgency (M).

1: Emergency vehicle priority signal system 3: Traffic control server 5: Onboard control unit
7-1, ..., 7-N: Roadside repeaters 9: Signal controller 10: Communication network
20: local area network 30: control unit 31: database server
32: communication interface unit 33: dispatch registration and termination unit
34: optimal movement path detection unit 35: movement path tracking unit
36: Priority signal application determination unit 37: Conflict determination unit
38: first display correction cycle detection unit 39: second display correction cycle detection unit
51: control module 52: memory 53: data transmission/reception module
54: input module 55: GPS module 56: dispatch-related information generation module
57: movement information generation module 58: display module

Claims (6)

An on-board control unit installed in an emergency vehicle and generating movement-related information including a current location, a destination, and an emergency level indicating an urgency of an emergency situation when moving, and generating movement information including a current location when moving;
Roadside repeaters installed on the road and receiving movement information including a current position from a connected vehicle control unit;
Signal controllers for managing and controlling the display system of pre-allocated traffic lights;
Upon receiving the dispatch related information from the onboard control unit, after detecting the optimum movement path of the emergency vehicle, it is transmitted to the onboard control unit, and the corresponding emergency vehicle is tracked using the movement information transmitted from the roadside repeaters. When the emergency vehicle passes by using the location and display period information of the set traffic lights, the location and speed information of the corresponding emergency vehicle, and the optimal movement path of the corresponding emergency vehicle, a signal corresponding to the movement path of the emergency vehicle at the corresponding traffic light It includes a traffic control server that detects the current correction period in which the display period is expanded or reduced so that the display period is output, and transmits the detected current correction period to the corresponding signal controller,
The traffic control server
When two or more emergency vehicles conflict in the same signal area, after calculating the urgency proportional to the urgency level of the conflicting emergency vehicles, the priority of signaling is detected in the order of high urgency, and Priority signal system for emergency vehicles, characterized in that detecting the current correction period so that the priority signal is applied. The method of claim 1, wherein the traffic control server
Database server;
It is driven when dispatch-related information is transmitted from the on-board control unit, and optimal movement of the emergency vehicle by analyzing and utilizing the current location and destination information of the received dispatch-related information, and road traffic information provided from outside or generated by itself. An optimal travel path detection unit for detecting a path;
A movement tracking information generation unit that is driven when movement information is received from the roadside repeaters, and generates movement tracking information by tracking a corresponding emergency vehicle using the transmitted movement information;
The emergency vehicle is signaled by analyzing and utilizing the current position and speed information of the emergency vehicle, the display period and location information of the traffic light, the optimal movement path information of the emergency vehicle, and the movement tracking information using a preset priority signal determination algorithm. A priority signal application determination unit determining whether a current correction period should be applied so that a signal corresponding to the optimal movement path is output when passing through the area;
It is driven when it is determined that the display correction period should be applied by the priority signal application determination unit, and the current position, speed and tracking movement information of each of the adjacent emergency vehicles, which are emergency vehicles located within a preset area, and the display period of traffic lights. And a conflict determination unit that analyzes and utilizes the location information and information on the optimal movement path of the emergency vehicle to determine whether the movement paths of the adjacent emergency vehicles passing through the same signal area for a preset period (T) conflict.
It is driven when it is determined that the adjacent emergency vehicles do not conflict by the conflict determination unit, and detects a display correction period in which a preset display period is expanded or reduced so that a signal corresponding to the moving path of the emergency vehicle C is output. A first display correction period detection unit;
It is driven when it is determined that the adjacent emergency vehicles conflict by the conflict determination unit, and after calculating the urgency in proportion to the emergency level information of each of the conflicting emergency vehicles, which is the conflicting adjacent emergency vehicles, A second current modification period detection unit that detects a signal assignment priority according to the signal assignment order and detects a current modification cycle such that a priority signal is applied according to the signal assignment priority;
And a control unit for transmitting the current correction period detected by the first display correction cycle detection unit or the second display correction cycle detection unit to a corresponding signal controller. The method of claim 2, wherein the vehicle control unit
Category information indicating the type of emergency situation and emergency level information are input from the user, and the input category information is matched with dispatch-related information,
In the database server of the traffic control server, a reference table in which weights are matched for each category is preset and stored,
The second display correction period detection unit
Operates when it is determined that at least two or more emergency vehicles are in conflict by the conflict determination unit,
The second display correction period detection unit
An extraction module for extracting category information and emergency level information included in dispatch-related information transmitted from the onboard control units of conflicting emergency vehicles;
An urgency calculation module that calculates the urgency (M) for each conflicting emergency vehicle by multiplying the category information and emergency level information extracted by the extraction module by a weight corresponding to the category information extracted using the reference table and an emergency level ;
An urgency comparison module for comparing urgency (M) of conflicting emergency vehicles calculated by the urgency calculation module;
The urgency comparison module further comprises a signal granting priority determining module for determining a signal granting order of conflicting emergency vehicles according to an order of high urgency (M),
The second present correction period is a priority signal system for emergency vehicles, characterized in that for detecting the present correction period so that the priority signal is applied according to the signal grant priority determined by the signal grant priority determining module. The method of claim 3, wherein the second display correction period detection unit
A residual distance calculation module that calculates a residual distance (d) for each conflicting emergency vehicle by using current location and destination information of each of the conflicting emergency vehicles;
A determination module that operates when an urgency M for each conflicting emergency vehicle is detected by the urgency calculation module, and determines whether conflicting emergency vehicles having the same urgency M among conflicting emergency vehicles exist;
The determination module further comprises a residual distance comparison module that operates when there are conflicting emergency vehicles having the same urgency (M), and compares the residual distance (d) of conflicting emergency vehicles having the same urgency (M), ,
The signal assignment priority determining module
Priority signaling system for emergency vehicles, characterized in that, for conflicting emergency vehicles having the same degree of urgency (M), the priority signal is determined according to the order in which the residual distance (d) is large. The method of claim 4, wherein the vehicle control unit
A graphic user interface (GUI, Graphic User Interface) or user experience (UX, User Experience) that displays a category list and an emergency level list is pre-made and stored. Priority signaling system for emergency vehicles, characterized in that by displaying a user experience and receiving category information and emergency level information from the user. 6. The priority signaling system for emergency vehicles according to claim 5, wherein the local area communication network is a UTIS (Urban Traffic Information System) network.

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