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Control system for providing priority signal for special vehicle and method thereof

A special vehicle, priority signal technology, applied in the direction of road vehicle traffic control systems, traffic control systems, instruments, etc., can solve the problems of traffic impact, signal lights cannot be restored in time, cannot meet intelligent traffic, etc. Effect

Inactive Publication Date: 2012-08-01
李志恒 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The second technical problem to be solved by the present invention is that when the prior art provides the green wave scheme, it is necessary to manually click the "execute" button to turn on the green light at the intersection signal light for the motorcade, which not only cannot meet the needs of intelligent traffic, but also can be used in motorcades. After passing the intersection, the signal lights cannot be restored to the previous working state in time, which greatly affects the normal traffic

Method used

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  • Control system for providing priority signal for special vehicle and method thereof
  • Control system for providing priority signal for special vehicle and method thereof
  • Control system for providing priority signal for special vehicle and method thereof

Examples

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Embodiment 1

[0045] This embodiment provides that the present invention provides a control system for providing priority signals for special vehicles, including:

[0046] Vehicle position detection unit: installed on special vehicles, used to determine the latitude and longitude coordinate information of the vehicle in real time and send the latitude and longitude coordinate information to the command and control center;

[0047] Data processing unit: installed inside the command and control center;

[0048] Signal light control unit: according to the processing result of the data processing unit, control the intersection signal light to provide priority signals for special vehicles;

[0049] Set monitoring points around the intersection. When the vehicle arrives at the monitoring point, the intersection signal light will provide a priority traffic signal for the vehicle. The distance between the monitoring point and the center of the intersection is greater than the speed limit of the roa...

Embodiment 2

[0080] In this example, if figure 1 As shown, multiple monitoring points are set around the intersection along the direction of vehicle travel, and the latitude and longitude coordinate information of the intersection center (x m ,y m ) and the latitude and longitude coordinate information of these monitoring points (x mn ,y mn ) is stored in the data storage module in the form of a data table. Since the GPS locks the location information of the vehicle every 1s, the distance between adjacent monitoring points is the L of the special vehicle driving at the speed limit of the road section for one second, so that the location information of each monitoring point is valid. Information. When the speed of the vehicle is fast, when the vehicle arrives at a monitoring point far from the intersection, the signal light control unit controls the intersection signal light to provide a priority release signal for the vehicle. Monitoring point 1 is used in this embodiment.

[0081] Th...

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Abstract

The invention relates to a control system for providing a priority signal for a special vehicle and a method thereof. When the special vehicle passes through an intersection, the system can set a signal lamp on a direction which is the running direction of the special vehicle into a green light. Through comparing latitude and longitude coordinate information of a special vehicle position with the latitude and longitude coordinate information of an intersection center, the special vehicle is determined whether to pass through the intersection and then the signal lamp of the intersection is automatically set into the green light. After the special vehicle passes through the intersection, the signal lamp can be automatically returned to a normal state so that influence of the special vehicle on normal traffic can be minimized.

Description

technical field [0001] The invention relates to the field of intelligent traffic control, in particular to a traffic control system and method capable of automatically setting the signal lights to green when special vehicles pass through intersections with signal lights, and providing priority signals for special vehicles. Background technique [0002] As the pace of reform and opening up continues to accelerate and promote the rapid development of society, the pressure on urban road traffic is also increasing. Although road conditions and traffic signal facilities have been greatly improved, the problem of difficult driving is still the problem of urban road traffic. main problem. Especially in the old city roads of big cities with poor road traffic capacity, the problem of traffic jams and traffic jams is more serious. Therefore, when special vehicles appear (such as guards, official convoys performing special duties, ambulance convoys, etc.) passing through intersections...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/087
Inventor 姜廷顺李志恒尹胜超邹平王一良王春露
Owner 李志恒
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