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Tramcar highway crossing signal priority control method based on concentrated differential GPS positioning

A GPS positioning and crossing signal technology, which is applied in the control system of the operation center, the traffic control system of road vehicles, the traffic control system, etc., can solve the problems that the priority control of the tramway crossing signal cannot be implemented, and cannot be satisfied. Priority control, strong versatility, and improved accuracy

Active Publication Date: 2014-08-27
CRRC NANJING PUZHEN CO LTD
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Problems solved by technology

[0004] However, the existing tramway crossing operation control method cannot meet the requirements of the new generation of urban traffic signal control system, so it is impossible to implement the tramway crossing signal priority control

Method used

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Embodiment

[0019] In this embodiment, the front and rear driver's cabs of the electric car are equipped with GPS receivers and 3G wireless communication vehicle-mounted stations respectively; the train monitoring center outside the electric car is located at the GPS reference station where the position coordinates have been accurately known, and the train monitoring center is equipped with a 3G communication access machine , computer, electronic map, and the train monitoring center communicate with the external urban traffic signal control system through the network.

[0020] In this embodiment, the tramway crossing signal priority control method based on centralized differential GPS positioning includes:

[0021] In the first step, the GPS receivers in the front and rear cabs of the tram receive the GPS signals and analyze them as GPS positioning information, and then the 3G wireless communication vehicle station packs all the GPS positioning information and the vehicle number informatio...

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Abstract

The invention relates to a tramcar highway crossing signal priority control method based on concentrated differential GPS positioning. The method includes the steps that a differential correction value is obtained through calculation by means of accurate position coordinates of a GPS reference station and actual GPS positioning information; differential correction is carried out on GPS positioning information of each tramcar, so that operation data of each tramcar are obtained; a city traffic signal control system carries out highway crossing signal priority control according to the operation data of the tramcars. According to the method, investment of grade crossing tramcar detection equipment can be saved, positioning precision of the tramcars is improved, and intelligent control of tramcar grade crossing signal lamps is achieved. The method can be smoothly integrated with the new-generation city traffic signal control system, and tramcar highway crossing signal priory control is achieved; the method is high in universality and suitable for the public traffic system of any bus rapid transit mode, concentrated differential GPS technique upgrading can be carried out on the tramcars with a common GPS positioning function, and positioning precision is improved.

Description

technical field [0001] The invention relates to a signal priority control method for tramway crossings based on centralized differential GPS positioning, which is suitable for urban rail transit operation control. Background technique [0002] In the modern tram operation control system, the level crossing signal priority control technology is one of the most important and key technologies to realize the priority right of way of modern trams. Most of the traditional tram operation control adopts two methods, one is: adding special tram inspection equipment near the level crossing, which makes the installation, adjustment and maintenance complicated and difficult, and because the detection equipment is generally far away from the level crossing Closer, from the detection of trains to the need for priority control of level crossing signal lights, the time interval is relatively short, and it is easy to affect normal traffic vehicles on the road; the other is: using general dif...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/097G08G1/127B61L27/00
Inventor 谢勇奚华峰袁江波刘婷婷徐志荣吴恒阳郑磊尹燕萍黄坤林苏国强董晓鹏
Owner CRRC NANJING PUZHEN CO LTD
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