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A mobile authorization calculation method based on vehicle-to-vehicle communication cbtc system

A technology of mobile authorization and calculation method, which is applied in vehicle-to-vehicle communication, vehicle wireless communication service, service based on specific environment, etc. It can solve the problems of mobile authorization calculation error, information out of synchronization, etc., to eliminate communication delay and ensure correctness sexual effect

Active Publication Date: 2020-08-18
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0009] Aiming at the defects existing in the prior art, the object of the present invention is to provide a mobile authorization calculation method of a vehicle-to-vehicle communication CBTC system, which solves the problem of mobile authorization calculation errors caused by information asynchronism in the vehicle-to-vehicle communication process

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  • A mobile authorization calculation method based on vehicle-to-vehicle communication cbtc system
  • A mobile authorization calculation method based on vehicle-to-vehicle communication cbtc system
  • A mobile authorization calculation method based on vehicle-to-vehicle communication cbtc system

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Embodiment Construction

[0037] The following is attached Figure 2-9 The present invention is described in further detail.

[0038] The invention adds an information synchronization module and a timeliness verification module to the traditional MA calculation process, and combines them with the mobile authorization calculation to obtain a mobile authorization synchronization calculation method. The information flow diagram of the mobile authorization calculation process is as follows: figure 2 .

[0039] The information synchronization module uses the vehicle-to-vehicle communication information synchronization algorithm with the core of train synchronous joining and clock correction to ensure the synchronization of vehicle-to-vehicle communication information. The timeliness verification module performs timeliness verification on the external train information according to the timeliness verification criterion, and then the external train information that meets the timeliness requirement enters t...

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Abstract

The present invention is a mobile authorization calculation method based on the vehicle-to-vehicle communication CBTC system. In step 1, the MA calculation module periodically receives information from other modules. In step 2, the train judges whether any external train is in the communication range. If there is an external train in the communication range, the train Establish communication with external trains, obtain external train information through the communication module, and input the external train information to the information synchronization module. The external train information that meets the timeliness requirements is input into the MA calculation module; step 4. The MA calculation module determines that the train closest to the front of the vehicle is a dynamic obstacle according to the train information that meets the timeliness requirements. Stationary trains are static obstacles; among the two types of obstacles, the obstacle closer to the head of the vehicle is the nearest obstacle, that is, the end point of MA.

Description

technical field [0001] The invention belongs to the technical field of rail transit operation control, and relates to a mobile authorization calculation method for vehicle-to-vehicle communication CBTC. Background technique [0002] At present, Communications-Based Train Control1 (CBTC) is a train operation control system widely used in the field of urban rail transit. There are a large number of ground equipment in this system, which makes the cost high and the maintenance is cumbersome; train-ground -The communication method of the vehicle causes problems such as high communication delay in the system. Vehicle-to-vehicle communication CBTC system is a new type of train operation control system that came into being to solve the above problems. This system uses vehicle-to-vehicle communication technology to enable trains to communicate directly and transmit information about their own positions, speeds, and running directions to each other. information. Then, the on-board ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L27/00H04W4/46H04W4/42H04W56/00H04W12/06H04W12/00H04W12/084H04W12/61
CPCH04W4/46H04W4/42H04W56/001H04W12/06H04W12/63H04W12/69B61L2027/204B61L27/20B61L27/40
Inventor 唐涛李开成王海峰李建雄陈坦李兰心邱晨马梓尧
Owner BEIJING JIAOTONG UNIV
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