Train control system based on Beidou short messages and train-to-train communication

Abstract

The invention provides a train control system based on Beidou short messages and train-to-train communication. The control system comprises a first train-mounted control device and a second train-mounted control device, wherein the first train-mounted control device comprises a first safety platform, a first positioning system, a first integrity checking system, a first short message device and a first wireless communication device; the second train-mounted control device comprises a second safety platform, a second positioning system, a second integrity checking system, a second short message device and a second wireless communication device; the first safety platform is in communication connection with each of the first positioning system, the first integrity checking system, the first short message device and the first wireless communication device; and the second safety platform is in communication connection with each of the second positioning system, the second integrity checking system, the second short message device and the second wireless communication device.

Description

technical field [0001] The invention belongs to the technical field of railway signals, in particular to a train control system based on Beidou short messages and train-to-vehicle communication. Background technique [0002] The train control system is responsible for controlling the operation of trains on the line. Usually, methods such as time separation or space separation are used to ensure that the trains maintain a fixed or variable interval between each other, so as to realize the starting, tracking and stopping of trains, and avoid accidents such as collisions. happened. In the above control, the train needs to obtain the authorization to drive, and the train control system needs to grasp the status information such as the position of the train. [0003] In the prior art, the train control system mainly has the following modes: [0004] 1. The ground control system divides the line into track sections through track idle monitoring equipment (such as track circuits,...

AI Technical Summary

Problems solved by technology

[0006] However, for the above method 1, the physical separation of track sections is mainly used as the basic unit of positioning and control of the train control system. Although the cost is low, the number of trackside equipment is huge, maintenance is difficult, and the control granularity is relatively coarse

Once a higher traffic density is required, even if the system increases cost investment and shortens the interval between track sections, due to the low communication speed and slow system response, it is difficult to meet the needs of the train control system;

[0007] For the above method 2, a typical system such as CTCS3 still cannot get rid of the dependence on the physical separation section of the track circuit; even in a system that uses moving block or virtual block, a typical CBTC system such as urban rail transit can greatly reduce the number of tracks The number of divisions in the section, but some still keep the axle count as a fallback fallback

However, for the vehicle-ground communication mode of mode 2, whether it is fixed block, virtual block or mobile block, a large number of communication infrastructures (such as communication base stations, wireless access points, leaky cables, waveguides, etc.) High, maintenance is difficult, and the network is susceptible to interference, and additional multiple network redundancy further increases system complexity

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