Train protection control method and device

Abstract

The embodiment of the invention provides a train protection control method and device. The method comprises the steps that if there is a train from abnormal communication to recovery, whether a trainafter communication recovery meets all credibility discrimination conditions or not is judged; if the abnormal train meets all credibility judgment conditions, after the communication is recovered, adriving permission is sent to the train subjected to communication recovery; and the credibility judgment conditions comprise that envelopes of the abnormal train and other trains are not overlapped.If the abnormal train meets all the credibility judgment conditions, after communication is recovered, the driving permission is sent to the train subjected to communication recovery, line operation of a CBTC system can be recovered in time, and the operation efficiency is improved. Meanwhile, the train envelope serves as one of credibility judgment conditions, it is guaranteed that all trains arewithin the safety range, and the running safety of the trains is guaranteed.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a train protection control method and device. Background technique [0002] The Communication Based Train Control System (CBTC system for short) will be the mainstream of the rail transit train operation control system in the future, and it has greatly improved the efficiency and performance compared with the traditional signaling system. First of all, in terms of train positioning, the communication train introduces the way of independent train positioning. The specific position of the train on the track is determined by the train based on the detection of its own train speed and distance; secondly, in terms of track tracking, on the basis of the traditional track circuit, track circuits or axle counters are generally installed beside the track as secondary track detection Equipment used to determine the position of the train on the line and realize the trackside positioni...

AI Technical Summary

Problems solved by technology

[0003] However, there are poor shunts in the track circuit, wrong resets in the axle counter, or missed detection of magnetic head failures, etc.

Therefore, in some cases, the failure of the secondary track detection equipment will lead to the inability to realize the positioning of the degraded non-communication train

[0004] In the current train protection control method, in the existing rail transit CBTC system, in some cases, the train is downgraded from a communication vehicle with a train position report to a non-communication vehicle without a position report. At this time, the CBTC system will not be able to know the vehicle In which section, the tracking of the train position cannot be realized

At this time, even if the communication is restored, since the cause of the failure is unknown, the position of the train cannot be verified, so that the timely recovery of the train system cannot be realized

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