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Security protection method for mobile authorization of train control system based on space transformation

A technology of train safety protection and space transformation, which is applied in the fields of operation center control system, railway signal and safety, railway traffic management, etc. It can solve the problems of inability to verify the result of safety, inability to ensure that the function is safe and correct, and the train cannot stop.

Active Publication Date: 2019-03-05
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] MA calculation does not guarantee the safety and error-free implementation of its functions, and cannot perform security verification on its results;
[0006] The current MA calculation function does not involve the train's speed information and braking status information, so it is considered that the train may not be able to stop before the end of the MA generated by the traditional method in the worst case and failure scenarios during operation

Method used

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  • Security protection method for mobile authorization of train control system based on space transformation
  • Security protection method for mobile authorization of train control system based on space transformation
  • Security protection method for mobile authorization of train control system based on space transformation

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Effect test

Embodiment 1

[0056] The mobile authorization security protection method of the train control system proposed by the embodiment of the present invention describes the essential track section information description in the MA calculation process based on the related theory of space transformation, and realizes the security protection function of the MA through the security protection algorithm.

[0057] The embodiment of the present invention proposes a mobile authorization security protection algorithm based on space transformation. The schematic diagram of the implementation principle of the security protection algorithm is as follows figure 1 As shown, the present invention implements the MA security protection algorithm module inside the ZC (Zone Comtroller) system. The input data of the ZC system includes basic information such as train data and line data required for MA calculations, which are generated by the train control algorithm Original MA, train speed and braking instructions, etc....

Embodiment 2

[0103] According to the actual station layout of the Yizhuang line, the test has been carried out, and the effect proves that the protection method can protect the train movement authorization, and the experimental effect does not show a state explosion, and the calculation time can meet the use of the actual system.

[0104] Based on the original station data of Yizhuang Line, 5000 faults were randomly injected into 5000 infrastructures, original MA and train parameters through fault injection. These faults cover various situations that may occur in the train control system. Experiments show that using the above algorithm can protect mobile authorization.

[0105] During the experiment, a total of 48 two-way routes were considered for testing. Table 2 lists the infrastructure elements included in each route. It is proved that the proposed security protection algorithm can effectively protect against the possible problems of mobile authorization through the statistics of the number...

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Abstract

The invention provides a security protection method for movement authorization of a train control system based on space transformation. The method mainly includes: establishing a space transformation expression method for the track section of the train control system and each element contained therein, establishing a space transformation algorithm for security protection of movement authorization based on the space transformation expression method; Generate a train safety protection curve, and establish a calculation method for a train trajectory according to the train safety protection curve; perform protection verification on the train trajectory and train movement authorization according to the space transformation algorithm of the movement authorization safety protection, and determine the Security of train trajectories and train movement authorization. The method of the invention can effectively verify the safety of the generated MA information and the train track, so as to ensure the safety of the train MA and ensure the safety of the train operation.

Description

Technical field [0001] The invention relates to the technical field of train operation control, and in particular to a safety protection method for movement authorization of a train control system based on space transformation. Background technique [0002] The train operation control system is a set of control systems to ensure the safe operation of trains. It monitors and controls the speed of trains by collecting the current operating status of trains on the line and objective conditions of the line, so that the trains can run safely on the line. MA (Movement Authority) is a series of track sections that a specific train can enter in a given direction. The correctness of MA is related to whether the train can operate safely on the line. Therefore, the MA calculation function is the core function of the train operation control system. [0003] In the existing train operation control movement authorization calculation process, the MA computing device (currently ZC device or RBC d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L23/08B61L27/00
CPCB61L23/08B61L27/20
Inventor 王海峰张勇张路吕继东徐田华
Owner BEIJING JIAOTONG UNIV