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Spatial alternation based train control system movement authority safety protection method

A technology for train safety protection and mobile authorization, which is applied to the control system of the operation center, railway signal and safety, railway car body components, etc. Unable to park, etc.

Active Publication Date: 2017-05-17
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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  • Spatial alternation based train control system movement authority safety protection method
  • Spatial alternation based train control system movement authority safety protection method
  • Spatial alternation based train control system movement authority safety protection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The mobile authorization security protection method of the train control system proposed in the embodiment of the present invention describes the indispensable track section information description in the MA calculation process by relying on the space transformation related theory, 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 realizes the MA safety protection algorithm module inside the ZC (Zone Comtroller, regional controller) system, and the input data of the ZC system includes basic information such as train data and line data needed for MA calculation, and the train control algorithm generates Original MA, train speed and braking...

Embodiment 2

[0103] The test was carried out according to the actual station layout of the Yizhuang Line, and the results proved that the protection method can protect the security of the train movement authorization, and the experimental results did not cause state explosion, and the calculation time can meet the actual system use.

[0104] On the basis of the original station data of Yizhuang Line, 5000 faults are randomly injected into 5000 infrastructure, original MA and train parameters through fault injection. These faults cover various situations that may occur in the train control system. Experiments show that the above algorithm can be used to protect the security of mobile authorization.

[0105] During the experiment, a total of 48 main routes in both directions were considered for testing. Table 2 lists the infrastructure elements contained in each route. The number of states and running time under different numbers of trains are counted to prove that the proposed security prot...

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Abstract

The invention provides a spatial alternation based train control system movement authority safety protection method. The method mainly comprises the steps that train control system rail sections and a spatial alternation expression method for elements included in the sections are established, and a spatial alternation algorithm for movement authority safety protection is established based on the spatial alternation expression method; based on a target terminal point distance in train movement authority, a train safety protection curve is generated, and a train trajectory calculating method is established according to the train safety protection curve; according to the spatial alternation algorithm for movement authority safety protection, protection verification is conducted on train trajectories and train movement authority, and the safety of the train trajectories and train movement authority is determined according to verification results. The method can effectively conduct safety verification on generated MA information and train trajectories, the safety of MA is ensured, and the train operating safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of train operation control, in particular to a space transformation-based security protection method for movement authorization of a train control system. Background technique [0002] The train operation control system is a set of control systems to ensure the safe operation of trains. By collecting the current running status of trains on the line and the objective conditions of the line, it monitors and controls the running speed of trains so that the trains can run safely on the line. MA (Movement Authority) is a series of line track sections that a specific train can enter in a given direction. Whether the MA is correct or not is the key to whether the train can run safely on the line, so the MA calculation function is the core function of the train operation control system. [0003] In the calculation process of the existing train operation control movement authorization, the MA computing equipment (cu...

Claims

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Application Information

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Patent Type & Authority Applications(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