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Safety Analysis Method of Automatic Train Protection System Based on System Theory Hazard Analysis

A technology for automatic train protection and hazard analysis, applied in railway signal and safety, transportation center control system, railway traffic management, etc., can solve problems such as complex safety analysis and high safety requirements, achieve high analysis effectiveness and overcome limitations performance, comprehensive coverage of failure analysis

Active Publication Date: 2021-11-26
CRRC QISHUYAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a key safety control system in the automatic train control system ATC, the automatic train protection system ATP has higher safety requirements and more complex safety analysis

Method used

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  • Safety Analysis Method of Automatic Train Protection System Based on System Theory Hazard Analysis
  • Safety Analysis Method of Automatic Train Protection System Based on System Theory Hazard Analysis
  • Safety Analysis Method of Automatic Train Protection System Based on System Theory Hazard Analysis

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Embodiment Construction

[0033] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be further described in detail and in-depth below in conjunction with the accompanying drawings.

[0034] like figure 1 As shown, the input of system theory hazard analysis is system description and design model. In the application scenario of the present invention, it is the description and design model of automatic train protection system. The analysis process is mainly to first determine system accidents and dangers, and construct system layered control Institutional block diagram, identify dangerous control behaviors and establish preliminary safety constraints, further analyze how dangerous control behaviors occur, analyze the dangerous scenarios generated by them, refine and refine the proposed safety constraints, and use the obtained system control behavior safety constraints To standardize the system control behavior and improve...

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Abstract

The invention proposes a safety analysis method for an automatic train protection system based on system theory hazard analysis, which belongs to the field of safety engineering for automatic train protection systems. The present invention includes: determining system-level accidents and dangers by combing system structure composition and function logic; constructing a hierarchical control structure diagram of the system, establishing a system process model, analyzing system control behaviors, and obtaining risk control behaviors; analyzing risk control How the behavior occurs, determine the cause, clarify the risk control scenario, and formulate the corresponding safety constraints to be used in the design of the automatic train protection system. The invention also formalizes the obtained text to make the security constraint, transforms it into a linear sequential logic language, and adds it to the SMV specification model for verification. Compared with the traditional safety analysis method, the invention has wider fault analysis coverage, higher analysis effectiveness, and more effective safety constraints obtained through verification.

Description

technical field [0001] The invention belongs to the field of safety engineering of an automatic train protection system, and relates to a safety analysis method for an automatic train protection (Automaic Train Protection, ATP) system based on system theory hazard analysis. Background technique [0002] ATC (Automatic Train Control) is a train control system developed in recent years, which integrates the functions of train command, operation adjustment and train driving automation. The automatic train protection system ATP, as the core subsystem of the automatic train control system ATC, mainly realizes the overspeed protection function of the train operation to ensure that the train runs in a safe state. As the automation level of the ATP system is getting higher and higher, the functions are more complex, and the communication and interaction between the internal components of the system are more frequent, the factors affecting the operation of the system are increasing, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L23/00B61L27/00G06F30/20G06F30/15
CPCB61L23/00B61L27/00
Inventor 张辉冯敏健李培功丁可吴亦宁陈诚何国福张征硕王明岩葛学超
Owner CRRC QISHUYAN CO LTD
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