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RAM Assessment of CTCS-1 ATP Based on Enhanced Bayesian Network

机译:基于增强贝叶斯网络的CTCS-1 ATP RAM评估

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摘要

China Railway Corporation proposes the upgrading and updating plan of general speed train (train running speed under 160 km/h) to improve the outdated status of general speed railway. The new CTCS-1 Automatic Train Protection (ATP) system will be safer, more reliable and advanced than the existing train control system. In this paper, enhanced Bayesian Network (BN) is first used in CTCS-1 ATP RAM assessment, which is mainly used to analyze the structure of two different ATPs and establish the corresponding enhanced BN models. Finally, the Reliability, Availability, and Maintainability (RAM) of these two different ATPs are obtained and analyzed through enhanced BN simulation model. The assessment results show that the RAM indicators of CTCS-1 modular redundancy ATP and system redundancy ATP can satisfy the requirements of Chinese train control system requirement specifications, but the RAM indicators of CTCS-1 modular redundancy ATP are better than CTCS-1 system redundancy ATP.
机译:中国铁路总公司提出了普通高速列车的升级和更新计划(列车运行速度在160 km / h以下),以改善普通高速铁路的过时状况。新的CTCS-1自动列车保护(ATP)系统将比现有的列车控制系统更加安全,可靠和先进。本文首先在CTCS-1 ATP RAM评估中使用增强贝叶斯网络(BN),主要用于分析两种不同ATP的结构并建立相应的增强BN模型。最后,通过增强的BN仿真模型获得并分析了这两种不同ATP的可靠性,可用性和可维护性(RAM)。评估结果表明,CTCS-1模块化冗余ATP和系统冗余ATP的RAM指标可以满足中国列车控制系统需求规范的要求,但CTCS-1模块化冗余ATP的RAM指标优于CTCS-1系统冗余ATP。

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