STPA based safety analysis method applied to next generation train operation control system
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摘要: 城市轨道交通行业已在开发下一代列车运行控制(NGTC)系统。由于NGTC的设计缺乏足够的经验或相关标准,使得传统的安全分析方法很难为其定义合适的安全需求。将系统理论过程分析方法应用于NGTC系统设计概念定义阶段的安全分析过程中,发现了一些在传统的安全分析中容易忽略的潜在危害。在此基础上,扩展了列车移动授权的概念,提出了新的安全约束条件,不仅提高了NGTC的安全性,而且证明了系统理论过程分析(STPA)在列车运行控制系统安全分析中的适用性和可用性。
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关键词:
- 下一代列车运行控制系统 /
- 软件密集型 /
- 安全分析 /
- 系统理论过程分析 /
- 移动授权
Abstract: At present, urban rail transit industry has been developing the next generation train operation control(NGTC) system.Due to the lack of sufficient experience or relevant standards in the design of NGTC system, it is difficult to define appropriate security requirements for it by using traditional security analysis methods.This paper applied the system theory process analysis method to the safety analysis of the concept definition stage of NGTC system design, and found some potential hazards which were easy to be ignored in the traditional safety analysis. On this basis, the paper extended the concept of train movement authority(MA) and proposed a new security constraint, which not only improved the security of NGTC system, but also proved the applicability and availability of system-theoretic processes analysis (STPA) in the security analysis of train operation control system. -
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期刊类型引用(3)
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