基于马尔可夫过程的地铁信号车载系统可靠性研究  

Research on reliability of metro signaling onboard system based on Markov process

作　　者：莫志刚 骆汉宾[1] Mo Zhigang;Luo Hanbin

机构地区：[1]华中科技大学土木工程与力学学院,湖北武汉430074

出　　处：《现代城市轨道交通》2018年第4期1-5,12,共6页Modern Urban Transit

基　　金：国家"十三五"重点研发计划先进轨道交通重点专项(2016YFB1200401-102B)

摘　　要：信号系统是由元器件、部件、子系统逐步组合而形成的具有特定功能的控制系统。地铁信号系统的可靠性指标是保证其安全性、可用性的决定性因素。运用马尔可夫过程方法计算信号系统的可靠性、可用性,为优化信号系统设计选择提供方案参考。通过简化系统设计、采用高可靠性元器件,提高系统基本可靠性与任务可靠性,确保CBTC信号系统在运营阶段的各项指标满足可靠性、可用性、可维修性和安全性(RAMS)的要求。Signaling system,which consists of many components,devices and sub-system,is a controlling part in metro.The reliability of metro signaling system is a key factor to ensure its safety and availability.This paper presents a method on calculating the reliability and availability of signaling system,based on Markov process,assisting researchers in optimizing their design strategy.At the same time,the method simplifies system design and high reliability components to improves the basic reliability and mission reliability of the signaling system.The parameters of CBTC satisfies the requirements of RAMS during the service.

关 键 词：地铁信号系统 可靠性 安全性 马尔可夫过程 

分 类 号：U231.7[交通运输工程—道路与铁道工程]