基于动态故障树的车站计算机联锁系统冗余结构可靠性研究  

Research on reliability of redundant structure of station computer interlocking system based on dynamic fault tree

作　　者：王月太 吴文艾 高贤辉 WANG Yuetai;WU Wenai;GAO Xianhui(Xi'an Traffic Enginering Institute,Shanxi Xi'an 710300,China;China Railway Xi'an Group Co.Ltd,Shanxi Xi'an 710000,China)

机构地区：[1]西安交通工程学院,西安710300 [2]中国铁路西安局集团有限公司,西安710000

出　　处：《自动化与仪器仪表》2021年第4期31-34,共4页Automation & Instrumentation

基　　金：陕西省教育厅科研计划项目资助:基于动态故障树的计算机联锁系统的可靠性分析研究(No.20JK0746)。

摘　　要：随着铁路事业的高速发展,铁路信号的传输量逐渐增大,加大了信号传输设备的压力。车站计算机联锁系统,作为控制信号设备的核心,其可靠性直接影响了列车能否安全、高效运行。基于国内计算机联锁系统多为二乘二取二冗余结构,应用马尔可夫过程分析了该结构的可靠性,并针对马尔可夫过程存在的建模过程复杂等问题,给出了动态故障树的分析方法研究其可靠性。研究结果表明,在全故障模式下,基于动态故障树的二乘二取二计算机连锁系统的可靠性最高。With the rapid development of railway industry,the amount of railway signal transmission gradually increases,increasing the pressure of signal transmission equipment.Station computer interlocking system,as the core of control signal equipment,its reliability directly affects whether the train can run safely and efficiently.Based on the fact that most of the domestic computer interlocking systems are double 2-out-of-2 redundancy structure,this paper analyzes the reliability of the structure by using Markov process.Aiming at the problems of complex modeling process existing in Markov process,a dynamic fault tree analysis method is proposed to study its reliability.The results show that the reliability of the double two out of two computer interlocking system based on dynamic fault tree is the highest under the full fault mode.

关 键 词：计算机联锁系统 二乘二取二 马尔可夫 动态故障树 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]