列车跟踪系统故障树分析

列车跟踪系统在工作过程中受到接收器故障、发送器故障、手动介入等的作用,致使输出信息异常、手动介入定时不当,导致了列车跟踪中断。分析了影响顶事件(列车跟踪中断)失效的各种因素,建立了列车跟踪系统的故障树。利用故障树分析法对系统进行定性分析和定量计算。同时计算故障树的最小割集和系统在工作时部件的概率重要度及关键重要度和顶事件发生的概率。在此基础上,对影响列车跟踪的各主要因素进行了分析,并对其提出了相应的改进措施。

Analysis of Fault Tree of Train Tracking System

In working process,the train tracking system is affected by the receiver fault and transmitter fault,manual intervention etc.So there are abnormal output information and improper manual intervention timing resulting in train tracking interruption.In this paper,various factors influencing the top event of fault tree(the train tracking interrupt) were analyzed,then the fault tree of train tracking was set up.Qualitative analysis and quantitative calculation were made by using fault tree analysis.The minimal c...