摘要
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。
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 quan- titative calculation were made by using fault tree analysis. The minimal cut - sets of the fault tree was found, the probability important degree and key important degree of the components and the top event of the fault tree occurred probability were computed. On the basis of above, the main factors of effecting ,the train tracking were analyzed, and the corresponding improving measures was suggested.
出处
《贵州大学学报（自然科学版）》
2010年第1期10-13,共4页
Journal of Guizhou University:Natural Sciences
基金
贵州省科技厅自然科学基金(黔科合J字[2009]2128号)
关键词
列车跟踪
故障树分析
最小割集
概率重要度
关键重要度
train tracking
fault tree analysis
minimal cut - sets
probability importance degree
key important degree
