摘要
介绍了一种针对信号系统故障树的分析技术,即采用故障追忆方法和LUA脚本技术。阐述了时序故障树追忆数据的过程,并对追忆数据进行故障推导。针对追忆过程中可能产生追忆的扰动性与并发性,系统采用多种任务、多角色策略,以保障整个追忆过程的完整性与实时性。结合LUA脚本系统与应用程序嵌入的方式,参照时序故障树的模型,并依据对应的LUA脚本实现了对追忆数据的检测和诊断,并把最终确定的结果归档。
One sequential fault tree detection technology based on the post disturbance review and LUA script is described, the sequential data in the failure process is reviewed, which is de- duced according to data collection. Because the post disturbance and concurrency might occur during the process of data review, the strategy of multi-task and multi-role is used,and each roles function has a personality difference, which can ensure the in- tegrity and real time process of data review. Accord to the se- quence fault tree model, the reviewed data in the LUA script are detected and diagnosed, the final results will be inserted into database.
出处
《城市轨道交通研究》
北大核心
2013年第11期98-102,共5页
Urban Mass Transit
基金
"十二五"国家科技支撑项目(2011BAGO1B05)
关键词
故障树
故障追忆
故障检测
fault tree
fault review
fault detection
