北斗监测站故障诊断专家系统设计及实现

Design and Realization of Fault Diagnosis Expert System for Beidou Monitoring Station

针对北斗监测站故障诊断时间长、故障诊断结果对值勤人员专业素质依赖性较大的问题,设计并实现了一种基于故障树分析法的北斗监测站故障诊断专家系统。系统采用框架和规则相结合的方法进行知识表示,并为每个故障树节点设置故障判断规则索引,以缩小推理机知识搜索范围。应用结果表明,系统能够实现故障自动诊断及快速定位,将故障诊断时间由15 min左右缩短至1 min内。

In order to solve the problem that the fault diagnosis time is long and the fault diagnosis result may not be accurate,a fault diagnosis expert system for Beidou monitoring station based on fault tree analysis is designed and implemented.The expert system adopts the methods of combining frame and rule to represent knowledge,and sets the fault judgment rules index for the fault tree nodes to reduce the knowledge search scope of inference engine.The application results show that the fault diagnosis expert system can realize fault diagnosis quickly and automatically,and reduce the fault diagnosis time form 15 minutes to 1 minute.