在FMS设备维修记录中发现故障诊断知识的方法

在设备维修记录中发现故障诊断的知识 .分为两个阶段 ,即准备阶段和知识发现、建立阶段 .准备阶段从维修记录中选择一条或几条相关记录 ,并将其分解成与之相关的概念和属性 ;知识发现、建立阶段在概念树和属性库中发现概念和属性间的新联系 ,进而发现知识并将其表达成故障诊断规则形式 .应用于FMS设备维修系统表明该方法行之有效 .

Knowledge Discovery in Maintenance Record of FMS Equipment for Diagnosing

To discover the knowledge of fault diagnosis in maintenance record of flexible manufacture system(FMS) equipment. An algorithm (process) was presented, which consists of ① preparatory phase in which some items in maintenance record are selected and decomposed into associated concepts and attributes, and ② discovering and establishing process, in which some possible relationships between the concepts and attributes can be established and knowledge is formulated. The rich diagnosis knowledge in maintenance record was captured through applying the method. An application of the method to the diagnosis system for FMS equipment showed that the approach is correct and effective.