From the decision table defined by historyfault data, we reduce the decision table in rough set theory and build the knowledge base model of expert system.
该系统从历史故障数据所形成的决策表出发,运用粗糙集理论进行约简,构建专家系统知识库模型。
2
Whereas, the joint angle method, which can improve the Q-statistic plots method, is used to isolate the fault source on line employing the historyfault knowledge.