计算机工程与应用2011，Vol.47Issue(9)：221-224,239,5.DOI:10.3778/j.issn.1002-8331.2011.09.064
模糊SDG故障诊断方法及其应用
Fault diagnosis method and application based on fuzzy signed directed graph
摘要
Abstract
If the thresholds are set unreasonably,the fault diagnosis method based on signed directed graph may cause the fault is predicted incorrectly or ignored. In this paper, the model of fuzzy signed directed graph is presented, in which the three-stage SDG model is substituted by the five-stage SDG model, the parameter node is given the fuzzy membership, and the corresponding fuzzy reasoning algorithm is presented. Fuzzy SDG model and fuzzy SDG reasoning are introduced into a fault diagnosis example of atmospheric and vacuum distillation unit,which verifies the method is effective and feasible.关键词
符号有向图(SDG)/模糊符号有向图(SDG)/模糊阈值/模糊推理Key words
Signed Directed Graph/fuzzy Signed Directed Graph(SDG)/fuzzy threshold/fuzzy reasoning分类
信息技术与安全科学引用本文复制引用
马昕,张贝克..模糊SDG故障诊断方法及其应用[J].计算机工程与应用,2011,47(9):221-224,239,5.基金项目
黑龙江省科技攻关项目(the Project of Scientific and Technical Key Problems of Heilongiiang Province No.GB06A106). （the Project of Scientific and Technical Key Problems of Heilongiiang Province No.GB06A106）
