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基于案例推理的故障诊断系统关联度计算

王东;刘怀亮;徐国华   

  1. (西安电子科技大学 机电工程学院,陕西 西安 710071)

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-04-20 发布日期:2003-04-20

Case-based reasoning for the calculation of the relational degree in a fualty diagnosis system

WANG Dong;LIU Huai-liang;XU Guo-hua

  

  1. (School of Mechano-electronic Engineering, Xidian Univ., Xi’an 710071, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-04-20 Published:2003-04-20

摘要: 将基于案例的推理方法应用于智能故障诊断系统中,讨论了故障案例库和结果库的建立,并将其用关系数据库的格式进行存储. 应用了灰色关联理论和模糊集给出了关联度的定义和计算方法,从而可以准确地检索到相似的故障案例,对检测故障给出了定性或者定量的分析.

关键词: 案例推理, 模糊集理论, 灰度关联度, 故障诊断

Abstract: Case-based reasoning is applied to a faulty diagnose system. The method of building the faulty cased base and result base is discussed, and these bases are restored according to database. A method for the definition and calculation of teh relational degree based on the grey-relational theory and fuzzy-set theory is put forword so that similar cases can be found out accurately. A fundation is laid for future research.

Key words: case-based reasoning, fuzzy-set theory, grey-relational degree, faulty diagnoses

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  • TH133