• 论文 •    

基于模型诊断的候选空间单调性研究

王肖,赵相福   

  1. 浙江师范大学数理与信息工程学院
  • 出版日期:2013-12-25 发布日期:2013-12-25

Monotonicity of candidate space in model-based diagnosis

WANG Xiao,ZHAO Xiang-fu   

  1. College of Mathematics,Physics and Information Engineering
  • Online:2013-12-25 Published:2013-12-25

摘要: 为了通过增加测量点、从候选诊断空间中找出真正的故障元件集,深入研究了测量点的选择优化问题,通过逻辑推理与验证的方法,分析了候选诊断空间大小随新测量点的单调性变化的关系,并给出了可以导致候选诊断空间单调递增或单调递减的测量点特征。同时证明了增加相关测量点可导致诊断空间单调递减,为进一步选择优化的测量点提供了基本理论依据。

关键词: 基于模型的诊断, 候选空间, 单调性, 测量点, 故障诊断

Abstract: To find the real fault component set in the candidate diagnostic space by gradually adding new more measurement points,the optimization problem of choosing suitable measurement points was studied deeply,and the monotonicity of the candidate diagnostic space’s size on the new measurement point was analyzed.The characteristics of measurement points which could lead to monotonic increasing or monotonic decreasing of candidate diagnoses space was given.It provided a basic theoretical foundation for the optimization of practical measurement point selection.

Key words: model-based diagnosis, diagnostic space, monotonicity, measurement point, fault diagnosis

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