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Contribution of qualitative analysis and fuzzy sets to industrial process fault diagnosis: application to the Diapason project

机译:定性分析和模糊集对工业过程故障诊断的贡献:在Diapason项目中的应用

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The construction of fault indicators is the foundation of model-based fault diagnosis. The development of precise mathematical models for complex facilities is generally difficult and expensive; new and less constraining techniques, notably seeking to account for behaviour, open new perspectives for fault detection and diagnosis. The authors propose a combined approach based on quantitative processing with qualitative assessment of the results. A veritable numerical-symbolic interface then ensures a more satisfactory balance between the two levels of knowledge - analytic and heuristic -necessary to optimize the performance of a diagnostic procedure. Our supervision support system DIAPASON provides operators of industrial continuous processes with an aid to watch and diagnosis. The reasoning is based on a causal graph and on a knowledge base. After an overview of qualitative simulation, defect diagnosis and fault diagnosis, the way in which these three cooperate in DIAPASON is amplified. (authors). 21 refs., 5 figs. (Atomindex citation 26:038468)

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