Fault Diagnosis Based on a Predicate Logic Description of Dynamical Systems
In keeping with techniques described in Chapters 16 and 18, this chapter deals with fault diagnosis for dynamical systems on the basis of qualitative information about the system performance. Emphasis is placed on the fact that both the model of the system and the information about the current operating conditions are qualitative rather than quantitative. Alarm messages that are raised if important signals exceed given bounds may serve as an example of qualitative on-line information. As a consequence of this, characteristic of measurement information, strategies for qualitative modelling are required.
KeywordsFault Diagnosis Propositional Logic Causal Structure Diagnostic Algorithm Deduction System
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