Expert System Hardware for Fault Detection

Authors:
Miguel Rodríguez Gómez;Joseba Ezquerra Ventosa;Gerardo Aranguren Aramendía
Affiliations:
Departmento de Electrónica y Telecomunicaciones, Alameda de Urquijo, s/n, 48013 Bibao, Spain. E-mail: maprogom@bi.ehu.es;Departmento de Electrónica y Telecomunicaciones, Alameda de Urquijo, s/n, 48013 Bibao, Spain.;Departmento de Electrónica y Telecomunicaciones, Alameda de Urquijo, s/n, 48013 Bibao, Spain.
Venue:
Applied Intelligence
Year:
1998

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Abstract

This paper focuses upon the development of three newelectronic architectures of inference engines as a part of a hardwareexpert system applied to very high-speed faults detection inindustrial processes. The architecture of this expert system consistsof an inference engine (a dedicated processor that is necessary dueto the high-speed requirements and the repetitiveness of theoperation), which uses a pattern-directed inference system; a factbase, which stores the status of the signals at each moment, and astatic knowledge base, which contains the inference rules compiledfrom expert knowledge. A circuit for analyzing time is alsopresented. This allows time to be taken as another variable of theprocess and carries out a redundancy analysis simultaneously with thefault detection module.