Title:
Fault Diagnosis based on Ontological Consideration of Faults
- Exhaustive Fault Hypotheses Generation -
Authors:Y. Kitamura, T. Nishiara, M. Ueda, M. Ikeda, S. Kobori, O. Kakusho and Riichiro Mizoguchi
Reference:J. of JSAI, Vol.14, No.5, to appear, 1999 (in Japanese)
Abstract: This paper describes a diagnostic method based on the ontology of faults. The ontology defines the concept of the fault event for capturing faults. On the basis of the concept, we propose a diagnostic method using the fault event models, which represent generic state transitions which could commonly occur in components. The categorization of causes of faults in the ontology helps the modelers describe such generic models. The reasoning method exhaustively generates fault hypotheses in wider range. We also integrate the reasoning method with the conventional methods. Moreover, the set of classes of faults in the ontology allows users to control the scope of suspected faults.