Diagnosis and repair of dependent failures in the control system of a mobile autonomous robot |
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Authors: | Jörg Weber Franz Wotawa |
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Affiliation: | 1.Technische Universit?t Graz,Institute for Software Technology,Graz,Austria |
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Abstract: | Detecting, locating and repairing faults is a hard task. This holds especially in cases where dependent failures occur in
practice. In this paper we present a methodology which is capable of handling dependent failures. For this purpose we extend
the model-based diagnosis approach by explicitely representing knowledge about such dependencies which are stored in a failure
dependency graph. Beside the theoretical foundations we present algorithms for computing diagnoses and repair actions that
are based on these extensions. Moreover, we introduce a case study which makes use of a larger control program of an autonomous
and mobile robot. The case study shows that the proposed approach can be effectively used in practice. |
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