Abstract

Abstract This paper first presents an algorithm which gives sensors locations allowing to detect and to isolate the failures of system components defined in the specifications. The proposed approach uses the structural analysis of the system modelling and a bipartite graph representation of its structure. A generalised definition of the failures and a structuration of the residuals establish criteria of failures detectability and isolability. The algorithm generally gives several configurations of sensors. Hence, two additional criteria are introduced to evaluate F.D.I. systems in terms of cost and sensitivity to failures.

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