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This paper deals with Petri net model reconfiguration of discrete manufacturing systems. A technique for model transformation is proposed as a base of a fault recovery strategy; this novel technique is based on the structural redundancies of the model. A set of sub-models derived from t-invariants together with a XOR composition operation form an abelian group allowing adapting the model to new operation...
This work deals with fault recovery of discrete manufacturing systems modeled by Petri nets (PN). A technique for fault recovery that exploits the redundancies included in the PN model is proposed. This work presents two main contributions; the first one is a structural method for finding out the redundancies in the PN system model. Based on these redundancies, the second contribution is an algebraic...
This paper addresses fault recovery of discrete manufacturing systems through the reconfiguration of the controller. It is assumed that the system is controlled using a Petri net regulation controller scheme. Based on this scheme, this paper presents a novel control reconfiguration technique for fault recovery. The main contribution of this paper is an incidence matrix based technique and an abelian...
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