Fault Diagnosis of Discrete Event Systems Using Components Fault-Free models

Moamar Sayed-Mouchaweh (1) , A. Philippot (2) , V. Carre-Menetrier (2) , Bernard Riera (2)

1 Mines Douai EMD - École des Mines de Douai
2 CRESTIC - Centre de Recherche en Sciences et Technologies de l'Information et de la Communication - EA 3804

This paper presents a Boolean discrete event model-based approach for Fault Detection and Isolation of manufacturing systems. This approach considers a system as a set of components composed of discrete actuators and their associated discrete sensors. Each component model is only aware of its local desired, fault-free, behavior. The occurrence of any fault entailing the violation of the desired behavior is detected and the potential responsible candidates are isolated using event sequences, time delays between correlated events and state conditions, characterized by sensors readings and control signals issued by the controller. An application example is used to illustrate the approach.

Mots clés: Discrete-Event Systems; Decentralized approaches; Diagnosis; Automata; Manufacturing System

Domaines: Automatique / Robotique

Moamar Sayed-Mouchaweh, A. Philippot, V. Carre-Menetrier, Bernard Riera. Fault Diagnosis of Discrete Event Systems Using Components Fault-Free models. 20th International Workshop on Principles of Diagnosis DX'09, Jun 2009, Stockholm, Sweden. ⟨hal-02337905⟩