Identification comportementale des systèmes logiques en vue de leur surveillance

Stéphane Klein (1, 2) , Jean-Jacques Lesage (1) , Lothar Litz (2)

1 LURPA - Laboratoire Universitaire de Recherche en Production Automatisée
2 Institute of Automatic Control

This article presents a method to identify logic discrete event systems composed of a controller and a plant running in a closed loop. Since the identified model will be used for fault detection, the quality of the identification is a major issue. In order to quantify the accuracy between the identified model and the observed behaviour of the system, a behavioural quality metric is defined. Furthermore, the size of the identified model must be compatible for an online use. Therefore, two criteria that define the structural complexity of the identified model are introduced. Thanks to these criteria, the proposed identification algorithm allows defining the accuracy of the identified model. Finally experimental results are presented and discussed.

Mots clés: Identification; Systèmes à évènements discrets; Systèmes logiques; Justesse comportementale; Complexité structurelle; Surveillance

Domaines: Automatique / Robotique; Automatique

Stéphane Klein, Jean-Jacques Lesage, Lothar Litz. Identification comportementale des systèmes logiques en vue de leur surveillance. 5ème conférence Modélisation des Systèmes Réactifs (MSR'05), Oct 2005, Autrans, France. pp.111-126. ⟨hal-00347776⟩