An approach for modeling and control of a discrete event system

In recent years fuzzy sets theory has been widely used in the control of many complex industrial continuous processes. However, there are few researches that have tried to use this theory in the domain of discrete event systems (DESs). In this paper, an approach for modeling and control of a high-speed discrete event system is proposed. This approach consists in the association of a fuzzy controller and a unified formalism based on hybrid Petri nets. The controller consists of a set of local fuzzy controllers which can be linked to a supervisor. Each local fuzzy controller is used to control a specific component of the system. These components are generally multi-inputs single-output processes. The Petri nets model is used to simulate the system and the interactions existing between the system and the controller