Design and Implementation of Decentralized Supervisory Control for Manufacturing System Automation

Hyoung Il Son (1)

1 Department of Human Perception, Cognition and Action

Supervisory control theory, which was first proposed by Ramadge and Wonahm, is a well-suited control theory for the control of complex systems such as semiconductor manufacturing systems, automobile manufacturing systems, and chemical processes because these are better modeled by discrete event models than by differential or difference equation models at higher levels of abstraction. Moreover, decentralized supervisory control is an efficient method for large complex systems according to the divide-and-conquer principle. This paper presents a solution and a design procedure of supervisory control problem (SCP) for the case of decentralized control. We apply the proposed design procedure to an experimental miniature computer integrated manufacturing (CIM) system. This paper presents the design of fourteen modular supervisors and one high-level supervisor to control the experimental miniature CIM system. These supervisors are controllable, nonblocking, and nonconflicting. After the verification of the supervisors by simulation, the collision avoidance supervisors for AGV system have been implemented to demonstrate their efficacy.

Mots clés: Physical Sciences

Domaines: Sciences de l'ingénieur [physics]

Hyoung Il Son. Design and Implementation of Decentralized Supervisory Control for Manufacturing System Automation. International Journal of Computer Integrated Manufacturing, 2011, 24 (03), pp.242-256. ⟨10.1080/0951192X.2011.552530⟩. ⟨hal-00673193⟩