A component based approach for the design of FMS control and supervision

This paper deals with the reconfiguration of flexible manufacturing systems. It presents a methodology that addresses the whole reaction loop toward failures. The major key point is the component notion that provides an easy way to get several models used in the monitoring supervision and control modules. A component is a reusable element that is composed of several views including partial models. It is formalized referring to the notion of operations and described using UML standard. Three views are delineated in this paper: monitoring view, supervision view and control view. Workshop models are built from these three views. The computation and the interactions of these models enable to get a relevant reaction for the reconfiguration process. Works concerning the detection, identification of down operations, the decision of a new configuration and the updating of control are presented.