Supervisor system for detection and treatment of failures in manufacturing systems using distributed Petri nets

摘要

This paper presents a framework for a supervisor in manufacturing systems operations. The supervisor not only considers normal process in the manufacturing system but also detection and treatment of failures. The framework is based on the formalism of Petri nets (PN). In particular, an extension of PN, Distributed Petri Net (DPN), is introduced, which permit to develop the supervisor framework. A case study of detection and treatment of failure in machining operations will be considered, in which, the normal process, the detection and treatment of failures in a manufacturing system are integrated through modules based on DPN.