A Reduction Method of Timed Petri Nets for a Hierarchical Scheduling

Abstract

This paper proposes a hierarchical modelling method of timed petri nets for large scale manufacturing systems. This method is able to reduce a direct net to a transition with conserving a property of completion time. Therefore, this method enables planner to make a hierarchical decision of managing manufacturing systems, especially in large scale manufacturing systems.
This paper shows that the proposed method is capable of hierarchical modelling of systems and is useful in decision making of management of large scale manufacturing systems.