Hybrid Dynamic Petri Net Theories And Their Application In CIMS Of Hybrid Enterprise

Discrete Event Dynamic System(DEDS) is a new branch and a forward direction of system and control theory.CIMS is a kind of model of factories in information ages.CIMS needs DEDS theory to describe , analyze , control and Optimize the system.CIMS also supplies the research of DEDS theory with real application ground.Petri Net is an important branch of DEDS theory.There are many advantages and recently there has been considerable interest in using Petri Net to research the problems of DEDS,specifically in the modeling and analyzing of CIMS.Having a instructive graphical representation and a solid mathematical foundation, Petri nets are very powerful tools for modeling , analyzing andsynthesizing the asynchronous and Concurrent systems.But the model of Petri net is complex in structure and its reachability tree's states space explodes when it describes a complex system. It is difficult to carry out the performance analysis and synthesis.From beginning to the end in this paper,the Time Petri Net(TPN) based on, we have researched the theory of Hybrid Dynamic Petri Net and its methods on modeling and analyzing in CIMS.The contents and the main results are as follows:1.We present a new kind of improved model of TPN —Changeable Parameter Time Petri Net(CPTPN),give its definition , functions and rules,discuss the application of this improved model combining the research of all kinds of TPN and...