Study Of Extended Petri Nets Application System

Extended Petri Nets are brought out on the basis of Petri Net theory. Some certain elements are introduced into Petri Net to solve certain field's problems. This paper introduces several extended Petri Nets' theory and applications.Deveolpment of modeling, simulation and analysis tool for Petri Nets has drawn more and more attention. The paper analyses Petri Nets models using object-oriented ideas and develops application systems for extended Petri Nets. The simulation algorithms are designed and vertified by several examples.There are a lot of control problems in computer net such as flow control, congestion control and error control. It is difficult to design and evaluate strategies of net control. Stochastic Petri Net is a kind of system evaluation method. The paper analyses a digital swither overload control strategy using a GSPN model.Interpreted Petri Net is a kind of non-autonomous Petri net. It can be used to model systems that are linked with outer variables. The paper designs a upper-tier controller of hybrid system using Signal Interpreted Petri Net.This paper indicates that Petri Net theory is a powerful modeling tool and can be used in many fields. It is significative to develop Petri Nets application system that can promote Petri Net theory.