基于Petri网的PMS动态调度仿真

The Realization Of Dynamic Scheduling Simulation Of FMS Based On Petri-net Theory

Petri网模型是FMS动态仿真的有利工具。本文利用面向对象方法对FMS和有色赋时Petri网进行了描述 ,并根据最小下次事件时间推进原理 ,利用VisualC ++建立了动态调度仿真系统。结果表明 ,面向对象方法具有表达直观和自然 ,可扩充性 ,实现容易和简便等优点。

Petri-net theory is a useful tool for the dynamic simulation of FMS. In this paper, we describe colored timed Petri-net and FMS with object-oriented method. And according to the principle of advancing by order of the next event occuring in the least time, we build a system of dynamic scheduling simulation with the software of Visual C++. The results show that the object-oriented method has many advantages, such as intuitive and natural expression, expansibility, easyrealization, feasibity and convenience, etc.