一种基于Petri网的物流配送系统建模方法

摘要

In this paper, in order to lower the complexity of the modeling and analysis of the logistics distribution system, we extended the Petri nets and proposed the concept of the synchronized Petri nets. Next, we built an analytic model on the basis of the concept, used it to study the overall property of the logistics distribution system and verified its effectiveness in reducing the modeling complexity.%为了降低物流配送系统建模和分析的复杂性，对Petri网进行扩展，提出同步时间Petri网的概念。利用该模型可以很好地刻画物流系统模型中的并行同步结构，同时得到的模型包含若干具有交互关系的子模型，可以通过各个子模型来分析整个系统的性质。所提出的模型能清晰刻画物流配送系统，并有效地降低了建模的复杂性，一定程度上降低了原有的Petri网模型因规模庞大产生的状态空间爆炸问题。