【摘要】 Petri网是分析系统的一种有用工具。介绍了Petri网和投入产出系统的基本概念;给出了构造投入产出系统Petri网模型的方法;讨论了投入产出系统Petri网模型的性质;基于投入产出系统Petri网模型,得到了投入产出系统可分解的充分条件和不可分解的必要条件。为使问题阐述清楚,引入了一个具体的投入产出系统例子。将Petri网理论用于投入产出系统的研究,能够直观地反映出投入产出系统结构及其动态行为,是一件十分有意义的事情。更多还原

【Abstract】 Petri net is a powerful tool for analying systems .In this paper, the basic concepts of Petri net and input & output system are introduced and the methods of constructing the Petri net model of input & output system are given, at the same time, the properties of the model are discussed. Based on the Petri net model of input & output system, the abundant condition of the resolvability and the essential condition of the unresolvability of input & output system are given. To clarify the problem, an example of a real input & output system is introduced. The study of applying Petri net to input & output system can reflect directly the structure and the behavior of input & output system which is a very meaningful thing.更多还原