基于Petri网的智能制造系统建模

Petri Net Based Modeling of Intelligent Manufacturing System

阐述了 Petri网在智能制造系统建模中的突出优点 ,对其进行了扩展 ,并与面向对象技术相结合形成了面向对象 Petri网 ( OOPN)。提出了利用OOPN建立智能制造系统结构模型、行为模型、控制决策模型和消息模型的方法。通过利用 OOPN建立智能制造中加工结点模型的实例 ,充分说明了面向对象 Petri网的有效性和强大的建模能力 ,为智能制造系统的设计、性能分析、运行状态监视提供了一条有效途径和强有力的工具 ,必将在制造领域得到广泛应用和进一步的发展。

This paper emphasizes the advantages of Petri Nets used in modeling of intelligent manufacturing system (IMS), and proposes the concept of Object-Oriented Petri Nets (OOPN) combining the Object-Oriented technology. The modeling method for structure model, activity model, decision-making model and message model for IMS is also proposed by using OOPN. The modeling example of a machining node illustrates that OOPN is valid and strong for modeling IMS and provides approach and tool for the design, performance analysis and status supervision thus it will be widely applied and farther developed in the field of manufacturing system.