基于改进OOPN的系统工作模式分析方法

摘要

针对空间有效载荷系统工作模式的复杂性问题,在研究其动态行为和运行特征的基础上给出了一种基于改进的面向对象Petri网(IOOPN,Improved Obiect Oriented Petri Net)的系统工作模式分析方法.该方法集合了Petri网和面向对象的优点;在面向对象Petri网模型中引入了对象间的行为约束关系;并根据约束关系实现了基于最小序列组的系统工作模式分析算法.最后,将该方法应用于某资源卫星有效载荷系统中,实践结果表明该方法满足对有效载荷系统工作模式的分析、仿真和验证的要求,为有效载荷系统的总体设计和集成测试提供了重要的参考.%In view of the complexity of operating modes for payload system , after study deeply on dynamic behavior and functional characteristics of the system, an improved object oriented Petri net ( 100PN) -based approach for analyzing system operating modes is proposed. This approach aggregales the strong points of object oriented technique and Petri net, introduces a constraint relation of actions among objects, and realizes the minimum sequence combination-based algorithm for analyzing system operating modes according to the relation. At last, it is applied to certain satellite project. The result indicates that the approach can meet the requirements about analysis , simulation and validation of operating modes for payload system and provide an important reference for design, integration and test of payload system.