摘要
针对雷达故障诊断测试系统组建的复杂性和灵活性增加,传统的人工组建系统方法不能满足需求的情况,提出了一种自上而下,由整体到部分的分层建模与验证方法。在该方法中,通过对系统的初步分析,首先利用UML建模语言为该系统画出用例图和类图,得到系统的静态模型,来确定该系统的具体组成构架。然后为该系统建立一个随机Petri网动态模型,根据模型计算出系统性能指标,并对该系统进行评价。通过这种方法可以预防系统出现死锁、饥饿和资源冲突的情况,提高设备资源利用率,节约系统设计时间和成本,方便了自动测试系统的组建。
A new top-bottom hierarchy modeling method for radar fault diagnosis system is proposed in the paper, because the complexity and flexibility of radar fault diagnosis system composition is increasing, and traditional manual composition method doesnt meet the needs of the consumers. In this method, UML （ Unified Modeling Language） is firstly used to draw out the use-case diagram and the class diagram of the system to form a static model. The static model is prepared to form the Petri net model. Then a dynamic state model of the system based on Stochastic Petri net is set up to validate and evaluate the radar fault diagnosis system, and offers much useful information for the system composition. The method prevents from the occurrence of deadlock, hunger and resource confliction, and facilitates the composition of the automatic test system.
出处
《电子测量与仪器学报》
CSCD
2007年第2期21-25,共5页
Journal of Electronic Measurement and Instrumentation
基金
国家自然科学基金(编号:90407007)
教育部博士点基金(编号:20030614006)资助项目
