摘要
物联网以及信息物理融合系统对形式化建模提出了新的挑战,引入了实时系统规范语言STeC,为刻画实时系统的时空一致性提供了规范语言。针对STeC语言建立STeC至Stateflow自动转换系统,提出一种基于STeC至Stateflow转换的仿真及验证方法,该方法使用STeC语言对实时系统进行形式化建模,再建立实时监控的Simulink仿真模型,并使用Checkmate对系统进行安全性验证。通过对京沪高铁运行的实例研究,表明该方法对高铁运行系统实时仿真的有效性,并能够验证高铁运行系统的安全性。
Internet of Things or cyber-physical systems provide a new challenge for formal modeling methods related to the as- pect of physical elements such as location and time. Recently, this paper introduced a specification language called STeC to stress the spatio-temporal consistency for real-time systems. The operational and denotational semantics of and tool set related to this language have been given. The aim of this paper was to establish a STeC to Stateflow automatic transformation system and to propose a simulation and verification approach based on this transformation system. It firstly gave a formal model for an object system in STeC language, and then set up a real-time monitoring simulation model using Simulink. After that, it presen- ted a verification approach for the system safety property based on Checkmate. Finally, it gave a case about Jinghu Gaotie （high speed train） running timetable to show that the proposed approach is effect and usable.
出处
《计算机应用研究》
CSCD
北大核心
2014年第2期448-453,共6页
Application Research of Computers
基金
国家"973"计划基金资助项目(2011CB302802)
国家自然科学基金资助项目(61202104)
上海高校知识创新工程(085)建设项目
