应用Stateflow技术的安全性建模与仿真

摘要

为了保障高风险系统的使用安全性,探索事故的运动规律与应急决策,提出了面向事故过程的安全性仿真方法,并结合有限状态机原理与Stateflow技术设计了建模方法与仿真机制,该方法能实现混合系统过程状态逻辑与连续机理的建模与仿真,仿真结果能反映事故发展过程中系统的状态-时间特性、人机交互特性以及过程机理,为应急决策提供定量的依据.最后,对某产品实例的事故过程进行了模型设计与仿真实验,验证了该仿真方法的有效性与合理性.%The accident-process oriented safety simulation method was proposed to ensure the safety of high risk systems,as well as explore the movement during the accident evolution and emergency treatment.The modeling and simulation method was designed upon the principle of finite state machine and the technology of Stateflow.By this method,the modeling and simulation of process logic and continues mechanism in hybrid system can be achieved.Then the simulation result can reflect the system characteristic of state transforming and man-machine communicating,and the mechanism in the accident process,accordingly,the quantitative support can be provided for the emergency treatment decision-making.Finally,the model design and simulation experiment for the typical accident process in some product were implemented,and the validity and rationality of this proposed method were validated by the result.