基于混合变量空间的轨道交通动态系统安全分析

Safety Analysis of Rail Traffic Dynamic System based on Mixed Variable Space

在分析轨道交通动态系统安全相关要素的基础上,提出轨道交通动态系统是一类受时间、空间和事件多重驱动的混杂系统。在包含连续变量和离散变量的多维混合空间内,将轨道交通动态系统安全问题划分为多个动态子区间,进而实现对每一个动态子区间分别进行建模,然后依据各动态子区间的相互关联关系,聚合而得到系统整体模型的方法。分析了动态子区间的区间重叠外部特性和区间漂移内部特性。

Based on an analysis of the safety elements in rail traffic dynamic system(RTDS),which is a kind of hybrid system driven by time,space and events,this paper finds that in the mixed variable space,the safety of RTDS might be divided into several dynamic sub-regions. Every dynamic sub-region will establish its own model,then a whole model can be set up based on the mutual ralations between sub-region models.Region overlapping is the exterior character of the sub-region,while region floating is the inner chara...