铁路智能运输系统结构设计方法

铁路智能运输系统(RITS)结构设计的实质就是确定RITS由逻辑框架到物理框架的映射关系。RITS是由若干要素组成的,选择RITS结构设计的要素,其中具有逻辑属性的要素是功能,具有物理属性的要素是子系统。收集来自体系框架中专家的知识经验,确定子系统和功能的对应关系。建立功能要素集合与子系统要素集合之间的关联矩阵、关联强度矩阵及其可达矩阵,从而确定系统的结构。RITS结构设计实例选取11个子系统和21个功能域作为设计要素,通过RITS结构设计方法以及模糊聚类方法对物理子系统进行重新划分,得到合理的物理子系统划分结果。

Method for the Structure Design of Railway Intelligent Transportation System

The essential of Railway Intelligent Transportation System(RITS) is to fix on the mapping relationship between logical architecture and physical architecture.RITS is made up of some elements,and the elements of RITS structure design are chosen.The elements with logical attribute are the functions.The elements with physical attribute are the sub-systems.The experts' knowledge experiences are collected from system architecture and the corresponding relationship between the sub-systems and the functions is fixed on.The relationship matrix,relationship intensity matrix and its reachable matrix between the function set and the sub-system set are set up,therefore the system structure is established.The example of RITS structure design chooses 11 sub-systems and 21 function domains as the design elements,RITS structure design method and the fuzzy cluster method are adopted to afresh partition the physical sub-systems.Finally the rational result of physical sub-system partition is obtained.