Research On Reliability Evaluation Index System Of High-Speed Railway Dispatch Command System

In recent years, the high-speed railway is developing rapidly in our country, It will form a large-scale, high-density high-speed rail network soon later. The train operation safety is widely concerned for a long time, as the central system of the high-speed railway, the high-speed railway dispatch command system’s reliability research is particularly important. Research on reliability evaluation index system of high-speed railway dispatch command system is an important part of the high-speed railway dispatch command system’s reliability, and also is an important basis and calculated data source. This article is to do basic research on reliability evaluation index system of high-speed railway dispatch command system.The high-speed railway dispatch command system is a complicated man-machine-environment-decision-information system, therefore, this article analyzed from the influence factors of the high-speed railway dispatch command system’s reliability, delimit the research scope, the system boundary and the system components. Then put the traditional evaluation index screening method to combinatorial optimization, enable it to complete scientific selection of the evaluation index, and select evaluation index on the basis of the function of the system structure, the dispatch command decision-making process and the information process. This article mainly has carried on the classification of evaluation index, evaluation index can be divided into quantitative evaluation and qualitative evaluation index, and it gives the definition and description of the evaluation index. In addition, this article also did the analysis of the relationship between the evaluation index, defines the index units and the index set. On the basis of these two concepts, the relationship between the evaluation indexes are divided into direct and indirect relations, and then focus on the coupling relationship in the indicators indirect relationship. This paper combines the investigation method, the goal decomposition method and the multivariate statistics method, Formed a more systematic and more scientific method. According to this method to establish the organizational structure reliability evaluation index system, the decision makers reliability evaluation index system, the hardware and software reliability evaluation index system, the decision-making information reliability evaluation index system of the high-speed railway dispatch command system.Paper finally established the evaluation index system of the high-speed railway dispatch command system reliability, The evaluation index system has comprehensive evaluation index and strict index hierarchy, laid a theoretical foundation for the high-speed railway dispatch command system reliability evaluation.