Research And Design Of Automatic Test System Of Computer Interlocking

Computer interlocking is one of core technologies in railway signal system.With the rapid development of computer technology,fault-tolerant technique and reliability technology,computer interlocking has become main equipment in station interlocking system.Computer interlocking has a number of advantages,such as high processing speed,powerful functions,high reliability and security.Interlocking software is the most important part of computer interlocking system,its safety and reliability has a fatal impact on the safety and reliability of whole computer interlocking system.As a result,it is necessary to test interlocking software comprehensively.Manual testing method has many repetitive operations in the process of test,so it results in inefficient test.Moreover,unavoidable mistakes in repetitive operations leads to unsure reliability of the results.In order to meet the demand of continuous development of computer interlocking,this thesis researches and designs the automatic test platform of computer interlocking.The platform has two parts,test case generation system and automatic test system of interlocking,the thesis mainly researches the latter.Automatic test system can achieve automatic transformation from static test cases to dynamic executions,analyze,execute cases and judge results automatically.The whole process does not need any manual intervention so manual operation mistakes are forbidden and test efficiency is improved.C++ language,MFC framework and Visual Studio 2010 platform are used to build the system.In this thesis,the system tests SWJTU-Ⅱ computer interlocking based on a simulate station.Railway signal system,computer interlocking system and current situation of computer interlocking test are firstly introduced in this thesis.Then theory and structure of automatic test platform of computer interlocking are introduced,including interlocking route control flow,demand analysis,structure and process analysis of test platform,which set the solid foundation of system research.Then the thesis analyzes data of test system,including station elements analysis,interlocking table analysis,test cases analysis and communication analysis.Analysis of test system modules,data storage format and process flow of test system modules are introduced afterwards.Finally the thesis introduces development environment and process of the test system and demonstrates functions of the test system.