Research On Automatic Test Technology Of Station Computer Interlocking Software

With the development of railway by leaps and bounds,computer interlocking technology flourished and became the main direction of the development of station interlocking system.Computer interlocking system is a real-time security control and protection system,interlocking software as a key link in the software,a direct impact on the entire system security and reliability.In order to ensure the normal operation of railway transport,any set of interlocking software in the practical application of the test before it is essential.And the traditional manual test method has long been unable to adapt to the level of development of interlocking technology.Therefore,the need to explore the computer interlocking software automatic test technology.These based on this research,through the station discrete event system modeling,simulation of the actual site of the various operating conditions,so the interlocking software for performance testing,and ultimately for the actual station.Firstly,the status quo of computer interlocking system and interlocking software testing technology is studied,and the structure of interlocking software automatic test system is designed.This paper analyzes the running characteristics of station signal equipment,and uses Petri net tool to model it.At the same time,we design class and function,and then design an interlocking software simulation test system,and use simulation technology to test the computer interlocking software automatically.Secondly,in order to improve the test efficiency,reduce the test cost,effectively avoid the lack of manual test,make the test more fully,the test case more comprehensive,mainly on the test case of the automatic generation of in-depth study,especially in the case of automatic generation algorithm,An automatic generation method of test cases based on genetic algorithm is studied.Thirdly,we study a dynamic decision method based on rule test results.At the same time,we design the interlocking function rule base,describe the interlocking rule condition action syntax and automatic judgment algorithm,and through the test results,prove the interlock function test results The judgment method is correct,and the judgment method is suitable for judging the test result of interlocking software.Finally,the successful application of the standard station interlocking software testing,completed the six main interlocking function of the test,to further ensure and improve the test software interlocking function.The research content has certain theoretical and practical value to the computer interlocking software.