Research On Moving Block Technology Based On Satellite Positioning Train Control System

With the rapid development of our train control systems,the technology of moving block has become one of the development characteristics of Chinese next generation train control system.Moving block technology has been applied in the urban rail transit in China.However,for Chinese railway lines,the application of moving block technology is still in the research stage.The satellite positioning train control system uses satellite positioning with integrate speed sensors,transponders,and other integrated positioning technologies to achieve accurate train positioning and provides technical conditions for the realization of moving block technology.Based on satellite positioning train control system,this dissertation studies the scheme,function realization and efficiency analysis of moving block,and provides some technical support for moving block technology in Chinese railway applications.First of all,based on the analysis of the status of the development of moving block technology both at home and abroad,this paper studies the overall technical solution of the satellite positioning train control system,and discusses the system's configuration,function distribution and design principles.The dissertation analyzes and researches the moving block technology scheme of the system.According to relevant functional requirements,the corresponding functional modules of RBC were designedSecondly,the tracking intervals of the fixed block and moving block were studied.By building corresponding models and setting relevant parameters,the paper modeled and simulated the tracking operation of the different conditions.Finally,the relevant concepts of colored Petri nets are used to model the RBC related logic functions.And the paper uses the model verification tool that comes with CPN Tools to verify and analyze the model to ensure that the model function meets the relevant design requirements.