Research And Simulation Of Vehicle Controller Based On Interconnected Trackmap

With the implementation of China’s "Transportation Power" strategy,during the 13 th Five Year Plan period,the scale of urban rail transit has been expanded unprecedentedly,and the total operating mileage has reached 8939 kilometers.China’s urban rail transit CBTC(Communication Based Train Control)has achieved independent research and development of key technologies,and has entered the stage of interconnection.Interconnection and interworking CBTC requires that CBTC equipment can adapt to the data design style of different signal manufacturers,and can meet the requirements of cross line operation that all trains and equipment can operate on the lines designed by different signal manufacturers under CBTC.Based on this demand,this thesis designs a set of on-board control simulation system based on interconnected electronic map.The system can realize the simulation function in single machine and online state,and can be used in indoor test simulation and interconnected CBTC on-board controller training system.The summarized and designed electronic map data format can meet the operation requirements of typical CBTC lines and has the ability to adapt to CBTC lines with different data formats,It provides a theoretical reference for the further research and popularization of electronic map of interconnection CBTC on-board controller.Firstly,this thesis expounds the current development status of domestic interconnection CBTC and its on-board electronic map.Based on the electronic map data description format designed by different signal suppliers,this thesis puts forward a design idea and scheme of electronic map unified data format to meet the demand,as well as the architecture of interconnection CBTC on-board controller to meet this demand.Then it analyzes the reference data structure given by the electronic map specification,and summarizes and designs a more general electronic map data structure scheme based on the existing data structures designed by four different manufacturers.After analyzing the requirements of interconnection and cross line operation and determining the data structure of electronic map,this thesis uses XML file,MVC system architecture,C# GDI interface and other technologies to design the simulation system.Firstly,the static data of electronic map and the dynamic data packet simulated by vehicle on board controller(VOBC)are stored by XML;Then,based on the data structure of the electronic map,the basic units such as equipment,section and train position in the electronic map are described one by one based on the directed graph model,so that all basic trackside equipment and track sections of CBTC can find the unique position in the electronic map data,and the instantiated data of each unit on the electronic map are given.Then,the route search algorithm is adopted.Firstly,the data packet between vobc and ZC through the environment simulator under the interconnection CBTC architecture is simulated.Through the analysis and processing of the simulation data packet,the train MA is continuously updated,and the graphical display of the train and its nearby sections and equipment is displayed synchronously on the electronic map visualization interface.After finding the route through route search,the process of the train running according to the updated MA is simulated.To sum up,this thesis studies and analyzes the on-board controller based on the interconnection electronic map,and simulates and visualizes under the electronic map data format designed in this thesis based on the typical functions of the on-board controller,which meets the simulation requirements of the interconnection CBTC on-board controller and its electronic map,and has certain practicability.