Design And Implementation Of The Movement Authority In Urban Railway Transit

With the improvement of urbanization process in China, there is a greater need for urban railway transportation. Therefore, enhancing the study of urban railway transportation brake control system is important for the improvement of train’s safety and the development of urban railway transportation. In this thesis, the key technology of moving block in urban railway transportation is studied.In the thesis, train movement generation technology of moving block is researched. Based on intelligent automatic train supervision system, function of line data management, train management and movement authority generation is researched, designed and simulated.The main function of line data management is to store, query and modify station yard line data, which is stored in directed graph structure. And the use of directed graph structure makes data query easier and improves the efficiency of data modification. The function of train management mainly includes train data management, train status management and train positioning. Train data management is responsible for the generation and storage of dynamic data. Train status management is to supervise status of running trains, so it can maintain and update train dynamic data. Train positioning is responsible for tracking and locating trains which are in operation. The function of movement authority generation is to find obstacles and calculate train’s movement authority. To find obstacles means searching for obstacles in train route and processing them according to their types and status. Movement authority generation is mainly responsible for calculating the end of movement authority and its speed.The thesis uses intelligent automatic train supervision system, and function of line data management, train management and movement authority generation are added to it. Then the three functions are implemented and simulated based on automatic train supervision system. The simulation platform can calculate movement authority for trains in different operation condition accurately and display it on Man Machine Interface.