Research And Implementation Of The Balise Telegram

China's railways are at the stage of rapid development, the implementation of the train control system simulation through the application of automatic control technology, database technology and network technology, wihch contributes to offer some available information for the practical application,reduce system commissioning costs,improve efficiency,and help to develop CTCS technical specifications with the actual situation of China Railway,consequently laid the theoretical foundation for the development of China's railway.CTCS-2 train control simulation system consists of the Train-Running Display subsystem,the Train Carried Equipment Simulation subsystem,the Ground Equipment Simulation system,Data Management system and Virtual Driving subsystem.Whether in TBTC or in CBTC,Balise plays an important role.China railway is developing by leaps and bounds.Not only the present lines increasing-speed transformed, but also the passenger transport special railway line and high speed railway new lines constructed all need use a lot of balise. Nowadays,balise used in China all depends on import, therefore,developing balise made in our country research and breaking through overseas technical monopoly,have vital realistic meaning and practical value.This thesis is a subsystem issue of "the CTCS-2 Train Control System Simulation"-Ground Equipment simulation.Firstly,the dissertation introduced the structure, the working principle and the application in domestic and international train control system of the balise system; Secondly,the dissertation analyzed the balise data configuration and data extraction, the structure and the generation of user message and the packet analysis algorithm; then the dissertation analyzed the FFFS (Form Fit Function Specification) coding strategy of Eurobalise.With the top-down design method, the system is divided into certain modules whose design process and implement methods are described in details.Finally, Using JiaoJi line field data,a lot of emulations have been done to validate the validity of the main system functions and achieved good results.