Rail transport in the country's economic development plays a decisive role in ensuring the safe operation of trains and improve transport efficiency has been the subject of rail transport， which requires high-performance train control system to support However， traditional cars to the track circuit as a way of communication has been unable to meet the modern requirements of the train control With the development of computer communications technology， the use of wireless communications transmission cars， high-capacity two-way information is rapidly train control system development， wireless occlusion Center (RBC) as a train control system for wireless communications core of the ground equipment of the railway system Run command and security plays a crucial role， research centers and car blocking wireless data transmission equipment on the train operation simulation system the process of data transmission and real-time security analysis have a significant In this paper， a VC + + 0 as a platform to the ATP analog RBC transmission packet data system design and Lee Using SQL Server 2000 database server to establish the static information and dynamic information database， to achieve RBC line of information sent to the trains， driving license， temporary speed limit of the function and ATP-side in all kinds of information will be displayed to create based on the C / S mode of communication systems to RBC as a client-side， ATP-side as a server-side， using TCP / IP network The use of transponder technology and Manchester coding technology of the information encoded message Thesis is divided into five sections， the first introduced the research background， the significance and the main contents of this paper and the structure， the second part of a systematic needs analysis， introduced the RBC， ATP functional needs analysis， the third part of the design of a database ， transponder code， and Manchester encoding message design， communication interface design， the fourth section describes the development tools， the interface functions of the specific
