Design Of The Station Microcomputer Interlocking Loop Simulation System

High speed railway plays an irreplaceable role in the world and has got rapid development. Railway signal is the basis of the normal operation of high speed railway, and the premise to ensure driving safely. The railway station signal control system is one of the core systems of railway signal system, and it fulfills the function that running the command and safety protection. After more than 20 years of research in China, a variety of models of the station microcomputer interlocking control system are developed by the researchers, and have been put into application. Station microcomputer interlocking system has become the mainstream and the development direction of station signal control system.The station microcomputer interlocking system is the guarantee of train operation safety at the station. The station microcomputer interlocking system collects and controls the information of outdoor signal equipment by PC shipping the instructions. This article takes the school laboratory sand table as the basis, according to the station operation requirements, builds a station microcomputer interlocking system simulation platform. The purpose is to study the microcomputer interlocking system.The main tasks of this paper include: analyze the structure and function of the station microcomputer interlocking system. Compile the interlocking table by the station signal location plan. Take ARM9 as the core processor and adopt embedded technology to design a physical simulation of station microcomputer interlocking system. Use C++ to complete the station interlocking simulation system console interface. Hardware design adopts S3C2440 of the Samsung Corp as the central processor. In the design of the S3C2440 minimum system, this paper adopts micro2440 core of Friendly-arm board as the embedded processor of the system. The software design uses embedded Linux as operating system to complete the transplantation of the operating system. Receive communication data from simulation interlocking center through the RS-422 serial port to control the display of signal controller modules and the execution of switch machine module.