The Design And Realization Of Online Monitoring System Communication Server In Huge Railway-Maintaining Trains

As the development of our economics,the use of remote wireless monitoring system has been popularized in recent years.Because it is movable,easy to install and can be used under hard circumstances,it is used a lot in public security,transportation, finance, industry, electric power, water conservation and other domain.Huge railway-maintaining trains are mobile themselves, always work far off and in different places,so it is a good choice to choose GPRS-based remote monitoring system to monitor the working data of the trains.This thesis is based on the online monitoring system of the huge railway-maintaining trains,describes the design and implementation of the Communication Server in the system in detail.The system is composed of the Monitoring Client,the Communication Server,the Database Server,the WEB Sever and the Trains Terminal.The Terminal sends data to the Communication Server via GPRS DTU.The data is stored and transmitted to the Monitoring Client for office workers to observe and analyze.Communication Server is used to transmit the working data,to send the command from the Monitoring Client to the Trains Terminal,and to store the data.It is designed to connect 200 Trains Terminals and 50 Monitoring Clients in the same time.The thesis introduced the general design of server and the criticial technologies used in the server in detail,describes every criticial functional modules and shows flow charts and some codes.The Communication Server was developed with Visual C++ 6.0, and is based on Windows 2000.It is developed on the foundation of the MFC(Microsoft Foundation Class) framework after the thought of OOP(Object Oriented Program).In the test and use of the server,it is shown that the server is stable and reliable,responds quickly,and meets the need of the project.