Research And Development Monitoring Software Of Vehicle Monitoring And Dispatching System

As the rapid economy progress of our country, the transmission jam of existing roads is becoming more and more serious, especially in the large cities, such as Beijing, Tianjin, etc. The vehicle monitoring and dispatching system can optimize the vehicle dispatch on the basis of existing roads, improve the use rate of roads, the transmission environment and the rate of communication field in the society and improve the economic efficiency of society. In current, the vehicle monitoring and dispatching system based on GPS/GIS/GPRS is the one of main contents of ITS research.Firstly, this paper introduces the application and progress situation of GPS vehicle monitoring and navigation system at home and on abroad. It analyzes the whole scheme of vehicle monitoring and dispatching system based on GPS/GIS/GPRS and illustrates its function and theory of work. The system is make up of vehicle terminal, communication net, central server, monitor center, It is the function of vehicle terminal that getting signal of GPS and calculating coordinate, and vehicle terminal sends the results to central sever by GPRS ,The monitor center monitors and dispatches vehicle by central server.Secondly, this paper gives introduction of the key technology needed by the vehicle monitoring and dispatching systems, which mainly includes GPS, GIS, GPRS, etc. In addition, it gives analysis and research of communication building for vehicle terminal and central service. It uses 2 core controls of SuperMap Objects by comparing with other related products. Thirdly, it analyzes the related entity of vehicle monitoring and dispatching system, the entities are vehicle information, owner information, diver information, unit information,linkman document, mobile aim information,etc. Proposes a conception model cored by vehicle entity and builds up central data base, it forms a system administer flat. The flat realizes inputting and deleting; realizes querying related information and history documents. Fourthly, this paper researches and develops the monitoring and dispatching function for systems. It develops the GIS function based on the SuperMap Objects, realizes the operation of electronic map and monitor of various methods, such as: monitoring single aim, monitoring multi-aims, monitoring group aims, etc. realizes selecting optimized roads and analysis roads in various methods which are shortest path analysis, best path analysis, setting route in advance, etc. realizes dispatching vehicle terminal by sending short message to vehicle terminal.Finally, it gives conclusion of the research results of this paper and anticipates the prospect of vehicle monitor and dispatching systems based on GPS/GIS/GPRS.