Research And Application Of Logistics Vehicle Monitoring System Based On WebGIS

In recent years, logistics has been developing rapidly in our country. With the developing of the society, logistics has become more and more important for most corporations. At the same time, with the rapid development of economy and gradual improvement of road infrastructure, vehicle as a convenient and speedy transport has brought enormous benefits to the logistics. Therefore, how to effectively monitor vehicles is particularly important to logistics enterprises.WebGIS becomes an important direction of the development of GIS, which extends and consummates Geographical Information System using Internet technology, its core technology is to embed the HTTP and TCP/IP standard into Geographical Information System and the client can use the local browser to achieve the functions of Geographical Information System under the Internet environment. To integrate WebGIS, GPS and GSM technologies can solve the problems of vehicle monitoring.The thesis mainly researches the application of WebGIS in vehicle monitoring system. Firstly it studies WebGIS, GPS and GSM technologies which are associated with vehicle monitoring system, and also analyzes the advantages and disadvantages of various developing technologies of WebGIS, in the meantime it, discusses the technical characteristics of the development platform MapXtreme 2005.Secondly, it gives the solution of vehicle monitoring system with the business needs of logistics companies, including the design of functions, network structure, architecture and database. Ajax is introduced in architecture design, then it builds an asynchronous data transmission WebGIS model to achieve partial refresh and to improve the efficiency of system. At the same time, in the database design, it achieves the association of business data and vehicle GPS data through the analyzing of two kinds of data.Finally, the thesis implements the key parts of the system, including the functions of vehicle real-time monitoring, vehicle's history trace showing, vehicle's GPS information enquiring and the partial refresh functions of map centering and map zooming,. The system implements the vehicle monitoring and gets a positive effect after it was used by the company.