Mobile Target Trajectory Real-time Display System Design

GPS technology has all-weather,all-round and high-precision characteristics.With the popularization and improvement of its technology,it has been integrated into various fields of national economic construction,social development.Not only in the professional fields such as geodesy and vehicle navigation,but also in the daily life,the application prospects are also very broad.The real-time display system of moving target trajectory designed in this paper has important practical significance and application value in the construction of buried cable trajectory,mountaineering adventure and prevention of community elderly and children.The main work of the thesis is as follows:1.Build a system hardware platform.Hardware platform selection is built,including embedded development board,4G module and GPS module.Embedded minimum system is made,involving cross-compilation environment construction,driver design,kernel configuration compilation and root file system production.The produced embedded minimal system is ported to the development board.2.Design a GPS data acquisition and transmission system.Write GPS data acquisition and transmission program,realize 4G dial-up Internet access,use VPN p-roxy service technology to realize data communication between two LANs.3.A mobile terminal management application is designed,including setting up the software development environment,designing the system login interface and track drawing interface and writing the corresponding response function.The AutoNavi map is called in application.The system designed in this paper shows a clear and smooth target trajectory with a refresh rate of 5 seconds and an error range of no more than 10 meters,which can meet the design requirements.