In recent years,the problems of vehicle safety and management are increasingly prominent.On the basis of analysis on the disadvantage of two-dimensional electronic map,a remote positioning and monitoring system is developed which integrates GPS,Google Earth and 3 G technology.Serial communication between GPS receiver and on-board computer is realized in the Visual C + + environment,and then the GPS data are transferred to the remote monitoring center through 3G network.The location of the mobile vehicle will be traced through Google Earth after secondary development of the GPS data.The experiments prove that by comparing with two-dimensional electronic map,Google Earth can more accurately realize dynamic,real-time,real positioning display.%针对近年来日益凸显的车辆安全和管理问题,在分析传统的二维电子地图不足的基础上,运用GPS技术、Google Earth与3G技术相结合,开发了远程定位监测系统.在Visual C++环境下编程实现了GPS接收机与车载计算机之间的串口通信,通过3G网络将GPS数据传输到远程监测中心,在监测中心将GPS数据提取后利用Google Earth二次开发对移动车辆进行定位跟踪.实验表明,相对传统的二维电子地图,利用Google Earth可以更精确地实现动态、实时、实景定位显示.
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