A set of portable track recorder with Google Earth representation system is designed based on MSP430F148 as the control core and E580 as the receiving module of GPS.The paper expounds hardware circuit and software of the platform.The hardware platform receives GPS information by UART of MCU,displays the real-time longitude and latitude through LCD,which will be stored in flash memory at the same time.All the stored information of longitude and latitude are sent to PC by USB interface.The PC software will convert the information to regular KML format file.Therefore,once the KML file is recognized by Google Earth software,the track of the target will be displayed on screen.The system has features of lower power consumption and simple operation,and can be very easily applied to logistics tracking,query of bus information and other projects.%以MSP430F148单片机为控制核心,E580为GPS接收模块,设计了一套能在Google Earth中显示目标移动轨迹的平台,阐述了平台的硬件电路及其软件流程.该硬件平台通过串口接收GPS信息,实时显示在LCD上并存储在Flash存储器中.通过USB接口把存储器的坐标信息上传给PC,然后转化为KML格式文件,Google Earth识别该文件即可显示目标的轨迹.该平台功耗低,操作简单,可以非常灵活地应用到物流跟踪、公交查询等工程项目中.
展开▼
