GPS定位

由于定位最少需要3个卫星，该程序开机就自动搜索上空位置的卫星信号，自动获取当前所在位置的经纬度、时间、海拔高度和移动速度-GPS positioning

With positioning requires at least three satellites, the program will automatically boot search over the location of the satellite signals, automatically gets the current location of the latitude and longitude, time, altitude, and speed