GPS

代码说明：

  GPS定位数据解析，GPS设备通过对接收到的导航电文进行分析处理，计算出设备所在的经纬度、海拔、航速、航向等空间信息，并按照规定的NMEA-0183协议将空间信息以及卫星信息进行组织，按照一定的波特率通过串口通讯（按位发送）提供给GPS设备使用者或者在GPS设备上进行显示(GPS positioning data analysis, GPS device by the received navigation message analysis and processing equipment where the calculated latitude and longitude, altitude, speed, heading and other spatial information and spatial information and satellite information is organized in accordance with the provisions of the NMEA-0183 protocol , according to the baud rate of serial communication (bits sent) to the users of GPS devices or GPS devices on display)