摘要
简述了车载组合导航系统的组成及工作原理 ,并针对车速传感器和速率陀螺信号不能直接送入数据采集卡的问题 ,为车速传感器及速率陀螺信号的采集设计了调理电路。完成了GPS接收机数据采集的串口编程 ,并分析了NMEA -0 183电文格式 ,给出了GPS信号提取程序流程图 ,并编程实现。按照本文设计 ,可获得组合导航系统导航定位所需全部数据。
A car-borne integrated navigation system is introduced. In this paper, a signal-modulated circuit for the car speed sensor (Hall sensor) and rate gyro is presented. The serial port program for GPS data collecting, the format of NMEA-0183 sentences, and the GPS information extracting flow chart are given. All the data required by the integrated car-borne navigation system can be acquired.
出处
《自动化技术与应用》
2004年第12期64-66,共3页
Techniques of Automation and Applications
关键词
GPS
车载导航
信号调理
串口编程
信息提取
GPS
Car-borne navigation
Signal modulate
Serial port programming
Information extracting
