基于北斗/GPS和GPRS的车载定位终端的研究与实现  

Research and Implementation for Vehicle Tracking Terminal System Based on BD/GPS and GPRS

作　　者：赵亮 刘皓[2] 王伟强[3] 汪传建[3] 

机构地区：[1]兵团常设技术市场办公室,乌鲁木齐830000 [2]石河子大学图书馆,石河子832003 [3]石河子大学信息科学与技术学院,石河子832003

出　　处：《石河子大学学报（自然科学版）》2015年第3期391-396,共6页Journal of Shihezi University(Natural Science)

基　　金：石河子大学重大科技攻关项目(GXJS2013-ZDGG03-02)

摘　　要：为了实现对我国车辆更加有效的实时监控,本文设计了一种基于北斗/GPS和GPRS的车载定位终端,该终端由STC12C5A60S2单片机系统、无线数据通信模块、北斗/GPS卫星定位模块和温度传感器模块组成,利用北斗/GPS定位模块采集车辆位置信息,通过无线数据通信模块将采集到的数据传输到公网IP服务器上,并在终端显示器上显示当前系统工作状态及系统位置信息,以实现车辆位置信息的采集。仿真实验结果表明:该终端了实现车辆实时监控、温度监测和短信服务的功能;采用北斗/GPS联合定位模块,具有定位精度高,定位性能稳定的特点。同时,该终端首次冷启动定位时间35 s,热启动1 s,重捕获小于1 s,定位三维精度(RMS)3 m,速度精度0.1 m/s,这5项指标优于他人的研究成果,本研究达到了预期效果。该车载定位终端在车辆实时监控领域具有一定的应用潜力。To realize the more efficient real- time monitoring system of vehicles,a vehicle tracking system based on BD/GPS and GPRS was designed.The system consists of a SCM system STC12C5A60S2,a wireless data communication module,BD/GPS satellite positioning module and a temperature sensor module.The positioning module would got the vehicle location information,through the wireless data communication module,the data collected will be transmitted to the public IP server,the information of the current working state of the system and the vehicle position information would be on the display terminal system to realize vehicle location information acquisition.The simulation results showed that the system realized the functions of the real- time monitoring vehicles,temperature data acquisition and messaging service; the terminal system had the characters of low cost,small size and low power consumption; the BD/GPS satellite positioning module had the characters of high positioning accuracy and stable positioning performance; the data communication of messaging service with GPRS had the characters of low cost and low power consumption.And the positioning time of the system hard reboot needed 35 s,warm reset needed 1 s,recapture needed less than 1 s,the positioning accuracy was 3 m,speed accuracy was 0.1 m/s.The overall performance of the system was more excellent than the same products on the market.The study achieved the expected effects.The system shows greater potential in application in the field of real- time monitoring vehicles.

关 键 词：实时监控 定位 轨迹 北斗/GPS GPRS 

分 类 号：U495[交通运输工程—交通运输规划与管理] U463.67[交通运输工程—道路与铁道工程]