【摘要】 提出一种车域网中的半GPS定位算法,在此基础上设计并实现了一种基于蓝牙(B lue-tooth)和半GPS定位算法的无线智能车辆管理系统.在深入研究蓝牙协议栈B luestack的基础上,综合应用蓝牙短距离通信、传感测量、半GPS定位、天线设计以及数据库等多种关键技术,有效地解决了传统车辆管控系统测量精度低、安全性可靠性不高、待机功耗大等难题,同时降低了天线设计难度,提高了整个系统的性能.智能车载卡通过各种传感器和GPS模块能够记录车辆行驶过程中的各种参数,回车场时能把这些数据通过蓝牙模块以无线方式传送到管理中心服务器,从而使管理中心利用这些数据分析车辆的行驶行为,结合电子地图可以回放车辆行驶路线.更多还原

【Abstract】 A kind of half GPS(global position systems) algorithm over VAN(vehicle area networks) is proposed to solve vehicle localization problem in VAN.The design and development of a wireless intelligent vehicle administrating system based on Bluetooth and GPS are presented.Based on the insight research of Bluetooth stack,some key technology are used such as Bluetooth short distance communication,sensor measurement,GPS localization,antenna design and database.Compared with the traditional vehicle administrating system,the new system has many advantages,including high measurement resolution,admirable dependability and security in link and communication as well as very lower power consumption in idle mode.A novel antenna is designed and the performance of system is improved.The intelligent vehicle card can record the parameters in the running of vehicle by sensors and GPS receiver.The card sends the data to the server of administrating center by Bluetooth modules when the vehicle returns.These data will be analyzed in the center so the behavior of vehicle for the trip and the route of vehicle will be described by means of E-map.更多还原