【作者】 陈明杰；

【导师】 李殿璞；

【作者基本信息】 哈尔滨工程大学 ， 控制理论与控制工程， 2002， 硕士

【摘要】 本文研究和设计的车载定位导航系统利用全球定位系统(Global Positioning System)实现了对车体所在位置进行自主地理定位的功能。同时与地理信息系统(Geography Information System)相结合，配合城市电子地图及主要交通公路电子地图，实时地为司机提供行车导航信息。 本文基于GPS的定位原理，针对其技术特点，结合车载导航系统的工程实际，提出和设计了一套软件和硬件实施方案，成功地接收了GPS的定位数据。并运用了GIS和电子地图的相关知识，提出了一种利用MapInfo应用软件实现矢量电子地图的方法。同时，为将定位数据实时地传送并显示在车载定位导航电子地图中，本文实现了GPS和GIS两系统的集成。 为降低整体成本，本文设计的车载定位导航系统采用了单个GPS接收机来实时测量汽车的位置，致使定位精度不高。为提高定位精度，取得较好的导航效果，本文通过对GPS信号与电子地图进行匹配，提高了系统的实时性、可靠性及精度。 为完善系统的功能，在集成环境下，本文针对错综复杂的公路道路网，采用了Dijkstra算法进行最短路径寻优，快速生成通往目的地的最短行车路线，为行车提供了方便。更多还原

【Abstract】 Vehicle Location and Navigation System discussed and designed in this paper makes use of Global Positioning System (GPS) for automatic vehicle positioning. Moreover, the system combines with Geography Information System (GIS), including electronic map of main roads networks, can provide navigation information for drivers in real-time.In this paper, a set of software and hardware project is designed to receive the positioning data from GPS successfully, based on the positioning principle of GPS, the characteristics of technology and the project practice. And combined with some knowledge about GIS, a way to implement vector electronic map by MapInfo is put forward. Furthermore, the integration of GPS and GIS is finished in order to transmit and display in real-time the vehicle positioning data in the electronic map.To reduce of the total cost, Vehicle Location and Navigation System designed in this paper chooses a single GPS receiver to position , as a result, the positioning precision of the system is affected. To improve the precision of positioning, a definite algorithm is designed and used to make the signals of GPS and electronic map match, which has greatly improved the qualities of real-time, reliability and precision.In order to make the system perfect, Dijkstra algorithm is adopted in this paper to search the shortest paths for roads networks in the Integrated Mapping Environment, so that the shortest paths towards the destination is created quickly and provide convenience for the drivers.更多还原