| 基于GPS与GIS集成的车辆导航系统设计与实现 |
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| 引用本文： | 李德仁,郭丙轩,王密,雷霆.基于GPS与GIS集成的车辆导航系统设计与实现[J].武汉大学学报(信息科学版),2000,25(3):208-211. |
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| 作者姓名： | 李德仁 郭丙轩 王密 雷霆 |
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| 作者单位： | 1. 武汉测绘科技大学校长办公室,武汉市珞喻路129号,430079
2. 武汉测绘科技大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号,430079 |
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| 基金项目： | 国家自然科学基金重点资助项目!编号 4963 10 5 0 |
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| 摘 要： | 介绍了基于GPS与GIS集成的车辆导航系统设计与实现 ,探讨了导航系统中电子地图的空间数据组织 ,提出了GPS信号与GIS路网数据匹配、快速的邮路选择、最佳路径选择、地图随驾驶方向快速实时旋转技术及语音提示、语音识别技术的使用。
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| 关 键 词： | 3S集成 车辆导航 信息融合 匹配 最佳路径 邮路问题 语音识别 快速显示 |
Vehicle Navigation System Design and Implementation Based on Integration of GPS and GIS |
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| LI Deren,GUO Bingxuan,WANG Mi,LEI Ting.Vehicle Navigation System Design and Implementation Based on Integration of GPS and GIS[J].Geomatics and Information Science of Wuhan University,2000,25(3):208-211. |
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| Authors: | LI Deren GUO Bingxuan WANG Mi LEI Ting |
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| Abstract: | This article discusses the design and implementation of a vehicle navigation system (VNS),which is based on the joint technology of GPS and GIS.After a general systematic analysis of VNS,this article discusses the following issues:(1)The outline design of VNS including its hardware,software and system architecture.(2) The real_time procedure of GPS signals and other ones,which involves signal receiving,data communication,coordinate transformation,as well as the processing of electric compass signals.(3) The data organization issues.Both spatial and attribute data of roads network are organized into an integer model.Point features are also organized in the same way.In order to make effective spatial index and topological relationship,some relevant technologies has been developed.Optimized data organization and multithread programming technology has made possible the fast rotation and movement of the map in response of GPS signals.Based on road topology,we develope a fast algorithm to search best route.(4)The matching of GPS signal with map data.Normally,GPS coordinate error is around 100 m,which includes system error.We use GIS data to correct the systematic error and to fit the GPS coordinate into the map.In case GPS signal is lost,we employ some algorithms to estimate the position of the vehicle,with the aid of other devices like electric compass.(5) The design and implementation of our VNS interface.The VNS interface is mainly composed of three views:global view that presents the map in a normal mode and highlights the planned and passed route,a driver's view that rotates to keep the forward direction northward;and a prompt window that shows user guidance information.(6)The audio control part,which can fulfill the need for man_machine interaction better than traditional ways of keyboard plus mouse. |
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| Keywords: | integration of 3S vehicle navigation information fusion matching optimal route post road issue audio recognition quick display |
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