基于PDA的高精度移动定位软件的设计与实现  

Design and Implementation of High Accuracy Mobile Location Software Based on PDA

作　　者：郭永锋[1] 姚连璧[2] 

机构地区：[1]同济大学测量与国土信息工程系,上海200092 [2]现代工程测量国家测绘局重点实验室,上海200092

出　　处：《地矿测绘》2008年第2期18-20,共3页Surveying and Mapping of Geology and Mineral Resources

摘　　要：讨论了VRS技术、串口通信、WinInet API HTTP通信、相似变换等关键技术问题,并以Visual Studio2005以及Windows Mo-bile 5.0 SDK为平台,开发了PDA定位软件,利用该软件求得坐标转换参数后,即可实时显示流动站坐标,实现本地坐标系统下的RTK定位以及成果保存等功能。试验分析结果表明,该系统达到了厘米级精度,且具有一定的应用价值。This paper developed a PDA positioning software using Visual Studio 2005 and Windows Mobile 5.0 SDK platform, after have discussed key technical issues of the VRS technology, serial communications, Winlnet API HTTP communications and similarity transform. After coordinate transformation parameters are obtained, coordinate of rover can be displayed real-time. The system realized RTK positioning and result preservation in the local coordinate system. Analysis of test results shows that the system reaches a centimetre-level accuracy and has the practical application of a certain value.

关 键 词：VRS 串口通信 WININET API PDA GPS RTK 

分 类 号：P228.4[天文地球—大地测量学与测量工程] P209[天文地球—测绘科学与技术]