基于移动GIS和GPS集成的绿化调查关键技术  

A New Method Integration of Mobile GIS and GPS for Landscaping Survey

作　　者：田根[1] 童小华[1] 

机构地区：[1]同济大学测量与国土信息工程系

出　　处：《同济大学学报（自然科学版）》2007年第10期1400-1405,1429,共7页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目(40701139);辽宁工程技术大学地理空间信息技术与应用实验室基金资助项目(2005005);上海市青年科技启明星计划资助项目(05QMX1456)

摘　　要：以掌上电脑为移动设备,采用GPS(全球定位系统)、RTK(实时动态定位)技术,实现了移动GIS(地理信息系统)和GPS的集成.对移动GIS空间数据组织、GPS采集数据的GIS表达、GPS坐标转换等关键技术进行了研究,提出了一种适合于移动环境的GPS坐标转换模型,利用最小二乘法进行了坐标转换参数的求取与平差.构建了应用于绿化调查的移动GIS和GPS集成系统,利用该系统对上海某区进行了绿化信息调查试验.结果表明,所提出的GPS坐标转换模型和所实现的绿化调查系统,在移动环境下具有较好的高效性和实用性.The paper presents a new method of integrating mobile geographic information system （GIS） and global positioning system （GPS） for landscaping survey. Three key technologies are presented, including spatial data model on mobile personal digital assistant （PDA）, the representation of GPS data in GIS, and GPS coordinate transformation model in mobile GIS. What is further proposed is a new least squares-based GPS transformation model that features fast calculation speed, high adjustment accuracy and thus is suitable for mobile GIS. An application system integration of GIS and GPS for landscaping survey is therefore developed based on PDA. A field test is carried out through this system in Shanghai, and the results show that the proposed model and methods are feasible for mobile landscaping information survey and management.

关 键 词：移动地理信息系统 实时动态定位 坐标转换 全球定位系统 移动计算 

分 类 号：P208[天文地球—地图制图学与地理信息工程]