离线式移动GIS关键技术研究

Study on the Offline Mobile GIS Key Technologies

随着计算机、通讯以及互联网技术的不断发展,GIS技术与产品不断推陈出新。移动GIS就是当前发展形势下比较热门的技术之一,其中尤以离线式GIS,更是以其独有特性,备受关注。本文针对离线式移动GIS的优点及发展潜力,介绍了其基础体系结构,提出了空间数据组织原则和多个关键技术的改进算法,同时进行了实验,实验结果表明这种空间数据组织和技术改进是合理可行的,具有一定的实用价值和创新性。

With the rapidly development of computer, communication and internet, the GIS product and technology are continuously gotten rid of the stale and brought forth the fresh, which made Mobile GIS as one of pop technology. This paper defines Mobile GIS of off-line system and describes its Architecture. Then according to features of the intelligent mobile terminals, point out that the technologies in desktop GIS can not be directly used in the Mobile GIS, thus proposes improvement method for spatial database organization and several key technologies for the mobile GIS. In order to verify the reasonableness of spatial data organization and the validity of the improved algorithms, an experiment is implemented. Finally give some result of testing and show how the applied technologies influence the whole system performance.