摘要
随着移动通信技术的发展,基于位置的服务(LBS)越来越受到重视。然而传统的位置管理、空间位置信息服务系统(GIS)均是基于大型机/桌面机、宽带宽的应用环境;另一方面,在移动应用领域中的资源受限性使得传统的GIS构建方法并不适应于移动环境。文中旨在使移动用户能够在受限的移动应用环境中能和桌面用户一样使用城市空间信息服务。主要论述了在服务器端所要做的工作,并从多源数据的集成、空间数据的压缩方法及服务平台的框架结构等三个方面进行了论述。提出了基于WebServices的数据集成、基于小波的矢量地图压缩和JPEG2000的珊格地图压缩方法,并给出具体框架体系例子。文中所涉及到的框架体系原型在实际环境下运行良好,达到了预期的目的。
With the development of mobile communication, the location based service （LBS） become more and more important. However the traditional location managing or spatial geography information system （GIS） are totally based on the mainframe/PC and wide bandwidth network environment. On the other hand, the limit of the mobile environment is a big obstacle for the traditional GIS. This paper＇s goal is that let mobile user use the city geography information as simaple as the traditional user. And it discussed and proposed some approaches from the three aspects of integrating multi - source data,spatial information compression and the framework of the platform. The prototype of the plat＇form works well and reached requirements.
出处
《微机发展》
2005年第8期128-131,共4页
Microcomputer Development
基金
国家"八六三"计划资助项目(2002AA134020-04)
