分布式移动地理信息服务架构及关键技术研究

Research on framework and key techniques of distributed mobile geographic information service

阐述了分布式移动地理信息服务出现的背景、定义,提出了分布式移动地理信息服务的系统总体架构、本地/远程/固定服务器架构以及系统的逻辑架构,分别对每个架构的具体内容进行了论述.分析了适于分布式移动地理信息服务的无线定位、服务端地图缓冲、空间数据的多尺度表达以及面向移动终端的空间数据模型四种关键技术,提出了具体解决方案.实现了基于Java解决方案的分布式移动地理信息服务并给出具体实例,阐述了其应用前景.

The background and definition of distributed mobile geographic information service are described. The system framework, local and long-distance and root serve framework and logical framework are presented. Four key technologies including wireless location, map buffer, multi scale representation of spatial data and spatial data model of mobile terminal oriented are discussed. The solution based on Java and its prospects are presented.