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The Efficient Web-Based Mobile GIS Service System through Reduction of Digital Map

机译:减少数字地图的基于Web的高效移动GIS服务系统

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摘要

The existing personal mobile devices such as PDA have a severe limitation on the available memory, small size of screen and low bandwidth while controlling very large-volume Geographical Information Systems (GIS) spatial data. But if the data to be handled can be reduced by using a new adaptable GIS storage format that consists of only the required fields and can be transmitted through Web standard protocol (i.e., HTTP/SOAP), a PDA system can support the efficient mobile GIS service to extended regions. In this paper, we present a new method which reduces map data into a Simple Spatial Format (SSF) using map generation and format conversion algorithms. We also present the implementation of a Web-based GIS system in which PDA-based mobile clients and Web Services servers communicate through HTTP/SOAP protocol to provide Location-based services. The experimental results indicated that our proposed approach drastically reduced the size of map and the time of map loading service.
机译:现有的个人移动设备(例如PDA)在控制非常大量的地理信息系统(GIS)空间数据的同时,对可用内存,屏幕尺寸小和带宽低等方面有严格的限制。但是,如果可以通过使用仅由必填字段组成并且可以通过Web标准协议(即HTTP / SOAP)传输的新的适应性GIS存储格式来减少要处理的数据,则PDA系统可以支持高效的移动GIS服务于扩展区域。在本文中,我们提出了一种使用地图生成和格式转换算法将地图数据简化为简单空间格式(SSF)的新方法。我们还介绍了基于Web的GIS系统的实现,其中基于PDA的移动客户端和Web服务服务器通过HTTP / SOAP协议进行通信以提供基于位置的服务。实验结果表明,我们提出的方法极大地减少了地图的大小和地图加载服务的时间。

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