地理空间数据生产网格的体系结构与关键技术

基于对网格计算技术和目前我国空间数据生产模式的分析,提出了地理空间数据生产网格的概念及其体系结构,并对其实现的关键技术进行了探讨。这里的体系结构是基于OGSA的五层构造:资源层、基础层、生产服务层、网格工作流层和界面层,还包括相关标准和与数据网格的连接。其关键技术包括网格计算、web服务、网格工作流、新一代空间数据模型与Open GIS规范等。最后指出,空间数据生产网格是新世纪信息化测绘的发展方向。

Architecture and key technologies of geo-spatial data productive grid

According to the analyses of grid computing and the production status of geo-spatial data of our country,this paper put forward a new concept of geo-spatial productive grid,and then discussed its architecture and key technologies.That architecture,which was build upbased on OGSA structure,was composed of five layers: resource layer,basic layer,productive services layer,grid workflow layer and the interface layer.To build those layers needs many key technologies,such as grid computing,web services,grid workflow,the new spatial model and the OpenGIS standards etc.The geo-spatial productive grid is the development trend of informationbased surveying and mapping of new century.