由网络到网格,由网络服务到网格服务,随着网格技术的发展和应用,出现了各个领域都根据自身的需要构建的专业性网格,地理空间信息网格受到学界和业界的关注。本文针对地理空间信息领域长期存在的问题,提出了基于网格的广义地理空间信息服务的理念,从基于网格的地理空间信息获取、处理、应用的一体化等几个方面论述了需要解决的主要问题,分析了基于网格的广义地理空间信息服务节点动态管理、地理空间信息服务分类与注册、地理空间信息服务工作流与服务链构建、地理空间信息服务发现与服务组合、地理空间信息传感器数据接入(网格)与集成、基于云计算的地理空间信息处理(生产)等六个方面的关键技术。
With the development and applications of Grid, a lot of professional grid are built according to their own needs, and geospatial information grid is concern by the academia and the industry. The grid - based generalized geospatial information services aiming at the long - term problem of the field of geospatial information is proposed in this paper. The main issues that need to be addressed From grid - based geospatial information acquisition, processing, application integration aspects is dis- cussed, and analyzed six key technology, which are grid -based dynamic management of generalized spatial information service node, geospatial information service classification and registration, geospatial information service workflow and service chain construction, the discovery of geospatial information services and service composition, access to geospatial information sensor data and integration, and Cloud Computing- based geographic spatial information processing.