机构地区: 北京大学地球与空间科学学院遥感与地理信息系统研究所
出 处: 《地理信息世界》 2003年第1期23-29,共7页
摘 要: 从分析GIS应用和技术发展的角度 ,分析得出COGIS的概念。本文给出了COGIS的分层体系结构 ,从基本组成元素、群体协作模式、协作控制机制、同步机制、安全控制及GIS组通讯规范等方面详尽分析了COGIS的第二层协同工作支撑平台 ,从分布的多源异构地理信息知识共享平台、多源异构地理数据的融合及可视化、虚拟现实场景协同建模、虚拟场景过程动态模拟、基于地理知识的专家会商、虚拟辅助决策等六方面分析了COGIS应用中的问题。最后 ,文章简单分析了COGIS的应用模式 。 Based on the analysis of the development of GIS application and technology, this paper brought forward the concept of COGIS, namely Cooperative GIS. Further, this paper gave the hierarchical architecture of COGIS, and analyzed the cooperative platform from cooperation control mechanism, security and group communication etc. With that, the problems about GIS application such as distributed multi-source GIS information and knowledge sharing platform, fusion and visualization of GIS information, virtual reality modeling and dynamic simulation, expert system and decision making based on GIS knowledge and so on. Finally, this paper analyzed COGIS application mode in brief.