节点文献
GRID GIS关键技术研究
【作者】 任建武;
【作者基本信息】 南京师范大学 , 地图学与地理信息系统, 2003, 博士
【摘要】 随着第三次互联网浪潮的到来,“即取即用”的网络应用模式成为资源共享的发展趋势。网格不是因特网的一种新名词,它并不是要抛弃和完全取代因特网。它将建筑在因特网的基础之上,不过比当前的因特网性能更高、功能更强、应用更广。 GRID GIS是在网格技术体系支持下,构建空间信息网格计算环境和空间信息服务体系的技术系统。GRID GIS为空间信息用户对空间数据进行信息获取、共享、访问、分析和处理提供技术支持,为空间信息应用提供一个强大的空间数据管理和信息处理的基础设施,确保任何空间信息请求事件(any event)、在任何时候(anytime)、在任何地点(anywhere)、任何有权限的用户(anyone)之间信息的共享,即实现所谓的4A目标。 本文剖析了网格体系结构,结合国际标准化组织关于GRID GIS及相关的规范的研究,分析了GRID GIS服务组成结构和其空间信息服务类型;在中间件技术的架构下,提出GRID GIS软件总线架构,并分析了GRID GIS组件可能采用的分布式计算技术和组件GIS技术;通过不同分布式计算环境下面向应用的GRID GIS集成关键技术的研究,提出适合于分布式信息集成平台的GRID GIS软件架构;基于分布式GRID GIS组件互操作技术的研究,结合多层体系结构下GIS和模型集成技术的研究,提出并设计网格环境下GIS和模型集成的方案。 通过系统研究GRID GIS服务系统协议结构和深入比较GRID GIS服务系统功能组件的开发技术,探索提出基于网格服务新的GIS和模型分布式集成解决方案。
【Abstract】 With the third tide of the Internet, application based on GRID technology has become a tendency of resource share domain. GRID is not a new word for Internet, neither is it mean to abandon or replace Internet. It is based on the Internet with higher quality and stronger function and wider user.GRID GIS is a technology system which can be used to construct computation environment of space information grid and space information service system. GRID GIS provides technology support the user to obtain, share, access and analyze the space data and provides a basic equipment for strong space data management and information process.The article exposes the GRID GIS structure, with the study of criterion of international open GIS consortium and other standardized organization, analyze the structure of GRID GIS and the category of space information services; under the system framework of middleware, the article put forward the GRID GIS software framework, and analyzes the technology of distributed computation and component GIS; according to the key study of GRID GIS integration in different distributed computation environment, the article advances GRID GIS software system structure that suitable to the distributed information integration platform; based on the study of interoperation of distributed GRID GIS component and the integration technology of GIS and model in multiple tier computation framework , the article puts forward and designs the integration method of GIS and model in GRID environment.The article profoundly studies the protocol of GRID GIS services and compares the development technology of GRID GIS services system function component, in addition, it proposes a new integration method of GIS and model based on GRID service framework.
【Key words】 GRID GIS; Middleware component; Distributed computation; GML; ArcXML; Model Integration; Web Services; SOAP;
- 【网络出版投稿人】 南京师范大学 【网络出版年期】2003年 02期
- 【分类号】P208
- 【被引频次】5
- 【下载频次】1031