基于云端一体化技术体系的云GIS系统研究

Research of Cloud GIS System Based on Cloud-terminal Integration Technology

GIS系统因其与生俱来的空间属性,正面临着数据密集、计算密集、高并发、海量时空数据运算等挑战.云计算具有资源池化、弹性伸缩、按需使用等优势,可实现更高性能、更高并发的应用,从而协助解决GIS面临的问题.本文提出了基于云端一体化技术体系的GIS系统架构,包括集约化的GIS云、多样化的GIS端,以及云端互联的GIS系统三个部分.集约化的GIS云平台集成了高性能跨平台、智能集群、并行切图、并行空间分析等技术,可集约利用云计算资源,并提供高效的GIS服务.多样化的GIS端集成桌面、Web移动端技术,可构建跨多端设备的GIS应用.云端互联的一体化系统通过云端一体化、云端协同技术,实现云端之间高效互联、协同工作的GIS应用模式.云端一体化GIS系统致力于让GIS充分利用云计算的优势,应对大数据时代的数据密级、计算密集等挑战.

Geographic Information System ( GIS) is now facing the challenges of data intensive, computing intensive, concurrent ac-cess intensive, and spatiotemporal analyzing intensive. Cloud computing provides potential solutions for constructing high performance and high concurrency GIS due to its characteristics of resource pooling, on-demand self-service, and rapid elasticity. In this paper, we presented the framework of a new GIS system based on the Cloud-terminal Integration Technology, which consists of the intensive GIS cloud platforms, the diversified GIS terminals, and the integration of GIS cloud platforms and GIS terminals. The intensive GIS cloud platforms make full use of the cloud computing resources and provide high available GIS services based on technology of cross-platform, intelligent cluster, distributed parallel tiling, parallel spatial analysis. The diversified GIS terminals integrate technology of desktop GIS, web GIS, and mobile GIS to support construction of GIS applications across multi terminal devices. The GIS cloud plat-forms and GIS terminals are integrated through technology of cloud-terminal interconnection and cooperation, realizing efficient inter-connection and collaboration between clouds and terminals. The Cloud-terminal Integration GIS benefits from cloud computing to re-sponse to the challenge of data and computing intensive in the Big Data Era.