Multi-source heterogeneous geographic information service platform based on open-type grid system

Abstract

The invention provides a multi-source heterogeneous geographic information service platform based on an open-type grid system. The multi-source heterogeneous geographic information service platform is structurally based on the structural design of the open-type grid system, regards all resources and spatial data integration tasks as application services, and comprises a resource layer, a Web service and OGSA architecture service layer and an application service layer. The resource layer provides physical and logic resources of geographic information. The Web service and OGSA architecture service layer is located on the resource layer, is used for modeling the physical and logic resources of the resource layer into grid services, and is established on the basis of a standard WebService computation specification technology. The application service layer is located on the Web service and OGSA architecture service layer and used for providing geographic information user application service interfaces, geographic information data and service registry, transaction and management functions. The multi-source heterogeneous geographic information service platform can alleviate the technical bottleneck of circulation in a data application process, promote multi-source heterogeneous geographic information data sharing and improve timeliness and efficiency of information application services.

Description

technical field [0001] The invention relates to the technical field of geographic information service management, in particular to a multi-source heterogeneous geographic information service platform based on an open grid system. Background technique [0002] Geographic information is an important distributed information resource. It has social benefits and market value. It is the basic information means to promote the sustainable, rapid and healthy development of social economy. However, the data model, data structure and processing method of geographic information are complicated. , and the processing methods are relatively independent and the resulting differences in types greatly restrict the application and sharing of geographic information. Therefore, it is particularly important to establish a global, unified, and efficient access mechanism. Focus on eliminating data distribution and heterogeneity, and realize the unification of heterogeneous data through certain pers...

AI Technical Summary

Problems solved by technology

However, in order to maintain this persistent information, a huge data space is required

At the same time, data transfer and replication need to be performed at certain time intervals, which greatly reduces the real-time performance and reliability of data.

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