| With the rapid development of aerospace,imaging,communication and other related technologies,the production capacity and quality of remote sensing data have been comprehensively improved,which attracts more and more researchers and data users from different backgrounds all over the world.In order to make remote sensing technology better serve all disciplines,the research on remote sensing and spatial data sharing and integration has become an important research direction of remote sensing.The purpose of this paper is to realize a multi-source remote sensing data sharing and integration tool.Firstly,based on the in-depth study of data sharing and integration technology,this paper summarizes and analyzes the advantages,disadvantages and applicable scenarios of various technologies,and puts forward the design idea of sharing and integration tool based on ETL Technology.Secondly,according to the basic functions of the sharing platform,on the basis of demand analysis,this paper puts forward the demand points and design objectives of data access,business definition,data processing and system management for different user groups.Finally,according to the result of requirement analysis,combined with the infrastructure of sharing platform,the system is divided into four modules and completed the realization of each module.The universal access module provides a unified data access interface to realize the integrated access of data.The workflow management module is used to define and control the workflow and realize the definition of business process.The data engineering tool set with high expansibility realizes the data processing operation in the whole life cycle based on the business process.Metadata repository provides data support for system management and data retrieval.Finally,a middleware for remote sensing data sharing and integration based on ETL Technology and cloud computing platform is implemented.Figure[39]table[12]reference[54]... |
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