Research On Remote Sensing Data Distribution And Sharing Strategy Under Multiple Data Source Mode

With the rapid development of remote sensing technology,the total amount of remote sensing image data is rapidly increasing,remote sensing data as the basis of remote sensing application,it has been widely applied in the fields of urbanization and geological disasters,the demand for remote sensing data has increased dramatically in various scientific research institutions and local colleges.Therefore,how the user obtains remote sensing data quickly is a problem that many scholars study together.In view of the above problems,based on the existing remote sensing data transmission architecture and remote sensing data transmission technologies,this paper improves the existing remote sensing data distribution and sharing structure,expands a single data source,and forms a multiple data source mode,research on remote sensing data distribution and sharing strategy under multiple data source mode is aimed at rapid remote sensing data distribution and sharing,enabling users in all regions to quickly acquire remote sensing data and meet the application requirements of remote sensing data for users in various regions.The main research content of this article includes the following aspects:1.Propose a data distribution center initiative to expand capacity.Firstly,the data that needs to be pushed through the data mapping rules is prejudged;Secondly,through the data push method,the push data is pushed to the extended data distribution center,and the extended data distribution center is also used as the data source to form multiple data sources to improve the efficiency of data transmission.2.Build a data resource index database.By constructing a data resource index database,unified management of data information and node information of each data distribution center,externally providing a unified query and other service interfaces,according to the data information requested by the user in the database to search,obtain data stored in the data distribution center path information.3.Propose a parallel data transmission method for multiple data sources.In the transmission process,the task volume of data blocks transmitted by each data source is dynamically adjusted,data blocks are acquired in parallel from multiple data sources,the data transmission rate is increased,and the integrity of the downloaded data is ensured by adopting a breakpoint transmission method.Finally,on the basis of the research content,the experimental verification of the parallel data transmission method of multiple data source proposed in this paper is carried out.Through the analysis of the experimental results,it shows the feasibility and effectiveness of the research content of this paper.