Large Flow Of Real-time Database Schema Analysis And Realization

Real-time historical database is a key technology in the industrial enterprise automation system, the research and development of Real-time historical database which owns Intellectual Property is important to further theory research and implement of project.In electric enterprises, real-time data is vital data resource of them. Effectively utilizing real-time data can support enterprises'plans, and improve managers'ablity and workers'productive efficiency, and enhance enterprises'competitive ablilty, and increase the synthetical benefit of enterprises.This thesis is completed based on GDRTDB which is in cooperation with the China Electric Power ScienceResearch Institute with theory and practice's innovation.GDRTDB is developed on the current situation of electric power enterprises and is adequately concerned of the actual needs of electric power enterprises and is refered to theoretical study and actual products in domestic and overseas related fields.GDRTDB is a large real-time historical database system. In this thesis, the design of the database and the various components and functional modules are introduced in details.Firstly, this thesis displays the background and significance of Real-time historical database. Based on them , analyse the current domestic and foreign mainstream real-time database.Secondly, consulting the current mainstream real-time database system,this thesis puts forward the solution of GDRTDB, and the demand analysis and overall design for GDRTDB Real-time historical database. And particularly set forth the architecture and basic functions and technical standard of GDRTDB Real-time historical database. And emphasize on the design of framework.Thirdly, this thesis displays the framework and the implementation of the server of GDRTDB Real-time historical database. And introduce all the function modules, especially the design and implementation of the net module, and authority module, and label points'and station points'config module, and log module. And emphasize on the design and implement of the net module. Select and use EventSelect modules as GDRTDB net module, and improve it completely.Fourthly, this thesis emphasizes on compression algorithm of the realtime data. According to the actual electronic power plant, mend the algorithm on the delay time of uploading the compressed data.Fifthly, this thesis displays management program of GDRTDB, Client DLL and Directory Server simply.Finally, this thesis puts forward the preliminary idea, and displays all the modules of the function modules and the relationship among modules.