Design And Implementation Of Nuclear Safety Heterogeneous Database System Based On Ncloud Platform

Nuclear safety is the primary prerequisite for the development of nuclear energy and technology,and the lifeline of nuclear energy development.To enhance the capability of nuclear safety research,with the support of the Informatization Special Project of Chinese Academy of Sciences,the Institute of Nuclear Energy Safety Technology,FDS team carried out China Nuclear Safety Cloud Platform(NCloud)project,aims to provide one-stop data and computing services,large-scale online integrated simulation environment for nuclear safety researchers,change the nuclear energy safety design and evaluation mode.The storage,management and application of nuclear safety data have gradually become the main problem and direction of nuclear informatization and nuclear safety data research.There are three main issues in this field:data storage problem,data retrieval and data management.At present,data and data related to nuclear safety research are dispersed among research units and data platforms,lacking unified data storage platform.In the process of data retrieval,the problem of heterogeneous data,interdisciplinary and cross-disciplinary data retrieval is the main issue.The cross-domain characteristics of nuclear safety data make the process of data management in the database extremely complex.How to quickly grasp the distribution of data is one of the main problems in the data management progress.In this context,this paper studied and designed the data resource system based on NCloud,which integrated the main data resources in the field of nuclear safety research,realized the unified storage,retrieval,management and application of nuclear safety data.The main research contents of this paper are as follows:(1)To solve the unified storage problem of heterogeneous nuclear safety data,implement the cross-domain data retrieval function,Based on the distributed data storage technology,the integrated storage scheme of nuclear safety data is designed,solving the storage problem of heterogeneous data,providing cross-domain data retrieval function,improving the application efficiency of nuclear data.(2)The method and tool of database integrity analysis for nuclear data are researched and developed.Solving the nuclear safety data analysis and management problem.Through the statistical analysis of the unified nuclear data stored in the database,the automatic data completeness analysis of the nuclear database is realized.(3)This system adopts MVVM(Model-View-ViewModel)pattern to design and implement.In order to ensure the reliability and ease of use of the system service,a multi-scene load balancing scheme is designed for different application stages.After the deployment and test,the multi-scene load balancing scheme and the correctness of the system design is verified.The nuclear safety heterogeneous database collected a series of nuclear safety heterogeneous data including nuclear data,material data,component model data,laws and regulations data,providing one-stop integrated data services to the nuclear safety researchers.