Design And Implementation Of Multi-source Heterogeneous Nuclear Data Application System

In regional environmental radiation monitoring,distributed deployment with nuclear equipment as the detection node is the main way.These equipment systems are independent of each other,with different hardware platforms,operating systems,and data storage platforms.with multiple data sources and heterogeneous characteristics,unified management of equipment information is difficult,especially in managing nuclear data for qualitative and quantitative analysis.Heterogeneous data integration technology was applied in the field of nuclear information processing,and a multi-source heterogeneous nuclear data application system solution was proposed with a middleware system to achieve efficient and transparent sharing of nuclear data.The core work of the thesis is:(1)Aiming at nuclear detection equipment,the nuclear data is not as complicated as the existing large server-type nuclear database,and there is no unified standard for the nuclear database model,which may confuse the global model after the integration of the model.For the nuclear detection equipment,a global data model for nuclear data is designed,including the conceptual model and Logical model to ensure integrated data quality.(2)Ensure high autonomy of local data sources,deploy core Web services,use middleware to connect local data sources and user applications,and solve key problems such as schema mapping,query processing,and result integration.,and combine linear binary trees with Kazakh The Greek table transfers the mapping relationship to optimize the integration process.(3)Compiling web services with g Soap,XML as data storage format,and Qt framework to complete cross-platform software system design,improve business execution logic from the perspective of servitization and modularization,improve system reliability and scalability,and finally develop an interface Simple and beautiful multifunctional nuclear data management terminal.(4)After the design is completed,an embedded Linux cloud server is used as a local data source node to establish a multi-source heterogeneous core data query and management experimental test platform.The test results show that the multi-source heterogeneous core data application system based on Qt / g Soap meets the system design requirements,the modules operate stably and reliably,and can be easily transplanted by simply modifying between different system platforms.The cross-platform effect is significant and features The test results prove that the designed global kernel data pattern ensures the quality of the integrated data and reduces the complexity of schema mapping.The binary tree combined with the hash table storage mapping relationship is used to present the query processing results and integrate the results,which greatly reduces the frequency of mapping files.Access simplifies the data integration process and improves system response efficiency.In the nuclear data query effect test,elemental query,nuclide query,and energy query were measured.The results show that the query accuracy rate reaches 100%,the test results are good,and the data source information management and maintenance are simple,which meets users' requirements for nuclear data query management Multifunctional requirements.