Research And Development Of Graphical System For Nuclear Power Plant Operation Procedures Based On Ontology Modeling

With the development of information and intelligence,various industries are seeking to operate in a more efficient and intelligent way.In 2017,the State Council put forward the guiding ideology and strategic objectives for the development of a new generation of artificial intelligence in C hina by 2030,and the theory and technology will reach the worldundefineds leading level.Intelligent nuclear power is an important direction of nuclear energy development under the trend of artificial Intelligence.Intelligent operation,as a local goal under the policy of intelligent nuclear power,is a research direction at present.The operation procedures of nuclear power plants are important documents to ensure the safety of nuclear power plants.The nuclear safety law requires operators to operate in strict accordance with the operation procedures.The operation procedures currently in use for nuclear power plants are basically paper-based,also a direct use of plain text.It is of great significance to improve the operation safety of nuclear power plants and lighten the burden of operation personnel by improving the use of traditional procedures and adopting simpler and more efficient inspection methods of procedures.Based on the study of the operation procedure of the nuclear power plant,this paper puts forward that the text of the procedure is developed according to the characteristics of the semantic representat ion and the sentence structure.Design graphical system for nuclear power plant operation procedures to provide intelligent support for operators.In this paper,ontology modeling method is used to construct the ontology of nuclear power plant operation procedures.Extracting and expressing the relationship between knowledge and knowledge through conceptual entities and relational definitions.Concept entity is the foundation of ontology construction.The function of relation definition is to connect scattered concept entity and express specific semantics through the combination of concept and relation.First,using protégé software developed by Stanford University to construct the O ntology of chemical and volume control system operating procedures.Based on the analysis of the content and sentence pattern of the discipline,the semantic expression of the content of the discipline is accomplished by self-defining six groups of twelve self-defined relationships on the basis of the four basic relations of ontology.The content of the discipline is divided into five categories: "common noun","basic KKS code","rule entry","operation action","operation attribute".The concept is called when expressing the content of the discipline,and the program is graphically displayed by using plug-in Onto Graf.Based on the research o f protocol ontology using Protégé,we use python programming language to develop the discipline ontology independently.Use the ICTC LAS word segmentation tool to mark the word segmentation and part of speech of the discipline text,and carry on the preliminary procedure data processing.A discipline model is established by analyzing the rules,and the program is programmed to automatically generate the rules semantic expression pattern by matching the text and the model.This paper studies the graph style and the supported data format of Baidu brain map kityminder,converts the rules semantic expression pattern into the km format supported by kityminder,and displays the procedures in the form of Baidu brain map.A graphical system for nuclear power plant operation procedures is designed,which combines expert decision support system to integrate state monitoring,abnormal alarm,fault diagnosis and operation guidance of procedures graph,so as to provide efficient operation guidance for operators and ensure operation safety of nuclear power plant.