Construction of Hierarchical Knowledge Graph Based on Electromechanical Equipment

Abstract

The purpose of constructing the knowledge graph of electromechanical equipment is to make full use of the data and information carried by electromechanical equipment, constructing the knowledge association between each independent equipment. The knowledge graph of electromechanical equipment uses a structured way to express the relationship between concepts and entities in electromechanical equipment, and uses this form for data storage and computational reasoning. This can simplify the design of the electromechanical system and improve the efficiency of knowledge reasoning and knowledge calculation. However, due to the complex structure, high correlation and large amount of information of electromechanical equipment, the constructed knowledge graph of electromechanical equipment often has the problem of insufficient association expression and sparse information. Especially lack of expression of its hierarchical relationship. Therefore, this paper proposes a hierarchical relationship construction method based on electromechanical equipment, which is specifically used to extract the information about the physical model, logical model and geometric model of power distribution equipment, electrical equipment, cables, and pipelines in electromechanical equipment, constructing a Hierarchical knowledge graph. The hierarchical relationship construction method is mainly through the integration of logical and physical levels, hierarchical structure of electromechanical equipment data and data clustering as an important feature, so as to obtain stable and hierarchical characteristics of electromechanical equipment knowledge graph. At the same time, the hierarchical features can further complete the construction of the knowledge graph, thereby improving the structure of the knowledge graph and efficiency of the reasoning engine.