Divergent associated fan equipment operation inspection knowledge graph construction and retrieval method

The invention relates to a divergent associated fan equipment operation inspection knowledge graph construction and retrieval method, belongs to the field of fan equipment operation inspection and knowledge graphs, and aims at structured data such as data in a relational database to complete mapping from the structured data to a knowledge graph and realize conversion from the database to the knowledge graph; for unstructured data, a deep learning method is mainly adopted, knowledge extraction is carried out on text and webpage information generated in the fan operation and inspection process, entity recognition and relation extraction are completed, data obtained after knowledge fusion is stored in Neo4j, and the data are stored in the Neo4j; visual display of the knowledge graph is realized through a Neo4j graph database, and semantic query can be performed by using a Cyber query language. And operation and maintenance personnel can conveniently and quickly query operation and maintenance knowledge and mine