The invention belongs to the technical field of mine ventilation monitoring, and aims to solve the problems that a
traditional knowledge system based on a rule base has bottlenecks in the aspects of dealing with sudden working conditions,
knowledge updating and semantic reasoning, and is high in construction cost and complex to maintain. The invention provides a mine ventilation
knowledge graph construction method based on a
large model, and the method comprises the following steps: S100, obtaining and cleaning a multi-source heterogeneous text related to mine ventilation, and obtaining a
JSON format knowledge fragment of a unified structure; s200, constructing an ontology model and defining a semantic structure; s300, constructing four types of
knowledge extraction tasks, and extracting entities, attributes and relationships; s400, constructing an entity alignment module; and S500, constructing a
graph database structure. According to the method, automatic structured expression, semantic consistent fusion and intelligent
visual query of knowledge in the mine ventilation field can be realized, and an interpretable, extensible and reasonable intelligent support platform is provided for a mine ventilation
system.