The invention discloses a dynamic situation updating and obtaining method based on a multi-
modal knowledge graph, and belongs to the technical field of
natural language processing, and the method comprises the steps: collecting multi-source and multi-
modal data; preprocessing the multi-source and multi-
modal data to generate standardized data with a
timestamp and a position
label; a body is defined, cross-modal feature alignment and
semantic mapping are realized, a multi-modal knowledge triple is generated, and a multi-modal
knowledge graph is constructed; and in combination with a data increment threshold and a time period, realizing automatic increment updating and timing full-quantity
verification of the multi-modal
knowledge graph, and based on data credibility weighting and multi-source modal
verification, outputting a high-credibility updating result to realize minute-level updating of the situation. According to the method, the problems of weak multi-
modal data fusion capability, insufficient dynamic updating efficiency and accuracy and lack of
uncertain data processing in the prior art are solved. According to the method, the
utilization rate of multi-
modal data can be improved, the situation updating
delay is reduced, the situation credibility is improved, and the situation
interpretability is enhanced.