Knowledge system updating method and device based on building facilities, equipment and medium

The embodiment of the invention discloses a knowledge system updating method and device based on building facilities, equipment and a medium. The method comprises the steps of obtaining knowledge change information of a preset knowledge system, and performing discretization processing on the knowledge change information to obtain knowledge change elements; the preset knowledge system is used for describing the incidence relation between the preset building facilities; determining to-be-updated knowledge elements of a preset knowledge system according to a pre-established knowledge element network and the knowledge change elements; the knowledge element network is used for describing a reference relationship between candidate knowledge elements, and the candidate knowledge elements are obtained by discretizing knowledge points in a preset knowledge system; and determining an update result of the preset knowledge system based on the update of the to-be-updated knowledge element. According to the technical schem