The invention relates to an intelligent
nozzle control method,
system and device based on three-dimensional imaging, and the method comprises the steps: obtaining the three-dimensional
point cloud data of the surface of an insulator, constructing a three-dimensional curved surface model of the surface of the insulator according to the three-dimensional
point cloud data, and obtaining the curved
surface shape features of the surface of the insulator; obtaining ice
layer thickness data of the surface of the insulator according to the three-dimensional
point cloud data, classifying the ice
layer thickness data, and obtaining ice layer distribution areas of different thickness grades; the spraying direction and angle of the
nozzle are controlled based on the curved
surface shape characteristics of the insulator surface and the ice layer distribution area; and inputting the water outlet or air outlet parameter data at the current moment into the trained LSTM prediction model, outputting the predicted ice
layer thickness and the
ice accretion area, and controlling the water outlet or air outlet temperature, the flow velocity and the flow direction of the
nozzle according to the predicted ice layer thickness and the
ice accretion area. Accurate, efficient and safe deicing on the surface of the insulator is achieved, and stable operation of a
power transmission line is effectively guaranteed.