Method, device and equipment for adjusting zoom value of camera on tower crane

The invention discloses a method, device and equipment for adjusting the zoom value of a camera on a tower crane, and the method comprises the steps: obtaining the current falling height of a lifting hook when the lifting hook of the tower crane is used for lifting a lifting object, and obtaining the overall dimension information of the lifting object; determining a first zoom numerical value corresponding to the current falling height according to a preset corresponding relation between the falling height and the zoom numerical value; determining a second zoom value corresponding to the contour size information according to a preset corresponding relationship between the contour size and the zoom value; according to the first zooming value and the second zooming value, the current zooming value of a camera installed on the tower crane is adjusted; wherein the camera is used for acquiring image information of the hanging object; according to the invention, the zoom value of the camera on the tower crane can b