Patent ID: 8606408

Claim:
A control system for a fan, the control system comprising: a depth-sensing camera to capture an image of an object next to the fan in the line of sight of the depth-sensing camera and gathers distance data between a plurality of points on the object and the depth-sensing camera; a processor connected to the depth-sensing camera to process the image and the distance data from the depth-sensing camera; and a storage unit connected to the processor unit and storing a plurality of programs to be executed by the processor, wherein the storage unit comprises: a distance determination module to obtain a distance between the object and the fan, and compares the distance between the object and the fan against a first preset value; and a power control module to cut off power supplied to the fan when the distance between the object and the fan is less than the first preset value; wherein the storage unit further comprises a camera control module; the distance determination module further compares the distance between the object and the fan against a second preset value; when the distance between the object and the fan is greater than the second preset value, the camera control module sets a shooting frequency of the depth-sensing camera as a first frequency; when the distance between the object and the fan is between the first and second preset values, the camera control module sets the shooting frequency of the camera as a second frequency; the first frequency is less than the second frequency.