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Electric fan capable of controlling rotation range and method of controlling the same

  • US 10,641,517 B2
  • Filed: 07/18/2018
  • Issued: 05/05/2020
  • Est. Priority Date: 07/18/2017
  • Status: Active Grant
First Claim
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1. An electric fan comprising:

  • a head unit comprising a fan or a heater;

    a photographing unit configured to capture an image;

    an image analysis unit configured to recognize at least one service target through detection of a face region from the image; and

    a movement control unit configured to control a movement of the head unit in a range comprising the at least one service target,wherein the image analysis unit is configured to estimate a distance between the electric fan and a person based on at least one interval between feature points of eyes, a nose, a mouth, or ears in the face region of the image or a size of the face region, and identify the face region that the estimated distance is within a predetermined distance as the at least one service target.

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