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Control method for cleaning robots

  • US 9,687,130 B2
  • Filed: 02/15/2013
  • Issued: 06/27/2017
  • Est. Priority Date: 02/16/2012
  • Status: Active Grant
First Claim
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1. A control method of a cleaning robot, executed by a controller embedded in the cleaning robot, comprising:

  • moving the cleaning robot according to a first direction before a light detector of the cleaning robot detects a light beam;

    receiving a first trigger signal transmitted from the light detector and keeping moving the cleaning robot according to the first direction when the light detector of the cleaning robot detects the light beam;

    receiving a second trigger signal transmitted from the light detector, moving the cleaning robot for a predetermined distance along the first direction to let the light detector of the cleaning robot pass through the light beam and then stopping the cleaning robot when the light detector does not detect the light beam; and

    moving the cleaning robot in a second direction to leave a restricted area labeled by the light beam, wherein when the cleaning robot moves in the second direction and the light detector detects the light beam, the light detector transmits a third trigger signal to the controller, and when the light detector does not detect the light beam, the light detector transmits a fourth trigger signal to the controller, and the controller determines whether the cleaning robot has left the restricted area according to the third trigger signal and the fourth trigger signal.

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