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Robot cleaner and control method thereof

  • US 20120125363A1
  • Filed: 11/08/2011
  • Published: 05/24/2012
  • Est. Priority Date: 11/24/2010
  • Status: Active Grant
First Claim
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1. A robot cleaner comprising:

  • a main brush to sweep or scatter dust off a floor;

    a main brush motor to rotate the main brush;

    a Revolution Per Minute (RPM) detector to detect an RPM of the main brush motor; and

    a control unit to determine a material or state of the floor according to the RPM of the main brush motor acquired by the RPM detector and control an operation of the robot cleaner based on the determined material or state of the floor.

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