Autonomous vacuum cleaner

  • US 20050166354A1
  • Filed: 01/27/2005
  • Published: 08/04/2005
  • Est. Priority Date: 01/30/2004
  • Status: Abandoned Application
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First Claim
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1. An autonomous vacuum cleaner comprising:

  • a cleaning means to clean a floor surface where the cleaner moves;

    an obstacle detection sensor to detect an obstacle on the cleaner'"'"'s way and to measure distance to the obstacle;

    a moving means with which the cleaner moves autonomously in accordance with an output of the obstacle detection sensor to avoid the obstacle;

    a light receiving sensor having a passive-type line sensor to receive light from a floor surface; and

    a floor surface distance calculating means which derives distribution of distances to the floor surface within a viewing angle of the light receiving sensor on the basis of correlation between received light intensities on two light receiving areas of the line sensor, wherein the moving means and the cleaning means are controlled on the basis of the distance distribution derived by the floor surface distance calculating means.

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