Method and system for robot localization and confinement

  • US 7,196,487 B2
  • Filed: 09/08/2005
  • Issued: 03/27/2007
  • Est. Priority Date: 01/24/2001
  • Status: Active Grant
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First Claim
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1. A robot, comprising:

  • a motor drive that independently drives each of at least two wheels of the robot;

    a light beam receiver that receives light substantially omnidirectional and detects when the robot encounters a confinement light beam directed along a substantially horizontal axis; and

    a processor, connected to the light beam receiver and to the motor drive, that recognizes the confinement light beam, and upon detection of the confinement light beam, controls the motor drive to turn the robot until the confinement light beam is no longer detected;

    wherein the processor controls the motor drive to turn the robot in a direction decided according to gradient levels of the confinement light at different orientations of the robot.

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