Robot obstacle detection system

  • US 6,594,844 B2
  • Filed: 01/24/2001
  • Issued: 07/22/2003
  • Est. Priority Date: 01/24/2000
  • Status: Active Grant
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First Claim
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1. A robot obstacle detection system comprising:

  • a robot housing which navigates with respect to a surface;

    a sensor subsystem having a defined relationship with respect to the housing and aimed at the surface for detecting the surface, the sensor subsystem including;

    an optical emitter which emits a directed beam having a defined field of emission, and a photon detector having a defined field of view which intersects the field of emission of the emitter at a finite region; and

    a circuit in communication with the detector for redirecting the robot when the surface does not occupy the region to avoid obstacles.

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