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Sonar ranging/light detection system for use in a robot

  • US 4,620,285 A
  • Filed: 04/24/1984
  • Issued: 10/28/1986
  • Est. Priority Date: 04/24/1984
  • Status: Expired due to Fees
First Claim
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1. For use in a robot, a sensor system comprising:

  • a first acoustic transducer for transmitting and receiving acoustic signals;

    a light detector responsive to a light signal incident thereon;

    a rotating reflector rotatable through 360° and

    positioned adjacent said first acoustic transducer and said light detector for directing the acoustic signals transmitted by the transducer outward from said robot and for directing light signals and acoustic signal echoes incident on said reflector to said light detector and to said first acoustic transducer, respectively;

    rotation sensing means coupled to said rotating reflector for determining the angular position thereof;

    a controller coupled to said rotating reflector and to said sensing means for controlling the angular position of said reflector; and

    a second fixed acoustic transducer positioned on a forward portion of the robot and coupled to said controller for transmitting and receiving acoustic signals.

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