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Apparatus for visually locating and communicating with mobile robots

  • US 4,882,694 A
  • Filed: 05/12/1988
  • Issued: 11/21/1989
  • Est. Priority Date: 08/30/1985
  • Status: Expired due to Term
First Claim
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1. A combined communication and positioning system for a mobile apparatus, comprising:

  • an apparatus light source mounted on the mobile apparatus;

    a modulator electrically connected to the apparatus light source, wherein the modulator is for generating modulating data to be sent to the apparatus light source to modulate the light output of the apparatus light source;

    a fixed light receiver off board the mobile apparatus for receiving data in the form of the modulated light from the mobile apparatus light source;

    a fixed demodulator electrically connected to the fixed light receiver, for demodulating the light received from the apparatus light source;

    a camera off board the mobile apparatus for forming an image of the apparatus light source to locate the position of the mobile apparatus; and

    means for correlating said position of the mobile apparatus with the said data in the form of the modulated light received from the mobile apparatus light source, and for generating and transmitting navigation commands to said mobile apparatus, based upon said correlation.

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