Optically based position location system for an autonomous guided vehicle

  • US 5,812,267 A
  • Filed: 07/10/1996
  • Issued: 09/22/1998
  • Est. Priority Date: 07/10/1996
  • Status: Expired due to Fees
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First Claim
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1. An optically based position location systems comprising:

  • multiple reflectors positioned at known locations in an environment;

    a vehicle for traveling along a path in said environment;

    a first sensor for generating and detecting a collimated and polarized first light signal reflected from one of said reflectors, and for generating a first output signal in response to detecting said first light signal,a second sensor for generating and detecting a collimated and polarized second light signal reflected from said one reflector, and for generating a second output signal in response to detecting said second light signal where said first and second sensors are mounted on said vehicle so that said first and second light signals converge anda first data processor for determining the distance between a reference coordinate on said vehicle and said one reflector based on said first and second output signals.

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