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Optical guidance system for industrial vehicles

  • US 4,947,094 A
  • Filed: 07/23/1987
  • Issued: 08/07/1990
  • Est. Priority Date: 07/23/1987
  • Status: Expired due to Fees
First Claim
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1. An automatically guided vehicle system comprising:

  • a vehicle including at least one steerable wheel;

    a track mounted above said vehicle and parallel to its intended path, said track being constructed and arranged to emit light having a range of wavelengths distinct from the ambient light;

    an optical system on said vehicle constructed and arranged to receive light emitted from said track and project an image of a segment of said track;

    a light-sensitive device positioned to receive said image and constructed and arranged to detect the position of said image;

    means for generating a first electrical signal dependent on said position;

    means for converting said first electrical signal to a steering signal;

    servo means for converting said steering signal into movements of said steerable wheel.

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