Optical guidance system for industrial vehicles
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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Abstract
An automatically guided vehicle system for steering a vehicle. Optical sensing detects an image of a segment of track mounted above the path of the vehicle. Electrical signals corresponding to the position of the track are generated. A control circuit then converts these signals into movements for the steering of the vehicle.
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Citations
10 Claims
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1. An automatically guided vehicle system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification