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Vehicle regional scanner

  • US 6,661,524 B2
  • Filed: 07/09/2001
  • Issued: 12/09/2003
  • Est. Priority Date: 07/09/2001
  • Status: Expired due to Fees
First Claim
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1. A method for detecting the height of the ground covered with vegetation in front of a vehicle having an adjustable dozer blade, comprising the steps of:

  • scanning a laser beam in front of the vehicle along a path essentially transverse to the motion of the vehicle, wherein the beam traverses said path at a speed sufficiently slow to allow the beam to penetrate the vegetation and be reflected from the ground at some points along said path;

    sensing the reflected light of the laser beam at a plurality of discrete points along said path;

    determining from the sensed reflected laser light the time of flight of the laser beam at each of the plurality of points; and

    calculating the height of the ground based upon the longest time of flight.

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