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Method and Device for Detecting a Rotating Wheel

  • US 20140218227A1
  • Filed: 06/19/2012
  • Published: 08/07/2014
  • Est. Priority Date: 06/21/2011
  • Status: Active Grant
First Claim
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1. A method for detecting a rotating wheel of a vehicle that is travelling on a roadway in a travel direction, the wheels of which are at least partially exposed laterally, the method comprising:

  • emitting an electromagnetic measurement beam having a known temporal progression of its frequency onto a first section above the roadway in a direction in a slant with respect to the vertical and normal or at a slant with respect to the travel direction;

    receiving a reflected measurement beam and recording the temporal progression of its frequencies relative to the known progression as a reception frequency mixture progression; and

    detecting a band of frequencies which is continuously inclining or declining over a period of time in the reception frequency mixture progression as a wheel.

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