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Determining a crane tilt angle

  • US 9,522,809 B2
  • Filed: 02/10/2014
  • Issued: 12/20/2016
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A method for determining a tilt angle of a crane, said method comprising:

  • rotating a portion of said crane about a pivot point, wherein a Global Navigation Satellite System (GNSS) receiver antenna is disposed on said portion of said crane;

    determining, by a GNSS receiver, at least three locations of said GNSS receiver antenna in a geo-referenced coordinate system during said rotating;

    calculating, by a processor, a plane of rotation based on said at least three locations of said GNSS receiver antenna; and

    determining, by said processor, a tilt angle of said crane based on an angular difference between said plane of rotation and a horizontal plane, wherein said tilt angle includes an angular displacement from a first vector normal to said horizontal plane to a second vector normal to said plane of rotation about said pivot point.

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