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Agricultural trench depth sensing systems, methods, and apparatus

  • US 10,455,756 B2
  • Filed: 09/01/2017
  • Issued: 10/29/2019
  • Est. Priority Date: 10/24/2012
  • Status: Active Grant
First Claim
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1. A method of measuring actual depth of a trench opened in a soil surface of a field by an opening disc of agricultural row unit, the agricultural row unit including a gauge wheel, the gauge wheel supported by a gauge wheel arm pivotally mounted to a frame of the agricultural row unit, a depth adjustment assembly having a plurality of selectable positions, each of the selectable positions establishing a selected trench depth by limiting an amount of upward travel of the gauge wheel relative to the opening disc, the method of measuring the actual trench depth comprising:

  • as the agricultural row unit traverses the field with the depth adjustment assembly in one of the selectable trench depth positions, generating a trench depth signal related to an actual trench depth opened in the soil surface by the opening disc;

    determining a measured trench depth value based on said trench depth signal;

    determining a location of the agricultural row unit in the field based on a GPS signal;

    associating said measured trench depth value with said location; and

    generating a trench depth map spatially relating a plurality of locations in the field with the measured trench depth at each of said plurality of locations.

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