US 12,235,103 B1
Systems and methods for identifying misaligned wheeled irrigation towers
James G. Stewart, II, Kaysville, UT (US); and Brad J. Wardle, Kaysville, UT (US)
Assigned to HUSQVARNA AB, (SE)
Filed by Husqvarna AB, Huskvarna (SE)
Filed on Dec. 18, 2023, as Appl. No. 18/543,518.
Application 18/543,518 is a continuation of application No. 17/740,129, filed on May 9, 2022, granted, now 11,846,506.
Application 17/740,129 is a continuation of application No. 16/183,296, filed on Nov. 7, 2018, granted, now 11,326,867, issued on May 10, 2022.
Claims priority of provisional application 62/582,885, filed on Nov. 7, 2017.
This patent is subject to a terminal disclaimer.
Int. Cl. G01B 7/30 (2006.01); A01G 25/09 (2006.01)
CPC G01B 7/30 (2013.01) [A01G 25/092 (2013.01)] 16 Claims
OG exemplary drawing
 
1. Circuitry for identifying a misaligned wheeled irrigation tower within a plurality of wheeled irrigation towers, the circuitry comprising:
a test resistance configured for installation in a center pivot irrigation system;
a plurality of resistances, wherein each resistance of the plurality of resistances is configured for installation in a wheeled irrigation tower of the center pivot irrigation system and to be coupled to the test resistance, and wherein each resistance of the plurality of resistances is configured to be coupled to a corresponding switch of a respective wheeled irrigation tower and to a neutral line; and
detection circuitry configured to be coupled to the test resistance, wherein the detection circuitry is configured, when installed in the center pivot irrigation system, to identify the misaligned wheeled irrigation tower of the plurality of wheeled irrigation towers based on a detected voltage,
wherein the detection circuitry is configured to measure at least one calibration voltage, and to determine a plurality of threshold voltages based on the at least one calibration voltage.