Automatic calibration system for header height controller with operator feedback
AssigneeHeadsight, Inc.
InventorsRobert Schlipf, Johnathan Rassi, Nathan Virkler
Life of this patent
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Abstract
Method of calibrating a header height controller responsive to signal outputs from a plurality of height sensors mounted to a header, the signal outputs are variable in magnitude with respect to changes in height of the header relative to a surface. The methods automatically and accurately calibrate header control systems to eliminate the need for manual calibration and provides feedback to the operator to ensure the quality of the calibration and to assist the operator in identify potential problems with sensors or header setup which could affect the operation and performance.
Claims53
A method of calibrating a header height controller, the header height controller comprising processing circuitry capable of receiving output signals from a plurality of height sensors mounted to a header, the output signals variable in magnitude with respect to changes in height of the header relative to a surface, the header height controller responsive to the output signals from the plurality of height sensors, the method comprising the steps of:
- moving the header through a range of motion relative to a surface;
- as the header moves through the range of motion, receiving and storing at predetermined sampling intervals the output signal magnitudes for each of the plurality of height sensors;
- defining a Set Point C Magnitude (“SPCM”) for each of the plurality of height sensors, wherein the SPCM is the magnitude of the output signal when the header is at a lowest point of the range of motion;
- defining a Set Point A Magnitude (“SPAM”) for each of the plurality of height sensors, wherein the SPAM is the magnitude of the output signal at a predetermined elevation above the lowest point of the range of motion;
- identifying anomalies between the output signal magnitudes at predefined points of the sampling intervals of each of the plurality of height sensors.
A method of calibrating a header height controller, the header height controller comprising processing circuitry capable of receiving output signals from a plurality of height sensors mounted to a header, the output signals variable in magnitude with respect to changes in height of the header relative to a surface, the header height controller responsive to the output signals from the plurality of height sensors, the method comprising the steps of:
- moving the header through a range of motion between a raised position in which the header is at an elevation above a surface where no portion of the header is in contact with the surface and a lowered position in which the header is in contact with the surface;
- as the header moves through the range of motion, receiving and storing at predetermined sampling intervals the output signal magnitudes for each of the plurality of height sensors;
- defining a Set Point B Magnitude (“SPBM”) for each of the plurality of height sensors, wherein the SPBM is the magnitude of the output signal at an elevation in the range of motion where a first appreciable deviation occurs in a rate of change of the output signal magnitudes between one of the sampling intervals and a preceding one of the sampling intervals;
- identifying anomalies between the output signal magnitudes at predefined points of the sampling intervals for each of the plurality of height sensors.
Dependencies are inferred from the claim text.