Grain loss dynamic threshold generation
AssigneeDeere & Company
InventorFederico PARDINA-MALBRAN
Life of this patent
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Abstract
An agricultural impact sensor senses grain strikes over a sample time and generates a sensor signal based upon the sensed grain strikes. A trend corresponding to the sensor signal is computed and an absolute difference of the sensor signal values relative to the trend is generated to obtain a set of absolute difference values. The absolute difference values are sorted, and an inflection point in the sorted absolute difference values is identified. A threshold value is generated based upon the inflection point. The agricultural impact sensor is configured to detect grain strikes using the threshold value.
Claims20
A computer implemented method, comprising:
- obtaining a set of sensor signal values generated by an agricultural impact sensor on an agricultural harvester;
- sorting the sensor signal values based on magnitude to obtain sorted sensor signal values;
- identifying an inflection point in the sorted sensor signal values;
- generating a peak threshold value based on the inflection point;
- and
- generating a control signal to configure the agricultural impact sensor to detect grain strikes based on the peak threshold value.
An agricultural system, comprising:
- a signal aggregation system configured to aggregate a set of sensor signal values generated by an agricultural impact sensor on an agricultural harvester;
- an inflection point identification system configured to sort the sensor signal values based on magnitude to obtain sorted sensor signal values and to identify an inflection point in the sorted sensor signal values;
- a peak threshold identifier configured to generate a peak threshold value based on the inflection point;
- and
- an impact sensor signal processing system configured to receive a sensor signal from the agricultural impact sensor and detect grain strikes indicated by the sensor signal based on the peak threshold value.
An agricultural system, comprising:
- a signal aggregation system configured to aggregate a set of sensor signal values generated by an agricultural impact sensor on an agricultural harvester;
- an inflection point identification system configured to sort the sensor signal values based on magnitude to obtain sorted sensor signal values and to identify an inflection point in the sorted sensor signal values;
- a peak threshold identifier configured to generate a peak threshold value based on the inflection point;
- and
- a threshold output system configured to generate a peak threshold output indicative of the peak threshold value.
Dependencies are inferred from the claim text.