US 11,853,021 B2
Systems and methods for harmonic analysis of soil by converting frequency of operating signal
William Eugene Jennings, San Jose, CA (US); and Zachary Gentry, Oakland, CA (US)
Assigned to FarmX Inc., Mountain View, CA (US)
Filed by FarmX Inc., Mountain View, CA (US)
Filed on Apr. 16, 2021, as Appl. No. 17/233,184.
Application 17/233,184 is a continuation of application No. 16/588,617, filed on Sep. 30, 2019, granted, now 10,983,489.
Application 16/588,617 is a continuation in part of application No. 15/801,242, filed on Nov. 1, 2017, granted, now 10,509,378, issued on Dec. 17, 2019.
Claims priority of provisional application 62/418,675, filed on Nov. 7, 2016.
Prior Publication US 2021/0232108 A1, Jul. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G05B 15/02 (2006.01); G06V 20/10 (2022.01); A01G 25/16 (2006.01); B05B 12/12 (2006.01); G06Q 50/02 (2012.01)
CPC G05B 15/02 (2013.01) [A01G 25/16 (2013.01); B05B 12/12 (2013.01); G06V 20/188 (2022.01); G05B 2219/2625 (2013.01); G06Q 50/02 (2013.01); Y02A 40/10 (2018.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
selecting a first frequency for use by a sensor;
converting an operating signal having the first frequency into a transmitting signal having a second frequency using the sensor, the second frequency being a harmonic of the first frequency;
transmitting the signal having the second frequency into soil to produce feedback from the soil;
comparing a number of waves of a responsive signal in the first frequency, and derived from the feedback, to a number of waves of the operating signal in the first frequency;
determining attenuation by the soil using the comparing of the responsive signal and the operating signal, the attenuation being indicative of clay within the soil; and
selectively adjusting pumps and/or valves of an irrigation system to increase or decrease a flow of water to a target area based on the determined attenuation.