Soil moisture detection device and system

Abstract

The present disclosure discloses a soil moisture detection device, a first pole and a second pole are set in soil, a power supply switch circuit is controlled through a main control chip, an external voltage is added to a signal oscillation source, voltage is converted into an oscillation signal by the signal oscillation source, oscillation signal reaches a first pole through a first capacitor and a first inductor. When the soil between the first pole and second pole is completely dry, the two are equivalent to an open circuit, and a waveform detection unit can collect strong oscillation signal corresponding to frequency. When the soil between the first pole and second pole is moist, the oscillation signal is transmitted from the first pole to the second pole through the moist soil, an intensity of the oscillation signal corresponding to the frequency collected by the waveform detection unit changes.

Dependencies are inferred from the claim text.