Multilayer multi-probe fast detection method for soil moisture and multilayer multi-probe fast detection device for soil moisture

Abstract

The invention relates to a multilayer multi-probe fast detection method for soil moisture and a device. The method comprises the following steps of: inserting a probe part of a needle plugging type soil moisture sensor into a to-be-measured soil layer, and then measuring an average volumetric water content of the whole soil in a specified scope; directly grafting a signal collecting interface of a wireless signal emitter with an output port of the needle plugging type soil moisture sensor and transmitting the average volumetric water content of the whole soil into a signal collecting module of the wireless signal emitter; under the control of a control module in the wireless signal emitter, transmitting the data of the signal collecting module to a mobile terminal through a communication module; and measuring and calculating the multi-layer soil moisture by the mobile terminal through APP software, thereby acquiring the average volumetric water content of each single soil layer. According to the multilayer multi-probe fast detection method, the multi-band frequency detection for the soil moisture measurement of the soil layers in different depths can be realized; the resolution ratio is increased; the method is widely applied to the soil moisture content monitoring, water-saving irrigation, greenhouse control and precision farming of the industries and departments of agriculture, water conservancy, weather, environmental protection, forestry, and the like.

Description

technical field [0001] The invention relates to a soil moisture rapid measurement technology, in particular to a multi-layer and multi-needle soil moisture rapid measurement method and device. Background technique [0002] Soil moisture refers to the water kept in the soil pores, also known as soil moisture. Usually, the soil sample can be dried in an electric oven (the temperature is controlled at 105-110°C), and then the amount of water released from the soil pores can be measured as the soil moisture content. Soil moisture is not pure water but a thin solution containing colloidal particles. The main sources of soil moisture are atmospheric precipitation and irrigation water, in addition to the condensation of water vapor near the surface, rising groundwater levels and moisture in soil minerals. The amount of atmospheric precipitation infiltrated into the soil mainly depends on the amount of precipitation, the intensity and nature of precipitation. Generally speaking, ...

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Problems solved by technology

[0004] In view of the poor measurement accuracy of deep soil moisture in the prior art, the problem to be solved by the present invention is to provide a multi-layer and multi-needle soil moisture rapid measurement method and device that can lengthen the probe length and improve the measurement accuracy.

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