Automatic unsaturated soil water infiltration measuring system and method based on Internet of Things

A soil moisture and automatic measurement technology, applied in transmission systems, measuring devices, and material absorption and weighing, etc., can solve the problems of inability to automatically record soil moisture infiltration process, high labor and material costs, and reduce experimental workload and function. Complete, easy to install and use

Pending Publication Date: 2017-10-13
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0004] The invention provides an automatic measurement system and method for unsaturated soil moisture infiltration based on the Internet of Things to solve the tech

Method used

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  • Automatic unsaturated soil water infiltration measuring system and method based on Internet of Things
  • Automatic unsaturated soil water infiltration measuring system and method based on Internet of Things
  • Automatic unsaturated soil water infiltration measuring system and method based on Internet of Things

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example 1

[0114] Example 1: The concentration of infiltration solution, infiltration water head, initial soil moisture content, and soil bulk density corresponding to 10 groups of experiments are shown in Table 3. The data in Table 2 and the cumulative infiltration measured by the 10 groups of gravity sensors and the moisture sensor measured Substitute the obtained wetting front data into Equation (1.7) and Equation (1.8) respectively, and conduct multiple regression analysis according to Equation (1.10) and Equation (1.11), and obtain the wetting front and cumulative Infiltration rate and solution concentration, water head, initial water content, soil bulk density relationship function relationship formula, the parameters are substituted into the formula (1.9) to get the infiltration rate formula (1.14).

[0115] Z=1.868C -0.326 h 0.261 θ -0.0365 gamma -0.0182 t 0.569 (1.12)

[0116] I=1.107C -0.302 h 0.224 θ -0.0205 gamma -0.0126 t 0.503 (1.13)

[0117] i=1.107C -0.302 h...

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Abstract

The invention discloses an automatic unsaturated soil water infiltration measuring system and an automatic unsaturated soil water infiltration measuring method based on Internet of Things. The automatic unsaturated soil water infiltration measuring system comprises a Markov bottle, an elevator, a soil column, a gravity sensor, a moisture sensor, a counter, a data acquisition and transmission device, terminal equipment and the like. Based on the Internet of Things, automatic start and stop of an experiment, as well as automatic recording, transmission and real-time viewing of experimental data are achieved, so that the experimental workload is greatly reduced. The automatic soil water infiltration measuring system is complete in function and convenient to mount and use, can achieve a water infiltration process experiment under the conditions of different solution concentrations, different initial soil moisture contents, different soil bulk densities and different infiltration heads, has the advantages of automation, high efficiency, real-time performance, economy, reliability and the like, and is applicable to layered soil and homogeneous soil.

Description

technical field [0001] The invention relates to the technical field of agricultural water and soil engineering, in particular to an automatic measurement system and method for unsaturated soil moisture infiltration based on the Internet of Things. Background technique [0002] Water infiltration is an important content of soil moisture research, which determines the amount of rainfall or irrigation water entering the soil, governs soil water dynamics, affects water budget, and deep water storage. Studying the infiltration process of soil moisture is of great significance to the transformation relationship of "four waters" (atmospheric water, surface water, soil water, groundwater) and agricultural water-saving irrigation. The main factors affecting soil water infiltration are infiltration water head, infiltration solution concentration, initial soil moisture content, bulk density, soil salinity, soil texture and so on. Soil water infiltration is the process of water enterin...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N5/02H04L29/08
CPCH04L67/12G01N5/025G01N15/08G01N2015/0813Y02A90/30
Inventor 王建华任长江龚家国王丽珍朱永楠
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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