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Array-type drip irrigation control device capable of automatic feedback of soil humidity and control method thereof

A soil moisture and control device technology, applied in the fields of humidity control, automatic watering device, non-electric variable control, etc., can solve the problems of inability to effectively monitor and evaluate soil moisture conditions, and the effect of water and fertilizer drip irrigation is lower than expected.

Inactive Publication Date: 2012-10-03
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing soil moisture monitoring methods can only monitor the soil moisture at a fixed location and at a fixed depth, and cannot effectively monitor and evaluate the soil moisture at different depths in a large area. This one-sided monitoring result makes the actual use of The effect of water and fertilizer drip irrigation is often lower than expected, especially in mountainous and hilly areas with variable terrain

Method used

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  • Array-type drip irrigation control device capable of automatic feedback of soil humidity and control method thereof
  • Array-type drip irrigation control device capable of automatic feedback of soil humidity and control method thereof
  • Array-type drip irrigation control device capable of automatic feedback of soil humidity and control method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, the array type soil moisture automatic feedback drip irrigation control device includes a power supply part (i.e. a power supply unit), a soil moisture monitoring unit, a control unit, a solenoid valve and a drip irrigation pipe, and the power supply unit is connected with the soil moisture monitoring unit, the control unit, the The solenoid valve is connected, the soil humidity monitoring unit, the control unit, and the solenoid valve are connected in sequence, and the solenoid valve is connected to the drip irrigation pipe; the number of the soil moisture monitoring units is 16, and they are placed in the soil to be tested in an array distribution.

[0050] Such as figure 2 As shown, each soil moisture monitoring unit constitutes the soil moisture monitoring part, and each soil moisture monitoring unit includes a soil moisture sensor 1, 16 soil moisture sensors 1, and each soil moisture sensor 1 is distributed in an array structure to form ...

Embodiment 2

[0085] Other structures of this embodiment are the same as embodiment 1 except the following features: as Figure 4 As shown, each soil moisture sensor adopts a 4×4 monitoring array structure, and uses two electronic switches to select one of four to gate the soil moisture sensor 1 corresponding to the row and column, wherein the electronic switch control signal is controlled by the MCU control unit (that is, the micro controller), the signal line of the soil moisture sensor array adopts a star connection structure, that is, each row of soil moisture sensor 1 is connected to the microcontroller through a bus, and is connected to the A / D interface of the MCU control unit (ie microcontroller) Connected to provide soil moisture monitoring results.

[0086] Each soil moisture sensor 1 adopts a star-shaped signal line connection topology, which can meet the flexible deployment requirements of the array soil moisture sensor in the actual working environment.

Embodiment 3

[0088] The structure of this embodiment is the same as that of Embodiment 1 except for the following features: the number of soil moisture monitoring units is 64, that is, 64 soil moisture sensors 1 are included, and an 8×8 array distribution structure is adopted between each soil moisture sensor 1 .

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Abstract

The invention provides an array-type drip irrigation control device capable of automatic feedback of soil humidity. The array-type drip irrigation control device comprises a power supply unit, soil humidity monitoring units, a control unit, a solenoid valve and a drip irrigation pipe, wherein the power supply unit is connected with the soil humidity monitoring units, the control unit and the solenoid valve respectively; and the solenoid valve is connected on the drip irrigation pipe; a plurality of soil humidity monitoring units are arranged and distributed in the soil to be detected in an array manner. The invention also provides a control method of the array-type drip irrigation control device. The array-type drip irrigation control device capable of automatic feedback of soil humidity can be used for effective monitoring and estimation of the soil humidity condition and active drip irrigation of water and fertilizer, effectively improves the working efficiency, and reduces pointless waste of water and fertilizer.

Description

technical field [0001] The invention relates to the field of drip irrigation technology, in particular to an array type soil moisture automatic feedback drip irrigation control device and a control method thereof. The device uses an array of soil moisture sensors to monitor the soil moisture at different positions and depths and feeds back to the control device in real time. The control device according to The monitoring results automatically control the opening and closing of water and fertilizer drip irrigation without manual intervention. Background technique [0002] Water and fertilizer drip irrigation control technology can realize precise irrigation and fertilization in agricultural production, greatly improve the utilization rate of water and fertilizer, reduce labor intensity in production and capital investment of water and fertilizer. [0003] According to the soil moisture automatic feedback drip irrigation control technology, it can actively carry out precise wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D22/02A01G25/16A01G27/00
CPCY02A40/22
Inventor 徐兴洪添胜蔡坤岳学军麦康世李加念刘永鑫陈展云
Owner SOUTH CHINA AGRI UNIV
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