Best water-saving irrigation method for radio monitoring soil moisture

A soil moisture and soil nutrient technology, applied in the field of wireless transmission technology, to achieve the effect of saving water, capital and labor

Inactive Publication Date: 2010-10-06
张德宏 +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

If flood irrigation is really good for crops, that's all right, but in fact this practice is the most fundamental cause of land salinization

Method used

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  • Best water-saving irrigation method for radio monitoring soil moisture
  • Best water-saving irrigation method for radio monitoring soil moisture
  • Best water-saving irrigation method for radio monitoring soil moisture

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Embodiment Construction

[0026] Please refer to the attached figure 1 and figure 2 As shown, the present invention is provided with a plurality of wireless monitoring network terminals 2, 3, 4, 5, a plurality of wireless execution terminals 1, 2 and a central control unit 1 in the irrigation field;

[0027] The sensor of the wireless monitoring terminal periodically monitors the soil of various soil types, quickly and accurately detects the volumetric moisture content of the soil, and calculates the value of the soil moisture, and the related sensors can also detect the soil nutrients, and obtain Nitrogen, phosphorus, potassium, organic matter and pH, salinity and humic acid content. The supporting software of the central control unit can flexibly set the sampling period and storage period of the parameters according to the needs, and adopt the principle of fuzzy control. Water irrigation method. The wireless execution terminal controls the water supply valve by controlling the solenoid valve to r...

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Abstract

The invention provides a best water-saving irrigation method by wireless soil moisture monitoring. In the invention, a central control unit is arranged, and a wireless monitoring terminal and a wireless execution terminal are arranged in an irrigation field to perform network communication with the central control unit. The wireless monitoring terminal is provided with a soil moisture sensor and a soil nutrition sensor, wherein the sensors transmit data of current soil humidity and nutrition to the central control unit; the central control unit transmits a water-supplying and nutrition-adding command to the wireless execution terminal according to the current soil condition; and the wireless execution terminal determines the water supply amount and supplies water according to the command. The whole process is performed automatically, so the method saves mass labor force, especially saving mass water resources.

Description

technical field [0001] The invention relates to automatic irrigation of farmland, gardens and soilless cultivation, in particular to a method for collecting soil moisture and nutrients through sensors and using wireless transmission technology to implement automatic irrigation. Background technique [0002] China is a country with severe drought and water shortage. The total amount of fresh water resources is 2.8 trillion cubic meters, accounting for 6% of global water resources, ranking fourth in the world after Brazil, Russia and Canada, but the per capita is only 2,200 cubic meters, which is only 1 / 4 of the world average. 1 / 5 of the United States, ranked 121st in the world, is one of the 13 countries with the poorest per capita water resources in the world. [0003] After deducting the difficult-to-use floods and groundwater resources scattered in remote areas, China's actual usable freshwater resources are even less, only about 1.1 trillion cubic meters, and the per cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/16G01N33/24
Inventor 张德宏韩旭
Owner 张德宏
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