Passive water-saving irrigation method and facilities thereof

Abstract

The invention discloses a passive water-saving irrigation method and facilities thereof. The method includes the steps that the step 1, threshold values for water supply and stop of the water supply are determined; the step 2, soil moisture contents like soil moistures are detected; the step 3, water is supplied when the soil moisture content is lower than the lowest threshold value; the step 4, signals receiving information are sent and received, and if the signals are not received, alarming and prompting are carried out; the step 5, the water content is recorded until the water content reaches the largest threshold value; the step 6, an instruction for stopping water supply is sent; the step 7, a single-chip microcomputer controls a valve to be closed, if a computer in a central control room receives the signals, the water supply is stopped; and if the signals are not received, the alarming and the prompting are carried out; the step 8, first-round control is stopped, and the step 1 is repeated when the soil moisture content is lower than the lowest threshold value. The passive water-saving irrigation facilities comprise a soil moisture content sensor part, the central control room part and an electric valve switching part. According to the passive water-saving irrigation method and the passive water-saving irrigation facilities, labor intensity is reduced, labor cost is saved, working environments are improved, accurate irrigation is achieved, water resources are utilized reasonably and efficiently, and waste and secondary pollution will not happen.

Description

Technical field: [0001] The invention relates to the field of water-saving irrigation for agriculture and gardens, in particular to a passive water-saving irrigation method and its facilities. Background technique: [0002] According to the results of the second national water resource assessment by the Ministry of Water Resources, the per capita water resource in my country is 2200m 3 At present, 16 provinces (autonomous regions and municipalities) have per capita water resources (excluding transit water) below the severe water shortage line, and 6 provinces and regions (Ningxia, Hebei, Shandong, Henan, Shanxi, Jiangsu) have per capita water resources Volume below 500m 3 . It is predicted that when my country's population increases to 1.6 billion in 2030, the per capita water resources will drop to 1750m 3 , the per capita water resources are only 1 / 4 of the world average. Moreover, the per capita water resources in many provinces and cities are far below the internatio...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing water-saving irrigation technologies are artificial water-saving irrigation. Intelligent water-saving technologies only use battery power to sense soil moisture and decide whether to irrigate, or to irrigate automatically at regular intervals. Most of them only consider soil conditions and do not consider the specific needs of plants. water condition

The existing remote control technology is mostly manual operation, and the degree of automation is not high

Most of the existing water-saving irrigation methods require personnel to be on duty at the site, the working conditions are difficult, the manpower consumption is large, and the manpower control is not precise enough

In addition, the existing wireless remote control needs to use ordinary batteries or pull a wire to collect in the field. Ordinary batteries themselves are polluting, and it is very inconvenient to pull wires.

[0004] In short, the common disadvantages of existing irrigation methods and facilities are the low degree of automation resulting in high labor costs and difficult working conditions. The existing intelligent control technology requires external energy to maintain work, while the control accuracy is not high, and water resources are seriously wasted.

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