Solar-based constant-pressure water supply automatic control device for micro irrigation system

Abstract

The invention discloses a solar-based constant-pressure water supply automatic control device for a micro irrigation system. The device comprises a solar cell panel, charging and discharging management unit, a storage battery, a solar radiation intensity detection unit, a power supply circuit, an automatic water lifting control system, a water pump, a wireless communication module, a water storagepond, a water level detection unit and a small-power solar cell panel. A liquid level sensor YZ-YO-LAG1 is used to online detect the water level of the water storage pond which is built at a high position, and DP-60 is controlled according to the water level information to lift water into the water storage pond, and enable the water level of the water storage pond to be kept at a certain fixed height in the drip irrigation process to realize constant-pressure water supply. The water level detection information of the water storage pond and the start and stop of the DP-60 are transmitted and controlled wirelessly by the wireless communication module CC1100.

Description

Technical field [0001] The invention relates to an automatic control device for water supply, in particular to an automatic control device for constant pressure water supply of a micro-irrigation system based on solar energy. Background technique [0002] Micro-irrigation has the characteristics of water and fertilizer saving, labor saving, energy saving, and strong adaptability to soil and terrain. Micro-irrigation systems are increasingly widely used in the development of facility agriculture, water-saving agriculture, and ecological construction. , High-quality important technical means. In the process of micro-irrigation, the stability of water pressure or water flow in the pipeline has a significant impact on the uniformity of irrigation, especially on the fertilization performance of automatic fertilization devices such as Venturi fertilization devices and hydraulic drive fertilization devices. [0003] At present, some small and medium-sized orchards, greenhouses, nu...

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Problems solved by technology

In this regard, many researchers have also carried out related research, mainly focusing on the constant pressure irrigation system that adjusts the water output in real time according to the irrigation water demand and the constant pressure water supply system that provides stable water pressure for the irrigation pipe network in real time. The method of adjusting the frequency and speed of the water pump unit to achieve constant pressure control has achieved good practical application results. However, for micro-irrigation systems such as small and medium-scale orchards, greenhouses, and nurseries, the cost is relatively high and electricity is required. supply, thus limiting its applicability

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