All-day wireless intelligent irrigation and fertilization system

Abstract

The invention discloses an all-day wireless intelligent irrigation and fertilization system. A soil temperature / humidity measuring instrument, a soil analyzer, a weather analyzer, an electric control valve, a wireless valve control device and a terminal wireless control device are electrically connected with a solar battery power supply device; the wireless valve control device and the terminal wireless control device are connected with a central receiving device through a wireless network; a fertilizer supply device and a water supply device are communicated with the electric control valve through a pipeline; the soil temperature / humidity measuring instrument collects the soil temperature and humidity data, the soil analyzer collects the content of elements for the growth of plants in soil, the weather analyzer collects the weather information, and the soil temperature / humidity measuring instrument, the soil analyzer and the weather analyzer send the collected data to a central control device through the terminal wireless control device respectively; and the central control device receives and processes the data to obtain a water supply and fertilization policy and sends the policy to the wireless valve control device to control the electric control valve to supply water and the fertilizer supply device to supply fertilizer. The system disclosed by the invention has the characteristics of flexible networking, saving of water and fertilizer, timely and convenient water supply and fertilization and all-day intelligent control.

Description

technical field [0001] The invention belongs to the technical field of automation, and relates to an all-weather wireless intelligent irrigation and fertilization system with flexible networking, water-saving and fertilizer-saving, timely and convenient water supply and fertilization, and all-weather intelligent control. Background technique [0002] my country is a large agricultural production country, and the demand for agricultural irrigation water is huge; and with the increase of urbanization rate, the water for greening has also increased sharply; in addition, with climate warming, frequent natural disasters, and pollution of water resources, available water Resources become more scarce. However, due to the backwardness of technology and management level, my country's agricultural and green irrigation water waste is very serious, and there is still a big gap from the world's advanced level, and the potential for water saving is great. In addition, due to the tradition...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned traditional manual observation, manual fertilization and irrigation not only have high maintenance costs, large manual observation errors, low control accuracy, but also difficult to guarantee timeliness

Secondly, the above-mentioned automatic irrigation control based on time intervals cannot irrigate and fertilize according to the actual needs of crops, but can only determine the amount of irrigation and fertilization based on human experience, which often results in excessive irrigation and fertilization, not only low water use efficiency, but also Excessive fertilizers can easily cause seedling burning or overgreening and late maturity to affect the seed setting rate; in addition, the above-mentioned automatic irrigation control is realized according to the soil water content and growth element content. Since the sensors and control valves are distributed in the field, not only the cable connection is complicated and The cost is high, and the later maintenance is difficult, the networking flexibility is poor and the mechanized operation is affected; in addition, the above formula is used to calculate the actual crop water demand based on the reference crop water demand and fertilizer demand. The evapotranspiration of green grassland with complete ground coverage and sufficient soil moisture generally refers to the water demand of alfalfa under this condition, because the water demand of this reference crop is not related to the actual crop variety, growth period, and soil condition. The same, but also affected by meteorological conditions, not only the measurement parameters are more, the peripheral equipment is complicated, the investment is large, the maintenance is difficult, but also the calculation is complicated, and the irrigation is difficult to be effective and accurate.

Among the various methods mentioned above, only partially solve the problem of how to irrigate and fertilize, but how to supply water and fertilizer effectively, reliably and intelligently, and how to comprehensively coordinate the amount of soil irrigation and fertilization according to soil moisture and weather, and can The problem of realizing all-weather control has not been solved, and some integrated technologies for automatic irrigation and fertilization still have limitations of poor precision and weak overall coordination

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