Greenhouse soil temperature intelligent adjustment and control device

Abstract

The invention discloses a greenhouse soil temperature intelligent adjustment and control device. The greenhouse soil temperature intelligent adjustment and control device comprises a solar power generation module, a storage battery module, a power source switching module, a switching power source module and an electric heating wire module; the switching power source module and the power source switching module are connected with a single-chip microcomputer control module; the single-chip microcomputer control module is connected with a soil temperature sensor module and a communication module; a voltage sampling module is connected between the single-chip microcomputer control module and the storage battery module; and the communication module is connected with an upper computer. With the greenhouse soil temperature intelligent adjustment and control device of the invention adopted, soil temperature required by the growth of vegetables in different varieties and soil temperature required by different growth stages of vegetables in the same variety can be set, so that the soil temperature can better satisfy the needs of the growth of the vegetables; when solar generated power is insufficient, a 220V AC mains supply is turned on so as to carry out auxiliary heating; and according to an electric heating wire, a 0.6mm No.70 carbon alloy steel wire is adopted as an electrothermal conversion material, and is distributed to form an S-shape structure, and therefore, heat efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of temperature control, and in particular relates to an intelligent control device for soil temperature in a greenhouse. Background technique [0002] Greenhouses, also known as greenhouses, can transmit light and keep warm (or warm), and are facilities for cultivating vegetables and other plants. In seasons that are not suitable for vegetable growth, it can provide a greenhouse growth period and increase yield, and can be used for cultivation or seedling cultivation of warm-loving vegetables, flowers, forest trees and other vegetables in low-temperature seasons. The soil temperature in the greenhouse has an important influence on the growth of vegetables in the greenhouse. The root system grows in the soil, which requires high soil temperature. Generally, in the range of 10-30°C, as the temperature increases, the root growth speeds up and the absorption capacity increases; at 2-10°C, as the temperature inc...

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Problems solved by technology

[0005] The disadvantages of the above method mainly include: 1. Although there is also a main control module, the soil temperature cannot be automatically adjusted according to the type of vegetables and different growth periods, the function is simple, and there is no intelligence; Auxiliary heating function under certain circumstances; 3. The thermal efficiency of the graphite heating element is poor

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