Multi-mode intelligent control system of greenhouse

Abstract

The invention discloses a multi-mode intelligent control system of a greenhouse. The multi-mode intelligent control system of the greenhouse comprises a single chip microcomputer, a conversion switch,an infrared remote controller, an environmental sensor and controlled equipment; the conversion switch, the infrared remote controller, the environmental sensor and the controlled equipment are connected with the single chip microcomputer; a power supply is connected to the single chip microcomputer and the controlled equipment through the conversion switch; the conversion switch is used for realizing dual power switching by the single chip microcomputer and mechanical manual control; the infrared remote controller controls the single chip microcomputer to realize two control modes includinginfrared remote manual control and automatic control according to a detection signal of the environmental sensor; the controlled equipment comprises a single-phase alternating-current motor and a three-phase alternating-current motor; and the single chip microcomputer controls the single-phase alternating-current motor and the three-phase alternating-current motor through a modular relay circuit.The multi-mode intelligent control system of the greenhouse in the invention has the modes of manual mechanical control, infrared remote control and intelligent automatic control; strong current can be controlled through weak current; in combination with different sensors, the functions of intelligent greenhouse irrigation, intelligent lighting, intelligent ventilation, intelligent temperature control and the like can be realized; and simultaneously, by adoption of modular design, the stability and the adaptation of the system are improved.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and relates to a multi-mode intelligent control system for greenhouses. Background technique [0002] Healthy cities have gradually become a global action strategy since the 1980s. The "Vegetable Basket" project has made great contributions to the construction of a healthy city. The production and supply of vegetables in greenhouses is not only related to the quality of life of residents, but also a major issue in the national economy and people's livelihood. However, for a long time, my country's greenhouse production has faced many challenges: [0003] (1) The temperature of the greenhouse is too high or too low, it is difficult to control, and it is not conducive to the degradation of pesticides, resulting in pesticide residues, causing harm to the soil and the ecological environment; [0004] (2) It is difficult for vegetables in greenhouses to reach a suitable state of light, wh...

AI Technical Summary

Problems solved by technology

[0003](1) The temperature of the greenhouse is too high or too low, which is difficult to control, and is not conducive to the degradation of pesticides, resulting in pesticide residues, which are harmful to the soil and the ecological environment;

[0004](2) It is difficult for vegetables in greenhouses to reach a suitable state of light, which affects the photosynthesis of plants, resulting in the lack of nutrients such as chlorophyll and vitamin C and the increase of nitrate content in vegetables , is not conducive to the health of residents;

[0005](3) The ventilation in the greenhouse is not good, and the mineral nutrient content of vegetables is insufficient;

[0006](4) The intelligence level of the greenhouse is too low, too much manual control, too much labor cost, and too low efficiency;

[0007](5) In terms of the circuit control of the greenhouse, the potential safety hazards of using strong current control are too great, the operation is inconvenient, the control flexibility is insufficient, the timeliness is not strong, and the control Accuracy needs to be improved

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