Light-operated roller blind device

Abstract

The invention discloses a light-operated roller blind device which comprises a light detector, a bidirectional motor, a first rolling shaft, a second rolling shaft, a differential and a single chip microcomputer. The light detector detects illumination intensity, and the single chip microcomputer compares detected illumination intensity with a set value, controls the control to rotate forwards to open a roller blind when the detected value is greater than the set value and controls the motor to rotate reversely to close the roller blind when the detected value is less than the set value. The first rolling shaft and the second rolling shaft are connected through the differential, so that different rotating speeds can be realized; two rotating speeds cooperate with each other to enable the left side and the right side of the roller blind to be different in rotating speed, so that needs on a special-shaped greenhouse are met.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a light-controlled roller blind device. Background technique [0002] Solar greenhouses are of great significance in agricultural development, and have played a huge role in providing off-season vegetables, shortening the growth cycle of crops, and greatly improving the survival rate of crops. Since the invention of the roller blind device, technological innovation has been continuously carried out and great development has been achieved. Most of the existing roller blind devices use manual or mechanical roller blinds. On the one hand, it is labor-intensive and time-consuming, and the labor efficiency is low. On the other hand, it cannot maximize the use of light and optimize the temperature and humidity in the greenhouse, so it is difficult to ensure the crops in the greenhouse. It is in the most suitable growth environment, so that it will have a greater impact on its future o...

AI Technical Summary

Problems solved by technology

Most of the existing roller blind devices use manual or mechanical roller blinds. On the one hand, it is labor-intensive and time-consuming, and the labor efficiency is low. On the other hand, it cannot maximize the use of light and optimize the temperature and humidity in the greenhouse, so it is difficult to ensure the crops in the greenhouse. In the most suitable growth environment, so that it will have a greater impact on its future output and products

[0003] In the existing technology, a two-way motor is usually used to control the opening and closing of the roller blind, but in some special-shaped greenhouses, due to the special shape, the left and right sides of the roller blind have different requirements for the speed of the rolling shaft, and the existing technology cannot meet the demand.

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