Intelligent supplementary lighting method and device for solar greenhouse

Abstract

The invention discloses intelligent supplementary lighting method and device for a solar greenhouse. A horizontal rotary main shaft parallel to a rear vertical wall is disposed in front of the rear vertical wall. The rear end of a horizontal support is rotatably connected to a fixed support through a pin. The front end of the horizontal support is connected to one end of the rotary main shaft. The rotary main shaft is capable of rotating around its axis. Two reflecting film fixing and clamping plates are fixedly connected to two ends of the rotary main shaft. A reflecting film is fixedly connected between the two reflecting film fixing and clamping plates. A reflecting face of the reflecting film is a convex face. A motor controller automatically calculates to obtain optimal operational rotation angle of the reflecting film so as to control the rotation angle and rotation direction of a motor. The motor drives the rotary main shaft to rotate so as to drive the reflecting film to rotate, and accordingly the rotation angle of the reflecting film is adjusted to enable reflected sunlight to irradiate a planting area of the solar greenhouse constantly, real-time intelligent regulation of the supplementary lighting device is achieved, and accuracy in light supplement for the planting area of the solar greenhouse is guaranteed.

Description

technical field [0001] The invention relates to the technical field of solar greenhouses, in particular to an intelligent method and device for supplementing light in a solar greenhouse. Background technique [0002] In most areas of northern my country, especially in areas with intensive agricultural production and planting between 35° and 45° north latitude, solar greenhouses are widely used as the main agricultural production facilities. However, in the three seasons of spring, autumn and winter in northern my country, the intensity and duration of solar radiation are generally low. Less light time and light intensity will affect the normal growth of crops in the solar greenhouse. In order to improve the light conditions in the solar greenhouse, it is necessary to take a suitable way to supplement the light for the crops in the greenhouse. [0003] At present, there are two main technical solutions for supplementary light in solar greenhouses: one is natural supplementa...

AI Technical Summary

Problems solved by technology

This kind of greenhouse external-mounted reflective curtain includes at least one reflective plate, fixing device and bracket arranged above the greenhouse. The reflective curtain uses the way of reflecting solar energy to add light to the greenhouse. However, the building height of the ridge of the solar greenhouse is usually more than 2.6 meters. This kind of greenhouse external reflective curtain is installed above the outside of the greenhouse, and its structural size must be much larger than the size of the greenhouse, thus greatly increasing the manufacturing cost of the reflective curtain, and the higher installation position and the exposed reflective curtain, Affect the lighting of the solar greenhouses in the back row, or increase the distance between the greenhouses, reduce the land utilization rate, and at the same time have adverse effects on the stability, operation and maintenance of the device, and the effect of increasing light, and ultimately reduce the cost performance and actual operation effect of the device

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