LED LIGHTING SYSTEM FOR GREENHOUSES Russian patent published in 2019 - IPC A01G9/20 

FIELD: electricity.

SUBSTANCE: invention relates to lighting technology and can be used in greenhouses for electric lighting of plants in the process of growing vegetables, flowers, fruits, herbs and other agricultural products. System consists of LED phytoradiator 1 and unit 2 for controlling the intensity and spectral composition of the radiation. Phytoradiator is made of two groups of 3, 4 LEDs with an adjustable emission spectrum of each group of LEDs. Control unit of the intensity and spectral composition of the radiation is made of computer 7, data collection and control platform 8, analog-digital converter 10, digital-analog converter 9, illumination sensor and spectrum sensor. Input of the light sensor is connected to the first input of the analog-digital converter, the output of the spectrum sensor is connected to the second input of the analog-digital converter, the output of which is connected to the first input of the data collection and control platform connected by the first output to the input of computer 7, the output of which is connected to the second input of the data collection and control platform, which is connected to the second output with a digital-to-analog converter, the first output of which is connected to the input of first controlled driver 5 connected by the output to the input of the first group of LEDs, the second output of the digital-to-analog converter is connected to the input of the second controlled driver 6 connected by an output to the second group of LEDs. LED phytoradiator is made of two groups of LEDs, one of which is made of red, blue and ultraviolet LEDs, and the other - only of red LEDs. Each group of light emitting diodes of a phytoradiator is connected respectively to a separate adjustable driver, which are implemented on the basis of a controlled current source.

EFFECT: such implementation contributes to improving the energy efficiency and reliability of the lighting system, increasing yields and product quality, reducing the time it is received.

3 cl, 5 dwg