LIGHT ENVIRONMENT FORMATION SYSTEM FOR INDOOR PLANTS Russian patent published in 2023 - IPC A01G9/26 

FIELD: closed crop production.

SUBSTANCE: invention relates to lighting systems for greenhouses, phytotrons or grow boxes. The system includes multispectral phytoirradiators, a control unit for the intensity and spectral composition of radiation from multispectral phytoirradiators, made on the basis of a computer with a platform for data collection and control, and a spectrum sensor. Each multispectral phytoirradiator comprises groups of LEDs and drivers implemented on the basis of controlled current sources to control the intensity of LED radiation. The spectrum sensor output is connected to the first input of the data collection and control platform, the first output of which is connected to the computer input, the output of which is connected to the second input of the data collection and control platform. The first and second wireless data transmission modules are introduced into the system. The control unit for the intensity and spectral composition of radiation from multispectral phytoirradiators comprises additional spectrum sensors. The output of the additional spectrum sensor is connected to the input of the data acquisition and control platform. Each multispectral phytoirradiator comprises K=4 port controllers, a central controller, current meters and a memory block. The third output of the data collection and control platform is connected to the input of the first wireless data transmission module. In each multispectral phytoirradiator, the outputs of K port controllers are connected to the corresponding inputs of the central controller, the input of which is connected to the output of the memory block, the input of which is connected to the output of the central controller, the first outputs of which are connected to the inputs of the corresponding LED emission intensity control drivers, the outputs of which are connected to the inputs of the corresponding current meters, the first outputs of which are connected to the inputs of the corresponding groups of LEDs. The second output of the current meter is connected to the input of the central controller. The second output of the data collection and control platform is connected to the input of any of the port controllers of any of the multispectral phytoirradiators. The output of the second wireless data transmission module is connected to any free input of any of the port controllers of any of the multispectral phytoirradiators. The remaining inputs of the port controllers of any of the multispectral phytoirradiators are interconnected so that for any of the multispectral phytoirradiators the input of at least one of any port controller is connected to the input of any one port controller of any other multispectral phytoirradiator. The inputs and outputs of all port controllers and the first K inputs of the central controllers of all multispectral phytoirradiators are bidirectional.

EFFECT: improved reliability, accuracy of maintaining the optimal spectrum for a long period and an extension of the field of application.

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