Multichannel light supplementation regulation and control method and system based on light demand differences of whole plants of crops
A control system and multi-channel technology, applied in the field of artificial light supplementation for plants, can solve the problems of affecting yield, reducing photosynthetic capacity, optimizing and other problems, and achieving the effect of avoiding continuous lighting and extinction, increasing light absorption rate, and strengthening photosynthesis.
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[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0036] In order to realize the multi-channel supplementary light regulation of the difference in light demand of the whole plant, the present invention must first obtain the light intensity thresholds of different leaf positions of the whole plant. The photosynthetic rate of plants in different growth stages and different leaf positions was measured by LI-6800 photosynthetic rate meter, and the light saturation point was obtained as the threshold of light intensity through the corresponding photosynthetic rate model. Then it is input into the control module by the keyboard of the user interaction module, so as to call the PWM feedback algorithm later.
[0037] The implementation module of the plant supplementary light technology is the supplementary light group, so the supplementary light group uniformly selects the LED array, which is cheap and has a small dri...
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