Greenhouse-environment light-supplementing system

The utility model relates to a greenhouse-environment light-supplementing system, which comprises a power-supply module, a detecting module, a control module, a light-supplementing module, an early-warning module and a user interacting module, wherein the on-off state of a relay is judged and controlled by the control module using a singlechip STC12C5A60S2 as a core by receiving a light-intensity value and a temperature acquired by the detecting module, and if both the environment light intensity and the temperature exceed a threshold value, a power supply is cut off and placed in a non-working state; otherwise, light supplementation is placed in a working state, and the brightness of a light-supplementing lamp group is controlled according to the required light-supplementing quantity, and on-demand intelligent and accurate light supplementation is realized; and in the utility model, a voltage-controlled chip PT4107 is utilized as a PWM (Pulse Width Modulation) control function in a driving module to realize the intelligent and accurate light supplementation, the influences of the temperature and different wave-band lines on the photosynthesis are fully considered, the on-demand wavelength-dividing quantitative light supplementation for plants is carried out according to the actual light-demanding quantities of various plants at different stages and in different environments, the utilization ratio of light energy is improved, errors are reduced, and meanwhile, the greenhouse-environment light-supplementing system has the characteristics of high response speed, simpleness in maintenance and flexibility in disposition.