Plant light environment research method based on PWM signal intensity adjustment technology

Abstract

The invention discloses a plant light environment research method based on a PWM signal intensity adjustment technology, belongs to the field of plant light environment research methods, and providesthe plant light environment research method based on the PWM signal intensity adjustment technology. The method can adjust and control spectral composition, radiation intensity and radiation time within a certain range and can perform intelligent control. Researchers and experiment teaching personnel can adjust and control spectrum composition, illumination intensity of each spectrum section and illumination time length according to own test schemes, and various research and teaching requirements related to plant light environments are met. The device can be widely applied to various laboratories, teaching and scientific research test service platforms and test bases of agricultural disciplines, and light can be mixed through non-directional conduction of the light-guide fiber clusters andthen irradiate out through a protection lens, so that a test light source in the scheme is not easy to generate large chromatic aberration, and the test accuracy is not easy to influence.

Description

technical field [0001] The invention relates to the field of plant light environment research methods, and more specifically, relates to a plant light environment research method based on PWM signal intensity adjustment technology. Background technique [0002] Illumination is the primary driving force for plant growth and development, and is related to physiological metabolic processes such as photosynthesis, photomorphogenesis, substance metabolism, mineral and water absorption. Different light environments (light quality, light intensity, photoperiod) have an important impact on the growth and development of plants. Existing studies have shown that different types of plants and the same type of plants require different light environments at different growth stages. There are many types of plants, and the light environment of plants has both qualitative attributes and quantitative attributes. Therefore, light environment regulation is a very complex research field that re...

AI Technical Summary

Problems solved by technology

Although these light sources can also achieve a certain spectrum allocation, the same system or device cannot simultaneously control the spectrum segment, the radiation intensity of each segment and the radiation time.

Can not meet the needs of plant light environment research and technology development

Moreover, at present, in order to set up different plant light environments in terms of spectral composition and radiation intensity, it is necessary to configure many different light sources. The manpower and material resources invested are very large, and it is difficult to repeat similar experiments. The versatility is poor and the utilization rate is extremely low. At the same time, through the existing test light sources, when carrying out the plant light environment test, there are many external interference factors, and it is difficult to manually adjust the spectrum, radiation intensity, and radiation time. In addition, the detection and performance of environmental parameters The recording of consumption and other data is laborious and time-consuming

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