The Influence Of Growth Of Edible Fungi LED Spectrum Control

In recent years, with the development of agricultural science and technology to improve the level and scale of the tissue, Industrialized production of edible fungus in China gradually developed, The growth process of edible fungi, light is a factor that cannot be ignored, The growth and development of edible fungus with different light quality has important influence, edible fungus and light mass with selective, best quality and different by different kinds of light.The researchers used luminescent material research and development to adapt to the plants absorb spectral composition of new type high efficiency and energy saving light source-the light emitting diode. LED is a semiconductor cold light source, a monochromatic visible light, it not only has the quality of pure, high light efficiency advantages, but also has the characteristics of rich wavelength, light intensity can be adjusted. Choice is helpful to the study of the biological characteristics of edible fungus light quality monochromatic LED light source, is the best source of light environment control used in edible fungus cultivation factory.In this paper, combining with new type of LED lights, the grouping experiment, different light irradiation on the mushroom growth of related research. Analysis of the working principle of LED controller, based on the technical requirements of edible fungi, to develop a AT89S52 microcontroller as the control core, the design scheme of constant current driving and controlling clock and other auxiliary control, revolves around scheme of further research. Paper first has carried on the design to the hardware of the controller, determine the system composition, focus on the main control board, clock module and the driving circuit is studied, and set the PWM dimming module, at the same time, the controller can realize automatic timing to adjust the illumination time, and other functions, can greatly improve the efficiency of LED lighting, alleviate the need for human in the factory, second, the software of the controller has carried on the elaborate design, using DS1302 clock chip timer interrupt function, LED lights off time, can be more accurate simulation environment for the growth of edible fungi. According to different light quality and light cycle affect the growth of edible fungi, has carried on the correlation analysis, develop and design a LED light source control device, can effectively promote the high quality and high yield of edible fungi in a factory environment.In order to work performance and feasibility of LED light intensity control device of the design are verified, application of this device irradiation comparison experiment, the growth of edible fungi by means of experimental data analysis results, Control device developed in this paper proved stable and reliable work, simple and convenient operation, to meet the requirements of the edible fungi for the LED light control technology, the effect of the LED light with different edible fungus research have positive reference value.