基于LED的菌类光响应测试系统设计

发布时间：2018-05-07 00:28

本文选题：菌类光响应 + LED　；参考：《西北农林科技大学》2017年硕士论文

【摘要】：光照对植物、菌类等生物的生长起着至关重要的作用,对作物干物质形成与积累、作物抗冻性等特性存在较大的影响。由于不同波段对菌类的生长效果存在差异,传统单波段定量阈值调控对菌类的生长无法实现最优效益,人工精准调光技术可有效改善菌类的生长光环境,实现菌类高效优质栽培和规模化优化生产。针对上述问题,本文设计一种基于LED的菌类光响应测试系统,系统由主控设备、LED驱动设备、光照检测设备组成,光照检测模块实现特定波段光照信息采集,主控设备实现对光照强度信息接收处理和LED驱动设备的按需控制,LED驱动设备实现微处理器至LED光源的控制信号放大与亮度控制,以期为探明食用菌光响应特性提供基础测试平台。本文主要完成的工作与结论如下:(1)为实现高效光环境调控,依据菌类所需设计光源强度可调的补光设备。通过选用LED驱动芯片,实现对控制信息放大;LED灯组排列串、并交错,实现菌类生长环境的光强均匀分布;不同菌类所需光质存在差异,相同菌类不同生长期下需光量也具有差别,设计红、黄、蓝、绿四种LED灯组作为补光灯;由于四种LED光源电气参数存在差异,设计四种不同驱动能力的LED驱动模块。(2)根据菌类光环境差异性需求,研发菌类特定波段光照度检测设备,实现对不同波段光源强度的定量检测。选用光照度传感器作为检测四种类指定波段光源强度的传感器,在光照度传感器表面贴附四种颜色的滤光片,实现特定波段光质的检测;四种类光源检测除滤光片不同之外,其余电气参数设置均相同。(3)通过在培养室内实地部署菌类光响应测试系统,开展系统有效性与节能试验验证。试验结果表明,系统可以长期部署于菌类栽培环境内,实现设施不同波段光照的按需调控。
[Abstract]:Light plays a vital role in the growth of plants and fungi, and has a great influence on the characteristics of crop dry matter formation and accumulation, and the frost resistance of crops. Due to the difference in the growth effect of different bands on the growth of fungi, the traditional single band quantitative threshold regulation can not achieve the optimal benefit for the growth of the fungus. Technology can effectively improve the growth light environment of bacteria, achieve high efficiency and quality cultivation and scale optimization of production. Aiming at the above problems, this paper designs an optical response test system based on LED, the system consists of main control equipment, LED drive equipment, light detection equipment, illumination detection module to realize the specific band light information collection, main. The control equipment realizes the reception processing of light intensity information and the on-demand control of the LED driving device. The LED drive device realizes the control signal amplification and the brightness control of the microprocessor to the LED light source, in order to provide the basic test platform for the detection of the light response characteristic of the edible fungi. The main work and conclusion of this paper are as follows: (1) in order to achieve the high efficiency of the light environment Control, according to the need to design the light intensity adjustable equipment of light source, LED drive chip is selected to enlarge the control information; the LED lamp group is arranged and interlaced to realize the uniform distribution of the light intensity of the fungus growth environment; the light quality of the different fungi is different, the light quantity of the same fungus in different growth period is also different, and the design red is also designed. Four kinds of LED lamp groups of yellow, blue and green are used as light lights. Because of the differences in electrical parameters of the four kinds of LED light sources, four kinds of LED driving modules with different driving abilities are designed. (2) according to the difference demand of the light environment of the fungus, the light illumination detection equipment of the specific band of the fungus is developed to realize the quantitative detection of the intensity of the light source in different bands. In order to detect four kinds of sensor with specified band light intensity, four kinds of filters are attached to the light sensor surface to detect the light quality in a specific band. The other electrical parameters are the same for the four kinds of light sources, except for the filter. (3) by deploying the light response test system in the cultured room, the system is carried out. The system effectiveness and energy saving test proved that the system can be deployed in the bacterial culture environment for a long time and realize the regulation of the light in different wavelengths of the facility.

【学位授予单位】：西北农林科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S646;TM923.34

【参考文献】