植物生长LED照明控制系统的研究

发布时间：2018-03-03 13:19

本文选题：LED　切入点：TracePro建模　出处：《天津职业技术师范大学》2014年硕士论文　论文类型：学位论文

【摘要】：农业的生产活动与光有着密切联系，传统的农业照明光源有着效率低、高功耗、利用率低等缺点，寻找新型替代光源成为农业领域急需解决的问题。近些年LED技术飞速发展，LED红光、蓝光等大功率LED器件生产成本的下降，专家学者围绕LED光源在农业中应用，进行了不懈的研究，并取得了突破。LED光源相比与传统农业照明光源有寿命长、体积小、耗能低、波长固定与低发热等优点，而且LED光源光谱可配置能够满足植物生长需求。通过研究LED光源在农业上的应用，为LED植物生长照明光源的改进以及LED光源在植物培育以及现代农业生产中的的应用具有重要意义。根据目前我国植物生长LED照明市场的现状，植物生长LED照明技术相发展相对滞后，在前人研究的基础上，从植物生理学需光性分析出发，植物主要吸收红橙光(波长595nm~700nm)，，蓝紫光(波长370nm~435nm)用于光合作用。根据植物生长需求选用1W大功率LED器件。并运用TracePro软件建立LED植物生长灯模型，进行仿真观察植物生长LED控制照明系统在照度分布，光强分布上的特点。运用照度公式结合斯派罗法则计算确定符合均匀光照的LED灯间距。根据仿真结果以及计算结果设计LED植物生长照明模块。选用稳定高效的智能驱动IC，并结合STM32主控芯片移植嵌入式操作系统对所设计的LED植物生长照明系统进行手动调光以及模拟日升日落模式控制。将设计好的LED植物生长照明系统用于油菜培养实验，探求该LED植物生长照明系统在植物照明领域的效用，最终达到提升植物品质，降低植物培育的运行成本。通过手持光谱仪对该LED照明模块进行光谱测试与光照度测试，通过测试结果可以得知，植物生长LED照明系统的光谱范围与植物叶绿素吸收光谱范围完全吻合。功耗方面较传统农业照明灯具更低。在油菜的培育实验中可以看出，采用该照明系统培育出的油菜与自然光培育下的油菜基本无差别，从而说明该植物生长LED照明系统能够应用于植物生长照明领域。
[Abstract]:Agricultural production activities are closely related to light. Traditional agricultural lighting sources have the disadvantages of low efficiency, high power consumption, low utilization rate, etc. In recent years, the rapid development of LED technology has led to the rapid development of LED red light, blue light and other high-power LED devices production costs decline, experts and scholars around the LED light source in agriculture, This paper has made unremitting research, and has achieved the advantages of long life, small volume, low energy consumption, fixed wavelength and low heating compared with the traditional agricultural lighting source. And the spectrum of LED light can be configured to meet the needs of plant growth. By studying the application of LED light source in agriculture, It is of great significance for the improvement of LED light source for plant growth and the application of LED light source in plant cultivation and modern agricultural production. According to the current situation of LED lighting market in China, the development of plant growth LED lighting technology is lagging behind. Based on the previous studies, the light requirement of plant physiology is analyzed. The plant mainly absorbs red orange light (wavelength 595 nm) and blue violet light (wavelength 370 nm ~ 435 nm) for photosynthesis. According to plant growth requirement, 1 W high power LED device is selected. The model of LED plant growth lamp is established by TracePro software. The illumination distribution of plant growth LED controlled lighting system was observed by simulation. The characteristics of light intensity distribution. Using illumination formula combined with Spiro's rule to calculate the spacing of LED lamp with uniform illumination. According to the simulation results and calculation results, the LED plant growth lighting module is designed, and a stable and efficient lighting module is selected. It can drive ICs and transplant embedded operating system with STM32 master control chip to control the designed LED plant growth lighting system by manual dimming and simulating sunrise and sunset mode. The designed LED plant growth lighting system is used in rape culture experiment. The utility of the LED plant growth lighting system in the field of plant lighting was explored to improve the plant quality and reduce the operation cost of plant cultivation. The LED illumination module is tested by the hand-held spectrometer, and the results show that, The spectral range of plant growth LED illumination system is in good agreement with the absorption spectrum range of plant chlorophyll, and the power consumption is lower than that of traditional agricultural lighting lamps. In the experiment of rapeseed cultivation, it can be seen that there is no difference between the rape cultivated by this illumination system and the rape cultivated by natural light, which shows that the LED illumination system for plant growth can be applied to the field of plant growth lighting.
【学位授予单位】：天津职业技术师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM923.34;TP273

【参考文献】