浙江农业学报

• 生物系统工程 • 上一篇    下一篇

LED植物光源阵列光照分布及均匀性研究

  

  1. (1福建农林大学 机电工程学院,福建 福州 350002;2福州大学 机械工程及自动化学院,福建 福州 350108)
  • 出版日期:2015-08-25 发布日期:2015-08-21

Study on illumination distribution and uniformity for LED plant light source array#br#

  1. (1 College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 2 School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China)
  • Online:2015-08-25 Published:2015-08-21

摘要: 针对LED植物光源阵列在植物培养中光照分布的不均匀问题,通过理论推导,建立了红、蓝光相间布置的LED植物光源阵列的光照度分布及光照均匀度模型,以LJZWD植物光源阵列为例,对其光照度分布、光照均匀性变化情况进行模拟分析。结果表明:光源安装高度为143 cm时,可获得较好的光照均匀性,将照明区域缩小为光源阵列面积的81%时,光照均匀度可达到09以上,该研究对LED植物光源的安装与植物栽培区域的选择具有指导意义。

关键词: 植物光源, LED阵列, 光照分布, 光照均匀性

Abstract: According to uneven illumination distribution in plant cultivation, the light distribution model and illumination uniformity model of LED plant light source array with alternating distribution of the red and blue LEDs were established. Taking LJZWD plant light source array as an example, the light distribution and the change of illumination uniformity were investigated by the means of numerical simulation. The results demonstrated that it could obtain better illumination uniformity when lighting installation height was 143 cm than others, and the illumination uniformity could reach more than 09 if the lighting area decreased to 81% of the light source arrays. It has a guiding significance for the installation of the light source and the selection of plant cultivation area.

Key words: plant light source, LED array, illumination distribution, illumination uniformity