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Simultaneous optimization of circadian and color performance for smart lighting systems design
Energy and Buildings ( IF 6.7 ) Pub Date : 2021-09-09 , DOI: 10.1016/j.enbuild.2021.111456
M. Marín-Doñágueda 1 , F.J. Salgado-Remacha 1 , S. Jarabo 1 , V. Berdejo 1 , J.L. Tercero 2 , J. García Fernández 2 , P. Pajares San Gregorio 2
Affiliation  

We present in this work a method to design lighting sources that can be adapted to different temperatures of color and, simultaneously, with a tunable circadian character. We obtained an acceptable range of tuning in both parameters compared to the bibliography. This kind of lighting source has potential applications particularly in building lighting, but also in farming or agriculture. At the same time, we have shown the possibilities of multiobjective optimizations in the lighting industry. The optimization has been developed using the Genetic Algorithm and multiobjective merit functions. The lighting source is able to work under two different regimes regarding the circadian effect, with a design based on a combination of two monochromatic and two white Lighting Emitting Diodes (enough for controlling the circadian character and the color performance at the same time). A prototype, which can be manually or automatically controlled, has been also implemented and evaluated, with a performance in terms of color coordinates very close to the daylight, showing a modulation of the Circadian Efficacy of Radiation between 6% and 16%, and a Color Rendering Index above 80%.



中文翻译:

同时优化智能照明系统设计的昼夜节律和色彩性能

我们在这项工作中提出了一种设计光源的方法,该光源可以适应不同的颜色温度,同时具有可调的昼夜节律特征。与参考书目相比,我们在两个参数中都获得了可接受的调整范围。这种光源具有潜在的应用,特别是在建筑照明、农业或农业方面。同时,我们展示了照明行业多目标优化的可能性。优化是使用遗传算法和多目标评价函数开发的。光源能够在两种不同的昼夜节律效应下工作,采用基于两个单色和两个白色发光二极管组合的设计(足以同时控制昼夜节律特征和色彩表现)。还实施和评估了一个可以手动或自动控制的原型,其颜色坐标性能非常接近日光,显示出 6% 到 16% 的昼夜节律辐射效率的调制,以及显色指数80%以上。

更新日期:2021-09-20
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