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首页> 外文期刊>IEEE sensors journal >A Spectrally Tunable Smart LED Lighting System With Closed-Loop Control
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A Spectrally Tunable Smart LED Lighting System With Closed-Loop Control

机译：具有闭环控制的光谱可调智能LED照明系统

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摘要

Light emitting diodes (LEDs), with their ability to produce tunable light spectrums, present a significant opportunity to improve on existing lighting systems. They can be applied to smart and specialized lighting, which can be highly beneficial in the residential, commercial, and industrial sectors. In this paper, we present a novel closed-loop control algorithm with feedback from a spectral sensor, which allows the light output spectrum to converge toward a target spectrum. The control system was experimentally validated by the hardware implementation of a wireless smart lighting system with the eight tunable LED channels with different dominant wavelengths (450–650 nm) designed to cover a large portion of the visible light spectrum. Experimental results show a near perfect replication of target spectra, with an accuracy within 5% for the correlated color temperatures and Euclidean distances which fall well within a five-step unit circle.
机译：发光二极管（LED）具有产生可调光谱的能力，为改善现有照明系统提供了重要的机会。它们可以应用于智能和专业照明，这在住宅，商业和工业领域将是非常有益的。在本文中，我们提出了一种新颖的闭环控制算法，该算法具有来自光谱传感器的反馈，该算法允许光输出光谱向目标光谱会聚。该控制系统已通过无线智能照明系统的硬件实现进行了实验验证，该系统具有八个可调谐LED通道，这些通道具有不同的主波长（450–650 nm），旨在覆盖很大一部分可见光谱。实验结果表明目标光谱几乎完美复制，相关色温和欧几里得距离的准确度在5％以内，这些准确度落在五步单位圆之内。

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