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Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes

Energy saving and visual comfort are two main considerations in designing of automatic illumination control systems. However, energy-saving-oriented illumination control always causes optical spectra drifting in light-conversion-material-based white light-emitting diodes (WLEDs), which are conventio...

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Autores principales: Xiao, Hua, Wang, Guancheng, Zhang, Wenda, Lu, Sirong, Zhao, Bingxin, Wang, Zhanlang, Li, Yanglie, Liu, Jiada
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9610490/
https://www.ncbi.nlm.nih.gov/pubmed/36296120
http://dx.doi.org/10.3390/mi13101767
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author Xiao, Hua
Wang, Guancheng
Zhang, Wenda
Lu, Sirong
Zhao, Bingxin
Wang, Zhanlang
Li, Yanglie
Liu, Jiada
author_facet Xiao, Hua
Wang, Guancheng
Zhang, Wenda
Lu, Sirong
Zhao, Bingxin
Wang, Zhanlang
Li, Yanglie
Liu, Jiada
author_sort Xiao, Hua
collection PubMed
description Energy saving and visual comfort are two main considerations in designing of automatic illumination control systems. However, energy-saving-oriented illumination control always causes optical spectra drifting in light-conversion-material-based white light-emitting diodes (WLEDs), which are conventionally used as artificial luminaires in indoor areas. In this study, we propose a method for InP quantum dot (QD)-based WLEDs to minimize optical energy consumption by considering the influence caused by the outdoor environment and neighboring WLED units. Factors of (a) dimensions of room window and WLED matrix, (b) distance between WLED units, lighting height, species of InP QDs, and (c) user distribution are taken into consideration in calculation. Parameters of correlated color temperature (CCT) and color rendering index (Ra) of the WLED matrix are optimized according to the lighting environment to improve user visual comfort level. By dynamically controlling the light ingredients and optical power of WLEDs, we optimize the received illuminance distribution of table tops, improve the lighting homogeneity of all users, and guarantee the lowest energy consumption of the WLED matrix. The proposed approach can be flexibly applied in large-scale WLED intelligent controlling systems for industrial workshops and office buildings.
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spelling pubmed-96104902022-10-28 Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes Xiao, Hua Wang, Guancheng Zhang, Wenda Lu, Sirong Zhao, Bingxin Wang, Zhanlang Li, Yanglie Liu, Jiada Micromachines (Basel) Article Energy saving and visual comfort are two main considerations in designing of automatic illumination control systems. However, energy-saving-oriented illumination control always causes optical spectra drifting in light-conversion-material-based white light-emitting diodes (WLEDs), which are conventionally used as artificial luminaires in indoor areas. In this study, we propose a method for InP quantum dot (QD)-based WLEDs to minimize optical energy consumption by considering the influence caused by the outdoor environment and neighboring WLED units. Factors of (a) dimensions of room window and WLED matrix, (b) distance between WLED units, lighting height, species of InP QDs, and (c) user distribution are taken into consideration in calculation. Parameters of correlated color temperature (CCT) and color rendering index (Ra) of the WLED matrix are optimized according to the lighting environment to improve user visual comfort level. By dynamically controlling the light ingredients and optical power of WLEDs, we optimize the received illuminance distribution of table tops, improve the lighting homogeneity of all users, and guarantee the lowest energy consumption of the WLED matrix. The proposed approach can be flexibly applied in large-scale WLED intelligent controlling systems for industrial workshops and office buildings. MDPI 2022-10-18 /pmc/articles/PMC9610490/ /pubmed/36296120 http://dx.doi.org/10.3390/mi13101767 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xiao, Hua
Wang, Guancheng
Zhang, Wenda
Lu, Sirong
Zhao, Bingxin
Wang, Zhanlang
Li, Yanglie
Liu, Jiada
Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes
title Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes
title_full Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes
title_fullStr Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes
title_full_unstemmed Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes
title_short Automatic Illumination Control Method for Indoor Luminaires Based on Multichromatic Quantum Dot Light-Emitting Diodes
title_sort automatic illumination control method for indoor luminaires based on multichromatic quantum dot light-emitting diodes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9610490/
https://www.ncbi.nlm.nih.gov/pubmed/36296120
http://dx.doi.org/10.3390/mi13101767
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