Integrated lighting ergonomics: A review on the association between non-visual effects of light and ergonomics in the enclosed cabins

Gou, Zhiming; Gou, Bingchen; Liao, Wenyi; Bao, Yuxue; Deng, Yongqi

doi:10.1016/j.buildenv.2023.110616

Cited by 10 publications

(2 citation statements)

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“…Another line of research explores systems capable of recognizing people within enclosed spaces and dynamically adjusting lighting accordingly (Simeon et al, 2018) [13]. Further investigations extend the scope, aiming to accurately locate human presence using diverse techniques (Gou et at, 2023) [14]. However, a research gap is discerned from this body of work, specifically related to triggering multiple power supplies based on a predetermined number of people and concurrently providing real-time counting capabilities (Rabbani, Yee, 2022) [15].…”

Section: Related Workmentioning

confidence: 99%

Energy-Efficient TRIZ-Inspired Paradigm to Automate Consumer Electronic Devices

Razaque,

Yoo,

Bektemyssova

et al. 2024

Preprint

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The ubiquitous problem of electrical energy waste is driven by human error, in which people regularly forget to turn off appliances when they leave a room, resulting in excessive consumption. The paper presents an energy-efficient TRIZ-inspired (EETRIZ) paradigm to automate consumer electronic devices in order to address this problem. Employing motion detection at entry and exit points, the system discerns room occupancy, effectively managing electrical appliances like lamps, fans, and air conditioners. The integration of theory of inventive problem solving (TRIZ) principles guides the ideation and design of an efficient switching mechanism. The system demonstrates that it is flexible by controlling multiple electronic consumer devices simultaneously. This paradigm can be used in a variety of environments, such as homes, offices, schools, and universities, and its goal is to reduce excessive energy use that results from human negligence. With an emphasis on economic viability and environmental impact, the proposed EETRIZ paradigm not only offers enhanced energy efficiency but also lays the groundwork for long-term sustainability practices, aligning with global efforts towards greener and smarter energy management. The proposed EETRIZ is implemented on C platform with support of MPLAB, Nuvoton 8051 Serie MCU Programming, GMPLibrary (GMP-5.1.1) and, Miracl Library. The proposed EETRIZ outperforms current state-of-the-art methods in terms of energy efficiency, cost-effectiveness, precision, and user-friendliness, according to hardware testing.

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Section: Related Workmentioning

confidence: 99%

Energy-Efficient TRIZ-Inspired Paradigm to Automate Consumer Electronic Devices

Razaque,

Yoo,

Bektemyssova

et al. 2024

Preprint

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“…With the discovery of the intrinsically photosensitive retinal ganglion cells (ipRGCs), the study of the biological effects of light has increased [13]. Night overtime work has a negative impact on circadian rhythm and mental health with the disturbance of internal rhythms also reducing performance and cognitive ability [14], leading to sleep problems, fatigue and decreased alertness [15]. Stimulation with bright light in the evening and at night (before the time of core body temperature minimum) could lead to the backward shift of the rhythm phase [16], while light rich in blue light in the morning was reported to induce the circadian rhythm phase to move forward and improve cognitive performance [17,18].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Nocturnal Lighting Stimuli on Melatonin, Sleep and Cognitive Performance of Workers in Confined Spaces

Wang,

Shao,

Hao

2023

Buildings

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Exposure to light during overtime work at night in confined spaces may disrupt the normal circadian clock, affect hormone secretion, sleep quality and performance, thereby posing great risks to the physical and mental health of night workers. Integrative lighting should be adopted to reduce the disturbance of normal physiological rhythm, while meeting the visual requirements of work. Through adjustable LED (CCT 6000 K/2700 K) and different vertical illuminance, five lighting patterns with different circadian stimuli (CS = 0.60, 0.30. 0.20, 0.10 and 0.05) were conducted, respectively, in a sleep lab using a within-subject design. Each lighting pattern lasted for 5 h every night. Eight healthy adults were recruited to complete the night work and their salivary melatonin, Karolinska sleepiness scale (KSS), Psychomotor Vigilance Task (PVT) and sleep quality were tested. The results showed that subjective sleepiness and melatonin concentration increased rapidly under low intervention (CS = 0.05) with the best sleep quality, while they decreased in high intervention (CS = 0.60) at night and led to significantly higher levels of sleepiness the next morning (p < 0.05). For the PVT, the middle intervention (CS = 0.30) showed the lowest response time and least errors (p < 0.05), suggesting that appropriate illuminance can improve visual performance. To reduce biorhythm disruptions, lower lighting stimulation is preferred during night work. For difficult visual tasks, high illuminances may not improve visual performance; just a slight increase in the existing lighting levels is adequate. Lighting interventions have a clear impact on sleep improvement and work capacity for those working overtime, and they may be translatable to other shift work scenarios.

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