Design of UVB-LED Lighting System to Support the office Worker’s Synthesis of Daily Vitamin D
Kyeong-Mi Kim1, Young-Won Kim2, Seung-Taek Oh3, Jae-Hyun Lim4
1Kyeong-Mi Kim, Department of Computer Science & Engineering, Kongju National Uiniversity, South Korea.
2Young-Won Kim, Smart Natural Space Research Center, Kongju National University, South Korea.
3Seung-Taek Oh, Smart Natural Space Research Center, Kongju National University, South Korea.
4Jae-Hyun Lim, Department of Computer Science & Engineering, Kongju National Uiniversity, Cheonan-Si, Chungcheongnam-do, South Korea.
Manuscript received on 08 May 2019 | Revised Manuscript received on 19 May 2019 | Manuscript Published on 23 May 2019 | PP: 1268-1276 | Volume-7 Issue-6S5 April 2019 | Retrieval Number: F12190476S519/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Vitamin D is supplied through skin synthesis by exposure to ultraviolet-B (UVB), as well as dietary intake, and plays a pivotal role in maintaining human health. Duration of exposure to UVB, however, has rapidly increased recently because of modern people’s excessive use of UV cream, type of clothes worn, and increase in duration of staying indoors. In this regard, this study suggests a UVB-LED lighting system to meet the daily target amount of vitamin D among office space occupants. The suggested system calculates the synthetic amount of vitamin D by sensing outdoor UVB through smart device and mobile application. When a user is indoors, the LED controller and lighting control application control the UVB-LED lighting after estimating the UVB-LED lighting service duration to synthesize the required amount of vitamin D through a comparison of the vitamin D amount met indoors and outdoors with the daily target amount of vitamin D. Afterwards, simulation was conducted to evaluate daily synthesis of vitamin D using a UVB-LED lighting system. The results indicate that people that spend a lot of time indoors can use a UVB-LED lighting service to synthesize vitamin D according to seasonal characteristics, type of outdoor activities, and time spent outside.
Keywords: UVB, Vitamin D, UVB-LED, LED Lighting Control System, UVB-LED Lighting Service.
Scope of the Article: Microstrip Antenna Design and Application