감성과학 (Science of Emotion and Sensibility)

  • 제18권2호
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  • Pages.45-54
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  • 2015
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  • 1226-8593(pISSN)
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  • 2383-613X(eISSN)
한국감성과학회 (Korean Society for Emotion and Sensibility)
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에너지 저감과 업무 효율성을 위한 LED 조명환경 평가에 대한 연구

A Study on Evaluation of LED Lighting Environments for Energy Saving and Work Effectiveness

  • 김형선 (그린 에너지 기술연구소) ;
  • 임재현 (국립공주대학교 컴퓨터공학부) ;
  • 이기선 (국립공주대학교 신소재공학부) ;
  • 김길희 (국립공주대학교 건축학부) ;
  • 정희창 (영남대학교의료원 비뇨기과) ;
  • 김진호 (공주대학교 산업시스템공학과)
  • Kim, Hyung-Sun (Green Energy Technology Research Center) ;
  • Lim, Jae-Hyun (Department of Computer Science and Engineering, Kongju National University) ;
  • Lee, Kee-Sun (Division of Advanced Materials Engineering, Kongju National University) ;
  • Kim, Kil-Hee (Department of Architectural Engineering, Kongju National University) ;
  • Jung, Hee-Chang (Department of Urology, Yeungnam University Hospital) ;
  • Kim, Jin Ho (Department of Industrial and System Engineering, Kongju National University)
  • 투고 : 2015.02.10
  • 심사 : 2015.05.20
  • 발행 : 2015.06.30
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초록

본 연구에서는 LED 광원에 대하여 재실자의 업무 효율성과 에너지 저감 효과를 알아보기 위한 실험을 실시하였다. 이를 위해 LED 광원의 특성인 펄 스 폭변조(PWM, pulse width modulation)와 조도(lux)를 제어하여 총 9가지의 다양한 조명환경을 구성하였다. LED 조명의 펄스변조 비율은 각각 R:G:B=1:1:1, R:G:B=4:1:5, R:G:B=8:7:7으로 하였으며, 조도는 각각 400 lx, 700 lx, 1000 lx 으로 설정하였다. 또한, 실내환경은 온도 $20{\sim}24^{\circ}C$, 습도 50~60%, 착의량 1 clo 로 설정하였다. 각각의 주어진 9개의 조명환경에서 업무 효율성과 에너지 소비에 대해 분석하였다. 업무 효율성 분석을 위해 오류검색수정 작업을 실시하였으며, 에너지 소비 분석을 위해 각 조명환경에서 누적 소비전력을 측정하였다. 제안한 조명환경을 통해 실험한 결과, 업무 효율성은 400 lx 보다 700 lx 이상에서 정확도 및 소요시간의 효율이 좋았으며, 소요시간의 경우 제안한 펄스변조 R:G:B=8:7:7 에서 가장 좋은 효율을 나타냈다. 또한, 각각의 조도에 대한 소비전력은 펄스변조 R:G:B=8:7:7 > RGB=1:1:1 > R:G:B=4:1:5의 순으로 낮게 나타났다. 따라서, 본 논문에서 제안한 펄스 폭 변조 효과가 업무효율성 및 에너지 저감에 영향을 미치는 것을 확인할 수 있었다.

This study carried out an experiment to identify subject's work effectiveness and energy saving effect using LED light. Towards this end, this study configured nine various lighting environments in order to control PWM (Pulse Width Modulation) and illuminance (lux), which are the characteristics of LED light. The PWM ratio of LED light was set as R:G:B=1:1:1, R:G:B=4:1:5, and R:G:B=8:7:7, respectively, and illuminance (lux) was set as 400 lx, 700 lx, and 1000 lx, respectively. In addition, the indoor environment was set temperature $20-24^{\circ}C$, humidity 50%-60%, and the amount of clothing 1. This study analyzed work effectiveness and energy consumption in nine lighting environments, each. Error correction was performed for work effectiveness analysis, and cumulative power consumption was measured in each lighting environment for energy consumption analysis. According to experiment results through the lighting environments suggested in this study, accuracy and spent time effectiveness were good in 700lux and higher than 400lux. For spent time, the best effectiveness was revealed in the suggested PWM ratio, R:G:B=8:7:7. The lowest power consumption on each illuminance (lux) was revealed in the order of R:G:B=8:7:7, RGB=1:1:1, and R:G:B=4:1:5. Therefore, pulse-width modulation effect is proposed in this paper was found to affect the efficiency and energy saving.

키워드

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