효율적인 에너지 절감을 위한 센서 LED 스탠드 개발

Title
효율적인 에너지 절감을 위한 센서 LED 스탠드 개발
Other Titles
A Development of a LED Stand Using Illuminance Sensor for Efficient Energy Saving
Author(s)
천성용신지예박신원이화조이찬수
Keywords
Automatic Lighting Control; Illuminance Sensor; Energy Saving; LED Stand
Issue Date
201209
Publisher
한국조명.전기설비학회
Citation
조명.전기설비학회논문지, v.26, no.9, pp.1 - 7
Abstract
In this paper, we present a new lighting control method considering ambient light in addition to the required lighting illumination for efficient energy saving of a LED stand. We estimate accurate environmental illuminance using a cheap illuminance sensor by modeling measured- and actual- illuminance using quadratic polynomial approximation. The relation between PWM(Pulse Width Modulation) duty ratio and illuminance intensity is modeled by a linear model. Illumination of the LED stand is controlled by estimating the difference of required illumination and the estimated ambient illumination. The developed LED stand has reduced electric energy consumption compared with a conventional manually controlled LED stand with the same lighting source. In addition, human subject evaluation shows that the LED stand, which is applied the proposed method, is more satisfactory than conventional ones since the proposed automatic controlled illumination produce more accurately required lighting and it is convenient.
URI
http://hdl.handle.net/YU.REPOSITORY/27257
ISSN
1229-4691
Appears in Collections:
공과대학 > 전자공학과 > Articles
공과대학 > 기계공학부 > Articles
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