Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07g
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- Pages.3156-3158
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- 1999
Adjustment of delay time of occupancy sensor using normal distribution
정규분포를 이용한 재실감지 센서의 시간지연 설정
- Jeong, Young-Hoon (Dept. of Electrical Engineering, Chonnam National University) ;
- Song, Sang-Bin (Dept. of Electrical Engineering, Chonnam National University) ;
- Gwark, Jae-Young (Dept. of Electrical Engineering, Chonnam National University) ;
- Yeo, In-Seon (Dept. of Electrical Engineering, Chonnam National University)
- Published : 1999.07.19
Abstract
Occupancy sensor is a efficient light control system which light on/off automatically and reduces the unnecessary power waste. From now the research on occupancy sensor is restricted to the selection of the appropriate place or sensor. Exist occupancy sensor changes the delay time by manually to the place or situation, so it is unreliable. The delay time can been changed by the average time of the occupied and the preset time, but it is not enough to reliable. In this paper, so to acquire the reliance the average and the standard deviation of the occupied time change the delay time automatically and protect the malfunction from the detector. And to embody it, AT89C52 microcontroller is adopted to the control circuit. It is verified by simulation and experiment results of output characteristic for randomized input.
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