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)
  • 정영훈 (전남대학교 공과대학 전기공학과) ;
  • 송상빈 (전남대학교 공과대학 전기공학과) ;
  • 곽재영 (전남대학교 공과대학 전기공학과) ;
  • 여인선 (전남대학교 공과대학 전기공학과)
  • 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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