Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Development of Local Driving System for Flat LED Lamp Using Ultrasonic Sensors Array

초음파 센서 배열을 이용한 LED 면광원 부분점등 시스템 개발

  • 유성호 (숭실대학교 대학원 전기공학과) ;
  • 이정훈 (숭실대학교 대학원 전기공학과) ;
  • 염정덕 (숭실대학교 전기공학부)
  • Received : 2011.11.08
  • Accepted : 2011.12.06
  • Published : 2011.12.30
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Abstract

A method obtaining position data(x, y) of object accurately is proposed by using a pair of ultrasonic sensors composed of one transmitter and two receivers. And the driving system which controls the light of flat LED lamp locally using array of ultrasonic sensors (3 transmitters and 6 receivers) is developed. As a result, measured values of y are relatively reliable due to its small average of absolute errors of 1.03[cm]. The measured values of x have average error of 8.52[cm], and it is a large value. However, the average error is decreased by 0.65[cm] after applying algorithm for error correction. The experiments to control the light of flat LED lamp locally with algorithm for error correction are carried out. From the result, measured values of x with average error of 0.97[cm] are obtained and they are very good approximations of actual values.

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References

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Cited by

  1. Location Measurement method Depending on Reflection Characteristics of Ultrasonic Sensors for The Flat LED Lamp vol.27, pp.12, 2013, https://doi.org/10.5207/JIEIE.2013.27.12.038