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Analysis of High Luminance LED Beam Degradation using Color CCD Image

칼라 CCD 영상을 이용한 고휘도 LED 전구의 빔 열화 분석

  • Received : 2009.12.16
  • Accepted : 2010.04.13
  • Published : 2010.06.01

Abstract

VLC (Visible Light Communication) is a wireless communication method using light that is visible to the human eye. It has a major advantage that it causes no interference to RF-based devices. This makes wireless communication possible in RF hazardous areas such as nuclear facilities. In order to apply VLC communication in harsh environment of nuclear power plant, the high luminance LEDs, which are key components of the VLC communication, have been gamma-ray irradiated at the dose rate of 4kGy/h during 72 hours up to a total dose of 288 kGy. The radiation induced color-center was formed in the LED housing cap made of transparent plastic or acryl material. The beam degradations of high luminance LEDs by high dose-rate gammaray irradiation are analyzed using color CCD image processing technology.

Keywords

References

  1. B. J. Kaldenbach, "Assessment of wireless technologies and their application at nuclear facilities," NUREG/CR-6882, 2006.
  2. 이광대, "격납건물 누설시험 데이터 취득 장치 및 누설 평가 소프트웨어 개발," R-2002-O-285, 한국 전력 공사, 2006
  3. K. Korsah, R. Wetherington, R. Wood, L. F. Miller, K. Zhao, and A. Paul, "Emerging technologies in instrumentation and controls -an update," NUREG/CR-6888, 2006.
  4. S. Shimada and Y. Takeda, "Trends in visible light communication and application to ITS," Toshiba Review, vol. 64, no. 4, pp. 27-30, 2009.
  5. H. Hashomoto and A. Ogawa, "Optical wireless communications with LED traffic light systems," Proc. of the 27th Symposium on Information Theory and Its Applications, 2004.
  6. T. Hara, S. Iwasaki, T. Yendo, T. Fujii, and M. Tanimoto, "A new receiving system of visible light communication for ITS," Proc. of the 2007 IEEE Intelligent Vehicles Symposium, 2007.
  7. T. J. Collier, "interface requirements for process instrumentation for YGN 3&4 nuclear power plant," 10487-IC-IR870, Combustion Engineering Inc., 1994.
  8. Weed Instrument, "N4000R-99 series RTD temperature transmitter - nuclear qualified," http://www.weedinstrument.com
  9. T. Komine and M. Nakagawa, "Fundamental analysis for visible-light communication system using LED lights," IEEE Trans. Consumer Electronics, vol. 50, no. 1, pp. 100-107, 2004. https://doi.org/10.1109/TCE.2004.1277847
  10. 일본 기계공업연합회, "질화물계화합물 반도체 연계 기술전략지도 작성에 관한 조사보고서," 2006.

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