The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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A Design of Heat-Sink and DMX512 Communication Control for High-Power LEDs

고출력 LED 방열 및 DMX512 통신 제어 설계

  • 김기윤 (명지전문대학 공학.정보학부 전기과) ;
  • 함광근 ((주)닥터서플라이 기술연구소)
  • Received : 2013.06.17
  • Accepted : 2013.08.09
  • Published : 2013.08.30
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Abstract

Recently, various applications for LED lightings are growing continuously due to their better performances such as low power consumption, longer life time, operation speed, controllability, high quality color rendering, and sustainability. However, in developing the high-powered LEDs illumination system, heat-sink problem is one of the important obstacle. In this paper, a heat-sink design with multi-layered structure for high-powered LEDs is proposed, which is composed of metal core PCB, heat-pipes, heat-sink plates, and fans. And also, in this paper, a design for LED controls using DMX512 protocols through RS-485 communications is proposed, which is considered as de facto international standard in LEDs illumination control and is widely used in landscape lighting and stage lighting. In this paper, LED control and its application techniques are introduced and the method of wireless remote control for main controller is proposed.

최근 LED의 저전력, 장수명, 동작 속도, 제어성, 고품질의 색 연출성, 지속 가능성 등의 이유로, LED 응용 분야가 확대되고 있다. 그러나 고출력 LED 조명 시스템을 구현하는데 있어, 방열은 큰 걸림돌이 되고 있다. 본 논문에서는 고출력 투광등 설계를 위한 방열 방안으로 메탈 PCB 설계, 열전 소자, 히트 파이프, 방열판, 팬(fan) 등의 적층 연동 구조를 제안하고 구현 방안을 제시하였다. 아울러 본 논문에서는 RS-485 통신을 통한 DMX512 프로토콜 기반 LED 조명 시스템 제어 방안을 제시하였다. DMX512 프로토콜은 조명장치와 조명제어 모듈의 연결에 대한 사실상 세계적 표준이며 이를 활용한 무대 조명이나 경관 조명 시스템 개발이 지속적으로 이루지고 있다. 본 논문에서는 이를 이용한 LED 조명 제어 및 응용 기술을 소개하고 주제어기를 무선으로 원격 제어하는 방안을 제안하였다.

Keywords

References

  1. K. Y. Kim and K. K. Ham, "The technical trend of heat dissipation for high power LED flood light," in Proc. Korean Inst. Illuminating Elect. Installation Eng. (KIIEE) Spring Conf., pp. 214-217, Yongpyeong, Korea, May 2009.
  2. K. K. Ham, "A ultra-bright RGB LED lighting equipment using DMX512 in windows base," Korea Patent no. 20-0426291, Sep. 2006.
  3. W. S. Choi, C. H. Son, S. Y. Na, and Y. M. Kim, "Software implementation of wireless LED lighting control system using DMX512," in Proc. KICS Conf., pp. 14, Yongpyeong, Korea, Feb. 2011.
  4. J. I. Kim and B. H. Hwang, "Implementation of broadband LED lighting system using ZDMX modules based DMX512 protocol," J. Korea Contents Assoc. (KCA), vol. 10, no. 11, pp. 38-47, Nov. 2010. https://doi.org/10.5392/JKCA.2010.10.11.038
  5. S. H. Hwang and Y. L. Lee, "Study on thermal performance of multiple LED packages with heat pipes," J. Korean Soc. Mech. Eng. (KMSE), vol. 35, no. 6, pp. 569-575, June 2011. https://doi.org/10.3795/KSME-B.2011.35.6.569
  6. T. S. Jung and H. K. Kang, "A study on the heat pipe type cooling device for LED security lightings," in Proc. 8th Korean Soc. Technol. Plasticity (KSTP) Mold Fabrication Symp., pp. 221-226, Seoul, Korea, Sep. 2011.
  7. B. D. Kang, K. S. Park, and Y. K. Kim, "Performance of LED for headlamps using looped heat pipe system," Trans. Korean Soc. Automotive Eng. (KSAE), vol. 17, no. 6, pp. 54-60, Nov. 2009.
  8. S. Rittidech, N. Pipatpaiboon, and P. Terdtoon, "Heat-transfer characteristics of a closed-loop oscillating heat-pipe with check valves," Applied Energy, vol. 84, no. 5, pp. 565-577, May 2007. https://doi.org/10.1016/j.apenergy.2006.09.010
  9. Y. Zhang and F. Amir, "Advances and unsolved issues in pulsating heat pipes," Heat Transfer Engineering, vol. 29, no. 1, pp. 20-44, Jan. 2008. https://doi.org/10.1080/01457630701677114
  10. C. O. Kim and K. Y. Lim, "Implementation of DMX512 receiver using constant current LED driver," in Proc. Korean Inst. Illuminating Elect. Installation Eng. (KIIEE) Autumn Conf., pp. 121-124, Seoul, Korea, Oct. 2009.
  11. Entertainment Services and Technology Association, USITT DMX512-A: asynchronous serial digital data transmission standard for controlling lighting equipment and accessories, American National Standard E.11-2008, Apr. 2008.