Transactions on Electrical and Electronic Materials

  • 제12권6호
  • /
  • Pages.253-257
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  • 2011
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  • 1229-7607(pISSN)
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  • 2092-7592(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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Study of Modulation Effect in Integrated Interface Under Controlling Switching Light-Emitting Diode Lighting Module

  • Hong, Geun-Bin (School of Electrical Information Communication Engineering, Wonkwang University) ;
  • Jang, Tae-Su (School of Electrical Information Communication Engineering, Wonkwang University) ;
  • Kim, Yong-Kab (School of Electrical Information Communication Engineering, Wonkwang University, Research Institute of Engineering Technology Development, Wonkwang University)
  • 투고 : 2011.08.05
  • 심사 : 2011.11.15
  • 발행 : 2011.12.25
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초록

This study was carried out to solve problems such as radio frequency band depletion, confusion risk, and security loss in existing visible wireless communication systems, and to determine the applicability of next-generation networks. A light-emitting diode (LED) light communication system was implemented with a controlling switching light module using the ATmega16 micro-controller. To solve the existing modulation effect and disturbance in visible light communication, an integrated interface was evaluated with a driving light module and analyzes its reception property. A transmitter/receiver using the ATmel's micro-controller, high-intensity white LED-6 modules, and infrared sensor KSM60WLM and visible sensor TSL250RD were designed. An experiment from the initial value of distance to 2.5 m showed 0.46 V of the voltage loss, and if in long distance, external light interference occurred and light intensity was lost by external impact and thus data had to be modified or reset repeatedly. Additionally, when we used 6 modules through the remote controller's lighting dimming, data could be transmitted up to 1.76 m without any errors during the day and up to 2.29 m at night with around 2~3% communication error. If a special optical filter can reduce as much external light as possible in the integrated interface, the LED for lighting communication systems may be applied in next generation networks.

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참고문헌

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