• Title, Summary, Keyword: LED sensor luminaire

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A Design of an LED Sensor Luminaire for Visual Function Improvement (시각적 기능개선을 위한 LED 센서 등기구 설계)

  • Seo, Jung-Nam;Yu, Yong-Su;Yeo, In-Seon
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.59 no.1
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    • pp.134-137
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    • 2010
  • An LED sensor luminaire for visual function improvement necessitates the control algorithm for light level adjustment and the appropriate lens design. The control algorithm adapts to surround lighting condition, and thus has the advantages of energy saving and glare reduction. The multi-cell lens design improves color temperature uniformity and spatial light distribution of the luminaire. Experimental and simulated results show that this approach contributes noticeably to energy saving and color temperature uniformity of the LED sensor luminaire.

Development of Wireless Control System for High Power LED Luminaire Using Bluetooth Wireless Communication and Current Control System (Bluetooth 무선 통신과 전류제어 시스템을 이용한 고전력 LED 등기구의 무선제어 시스템 개발)

  • Lee, Wan-Bum
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.3
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    • pp.66-72
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    • 2016
  • An LED lighting control system was developed to combine information technology and LED lights for efficient management and energy savings. The system can monitor and control the status of an LED luminaire using Bluetooth wireless communication, sensor technology, and smart phones. An LED lighting control circuit was designed using a temperature sensor, illumination sensor, and Bluetooth module with a fuzzy constant-current control circuit. We extended the lifetime and prevented damage to the LED by optimizing the supply current of the LED luminaire based on the heat-generation temperature of $70^{\circ}C$ of an LED heat sink. We also automatically adjusted the ON/OFF time depending on the ambient illumination of the LED luminaire. By allowing easy control of the LED luminaires on a smartphone, we improved the efficiency and achieved energy savings. The control system was validated through experiments for normal operation.