• Journal of the Korea Computer Industry Society
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• v.10 no.4
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• pp.153-158
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• 2009

This paper designed for natural lighting environment implementation with mixed color and white LED equipment. Lighting LED equipment Have a lot of advantage than traditional commercial lighting equipment. Such as high energy conversion efficiency and easy dimming control performance. This paper proposed LED lighting equipment with color sensor acquisition system can make best lighting environment for Human various kinds necessary.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.23 no.12
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• pp.23-30
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• 2009

LEDs are increasingly used for many applications including automotive, aviation, display, transportation and special lighting applications. Generally, the RGB multichip LED luminaire applied to signboard, emotional lighting system and display device and the white LED luminaire applied to general lighting system. white LED spectra for general lighting should be designed for high luminous efficacy as well as good color rendering. This paper describes characteristics of LED luminaire white LED and RGB multichip LED. Two type of LED luminaire prototype used experiment physical, electrical and optic test and performance analyzed. RGB multi-chip and phosphor-type white LED luminaire were analyzed by experiment on their color characteristics and luminous efficacy of radiation, distribution curve, and electrical characteristics. Research work is in progress to develop an improved performance for optic and electrical works well for two type of LED luminaires.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.219-220
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• 2010

This paper presents the development of LED lighting device monitoring system, Brightness control for LED lighting and Installation of lighting equipment to collect environmental data Intelligent LED lighting control system is presented.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.2
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• pp.666-671
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• 2016

This paper introduces a device providing close local lighting to the affected part, where the operation-purpose astral lamp alone cannot shed light directly, in an operation room of hospitals or clinics, which helps clinical doctors perform safe treatment of the affected part deep inside a human body. This medical assisting lighting is a device necessary to prevent fatal operation failures, which can occur with minute operation processes, such as tumor removal or angiorrhaphy. The components, such as the light source and power supply were designed to be low power consuming and small in size, have a narrow angle lens was used to increase the light spreading effect and focused illumination. The end-caps of the light transmission device using an optical cable and the lighting device were designed in the waterproof type to enable disinfection of these devices after use for the next patients. According to the measurement of the light source properties made after development of the retractor lighting device, the illumination intensity was 490 lux, the brightness was $11,550cd/m^2$, general color rendering index was 78, color temperature was 11,000K, and the intensity distribution was even, which were confirmed to be adequate for medical assisting local lighting.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.18 no.2
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• pp.12-28
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• 2004

디지털과 정보 통신 기술의 발달로 인하여 가정 내의 장치들이 홈네트워크로 연결되고 있다. 가까운 미래에는 집안의 모든 가전 기기와 조명 및 전기 장치들이 홈네트워크를 통하여 연결되어 제어되며, 다양한 서비스가 제공되는 디지털 홈이 구축될 것으로 전망된다 [1, 2, 3]. 이렇게 가정 내의 홈네트워크 장치가 보편화되어 서비스 제공자에 의한 다양한 서비스 제공이 가능하게 됨으로 인하여 홈네트워크 기술에 대한 관심이 매우 커지고 있는 추세이다. (중략)

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.1
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• pp.145-152
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• 2016

The usage of LED(Light Emitting Diode) has been rapidly increased and energy efficient management of LED light system is regarded as an important technology to enhance the energy efficiency. In this paper, we design and implementation of LED lighting controller which can control the LED lighting by using the wire and wireless communication technology based on the LAN(Local Area Network) and PAN(Personal Area Network). The implemented system can reduce the cost of LED lighting installing and avoids complicated wiring problem. And it is possible to minimize power consumption through automatic or manual LED control that they wished. In experimental results, the implemented LED lighting controller was satisfactory for all of the desired functions.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.3 no.4
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• pp.62-69
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• 1989

휴대용 전기톱을 비롯한 학습 기계장치, 자동차 연동장치, 각종 화학 분석장치 및 산업용 로봇 시스템등의 전기설비에 광범위하게 응용되고 있는 고유 불안정 도립진자 시스템의 동적 안정화 제어기 설계기법이 소개된다. 복잡한 비선형 동특성을 고려한 수학적 모델링과 C. D. Johnson에 의해 제시된 외란 적응 제어 이론을 적응하여, 최적 레귤레이터형 안정화 제어기를 설계하였으며, 컴퓨터 시뮬레이션 및 실험결과가 만족스럽게 나타났다.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2009.10a
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• pp.121-124
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• 2009

전 세계적인 에너지 절약 정책에 대응하여 새로운 고효율 LED 및 드라이버 IC의 출시가 활발하다. 단색 또는 칼라 LED를 사용하여 경관조명, 무대조명, 음악분수 등에 많이 활용되는데 다양한 전압 및 LED 구동 방식 등에 따라 LED의 수명과 비용이 달라질 수 있다. 또한 LED의 밝기 및 색상 등을 조절하여 멋진 연출을 위해 마이크로컨트롤러의 사용이 필수적이고, 다수의 장치를 함께 연동하는 경우에는 이들을 통신으로 연결하여 사용하는데, 본 논문에서 조명 장치에 표준으로 많이 사용하는 DMX512 통신 프로토콜, 몇 가지 정전류 구동 방식에 대해서 살펴보고, 저가격의 마이크로컨트롤러를 사용하여 DMX512 수신 장치를 구현해 보았다.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.7 no.6
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• pp.60-68
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• 1993

본 논문에서는 주차설비의 제어장치와 기계장치 설계와 시뮬레이터를 구현한다. 이 제어기는 다층각형순환식 주차설비 시스템의 제어에 적용될 수 있도록 한다. 또, 주차설비 제어장치의 정확한 동작을 확인할 수 있는 시뮬레이터를 개발한다. 시뮬레이터 개발의 목적은 기계장치 대신에 현장에 있는 기계장치와 제어 신호면에서 완전히 일치하는 시뮬레이터를 고안하여 실제 기계장치 없이 주차설비 제어장치의 개발에 도움을 줄 수 있게 하기 위한 것이다.주차설비의 성능평가 문제는 제한된 공간안에서 어떻게 많은 차를 적재하느냐 하는 문제와 시간적으로 얼마나 빨리 입,출고 시킬 수 있느냐에 달려 있다. 따라서, 주차설비의 입,출고 시간을 최소로 하는 시간최적 앨고리즘을 고안한다. 이 제어장치와 시뮬레이터는 모두 인텔 8086 CPU로 실현한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.6
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• pp.163-168
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• 2011

In this paper, we propose an emotion transfer system based on LED, which presents and transmitts users emotion through Bluetooth and ZigBee using LED light. We propose an emotional LED system interacting multiple LED lighting system and implement the proposed system using smartphone and WPAN network with Bluetooth and ZigBee. For the transmission of data, ZigBee is adopted for each LED lighting system and Bluetooth is utilized for the smartphone. Also, the LED lighting systems which are connected to smartphone have both ZigBee and Bluetooth module for the heterogeneous network. The implemented system shows the validity and applicability of the proposed system.