A Study on the Proper Position of Illumination Sensor for Dimming Lighting Control Based on Practical Life : Focusing on Summer Solstice and Winter Solstice

Juil Park,Heangwoo Lee,Yongseong Kim 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.9

Due to recent increase in energy consumption of lighting, the energy consumption in the building sector is shown high, reaching 34% of total energy consumption. Although a variety of technologies have been on the rise and increased to which IT technology is applied as an alternative to reduce the lighting energy the lighting control technology for energy saving has been limited. And in investigation on existing previous studies, some nonconformities have been found out at the position of illumination sensor. So, in this study, there was derived each position of illumination sensor at the summer solstice and the winter solstice Although a variety of studies for lighting energy saving has been on the rise and increased due to increase in energy consumption of lighting in building sector they are carried out in a limited environment of technology development in the lighting energy. In an investigation on existing previous studies, it has been found out that the position of illumination sensor for control was derived on the basis of work surfaces and eye-level illumination, so in this study, it is intended to construct the foundation materials for lighting control after deriving the position of illumination sensor for dimming lighting control in real life. In this study, there was conducted a performance evaluation through the construction of test bed on a real life basis and the illumination range for lighting control was set to 400 lx on the basis of the KS A 3011. The conclusion is as follows. 1) At the summer solstice, S11 position 1,000mm away from a skylight is shown as a proper position of illumination-environmental collection for dimming lighting control. 2) At the winter solstice, the dimming lighting control is unnecessary, but S1~S3 positions within the range of 5,000mm~6,000mm are shown as proper positions of illumination-environment collection for dimming lighting control. 3) When generalizing the results shown at the summer solstice and the winter solstice, S11 position 1,000mm away from a skylight is shown as a proper position of illumination-environment collection for dimming lighting control. 4) As a result of effectiveness at S11position, energy saving can be attained by 16~44% compared to other positions, and the analysis is carried out effectively. Therefore, it is determined that in the future study it will be necessary to supplement by conducting a performance verification in accordance with illumination standards for lighting control and diverse time zones as well as lighting control positions.

철도차량용 Auto Light Sensor 적용 연구

유진규(Jinkyu Yu),곽호승(Ho Seong Gwak),김재기(Jae Gi Kim) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.11

철도 차량용 Auto head Light Controller는 외부의 밝기를 판단하여 철도차량의 전두부에 설치된 전조등을 자동으로 점등/소등시키는 장치이다. 무인자동운전 시스템을 적용한 철도차량의 경우에는 운전자가 차량에 탑승하지 않고, OCC에서 컨트롤하기 때문에 외부의 조도에 따라 전조등이 자동으로 점등/소등되는 철도차량용 Auto Head Light Controller의 개발이 요구되어져 왔다. 이런 요구사항에 부합될 수 있는 철도차량용 Auto Head Light Controller의 개발 및 적용이 이뤄졌기에, 본 논문에서는 철도차량에 적용되는 Auto Head Light Controller의 필요조건, Auto Head Light Controller의 시스템 구성 및 개발된 Auto Head Light Controller의 소개를 통해 설계에 도움이 되고자 한다. Auto head light controller for rolling stock automatically controls the headlight’s turn on/turn off depending on lighting intensity. The development of Auto head light controller for rolling stock has been needed for automated people mover. Therefore, the Auto head light controller for rolling stock is developed and applied to meet the requirements of automated people mover. In this paper, we will introduce developed Auto head light controller for rolling stock’s required condition, system configuration, application case.

An Efficient Automatic Control Algorithm for Intelligent LED Indoor Lighting

Sung-Il Hong,Chi-Ho Lin 한국정보통신학회 2015 2016 INTERNATIONAL CONFERENCE Vol.7 No.1

In this paper, we propose an efficient automatic control algorithm for intelligent LED indoor lighting. The proposed an efficient automatic control algorithm were included to elements such as daylight intensity measured through the PIR sensor and illuminance sensor at lighting style by the schedule defined and the occupancy detection. And it was controlled lighting through to the wireless sensor network, and was designed for the energy savings. Also, the lighting control of indoor lighting based on occupancy detection detect fine movements using a PIR sensor. And an unnecessary lighting intensity control of the window-side and the inside were controlled according to daylight level measurement result using the light sensor. In daylight inflow many case, the window-side lighting was to automatically darker, and in daylight inflow less case, was designed to be automatically bright. The efficiency validate results of an efficient indoor lighting automatic control algorithm for intelligent LED indoor lighting, the brightness of the indoor light were to maximize the energy saving by controlling in real time when entering as indoor a little that external lighting or daylight.

지능형 LED 실내조명을 위한 효율적인 제어 시스템

홍성일,윤수정,인치호,Hong, Sung-Il,Yoon, Su-Jeong,Lin, Chi-Ho 한국인터넷방송통신학회 2014 한국인터넷방송통신학회 논문지 Vol.14 No.6

본 논문에서는 지능형 LED 실내조명을 위한 효율적인 제어 시스템을 제안한다. 제안된 지능형 LED 실내조명을 위한 효율적인 제어 시스템은 스케줄 정의에 의한 조명 스타일과 재실 감지에 의한 조명 스타일에 PIR 센서와 조도 센서에 의해 측정되는 주광강도와 같은 요소를 포함시켜 무선 센서 네트워크로 점등제어를 하고 에너지 절감을 할 수 있도록 설계하였다. 또한, 재실감지에 의한 실내조명 점등제어는 PIR 센서를 사용하여 미세 움직임을 감지하고, 창측과 내측의 불필요한 조명 밝기 제어는 조도센서를 이용하여 주광의 수준을 측정하여 제어하였으며, 주광 유입량이 많은 경우 창측 조명은 자동으로 어두워지고, 적으면 조명이 자동으로 밝아지도록 설계하였다. 제안하는 지능형 LED 실내조명을 위한 효율적인 제어 시스템의 효율성 검증 결과, 외부 조명이나 주광이 조금이라도 실내로 유입되면 실내조명의 밝기를 실시간으로 제어하여 에너지 절감 효과를 극대화할 수 있었다. In this paper, we propose an efficient control system for intelligent LED indoor lighting. The proposed an efficient control system for intelligent LED indoor lighting were included to elements such as daylight intensity measured through the PIR sensor and illuminance sensor at lighting style by the schedule defined and the occupancy detection. And it was controlled lighting through to the wireless sensor network, and was designed for the energy savings. Also, the lighting control of indoor lighting based on occupancy detection detect fine movements using a PIR sensor. And an unnecessary lighting intensity control of the window-side and the inside were controlled according to daylight level measurement result using the light sensor. In daylight inflow many case, the window-side lighting was to automatically darker, and in daylight inflow less case, was designed to be automatically bright. The efficiency validate results of an efficient control system for intelligent LED indoor lighting, the brightness of the indoor light were to maximize the energy saving by controlling in real time when entering as indoor a little that external lighting or daylight.

Alternating Current Input LED Lighting Control System using Fuzzy Theory

Lee, Jae-Kyung,Yim, Jae-Hong The Korea Institute of Information and Commucation 2021 Journal of information and communication convergen Vol.19 No.4

In this study, we constructed several scenarios that are required for LED lighting, and we designed and implemented an LED lighting control system to operate these scenarios to confirm their behavior. An LED lighting control system is a hybrid control board that is designed by combining LED controllers and SMPS, consisting of an AC/DC power supply part that converts AC 220 V into DC 12 V, and a drive and control part that controls the scenario and color of the LED module. Conventional LED light controllers have an input power of DC 12 V, so when using the input AC 220 V, the SMPS must be connected to the LED light controller. To eliminate this inconvenience, a hybrid LED lighting control system was configured to combine LED lighting controllers and SMPS into one control system. Furthermore, we designed a control system to represent the most appropriate color according to the input of the distance and illumination using a fuzzy control system to conduct computer simulations.

AVR 기반의 LSDM 제어를 위한 효율적인 점등제어 시스템 설계

홍성일,인치호 한국ITS학회 2012 한국ITS학회논문지 Vol.11 No.5

본 논문에서는 AVR 기반의 LSDM 제어를 위한 효율적인 점등제어 시스템 설계를 제안한다. 본 논문은 LSDM 제어을 위한 효율적인 점등제어 시스템의 설계는 I/O 데이터 버스를 위한 신호 제어부와 동작 상태에 따른 클록 신호 제어를 위 한 타이머/카운터부로 구분하여 설계한다. LSDM 제어로직은 효율적인 제어신호 처리를 위하여 각 비트에 논리 값을 지 정하여 DDRx와 PORTx 레지스터를 최적화한다. 그리고 ATmega128의 점등제어 프로그램 실행에 의한 LSDM 제어신호는 제어로직을 동작시켜 LSDM 점등제어가 가능하도록 설계한다. 본 논문에서 제안한 점등제어 시스템은 전력 손실률 감소 효과를 입증하기 위하여, 호스트 PC에서 시리얼을 통해 점등제어 프로그램을 시스템에 다운로드하여 LSDM 제어로직의 점등 상태에 대한 전력 손실률을 측정하였다. 측정한 결과, 기존의 점등제어 시스템보다 제안한 점등제어 시스템은 전체 적인 전력 소모 감소 효과가 있음을 입증하였다. In this paper, we propose an efficient lighting control system design for AVR based LSDM control. This paper, an efficient lighting control system design for LSDM control be design divided as the signal control part for I / O data bus and the timer/counter part for clock signal control according to operating conditions. LSDM control logic be optimization to PORTx and DDRx register by specifying the logical value of each bit for effective control signal processing. And, the LSDM control signal by lighting control program execution of ATmega128 be designed to be LSDM lighting control by control logic operating. In this paper, a proposed lighting control system were measured to power loss rate to proved the power loss reduction about lighting status of LSDM control logic by download the lighting control program to system through serial from host PC. As a measurement result, a proposed lighting control system than the existing lighting control system were proved to be effective to the overall power consumption reduction.

무선 통신과 스마트폰을 이용한 LED 색온도 제어 조명 시스템에 관한 연구

홍영진(Young-Jin Hong),임순자(Soon-Ja Lim),이완범(Wan-Bum Lee) 한국산학기술학회 2017 한국산학기술학회논문지 Vol.18 No.11

현대 사회에서 조명은 인간 중심적인 자연 조명의 변화를 연출하고 에너지 소비 절감과 효율적인 관리를 위하여 IT 기술과 LED를 결합한 형태로 개발 되고 있다. 따라서 본 논문에서는 Arduino Due와 Bluetooth 및 Zigbee 무선통신 기술을 이용하여 3000K Warm LED와 6000K Cool LED로 구성된 LED 조명의 색온도 및 밝기를 제어할 수 있는 LED 조명 제어시스템을 제안하였다. Arduino Due는 Duty rate을 조절하여 조명의 색온도를 여러 단계로 조절 할 수 있도록 하였고, 1:N 다중통신이 가능한 Zigbee 통신을 이용하여 많은 조명을 제어할 수 있도록 하였다. 그리고 Bluetooth 통신을 이용하여 스마트 폰 어플리케이션으로 LED 조명을 손쉽게 제어할 수 있도록 하여 사용자의 편리성을 증대시켰다. 본 논문에서 구현한 무선통신 기반의 LED 조명제어 시스템은 3067K∼5960K의 다양한 색온도 제어와 조도 제어를 통하여 인간 중심적인 조명을 연출할 수 있을 뿐만 아니라 소비전력을 줄일 수 있어 자연 친화적인 조명 시스템으로 활용될 수 있을 것으로 사료된다. Lighting systems in modern society has been developed using a combination of IT technology and LED lighting for the purpose of bringing aboutchanges in human-centered natural lighting and to take advantage of the efficient management and energy saving of LED lighting. In this paper, we propose an LED lighting control system that can control the color temperature and brightness of LED lighting composed of 3000K Warm LEDs and 6000K Cool LEDs by using an Arduino Due and wireless communication technology such as Bluetooth and Zigbee. The Arduino Due allows the color temperature of the lighting to be adjustedin several steps by controlling the duty rate and enables many lights to be controlledusing Zigbee communication capable of 1: N multiple communication. By using Bluetooth communication, it is possible to easily control the LED lighting by means of a smartphone application, thereby enhancing the convenience for the user. The wireless communication based LED lighting control system implemented in this studycannot only provide human-centered lighting through its color temperature control from 3067K to 5960K and illumination control, but can also reduce the power consumption and be used as a natural-friendly lighting system.

에너지 절감을 위한 LED 조명 시스템 디밍 제어의 Mock-up 실증 실험 및 LCC 경제성 분석

김철호(Kim, Chul-Ho),박민경(Park, Min-Kyeong),강원희(Kang, Won-Hee),이광호(Lee, Kwang-Ho),김강수(Kim, Kang-Soo) 한국건축친환경설비학회 2020 한국건축친환경설비학회 논문집 Vol.14 No.3

We conducted a LED lighting system dimming control experiment by dividing a full-scale mock-up into two zones, a perimeter zone and an interior zone (2019.06-08). First, we replaced the fluorescent lamp of the existing lighting system with a high efficiency LED lighting system, and calculated the indoor daylight illuminance, LED artificial light distribution, and dimming rate (turning-on rate) for each control method. Second, we performed an LCC analysis according to the LED lighting system installation and control method. We selected the experimental case in accordance with the actual usage pattern. Case 1 was selected for full auto dimming control. Case 2 was selected for manual dimming control five times a day. Case 3 was selected for a switch on-off control that turned off between 12:00-17:00. For work plane illuminance of 500 lx during auto dimming control, the dimming rate was 70% (zone A_82%, zone B_58%) on average in clear sky, 60% (zone A_69%, zone B_51%) on average in intermediate sky, 51% (zone A_57%, zone B_44%) on average in overcast sky. The difference in dimming rates of auto dimming control (Case 1) and manual dimming control (Case 2) were 3% or less, and the value difference was small. By replacing the fluorescent lamp with a high efficiency LED lighting system and analyzing LCC for the control method, the break-even point of the LED auto dimming control was 11.5 years and the break-even point for manual dimming control was 7.6 years. Therefore, it is considered that the dimming control method is economically feasible.

LED 조명의 광원별 최소 분광분포를 사용하여 자연광 색온도를 재현하는 방법

김양수,오승택,임재현 한국인터넷정보학회 2023 인터넷정보학회논문지 Vol.24 No.2

Humans have adapted and evolved to natural light. However, as humans stay in indoor longer in modern times, the problem of biorhythm disturbance has been induced. To solve this problem, research is being conducted on lighting that reproduces the correlated color temperature(CCT) of natural light that varies from sunrise to sunset. In order to reproduce the CCT of natural light, multiple LED light sources with different CCTs are used to produce lighting, and then a control index DB is constructed by measuring and collecting the light characteristics of the combination of input currents for each light source in hundreds to thousands of steps, and then using it to control the lighting through the light characteristic matching method. The problem with this control method is that the more detailed the steps of the combination of input currents, the more time and economic costs are incurred. In this paper, an LED lighting control method that applies interpolation and combination calculation based on the minimum spectral power distribution information for each light source is proposed to reproduce the CCT of natural light. First, five minimum SPD information for each channel was measured and collected for the LED lighting, which consisted of light source channels with different CCTs and implemented input current control function of a 256-steps for each channel. Interpolation calculation was performed to generate SPD of 256 steps for each channel for the minimum SPD information, and SPD for all control combinations of LED lighting was generated through combination calculation of SPD for each channel. Illuminance and CCT were calculated through the generated SPD, a control index DB was constructed, and the CCT of natural light was reproduced through a matching technique. In the performance evaluation, the CCT for natural light was provided within the range of an average error rate of 0.18% while meeting the recommended indoor illumination standard. 인간은 자연 빛에 적응하고 진화해왔으나 현재는 실내 생활의 비중이 높아짐에 따라 생체리듬 교란의 문제가 유발되었다. 이의 해결을 위해 일출~일몰간 다채롭게 변화하는 자연광의 색온도를 재현하는 조명이 연구되고 있다. 자연광 색온도의 재현을 위해서는 색온도가 다른 다수의 LED 광원을 사용하여 조명을 제작한 후 수백에서 수천 단계의 광원별 인가전류의 조합에 대한 광특성을 측정 및 수집하여 제어지표 DB를 구성하고 광특성 매칭 방법을 통해 조명을 제어하였다. 이러한 제어 방법은 인가전류의 조합 단계를 세밀하게 할수록 많은 시간 및 경제적 비용이 발생한다는 문제가 있다. 이에 본 논문에서는 LED 광원별 최소 분광분포로 보간 및 조합 연산을 수행하여 자연광 색온도를 재현하는 방법을 제안한다. 먼저 색온도가 다른 광원 채널로 구성되고 각 채널별 256단계의 인가전류 제어 기능을 구현한 LED 조명을 대상으로 채널별 5개의 최소 분광분포(Spectral Power Distribution, SPD)를 실측·수집한다. 이후 수집한 SPD를 대상으로 각 채널별 256단계의 SPD를 생성하는 보간 연산을 수행하고, 채널별 SPD의 조합 연산을 통해 LED 조명의 모든 제어 조합에 대한 SPD를 생성한다. 생성된 SPD를 통해 조도와 색온도를 산출하여 제어지표 DB를 구축한 후 매칭 기법을 통해 자연광의 색온도를 재현한다. 성능 평가에서는 실내 권장 조도 기준을 충족하면서도 평균 오차율 0.18%의 범위 내에서 자연광의 시간별 색온도를 제공하였다.

ATMega128을 이용한 디지털/아날로그 자동조명제어장치의 개발

金?完(Dong-Wan Kim),朴成元(Sung-Won Park) 대한전기학회 2006 전기학회논문지 P Vol.55 No.4

In this paper, an automatic lighting control system is developed using microprocessor. The developed system consists of a digital lighting control unit, an analog lighting control unit, and a lighting control simulator. In the developed system, ATMega128 is used as the main controller. The developed digital lighting control unit consists of eight modules and the developed analog lighting control unit consists of six modules respectively. Additional, the developed simulator consists of a digital and an analog lighting control simulation using graphic user interface. And so this developed system can be applied to the controller design of the interior and exterior lighting equipment.