• Journal of information and communication convergence engineering
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• 제19권4호
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• pp.214-220
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• 2021

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.

• 조명전기설비학회논문지
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• 제27권9호
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• pp.23-35
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• 2013

In this study, we collected the emotion vocabulary novel related to the LED system light emotion and the existing terms through previous research, targeting professionals and KJ method, we selected emotion term of 35 kinds. Targeting this east Foreigner, we compared the emotion evaluation by changing the lighting elements in accordance office, meeting room, lounge, the OA room different behavior patterns. The results, showing the difference between the results of emotion existing research generally derived factors three axes "future, functionality" See, "stability", "activity". As a result of the comparison of the emotion of the East and the West, the Oriental, functional aspects of the LED system light of space office, meeting room, lounge is drawn most, On the other hand, Westerners, come up, stable surface shows the difference in accidentally. Based on these results, the future, and tries to utilized to evaluate the emotion reaction of the illumination elements each Test-Bed actual.

• 한국실내디자인학회논문집
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• 제23권6호
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• pp.78-86
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• 2014

Lighting in indoor space is being changed to system lighting converged with IT technology. Office space lighting with incandescent lamps and fluorescent lamps was completed through overall lighting plan by illumination in most cases, but convergence between LED lighting and IT technology enables the technology of responding to user requirements to be realized. Optical physical quantity suitable for humans and the lighting environment in accordance with user's sensibility, based on space function and user's behavior, would contribute to the improvement of service productivity, energy reduction, and enhancement of emotional satisfaction by providing user optimized lighting solution. Thus, user-customized system lighting guidelines to be applied with integration indicators of optics and sensibility are required. For the design elements required by users, environmental factors, product characteristics, optical characteristics, and sensibility factors are drawn from the design cases for office space and the survey, and the design check list and evaluation indicators are considered to reflect the requirements in the design and requirement indicators to give integrated satisfaction for optics and sensibility are developed. Purpose-centered design method from the user's viewpoint is applied to function-focused design through scenario, and it should be applied flexibly, as the new lightning design method solutions, to the concept design stage of space lighting design and device development. This paper, therefore, presents user-customized guidelines by pursuing the optics and sensibility evaluation and design method combining the requirement conditions and scenario, to be used for lighting content development and design.

• 조명전기설비학회논문지
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• 제21권6호
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• pp.8-18
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• 2007

본 연구는 급속히 고령화되는 현 사회와 그에 따라 증가하는 고령자 주거시설에 적용하기 위한 조명환경 계획의 방법론을 제시하는 것에 그 의의가 있다. 이를 위해 일차적으로 고령자의 심리 생리적 특성을 파악하고, 빛과 인간의 건강 감성의 관계에 관한 연구의 경향을 파악하였다. 또한 현재 고령자 주거시설의 조명현황을 파악하고 문제점을 분석한 후, 이의 개선을 목표로 고령자의 생리 심리적 특성을 고려한 고령자 주거시설 조명환경 계획의 방법론을 제시하였다. 그리고 고령자의 일일 생활패턴에 따른 시나리오를 구성하고, 이에 따라 제어가 용이한 인터페이스를 계획하였다.

• 조명전기설비학회논문지
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• 제27권3호
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• pp.95-99
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• 2013

The maximum power analysis simulator took advantage of the facilities and power consumption reduction simulator test scenario development and testing of improvement in the scenario. As a maximum demand power controller, Maximum power analysis simulator performs control and disperasion of maximum demand power by calculating base power, load forecast, and present power which are based on signal of watt-hour meter to keep the electricity under the target. In addition, various algorithms to select appropriate control methode on each of the light installations through the peak demand power is configured to management. The simulation shows the success of control power for the specified target controlled by five sequential lighting installations.

• 한국인터넷방송통신학회논문지
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• 제13권5호
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• pp.77-83
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• 2013

현재, 조명제어와 관리기술의 한계점은 유선으로 인한 시설비 과다, 운영의 어려움, 에너지낭비이다. 이를 해결하기 위해 조명기기에 무선네트워크 기능이 탑재된 스마트 조명 정보 시스템을 복합적으로 수행하기위한 통신 및 관리 소프트웨어가 필요하다. 본 논문에서는 LED조명의 전력량 모니터링을 통해 에너지 절감을 위한 기술을 개발하고, 이 기술을 융합하기 위해 전력 에너지 정보시스템 LEIS(Lighting Energy Information System)을 개발 했다. LEIS는 센서에 의해 지그비 메쉬망을 통해 수집된 전력 데이터를 모니터링하고 제어하는 시스템으로 조명의 사용에너지 정보를 사용자에게 시각화하여 보여준다. 이 시스템은 LEM(Lighting Energy Metering)의 정보를 바탕으로 한 전력정보 데이터베이스 및 LEIS 웹어플리케이션으로 구성되고 LEIS를 통해 에너지를 최적화하여 제어할 수 있는 시나리오 기능을 제공한다.

• 한국항해항만학회지
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• 제47권2호
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• pp.85-92
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• 2023

The hardware of an LED lighting control system for coastal lighting at coastal pier entrance consists of a power supply unit, an AVR control unit, a CLCD output unit, an LED control unit, a scenario selection switch unit, and an operation speed display unit. It is made of an 8-channel. The CPU used ATmega128 and the FET was used to control the current signal. To operate the CPU, DC 12V was converted to DC 5V using a regulator 7805. A heat sink was used to remove heat generated in the FET. By connecting the load LED module to the manufactured 8-channel LED lighting control system, the operation was confirmed through various production scenarios. In addition, a control system was designed to show the most suitable color for the atmosphere of the coastal pier according to the input value of temperature and illumination using a fuzzy control system. Computer simulation was then conducted. Results confirmed that fuzzy control did not need to store many data inputs due to characteristics of artificial intelligence and that it could efficiently represent many output values with simple fuzzy rules.

• 센서학회지
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• 제14권2호
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• pp.116-124
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• 2005

In this paper range measurement systems are designed using an ultrasonic sensor and a camera. An ultrasonic sensor provides the range measurement to a target quickly and simply but its low resolution is a disadvantage. We tackle this problem by employing a camera. Instead using a stereoscopic sensor, which is widely used for 3D sensing but requires a computationally intensive stereo matching, the range is measured by focusing and structured lighting. In focusing a straightforward focusing measure named as MMDH(min-max difference in histogram) is proposed and compared with existing techniques. In the method of structure lighting, light stripes projected by a beam projector are used. Compared to those using a laser beam projector, the designed system can be constructed easily in a low-budget. The system equation is derived by analysing the sensor geometry. A sensing scenario using the systems designed is in two steps. First, when better accuracy is required, measurements by ultrasonic sensing and focusing of a camera are fused by MLE(maximum likelihood estimation). Second, when the target is in a range of particular interest, a range map of the target scene is obtained by using structured lighting technique. The systems designed showed measurement accuracy up to 0.3[mm] approximately in experiments.

• 한국콘텐츠학회논문지
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• 제14권12호
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• pp.574-585
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• 2014

영화의 촬영이란 단순히 시나리오의 내용이나 인물의 행동을 화면에 옮기는 작업이 아니다. 촬영감독은 이미지를 통해 시나리오에 담긴 감정을 화면에 축적한다. 그 축적의 연속이 영화의 본질이다. 따라서 촬영감독은 끊임없이 시나리오를 해석하고 그것을 시각적으로 표현하기 위해 애쓰게 되는데 이러한 작업에서 가장 근본이 되는 것은 당연히 촬영 기술이다. 결국, 영화 촬영이란 기술을 수단으로 예술성을 드러내는 작업이므로 촬영의 가장 기본적인 기술적 요인을 살펴보는 것은 영화예술을 이해하는데 큰 도움이 된다. 인물의 감정을 드러내는 여러 기술적 수단이 있지만 그 중 조명이나 미술 등의 도움 없이 카메라 그 자체의 기능만으로 가장 간단하고도 유력하게 시도할 수 있는 것이 셔터의 활용이다. 그러므로 본 논문에서는 셔터의 활용에 대하여 기본적이면서 필수적으로 알아야 할 요인들에 대해 논의한다.

• 제어로봇시스템학회논문지
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• 제20권5호
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• pp.486-494
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• 2014

Intelligent homes consist of ubiquitous sensors, home networks, and a context-aware computing system. These homes are expected to offer many services such as intelligent air-conditioning, lighting control, health monitoring, and home security. In order to realize these services, many researchers have worked on various research topics including smart sensors with low power consumption, home network protocols, resident and location detection, context-awareness, and scenario and service control. This paper presents the real-time metabolic rate estimation method that is based on measured heart rate for human adaptive appliance (air-conditioner, lighting etc.). This estimation results can provide valuable information to control smart appliances so that they can adjust themselves according to the status of residents. The heart rate based method has been experimentally compared with the location-based method on a test bed.