• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.292-295
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• 2003

Moire topography method is a well-known non-contacting 3-D measurement method. the automatic 3-D measurement by moire topography has been required since the method was frequently applied to the engineering and medical fields. 3-D measurement using digital projection moire topography is very attractive because of its high measuring speed and high sensitivity. In this study, digital two-wavelength phase shilling moire is applied to the entertainment fields. recently. as promoting the growth of the VR-Game, display devices which attract public attention such as HMD or Projector are being appeared in order to deliver effectively the absorption sense. this study realized the Auto-calibrating system for arbitrary display surface using digital moire method which satisfied the shape measurement of display surface and the request of FOV(Field of View) output. also when large screen wasn't prepared, this auto-calibrating system was applied to enjoy games or movies at home with a projector and walls

• 패션비즈니스
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• 제25권4호
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• pp.125-140
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• 2021

Recently, flexible displays have been used as part of fashion beyond the concept of parts for electronic products. The flexible display applied to wearable fashion products flexibly bends according to the wearing position of the human body and, at the same time, decorates the fashion product more splendidly through the screen on which images or videos are displayed. Flexible displays, which are used for clothes and accessories, combine analogue fashion sensibility with digital screens to create a new level of convergence product design and expand the range of fashion design and fashion materials. This study aims to analyze the trends of the development and commercialization of fashion products that use flexible displays. As a research method, theoretical research and empirical research through case analysis were conducted in parallel. First, as a theoretical study, the morphological and technical characteristics of flexible displays were examined. Through theoretical studies, the effect of the characteristics of flexible displays on the development of wearable fashion products was investigated. Second, as an empirical case study, the design of wearable fashion products using flexible displays over the past 10 years and the characteristics of the displays used in the products were analyzed. Based on the characteristics analyzed, the product design, display and product integration methods and the commercialization stages of wearable fashion products using flexible displays were analyzed.

• 한국지능시스템학회논문지
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• 제17권5호
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• pp.712-717
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• 2007

홈 서버와 가정용서비스 로봇, 다양한 Device를 포함하는 홈 네트워크 시스템을 이용하여 가정환경 내에서 발생 가능한 다양하게 분산된 임무들을 수행하는데 있어서 Multi-Agent 시스템을 응용하는 것은 효율적이라고 알려져 있다. 이러한 시스템에서 휴먼 인터페이스와 물리적 서비스 제공의 중추 역할을 하는 것은 바로 지능형 서비스 로봇이다. 따라서, 기존의 Multi Agent System을 응용하여 Multi Agent Robot System을 정의할 수 있다. 가정이라는 'open'된 특성의 환경에서 Multi Agent Robot System이 사용자에게 좀 더 효율적인 서비스를 제공하기 위해서는 존재하는 모든 Agent 간의 유기적인 정보교환과 협력이 필요하다. 이것을 위하여 자율구동하며 사용자에게 물리적 서비스를 제공할 수 있는 다수의 로봇들을 Agent로 정의하고, 로봇 Agent간의 통신과, 로봇 이외의 Agent로써의 역할을 감당할 수 있는 홈 서버 등의 Agent와 로봇 Agent들의 통신을 사용자 interface에 직접 표현할 수 있는 시뮬레이터를 설계, 제시한다.

• Current Optics and Photonics
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• 제1권2호
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• pp.90-94
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• 2017

Visible light identification (VLID) is a user identification system for a door lock application using smartphone that adopts visible light communication (VLC) technology with the objective of high security, small form factor, and cost effectiveness. The user is verified by the identification application program of a smartphone via fingerprint recognition or password entry. If the authentication succeeds, the corresponding encoded visible light signals are transmitted by a light emitting diode (LED) camera flash. Then, only a small size and low cost photodiode as an outdoor interface converts the light signal to the digital data along with a comparator, and runs the authentication process, and releases the lock. VLID can utilize powerful state-of-the-art hardware and software of smartphones. Furthermore, the door lock system is allowed to be easily upgraded with advanced technologies without its modification and replacement. It can be upgraded by just update the software of smartphone application or replacing the smartphone with the latest one. Additionally, wireless connection between a smartphone and a smart home hub is established automatically via Bluetooth for updating the password and controlling the home devices. In this paper, we demonstrate a prototype VLID door lock system that is built up with LEGO blocks, a photodiode, a comparator circuit, Bluetooth module, and FPGA board.

• 한국실내디자인학회논문집
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• 제14권5호
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• pp.226-235
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• 2005

Since the late 20th century, digital technology has changed our environment in many ways. The representative advanced homes today embed digital facilities such as a sensor infrastructure, a networking system, and ubiquitous display. In this point of view, this study was intended to define the apartment residents' diverse needs for digital home design. The subjects are 400 wives who live in Busan. The findings are as follows; (1) The factors of the housing activities are extracted as 'guest hosting,' 'family entertaining,' 'digital network,' 'daily domestic affair,' 'non-daily domestic affair,' 'media using,' and 'bathing & exercising' activities. (2) The 'digital network activities' occurred more frequently in the households with non-employed wife and preschool children, and with employed wife and preschool and elementary school children. (3) The factors of the digital home system were extracted as 'safety & maintenance,' 'health & convenience,' 'educational & housekeeping,' and 'cultural & entertaining' systems. (4) The needs of non-employed wives for the safety & maintenance and the educational & housekeeping systems are varied by family life cycle and wife age. While, the needs of employed wives for the educational & housekeeping and the culture & entertaining systems are varied by dwelling-size and wife age.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2001년도 춘계학술발표대회 논문집
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• pp.106-111
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• 2001

Model house play an important role in the sale of apartments. However, model house can create social and environmental problems. Virtual reality's (VR) use for the creation of model house has been studied as a possible counter measure to these problems. Existing models don't satisfy consumers' queries. A virtual model house can give the experience of seeing a real home through simulation. Also, a virtual model house can allow a home buyer to change the furniture on display or the color of the walls to reflect the consumer's taste in the construction. The internal present condition system using absorption style virtual reality and open style virtual reality are the indispensable tools that are going to take the place of the current model home. A virtual model house is more profitable than a physical model house because of reduced costs and time savings. In addition, a virtual model house can offer new kinds of information that a physical model home can not. This study's purpose is to discuss the desired direction of the virtual model house in this crucial and dynamic period of development.

• 한국전자통신학회논문지
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• 제6권4호
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• pp.505-509
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• 2011

홈 네트워크 시스템은 조명, 가스, 난방 기기 등 가정 내의 다양한 정보기기들을 네트워크로 연결하여 집안내부에서 제어하고 휴대폰 또는 스마트 폰 그리고 개인용 컴퓨터로 외부에서 제어할 수 있다. 홈 네트워크 시스템을 구성하는 통합 서버와 월 패드는 고가이고 네트워크 인프라를 구축하여야 하는 단점이 있다. 본 논문에서는 이러한 홈 네트워크의 단점을 보완하는 스마트 폰을 이용한 지능형 홈 네트워크 시스템을 제안하였다. 현재 널리 보급된 스마트 폰은 고 사양 입출력 장치로 기존 월 패드의 사용자 인터페이스 부분인 디스플레이와 터치스크린을 대체하고, 홈 네트워크의 관리 및 제어 기능을 스마트 폰에 집중함으로써 저비용으로 보급형 월패드를 구현하였다.

• 한국컴퓨터정보학회논문지
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• 제13권5호
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• pp.187-193
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• 2008

웨어러블 환경에서 사용자가 홈오토메이션 시스템을 제어할 수 있는 인터페이스기술들이 최근 많이 개발되고 있다. 본 논문에서는 수족이 불편한 사용자가 웨어러블 환경에서 EOG 감지 회로와 사람이 인지 가능한 마커를 이용하여 홈오토메이션을 직접 제어할 수 있는 인터페이스 방법을 제안한다. 제안된 사용자 인터페이스에서는 지시 장치로 EOG 감지 회로를 사용하고, 사용자가 다루고자 하는 홈오토메이션 기기에 해당되는 마커를 눈의 움직임을 이용해 사용자가 선택하면 선택된 마커를 인식하여 해당 기능을 수행하는 제어 명령을 홈오토메이션 제어장비에 보냄으로써 사용자가 원하는 기능이 수행되도록 한다. EOG 감지 회로와 마커 인식 시스템을 이용함으로써 수족 사용이 불가능한 사용자도 눈동자의 움직임만으로 홈오토메이션 조작을 손쉽게 수행할 수 있다.

• 반도체디스플레이기술학회지
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• 제17권3호
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• pp.21-26
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• 2018

In this paper, the switching characteristics of the active clamp type flyback converter, which is deemed suitable for the miniaturization of the external power supply for home appliance, were analyzed and the process of reducing the switching loss was explained. The active clamp type flyback converter operating in the DCM has confirmed that the surge voltage of the main switch does not occur and the turn-off / on loss of the switch do not occur in principle. Also, in the case of the switch for synchronous rectifier, it was showed that the switch current showed half-wave rectified sinusoidal characteristic, and the switching loss was reduced. The switching characteristics of the experimental results gathered from 120 W class prototype were compared with the theoretical waveform in the steady-state and it was confirmed that the power conversion efficiency of the active clamp type flyback converter was maintained high due to the reduction of the switching loss.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2126-2130
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• 2003

In the integrated systems, that is integrated digital TV(DTV) internet and home automation, like home server, is needed integration of digital TV video signal and computer graphic signal. The graphic signal is operating at the high speed and has time-divide-stream. So the re-request of data is not easy at the time of error detection. therefore EDAC algorithm is efficient. In this paper, we show a scheme, that is integration of graphic and dtv format signal for DTV monitor display. This paper also presents the efficiency error detection auto correction(EDAC) for conversion of graphics signal to DTV video signal. A presented EDAC algorithms use the modified hamming code for enhancing video quality and reliability. A EDAC algorithm of this paper can detect single error, double error, triple error and more error for preventing from incorrect correction. And it is not necessary an additional memory. In this paper The comparison between digital TV video signal and graphic signal, a EDAC algorithm and a design of conversion graphic signal to DTV signal with EDAC function in DTV system is described.