• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.11a
• /
• pp.363-365
• /
• 2014

기존의 알람 어플리케이션은 음향 효과를 통한 자극이라는 단순한 방식으로 과거와 같거나 알람 해제 방식이 유사한 알람 어플리케이션들이다. 이러한 기존의 방식을 벗어나, 알람을 해제하려는 사용자에게 질문을 하고 그에 대한 답변을 Google TTS로 입력받아 알람을 끌 수 있도록 하였다. 또한 알람 종료 시 블루투스 통신을 이용하여 사용자가 입력한 값에 따라 아두이노를 통하여 실내의 조명과 커튼을 제어하여 더 효과적인 알람 효과를 낼 수 있도록 구현하였다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2019.10a
• /
• pp.228-230
• /
• 2019

일상생활에서 빈번히 사용되는 주변 생활 제품은 기술의 급속한 발전과 더불어 지능화 정도가 가속화 되고 있는 추세에 있다. 일반적으로 LED 조명이나 실내 에어컨을 자동으로 조정하거나 자동청소로봇 등은 이미 일반화된 제품들이다. 그럼에도 불구하고 우리 생활에서 가장 필요한 용품인 거울에 대한 지능적인 제품은 비교적 고가이어서 소비자가 쉽게 접근하기 어려운 생활용품이 되고 있어서 지능화 제품의 보급이 더딘편이다. 따라서 본 논문에서는 Raspberry Pi 3B+ 를 기반으로 하여 음성제어가 가능한 스마트 미러를 설계하고 구현하였다. 이를 위하여 저렴한 raspberry pi의 WiFi를 통해 네트워크에 연결하도록 하여 미러가 시간, 날씨 및 뉴스 정보 기능을 자동으로 업데이트 할 수 있도록 하였고 기상 조건, 사전 시간 또는 음악 재생과 같은 음성 제어가 가능하기 위하도록 Google Asistant 음성 인터페이스를 적용하였다. 본 논문에서 제안한 제품이 실용화될 경우 저가이면서 고기능 사양을 제공하고 있어서 스마트 미러 보급에 많은 기여가 예산된다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2016.10a
• /
• pp.794-797
• /
• 2016

This paper proposed the smart graden veranda system using the Arduino which is an open hardware controllers and sensors. It is designed automatically controls the watering and lighting. This system is not already massive cultivation systems, such as the existing plant factory that is a lot of leverage Considering that used in the interior, such as apartments and functionality were of course perform the design considering the aesthetic, recently spotlighted receive Internet of Things technology for this and it was carried out with the development of automated equipment using a smartphone app.

• The Journal of the Korea Contents Association
• /
• v.22 no.4
• /
• pp.509-518
• /
• 2022

The childcare scpace environment greatly affects the growth and development of infant and toddler. Building a comfortable space environment is considered a great social task. Through this study, the current guidelines can be expanded and supplemented by comparatively analyzing the childcare space environment of domestic and foreign guidelines. An integrated guideline with additional suggestions for universal design, scale, dimensions, environment, and finishing materials was derived.

• Bulletin of the Korea Photovoltaic Society
• /
• v.8 no.1
• /
• pp.9-19
• /
• 2022

전 세계적으로 탄소중립에 대한 중요도가 증가하면서 국내에서도 이를 위한 그린뉴딜 정책이 발표되었다. 태양전지는 탄소중립 실현을 위한 중요한 신재생에너지 중의 하나이며, 최근에는 실외 거치형 발전 시스템을 넘어 건축 창호 및 외벽, 자동차 선루프, IoT 센서 구동용 전원 등 다양한 분야에서 제품들과의 융합화를 위한 소재/시스템 기술이 개발되고 있다. 본 원고에서는 유기태양전지를 활용한 Product integrated 태양전지 소재 및 응용 기술에 대해서 살펴보고자 한다. 특히, 실내 조명을 이용한 유기태양전지 기술에 대해 자세히 논의하고자 한다.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.22 no.1
• /
• pp.24-32
• /
• 2008

The ultimate purpose of the study is to develop a discomfort glare forecasting formula that can be practically used in Korea in order to effectively forecast discomfort glare considering the optical characteristics of the Koreans. The study was to examine the relations between discomfort glare and the variables such as luminance, background luminance, solid angle, luminous area and louver. To this end, experiments were conducted in a mock-up office that emulates the lighting environment of an ordinary office. The study was conducted by four steps as follow. First, previous studies on discomfort glare rating to define and rate discomfort glare were analyzed and modified to be applied to the experiments of this study. Second, experiment variables, variable scope, evaluation objects and evaluation points were determined after review on existing discomfort glare evaluation experimental formulas. Third, experiments were conducted in a mock-up office to be able to control variables. Finally, sensitivity of experiment variables were analyzed through examination of the relation between discomfort glare and the variables such as luminance, solid angle, louver, luminous area and subject's position. The result showed that the most influential variables on discomfort glare of an artificial light source is luminance and louver, luminous area and subject's position(solid angle) followed.

• Journal of the Korea Society of Computer and Information
• /
• v.27 no.7
• /
• pp.49-55
• /
• 2022

In this paper, we propose an obstacle detection method that can operate robustly even in external environmental factors such as weather. In particular, we propose an obstacle detection system that can accurately inform dangerous situations in AR through DB-based feature matching and RANSAC-based multiplane method. Since the approach to detecting obstacles based on images obtained by RGB cameras relies on images, the feature detection according to lighting is inaccurate, and it becomes difficult to detect obstacles because they are affected by lighting, natural light, or weather. In addition, it causes a large error in detecting obstacles on a number of planes generated due to complex terrain. To alleviate this problem, this paper efficiently and accurately detects obstacles regardless of lighting through DB-based feature matching. In addition, a criterion for classifying feature points is newly calculated by normalizing multiple planes to a single plane through RANSAC. As a result, the proposed method can efficiently detect obstacles regardless of lighting, natural light, and weather, and it is expected that it can be used to secure user safety because it can reliably detect surfaces in high and low or other terrains. In the proposed method, most of the experimental results on mobile devices reliably recognized indoor/outdoor obstacles.

• Journal of Distribution Research
• /
• v.13 no.3
• /
• pp.1-25
• /
• 2008

This study, from a temporal standpoint, seeks to validate the relationship between prior shopping experience, a pre-experiential construct, and impulsive/planned purchase intentions, a post-experience construct, based on strategic experiential module advocated by Schmitt (1999) by focusing on three key variables--prior shopping experience, on-site experiences, and emotional response to store atmosphere. Also, from a spatial standpoint, the study aims to valiadate the relationship between emotional response to store atmosphere and impulsive purchase intentions across three retail store types--department store, discount store, and internet store. Specific research purposes and findings are as follows. First, it was found that regardless of the degree of prior shopping, discount store and internet shoppers preferred cognitive shopping experience to emotional experience. Second, emotional shopping experience significantly influenced impulsive purchase intention, whereas cognitive shopping experience influenced planned purchase intention. Third, for discount store shoppers only did the interior colour serve as a positive moderator between emotional shopping experience and impulsive buying intention, while merchandise display served as a negative moderator.

• Journal of Digital Convergence
• /
• v.12 no.8
• /
• pp.249-255
• /
• 2014

In this paper, we proposed to reduce the interference in the visible light Communication with multi-LEDs for improving the performance of BER and satisfied the QoS. LED is not only lighting device, but also transmitting device in the VLC. Our proposed system is aim to decrease the interference in the multi-LEDs. In addition, it occurred the ISI and CCI by transmitter to receiver different distance. To solve this problem, we proposed the multi-LEDs system using walsh code to reduce ISI and CCI. In addition, our proposed system is able to improve the performance of BER and satisfied the Qos to desire users.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.14 no.4
• /
• pp.77-83
• /
• 2014

Visible light communication is a converging communication by technologies that enable solutions using the LED Lighting. There is a need to research about it in order to improve the performance of the wireless communication by using a Color LED and improve the efficiency of data. In this paper, Assume the General indoor communication environment and LED communication systems based on CSK-OFDM applied to a MIMO communication system, We studied about transmitting method of more efficient communication. After performing the simulation based on IEEE 802.15.7 Standardization, as a result of the analysis of performance, it was confirmed the there is a significant impact on the performance of SNR and BER performance by the transmitting method based on MIMO and external noise using the LED communication system based on CSK-OFDM.