• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2017년도 춘계학술발표대회
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• pp.1193-1194
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• 2017

실시간으로 화재 발생을 감지하고 관리자와 사용자에게 알리기 위해 본 연구에서는 센서와 드론을 활용한 스마트 빌딩 화재 알림 시스템을 제안한다. 시스템은 스마트센서, 드론, 컨트롤서버, 관리자앱으로 구성되어 있다. 온도감지 센서를 통해 빌딩 내부의 온도를 실시간으로 전송하고 온도가 일정 범위를 벗어난 경우 관리자에 알림 메시지를 보내고 드론에게 정찰 명령을 보낸다. 관리자는 전송된 온도와 드론이 정찰한 사진을 확인하여 화재를 파악하고 화재발생의 경우 빌딩 내부의 모든 사용자에게 알림 메시지를 전송한다. 이를 통해 기존의 CCTV 보다 화재 상황에 대해 좀 더 능동적이면서 빠르고 정확하게 대응할 수 있으며 나아가 화재 신고 및 원인 규명에도 도움이 될 것이다.

• 한국멀티미디어학회논문지
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• 제10권6호
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• pp.799-806
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• 2007

The prototypical smart environment to support the context-aware interactions between user and ubiquitous campus environment based on multi-agent system paradigm is proposed in this paper. In this model, the dynamic Bayesian is investigated to solicit and organize agents to produce information and presentation assembly process in order to allocate the resources for an unseen task across multiple services in a dynamic environment. The user model is used to manage varying user constraints and user preferences to achieve system's goals.

• Smart Structures and Systems
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• 제4권4호
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• pp.465-492
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• 2008

Proper pretest planning is a vital component of any successful vibration test on engineering structures. The most important issue in dynamic testing of many engineering structures is arriving at the number and optimal placement of sensors. The sensors must be placed on the structure in such a way that all the important dynamic behaviour of a structural system is captured during the course of the test with sufficient accuracy so that the information can be effectively utilised for structural parameter identification or health monitoring. Several optimal sensor placement (OSP) techniques are proposed in the literature and each of these methods have been evaluated with respect to a specific problem encountered in various engineering disciplines like aerospace, civil, mechanical engineering, etc. In the present work, we propose to perform a detailed characteristic evaluation of some selective popular OSP techniques with respect to their application to practical civil engineering problems. Numerical experiments carried out in the paper on various practical civil engineering structures indicate that effective independence (EFI) method is more consistent when compared to all other sensor placement techniques.

• International journal of advanced smart convergence
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• 제4권2호
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• pp.1-5
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• 2015

The necessity to distribute energy wirelessly has been spurred by the tremendous growth in the use of portable devices. Mobile devices have become ubiquitous and the circuits within them have been optimized to consume extremely low amounts of power. Such portable electronic sets are in constant use and the frequent need to recharge them; using conventional wired mechanisms have hindered the mobility of users. Wireless transmission of energy to power-up devices has been proposed since the days of Tesla and since then many theories and methods have been invented. This paper discusses some of those techniques briefly.

• Smart Structures and Systems
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• 제22권6호
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• pp.711-725
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• 2018

Most of the practical engineering structures exhibit nonlinearity due to nonlinear dynamic characteristics of structural joints, nonlinear boundary conditions and nonlinear material properties. Hence, it is highly desirable to detect and characterize the nonlinearity present in the system in order to assess the true behaviour of the structural system. Further, these identified nonlinear features can be effectively used for damage diagnosis during structural health monitoring. In this paper, we focus on the detection of the nonlinearity present in the system by confining our discussion to only a few selective time-frequency analysis and multivariate analysis based techniques. Both damage induced nonlinearity and inherent structural nonlinearity in healthy systems are considered. The strengths and weakness of various techniques for nonlinear detection are investigated through numerically simulated two different classes of nonlinear problems. These numerical results are complemented with the experimental data to demonstrate its suitability to the practical problems.

• 한국전기전자재료학회논문지
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• 제33권4호
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• pp.326-330
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• 2020

Small-scale production control systems for smart manufacturing are becoming increasingly necessary as the manufacturing industry seeks to maximize manufacturing efficiency as the demand for customized product production increases. Correspondingly, the development of an embedded system to realize this capability is becoming important. In this study, we developed an embedded system based on an open source system that is cheaper than a widely applied programmable logic controller (PLC)-based production control system that is easier to install, configure, and process than a conventional relay control panel. This embedded system is system is based on a low-power, high-performance Cortex M4 processor and can be applied to smart manufacturing. It is designed to improve the development environment and compatibility of existing PLCs, control small-scale production systems, and enable data collection through heterogeneous communication. The real-time response characteristics were confirmed through an operation test for input/output control and data collection, and it was confirmed that they can be used in industrial sites.

• 한국인터넷방송통신학회논문지
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• 제20권2호
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• pp.277-282
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• 2020

전 세계적으로 추진 중인 단위영역별 중·대형 마이크로그리드(Microgrid) 시스템 구축은 전력망의 효율적 운영 및 전력 비상사태에 대비한 독립적인 운전이 가능한 형태로 점차 발전, 확대되고 있으며, 다양한 형태의 새로운 형태의 민간 주도형 전력산업을 발전시키고 있다. 따라서 국내 전력산업의 발전을 위해서는 관련 국제 표준화의 진행 현황 및 기술을 분석하고, 국내 실정에 맞는 표준제정과 새롭게 제정의 필요성이 있는 사항에 대해 국내 표준(안)의 국제표준화가 시급한 실정이다. 캠퍼스 마이크로그리드는 통합 에너지 관리 시스템(EMS), 분산전원(DG), 에너지저장 장치(ESS), 수요반응(DR), 전기자동차(EV) 등 스마트그리드 요소기술들을 대학 캠퍼스에 통합된 형태로 구현하여 에너지 사용을 저감하고 에너지 사용효율과 에너지자립도를 향상하는 시스템으로 이러한 시스템의 상호운용성 및 신뢰성 확보를 위한 표준화 정립에 대해 살펴본다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2012년도 춘계 종합학술대회 논문집
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• pp.275-276
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• 2012

스마트 시대의 대학 정보화 일환으로 스마트 캠퍼스 구축이 추진되고 있다. 구축을 보다 계획적이고 체계적으로 수행하기 위해서는 정보 전략 기획(ISP)을 필요로 한다. 이에 본 연구에서는 스마트 캠퍼스 구축을 위한 정보 전략 기획을 수행하기 위한 방법론을 환경 변화 분석, 현황 분석, To-Be 설계, 이행 계획 수립 등의 Flow 모형에 기반을 두고 설계하고자 한다.

• 스마트미디어저널
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• 제13권4호
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• pp.104-113
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• 2024

This study is a model study on the contents and methods of intercultural learning. Starting with a discussion of the intercultural learning model construct, it presents key contents important for intercultural learning and learning methods that can increase the effectiveness of intercultural learning. Also, we actually conducted the above learning program at the learning site and discussed the observations and results. It was a case study that allowed us to test the effectiveness of cultural intelligence theory, the latest theory that can improve intercultural competency. In addition, in order for the cultural intelligence theory to be effective in the learning process, it was found that the PBL method, which allows learners to solve problems on their own, rather than cramming education, is useful. Additionally, it was found that the ARCS model was also very effective in motivating and maintaining learners' continuous motivation. At this time, the instructor was also able to see that the effect increases when the role of catalyst becomes the main one.

• 한국산업정보학회논문지
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• 제16권5호
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• pp.93-105
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• 2011

본 논문은 정보기술수용모형의 사용용이성과 유용성이 스마트러닝의 수용태도와 사용 의도에 미치는 영향에 대한 연구를 수행하였다. 또한, 스마트폰을 활용한 학기 초와 학기 중 및 학기말의 학습시점에서 사용용이성과 유용성이 수용태도에 미치는 영향의 차이를 분석하고, 이를 바탕으로 학습시기별 차별화에 대한 필요성을 인식하였다. 본 연구의 분석결과 스마트폰을 활용한 학습자들의 영향 요인들 간에 차이가 있음을 인식하고, 대학에서 실시하고 있는 스마트 캠퍼스 구축의 실효성을 높이기 위해 스마트러닝의 유용성을 중요요인으로 학습에 대한 관련성과 주관적 규범을 고려한 스마트러닝 시스템 구축과 학습시기를 고려한 다양한 스마트러닝의 설계에 대한 필요성이 인식되었다.