• Electronics and Telecommunications Trends
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• v.29 no.5
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• pp.136-144
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• 2014

오늘날 ICT(Information & Communication Technology)분야의 최대 화두를 꼽는다면 빅데이터, IoT(Internet of Things), 그리고 클라우드를 빼놓을 수 없다. 아직 국내에서는 클라우드 관련 산업 및 시장이 본격적으로 활성화되고 있지는 못하지만, 다양한 규모와 형태의 클라우드 인프라를 손쉽게 구축하고 관리할 수 있는 클라우드 운영체제의 출현과 기술 고도화로 기업의 ICT 환경을 클라우드로 전환하는 사설 클라우드의 구축이나 공용 클라우드와 사설 클라우드를 적절히 함께 운용하는 하이브리드 클라우드에 대한 관심이 매우 높은 실정이다. 현재 이러한 흐름을 이끌며 가장 많은 주목을 받고 있는 것이 바로 공개 소프트웨어 기반의 클라우드 운영체제인 OpenStack이다. 본고에서는 OpenStack의 최근 배포판인 Icehouse를 중심으로 OpenStack의 구성과 주요 특징 그리고 기술동향을 정리한다.

• Korean Journal of Computational Design and Engineering
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• v.21 no.3
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• pp.215-223
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• 2016

The low price around 1000 USD makes consumer 3D printers as a new additive manufacturing platform for the personal manufacturing where consumers can make and sell their own products. To allow the consumers to design and manufacture their products, not only economic 3D printers but also supporting information systems for their design and manufacturing are essential. This study suggests an extended product data management (PDM) system that can support both the design and manufacturing of personal products with consumer 3D printing services. This extended PDM system helps consumer designers use advanced PDM technologies for their design and connected 3D printing services with Internet of Things (IoT) technology for realization of their products. As a result, the proposed system supports the consumer designers a seamless integrated product development and manufacturing environment supported by PDM and consumer 3D printing services.

• Information and Communications Magazine
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• v.32 no.2
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• pp.52-62
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• 2015

사물인터넷은 단순히 센서 정보의 수집이 아닌 정보의 가공을 통한 새로운 서비스 창출이 가능한 차세대 기술로 각광받고 있다. 현재 기존의 서비스 분야에 사물인터넷 기술을 접목한 다양한 서비스의 창출이 이루어지고 있다. 특히 IoT기반의 운동선수 관리 서비스, 웨어러블 엔터테인먼트 서비스 등 경기력 향상을 위한 스마트 스포츠 분야로 그 영역이 확대되고 있다. 따라서 국가적인 행사인 평창올림픽에 사물인터넷 기술을 접목하여 기존의 올림픽과는 차별화된 서비스를 제공하고 올림픽 문화유산으로 계승되게 하는 것은 우리의 ICT기술의 경쟁력을 한단계 더 높이는 기회가 될 것이다. 본 고에서는 현재 이용 가능한 다양한 사물인터넷 서비스들에 대해 살펴보고 이를 통해 성공적인 스마트 ICT 올림픽에 활용할 수 있는 기숭을 소개하고자 한다.

• IEMEK Journal of Embedded Systems and Applications
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• v.16 no.1
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• pp.29-34
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• 2021

We developed a pet care robot that can be controlled outdoors. Through the smartphone application, the pet owners can watch the situation in the house and manipulate the robot to make their pet happy. The video data in the house is transmitted to the application through the webcam installed at the house. The robot can not only perform user's command but also do six basic macro action. The obstacle avoidance function using the current sensor can be activated if the user want to use. When the robot hits to something, it moves back and rotates by arbitrary angle, and then moves forward.

• Annual Conference of KIPS
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• 2020.11a
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• pp.193-195
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• 2020

최근 IoT 기술의 발전을 통해 스마트홈 서비스가 사용자에게 활발하게 보급이 되고 있다. 스마트홈 서비스에서 발생하는 데이터는 개인정보를 내포하고 있으므로 보안이 매우 중요한 요소이다. 그러나 매해 스마트홈 해킹 신고가 증가하고 있으며 기존 네트워크 침입탐지 시스템은 관리자 계정을 탈취 당했을 경우 대응할 방법이 미비하다. 본 논문에서는 스마트홈 환경에서 발생하는 활동 데이터를 인공지능 알고리즘의 종류 중 하나인 랜덤포레스트를 통해 학습하고 분류모델을 구현했다. 구현한 모델은 87%이상의 높은 정확도로 측정되었다. 따라서 활동 데이터를 통해 분류를 시행하므로 네트워크에 이미 침입한 사용자를 탐지하여 대응할 수 있다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.11
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• pp.86-93
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• 2016

Information technology, such as IoT, Big Data, Drone, Cloud etc., is evolving every year. Information Society is changing Intelligence Society and Creative Society. A new Construction Projects Management System Roadmap is required because it is difficult to reflect the current IT environments based on the CALS(Continuous Acquisition & Life-cycle Support) master plan, which is performed to establish every five years since 1998. This study was prepared for the Roadmap with a focus on Construction Management System based on the 4th CALS master plan, which was performed to establish the 2012 year. To this end, the construction environment and several information systems were investigated and analyzed. The problems of the construction project information system were derived using SWOT analysis, the vision, goal, direction, strategy, main tasks, specific tasks, and timetable of the Construction Project Management System are presented. This roadmap is designed to be used as operational indicators of a future construction project management system.

• Korean Journal of Agricultural and Forest Meteorology
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• v.21 no.3
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• pp.175-186
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• 2019

Efforts have been made to introduce the climate smart agriculture (CSA) for adaptation to future climate conditions, which would require collection and management of site specific meteorological data. The objectives of this study were to identify requirements for construction of agricultural meteorology information service system (AMISS) using technologies that lead to the fourth industrial revolution, e.g., internet of things (IoT), artificial intelligence, and cloud computing. The IoT sensors that require low cost and low operating current would be useful to organize wireless sensor network (WSN) for collection and analysis of weather measurement data, which would help assessment of productivity for an agricultural ecosystem. It would be recommended to extend the spatial extent of the WSN to a rural community, which would benefit a greater number of farms. It is preferred to create the big data for agricultural meteorology in order to produce and evaluate the site specific data in rural areas. The digital climate map can be improved using artificial intelligence such as deep neural networks. Furthermore, cloud computing and fog computing would help reduce costs and enhance the user experience of the AMISS. In addition, it would be advantageous to combine environmental data and farm management data, e.g., price data for the produce of interest. It would also be needed to develop a mobile application whose user interface could meet the needs of stakeholders. These fourth industrial revolution technologies would facilitate the development of the AMISS and wide application of the CSA.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.4
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• pp.129-135
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• 2017

Recently, with the development of IoT technology, there has been an increase in interest in the power consumption of the devices used by the internal devices. Especially, the standby power consumption during the main function of the devices is about 11% of the power energy and the problem of standby power interruption is suggested. However, there is a problem that the plug must be unplugged in order to substantially shut off standby power. Therefore, in this paper, we design and implement a standby power cutoff algorithm that can automatically control and manage users' participation in order to solve there problems. As a result of evaluating the implemented system, it was confirmed that the standby power interruption rate improved by about 5.89Wh on average compared to the existing system.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.2
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• pp.263-269
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• 2017

'Goal Model' is core knowledge of 'Autonomic Control System' suggested to minimize human interference in system management. 'Autonomic Control System' performs 'Monitoring-Analysis-Plan-Execution', that is the four step of 'Autonomic Control', based on 'Goal Model'. Therefore, it is necessary to quantify achievement ratio of 'Goal Model' of target system. Thus, this paper present 'Probabilistic Evaluation of Goal Model' for methodology how to quantify achievement ratio of 'Goal Model'. It comprises 3-steps including 'Goal modeling and weighting', 'Goal model monitoring', 'Goal model evaluation and analysis'. Through these research, we provide core knowledge for 'Autonomic Control system' and it is possible to increase the reliability of system by evaluating 'Goal model' with applying weight. As case study, we apply 'Goal model' to a 'Smart IoT Kit' and we demonstrate the validity of the suggested research.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.5
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• pp.886-891
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• 2015

Recently, The World Health Organization announced that harms human health because of air pollution that are emerging as threats to human health worldwide. according to the, Seoul, 2011 According to a July 2014 - Public Facilities indoor air quality measurements, were examined to be in violation of indoor air pollution standards in most multi-use facility. Indoor air pollution resulting from this is present in the paper, and cause disease, such as pulmonary disease, asthma, bronchitis and to In this connection, the measurement of indoor air quality by using the environment sensor, analyzing the measured data to generate an actuator signal required for ventilation and improve indoor air quality by implementing a monitoring system with real-time measurement, autonomously managing the air quality in our lives so that it can be.