• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1265-1267
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• 2015

최근 IoT 기술의 등장으로 저전력 소형 컴퓨터인 라즈베리파이 클러스터가 IoT 데이터 처리를 위해 사용되고 있다. IoT 기술이 발전하면서 다양한 데이터가 생성되고 있으며 IoT 환경에서도 빅데이터 처리가 요구되고 있다. 빅데이터 처리 프레임워크에는 일반적으로 하둡이 사용되고 있으며 이를 대체하는 솔루션으로 Apache Spark가 등장했다. 본 논문에서는 PC와 라즈베리파이 클러스터에서의 성능을 Apache Spark를 통해 비교하였다. 본 실험을 위해 Yelp 데이터를 사용하며 데이터 로드 시간과 Spark SQL을 이용한 데이터 처리 시간을 통해 성능을 비교하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.350-353
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• 2017

사물 인터넷(Internet of Things, IoT)이란 사물 인터넷으로서 사물을 서로 연결 및 통신하여 정보를 주고 받을 수 있게 하는 기술이다. 사물 인터넷의 급속한 성장으로 인해 수많은 데이터가 발생하게 되었고, 이러한 이유로 인해 빅데이터(big-data) 기술이 대두되었다. 빅데이터는 정형 데이터 뿐만 아니라 사진, 동영상 등의 비정형 데이터 또한 분석하고 활용하는 기술이기 때문에 사물 인터넷과 빅데이터 기술은 서로 보완적인 관계에 있다. 이러한 두 가지 기술의 특성에 기초하여, 본 논문에서는 빅데이터와 사물 인터넷에 대한 정의와 동향에 대하여 알아보고 이러한 두 가지 기술을 연계해 활용한 실제 플랫폼과 스마트 시티 등에 대한 실생활에 쓰이는 실제 사례 및 기술들에 대해 연구하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.01a
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• pp.273-274
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• 2016

근래에 스마트폰 단말기 사용의 가속화와 빅 데이터의 사회적인 관심이 급증하고 있다. 빅 데이터 수집효율을 최대화하기 위해서 실외/내부에서 흔히 찾아 볼 수 있는 Vending Machine(이하 자판기)을 채택했다. 그리고 Main 서버에게 여러 종류의 방대한 데이터를 전송하여 빅 데이터 기술을 구현함으로써 자판기 관리자와 사용자에게 편리함과 부가서비스 제공환경에 대하여 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.04a
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• pp.73-74
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• 2015

IoT의 발달로 인해 새롭게 빅데이터와 그의 실시간 처리의 중요성이 증대되고 있다. 본 논문에서는 사물인터넷의 관제 및 데이터 처리 기능을 갖춘 SmartX-mini 센터를 통하여 NUC 클러스터의 빅데이터 처리 가능성을 제시하고, 이를 검증하기 위하여 SmartX-mini 테스트베드를 활용한다. SmartX-mini Center의 Spark 프레임워크를 이용한 실험을 통해 IoT 환경에서의 NUC 클러스터의 빅데이터 처리 가능에 대한 가능성을 검증하였다.

• International Journal of Internet, Broadcasting and Communication
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• v.13 no.4
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• pp.143-153
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• 2021

Recently, by applying the 4th industrial revolution technologies such as A.I., IoT, and big data to general residential infrastructure, various application services of residential-based are provided to residents through linkage and utilization between technologies. Accordingly, smart housing system is increasing as advanced living spaces that can improve the quality of life and convenience of residents. Such a smart housing is expected to be an item that can create new demands and markets in the construction industry since it provides a new paradigm that combines construction technology and IT by combining IT technology with existing construction industry. Based on this, it is expected that it will be possible to gradually develop large-scale markets such as smart buildings and smart cities. In this paper, therefore, we propose an artificial intelligence multiplex smart housing system as an intelligent platform that can autonomously manage and control the size of places and spaces, used for various purposes based on smart housing technology by using artificial intelligence systems.

• Convergence Security Journal
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• v.15 no.4
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• pp.27-33
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• 2015

In this paper, the development level of information security technology for internet of things(Iot), big data and clo ud services is analyzed, and the detail policy is proposed to be leader in area of patents and ICT standard. The conc ept of ICT convergence is defined frist, market and current state of technology for three convergence services is the n analyzed, and finally main function and security target for each technology are presented. The evaluation criteria a nd IPR are analyzed to diagnose the level of patent and standard for the technology. From the results, even though the domestic competence is inferior compared to other advanced country, the efficient policy should be presented by using our capability for the big data and cloud. Furthermore, the technology development for the IoT and cloud is ne eded in advance considering the market-technology influence effects. In addition to, M2M security framework in IoT, data security in big data and reliable networking in cloud should be developed in advance.

• Journal of Korea Society of Industrial Information Systems
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• v.21 no.4
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• pp.67-78
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• 2016

Recently many countries around the world are actively promoting smart city projects to address various urban problems such as traffic congestion, housing shortage, and energy scarcity. Due to development of the Internet of Things (IoT), the development of a smart city with sustainability, convenience, and environment-friendliness was enabled through the effective control and reuse of urban resources. The purpose of this study is to analyze the technical trends of IoT and present a development plan for smart city which is one of the applications of the IoT. To this end, the news articles of the Electronic Times between 2013 and 2015were analyzed using the text mining technique and smart city development cases of other countries were investigated. The analysis results revealed the close relationships of big data, cloud, platforms, and sensors with smart city. For the successful development of a smart city, first, all the interested parties in the city must work together to create new values throughout the entire process of value chain. Second, they must utilize big data and disclose public data more actively than they are doing now. This study has made academic contribution in that it has presented a big data analysis method and stimulated follow-up studies. For the practical contribution, the results of this study provided useful data for the policy making of local governments and administrative agencies for smart city development. This study may have limitations in the incorporation of the total trends because only the news articles of the Electronic Times were selected to analyze the technical trends of the IoT.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.511-513
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• 2022

Digital Health Care is the convergence of ICT and (non)medical technology, emphasizing the importance of prevent and monitoring health management in terms of new challenging medical paradigm: predictive, preventive, personalized and participatory. Beyond the limited medical industry of long-term care insurance, it is emerging that AI, IoT, Big Data related new services with new technologies in the 4^th revolution era. It is also noted that business field based on test bed is emergent; Caring Robot, wearable devices need to be launched in the market. Diverse service is possible with Big Data and AI etc.

• Korean Journal of Construction Engineering and Management
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• v.24 no.3
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• pp.42-51
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• 2023

Freeze and burst water meter in winter causes many social costs, such as meter replacement cost, inability of water use, and secondary damage by freezing water. The government is making efforts to modernize local waterworks, and in particular, is promoting SWM(Smart Water Management) project nationwide. In this study suggests a new freeze risk notification information service based on the temperature by IoT sensor inside the water meter box rather than outside temperature. In addition, in order to overcome the quantitative and regional limitation of IoT temperature sensors installed nationwide, and AI based temperature prediction model was developed that predicts the temperature inside water meter boxes based on data acquired from IoT temperature sensors and other information. Through the prediction model optimization process, a nationwide water meter freezing risk information service was convinced.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.612-614
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• 2019

본 논문은 손실이 큰 IoT 빅데이터 처리 고속화 SW의 Queue를 In-memory DataBase로 이용하여 전처리 프레임워크 기술에 대하여 제안하였다.