• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 추계학술대회
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• pp.52-54
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• 2018

최근 '융합과 연결'이라는 4차 혁명에 관심이 높아지고 있으며, '고연결성 사회'를 눈앞에 두고 있다. 이에 따라 사물인터넷에 대한 관심이 사상 최고치에 달하고 있으며, 그 관심의 대상이 오토메이션과 커넥티드카 등으로 국한되지도 않는다. 따라서 사물인터넷은 차세대 이동통신 서비스의 생태계 구축을 위한 중요 역할을 수행할 것으로 기대되고 있다. 따라서 본 논문에서는 어떤 통신이 사물인터넷에 적합한 것인지와 사물인터넷을 위한 통신들에 대한 기술동향에 대해 소개하고자 한다.

• 한국실내디자인학회논문집
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• 제15권3호
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• pp.40-47
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• 2006

This study examined concepts and expressional relations with Rene Maggritte works that had influence upon design expressions of Shiro Kuramata who brought name of things to the extreme to give new values and functions at the end. Rene Maggritte who was a representative surrealism painter in Belgium had a lot of influence and inspiration on the art world including pop art and conceptual art in the middle of the 20th century and so many modern artists. Rene Maggritte unreasonably placed object of ordinary things that people could know to combine them and to make people's thought be free from ideas. Shiro Kuramata worked at wide areas including the space, lighting, furniture and products to be well known as a designer who could create concepts. Shiro Kuramata designed indoor space and furniture not by making forms but by being free from customary names and concepts of things to examine substance and to discover unlimited possibility and to create new visual functions. And, such a thing made people be free from names and concepts that they cognized for a long time, and it brought freedom to things. This study investigated correlations of work concepts and expressions of Rene Maggritte and Shiro Kuramata to bring new inspiration and expansion to people's thought methods and design methodology regarding concepts of things.

• 디지털산업정보학회논문지
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• 제15권1호
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• pp.21-28
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• 2019

Internet of Things(IoT) is a technology or environment that collects data by attaching sensors to objects and transmits the collected information to each other through wired / wireless communication in real time. It is expected that when the Internet of objects is activated, many objects can identify and recognize each other by themselves and provide various services to facilitate our lives through mutual information exchange. In addition, the internet market for things is growing rapidly each year, and various IT technologies are expected to converge. In the Internet environment of objects, data exchange technology between object devices, that is, message protocol, is classified as one of important technologies. In this paper, we examine various lightweight message protocols suitable for the Internet environment of objects, and compare the reliability of the CoAP protocol structure with the MQTT protocol for a limited environment. Finally, we confirm the reliability of TCP / TLS and WebSockets-based CoAP transmission protocol of IETF's CoRE WG that can use various transport layers other than UDP in Internet environment including cloud infrastructure.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2019년도 춘계학술대회
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• pp.15-17
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• 2019

학교 행사나 취업정보, 진학정보, 주요학사일정 등 중요한 정보를 현재는 가정통신문만을 통하여 정보를 전달 받기 때문에 일부 정보의 사각지대가 발생하고 있었다. 이러한 문제를 해결하기 위해 사물인터넷 기반 스마트 교육에 대한 자료조사를 바탕으로 유무선 네트워크에서 P2P방식의 사물인터넷 기술을 접목 전자보드 프로토타입을 설계하였다. 각 교실에서 학교 행사 등 필요한 정보를 교무실에서 실시간으로 자료를 받아 교실에서 공유 받을 수 있도록 하였다. 또한 전자보드 사용 방법을 잘 알지 못해도 누구나 손쉽게 이용할 수 있기 때문에 사물인터넷 기반 스마트교육용 전자보드 프로토타입을 설계 하고자 한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2019년도 춘계학술대회
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• pp.564-565
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• 2019

사물인터넷 기술은 4차 산업 혁명의 원동력이 될 차세대 주축기술로 평가되고 있다. 사물인터넷 응용을 위한 엔터티 들의 특징은 기존 보다 활동적이고 능동적으로 변해가고 있어서, 보다 세분화된 접근제어가 필요하지만 기존의 접근제어 기술은 사용자를 중심으로 설계되어 절차가 복잡하고 가변적인 내용을 적용하기에 시스템 부하가 심해, 시스템의 부하가 적으면서 효율성과 보안성을 유지할 수 있는 접근제어 기법이 필요하다. 따라서 사물인터넷 엔터티에 적합한 역할기반 접근제어에 대한 연구가 반드시 필요하다. 본 연구에서는 사물인터넷 엔터티 들의 접근제어 연구를 위한 관련 연구와 사물인터넷 내의 다양한 엔터티들의 속성을 정의할 수 있는 RBAC와 AC 방식에 대하여 분석하였다.

• 디지털산업정보학회논문지
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• 제18권3호
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• pp.9-23
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• 2022

This study aims to examine research trends on the Internet of Things and smart city based on papers from the United States, Japan, and Korea. We collected 7113 papers related to the Internet of Things and smart city published from 2016 to 2021 in Elsevier's Scopus. Keyword frequency and centrality analysis were performed based on the abstracts of the collected papers. We found keywords with high frequency of appearance by calculating keyword frequency and identified central research keywords through the centrality analysis by country. As a result of the analysis, research on security, machine learning, and edge computing related to the Internet of Things and smart city were the most central and highly mediating research conducted in each country. As an implication, studies related to deep learning, cybersecurity, and edge computing in Korea have lower degree centrality and betweenness centrality compared to the United States and Japan. To solve the problem it is necessary to combine these studies with various fields. The future research direction is to analyze research trends on the Internet of Things and smart city in various regions such as Europe and China.

• 디지털산업정보학회논문지
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• 제18권1호
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• pp.47-54
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• 2022

All things connected to the Internet have to ensure interoperability between each other. Web of Things (WoT) is an Internet of Things (IoT) Web standard technology that enables the communication between smart devices and web-based applications. In order for WoT to be possible, monitoring of all devices connected to the Internet have to be possible. To this end, various efforts are being made to develop network monitoring applications using the latest Web front-end frameworks, not traditional web-based monitoring. This paper examines and describes the possibilities of applying Web front-end frameworks such as React, Angular and Svelte to the development of network monitoring applications for WoT. This paper also describes the pros and cons of two major frameworks, React and Angular, in developing monitoring applications that support the cross-platforms and cross-browsers in WoT environments and examines the applicability of them by developing simple network monitoring applications using React.

• ETRI Journal
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• 제44권1호
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• pp.135-146
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• 2022

The importance of big data analytics has become apparent with the increasing volume of data on the Internet. The amount of data will increase even more with the widespread use of Internet of Things (IoT). One of the most important application areas of the IoT is healthcare. This study introduces new real-time data analytics architecture for an IoT-based smart healthcare system, which consists of a wireless sensor network and a radio-frequency identification technology in a vertical domain. The proposed platform also includes high-performance data analytics tools, such as Kafka, Spark, MongoDB, and NodeJS, in a horizontal domain. To investigate the performance of the system developed, a diagnosis of Wolff-Parkinson-White syndrome by logistic regression is discussed. The results show that the proposed IoT data analytics system can successfully process health data in real-time with an accuracy rate of 95% and it can handle large volumes of data. The developed system also communicates with a riverbed modeler using Transmission Control Protocol (TCP) to model any IoT-enabling technology. Therefore, the proposed architecture can be used as a time-saving experimental environment for any IoT-based system.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 춘계학술대회
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• pp.194-196
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• 2015

본 연구에서는 사물인터넷의 개념의 시작과 현재에 이르기까지 그 발전과정을 살펴보고, 향후 발전 방향과 활용에 대하여 논의 하고자 한다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2015년도 제52차 하계학술대회논문집 23권2호
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• pp.191-192
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• 2015

본 논문에서는 최근 급성장하는 사물인터넷(Internet of Things, IoT) 시장의 안전한 원격 네트워크 통신을 위한 가상사설망(Virtual Private Network, VPN) 구축을 TLS(Transport Layer Security, TLS 1.0 또는 SSL 3.0) 프로토콜을 사용하여 암호화 기술, 터널링 기술을 적용한 인증 기반의 안전한 통신망을 제공하는 목적에서 기술개발의 고도화를 추구한다.