• Journal of Internet of Things and Convergence
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• v.5 no.1
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• pp.7-11
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• 2019

This study suggests a methodology to track crime suspects or anomalies through CCTV in order to expand the scope of CCTV use as the number of CCTV installations continues to increase nationwide in recent years. For the abnormal behavior classification, we use the existing studies to find out suspected criminals or abnormal actors, use CNN to track objects, and connect the surrounding CCTVs to each other to predict the movement path of objectified objects CCTVs in the vicinity of the path were used to share objects' sample data to track objects and to track objects. Through this research, we will keep track of criminals who can not be traced, contribute to the national security, and continue to study them so that more diverse technologies can be applied to CCTV.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.28 no.5
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• pp.3-11
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• 2014

• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.28 no.5
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• pp.45-54
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• 2017

• Journal of Internet of Things and Convergence
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• v.8 no.3
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• pp.63-68
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• 2022

Due to COVID-19, many paradigm shifts in existing manufacturing facilities and the expansion of non-face-to-face services are accelerating worldwide. A representative technology is digital twin technology. Such digital twin technology, which existed only conceptually in the past, has recently become feasible with the construction of a 5G-based network. Accordingly, this paper designed and implemented a part of the USB process to enable digital twins based on OPC UA communication, which is a standard interlocking structure, between real object objects and virtual reality-based USB process in accordance with this paradigm change. By reflecting the physical characteristics of real objects together, it is possible to simulate real-time synchronization of these with real objects. In the future, this can be applied to various industrial fields, and it is expected that it will be possible to reduce costs for decision-making and prevent dangerous accidents.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.1305-1319
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• 2017

정보통신(ICT)혁명에 이어 사람이 기존에 수행하던 일을 사람의 도움 없이 자동화시킬 수 있는 기술들이 4차 산업혁명의 핵심 기술로 등장하고 있다. 4차 산업혁명이 현재 산업의 지형도와 경제 사회 패러다임의 변화를 촉진하고 있는 것은 주지의 사실이며, 이에 따라 4차 산업혁명에 주요 추동력(driving force)을 제공하고 있는 핵심 플랫폼 기술 5개(인공지능, 빅데이터, 사물인터넷, 클라우드 컴퓨팅, 3D 프린팅)를 선별하여 글로벌 연구동향과 한국의 연구 수준을 파악하였다. 5개 기술에 대해 Elsevier사의 SCOPUS DB를 기반으로 최근 5년 간의 학술연구논문의 출판 현황을 분석하는 한편, 한국연구재단에서 지원된 과제 현황을 조사하였다. 이를 바탕으로 5개 기술별로 국제적 연구 수준과 주요 리딩 연구기관을 파악하였으며, 4차 산업혁명에 대응하는 연구개발의 정책적 시사점을 도출하고자 하였다. 5개 기술에 대해 미국과 중국이 선도하고 있으며, 영국, 독일, 프랑스, 이탈리아 등의 유럽 국가와 일본, 인도, 한국 등이 추격 그룹을 형성하고 있었다. 한국은 HW 대비 SW분야의 연구 경쟁력이 상대적으로 취약하였으며, 전반적으로 연구 수준의 질적 향상이 필요함을 확인하였다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.11
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• pp.2724-2730
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• 2015

Internet of Things (IoT) is possibly the most widely discussed technological concept in today's technology circles. This technology is expected to dramatically change not only how we work but also how we live. The concept of IoT basically means a web of connected devices which can be controlled over a data network. With cost of technology required to control these devices going down and increasing internet connectivity through smartphones, IoT is expected to be an all pervasive technology in the next 10 years. In this paper, we study the technological landscape of this fast growing technology domain from an Intellectual Property (Patents) perspective. We find that the patent distribution in this domain is very fragmented with the top patent applicants in the field holding around 5% of the total patents. Especially, the US geography has seen the maximum patent filings and is closely followed by the big Asian markets of Japan and Korea.

• KIPS Transactions on Computer and Communication Systems
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• v.5 no.5
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• pp.109-116
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• 2016

Today various IoT platforms exist, but most of them only consider IPv6, without other types of network including private network. They support, therefore, the private network to use virtual private network or through the hardware gateway. To solve this limitation, we propose a IoT platform that provides IoT Services on private networks. Also we verify this platform though constructing a testbed.

• Electronics and Telecommunications Trends
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• v.29 no.5
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• pp.18-29
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• 2014

최근 해양안전에 대한 국내외의 관심과 함께 통신기술의 발전, 선박에 다양한 디지털 및 전자장비들이 도입됨에 따라 선박을 위한 전자항법체계인 e-navigation이 주목을 받고 있다. E-navigation은 안전뿐 아니라, 해양에서의 디지털시대의 서막을 여는 IT 융합의 새로운 패러다임을 제공하고 있다. 본 논문에서는 e-navigation과 관련하여 국제해사기구(IMO), 국제항로표지협회(IALA: International Association of Lighthouse Authorities), 국제수로기구 (IHO: International Hydrographic Organization), 국제전기협회(IEC) 등의 관련 기술에 대한 국제표준화기구의 최근 동향에 대해서 살펴볼 것이다. 또한, 한국형 e-navigation에 대한 국내 동향과 함께 최근 각광을 받고 있는 사물인터넷(IoT: Internet of Things) 기술을 해양분야에 적용하기 위한 방안에 대해서도 다루고자 한다.

• Smart Media Journal
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• v.5 no.4
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• pp.9-17
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• 2016

Over the next 20 years it will begin the exodus from the Internet and smart phones to the Internet of Things. The heart of IoT gives new utility and value with connectivity among things around people to the human. In future, Industrial environment will be intimately connect all among machines and machines or factories and factories in all processing, and by digitizing of all goods and production life-cycle, which is a combination of virtual world and real world, the digital factory will become reality eventually. The proposed IoT or IIoT based Download OTA (Over-the-Air) provides a flexible mechanism for downloading Media objects of any type and size from a network. Moreover, proposed IoT based DLOTA provides a part of security by lightweight encryption, OTP, and CapBAC technique.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.8
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• pp.13-18
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• 2016

In Internet of Things (IoT) environment, a variety of smart devices are connected to Internet through various network technologies such as 4G/5G, WiBro, Bluetooth, etc. in order to provide the remote monitoring service such as smart healthcare service, etc. Most standard mobility management protocols based on IETF Mobile IP may not be suitable for Internet of Things (IoT) environments due to constrained power, constrained CPU processing and memory capacity, and large signalling overhead which are inherently accompanied by various devices in IoT environments. In this article, we propose a new mobility management protocol CoMP (CoAP-based Mobility Managemenbt Protocol) for reliable mobility management in IoT environments. The architecture and algorithm to achieve both reliability and simplicity for IoT mobility management are proposed. Finally, performance has been evaluated by both mathematical analysis and simulation.