• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.415-418
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• 2017

Recently, the demand for energy efficiency improvement technology through the connection of waste heat energy and SmartGrid has been increasing. Thus, investments for the cultivation of high value crops and produce is increasing through research aimed at synthetic technology in real-time utilization of smart farms and waste heat energy with the concept of using container greenhouses and plant factories. In this aspect, we have carried out research on a practical application technology that will help farmers to increase the economic effectiveness of LED based plant factories in terms of energy efficiency. This can provide opportunities to connect with the large scale automated smart farms in the future. In this study, we focused on the economic effectiveness of crop cultivation using cooling technology in a container greenhouse through waste heat energy. Hereafter, in order to further advance the technology of real-time monitoring/control of the absorption chiller which is used through the container greenhouses and waste heat energy by using IOT, we would like to propose research on new ideas of agricultural technology that can maximize the utility of cooling energy by operating a mobile gateway based on Raspberry PI.

• KIPS Transactions on Computer and Communication Systems
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• v.3 no.2
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• pp.57-62
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• 2014

In order to provide real-time multimedia streaming service, a lot of system resources and network bandwidth required. Thus each computer is any computer other equivalent has the ability to act as a client and a server Peer-to-Peer(P2P) architecture with much interest. In this paper, techniques of P2P content that requires a user to efficiently retrieve the desired time in the streaming service have placed the focus of the research techniques. In a number present in the P2P contents, the user requests to find out the desired amount of time the content streaming services in order to provide seamless lookup latency contents search algorithm to minimize the study. P2P based smart network system and the structure of the super-node and the peer node is composed of super-gateway. Smart network system architecture proposed by performing a content search algorithm. The user requests a desired content, the service can be retrieved within the provided the flexibility.

• The Journal of Information Systems
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• v.19 no.3
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• pp.181-208
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• 2010

As knowledge-based society comes to the fore, sharing knowledge becomes a hot issue. Among various types of knowledge, a significance of software(applications) and contents is a huge in a current society. Moreover, along with appearance of smartphone, for instance iPhone, Application Store(also known as AppStore) utilized as a common gateway for sharing software and contents, brings a big interest for many users and developers. However, prior research to understand users' behavior on AppStore has been a scant. Therefore, the main purpose of this study is to investigate the impact of key smart service environmental factors on AppStore in order to empirically explain users' psychological feelings of intention to use AppStore. Based on a well-known technology adoption model, TAM, the study incorporates three main characteristics(user, society, and service) with six constructs(Innovation, Enjoyment, Subjective Norm, Information Level, Content variety, and Cost), influencing perceived usefulness, which then affects users' intention to use AppStore. Results provide evidence that support the tested hypotheses. The implications of the findings suggest a new theoretical work for future AppStore research and offers suggestions that the researchers and practitioners of AppStore should consider regarding the development of application and contents.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.915-917
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• 2012

본 논문은 기존의 헬스케어 서비스의 한계를 극복하기 위해 최근 대두되고 있는 스마트 헬스케어 서비스(smart healthcare service)에 관한 연구이다. 스마트 헬스케어는 스마트폰의 기능에 맞추어 기초체력 운동 지수, 섭취 칼로리, 심박 체크 등의 다양한 서비스를 제공할 수 있지만, 최근에는 보건의료서비스에 특화시켜 환자와 의사가 직 간접적으로 진료를 할 수 있게끔 하는 스마트폰 환경에서의 원격진료 서비스가 부각되고 있다. 그러나 스마트 헬스케어 시스템에 기존의 병원정보시스템과 연동되기 위해서는 의료정보전송 표준인 HL7을 지원해야 한다. 이에 본 논문에서는 스마트 헬스케어 시스템의 게이트웨이에서 동작하는 HL7 표준 변환 모듈을 설계 구현하였다.

• ETRI Journal
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• v.35 no.4
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• pp.677-686
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• 2013

In this paper, we first introduce a general architecture of an energy management system in a home area network based on a smart grid. Then, we propose an efficient scheduling method for home power usage. The home gateway (HG) receives the demand response (DR) information indicating the real-time electricity price, which is transferred to an energy management controller (EMC). Referring to the DR, the EMC achieves an optimal power scheduling scheme, which is delivered to each electric appliance by the HG. Accordingly, all appliances in the home operate automatically in the most cost-effective way possible. In our research, to avoid the high peak-to-average ratio (PAR) of power, we combine the real-time pricing model with the inclining block rate model. By adopting this combined pricing model, our proposed power scheduling method effectively reduces both the electricity cost and the PAR, ultimately strengthening the stability of the entire electricity system.

• Smart Media Journal
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• v.5 no.2
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• pp.77-83
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• 2016

Today, the great revolution in all financial industrial such as bank have been progressing through the utilization of IT technology actively, it is called the fintech. In this paper, we draw the draft design of NFC-based electronic payment and coupon system using FIDO framework to apply the 2 factor authentication technique for strength security. In detailed, we will study that the terminal device in front-end will be applied the 2 factor authentication and electric signature, and cloud-based payment gateway in back-end will be applied malicious code detection technique of distributed avoidance type.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.857-860
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• 2004

인터넷 사용인구가 전 국민의 3분의 2가 넘었고, 초고속 인터넷 설치가구가 벌써 1,100만 이상에 이르게 되었다. 점점 더 사람들은 디지털 생활에 익숙해져 가고 있고, 디지털을 떠나서 살아갈 수 없게 되고 있다. 이러한 분위기에 더하여 가정내의 가전기기들도 디지털화 되고 있고, 이것들을 네트워크로 연결하여 원격지에서 제어하는 홈 네트워크 관련 기술들이 현실화 되고 있다. 그러나, 여러 가전회사들이 각자의 미들웨어를 만들고 이것을 이용해서 제품들을 만들고 있다. 따라서 스마트 홈(Smart Home)[1]을 구성하기 위한 여러 가지 미들웨어 제안들이 나오게 되었고, 이것들은 계속 혼재할 것으로 예상되어 실제로 홈 네트워크를 구성하는데 많은 혼란이 예상되고 있다. 본 논문에서는 여러 가지 미들웨어를 통합하는 OSGi(Open Service Gateway Initiative)[2,3]를 기반으로 구성된 스마트 홈 시스템 아키텍처를 제안하여 홈 네트워크 구성에 대한 위험 부담이 적고 신뢰할 수 있는 방법을 제시하고자 한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.22 no.4
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• pp.23-28
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• 2022

Recently smart device(such as smart phone and tablet PC) become a role as an information gateway, using of the web news by multiple users from the web portal has been more important things. However, the quantity of creating web news on the web makes hard to catch the information which the user wants and confuse the users cause of the similar and repeated contents. In this paper, we propose the news recommend system using the document summarization based on KoBART which gives the selected news to users from the candidate news on the news portal. As a result, our proposed system shows higher performance and recommending the news efficiently by pre-training and fine-tuning the KoBART using collected news data.

• Information and Communications Magazine
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• v.32 no.5
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• pp.31-35
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• 2015

IoT 서비스 사업자, IoT 기기 공급업체 또는 산업분야별로 구축한 IoT 서비스가 파편화돼 가는 상황에서 IoT 플랫폼간 상호운용성(Interoperability) 관련 기술 개발의 필요성이 증대되고 있다. 본 논문에서는 IoT 서비스 플랫폼간의 상호운용성 및 IoT 디바이스간의 상호운용성을 개선하기 위한 플랫폼간 연동(Interworking) 기술 및 개방형 표준 플랫폼 기술 적용 방안을 제시하였으며 사용 편의를 위한 상황인식(Context-Awareness) 기술 구현안을 제시하였다. 본 논문에서는 모다정보통신이 개발한 oneM2M 국제표준 기반의 지능형 IoT 플랫폼인 OMNIPASS와 다양한 IoT 플랫폼 간의 상호연동성을 지원하는 IoT Gateway장치로서 Smart Brain을 소개하고 이를 통해 IoT 서비스의 발굴과 다양한 산업 응용 분야의 확산을 도모하고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.137-138
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• 2016

본 논문에서는 고유가와 기후변화의 시대인 21세기에 따라 에너지 사용량, 시설관리 비용을 절감하고자 OSGi기반 플랫폼인 openHAB을 이용 상황인지 자동화 건물관리 시스템을 개발하고자 한다. 개인화 디바이스에서 사무실 제어 할 수 있으며 상황에 따라 사물들을 자동화 제어 한다.