• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.1977-1978
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• 2011

스마트그리드는 기존의 전력망에 정보통신 기술을 융합하여 공급자와 소비자가 양방향으로 실시간 전력 정보를 교환함으로써 에너지 효율을 최적화 하고자 하는 차세대 전력망이다. 기존의 공급자 중심의 일방향성, 폐쇄성, 획일적인 전력망에서 수요자 중심의 양방향성, 개방성을 특징으로 하며 다양한 서비스를 제공하게 된다. 스마트그리드의 운영환경에서의 비즈니스 모델에 따라 기존 서비스 플랫폼과 신규 서비스 플랫폼을 융합할 수 있는 정보통합 체계가 구축되어야 한다. 또한 이종 플랫폼을 융합할 수 있는 적응 모듈이 체계적으로 설계되어야 하며, 이종 체계간 상호운용성 확보는 필수사항이다. 한편 우리나라는 기후변화 등 범 세계적인 이슈에 대응하기 위하여 저탄소 녹색성장, 에너지 효율향상 및 신성장 동력 창출을 위하여 국가 전략 로드맵을 수립하고 국가 단위의 실증사업을 통한 선제적 대응에 총력을 다하고 있다. 실제로 국가 로드맵과 실증사업은 지능형 전력망, 지능형 소비자, 지능형 운송, 지능형 신재생, 지능형 전력서비스의 5개 분야의 응용서비스 영역 기반으로 나누어져 각각의 서비스 플랫폼 구조를 가지고 있으며, 이에 대한 스마트그리드 플랫폼 통합 체계 기술은 스마트그리드의 핵심 기술이다.

• The Journal of Korean Association of Computer Education
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• v.14 no.4
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• pp.11-20
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• 2011

Recently, the interests of mobile GIS(Geographic Information System) technology is increasing with the spread of wireless network, the improvement of mobile device's performances and the growth of demands about mobile services. If we refer mobile GIS system classified as 3rd generation with the success of Web 2.0, it is suggested that supplies of information from the server side couldn't enhance users' participations and the usage of service. In this study, we suggested the model of GIS 2.0 application based on Google map for Android smart-phones, which users could make, save and share information using photos and text by themselves. We were able to grasp the expectation of GIS 2.0 by expert assessment of this application and got to the core of conditions and implications for the success of GIS 2.0.

• Design Convergence Study
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• v.14 no.2
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• pp.17-32
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• 2015

The perspectives of customers and providers as for the services have the same objective; however, perspectives and objective are distinctly different. But the existing methodologies have mostly pondered only based on the customer-centric perspective or separately from the perspective of providers. It would be necessary to take these two perspectives as a whole by combining them into one perspective since they not only have differences but also common points. Therefore, in this study suggested the System Journey Map in terms of internal staff based on the customer's task in service. System Journey Map is consists of four parts : a customer journey map, thus the performance of internal staff, internal staff satisfaction evaluation, and finally the performance of internal staff assessment of the senior staff. After releasing a service, with customers and internal staff made a point of contact to identify specific behavioral patterns and whether any part of the problem so that this toolkit gives us an expectation to be a useful map, which is the intangible being placed in service, not just visualize and understand for identifying problems.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2003.12a
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• pp.340-347
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• 2003

정보보호 기술 표준화는 인터넷 등의 급속한 발전에 따라 전자상거래 등의 응용 서비스와 새로운 무선 및 이동 인터넷 서비스를 여러 위협요소로부터 보호하는데 목적이 있다. 인터넷을 통해 유통되는 정보나 컴퓨터의 정보 자산을 보호하기 위한 요구사항으로 기밀성 서비스, 무결성 서비스, 인증 서비스, 그리고 액세스 제어 서비스들이 요구되고 있다. 따라서 정보보호 시스템간의 상호 연동성을 가능케 하고, 안전한 지식기반 정보화사회 구축을 위해서 정보보호 기술 요소들의 표준화 분석은 반드시 필요하다.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.7
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• pp.728-732
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• 2008

GeoRSS is RSS which contains geospatial information, and it supports to supply diverse kinds of data through mash-up map service like the google map. It helps to implement efficient web service with simple java-scripts, but sometimes initial page loading takes too much time and causes heavy traffic when it includes lots of multimedia data. In this paper, we propose a splitting method of GeoRSS for fast accessing. As the result of experiments, we achieved improvement of browsing speed and reducing of initial data traffic.

• The Korean Journal of Archival Studies
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• no.19
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• pp.57-102
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• 2009

Recently, distribution of record via web and coefficient of utilization are increase. so, Archival information service using website becomes essential part of record center. The main point of archival information service by website is making record information retrieval easy. It has need of matching user's request and representation of record resources correctly to making archival information retrieval easy. Archivist and record manager have used various information representation tools from taxonomy to recent thesaurus, still, the accuracy of information retrieval has not solved. This study constructed record retrieval system based on Topic Map by modeling record resources which focusing on description metadata of the records to improve this problem. The target user of the system is general web users and its range is limited to the president related sources in the National Archives Portal Service. The procedure is as follows; 1) Design an ontology model for archival information service based on topic map which focusing on description metadata of the records. 2) Buildpractical record retrieval system with topic map that received information source list, which extracted from the National Archives Portal Service, by editor. 3) Check and assess features of record retrieval system based on topic map through user interface. Through the practice, relevance navigation to other record sources by semantic inference of description metadata is confirmed. And also, records could be built up as knowledge with result of scattered archival sources.

• Journal of Korea Multimedia Society
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• v.13 no.5
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• pp.710-721
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• 2010

Recently, for the advancement of embedded technology about mobile device, a new kind of service, mash-up is appeared. It is service or application combining multimedia content making tool or device and web-GIS(geographic information system) service in the mobile environment. This service can be ease to use for casual user and can apply in various ways. So, It is served in web 2.0 environment actively. But, in the mashup service, because generated multimedia contents linked with web map are new type of multimedia contents which include user's migration routes in the space such as GPS coordinates. Thus, there are no protection ways for intellectual property created by GIS web-map service users and user's privacy. In this paper, we proposed a location and user information hiding scheme for GIS web-map service. This scheme embeds location and user information into a picture that is taken by camera module on the mobile phone. It is not only protecting way for user's privacy but is also tracing way against illegal photographer who is peeping person through hidden camera. And than, we also realized proposed scheme on the mobile smart phone. For minimizing margin of error about location coordinate value against contents manipulating attacks, GPS information is embedded into chrominance signal of contents considering weight of each digit about binary type of GPS coordinate value. And for tracing illegal photographer, user information such as serial number of mobile phone, phone number and photographing date is embedded into frequency spectrum of contents luminance signal. In the experimental results, we confirmed that the error of extracted information against various image processing attacks is within reliable tolerance. And after file format translation attack, we extracted embedded information from the attacked contents without no damage. Using similarity between extracted one and original templete, we also extracted whole information from damaged chrominance signal of contents by various image processing attacks.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.6
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• pp.11-19
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• 2018

Recently, many companies offer various web-based map that is based on GIS(Geographic Information System) information. Google Map, Open street, Bing Map, Naver Map, Daum Map, Vwolrd Map, etc are the few examples of such system. In this paper, we propose a method to visualize ocean forecasting model data considering the flow diagram of tidal current, streamline expression algorithm, and user convenience by using vector field data information that is currently being served. It is confirmed that the proposed method of the flow diagram of tidal current, and stream line expression algorithm is faster than that of conventional ocean prediction model data by more than 2 times.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.05a
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• pp.19-19
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• 2018

해양치유자원을 이용하여, 제공되고 있는 해양치유 프로그램은 이용 목적에 따라 다양한 형태로 서비스 되고 있다. 국내는 최근에서야 해양치유자원에 대한 임상적 연구를 토대로 신산업으로 발전시키고자 다양한 연구가 진행 중에 있으며, 제도화를 위한 체계적 기초연구의 필요성이 대두되고 있다. 따라서 본 연구에서는 해양치유산업화를 위한 기초연구로서 현재 해외 해양치유센터에서 운영되고 있는 해양치유 프로그램 마인드맵을 활용하여 유형별로 분석하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.595-596
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• 2023

본 논문에서는 컨테이너 오케스트레이션 플랫폼에 대하여 분석하고자 한다. 공공 클라우드 전환 로드맵 검토에 따라 클라우드 네이티브 전환을 위한 기술로 컨테이너, 마이크로서비스, 컨테이너 오케스트레이션의 중요성이 강조되고 있다. 대표적인 컨테이너 오케스트레이션 도구인 Kubernetes, Docker Swarm, Mesos를 비교하며, 이들의 초기 설치 용이성, 볼륨 관리, 애플리케이션 배포, 장애 관리 등에 대해 분석하고, 이를 통해 각 도구의 장단점과 적용 상황에 따른 고려사항을 파악함으로써, 클라우드 네이티브 전환 로드맵 수립에 도움을 제공하고자 한다.