• The Journal of Bigdata
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• v.7 no.1
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• pp.113-124
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• 2022

Various methods using machine learning and big data have been applied to prevent failures in Data Centers. However, there are many limitations to referencing individual equipment-based performance indicators or to being practically utilized as an approach that does not consider the infrastructure operating environment. In this study, the performance indicators of individual infrastructure equipment are integrated monitoring and the performance indicators of various equipment are segmented and graded to make a single numerical value. Data pre-processing based on experience in infrastructure operation. And an ensemble of RRCF (Robust Random Cut Forest) analysis and Prophet analysis model led to reliable analysis results in detecting anomalies. A failure analysis system was implemented to facilitate the use of Data Center operators. It can provide a preemptive response to Data Center failures and an appropriate tuning time.

• Journal of Satellite, Information and Communications
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• v.6 no.2
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• pp.112-116
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• 2011

Effect analysis tool for space infrastructure has a role to give essential information which is needed to perform research systematically as effect analysis for satellites on earth orbit due to solar burst and statistical analysis for deriving key factor which is occurred anomalies to satellite. And retrieval function which is able to search domestic and foreign research data such as paper, report, journal and book related to satellite anomaly is also included. So this tool will be provided research environment for effect analysis from space environment to space infrastructure of earth orbit satellite. In this paper, it is shown design result for effect analysis for space infrastructure including DB design.

• Electronics and Telecommunications Trends
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• v.31 no.1
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• pp.86-98
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• 2016

초연결 사회는 Information & Communication Technology(ICT)를 바탕으로 하는 만물인터넷 또는 사물인터넷으로 사람, 프로세스, 데이터, 사물이 서로 연결되어 지능화된 통신인프라를 통해 새로운 가치와 혁신의 창출이 가능해지는 사회로 변화하게 된다. 이러한 초연결 사회의 유무선 통신서비스를 단일 통신인프라에서 제공할 수 있는 기술이 필요하다. 이를 구현하기 위해서는 분산된 네트워크 장비들을 소프트웨어적으로 용이하게 통합운영 관리할 수 있는 Software Defined Networking(SDN) 기술과 컴퓨팅, 서버 스토리지 및 네트워크 자원을 가상화하고, 오픈 인터페이스를 통하여 소프트웨어적으로 네트워크 기능제어가 가능한 Network Functions Virtualization(NFV) 기술에 의한 지능형 융합 통신인프라가 매우 중요하다. 본고에서는 초연결 통신인프라를 위한 클라우드 컴퓨팅 가상화 기술, NFV 기술동향 및 NFV Use Cases에 대한 내용을 통하여 향후 초연결 서비스 제공을 위한 통신인프라 구축 방향을 제시하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.70-71
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• 2016

현재의 소프트웨어 개발 방법론은 소프트웨어 개발에만 국한 되어서 사용되지는 않고 있다. 도리어 인프라 시스템 구축방안에서 사용하는 것이 개발 방법론을 적용하는데 있어 더욱 정확하고, 인프라 시스템 요구분석 기술을 적용하는데 있어서도 개발 방법론이 부족하지 않다. 소프트웨어를 개발하는데 있어서 인도되는 시간을 프로젝트 초기에 산정하기가 매우 어려운 경우가 많지만 인프라 시스템 구축에서는 정확한 인도시간을 산정할 수 있다. 또한 소프트웨어 개발 프로젝트는 성공과 실패에 대한 기준을 설정하기가 모호한 경우가 많지만 인프라 시스템 프로젝트는 성공과 실패에 대한 명확한 기준을 설정 할 수가 있다. 하지만, 이러한 명확한 인프라시스템 구축에 있어 소프트웨어 개발 방법론을 적용시키는 경우는 거의 없다. 시스템 엔지니어의 시선으로는 소프트웨어 개발 방법론은 개발자만이 지켜야 하는 것이라는 생각이 크다. 이러한 문제를 해결하고, 인프라시스템 구축 방법에 소프트웨어 개발 방법론을 적용시켜서 표준화 하는 방법을 테스트 하였다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.1
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• pp.103-109
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• 2016

The information security industry is technology-intensive, high value-added industries. South Korea's response has excellent ICT skills and experience and skills in a variety of cyber attacks, has become a benchmark in the world. However, the small size of the domestic information security company, supporting infrastructure is lacking. Domestic information security industry is the primary condition to activate the export. For the export of high value-added enterprise information security products and services, it is necessary the establishment of the domestic IT information security infrastructure of the industrial promotion is based overseas. Come to analyze the domestic information security industry, capital of this small, market reclamation of overseas expansion, information, manpower shortage was a problem. This fact, combined losses caused by cost-free period AS. Therefore, the study on information security in the infrastructure industry overseas bases is necessary. How to select and analyze the causes of infrastructure in selected overseas offices. By utilizing the infrastructure of overseas bases, can raise the added value of the products and services of the Information Security company, we can enable the export of small and medium Information Security company from overseas offices.

• Journal of the Korean Association of Geographic Information Studies
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• v.26 no.4
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• pp.116-129
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• 2023

Recently, interest in autonomous driving has drawn attention to autonomous cooperative driving, which considers the development of driving technology of autonomous vehicles and the development of infrastructure that constitutes a driving environment. According to the concept of autonomous cooperative driving, This study analyzes the new infrastructure for autonomous driving that can complement the information of existing precise road maps and adding HD map layer as the new infrastructure. The new infrastructure for autonomous driving presented two types of improved facilities and one type of sensor only facility. Analysis of HD maps shows that information such as junction points rarely changes, but it is expected that infrastructure for autonomous driving can be added to convey the meaning of paying attention to obstacles that may arise at the junction. In this way, the new infrastructure for autonomous driving needs to support the roles of guidance, instruction, and attention that existing road facilities.

• Journal of Internet Computing and Services
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• v.20 no.2
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• pp.51-59
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• 2019

In this paper, we analyzed the relationship between charging operation system and electricity charges connected with charging infrastructure among data of many demonstration projects focused on electric vehicles recently. At this point in time, due to the rapid increase in demand for the electric charging infrastructure that will take place in the future, we can prepare for an upcoming era in the sense of forecasting the demand value. At the same time, demonstrating and modeling optimized system modeling centering on sites is a prerequisite. The modeling based on the existing small - scale simulation and the design of the operating system are based on the data linkage analysis. In this paper, we implemented a new optimized system modeling and introduced it as a standard format to analyze time - dependent time - divisional data for each vehicle and user in each point and node. In order to verify the efficiency of the optimization based on the data linkage analysis for the actual implemented electric car charging infrastructure and operation system.

• The Journal of the Korea institute of electronic communication sciences
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• v.2 no.1
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• pp.52-61
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• 2007

The u-City is next generation IT-City which is to enhance the quality of life and convenience of life base on merger up-to-date communication infrastructure with u-IT services. To realize u-City, intelligent building is built for citizens to make a space of comfortable life. The intelligent building is possible to be constructed by communication infrastructure for various U-services. This paper mentions the ranges of communication infrastructure and shows how to construct it each range through regulation, law and technical. Lastly, the topics are suggested to build successfully u-City constructions in Korea.

• Electronics and Telecommunications Trends
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• v.36 no.4
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• pp.48-60
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• 2021

Following the global air-traffic market growth outlook, urgency of technical development is needed in responding to changes in the international air-traffic management paradigm and to prepare technology securing and spreading strategies, which are consistent with systematic aviation weather service policies and evolution direction. Although air traffic has decreased significantly due to COVID-19, normalcy is expected from 2024, as announced by IATA. According to the future air transportation market outlook and development trends of related technologies, Korea has established and implementing the next-generation air transportation system construction plan(NARAE) to secure international competitiveness and leadership in the future. Therefore, this paper describes the technical, economic background and requirements of numerical model-based aviation weather R&D projects for successful implementation of domestic NARAE plans and providing aviation safety and air traffic service efficiency. Furthermore, we proposed numerical-model-based technology development content, strategies and detailed load-map.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.11-14
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• 2018

본 논문에서는 다양한 과학기술 분야의 연구자들이 R&D 수행에 있어서 필요한 인프라로서 클라우드 서비스를 활발히 이용하도록 하기 위해서 요구되는 정책적 기술적 개선 방안을 도출하였다. 이를 위해서 R&D를 위한 클라우드 서비스의 해외 사례를 조사하고, 국내 출연(연) 대학 등 연구현장의 다양한 분야의 연구자들로부터 클라우드 서비스에 대한 인식 조사 및 수요 분석을 실시하였다. 이러한 조사 분석 결과 과학기술 및 공학 ICT 등 다양한 분야의 연구에서 요구되는 수요를 충족할 수 있는 클라우드 서비스의 필요성을 도출하였으며, 보안 및 행정제도 등에 있어서도 개선점을 도출할 수 있었다. 연구를 통하여 우리는 국가 R&D를 수행하는 연구자들이 기존 클라우드 서비스에 대한 제약을 해소하고 더 나은 연구환경을 지원받도록 하기 위한 R&D 사이버인프라스트럭쳐로서의 클라우드 서비스를 제안하였다.