• 한국공간정보시스템학회:학술대회논문집
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• 2002.03a
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• pp.22-28
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• 2002

지리정보시스템에서 사용되는 공간데이터의 특성은 양이 방대하고 구조가 복잡하여 데이터를 구축하는데 많은 비용과 노력이 요구된다. 또한 각 지리정보 응용시스템마다 특정한 포맷으로 데이터를 구축, 사용하는 실정 때문에 기존에 동일한 데이터가 구축이 되었더라도 재사용하지 못하고 다시 재 구축하여 사용하였다. 대부분의 지리정보 응용시스템에서 기존의 데이터를 재 사용지 못하고 전체 예산의 60% 이상을 데이터 구축에 중복 투자하는 문제점이 존재한다. 또한 데이터구축의 문제점뿐만 아니라 소프트웨어적으로 시스템 환경에 의존적으로 구현되어 시스템 환경이 변하는 경우에 시스템 자체가 수정되거나 재 구현되어야 하는 문제점도 존재하였다. 본 논문에서는 이러한 데이터 중복구축 및 투자와 시스템 의존적인 구성의 문제점들을 해결하기 위해 기존에 존재하는 데이터를 온라인상에서 검색하여 사용자가 재 사용할 수 있도록 OpenGIS에서 제안한 CatalogService를 구현하고 분산된 상호 이질적인 환경에서 서로의 데이터를 공유하고 연동하는 모델을 제안하고 구현하기 위해 WWW, COM, CORBA 기반으로 시스템을 구현하였다.

• Journal of Digital Convergence
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• v.10 no.11
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• pp.419-425
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• 2012

In these days, the trends of home networking system is implementation of easily configured system with home security of emergency alarm and visitor verification services. In this paper, we implemented push server system based on Arduino of open source physical computation platform to verify visitors for the homes without home networking services. In the suggested system, visitor verification is performed in and out of home, and home access security of the system could be constructed with low-cost price by use of windows push server system and smart devices with alarm operation in corresponding to not allowed access trying.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.8
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• pp.1827-1834
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• 2013

The existing PC-based desktop environment is being changed to a server-based virtual desktop environment due to various advantages such as security, mobility, and upgrade cost reduction. In this paper, a virtual computing lab service system which is applicable to the existing computer lab is designed and implemented using both an open source-based cloud computing platform and hypervisor. In addition, a node power scheduler is proposed in order to reduce power consumption in a server farm. The experimental results show that the power scheduler reduces power consumption considerably over the server farm without the power scheduler.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.199-201
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• 2015

국방 분야에서 전술작전센터를 구성하는 전술작전통제 플랫폼은 다양한 내/외부 체계 시험 장치를 연동하여 교전/작전 통제를 수행하는 플랫폼이다. 기존의 전술작전통제 플랫폼은 서로 다른 환경에서 개발된 시험 장치 소프트웨어를 통합 구축하는데 어려움이 있으며, 플랫폼을 구성하는 서버 자원의 탄력적 분배가 불가능하다. 본 연구는 전술작전센터를 구성하는 전술작전통제 플랫폼을 오픈스택 클라우드 및 KVM 하이퍼바이저를 기반으로 구축하여 내/외부 체계 시험 장치 소프트웨어의 실행 환경을 가상 머신으로 제공하였으며, 가상 머신 간 고속 데이터 통신을 위해 데이터 분산 서비스 및 10Gbps 이더넷, QDR 인피니밴드 네트워크를 활용하였다. 또한 오픈스택 클라우드 기반 전술작전통제 플랫폼의 네트워크를 구성하는 10Gbps 이더넷 및 QDR 인피니밴드 네트워크상에서 데이터 분산 서비스의 성능 평가를 수행하였다.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.34 no.11
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• pp.95-104
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• 2018

Healthcare technology has been growing and fostering cooperation between industry, university and hospitals as growth engines in korea. So, the medibio research institutes in hospital have been constructed to promote research and industrialization centering on healthcare technology. The purpose of this study is to investigate the cases of research institutes in hospitals, and search the characteristics of building organization of medibio research laboratory facilities. Case study is investigated by floor plan, homepage and site visits about five research institutes selected in research-driven hospitals. The facility title and size of research laboratory is originated from site area and research building location. The building function include not only the research lab and business office reflecting on the development platform, and but assembly and meeting room in the ground level. Laboratory floor plans have three types, rectangular, rectangular+linear and linear type, one is traditional and efficient, the others are people and friendly. And building core types are correlated with lab space unit modules, single and double side core are shown in rectangular type. All the laboratories are open lab, composed with laboratory bench and research note writing desk facing the lab service and enclosed lab-support area. And they have communication space looking as warm and cozy common area for the innovation, convergence and collaboration. As the high risk of contamination and high standard for safety and security, equipment and facilities are well managed with biological environment including BSC, fume hood, PCR classification, eye washing and emergency shower.

• KIPS Transactions on Computer and Communication Systems
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• v.11 no.12
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• pp.461-468
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• 2022

Development of the big data industry, the cases of providing data utilization services on digital platforms are increasing. In this regard, research in data-related fields is being conducted to apply the FAIR principle that can be applied to the assessment of (meta)data quality, service, and function to data quality evaluation. Especially, the European Open Data Portal applies an assessment model based on FAIR principles. Based on this, a data maturity assessment is conducted and the results are disclosed in reports every year. However, public data portals do not conduct data maturity evaluations based on metadata. In this paper, we propose and evaluate a new model for data maturity evaluation on a big data platform built for multiple domestic public data portals and data transactions, FAIR principles used for data maturity evaluation in Europe's open data portals. The proposed maturity evaluation model is a model that evaluates the quality of public data portal datasets.

• Journal of Digital Convergence
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• v.13 no.7
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• pp.9-21
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• 2015

Nowadays, within the paradigm shift of e-learning, MOOCs service has been expanded among a number of global leading universities and this has affected our domestic universities' e-learning to look for different possibilities and new challenges. In consideration of our domestic educational condition, it is required to contemplate how university e-learning can be changed and developed with focus on MOOCs from the perspective of convergence development. This study suggests plans for convergence development in university e-learning based on MOOCs with conceptual model. We conducted the studies on relevant literature of university e-learning and MOOCs, expert consultation, SWOT analysis, survey for those involved of e-learning centers, etc. Through this process, we developed a final plan which integrates 'open advanced education course service', 'teaching and learning curation service', 'teaching and learning practice service', 'creative teaching and instruction method development and sharing service', and 'cloud based educational platform support service', etc with the perspective of convergence development. Also we designed convergence development plan based on MOOCs. It is assumed that the result of this research provides advanced plans for development of university e-learning and the base for further discussion of introduction and application of MOOCs service in domestic university.

• Journal of the Korean Association of Geographic Information Studies
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• v.21 no.1
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• pp.96-105
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• 2018

The V-world, Spatial information open platform map service, provides various national spatial data. Recently, with the development of IT technology, demand for 3D geospatial data that can be merged with new industries such as Internet of Things(IoT) and autonomous vehicles is increasing. Because 3D geospatial data is large and complex, many computer resources are used to provide map services. Most of the 3D map services, such as Vworld, are constructed binary data in consideration of performance. However, this type of data is incompatible because it is difficult to use in other services if there is no precise understanding of the specification. In this paper, we propose a data serialization method to improve the compatibility of new Vworld 3D format which is constructed in binary form. The performance of binary data and serialized binary data is tested and compared. As a result, it is expected that the data using the serialization technique will be similar to the binary data and contribute to improve compatibility.

• Journal of the Korea Society of Computer and Information
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• v.25 no.11
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• pp.51-58
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• 2020

Most of the students in computer-related departments work on projects, and it is essential to use a database for project execution. To use such a database, it is necessary to install a Database Management System. However, it takes several minutes (hours) to install a DBMS, and some DBMS require a difficult installation process. Therefore, in order to solve this problem, this study proposed a system that can easily install DBMS using Docker. Docker is an open source project that automates the deployment of Linux applications into software containers. Docker Container is wrapped in a complete file system that includes everything necessary for the execution of software, and includes code, runtime, system tools, system libraries, and anything that is installed on the server. This guarantees that they will always run the same regardless of the environment in which they are running. After creating a database using this proposed system, you can check the database access information on the web and check the server status in minutes. As a result of of implementing this proposed system and applying it to the projects of 10 teams, the installation time was reduced by 94.5% for Maria DBMS and 98.3% for Oracle DBMS than individual installation, confirming improved efficiency.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.581-584
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• 2005

에이전트 시스템(agent system) 관련 기술은 이질적이고 분산된 환경에서 상호 운용성(interoperability)을 확보하기 위한 방법이 될 수 있다. 이런 에이전트 시스템의 국제 표준화를 진행해 나가고 있는 단체인 FIPA(Foundation for Intelligent Physical Agents)는 1996년 에 형성되었고, 이질적인 시스템간의 상호 운용성을 최대화하기 위해서 국제적으로 인정된 명세서를 정기적으로 발표하고 있다. 하지만 최근까지 FIPA 표준안은 모바일 ad-hoc네트워크와 같은 환경을 고려하지 못하고 있다. 이러한 환경에서 에이전트는 이질적인 네트워크들에서 제공하는 서비스들을 이용할 수 없다. 이러한 문제점에 초점을 맞추어 본 논문에서는 FIPA 표준을 참고하여 만든 FIPA-OS(Foundation for Intelligent Physical Agents Open Source) 를 수정한 에이전트 플랫폼을 제공한다. 우리는 이러한 에이전트 플랫폼을 이용하여 이질적인 환경에서 제공하는 서비스들에 대한 상호운용성과 에이전트 플랫폼 안에 DM(Discovery Middleware)을 추가하여 확장성을 보장한다. DM은 에이전트가 ad-hoc 네트워크 안에서 동작하는 서비스 디스커버리 기법들을 사용하여 서비스들을 찾고 생성할 수 있게 도와준다. 우리는 다양한 서비스 디스커버리 기법 중 UPnP (Universal Plug and Play)와 LSD (Lightweight Service Discovery Protocol)를 이용하여 DM을 구현하였다. UPnP는 UPnP 포럼에서 개발된 서비스 디스커버리를 위한 프로토콜의 집합이며 LSD는 우리가 만든 모바일 ad-hoc 네트워크에서 동작하는 새로운 서비스 디스커버리 프로토콜로 캐쉬 관리를 강조하여 개발하였다. 우리가 제안하는 DM을 이용하여 수정된 에이전트 플랫폼에서 UPnP와 LSD의 장비에서 제공되는 서비스들을 상호간 이용 할 수 있다.