• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.2
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• pp.203-210
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• 2015

The ecological environment monitoring system configured with Sensor Node, Gateway, Service Platform, and Web Browser. In this paper, we designed gateway resource tree and service function to do handling in the ecological environment monitoring service. Gateway Service Function based on oneM2M Common Service Function, Gateway Resource Tree configured with Application Part handling Sensor Data and Gateway link handling. lastly Device Registration, Sensing, Control, Profile Management.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2006.10a
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• pp.56-62
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• 2006

This thesis researches on the application of computer, modern communication, GIS, GPS, AIS and World-Wide-Web in the field of navigation-aids information system, and has realized an integrated system consisted of navigation-aids information GIS platform, navigation-aids monitoring system and navigation-aids information distribution system. This system has strong integration capability, and has realized navigation-aids information distribution based on WEBGIS at the first time. It strongly promotes navigation-aids daily management and maintenance, and this system provides technique guarantee fur ships and marine departments to acquire navigation-aids information in time, by rule and line expediently.

• Information and Communications Magazine
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• v.30 no.10
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• pp.79-85
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• 2013

By interacting with external wireless sensors, smartphones can gather high-fidelity data on the surrounding environment to develop various environment-aware, personalized applications. In this work we introduce the sensor virtualization module (SVM), which virtualizes external sensors so that smartphone applications can easily utilize a large number of external sensing resources. Implemented on the Android platform, our SVM simplifies the management of external sensors by abstracting them as virtual sensors to provide the capability of resolving conflicting data requests from multiple applications and also allowing sensor data fusion for data from different sensors to create new customized sensors elements. We envision our SVM to open the possibilities of designing novel personalized smartphone applications.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2002.05a
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• pp.133-136
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• 2002

In maned airport, crews may have risks as they manage passenger control system in IPMS in damage situations such as fire in a airport. So the application of unmanned autonomous system can reduce the number of boarding crews and attribute to safe airplane transportation. PBBC model can be used to obtain control strategy, and airplane and enhance operators' skill by simulating the airport. The paper suggests an intelligent system of the pbbc control using microprocessor in integrated platform management system which can take measures against passenger situation of a airplane excluding unnecessary warnings with undamaged situations. The system here detected the passenger more accurately and adopted more appriate measures according to airplane status compared with conventional systems.

• Journal of Sensor Science and Technology
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• v.24 no.5
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• pp.299-305
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• 2015

Since the natural disasters such as floods, droughts, heat wave and cold wave are increasing, the need for risk management is necessary to minimize the damage with utilizing IT technology. Also, the monitoring services of disaster response type have been developed and applied. Recently, the open source hardware based on the signal of the sensor, or the monitoring studies have been carried. In this paper, by analyzing a low-cost open source hardware platform such as Beagle board, we examine the utilization of the hardware-based module for sensor monitoring.

• Industrial Engineering and Management Systems
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• v.2 no.1
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• pp.45-54
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• 2003

Enterprise Resource Planning(ERP) systems offer pervasive business functionality the applications encompass virtually all aspects of the business. Understanding and managing this pervasiveness will result in a successful and productive business application platform. Because of this pervasiveness, implementations have ranged from great successes to complete failures. This article has two distinctive parts. The first proposes and discusses a systematic process based on consulting experiences of LG CNS (leading information system company in Korea) for ERP selection. Also, the second provides the key factors that are critical to the successful implementation of ERP. The second part reports the results of a study carried out to assess a number of different ERP implementations in different organizations. A case study method of investigation was used, and the experiences of five Korean manufacturing companies were documented. The critical factors in the adoption of ERP are identified as: learning from the experiences of others, appointment of a process innovator, establishment of committees and project teams, training and technical support for the users, and appropriate changes to the organizational structure and managerial responsibilities.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.682-684
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• 2004

IT 산업이 발전하고, 제한된 리소스를 탑재한 소형 기기들의 사용이 증가함에 따라, 이러한 소형 기기들의 성능을 극대화하고 안정된 서비스를 제공하기 위한 다양한 핵심 소프트웨어 플랫폼들이 제안되고 있다. 자바는 플랫폼 독립성(Platform Independency), 보안성(Security), 네트워크 이동성(Network Mobility) 둥의 장점을 가지고 있어, 많은 분야의 소형 기기들에서 핵심 소프트웨어 플랫폼으로 채택되고 있다. 임베디드 장치나 모바일 같은 제한된 리소스를 사용하는 기기들은 자바의 소프트웨어 플랫폼중의 하나인 K 가상 머신(K Virtual Machine: KVM)을 탑재하여 사용하고 있다. 본 논문에서는 제한된 리소스를 사용하는 소형 기기의 KVM 에서 좀 더 효율적으로 힙 메모리 관리를 하기 위한 MCCL(Mark-Compact-Compress-Lazy Allocate) 가비지 콜렉션 기법을 설계하고 구현한 내용을 설명한다.

• Journal of KIISE:Computer Systems and Theory
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• v.26 no.5
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• pp.609-619
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• 1999

본 논문은 멀티캐스트 통신환경의 관리 문제들을 해결하기 위한 통합관리 플랫폼(IPME)을 기술한다. IPME는 멀티캐스트 통신환경을 관리하기위해서 전형적인 망 관리 기법을 적용하여 기존의 멀티캐스트 환경의 문제들을 해결하기위한 플랫폼이다. 본 논문은 멀티캐스트 통신환경의 문제점을 분석하고, 관리플랫폼의 구현을 위한 설계시 고려 요건들을 기술한다. 또한 이를 기반으로 멀티캐스트 통신환경을 통합관리하기 위한 관리플랫폼의 구조를 제안한다. 제안된 구조를 검증하기 위해서 IPME는 멀티캐스트 통신환경에서 중요한 문제로 대두되고있는 다자간 응용에 대한 서비스 질의 관리 구조 (IPME-QoS) 로 확장된다. 확장의 IPME-QoS 의 구현을 위해서 제공 서비스 정의, 구성 모듈들의 설계, QoS 설정단계, QoS 관리 정책 알고리즘 및 관리구조 등을 구체적으로 기술한다. IPME-QoS 의 타당성을 검증하기 위해서 최근 멀티캐스트 통신환경 서비스를 이용하는 대표적인 응용인 화상회의 시스템의 QoS관리에 적용한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.530-533
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• 2014

IT 산업의 발전과 함께 Big-Data 와 보안은 빠른 속도로 발전하고 정보보호를 위해 다양한 시스템을 구축하는 것보다는 이를 연계하고 활용하는 것이 중요한 시대가 도래하였다. 한 기업이 가지고 있는 기업정보유출사고 등 다양한 해킹공격 또한 꾸준하게 증가되고 있다. 더불어 경제적 사회적인 손실이 증가되면서 국가 및 기업 상위 감사 기관은 정보보호 관련 법 제도를 제정하고 이를 강화하여 개정 하고 있다. 하지만, 물리적, 관리적, 기술적으로 연계된 통합 보안 관리 체계가 제대로 구현되지 않는다면 다양한 취약점을 통하여 기업 정보는 언제든 유출 될 수 있다. 본 논문에서는 기업에서 기 운영중인 정보보안 솔루션과 물리보안 솔루션이 효과적으로 통합 보안 관제가 가능한 IMP 플랫폼 구성설계 방안과 불법 침입 및 보안 사고 탐지를 위한 복합시나리오 설계 방안을 제시하여 실 적용 효과를 알아보고 향후 연구 방향을 제시하고자 한다.

• Journal of Information Processing Systems
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• v.1 no.1 s.1
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• pp.86-95
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• 2005

Location-based services or LBS refer to value-added service by processing information utilizing mobile user location. With the rapidly increasing wireless Internet subscribers and world LBS market, the various location based applications are introduced such as buddy finder, proximity and security services. As the killer application of the wireless Internet, the LBS have reconsidered technology about location determination technology, LBS middleware server for various application, and diverse contents processing technology. However, there are fears that this new wealth of personal location information will lead to new security risks, to the invasion of the privacy of people and organizations. This paper describes a novel security approach on open LBS service to validate certificate based on current LBS platform environment using XKMS (XML Key Management Specification) and SAML (Security Assertion Markup Language), XACML (extensible Access Control Markup Language) in XML security mechanism.