• Annual Conference of KIPS
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• 2002.11c
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• pp.1697-1700
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• 2002

이질적인 정보 저장소를 통합하여 질의하고 검색하는 시스템들에 대한 연구가 최근 들어 XML을 기반으로 활발히 연구되고 있다. 본 논문에서는 XML 에 기반한 DB 통합 미들웨어로서 DataBlender 시스템을 소개하고 이 시스템의 한 블록으로서 무선 환경을 지원하기 위해 개발된 DataBlender.s 의 설계 및 구현에 관해 기술한다. DataBlender.s 는 동기화의 표준 언어인 SyncML 1.0을 기반으로 개발되었으며 본 논문에서는 DataBlender.s 의 모듈 구조, 타 모듈과의 연동, 동기화 처리 과정, 동기화 정보 관리 등을 기술한다.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.268-271
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• 2004

Today, the vehicle is used the mean of transportation as well as the mobile office with the third digital life space. So telematics is an emerging industry that has tremendous future potential. It is necessary the essential contents for telematics services : navigation map for navigation, POI, real-time traffic information etc. In this paper, we proposed the telematics contents server to manage the telematics contents with efficient performance in distributed environment. The telematics contents server transforms and stores the essential contents and provide it to user through standard interface. The telematics contents server is middleware to offer a rapid essential telematics contents management, client connectivity, and communications. It is useful for the telematics service provider to build telematics system under distributed environment.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1112-1114
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• 2005

Core position of the M2M (Machine to Machine) is device integration fusion using an emerging wireless and next internet technologies as well as IEEE 802.x, Bluetooth, Zigbee, DMB, Wibro etc. for ubiquitous environment that is complementary with IT839 strategy from Ministry of Information & Communication. This paper define and deploy about major functional requirements of M2M devices and middleware for how to it works, worldwide M2M technology trend & activities with its current & future application in manufacturing area that is called u-Manufacturing (Ubiquitous Manufacturing).

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.273-276
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• 2015

홈 네트워크는 가정 내에서 여러 기기들을 유 무선으로 연결 후 네트워크를 구성하여 서로 데이터를 공유한다. 가정 내 기기들은 컴퓨팅 기능이 저하되기 때문에 보안취약점을 이용한 사이버 범죄에 노출되어 있다. 따라서 사이버 범죄 및 개인정보의 유출을 방지하기 위해 유 무선 보안취약점 및 대응방안을 파악할 필요가 있다. 본 논문은 홈 네트워크의 보안 개선을 위해 미들웨어의 보안기능 및 홈 네트워크의 보안취약요인을 분석하고, 보안취약점 개선 방안을 제안한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.549-552
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• 2011

RFID technology is one of the verification technology that use radio frequency. Use and study of RFID are on the increase because RFID is a one of main technologies in ubiquitous. In this paper, we address to develop a Record Processing System using RFID. The purpose of this paper is improvement of accuracy and efficiency on Record Processing System by applying RFID. Later, This paper will be able to help to establish of u-Campus.

• Journal of information and communication convergence engineering
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• v.18 no.3
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• pp.183-187
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• 2020

The general Wi-Fi network connection structure is that a number of IoT (Internet of Things) sensor nodes are directly connected to one AP (Access Point) node. In this structure, the range of the network that can be established within the specified specifications such as the range of signal strength (RSSI) to which the AP node can connect and the maximum connection capacity is limited. To overcome these limitations, multiple middleware bridge technologies for dynamic scalability and load balancing were studied. However, these network expansion technologies have difficulties in terms of the rules and conditions of AP nodes installed during the initial network deployment phase In this paper, an intelligent edge computing IoT device is developed for constructing an intelligent autonomous cluster edge computing network and applying it to real-time road danger context aware and notification system through an intelligent risk situation recognition algorithm.

• Journal of Communications and Networks
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• v.8 no.4
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• pp.378-390
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• 2006

Many distributed applications build overlays on top of the Internet. Several unsolved issues at the network layer can explain this trend to implement network services such as multicast, mobility, and security at the application layer. On one hand, overlays creating basic topologies are usually limited in flexibility and scalability. On the other hand, overlays creating complex topologies require some form of application level addressing, routing, and naming mechanisms. Our aim is to design an efficient and robust addressing, routing, and naming infrastructure for these complex overlays. Our only assumption is that they are deployed over the Internet topology. Applications that use our middleware will be relieved from managing their own overlay topologies. Our infrastructure is based on the separation of the naming and the addressing planes and provides a convergence plane for the current heterogeneous Internet environment. To implement this property, we have designed a scalable distributed k-resilient name to address binding system. This paper describes the design of our overlay infrastructure and presents performance results concerning its routing scalability, its path inflation efficiency and its resilience to network dynamics.

• Proceedings of the KIEE Conference
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• summer
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• pp.572-574
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• 2004

The configuration of Distribution Automatic System(BAS) is dual servers and raid 5(redundant arrays of inexpensive disks) clustering dual HDD. The DAS has the distributed object-oriented architecture using middleware software(BASEstar), so the number of client nodes has no limitation. Because the DAS is scalable, it can be configured using various application programs and be upgraded easily. The DAS has competitive to export because there are system development and accumulation of technology that coincide in International Standard, using common 05 and DB. This paper describes the structure of DAS hardware and software separately and proposes to improve program to share real time DB efficiently at each node.

• Proceedings of the KIEE Conference
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• 2004.07d
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• pp.2556-2558
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• 2004

반도체와 네트워크 기술의 발전은 산업분야에서의 각종 컴퓨팅 환경을 독립형 시스템에서 네트워크 시스템으로 변화시키고 있다. 본 논문에서는 임베디드 시스템 기반 산업용 계측 및 진단 시스템을 네트워크 환경하에서 보다 능동적으로 상호 작용하기 위한 미들웨어 수준의 임베디드 시스템 실행환경을 구성하고, 시스템 플랫폼으로는 자바를 사용한다. 자바 임베디드 기반 계측 및 진단 네트워크 미들웨어 시스템은 각 대상기기들의 고유작업들을 처리할 뿐만 아니라 이들 대상기기간의 계측 및 진단 정보를 서로 공유함으로써 보다 다양한 상황에 유연하게 대처하고, 효율적인 시스템 관리를 위한 능동 계측 진단 미들웨어 시스템 실행환경을 구성하고자 한다.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.317-318
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• 2008

효율적인 유통 물류매장 서비스를 지원하기 위해서는 RFID 미들웨어의 상태나 성능이 유동적인 환경에 대비하여 리소스의 안정적인 분배를 지원하는 환경이 필요 하다. 본 논문에서는 실제 산업 현장의 현실을 감안하여 소프트웨어 최소 요구사양으로 미들웨어 구성을 제시하는데, 필요한 정보를 제공하는데 그 목적을 두었다.