• Proceedings of the Korea Information Processing Society Conference
• /
• 2004.11a
• /
• pp.565-568
• /
• 2004

최근에는 B2B 시스템 통합 및 전략적 제휴가 상거래 형태를 변화시키고 있고, 이에 따라 관련 기업들의 효율성이 증가됨으로써 기업간 시스템들의 연동이 중요한 문제로 부각되고 있다 이에 본 논문에서는 워크플로우 시스템과 어플리케이션간의 연결을 통한 프로세스 자동화는 Wf-XML HTTP 바인딩을 사용함으로써 가능하며, 워크플로우 시스템과 어플리케이션의 연동을 위해 Wf-XML 문서를 HTTP 프로토콜을 사용하여 전송하는 방법을 논하며, 실제 구현을 통해 연동이 가능함을 보인다.

• Journal of Satellite, Information and Communications
• /
• v.8 no.2
• /
• pp.50-55
• /
• 2013

The smart grid is a next-generation power grid to create a new value-added information technology. Power providers and consumers exchange information in real-time bi-directional, and optimize energy efficiency with using the smart grid. This paper describes the concept of demand response of the communication system used in the protocol communication model of the smart grid.

• Proceedings of the KIEE Conference
• /
• 2004.05a
• /
• pp.83-85
• /
• 2004

Personal Robot System being developed is designed to module-based system architecture for supporting internal devices have variable system platforms, environments, networks. For supporting development environment, integrating remote services, managing the interoperation among internal modules on this system design, a well-designed object oriented middleware is needed significantly. There are already some middlwares like DCOM, CORBA, UPnP, JINI, OSGi, etc. But they have some limitations to applying to Personal Robot in variable side view. We are researching for a suitable design scheme to require low system resources, to guarantee realtime services as possible, and to implement easily. In this paper, we suggest a middleware architecture have goals that are simple, light, and object oriented, so that can be used at diversity devices in Personal Robot System.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2010.11a
• /
• pp.1004-1007
• /
• 2010

본 논문은 대용량을 요구하는 멀티미디어와 같은 스트리밍 서비스등 이에 관한 품질을 사용자의 요구에 따라 빠르게 요구 대역폭을 할당하고 보장하기 위한 광대역폭 기반의 응용지원을 위한 DCN(Dynamic Circuit Network)을 구축 및 검증하는 내용을 기술 하였다. 이를 위해 GMPLS, RSVP, OSPF등의 기술을 기반으로 2계층의 LSP를 동적으로 할당할 수 있게 하였으며, WBUI(Web-based User Interface)를 통해 사용자의 요구를 받아서 서비스를 제공할 수 있게 하였고, Iperf를 통해 요구 대역폭 할당과 보장을 검증한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2011.11a
• /
• pp.48-51
• /
• 2011

Universal Plug and Play (UPnP) is one of the most promising home network middleware technologies because of its straightforward implementation and zero configuration characteristics. However, it has a limitation of the operations only IP based network and proceeding in a single IP subnet. In this paper, we proposed network bridge architecture for UPnP network to interoperate heterogeneous network, UPnP and ZigBee. The proposed network bridge architecture is capable of configuration ZigBee device as a virtual UPnP device. This technique is promising for seamless inter-networking with ZigBee and UPnP network. Also, the architecture of the proposed network bridge architecture can be applied for a future smart home.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2008.11a
• /
• pp.962-965
• /
• 2008

유비쿼터스 환경에 산재하는 서비스 발견 미들웨어는 프로토콜, 표준, 서비스 검색 방법 및 프로그래밍 언어 등의 이질적인 특성을 가진다. 본 연구에서는 이질적인 서비스 발견 미들웨어의 상호운용을 지원하기 위해 유니버설 네트워크를 위한 웹서비스 프레임워크를 제안했다. 따라서 본 논문에서는 대표적인 미들웨어인 DPWS 와 웹서비스의 상호운용을 지원하기 위해 양방향 DPWS 어댑터에 대한 설계 및 구현을 서술한다. 또한 양방향 DPWS 어댑터의 구조, 구성 요소와 동작 과정을 설계하고, 간단한 시나리오를 구현함으로써 양방향 DPWS 어댑터가 제공하는 서비스 지향 아키텍처, 상호운용성 제공, 일반적인 웹서비스 호출, 자가 구성, 동적 서비스 검색 등의 이점을 논한다.

• Journal of KIISE:Computing Practices and Letters
• /
• v.13 no.1
• /
• pp.59-73
• /
• 2007

Although there exist many middlewares such as Havi, Jini, LonWorks, UPnP, and SLP, new middlewares specialized for diverse information appliances are expected to appear continuously as home networks evolve. In this paper, we examine an integrated architecture for supporting interoperability among heterogeneous middlewares under home network, we also propose and implement a scenario-based user-oriented integrated architecture for efficient home automation which is different from existing methods. HOMI(Homenetwork Middleware for Interoperability) architecture proposed in this paper provides interfaces that assist users with designing and modifying desirable scenarios using a script interpreter language HOMIL(HOMI Language). Different from an existing integrated middleware architecture, HOMI improves efficiency and convenience of interoperation between heterogeneous appliances for home automation allowing users to design and organize scenarios through these interfaces. HOMI classifies interoperation services into time contort, synchronization context, and asynchronization context and helps to execute next services considering contexts when a specific event occurs. Applying modified scenarios immediately to home network environment, HOMI provides users with seamless services without installing new applications, updating the server, or rebooting in order to adopt new scenarios. Lastly, distribution agents into several devices, we solved the overhead problem occurred in a centralized architecture for integrated middleware.

• Journal of IKEEE
• /
• v.18 no.3
• /
• pp.435-441
• /
• 2014

The V2X cooperative communication system is fusion technology which makes vehicle manuver safer. To evaluate and anticipate effect of these kind of technology, it requires real-car based road construction, implementation of communication devices, hiring inspection specialized personnel. For this reason, many laboratories and universities experience difficulties to test their technology results. Also, the need of implementing reliable testbed for testing vehicle safety applications and V2X communication technology is increasing as V2X device development is being accelerated. In this paper, we implemented a system which synchronizes traffic and network simulators via developing External interface to set simulation based testing environment in order to solve the difficulties.

• 제어로봇시스템학회:학술대회논문집
• /
• 2004.08a
• /
• pp.820-824
• /
• 2004

Personal Robot System in developing, have a module architecture, each module are connected through heterogeneors network systems like Ethernet, WLAN (802.11), IEEE1394 (Firewire), Bluetooth, USB, CAN, or RS-232C. In developing personal robot system we think that the key of robot performance is interoperability among modules. Each network protocol are well connected in the view of network system for the interoperability. So we make a bridging architecture that can routing, converting, transporting data packets with matcing each network's properties. Furthermore we suggest a advanced design scheme for realtime / non-realtime and control signal (short, requiring hard-realtime) / multimedia data (large, requiring soft-realtime). By some application systems, we could test performance, interoperability and stability. In this paper, we show our design concept, middleware architecture, and some applications systems using this middleware.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2005.05a
• /
• pp.1033-1039
• /
• 2005

Parallel and distributed simulation is concerned with the efficient execution of large-scale discrete event simulation models on multiprocessors and distributed platforms. After the development of WWW, many efforts in the parallel and distributed simulation have been made for modeling, particularly building simulation languages and creating model libraries that can be assembled and executed over WWW. However, web-based parallel and distributed simulation is restricted by heterogeneous computing environments. Recently, the advent of XML and web services technology has made these efforts enter upon a new phase. Especially, the web services as a distributed information technology have demonstrated powerful capabilities for scalable interoperation of heterogeneous systems. This paper aims to develop and evaluate the parallel and distributed simulation using the web services technology. In particular, a prototype multi-pass simulation framework is implemented using Java-based web services technology. It focuses on the efficiency of multi-pass simulation used for optimization through the distribution of simulation replication to several simulation service providers. The development of parallel and distributed simulation using web services will help solve efficiently large-scale problems and also guarantee interoperability among heterogeneous networked systems.