• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 심포지엄 논문집 정보 및 제어부문
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• pp.83-85
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• 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.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.926-931
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• 2004

In this paper, we proposed security management architecture that combines programmable network technology and policy based network management technology to manage efficiently heterogeneous security systems. By using proposed security management architecture, a security administrator can manage heterogeneous security systems using security policy, which is automatically translated into a programmable security policy and executed on programmable middleware of security system. In addition, programmable middleware that has the features of programmable network can reduce excessive management traffic. We showed that the programmable middleware could reduce the load of management traffic by comparing processing time between the proposed architecture and PBNM architecture.

• Transactions on Control, Automation and Systems Engineering
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• 제3권3호
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• pp.190-195
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• 2001

The advance of computer, network, and Internet technology enables the control systems to process the massive data in the distributed computing environments. To implement and maintain the software in distributed environment, the component-based methodology is widely used. This paper proposes the middleware architecture for the distributed computer control system. With the proposed middleware services, it is relatively easy to maintain compatibility between products and to implement a portable control application. To achieve the compatibility between heterogeneous systems, the proposed architecture provides the communication protocols based on the XML with lightweight event-based service.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권7호
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• pp.2874-2891
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• 2016

Due to its potential, the Internet of Things (IoT) begins to be used in the industrial field. Nevertheless, although the concept called the Industrial Internet of Things does not know a widely accepted definition, it is based on the existing technology, and introduces the IoT in the industrial environment through the compliance with specific additional requirements and by integrating various fieldbuses with distinctive features, from the real-time point of view. The aim of this paper is to propose a practical architecture for the Industrial Internet of Things. The proposed architecture is designed around the Data Distribution Service for Real Time System (DDS) middleware protocol, and it is organized on four levels. Between these levels, it is defined standard interface, and they can be developed independently. For this reason, the architecture is scalable because at the middleware level, the DDS can be replaced by other middleware systems. At the final, it is performed a comparison between several middleware systems used in the proposed architecture.

• 한국통신학회논문지
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• 제28권10C호
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• pp.1033-1044
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• 2003

본 논문에서는 이기종의 보안 장비를 보다 효율적으로 관리할 수 있는 보안 관리 구조와 관리 트래픽의 부하를 줄일 수 있는 프로그래머블 미들웨어를 제안하였다. 제안된 보안 관리 구조는 정책 기반 네트워크 관리 (Policy Based Network Management: PBNM) 구조에 프로그래머블 네트워크 기법을 접목한 것으로, 다양한 이기종의 보안 장비를 보안 정책을 통해 관리할 수 있으며, 보안 장비 간 연동을 제공한다. 또한, 미들웨어에서 보안 정책을 실행 가능한 형태로 변환해 줌으로써 관리상의 편이성을 제공하고 정책 서버의 부하를 줄일 수 있다. 본 논문에서는 제안된 구조와 PBNM 구조에서의 정책적용 및 변환시간과 메시지 전달시간을 비교함으로써 프로그래머블 미들웨어가 관리 트래픽의 부하를 줄일 수 있다는 것을 검증하였다.

• 산업경영시스템학회지
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• 제31권3호
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• pp.80-89
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• 2008

Because of different hardware specifications, there are no unified protocol commands to use with various kinds of RFID readers. The current commercial RFID middlewares do not satisfy the various requirements from users to support business process logic representation. The EPCglobal, which is leading organization for the RFID research, suggested a RFID middleware architecture which is called ALE(Application Level Events) standard. However, their architecture also does not provide the application level's interfaces. Therefore, a new RFID middleware architecture is required to provide basic RFID functions, conform to ALE's specification and, additionally, support application level's business logic representation. This paper proposes a ALE-based RFID middleware architecture which provides business process logic representation. At first, the basic RFID control functionalities are identified. Secondly, the business process logic requirements in RFID applications are identified and classified Into six categories. Third, the Middelware architecture is implemented with Java and XML technology so that it can easily extended to support the various RFID hardware's protocols. Finally, an example RFID prototype system is developed to show the proposed architecture's feasibility and validate it. The proposed middleware is expected to be used In various application areas since it is using XML technology for easy adaptation and it also con- forms to ALE interface which is standard specification.

• 대한음성학회지:말소리
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• 제60호
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• pp.125-144
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• 2006

W3C announced a standard software architecture for multimodal context-aware middleware that emphasizes modularity and separates structure, contents, and presentation. We implemented a distributed multimodal interface system followed the W3C architecture, based on SCXML. SCXML uses parallel states to invoke both XHTML and VoiceXML contents as well as to gather composite or sequential multimodal inputs through man-machine interactions. We also hire Delivery Context Interface(DCI) module and an external service bundle enabling middleware to support context-awareness services for real world environments. The provision of personalized user interfaces for mobile devices is expected to be used for different devices with a wide variety of capabilities and interaction modalities. We demonstrated the implemented middleware could maintain multimodal scenarios in a clear, concise and consistent manner by some experiments.

• 산업경영시스템학회지
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• 제38권1호
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• pp.170-181
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• 2015

Generally, because individual agricultural product possesses its own distinctive characteristics and shows different characteristics at each stage of the agricultural supply chain, it is necessary to develop a proper enterprise architecture for managing information system. In this paper, we propose an enterprise architecture based on RFID/USN technology that can be used as a reference enterprise architecture for u-IT application in the agriculture sectors, which is called the u-Farm enterprise architecture with taking heterogeneous characteristics of agricultural products into account for. In addition, we also developed the RFID/USN middleware platform as a core infrastructure technology. Fo evaluation of the performance of the proposed u-Farm architecture and the RFID/USN middleware platform, the field-trial evaluation at the apple Agricultural Processing Center (APC) has been executed and the results shows that the proposed architecture and platform perform well in terms of information integration over the whole SCM process from the farming stage to delivering statge to the customers. It is expected that the proposed u-Farm enterprise architecture can be utilized as a standard information architecture, and the RFID/USN middleware platform can be a infrastructure platform for future u-IT based information technology applications and services in the agricultural environment.

• 한국콘텐츠학회논문지
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• 제7권11호
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• pp.1-8
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• 2007

센서 네트워크는 무선통신기술의 발전에 힘입어 다양한 응용분야에서 센서들을 이용함으로써 무인화와 자동화를 가능하게 하고 있다. 센서 네트워크를 가능하게 하는 기술 중의 하나는 센서로부터 얻어지는 정보들을 효율적으로 수집하고 분석해서 자동적으로 제어하는 역할을 담당하는 USN(Ubiquitous Sensor Network) 미들웨어 기술을 꼽을 수 있다. 논문에서는 버섯재배 시스템의 구현을 사례로 하여, 버섯재배 응용을 위한 USN 미들웨어 설계를 수행하는 과정에서 요구되는 효율적인 소프트웨어 아키텍처 개발방법론을 다루고 있다. 특히, 아키텍처 설계방법 중 아키텍처 패턴을 효율적으로 이용하는 방법을 제안하고, 사례 시스템의 설계에 개선된 방법을 적용해 봄으로써 타당성을 검증하고자 하고 있다. 아울러, 기존의 소프트웨어 아키텍처 연구에서 간과되고 있는 소프트웨어 아키텍처를 위한 품질속성들을 검토하고, 정리하여 함께 제시하고 있다.

• 한국융합학회논문지
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• 제8권11호
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• pp.63-69
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• 2017

IoT 시스템에서의 미들웨어는 인간과 사물, 사물과 사물 사이를 연결하여 데이터를 주고받을 수 있도록 중간 매개체 역할을 하는 소프트웨어이다. IoT 미들웨어는 그 형태와 목적이 서로 상이한 이기종간의 하드웨어, 프로토콜 및 통신 등을 전 영역에 걸쳐서 다양한 형태로 존재한다. 그러므로 시스템 각각의 역할별 종류를 달리 설계하더라도 공통적으로 보안을 강화할 수 있는 방안이 필요하다. 본 논문에서는 SOA(Service Oriented Architecture) 접근방법을 이용한 IoT 미들웨어 구조를 분석하고 이를 바탕으로 시스템 보안요구사항을 설계하였다. 기존 시스템 개발방법과는 달리 검증을 위하여 공통평가기준(Common Criteria) 기반으로 평가대상물(TOE: Target Of Evaluation)을 정의하였다. 향후 제시된 미들웨어 시스템은 보안문제정의 및 보안목적과 상관관계를 나타냄으로서 보안이 강화된 IoT 시스템 구현 근거가 될 것이다.