Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
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A Design of Transducer Interface Protocol for Context-aware Middleware

상황인식 미들웨어를 위한 트랜스듀서 인터페이스 프로토콜 설계

  • 장동욱 (호서대학교 컴퓨터공학과) ;
  • 손석원 (호서대학교 벤처전문대학원) ;
  • 한광록 (호서대학교 컴퓨터공학부) ;
  • 선복근 (호서대학교 공학교육혁신센터)
  • Received : 2011.05.11
  • Accepted : 2011.07.11
  • Published : 2011.09.30
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Abstract

Context awareness technologies are based on efficient sharing of environment information of ubiquitous sensors in everyday life, and users require this awareness technologies to get quality of services. However, the application has been restricted due to its varieties of sensors and many different methods of communications. Therefore, IEEE 1451 standard has been published to interface between sensors and network layer. But it does not connect to a middleware because IEEE 1451 is for transducer standards. This paper presents a transducer and application interface protocol which connect to the context-aware middleware by defining a protocol to obtain context information using XML. We have implemented a bridge health monitoring system and railroad monitoring system in which different sensors and users' application are used to prove the efficacy of proposed interface protocols.

사용자가 필요로 하는 서비스를 제공하기 위해서는, 일상생활 곳곳에 편재된 센서가 수집한 각종 환경 정보를 효율적으로 상호 공유하여 주변 상황을 인식하는 기술이 필요하다. 그러나 이를 위한 센서의 종류는 다양하고 각각의 센서는 고유의 특성과 서로 다른 방식으로 통신을 하기 때문에 센서의 활용에 제한이 있다. 이에 센서와 네트워크 계층과의 통신 프로토콜 표준화를 위한 IEEE 1451이 발표되었다. 그러나 IEEE 1451은 트랜스듀서(Transducer)의 표준화를 위한 프로토콜이므로 미들웨어에 접속되지 않는다. 본 논문에서는 XML을 이용하여 주변상황 정보를 얻기 위한 프로토콜을 정의함으로써 상황인식 미들웨어에 연결되는 트랜스듀서 인터페이스 및 응용 인터페이스 프로토콜을 제안한다. 그리고 서로 다른 센서와 응용 프로그램을 이용한 교량 건전성 감시 시스템과 철로 감시 시스템을 구현하고 제안한 인터페이스 프로토콜의 효용성을 확인하였다.

Keywords

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