최근 상황인식 기술은 유비쿼터스 환경에서 중요한 이슈로 떠 오르고 있으며, 연구자들에 의해 많은 연구가 이루어 지고 있다. 상황인식 기술은 상황정보를 획득/가공하여 사용자에게 필요한 서비스와 정보를 제공하는 컴퓨터 시스템이다. 상황인식 시스템은 각종 센서로부터 발생하는 낮은 수준의 상황정보를 높은 수준의 상황정보로 변환하여 사용자에게 원하는 서비스를 제공하는 환경을 만들어 준다. 본 논문에서는 물리적인 스마트 공간에 존재하는 각종 센서로부터 얻어진 하위단계(Low level)의 Event driven 센서정보를 온톨로지 기반 상황정보로 모델링 하여 상위단계(High level) 상황정보로 변환하는 상황인식 모델링과 시스템을 제안한다. 또한 변환된 High level 상황정보는 가상공간에서 ECA(Event, Condition, Action) 룰에 따라 사용자에게 언제 어디선지 사용자가 필요로 하는 능동적이고 지능적인 서비스를 제공하고, 스마트 오피스 환경에서 발표 도우미 서비스를 구현하였다
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