USN 기반 텔레매틱스 서비스는 텔레매틱스 시장의 성숙, 유비쿼터스 사회에 대한 열망 및 u-City 사업의 가속화 등에 기인하여, 도로 교통 인프라에 USN 기술을 적용함으로써 대두하게 된 새로운 개념의 서비스이다. 본 고에서는 USN 기반 텔레매틱스 서비스 및 시장 동향, 해외사례, 관련 특허 및 국내기술개발 동향을 살펴보고자 한다. 현재 중점을 두는 구체적인 서비스는 도로 및 교차로 환경에서의 상황정보 제공 서비스로 도로 위에 설치된 T-센서노드를 이용하여 시간 및 방향에 따라 진입하는 차량의 실시간 위치, 속도, 시간 정보를 수집한 뒤 센서 네트워크를 통해 T-베이스스테이션으로 관련 정보를 전달하고 차량 충돌이라는 교통사고를 미연에 방지하기 위한 상황인지적 서비스를 제공하는 것이다. 이를 위한 핵심 기술로 T-센서노드 기술, 센서노드 네트워크 기술 및 T-베이스스테이션 기술이 있으며 중점적으로 개발하고 있다.
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