Journal of Advanced Marine Engineering and Technology

  • 제37권8호
  • /
  • Pages.918-931
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  • 2013
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
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무선 센서 네트워크와 GPS정보를 이용한 스마트 보안 CCTV 시스템 구현

Implementation of smart security CCTV system based on wireless sensor networks and GPS data

  • Yoon, Kyung-Hyo (Center for Embedded Software Technology(CEST), Kyungpook National University) ;
  • Park, Jin-Hong (Center for Embedded Software Technology(CEST), Kyungpook National University) ;
  • Kim, Jungjoon (College of IT Engineering, Kyungpook National University) ;
  • Seo, Dae-Hwa (College of IT Engineering, Kyungpook National University)
  • 투고 : 2013.10.08
  • 심사 : 2013.11.11
  • 발행 : 2013.11.30
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초록

기존의 Pan-Tilt Zooming 카메라를 이용한 객체 추적은 카메라를 통해 획득한 영상을 분석하여 물체의 이동을 검출하였다. 그러나 이 방식은 영상처리를 위한 알고리즘과 이를 위한 하드웨어 비용이 소요되었다. 그리고 주변 환경의 변화나 영상 잡음 등으로 유효하지 않은 영상이 획득되는 경우나 사각지대가 존재하여 영상의 획득 자체가 불가능한 경우에는 대응이 어렵다. 본 논문에서는 영상 정보처리 기반의 객체 추적 기술이 가지는 한계를 극복하기 위해 무선 센서 네트워크 기반의 IEEE 802.15.4 표준을 적용한 GPS수신기가 장착된 센서노드를 시설물에 장착하여 센서노드의 가속도 센서가 장착된 시설물의 움직임을 인식하고 해당 센서노드의 GPS 정보를 이용하여 물체를 추적할 수 있는 시스템을 제안한다. 이 시스템은 영상처리에 요구되는 연산량을 감소시킴과 동시에 넓은 지역의 이동 물체를 추적할 수 있도록 효율적인 PTZ 카메라 제어를 가능하게 한다. 또한 센서노드의 유동적 장착이 가능할 수 있도록 무선의 메쉬 네트워크를 구현하여 설치의 효율성을 올렸다.

The conventional object tracking techniques using PTZ camera detects object movements by analyzing acquired image. However, this technique requires expensive hardware devices to perform a complex image processing. And it is occasionally hard to detect object movements, if an acquired image is low quality or image acquisition is impossible. In this paper, we proposes a smart security CCTV system applying to wireless sensor network technique based on IEEE 802.15.4 standard to overcome the problems of conventional object tracking technique, which enables to track suspicious objects by detecting object movements and GPS data in sensor node. This system enables an efficient control of PTZ camera to observe a wide area, decreasing image processing complexity. Also, wireless sensor network is implemented using mesh networks to increase the efficiency of installing sensor node.

키워드

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