Journal of the Institute of Electronics Engineers of Korea CI (전자공학회논문지CI)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Sensor Module Architecture and Data Processing Framework for Energy Efficient Seamless Signal Processing in WSN

무선 센서네트워크에서의 저전력 연속 신호처리를 위한 센서모듈 아키텍처 및 데이터처리 프레임워크

  • Hong, Sang-Gi (RFID/USN Research Division, IT Convergence Technology Research Division, Electronics & Telecommunications Research Institute) ;
  • Kim, Nae-Soo (RFID/USN Research Division, IT Convergence Technology Research Division, Electronics & Telecommunications Research Institute) ;
  • Kim, Whan-Woo (Department of Electronics Engineering, Chungnam National University)
  • Received : 2011.09.21
  • Published : 2011.11.25
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Abstract

Due to the development and proliferation of ubiquitous technologies and services, various sensor network applications are being appeared on the stage. The needs for algorithms requiring sensor data fusion and complex signal processing with a high-performance processor such as a digital signal processor are also increased. However, it is difficult to use such processor for the low-power sensor network operating with a battery because of power consumption. This paper proposes a hybrid-type sensor module architecture supporting wakeup/sleep software framework for the wireless sensor node and shows the implemented sensor node platform and performances focused on the energy consumption and wakeup time.

무선 센서네트워크 기술의 발달과 센서네트워크 응용서비스의 성장에 따라, 다양한 이종 복합 센서로부터 획득 되는 센서 데이터의 융합 및 신호처리 알고리즘에 대한 연구 필요성이 증가하고 있다. 특히 복잡한 신호처리 알고리즘 수행의 필요성이 증가함에 따라 신호처리 전용 프로세서의 적용 및 데이터처리에 대한 연구가 증가하고 있다. 그러나 전용프로세서를 사용하는 경우 배터리로 동작하는 센서네트워크의 특성상 운용시간이 제약된다. 본 연구는 신호처리 전용 프로세서를 사용하는 센서네트워크 응용에서 전력 소모로 인한 운용시간 제약의 문제를 극복하기 위해, 운용 중 전원 제어가 가능한 하이브리드 센서모듈 아키텍처 및 이벤트 발생에 따른 웨이크업/슬립 기반 데이터처리 프레임워크를 제시하고, 실제 제안 된 센서노드 플랫폼을 구현하고, 성능을 제시 한다.

Keywords

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