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  • 151.
    Ye, Liu
    et al.
    College of Engineering, Nanjing Agricultural University, Nanjing, China.
    Voigt, Thiemo
    RISE SICS, Kista, Sweden.
    Wirström, Niklas
    RISE SICS, Kista, Sweden.
    Höglund, Joel
    RISE SICS, Kista, Sweden.
    ECOVIBE:: On-Demand Sensing for Railway Bridge Structural Health Monitoring2019In: IEEE Internet of Things Journal, ISSN 2327-4662, Vol. 6, no 1, p. 1068-1078Article in journal (Refereed)
    Abstract [en]

    Energy efficient sensing is one of the main objectives in the design of networked embedded monitoring systems. However, existing approaches such as duty cycling and ambient energy harvesting face challenges in railway bridge health monitoring applications due to the unpredictability of train passages and insufficient ambient energy around bridges. This paper presents ECOVIBE (Eco-friendly Vibration), an on-demand sensing system that automatically turns on itself when a train passes on the bridge and adaptively powers itself off after finishing all tasks. After that, it goes into an inactive state with near-zero power dissipation. ECOVIBE achieves these by: Firstly, a novel, fully passive event detection circuit to continuously detect passing trains without consuming any energy. Secondly, combining train-induced vibration energy harvesting with a transistor-based load switch, a tiny amount of energy is sufficient to keep ECOVIBE active for a long time. Thirdly, a passive adaptive off control circuit is introduced to quickly switch off ECOVIBE. Also this circuit does not consume any energy during inactivity periods. We present the prototype implementation of the proposed system using commercially available components and evaluate its performance in real-world scenarios. Our results show that ECOVIBE is effective in railway bridge health monitoring applications.

  • 152. Zhang, Haibo
    et al.
    Österlind, Fredrik
    SICS.
    Soldati, Pablo
    Voigt, Thiemo
    SICS.
    Johansson, Mikael
    Rapid Convergecast on Commodity Hardware: Performance Limits and Optimal Policies2010Conference paper (Refereed)
  • 153. Zimmerling, Marco
    et al.
    Ferrari, Federico
    Mottola, Luca
    Voigt, Thiemo
    SICS.
    Thiele, Lothar
    pTunes: runtime parameter adaptation for low-power MAC protocols2012In: IPSN, 2012, p. 173-184Conference paper (Refereed)
  • 154. Zuniga, Marco
    et al.
    Irzynska, Izabela
    Hauer, Jan-Hinrich
    Voigt, Thiemo
    SICS.
    Boano, Carlo Alberto
    Römer, Kay
    Link quality ranking: Getting the best out of unreliable links2011In: DCOSS, 2011, p. 1-8Conference paper (Refereed)
  • 155.
    Österlind, Fredrik
    et al.
    SICS.
    Dunkels, Adam
    SICS.
    Eriksson, Joakim
    SICS.
    Finne, Niclas
    SICS.
    Voigt, Thiemo
    SICS.
    Cross-Level Sensor Network Simulation with COOJA2006In: Proceedings of the First IEEE International Workshop on Practical Issues in Building Sensor Network Applications (SenseApp), 2006Conference paper (Refereed)
  • 156.
    Österlind, Fredrik
    et al.
    SICS.
    Dunkels, Adam
    SICS.
    Voigt, Thiemo
    SICS.
    Tsiftes, Nicolas
    SICS.
    Eriksson, Joakim
    SICS.
    Finne, Niclas
    SICS.
    Sensornet checkpointing: “Enabling repeatability in test-beds and realism in simulators.”2009In: In Proceedings of the 6th European Conference on Wireless Sensor Networks, EWSN 2009, Cork, Ireland, February 2009, 2009Conference paper (Refereed)
  • 157.
    Österlind, Fredrik
    et al.
    SICS.
    Mottola, Luca
    SICS.
    Voigt, Thiemo
    SICS.
    Tsiftes, Nicolas
    SICS.
    Dunkels, Adam
    SICS.
    Strawman: Resolving Collisions Through CollisionsManuscript (preprint) (Other academic)
  • 158.
    Österlind, Fredrik
    et al.
    SICS.
    Wirström, Niklas
    SICS.
    Tsiftes, Nicolas
    SICS.
    Finne, Niclas
    SICS.
    Voigt, Thiemo
    SICS.
    Dunkels, Adam
    SICS.
    StrawMAN: Making Sudden Traffic Surges Graceful in Low-Power Wireless Networks2010Conference paper (Refereed)
  • 159. Östrom, Erik
    et al.
    Mottola, Luca
    SICS.
    Voigt, Thiemo
    SICS.
    Nilsson, Martin
    Smart Antennas Made Practical: The SPIDA Way2010Conference paper (Refereed)
  • 160. Öström, Erik
    et al.
    Mottola, Luca
    SICS.
    Voigt, Thiemo
    SICS.
    Evaluation of an Electronically Switched Directional Antenna for Real-world Low-power Wireless Networks2010Conference paper (Refereed)
1234 151 - 160 of 160
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