Energy-efficient heterogeneous reconfigurable sensor node for distributed structural health monitoring

Abstract

Distributed structural health monitoring (SHM) using wireless sensor nodes (WSN) requires frugal spending of the limited energy budget. We propose a reconfigurable heterogeneous architecture, combining a low-power micro-controller (MCU) with a Field-Programmable Gate Array (FPGA), as a means for energy-efficient in-sensor processing. Details covered include a generic communication interface between both computing units and several clock-management schemes for energy efficiency. We evaluate the architecture on the use-case of a Random Decrement (RD) algorithm and also consider additional pre-filtering to reduce the volume of wirelessly transmitted data. Compared to conventional low-power sensor nodes, we can reduce the energy required for data processing by up to 81%.

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Cite this paper

@article{Engel2012EnergyefficientHR, title={Energy-efficient heterogeneous reconfigurable sensor node for distributed structural health monitoring}, author={Andreas Engel and Bj{\"{o}rn Liebig and Andreas Koch}, journal={Proceedings of the 2012 Conference on Design and Architectures for Signal and Image Processing}, year={2012}, pages={1-8} }