Energy-efficient heterogeneous reconfigurable sensor node for distributed structural health monitoring.
Conference on Design and Architectures for Signal and Image Processing（2012）
摘要
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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关键词
condition monitoring,field programmable gate arrays,microcontrollers,structural engineering,wireless sensor networks,FPGA,RD algorithm,WSN,clock-management scheme,computing units,distributed SHM,distributed structural health monitoring,energy-efficient heterogeneous reconfigurable sensor node,energy-efficient in-sensor processing,field programmable gate array,generic communication interface,low-power microcontroller,random decrement algorithm,wireless sensor nodes,energy efficiency,random decrement technique,reconfigurable computing,structural health monitoring,wireless sensor network,
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