一种支持无线传感器节点高效地震事件检测的加速度计数字前端

F. Federici, R. Alesii, A. Colarieti, F. Graziosi, M. Faccio
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引用次数: 1

摘要

快速检测土木结构的地震加速度是实施早期预警策略的关键工具。这项工作说明了数字前端的发展,能够有效地支持地震数据分析,并专门设计用于集成MEMS加速度计。虽然有一些商用传感器集成处理模块的例子,但很少能满足地震监测应用的要求。提出的前端基于Walsh变换,专门设计用于支持电池供电的无线传感器节点的高效地震事件检测。描述了所提模块的硬件结构,并详细介绍了其功能。通过对实际结构数据的分析,对检测精度进行了评价。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An accelerometer digital front end for efficient seismic event detection support in a wireless sensor node
Rapid detection of earthquake-induced acceleration in civil structures is a key tool for the implementation of early warning strategies. This work illustrates the development of a digital front end able to effectively support seismic data analysis and specifically designed for integration in MEMS accelerometers. Although there are some examples of commercially available sensors integrating processing blocks, few are able to satisfy seismic monitoring applications requirements. Proposed front end is based on the Walsh transform and it is specifically designed to support efficient seismic event detection in a battery-powered wireless sensor node. Hardware architecture of proposed block is described and its capabilities are detailed. Detection accuracy is evaluated by means of real world structural data analysis.
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