Publication Date:
2019-03-26
Description:
We propose a low-cost and low-power consumption
device for seismic monitoring consisting of three single-axis
accelerometers connected to a data logger with acquisition,
synchronization, and transmission functionalities. The device was
designed to be densely and prolifically deployed in high seismic
risk areas, thus strengthening the Italian seismic network and
providing a more accurate estimation of shaking maps. Moreover,
the availability of such low-cost and high-performance units can
allow the widespread diffusion of smart systems for seismic and
structural monitoring, finalized to collapses prevention in critical
structures, such as schools and hospitals, as well as constitute
the founding nucleus of early warning systems based on Internet
of Things architectures. The realized station was submitted to
a testing phase, placing it contiguously to a high-performance
seismic station located in central Italy and responsible for
national seismic monitoring. The test station, installed from
September 2016 to March 2017, was able to record the significant
and numerous earthquakes that devastated central Italy during
this period. The simultaneous acquisition of these seismic events
by the sensors of the national seismic network, including that
co-sited with the device under test, has furnished sufficient
data for the device validation and performance quantification.
A comparative analysis was performed through waveforms correlations study, strong motion parameters estimation, and spectral
analysis. The proposed device demonstrated performances very
close to those of more sophisticated and expensive systems.
Therefore, it can effectively replace them or be added in engineering and civil protection applications and, finally, be used in
earthquake early warning systems.
Description:
Published
Description:
6644-6659
Description:
5T. Sismologia, geofisica e geologia per l'ingegneria sismica
Description:
JCR Journal
Keywords:
Early warning systems
;
earthquake
;
Internet of Things
;
MEMS
;
seismic sensors
;
structural monitoring
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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