Structural Health Monitoring system with Narrowband IoT and MEMS sensors

04/27/2021
by   Flavio Di Nuzzo, et al.
1

Monitoring of civil infrastructures is critically needed to track aging, damages and ultimately to prevent severe failures which can endanger many lives. The ability to monitor in a continuous and fine-grained fashion the integrity of a wide variety of buildings, referred to as structural health monitoring, with low-cost, long-term and continuous measurements is essential from both an economic and a life-safety standpoint. To address these needs, we propose a low-cost wireless sensor node specifically designed to support modal analysis over extended periods of time with long-range connectivity at low power consumption. Our design uses very cost-effective MEMS accelerometers and exploits the Narrowband IoT protocol (NB-IoT) to establish long-distance connection with 4G infrastructure networks. Long-range wireless connectivity, cabling-free installation and multi-year lifetime are a unique combination of features, not available, to the best of our knowledge, in any commercial or research device. We discuss in detail the hardware architecture and power management of the node. Experimental tests demonstrate a lifetime of more than ten years with a 17000 mAh battery or completely energy-neutral operation with a small solar panel (60 mm x 120 mm). Further, we validate measurement accuracy and confirm the feasibility of modal analysis with the MEMS sensors: compared with a high-precision instrument based on a piezoelectric transducer, our sensor node achieves a maximum difference of 0.08 cost and power consumption.

READ FULL TEXT

page 1

page 8

page 10

research
06/24/2021

A Modelling and Experimental Framework for Battery Lifetime Estimation in NB-IoT and LTE-M

To enable large-scale Internet of Things (IoT) deployment, Low-power wid...
research
02/18/2019

A LoRaWAN Wireless Sensor Network for Data Center Temperature Monitoring

High-performance computing installations, which are at the basis of web ...
research
09/03/2021

A New Remote Monitor and Control System Based on Sigfox IoT Network

We describe a new, low-cost system designed to provide multi-sensor remo...
research
09/20/2022

Dataset: Impact Events for Structural Health Monitoring of a Plastic Thin Plate

Nowadays, more and more datasets are published towards research and deve...
research
12/17/2019

An RSSI-based Wireless Sensor Node Localisation using Trilateration and Multilateration Methods for Outdoor Environment

Localisation can be defined as estimating or finding a position of the n...
research
07/01/2022

Introducing flexible perovskites to the IoT world using photovoltaic-powered wireless tags

Billions of everyday objects could become part of the Internet of Things...

Please sign up or login with your details

Forgot password? Click here to reset