Implementation of a Battery-Free Wireless Sensor for Cyber-Physical Systems Dedicated to Structural Health Monitoring Applications
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TLDR
The experimental results prove that the periodicity of measurement and communication can be controlled wirelessly by using only the wireless power transmission downlink, and designed for implementing complete cyber–physical systems and based on the simultaneous wireless information and power transfer.Abstract:
This paper addresses the concept of a wirelessly powered and battery-free wireless sensor for the cyber–physical systems dedicated to the structural health monitoring applications in harsh environments. The proposed material architecture is based on a smart mesh wireless sensor network composed of sensing nodes and communicating nodes. The sensing nodes are used to sense the physical world. They are battery-free and wirelessly powered by a dedicated radiofrequency source via a far-field wireless power transmission system. The data collected by the sensing nodes are sent to the communicating nodes that, between others, interface the physical world with the digital world through the Internet. A prototype of the sensing node—using a LoRaWAN uplink wireless communication and temperature and relative humidity sensor—has been manufactured, and the experiments have been performed to characterize it. The experimental results prove that the periodicity of measurement and communication can be controlled wirelessly by using only the wireless power transmission downlink. In this paper, we highlight the performance of this complete implementation of a wirelessly powered and battery-free wireless sensing node—not yet integrated or miniaturized—designed for implementing complete cyber–physical systems and based on the simultaneous wireless information and power transfer. Finally, an investigation of comparable implementations of the battery-free sensing nodes for the cyber–physical systems is carried out.read more
Citations
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Wireless sensor network for structural health monitoring: A contemporary review of technologies, challenges, and future direction:
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LoRaWAN Battery-Free Wireless Sensors Network Designed for Structural Health Monitoring in the Construction Domain
Gael Loubet,Alexandru Takacs,Ethan L. W. Gardner,Andrea De Luca,Florin Udrea,Daniela Dragomirescu +5 more
TL;DR: Experimental results for a simplified network confirm that the periodicity of the measurements and data transmission of the sensing nodes can be controlled by the dedicated RF source, by tuning the radiated power density of the RF waves, and without any modification of the software or the hardware implemented in the sensing node.
References
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TL;DR: An overview of SWIPT systems with a particular focus on the hardware realization of rectenna circuits and practical techniques that achieveSWIPT in the domains of time, power, antennas, and space is provided.
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Structural Health Monitoring Using Wireless Sensor Networks: A Comprehensive Survey
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LoRa Backscatter: Enabling The Vision of Ubiquitous Connectivity
TL;DR: The first wide-area backscatter system is presented and it is shown that it costs less than a dime at scale and consumes only 9.25 &mgr;W of power, which is more than 1000x lower power than LoRa radio chipsets.
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A Review of Passive RFID Tag Antenna-Based Sensors and Systems for Structural Health Monitoring Applications
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Proceedings ArticleDOI
PLoRa: a passive long-range data network from ambient LoRa transmissions
Yao Peng,Longfei Shangguan,Yue Hu,Qian Yujie,Lin Xianshang,Xiaojiang Chen,Dingyi Fang,Kyle Jamieson +7 more
TL;DR: PLoRa takes ambient LoRa transmissions as the excitation signals, conveys data by modulating an excitation signal into a new standard LoRa "chirp" signal, and shifts this new signal to a different LoRa channel to be received at a gateway faraway.