Sistema para rastreamento de ativos móveis baseado em comunicação Lpwan: avaliação do protocolo Sigfox / Mobile asset tracking system based on Lpwan communication: evaluation of the Sigfox protocol

2021 ◽  
Vol 7 (7) ◽  
pp. 69645-69654
Author(s):  
Paulo Renato Câmera Da Silva ◽  
Herman Augusto Lepikson ◽  
Marcus Vinícius Ivo Da Silva ◽  
Rafael Barbosa Mendes ◽  
João Ricardo de Oliveira Mota
Author(s):  
Jay Mehta ◽  
Darsh Mehta ◽  
Jainam Jain ◽  
Surekha Dholay

Sensors ◽  
2012 ◽  
Vol 12 (12) ◽  
pp. 17446-17462 ◽  
Author(s):  
Tae Kim ◽  
Hyeong Jo ◽  
Jae Lee ◽  
Soon Kang

Author(s):  
I W K Bima W ◽  
V Suryani ◽  
A A Wardana

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 700 ◽  
Author(s):  
Philipp Dorsch ◽  
Toni Bartsch ◽  
Florian Hubert ◽  
Heinrich Milosiu ◽  
Stefan J. Rupitsch

We present a two-stage energy extraction circuit for a piezoelectric energy harvester, powering an asset-tracking system. Exploiting non-sinusoidal accelerations generated by many logistic transport devices, e.g., pushcarts, forklifts, assembly belts or cars, we are able to harvest sufficient electrical energy to transmit radio signals, which will allow to track the object when it is moving. By using the proposed energy extraction circuit, the energy extraction efficiency could be improved by at least 30% compared to a single-stage solution for sinusoidal excitations. In the practical use-case, the two-stage energy extraction network performs more than four times better compared to the single staged on.


IJARCCE ◽  
2017 ◽  
Vol 6 (3) ◽  
pp. 663-666
Author(s):  
Vaibhav Prasanna Bhandarkar ◽  
Harshal Girish Narkhede ◽  
Aditi Vijay Nerurkar

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