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Sensors 2017, 17(10), 2207; https://doi.org/10.3390/s17102207

ePave: A Self-Powered Wireless Sensor for Smart and Autonomous Pavement

1
Road Traffic Intelligent Detection and Equipment Engineering Technology Research Centre, Chang’an University, Xi’an 710064, China
2
Department of Computer Science and Engineering, University at Buffalo, SUNY, Buffalo, NY 14260, USA
*
Author to whom correspondence should be addressed.
Received: 8 August 2017 / Revised: 18 September 2017 / Accepted: 19 September 2017 / Published: 26 September 2017
(This article belongs to the Special Issue Wireless Rechargeable Sensor Networks)
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Abstract

“Smart Pavement” is an emerging infrastructure for various on-road applications in transportation and road engineering. However, existing road monitoring solutions demand a certain periodic maintenance effort due to battery life limits in the sensor systems. To this end, we present an end-to-end self-powered wireless sensor—ePave—to facilitate smart and autonomous pavements. The ePave system includes a self-power module, an ultra-low-power sensor system, a wireless transmission module and a built-in power management module. First, we performed an empirical study to characterize the piezoelectric module in order to optimize energy-harvesting efficiency. Second, we developed an integrated sensor system with the optimized energy harvester. An adaptive power knob is designated to adjust the power consumption according to energy budgeting. Finally, we intensively evaluated the ePave system in real-world applications to examine the system’s performance and explore the trade-off. View Full-Text
Keywords: piezoelectric effect; pavement energy harvesting; adaptive working; wireless sensor piezoelectric effect; pavement energy harvesting; adaptive working; wireless sensor
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Xiao, J.; Zou, X.; Xu, W. ePave: A Self-Powered Wireless Sensor for Smart and Autonomous Pavement. Sensors 2017, 17, 2207.

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