Piezoelectric Energy Harvesting for Wearable and Implantable Devices

Zitouni, M. Sami; Wahbah, Maisam

doi:10.1109/icspis57063.2022.10002623

Cited by 1 publication

(1 citation statement)

References 34 publications

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“…Over the last few years, piezoelectric elements have emerged as potential and reliable options for harnessing ambient mechanical vibrations to generate usable electrical energy. They have been used to operate sensor networks and wearable devices for personal health monitoring by converting the mechanical vibrations caused by human motion into electrical power [8][9][10][11]. As a typical example, by attaching a piezoelectric element to the sole of a subject's shoe, a voltage can be generated by walking and supplied to a wearable device without putting a burden on the subject [12,13].…”

Section: Introductionmentioning

confidence: 99%

Batteryless BLE Module with a Piezoelectric Element Mounted on a Shoe Sole

Dan,

Yano,

Wang

2024

Sensors

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A position identification system for wandering elderly people uses BLE to transmit ID information. The objective of this study is to make the BLE module batteryless using a piezoelectric element. The piezoelectric element is mounted on the sole of a shoe, and when pressure is applied to the piezoelectric element by walking, a voltage is generated between both electrodes of the piezoelectric element. This voltage is used to store the necessary power as a battery to operate the BLE module. In this paper, we provide a step-by-step design approach using piezoelectric elements attached to a shoe to power an actual BLE module. We derive an equivalent circuit for the piezoelectric element under walking conditions and, through circuit simulation and actual measurements, clarify the amount of time required to charge the voltage to drive the BLE, demonstrating the possibility of a batteryless BLE module for use in locating a wanderer while they are walking.

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