Abstract
Powering a remote wireless sensor is a challenging task if batteries are not suitable or enough capacious and their substitution is not feasible. In this project a remote wireless sensor is placed inside training shoes with the aim to collect and transmit data to evaluate and track the performance of an athlete. The primary energy source is the impact between the shoe and the ground while walking or running. The harvester has been designed by means of a multi-physics optimization based on an integrated electromagnetic-mechanical-electric-electronic simulator. Thus an automated optimization of the device with respect to volume constraints, magnets dimensions, induction coils placement and sizes and electric/electronic coupling have been performed to increase the average power extracted from the device at different speeds. These parameters are used as starting point for the product development phase in order to obtain a consistent number of prototypes and validate the simulations on these physical demonstrators. Finally, experimental outcomes evince the expected performance and a more than satisfactory agreement with the models, confirming the feasibility of the application.
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Acknowledgment
This work was performed under a research project with STMicroelectronics. The authors would like to thank Dr. Alessandro Gasparini, Dr. Stefano Ramorini and Dr. Alberto Cattani from STMicroelectronics for their enthusiasm and driving force in the project.
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Bonisoli, E., Di Monaco, F., Manca, N., Repetto, M., Tornincasa, S. (2015). From Preliminary Design to Prototyping and Validation of Energy Harvester for Shoes. In: Wicks, A. (eds) Shock & Vibration, Aircraft/Aerospace, and Energy Harvesting, Volume 9. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-15233-2_1
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DOI: https://doi.org/10.1007/978-3-319-15233-2_1
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-15232-5
Online ISBN: 978-3-319-15233-2
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