Research Article
Smart Shoe Based on Battery-Free Bluetooth Low Energy Sensor
@INPROCEEDINGS{10.1007/978-3-030-77424-0_13, author={Thanh Hung Nguyen and Minh Ngoc Tran and Quang Huy Le and Thi Anh Vu and Quoc Cuong Nguyen and Dai Duong Nguyen and Minh Thuy Le}, title={Smart Shoe Based on Battery-Free Bluetooth Low Energy Sensor}, proceedings={Industrial Networks and Intelligent Systems. 7th EAI International Conference, INISCOM 2021, Hanoi, Vietnam, April 22-23, 2021, Proceedings}, proceedings_a={INISCOM}, year={2021}, month={5}, keywords={Smart shoe Battery-less wireless sensor BLE sensor Triboelectric Energy harvesting Printed inverted-F antenna}, doi={10.1007/978-3-030-77424-0_13} }- Thanh Hung Nguyen
Minh Ngoc Tran
Quang Huy Le
Thi Anh Vu
Quoc Cuong Nguyen
Dai Duong Nguyen
Minh Thuy Le
Year: 2021
Smart Shoe Based on Battery-Free Bluetooth Low Energy Sensor
INISCOM
Springer
DOI: 10.1007/978-3-030-77424-0_13
Abstract
In this work, we propose a smart shoe integrated with a very-low power wireless sensor node operating in Bluetooth Low Energy (BLE) 5.0 standard. The sensor node consists of a miniaturized printed inverted-F antenna, an accelerometer and a gyroscope being placed at the bottom of the shoe to measure footstep-length, running speed and foot landing angle. The maximum power consumption of the sensor is 11 mW and it is sustained by a triboeletric nanogenerator (TENG) which generates power from the friction causing by user's motion itself and an energy storage circuit. The triboelectric energy harvester, having the size of 6 cm × 6 cm, is made of multiple pairs of triboelectric materials can harvest up to 32 mW/m2, enough to supply the sensor node.
