@inproceedings{69c3bc2d51e74ef19504052a952e7a3e,
title = "Non-invasive indoor activity monitoring using photonic based accelerometers",
abstract = "In this work, a solution to monitor users' activity within an indoor scenario is proposed. It is based on non-wearable and non-invasive sensing, and it is specially fitted for the elders' home monitoring. The localization of a person is estimated through an optical sensing network that detects the floor vibration produced by the footstep when walking. Optical fiber Bragg sensors are integrated within high sensitive accelerometers to detect such vibration. Three similar accelerometers were developed from which sensitivities of 269 pm/G, 225 pm/G, and 209 pm/G were found. Allied to vibration detection, an algorithm is employed to retrieve one's position from the data. In preliminary localization tests, the system has demonstrated an accuracy under 5 cm over a 3.2 m2 detection area, proving itself to be a promising solution for the targeted application.",
keywords = "Accelerometer, elder's monitoring, fiber Bragg gratings, indoor positioning",
author = "Nepomuceno, {Ana Catarina} and N{\'e}lia Alberto and Paulo Andr{\'e} and Ayman Radwan and Paulo Antunes and Domingues, {M. F{\'a}tima}",
note = "Funding Information: This work is funded by FCT/MCTES through national funds and when applicable co-funded EU funds under the project UIDB/50008/2020-UIDP/50008/2020. Catarina Nepomuceno acknowledges the FCT for the grant with the reference UI/BD/151329/2021 and the project NICE-HOME. M. F. Domingues and N. Alberto acknowledge the scientific actions REACT and PREDICT, funded by FCT/MEC through national funds and when applicable co-funded by FEDER – PT2020 partnership agreement under the project UID/EEA/50008/2019. This work is supported by the European Regional Development Fund (FEDER), through the Regional Operational Programme of Lisbon (POR LISBOA 2020) and the Regional Operational Programme of Centre (CENTRO 2020) of the Portugal 2020 framework [Project Safe-Home with Nr. 072082 (CENTRO-01-0247-FEDER-072082)]. Publisher Copyright: {\textcopyright} 2022 SPIE.; Optical Sensing and Detection VII 2022 ; Conference date: 09-05-2022 Through 15-05-2022",
year = "2022",
doi = "10.1117/12.2621011",
language = "British English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Francis Berghmans and Ioanna Zergioti",
booktitle = "Optical Sensing and Detection VII",
address = "United States",
}