Research Article
A Wearable Hybrid IEEE 802.15.4-2011 Ultra-Wideband/Inertial Sensor Platform for Ambulatory Tracking
@INPROCEEDINGS{10.4108/icst.bodynets.2014.258233, author={Michael Walsh and Salvatore Tedesco and Tingcong Ye and Brendan O'Flynn}, title={A Wearable Hybrid IEEE 802.15.4-2011 Ultra-Wideband/Inertial Sensor Platform for Ambulatory Tracking}, proceedings={Workshop UWBAN-2014}, publisher={ICST}, proceedings_a={UWBAN}, year={2014}, month={11}, keywords={ieee 802154-2011 uwb inertial sensors mems fully coupled architecture hybrid system wearable}, doi={10.4108/icst.bodynets.2014.258233} }- Michael Walsh
Salvatore Tedesco
Tingcong Ye
Brendan O'Flynn
Year: 2014
A Wearable Hybrid IEEE 802.15.4-2011 Ultra-Wideband/Inertial Sensor Platform for Ambulatory Tracking
UWBAN
ICST
DOI: 10.4108/icst.bodynets.2014.258233
Abstract
Ultra-Wideband (UWB) transceivers and low-cost micro electro mechanical systems (MEMS) based inertial sensors are proving a promising hybrid combination for location specific wearable applications. While several hybrid systems have been proposed to date, current approaches consider inertial sensors and UWB as ad-hoc components working in isolation. As a result issues surrounding extensive infrastructure requirements, synchronization, and limitations associated with the mutual sharing of inertial data have arisen. In an attempt to address such limitations, this paper presents a fully-coupled architecture whereby standardised IEEE 802.15.4-2011 UWB is employed for both ranging and as a mechanism for exchanging inertial data between the nodes of a network. A proof-of-concept system is implemented and tested for a single ambulatory use case scenario. Basic fusion algorithms are employed and the preliminary results show the benefits of a fully coupled approach when compared with traditional standalone inertial navigation.
