Type de document
Études primaires
Année de publication
2025
Langue
Anglais
Titre de la revue
Sensors
Résumé
Capacitive ECG sensors in automobiles enable unobtrusive heart rate monitoring as an indicator of a driver’s alertness and health. This paper introduces a capacitive sensor with textile electrodes and provides insights into signal quality and RR duration accuracy. Electrodes of various shapes, sizes, and fabrics were integrated at various positions into the seat back of a driving simulator car seat. Seven subjects completed identical driving circuits with their cardiac signals being recorded simultaneously with textile electrodes and reference Ag-AgCl electrodes. Capacitive ECG signals with observable R peaks (after filtering) could be captured with almost all pairs of textile electrodes, independently of design or placement. Signal quality from textile electrodes was consistently lower compared with reference Ag-AgCl electrodes. Proximity to the heart or even contact with the body seems to be key but not enough to improve signal quality. However, accurate measurement of RR durations was mostly independent of signal quality since 90% of all RR durations measured on capacitive ECG signals had a percentage error below 5% compared to reference ECG signals. Accuracy was actually algorithm-dependent, where a classic Pan–Tompkins-based algorithm was interestingly outperformed by an in-house frequency-domain algorithm.
Mots-clés
Automobile, Électrode, Electrode, Conduite de véhicule, Driving, Mesure de la fréquence cardiaque, Heart rate monitoring, Rythme cardiaque, Pulse rate
Numéro de projet IRSST
2020-0006
Citation recommandée
Duverger, J. E., Dumoulin, G.-G. R., Bellemin, V., Forcier, P., Decaens, J., Gagnon, G. et Saidi, A. (2025). Cardiac monitoring with textile capacitive electrodes in driving applications: Characterization of signal quality and RR duraction accuracy. Sensors, 25(19), article 6097. https://doi.org/10.3390/s25196097