Citation

Hu S, Bowlds RL, Gu Y, Yu X. Conf. Proc. IEEE Eng. Med. Biol. Soc. 2009; 2009: 2312-2315.

Affiliation

University of Minnesota, Duluth, MN 55812, USA. huxxx193@d.umn.edu

Copyright

(Copyright © 2009, IEEE (Institute of Electrical and Electronics Engineers))

DOI

10.1109/IEMBS.2009.5335036

PMID

19965174

Abstract

This research proposes a PVDF film pulse wave sensor for use in driver's drowsiness detection. The sensor non-intrusively measures heart pulse wave from driver's palm and an adaptive filter is employed to cancel the measurement noise aroused by the changing of gripping force. Experimental results show clear pulse wave signals can be obtained. Two-hour driving simulation is performed for drowsiness detection tests. The low frequency to high frequency (LF/HF ratio) is calculated from power spectrum density (PSD) of subjects' heart rate time series. The LF/HF ratio shows decreasing trends as subjects go from awake to drowsy.

Language: en