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Home / Sensor Letters, Volume 8, Number 4

Non-Intrusive Pulse Wave Sensor for Vehicle Drivers

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Authors: Hu, Shan; Gu, Ye; Bowlds, Ryan; Yu, Xun

Source: Sensor Letters, Volume 8, Number 4, August 2010, pp. 659-666(8)

Publisher: American Scientific Publishers

DOI: https://doi.org/10.1166/sl.2010.1326

In this research, polyvinylidene fluoride (PVDF) based pulse wave sensor system is developed to non-intrusively measure heart pulse wave signals from driver's palms. A sensor system is specially designed with two PVDF films separated with a damped film. The top film measures the mix of heart pulse wave signal and noise from changing gripping force, the bottom film measures the gripping force noise. With the use of adaptive filter noise cancellation, together with an accelerometer measuring vehicle vibration, the measurement noise from gripping force and vehicle vibration can be successfully eliminated. Experimental results show that the sensor system can provide clear pulse wave signals for heart rate variability analysis, which can be used to detect driver's vigilant state to avoid traffic accidents. The sensor is also non-intrusive and can be easily installed on vehicle steering wheel.

Keywords: ADAPTIVE NOISE CANCELLATION; DRIVER STATE; HEART RATE; NON-INTRUSIVE PULSE WAVE SENSOR

Document Type: Research Article

Publication date: 01 August 2010

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  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
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