Unobtrusive vital sign monitoring in automotive environments--a review
Author(s)
Leonhardt, Steffen; Leicht, Lennart; Teichmann, Daniel
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This review provides an overview of unobtrusive monitoring techniques that could be used to monitor some of the human vital signs (i.e., heart activity, breathing activity, temperature and potentially oxygen saturation) in a car seat. It will be shown that many techniques actually measure mechanical displacement, either on the body surface and/or inside the body. However, there are also techniques like capacitive electrocardiogram or bioimpedance that reflect electrical activity or passive electrical properties or thermal properties (infrared thermography). In addition, photopleythysmographic methods depend on optical properties (like scattering and absorption) of biological tissues and--mainly--blood. As all unobtrusive sensing modalities are always fragile and at risk of being contaminated by disturbances (like motion, rapidly changing environmental conditions, triboelectricity), the scope of the paper includes a survey on redundant sensor arrangements. Finally, this review also provides an overview of automotive demonstrators for vital sign monitoring.
Date issued
2018-09-13Department
Massachusetts Institute of Technology. Institute for Medical Engineering & ScienceJournal
Sensors
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Leonhardt, Steffen, Lennart Leicht, and Daniel Teichmann, "Unobtrusive vital sign monitoring in automotive environments--a review." Sensors 18, 9 (2018): no. 3080 doi 10.3390/s18093080 ©2018 Author(s)
Version: Final published version
ISSN
1424-8220