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Telemed J E Health. 2009 Mar;15(2):182-9. doi: 10.1089/tmj.2008.0090.

Nonintrusive biological signal monitoring in a car to evaluate a driver's stress and health state.

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1
Graduate Program in Bioengineering, Seoul National University, Seoul, Korea.

Abstract

Nonintrusive monitoring of a driver's physiological signals was introduced and evaluated in a car as a test of extending the concept of ubiquitous healthcare to vehicles. Electrocardiogram, photoplethysmogram, galvanic skin response, and respiration were measured in the ubiquitous healthcare car (U-car) using nonintrusively installed sensors on the steering wheel, driver's seat, and seat belt. Measured signals were transmitted to the embedded computer via Bluetooth(R) communication and processed. We collected and analyzed physiological signals during driving in order to estimate a driver's stress state while using this system. In order to compare the effect of stress on physical and mental conditions, two categories of stresses were defined. Experimental results show that a driver's physiological signals were measured with acceptable quality for analysis without interrupting driving, and they were changed meaningfully due to elicited stress. This nonintrusive monitoring can be used to evaluate a driver's state of health and stress.

PMID:
19292628
DOI:
10.1089/tmj.2008.0090
[Indexed for MEDLINE]
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