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Passive Sensing of Driver Intoxication
Technical Paper
2006-01-1321
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A sensor that passively monitors the driver for intoxication has been demonstrated. The driver's blood alcohol concentration (BAC) is obtained by sensing alcohol and CO2 in air drawn from the vehicle cabin. With a legally drunk driver, the steady state alcohol concentration can be as low as 0.3 ppm, even with the doors and windows closed. The sensor uses infrared transmission to quantify alcohol vapor and CO2. A vapor concentrator increases alcohol sensitivity - an adsorber collects alcohol vapor and releases it as a concentrated burst at 1 minute intervals. A valid measure of driver BAC is ordinarily available 1.5 minutes after the driver gets in. Sensed CO2 must be above a threshold for a valid measurement.
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Authors
Citation
Lambert, D., Myers, M., Oberdier, L., Sultan, M. et al., "Passive Sensing of Driver Intoxication," SAE Technical Paper 2006-01-1321, 2006, https://doi.org/10.4271/2006-01-1321.Also In
SAE 2006 Transactions Journal of Passenger Cars: Electronic and Electrical Systems
Number: V115-7; Published: 2007-03-30
Number: V115-7; Published: 2007-03-30
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