Naturalistic Driving Study: Alcohol Sensor Performance (2015) / Chapter Skim
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Pages 19-21
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19 Conclusions and Suggested Research Researchers used a multifaceted approach to further investigate the standard alcohol sensor in SHRP 2 vehicles and develop an initial alcohol-detection algorithm based on the sensor data. The second phase of research was designed with this goal in mind.
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20 weakly to moderately able to differentiate imbibed versus unimbibed alcohol. In particular, the alcohol-detection algorithm tended to classify unimbibed alcohol trips as imbibed trips, which meant a tendency for false positives.
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From page 21... ...
21 Recommendation 1: Consider the Following Criteria in an Alcohol-Detection Algorithm for Use with the SHRP 2 Data Any algorithm that is developed for use on the alcohol sensor should consider the following criteria: • There is large variance in the warm-up period for this sensor before it begins to produce stable readings. This can last as long as 2 minutes.
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