What is it about?
Sobriety test, which commonly uses a breathalyser for estimating blood alcohol content (BAC) from a breath sample, is commonly used to detect drunk driving. The detection often gives rise to sanitary concern and violation of human right. This research proposes a new method that employs non-invasive measurement of photoplethysmography (PPG) signal for detecting BAC of the test subject under the sobriety test.
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Why is it important?
We have found that there is a regular pattern that could be used to distinguish high and low alcohol intake levels. Extensive experimental observation shows that there is a threshold closely related to the amount of alcohol consumption in the human body, lower or higher than it will result in a significant change in human heart rate behavior.
Perspectives
The proposed design possesses the potential to be used with the vehicle safety system for preventing the driver from drunk driving and other applications.
Professor Chun-Liang Lin
National Chung Hsing University
Read the Original
This page is a summary of: Non-invasive detection of alcohol concentration based on photoplethysmogram signals, IET Image Processing, February 2018, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-ipr.2017.0625.
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