| CPC B60W 50/14 (2013.01) [B60K 28/063 (2013.01); B60W 10/06 (2013.01); B60W 40/08 (2013.01); B60W 50/10 (2013.01); B60W 50/12 (2013.01); G01N 33/4972 (2013.01); G06V 20/597 (2022.01); G06V 40/161 (2022.01); B60W 2040/0836 (2013.01); B60W 2050/146 (2013.01); B60W 2420/403 (2013.01); B60W 2540/24 (2013.01)] | 10 Claims |
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1. A drunk driving prevention system comprising:
a camera configured to capture an image of a face of a driver seated in a driver's seat of a vehicle;
a sensor module configured to, during breath-checking of the driver, measure alcohol content in a breath exhaled from the driver; and
a control module configured to:
perform, based on the captured image, the breath-checking;
determine whether the breath-checking is completed,
determine, based on the measured alcohol content, whether the driver is intoxicated; and
determine, based on determining whether the driver is intoxicated, whether to block starting of an engine of the vehicle;
wherein the control module is configured to:
calculate a first estimated breathing period from a change to a shape of a mouth of the driver in the captured image; and
check whether a breath in the captured image matches a breath pulled into the sensor module based on a comparison between the first estimated breathing period and a second estimated breathing period determined from a change to a breath volume pulled in the sensor module to complete the breath-checking.
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