CPC G01N 33/4972 (2013.01) [B60K 28/063 (2013.01)] | 20 Claims |
1. An apparatus for detecting an alcohol component of a driver's breath, the apparatus comprising:
a first inlet configured to absorb a driver's exhalation and a second inlet configured to absorb a passenger's exhalation, respectively;
a sensor configured to detect an alcohol component in at least one of the driver's exhalation or the passenger's exhalation;
a driver valve controlled to be opened or closed to allow the driver's exhalation to be introduced into the sensor, and a passenger valve controlled to be opened or closed to allow the passenger's exhalation to be introduced into the sensor; and
a controller configured to determine whether a passenger is on board a vehicle and control the driver valve and the passenger valve to be open or closed based on a determination result.
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