Patent ID: 11945461
Assignee: HYUNDAI MOBIS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC B  A  G | IPC B  G

Claim 10:
11. A drunk driving prevention system comprising:
a sensor module configured to, during breath-checking of a driver of a vehicle, measure alcohol content in the driver's exhaled breath; and
a control module configured to:
check, based on the measured alcohol content, whether the driver is intoxicated;
determine whether the breath-checking is completed; and
block starting of an engine of the vehicle when the driver fails the breath-checking,

wherein the control module includes a check unit configured to display, via a display unit of the vehicle, alcohol test guide information in response to receiving an engine start input from the driver,
wherein the system further comprises a camera configured to capture an image of a face of the driver seated in a driver's seat of the vehicle, and
wherein the control module is configured to:
determine whether the driver is wearing a facial mask based on the image of the driver's face captured by the camera and check whether the driver is intoxicated based on the alcohol content measured by the sensor module, to activate an engine start block device of the vehicle,
determine that the breath-checking is completed when a breath volume of the driver supplied into the sensor module is equal to or greater than a first reference breath volume, and
replace the first reference breath volume with a second reference breath volume when it is determined that the driver is wearing the facial mask.