The present invention relates to a breath analyzing system and method. In particular the invention relates to a breath analyzing system and method arranged to provide tracer-aided classification of the presence of a breath intoxicating substance above a limit concentration and providing status to a user about the progression of the classification. The method/system detects a peak in the tracer signal and defines an evaluation period corresponding to the duration of the peak. Measurements classification of the concentration of the intoxicating substance is used for the evaluation period, and if required to achieve a result, for a plurality of evaluation periods.

Disclosed are a drunk driving prevention system and a drunk driving prevention method using the system that includes a sensor module measuring the alcohol content in exhaled breath of a driver at the time of breath-checking of the driver and a control module configured to check an intoxication state of the driver based on the alcohol content measured by the sensor module to determine whether or not a breath-checking is complete and block an engine start when the breath-checking fails, wherein the control module includes a bypass control unit switching a vehicle into a drivable state when the breath-checking fails.

Disclosed is a system for preventing drunk driving of a vehicle, the system including: an input unit through which a transfer intention to transfer a control privilege of a vehicle from a registered driver to a passenger is input; a sobriety determination unit configured to determine a current driver's inebriation state through a breathalyzer provided in the vehicle when the transfer intention is input through the input unit; a driver verification unit configured to identify personal information of the current driver seated on a driver's seat; and a control unit configured to transfer the control privilege of the vehicle to the passenger when the passenger is measured as being able to drive by the sobriety determination unit and the passenger and the current driver are identified to be the same by the driver verification unit.

According to the present disclosure, a drunk driving prevention system including: an alcohol detection unit configured to detect a driver's inebriation through the breath test device provided in a vehicle; a computation unit configured, when the driver is detected to be in a drunk state by the alcohol detection unit, to compute a driving-possible time at which the drunk state is resolved in the future so that driving is possible; and a notification unit configured to output the driving-possible time or whether or not driving is possible through an infotainment system of the vehicle or a driver's terminal is disclosed.

Disclosed are a drunk driving prevention system and a method of controlling the system that includes a sensor module measuring a alcohol content in the exhaled breath of a driver during a breath-checking of the driver and a control module configured to check the intoxication state of the driver from the alcohol content measured by the sensor module to determine whether the breath-checking is complete and block an engine start when the breath-checking fails, wherein the control module includes a check unit displaying breath-checking guide information through a display unit and the check unit displays the breath-checking guide information based on an engine start input of the driver.

A method and a system of deploying ignition interlock device functionality. The method comprises receiving data in authentication of a user account associated with the IID; rendering a user interface at the mobile computing device, the user interface including indication of a status of the user account associated with the IID; and receiving a selection of a user action responsive to the status of the user account associated with the IID.

A transport device with an occupant compartment includes a control apparatus, a transport device door, a transport device roof, a safety belt, a transport device seat, a headset, a headrest, a rearview mirror, a sun visor, and/or a dashboard, as well as a sensor for breath gas analysis, a position locating device for determining the distance between the sensor and the front side of the head of a compartment occupant, a data processing device, and in some cases a sensor for measuring at least one vital sign. The sensor or sensors are present on or in the control apparatus, the transport device door, the transport device roof, the safety belt, the transport device seat, the headset, the headrest, the rearview mirror, the sun visor, and/or the dashboard, and the data processing device is in operative connection with a device for blocking the transport device and/or with an information output unit.

An apparatus for detecting an alcohol component of a driver's breath includes an inlet that absorbs a driver's exhalation and a passenger's exhalation, respectively, a sensor that detects an alcohol component in 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 that determines whether a passenger is on board a vehicle and controls the driver valve and the passenger valve to be open or closed based on a determination result. Therefore, the driver's breath is distinguished from the passenger's breath and the influence of the passenger is removed to detect the alcohol component in the driver's breath, thereby accurately determining the driver's drinking state.

Devices, methods and systems related to wearable patch having blood alcohol content detector. In some embodiments, a wearable patch can include a patch structure having one or more layers and configured to allow the patch to be worn by a user, and an analyzer component implemented on or at least partially within the patch structure and configured to measure alcohol content level in the user. The wearable patch can further include an interface component implemented on or at least partially within the patch structure and in communication with the analyzer component, with the interface component being configured to provide a notification based on the measured alcohol content. In some embodiments, such a wearable patch can be a part of a system such as a monitoring system or a compliance system.

In a method and apparatus for measuring an alcohol concentration, a blood alcohol concentration of a driver is rapidly and precisely measured by selecting a plurality of wavelengths based on the absorbance for blood components exerting an influence on the measurement result of the blood alcohol concentration and by measuring the blood alcohol concentration of the driver based on the absorbance detected with respect to a physical body of a user by using the plurality of selected wavelengths. Starting of the vehicle is controlled based on the blood alcohol concentration of the driver, which is measured by measuring the alcohol concentration.