66 results about "Breath alcohol" patented technology

A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects breath alcohol level of a vehicle operator and prevents vehicle ignition if a breath alcohol level is greater than or equal to a threshold value. The controller requires the vehicle operator to periodically take breath analyzer “retests” after vehicle ignition in order to allow vehicle operation to continue. The breath analyzer includes first and second alcohol sensors. The second alcohol sensor is a backup for the first alcohol sensor and becomes operational if the first alcohol sensor malfunctions. The first or second alcohol sensors may be a mouth contamination sensor that distinguishes between mouth contaminants and alcohol contained within a deep lung breath sample. The system also includes sensors configured to detect impact (abuse) and vehicle motion.

A breath alcohol detection device includes a one-piece multi-passage block with attached sensors, a valve and a fuel cell. The cell accurately determines the BrAC of a prospective vehicle operator. In the event the BrAC is less than the legal maximum for a territory, the device unlocks an ignition interlock to permit starting of the engine and operation of the vehicle.

A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The controller compares detected breath alcohol levels of the vehicle operator with a threshold value, and is configured to prevent vehicle ignition if a breath alcohol level detected by the breath analyzer is greater than or equal to a threshold value. The controller also requires the vehicle operator to periodically take breath analyzer retests after vehicle ignition in order to allow vehicle operation to continue. The controller can reduce the frequency of periodic retests in response to one or more retests when the breath alcohol level of the vehicle operator is below a threshold value. The system may include a transdermal alcohol sensor, a mouth contamination sensor, a mouth contamination sensor, and redundant alcohol sensors.

A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects the breath alcohol level of a vehicle operator and is configured to prevent vehicle ignition if a breath alcohol level is greater than or equal to a threshold value. The controller requires the vehicle operator to periodically take breath analyzer “retests” after vehicle ignition in order to allow vehicle operation to continue. The breath analyzer also detects the presence of alcohol within the vehicle, such as alcohol emanating from an open container of alcohol. The controller may override one or more periodic retests if alcohol is not detected within the vehicle over a predetermined period of time. In addition, the controller may increase the frequency of periodic retests of the vehicle operator in response to detecting alcohol within the vehicle.

A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects the breath alcohol level of a vehicle operator and is configured to prevent vehicle ignition if a breath alcohol level is greater than or equal to a threshold value. The controller requires the vehicle operator to periodically take breath analyzer “retests” after vehicle ignition in order to allow vehicle operation to continue. The breath analyzer also includes a mouth contamination sensor that is configured to distinguish between contaminants in the mouth of a vehicle operator and alcohol contained within a deep lung breath sample of the vehicle operator. The controller may require a breath alcohol retest of the vehicle operator via the breath analyzer in response to detecting the presence of a contaminant within the mouth of the vehicle operator.

When a pressure of a breath is kept to fall within a valid range, a CPU of a breath alcohol measuring apparatus updates a breath amount accumulation value that is an accumulation value of the amount of the breath blown into a mouth piece; when the breath pressure reaches the range outside the valid range, the CPU resets the breath amount accumulation value; and when the breath amount accumulation value reaches a valid breath amount, the CPU measures the alcohol concentration by an alcohol sensor. A breath pressure display portion is arranged at the position that can visually be recognized by a to-be-measured person who is blowing into the mouth piece.

An system for monitoring alcohol in the breath of a test client confirms the identity of the test client based on spirometric data. The system includes a sample chamber receiving a breath sample, an alcohol sensor measuring the alcohol content of the breath sample, and a spirometric sensor generating spirometric data from the breath sample over the test clients entire exhalatory phase. A processor analyzes the spirometric data with stored client characterization data for a known client to confirm the identity of the test client. The client characterization data can be a probability density in a phase space in which at least two spirometric variables (e.g., flow and volume time-series data) are correlated.

A device, a system and a process is provided for the use of a breath alcohol-measuring device (1) with improved personal identification. The breath alcohol-measuring device (1) is combined with a pulse oscillometer (4) such that the initially measured values of the complex airway resistance of a test subject are stored in an evaluating and control unit (3) connected to the breath alcohol-measuring device (1) and to the pulse oscillometer (4) and compared to subsequently measured values of a test subject. A breath alcohol measurement is released and / or a vehicle immobilizer (2) is actuated in case of agreement of stored values with subsequently measured values.

A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects the breath alcohol level of a vehicle operator and is configured to prevent vehicle ignition if a breath alcohol level is greater than or equal to a threshold value. The controller requires the vehicle operator to periodically take breath analyzer “retests” after vehicle ignition in order to allow vehicle operation to continue. The breath analyzer also includes a mouth contamination sensor that is configured to distinguish between contaminants in the mouth of a vehicle operator and alcohol contained within a deep lung breath sample of the vehicle operator. The controller may require a breath alcohol retest of the vehicle operator via the breath analyzer in response to detecting the presence of a contaminant within the mouth of the vehicle operator.

A process is provided for distinguishing between wet from dry gas with a breath alcohol measuring device, in which a defined sample volume from a gas blown in is fed for sampling to an electrochemical sensor (6), which generates a sensor signal that depends on the reaction of ethyl alcohol. The sensor signal is sent to a control and evaluating unit (4) and is evaluated there to determine the alcohol concentration. To distinguish dry gas from wet gas, provisions are made for the sensor signal to be detected in its time dependence and for the presence of wet gas to be determined when it is observed that a sensor signal of a polarity opposite the polarity of the sensor signal caused by the reaction of ethyl alcohol appeared at first at the beginning of sampling. The process may be used, e.g., in conjunction with the calibration of breath alcohol measuring devices or in so-called interlock systems with a breath alcohol measuring device in order to recognize attempts at manipulation.

An system for monitoring alcohol in the breath of a test client confirms the identity of the test client based on spirometric data. The system includes a sample chamber receiving a breath sample, an alcohol sensor measuring the alcohol content of the breath sample, and a spirometric sensor generating spirometric data from the breath sample over the test client's entire exhalatory phase. A processor analyzes the spirometric data with stored client characterization data for a known client to confirm the identity of the test client. The client characterization data can be a probability density in a phase space in which at least two spirometric variables (e.g., flow and volume time-series data) are correlated.

A breath alcohol measuring device (7) is provided with features for superior handling especially of the replaceable mouthpiece (1). A direct physical contact between the test subject being tested and the measuring device is practically ruled out by the combination. The mouthpiece (1) of the breath alcohol measuring device (7) has a trapezoidal cross section, which is complementary to a corresponding negative shape in a holder (6) of the breath alcohol measuring device (7) for the flush mounting of the mouthpiece (1).

The apparatus is for use with a motor vehicle operated by a driver and includes a scanning device and a computing facility. The scanning device, in use, gathers information about the eye activity of the driver. The computing facility determines, based on the information gathered, whether the driver is watching the road. The determination can include one or more of: ascertaining an orientation of at least one of the driver's eyes; and ascertaining an orientation of the head of the driver. The computing facility can be defined by a microprocessor. If the facility determines that the driver is not watching the road, the facility can trigger an alarm state of the vehicle. The apparatus can be employed for persons convicted of driving while texting in a manner analogous to the manner in which breath alcohol ignition interlocks are employed for persons convicted of driving under the influence of alcohol.

The invention relates to an automobile safety system based on biometric feature recognition and an application method of the automobile safety system. The system comprises an iris recognition module, a breath alcohol detection module, a locking module, a control module, a communication module and a man-machine interaction module, wherein the iris recognition module is used for collecting iris images of users and judging whether the users are the authorized users or not based on the iris images of the users; the breath alcohol detection module is used for detecting airflow breathed out by the users and judging whether the users are in the drunken state or not; the locking module is used for locking operation of mechanical devices; the control module is used for controlling opening and closing of the locking module through judgment on the user states, the communication module is used for transmitting user information with the outside; the man-machine interaction module is used for reminding the users through voice information. By means of the automobile safety system, the driver identity and drunk driving can be detected at the same time, and cheats in driving are avoided, and thus traffic safety is guaranteed.