29 results about "Breath alcohol" patented technology

An electrochemical fuel cell measures ethanol in human breath and a process maintains such an electrochemical fuel cell. The electrochemical fuel cell includes a first electrode (1), a second electrode (2) and a third electrode (3). The first electrode (1) is used as a measuring electrode in a regular operating mode of the electrochemical fuel cell and as a measuring electrode or as a reference electrode in a maintenance mode of the electrochemical fuel cell. The second electrode (2) is used as a counter electrode in the regular operating mode of the electrochemical fuel cell and as a measuring electrode or as a reference electrode in the maintenance mode of the electrochemical fuel cell. The third electrode (3) is used as a counter electrode in the maintenance mode of the electrochemical fuel cell.

A breath alcohol device calibration system includes a computerized calibration module operable to calibrate a candidate breath alcohol device using a reference gas of known alcohol concentration, and a reference gas tank identification module operable to identify a reference gas tank that is coupled to the breath alcohol device calibration system. Identification is performed using at least one distinguishing characteristic of the coupled tank, the distinguishing characteristic providing reference gas tank information including at least the known alcohol concentration of gas in the reference gas tank. The reference gas tank identification module is further operable to read a temperature history of the tank from an electronic device coupled to the tank, and to indicate an error condition if the temperature history of the tank indicates temperatures below a first temperature threshold over the tank's recent temperature history to potentially result in incomplete mixing of the reference gas.

This disclosure relates generally to a method and system for sensing alcohol intoxication and raising an alert. State-of-the-art methods for detecting alcohol intoxication majorly includes breath alcohol devices, bodily fluid testing, transdermal sensors, mathematical algorithms, and optical techniques. However, the impact of alcohol is not same for all but differs based on individuals' physiological traits and capacity to tolerate. Personalized systems that can sense alcohol intoxication based on individuals present alcohol consumption activity as well as the past history of consumption is not yet achieved. The proposed method of sensing the alcohol intoxication state of the subject is based on cumulative scoring technique using sensors and applications pre-installed in an GPS enabled wearable device and a mobile device. The method also triggers an alert to the subject consuming alcohol as well as to an emergency contact about altered physical and cognitive functioning under the influence of the alcohol.

A breath alcohol device calibration system includes a computerized calibration module operable to calibrate a candidate breath alcohol device using a reference gas of known alcohol concentration, and a reference gas tank identification module operable to identify a reference gas tank that is coupled to the breath alcohol device calibration system. Identification is performed using at least one distinguishing characteristic of the coupled tank, the distinguishing characteristic providing reference gas tank information including at least the known alcohol concentration of gas in the reference gas tank. The reference gas tank identification module is further operable to read a temperature history of the tank from an electronic device coupled to the tank, and to indicate an error condition if the temperature history of the tank indicates temperatures below a first temperature threshold over the tank's recent temperature history to potentially result in incomplete mixing of the reference gas.

A method for passive breathing alcohol detection, the method comprising: A) passively obtaining a first air sample from air within a vehicle interior; b) determining the concentration of (i) tracer gas and (ii) analyte present in the first air sample; c) passively obtaining a second air sample from the air within the interior of the vehicle; d) determining the concentration of (i) tracer gas and (ii) analyte present in the second air sample; e) continuing to passively obtain a number N of air samples from the air within the interior of the vehicle and, for each air sample obtained, determining the concentration of tracer gas and analyte present in the air sample; f) determining the number of peaks of the concentration of the tracer gas and the number of peaks of the concentration of the analyte present in each of the air samples; g) determining a confidence interval based on the number of peaks of the concentration of the tracer gas and the number of peaks of the concentration of the analyte; and H) controlling operation of the vehicle based on a function of the confidence interval and the concentration of the analyte present in the air sample.

Methods and system for inhibiting a driver from cheating a vehicle breath alcohol sensor. The breath alcohol sensor is mounted within a vehicle and determines an alcohol concentration of a breath of an occupant. An image sensor generates images of the occupant within the vehicle. A processor is configured to determine whether the occupant is attempting to cheat the breath alcohol sensor by executing image processing on the images to identify a face of the occupant, objects in front of the face of the occupant, and / or whether the occupant is actually the one blowing into the breath alcohol sensor. If the image processing yields results that the driver is attempting to cheat the sensor, the processor can inhibit driver operation of the vehicle.

The invention relates to an electrochemical sensor device (10) for a breath alcohol measuring device (100), a corresponding breath alcohol measuring device (100) and a method for determining the activity of an electrode of an electrochemical sensor. The electrochemical sensor device comprises an electrochemical sensor with at least two electrodes (12, 14). The electrochemical sensor device further comprises a heat source (16). The heat source is arranged such that, when activated, the heat source selectively heats one of the electrodes (12) of the electrochemical sensor.

The invention relates to a method for determining the blood-alcohol content, BAC, of a person in a vehicle (1), comprising the steps of: recording one or more images of the person in the vehicle (1) by means of one or more imaging units (2) arranged in the vehicle; analysing the images by means of a data-processing unit (3) and determining body data and facial data using a database (5); calculating, from the facial data, three-dimensional target vectors V1 and / or V2 of the mouth and / or the nose of the person with respect to an air-alcohol-measuring instrument (4) arranged in the vehicle (1), in particular an infrared laser spectrometer designed for directional and contactless measuring; activating the air-alcohol-measuring instrument (4) and measuring the breath alcohol content BRAC of the person in the region of the mouth and / or nose, taking into account the target vectors V1 and / or V2; and calculating a correction factor K taking into account the body data, in particular the sex, the weight, the age and / or the height of the person; and determining the blood-alcohol content BAC = K * BRAC.

A system for controlling the operation of a vehicle, the system comprising: a sound synthesizer unit for providing voice communications to a driver; a speech recognition unit for receiving speech from the driver; a breath alcohol sensor unit for detecting the presence of alcohol in the driver's breath and providing a signal representative thereof; a vehicle operation interface for controlling the operation of the vehicle; and a controller for (i) selectively causing the sound synthesizer unit to speak to the driver, (ii) operating the speech recognition unit to detect speech from the driver, (iii) receiving a signal from the breath alcohol sensor unit, and (iv) providing commands to the vehicle operation interface to control the operation of the vehicle depending on the signal received from the breath alcohol sensor unit.

The invention discloses a temperature control method and system for detection of an exhaled gas alcohol content detector. The method comprises the steps of obtaining a current temperature, and calculating a temperature difference between the current temperature and a target temperature and a temperature difference change rate; fuzzy processing is carried out on the temperature difference and the temperature difference change rate, and membership degrees corresponding to the temperature difference and the temperature difference change rate are obtained; querying a fuzzy membership degree of the control parameter from a preset fuzzy rule table according to the temperature difference and the membership degree of the temperature difference change rate; performing clearness processing on the fuzzy membership degree of the control coefficient to obtain a value of the control coefficient; and substituting the value of the control coefficient into a PID control formula so as to output a control quantity to carry out temperature control on an exhaled gas alcohol content detector. According to the invention, high-precision real-time control of the temperature can be realized, good adaptability to the change of a verification environment is realized, the uncertainty and nonlinearity of the temperature change are solved, real-time control of heating or refrigeration is realized, and the accuracy of a verification result is improved.

Methods (200; 250) and systems (100) for inhibiting a driver (102) from cheating a vehicle breath alcohol sensor. The breath alcohol sensor (106) is mounted within a vehicle (101) and determines an alcohol concentration of a breath of an occupant. An image sensor (108) generates images (300; 410; 420) of the occupant within the vehicle (101). A processor (120) is configured to determine whether the occupant is attempting to cheat the breath alcohol sensor (106) by executing image processing on the images (300; 410; 420) to identify a face of the occupant, objects in front of the face of the occupant, and / or whether the occupant is actually the one blowing into the breath alcohol sensor (106). If the image processing yields results that the driver (102) is attempting to cheat the breath alcohol sensor (106), the processor (120) can inhibit driver operation of the vehicle (101).

1. The name of the design product: alcohol tester. 2. The use of the design product: for human breath alcohol content detection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

An electrochemical sensor arrangement (10) for a breath alcohol measuring device (100), to a corresponding breath alcohol measuring device (100) as well as to a process for determining a vitality of electrodes of an electrochemical sensor. The electrochemical sensor arrangement comprises an electrochemical sensor with at least two electrodes (12, 14). The electrochemical sensor arrangement further comprises a heat source (16). The heat source is arranged such that it, upon activation, selectively heats one of the electrodes (12) of the electrochemical sensor.

A breath alcohol device calibration system includes a computerized calibration module operable to calibrate a breath alcohol device, and an interface operable to couple the breath alcohol device to a remote server. The interface uses a connection employing a cryptographic function such that data stored on the breath alcohol device can be securely transferred from the breath alcohol device to the remote server using the calibration system. The interface is further operable to transfer data stored on the breath alcohol device from the breath alcohol device to the remote server directly without storing the data in nonvolatile storage on the calibration station.

The invention relates to a gas measuring device (100) and a gas measuring method capable of measuring the concentration of a component in a gas mixture (A), in particular the concentration of breath alcohol in a breath sample. The gas mixture (A) flows into a tubular input unit (1) which is detachably connected to a base body (6, 16). A portion of the gas mixture (A) is diverted, and the resulting gas sample (Gp) flows into a measuring chamber (2). A gas sensor (50) measures the concentration of the component in the gas sample (Gp). The gas sample (Gp) is diverted from the input unit (1) at an inlet point (Pe) and re-enters the input unit (1) or a channel leading to the environment at a downstream outlet point (P.a1). The measuring chamber (2) is connected to these two points (Pe, P.a1) by two different fluid guide units (3, 4).

1. Name of the product in this design: Portable alcohol tester. 2. Purpose of this design: For the detection of human breath alcohol content. 3. The key design feature of this product is its shape. 4. Images or photos that best illustrate the design key points: usage status reference diagrams.

Electrochemical sensors commonly used in breathalyzer devices detect the alcohol concentration in a fluid sample. The fluid sample is introduced into the electrochemical sensor, and a current is generated by the oxidation of alcohol within the fluid. The electrical output from the electrochemical sensor, plotted over time, forms an output curve, which can be used to estimate the alcohol concentration in the fluid sample. The technology disclosed herein includes various procedures for determining the amount of an electrochemically convertible substance in a fluid sample using a breathalyzer device, including detecting the water saturation level of the fluid sample. The disclosed technology involves measuring the electrochemical sensor outputs to quantify the alcohol content of the fluid sample.

The improved breath alcohol ignition interlock is for use with a vehicle having a proximity pilot circuit and is of the type adapted to: receive a signal when a vehicle has been enabled for activation of the drivetrain; upon receipt of that signal, trigger a breath tester to prompt for and receive a breath sample; upon receipt of a breath sample, test for alcohol; and upon a determination that the amount of alcohol in the sample is below the legal limit or other threshold, activate a relay. The improvement comprises: a normally open relay coupled to an ignition active circuit of the vehicle for activation thereby; a normally closed relay coupled to the ignition interlock for activation thereby; and a resistor, coupled to the relays in series, between the proximity pilot circuit and ground.

The embodiment of the invention discloses a drunk driving detection method and device, electronic equipment and a storage medium. The method comprises the steps that breathing alcohol data, biological characteristic data and driving behavior data of a driver are acquired; performing space-time alignment processing on the breathing alcohol data, the biological characteristic data and the driving behavior data; and inputting the breath alcohol data, the biological characteristic data and the driving behavior data after the space-time alignment processing into a drunk driving detection model, and performing drunk driving detection on the breath alcohol data, the biological characteristic data and the driving behavior data after the space-time alignment processing through the drunk driving detection model to obtain a first drunk driving detection result. According to the embodiment of the invention, the problem that the breath alcohol data is influenced by environmental conditions can be solved through the multi-modal data, and the accuracy of a detection result is improved.

The application provides a breath alcohol self-detection system and method. The breath alcohol self-detection system is used for self-detection of breath alcohol of a driver of a vehicle, and comprises a self-detection unit, a control unit electrically connected with the self-detection unit, and a to-be-detected state detection unit electrically connected with the control unit, wherein the self-detection unit comprises an alcohol detector. The breath alcohol self-detection system and method are simple in operation, convenient to use, and can be widely applied.

A breath alcohol device calibration system includes a computerized calibration module operable to calibrate a breath alcohol device, and an interface operable to couple the breath alcohol device to a remote server. The interface uses a connection employing a cryptographic function such that data stored on the breath alcohol device can be securely transferred from the breath alcohol device to the remote server using the calibration system. The interface is further operable to transfer data stored on the breath alcohol device from the breath alcohol device to the remote server directly without storing the data in nonvolatile storage on the calibration station.

A breath alcohol measuring apparatus is disclosed. According to at least one embodiment among various embodiments of the present disclosure, an apparatus for optically detecting an ethanol component from exhaled breath of a respiratory tract may comprise: a light source unit disposed at a first position and emitting light; a light detection unit disposed at a second position and detecting light emitted from the light source unit; and a processor for extracting an ethanol component included in an exhaled breath signal of the respiratory tract from an optical signal detected by the light detection unit and calculating a blood alcohol concentration on the basis of the extracted ethanol component.

This disclosure relates generally to a method and system for sensing alcohol intoxication and raising an alert. State-of-the-art methods for detecting alcohol intoxication majorly includes breath alcohol devices, bodily fluid testing, transdermal sensors, mathematical algorithms, and optical techniques. However, the impact of alcohol is not same for all but differs based on individuals' physiological traits and capacity to tolerate. Personalized systems that can sense alcohol intoxication based on individuals present alcohol consumption activity as well as the past history of consumption is not yet achieved. The proposed method of sensing the alcohol intoxication state of the subject is based on cumulative scoring technique using sensors and applications pre-installed in an GPS enabled wearable device and a mobile device. The method also triggers an alert to the subject consuming alcohol as well as to an emergency contact about altered physical and cognitive functioning under the influence of the alcohol.

1. The name of the design product: exhaled gas alcohol content detector. 2. The use of the design product: for human exhaled gas alcohol content detector. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

A method for passive breath alcohol detection, the method comprising: A) passively obtaining a first air sample from the air inside the interior of a vehicle; B) determining the concentration of (i) a tracer gas, and (ii) an analyte present in the first air sample; C) passively obtaining a second air sample from the air inside the interior of the vehicle; D) determining the concentration of (i) the tracer gas, and (ii) the analyte present in the second air sample; E) continuing to passively obtain an N number of air samples from the air inside the interior of the vehicle, and for each air sample obtained, determining the concentration of the tracer gas and the analyte present in the air sample; F) determining a number of peaks in the concentration of the tracer gas and a number of peaks in the concentration of the analyte present in each of the air samples; G) determining a confidence interval based on the number of peaks in the concentration of the tracer gas and the number of peaks in the concentration of the analyte; and H) controlling operation of the vehicle based on a function of the confidence interval and the concentration of the analyte present in the air samples.

The invention relates to a gas measuring device (100) and a gas measuring method, which are capable of measuring the concentration of a component in a gas mixture (A), in particular the concentration of respiratory alcohol in a respiratory sample. The gas mixture (A) flows into a tubular inlet unit (1) which is detachably connected to a base body (6, 16). A part of the gas mixture (A) is branched, and the gas sample (Gp) thus produced flows into the measuring chamber (2). A gas sensor (50) measures a measure for the concentration of a component in a gas sample (Gp). The gas sample (Gp) is branched off from the inlet unit (1) at an inlet point (P.e) and enters the inlet unit (1) again or into a channel to the environment at a downstream outlet point (P.a1). The measuring chamber (2) is connected to the two points (P.e, P.a1) by means of two different fluid-conducting units (3, 4).

The improved breath alcohol ignition interlock is for use with a vehicle having a proximity pilot circuit and is of the type adapted to: receive a signal when a vehicle has been enabled for activation of the drivetrain; upon receipt of that signal, trigger a breath tester to prompt for and receive a breath sample; upon receipt of a breath sample, test for alcohol; and upon a determination that the amount of alcohol in the sample is below the legal limit or other threshold, activate a relay. The improvement comprises: a normally open relay coupled to an ignition active circuit of the vehicle for activation thereby; a normally closed relay coupled to the ignition interlock for activation thereby; and a resistor, coupled to the relays in series, between the proximity pilot circuit and ground.

Methods and system for inhibiting a driver from cheating a vehicle breath alcohol sensor. The breath alcohol sensor is mounted within a vehicle and determines an alcohol concentration of a breath of an occupant. An image sensor generates images of the occupant within the vehicle. A processor is configured to determine whether the occupant is attempting to cheat the breath alcohol sensor by executing image processing on the images to identify a face of the occupant, objects in front of the face of the occupant, and / or whether the occupant is actually the one blowing into the breath alcohol sensor. If the image processing yields results that the driver is attempting to cheat the sensor, the processor can inhibit driver operation of the vehicle.

To provide a method for quickly estimating an alcohol level in a driver's breath.SOLUTION: There is provided a method for passive breath alcohol detection comprising: A) passively obtaining a first air sample from an air inside a vehicle; B) determining levels of (i) a tracer gas (CoTG) and (ii) analyte (CoA) present in the first air sample; E) continuing to passively obtain an N number of air samples from the air inside the vehicle, and for each air sample obtained, determining the levels of CoTG and CoA present in the air sample; F) determining a number of level peaks in the CoTG and a number of level peaks in the CoA present in each of the air samples; G) determining a confidence interval on the basis of the number of level peaks in the CoTG and the number of level peaks in the CoA; and H) controlling operation of the vehicle on the basis of a function of the confidence interval and CoA present in the air samples.SELECTED DRAWING: None