Breath Tester Visual Indicia for Reliable User Verification
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Solution Overview
Problem
Existing sobriety monitoring devices face challenges in positively identifying the user taking the breath test due to the use of digital imagers that result in distorted facial recognition and the potential for tampering.
Innovation Solution
A sobriety monitoring system that integrates a handheld breath testing device with visible identification indicia, such as random numbers, colors, or geometric symbols, displayed on an LCD screen or LED, to ensure user identification, and transmits results wirelessly to a monitoring station, which includes an alarm for threshold breaches or user mismatch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a digital imager is used to capture user photographs, then user identification is attempted, but the fish eye effect from wide-angle lenses makes the user hard to recognize
Solution Approach 1:
The patent introduces visible identification indicia (such as random numbers, colors, or geometric symbols) displayed on an LCD screen or LED as an intermediary element. These indicia serve as a mediator between the user and the identification system, providing a clear, unambiguous identifier that does not suffer from the distortion problems of wide-angle lens photography. The indicia are captured in the photograph and transmitted to the monitoring station for verification.
2Reliability
If breath temperature and pressure sensors are used to detect air source, then tampering detection is improved, but the system complexity increases
Solution Approach 1:
The patent extracts the identification function from the complex sensor system and implements it through a separate, simpler mechanism: visible identification indicia displayed on an LCD screen or LED. This separates the identification task from the breath analysis sensors, reducing overall system complexity while maintaining or improving identification reliability.
3Reliability
If visible identification indicia are displayed on LCD screen or LED, then user identification reliability is improved, but energy consumption increases
Solution Approach 1:
The visible identification indicia are displayed periodically or intermittently rather than continuously. The LCD screen or LED displays the indicia during the breath test process and photograph capture, then can be turned off or go into sleep mode, reducing overall energy consumption while maintaining identification reliability when needed.
Data Source
AI summary
A system for monitoring the sobriety of a user is provided. The system may include a testing device that generates a substance content signal. The testing device may further include a mouthpiece and a user identification device. The user identification device may generate user identification data in response to a user's breath and may transmit it from the testing device to a monitoring station. The testing device may further include at least one of an LCD screen or a light-emitting diode (“LED”) light. At least one of the LCD screen or the LED light may display at least one randomly generated visible identification indicia.