Modular Sensor Module for Unified Alcohol and Drug Detection
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Solution Overview
Problem
Current mind-altering substance testing systems, particularly for alcohol and drugs, lack a unified, accurate, and user-friendly method that can handle both substances without the need for separate units, and often expose sensors to damage or calibration issues.
Innovation Solution
A hand-held testing unit with a modular design featuring a display module and a releasable sensor module that houses sensors for both alcohol and drug detection, using electro-chemical fuel cell sensors and lateral flow sensors, respectively, with disposable cartridges for improved accuracy and protection from environmental damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate testing units are used for alcohol and drug detection, then each substance can be tested with specialized sensors, but the device complexity increases and multiple units are required
Solution Approach 1:
The patent combines alcohol and drug detection capabilities into a single integrated testing unit. The device includes both a fuel cell sensor for alcohol detection and a lateral flow sensor for drug detection, allowing both substances to be tested using one unified system rather than requiring separate dedicated units for each substance type.
Solution Approach 2:
The testing unit is designed with universal functionality to detect multiple mind-altering substances. The device can switch between different testing modes (alcohol breath testing and drug saliva testing) using a single platform, making it a multi-functional instrument that replaces the need for multiple specialized devices.
2Ease of operation
If sensors are exposed for easy access, then calibration and maintenance become simpler, but the sensors become vulnerable to damage and calibration compromise
Solution Approach 1:
The device is divided into separate modular components: a reusable main body and replaceable sensor cartridges. The sensor cartridge is removed from the main unit for calibration or replacement, allowing easy access without exposing the sensor to damage during normal operation. The sensor remains protected within its cartridge housing until deliberately removed for maintenance.
Solution Approach 2:
The sensor cartridge acts as an intermediary between the user and the sensitive sensor element. The cartridge provides a protective interface that allows the sensor to be easily replaced or calibrated by simply swapping cartridges, while the sensor itself remains protected within the cartridge structure during storage and transport.
3Device complexity
If a unified testing unit is used for both alcohol and drugs, then device complexity is reduced, but the sensor accuracy for each substance may be compromised
Solution Approach 1:
Each sensor type is optimized for its specific detection function within the unified device. The fuel cell sensor is specifically designed and calibrated for alcohol vapor detection, while the lateral flow sensor is optimized for drug molecule detection in saliva. Each sensor maintains its specialized quality and precision for its intended substance despite being part of a multi-functional system.
Solution Approach 2:
The device uses disposable sensor cartridges that are pre-calibrated and optimized for specific substance detection. These single-use cartridges ensure consistent measurement precision for each substance type while eliminating the need for complex recalibration procedures. The disposable nature guarantees that each cartridge provides accurate readings without degradation from previous use.
4Ease of manufacture
If non-disposable cartridges are used, then manufacturing cost is reduced, but the accuracy and reliability decrease due to contamination and degradation
Solution Approach 1:
The device employs disposable cartridges that are economically manufactured using cost-effective materials and processes. The low cost of each disposable cartridge allows for high-volume production without significant expense. Despite being inexpensive, each new cartridge guarantees fresh, uncontaminated sensing surfaces that provide accurate readings, eliminating the need for expensive cleaning and recalibration procedures associated with reusable cartridges.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate and efficient testing for both alcohol and drugs using the same unit, with protected sensors and disposable cartridges for enhanced reliability and ease of use, reducing the need for separate testing units and improving calibration integrity.
Implementation Method 1
The sensor module may include an electro-chemical fuel cell sensor blood alcohol content (BAC)
Implementation Method 2
the sensor module may include a lateral flow sensor
Data Source
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AI summary
The present invention relates to a mind-altering substance testing unit. The unit includes a display module for displaying an indication of a drug or alcohol. A sensor module is releasably fastened to the display module and includes sensors for sensing the drug and alcohol. The unit also includes a sample cartridge for receiving a sample and for releasably fastening to the sensor module so that the sensor module can sense the drug. Advantageously, the same testing unit can be used to sense alcohol and the drug avoiding the need for separate testing units.