Driver Breath Alcohol Sensor Validation Using Touch And Image Checks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current alcohol detection systems in vehicles lack effectiveness in confirming whether the detected alcohol is from the occupant's breath, as they do not ensure that the detection is performed by the occupant actively holding the sensor, leading to potential false readings.
Innovation Solution
An alcohol detection apparatus comprising an image sensor, a touch sensor, and a processor that generates a captured image, detects touch and alcohol presence, and determines the effectiveness of the alcohol detection based on the occupant touching the touch sensor and holding the alcohol sensor, ensuring the reliability of the alcohol detection by verifying the occupant's active involvement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alcohol detection is performed without verifying occupant involvement, then detection speed is improved, but reliability deteriorates due to potential false readings
Solution Approach 1:
The system performs preliminary verification actions before final alcohol detection confirmation. The image sensor captures images to verify the occupant is holding the alcohol sensor, and the touch sensor detects whether the occupant is touching the steering wheel, before accepting the alcohol detection result. This preliminary verification ensures reliability without significantly increasing complexity.
Solution Approach 2:
The system introduces intermediary verification mechanisms (image sensor and touch sensor) that mediate between the alcohol sensor and the final detection result. These intermediaries provide additional verification layers to confirm occupant involvement, thereby improving reliability while maintaining a manageable detection process through automated integration.
2Reliability
If multiple verification processes are implemented, then reliability is improved, but detection time increases
Solution Approach 1:
The verification processes operate continuously and concurrently rather than sequentially. The image sensor continuously captures images, the touch sensor continuously monitors steering wheel contact, and the alcohol sensor continuously detects alcohol levels. This continuous operation allows multiple verifications to occur simultaneously, improving reliability without significantly increasing detection time.
Solution Approach 2:
The system replaces manual verification processes with automated sensor-based verification. Instead of requiring manual confirmation of occupant involvement, the system uses image sensors and touch sensors to automatically verify whether the occupant is holding the alcohol sensor and touching the steering wheel, reducing the time required for verification while maintaining high reliability.
Data Source
AI summary
An alcohol detection apparatus includes an image sensor, a touch sensor, an alcohol sensor, and a processor. The image sensor generates a captured image by performing imaging of an occupant in a driver's seat of a vehicle. The alcohol sensor performs a detection of an alcohol component in breath of the occupant. Based on the captured image, the processor performs a first process of confirming whether the occupant is touching the touch sensor, and performs a second process of confirming whether the occupant is holding the alcohol sensor. The processor performs a determination process of determining that a result of the detection obtainable by the alcohol sensor is effective when conditions are satisfied. The conditions include that the occupant is touching the touch sensor in the first process and that the occupant is holding the alcohol sensor in the second process.