Smart Contact Lens Warnings for Dozing and Look-Away Drivers
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Solution Overview
Problem
Existing vehicle warning systems fail to ensure that drivers visually recognize warnings when they are dozing or looking away, leading to potential safety risks.
Innovation Solution
A vehicle warning system that includes a smart contact lens capable of determining a driver's state through image capture and displaying warnings when the driver is dozing or looking away, with adjustable warning content based on the driver's arousal level, ensuring visual recognition even with closed eyelids or diverted gaze.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a head-up display is used to show warnings to drivers, then the warning information can be displayed, but the driver may not visually recognize the warning when dozing or looking away
Solution Approach 1:
The patent transitions the warning display from the traditional head-up display dimension (dashboard/windshield area) to a new dimension by embedding the display function directly in the smart contact lens on the driver's eyeball. This dimensional change ensures the warning is displayed at the source of visual perception, making it impossible for the driver to miss the warning even when dozing or looking away, as the stimulus is delivered directly to the eye.
2Reliability
If the smart contact lens displays warnings frequently, then driver recognition is ensured, but the driver may feel annoyed due to false alarms
Solution Approach 1:
The system incorporates feedback mechanisms by using cameras to continuously monitor the driver's eye state and arousal level. The determination unit processes this feedback information to accurately assess whether the driver is dozing or looking away, and adjusts the warning display accordingly. This feedback loop reduces false alarms by ensuring warnings are only displayed when actually needed, thereby reducing driver annoyance while maintaining high warning accuracy.
Solution Approach 2:
The system changes the parameter of warning display based on the driver's arousal level. When the driver's arousal level is low (indicating dozing), the smart contact lens displays warnings. When the arousal level is normal, no warnings are displayed. This dynamic parameter adjustment ensures warnings are only shown when necessary, preventing driver annoyance from false alarms while maintaining reliable warning delivery.
3Measurement precision
If the system monitors driver state continuously, then detection accuracy is improved, but system complexity increases
Solution Approach 1:
The patent merges multiple functions into the smart contact lens: the display function is integrated directly into the contact lens structure, and the camera system is positioned to work in conjunction with the lens. This merging reduces overall system complexity by eliminating separate display components and simplifying the structural arrangement, while maintaining high measurement precision through continuous monitoring of the driver's eye state.
Data Source
AI summary
A determination unit that determines whether a driver of a vehicle is dozing or looking away based on a state of the driver, a smart contact lens worn on an eyeball of the driver, and a display control unit that causes the smart contact lens to display a warning when the determination unit determines that the driver is dozing or looking away are provided.