Tunnel Fatigue Arousal Section Layout Using Driver Response Models
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Solution Overview
Problem
Existing methods for arranging fatigue arousal sections in long tunnels rely on empirical data and simple simulations, failing to accurately simulate the impact of tunnel lighting conditions, leading to ineffective arousal of drivers and increased safety risks.
Innovation Solution
A method and device for determining colors, luminance, and spacing of fatigue arousal sections based on scientifically derived arousal duration models, using heart rate variability data to ensure effective arousal at different vehicle speeds, ensuring safe and comfortable driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If empirical data and simple simulation scenarios are used to arrange fatigue arousal sections, then the arrangement process is simplified, but the accuracy of simulating actual tunnel lighting impact on driving safety deteriorates
Solution Approach 1:
The patent transforms the arrangement methodology by changing from empirical parameters to scientifically derived parameters. It establishes quantitative relationships between lighting parameters (luminance, color temperature), vehicle speed, and arousal duration through mathematical models, enabling precise control of stimulation effects while maintaining systematic complexity management.
Solution Approach 2:
The patent replaces simple simulation scenarios with a comprehensive mathematical modeling system that incorporates physiological responses (heart rate variability), lighting physics, and driver behavior. This substitution uses cross-disciplinary theories to create a more accurate predictive model of driver arousal without requiring complex physical simulations.
2Ease of manufacture
If existing empirical methods are used to arrange fatigue arousal sections, then implementation is easier, but the effectiveness of arousing drivers from fatigue deteriorates
Solution Approach 1:
The patent performs preliminary calculations of optimal lighting parameters, luminance levels, color temperatures, and section spacing before implementation. By pre-determining these parameters based on tunnel characteristics and expected traffic conditions, the system ensures effective driver arousal while simplifying the actual implementation process through standardized design procedures.
Solution Approach 2:
The patent incorporates feedback mechanisms by using arousal duration models that predict driver response to lighting stimuli. The system adjusts lighting parameters based on predicted arousal effectiveness, creating a closed-loop design approach that ensures reliability while maintaining implementation feasibility through iterative optimization.
3Productivity
If fatigue arousal sections are arranged without scientific calculation, then deployment is faster, but the meeting of drivers' physiological and psychological needs deteriorates
Solution Approach 1:
The patent creates a universal calculation framework that can be applied to various tunnel types and conditions. The methodology integrates multiple functions including physiological response prediction, lighting design optimization, and spatial arrangement planning into a single systematic approach, enabling fast deployment across different scenarios while adapting to specific driver needs through parameter adjustment.
Data Source
AI summary
A method and device for arranging a fatigue arousal section in a tunnel, as well as a road tunnel. The method includes: determining a plurality of colors and luminance of fatigue arousal section; based on a plurality of samples, generating a plurality of arousal duration models in which the drivers' arousal duration changes with stimulus quantity at multiple different vehicle speeds, wherein the samples include arousal durations of different drivers under different stimulus quantities at the plurality of colors and luminance; determining length and spacing of fatigue arousal section to be arranged according to a specified speed of the tunnel, using the arousal duration models; and arranging one or more fatigue arousal sections in the tunnel based on the determined length and spacing of the fatigue arousal section.