Adaptive In-Car Sound Control for Driver Perceptual Load
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Solution Overview
Problem
Conventional in-car sound systems impose excessive perceptual load on drivers, particularly in conditions requiring high attention, leading to distraction and reduced safety due to the need to visually and aurally process information simultaneously.
Innovation Solution
A sound control system that utilizes image capturing and deep learning models to analyze a driver's line of sight and environmental risks, adjusting sound output based on risk levels and relevance to driving to minimize perceptual load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sound contents are reproduced continuously to provide safety information, then the amount of information provided to the driver increases, but the perceptual load on the driver becomes excessive
Solution Approach 1:
The system dynamically changes sound output parameters (volume, content, frequency) based on the driver's line of sight position and road condition parameters. When the driver's attention is detected to be focused on the road, the system reduces or stops sound output. When the driver's attention shifts away, the system increases sound output to provide safety information, thus adapting information provision to actual driver state without causing excessive perceptual load
Solution Approach 2:
The sound control system transitions from static continuous sound reproduction to dynamic adaptive sound control. The system continuously monitors driver line of sight and road conditions, and adjusts sound output in real-time based on these changing parameters, making the information provision responsive to actual driving context and driver attention state
2Reliability
If sound output is increased to ensure safety information is conveyed, then the reliability of safety information transmission improves, but the driver's attention can be distracted affecting safety
Solution Approach 1:
The system uses driver line of sight detection as feedback to control sound output. The camera-based line of sight detection system provides real-time feedback on driver attention state, and the sound control unit adjusts sound output based on this feedback. This closed-loop control ensures safety information is transmitted reliably when the driver is not looking at the road, while avoiding distraction when the driver is already paying attention
Solution Approach 2:
The system provides safety information in advance before critical situations arise. By monitoring driver line of sight position and road conditions proactively, the system can issue warnings or provide information before the driver needs to make critical decisions, ensuring reliable safety information transmission without creating sudden distractions during critical moments
Data Source
AI summary
An acquiring unit of a sound control device acquires information indicating a risk corresponding to a position of a vehicle from data in which information indicating a risk during driving originated in scenery while traveling and a position are associated with each other. An output-sound control unit performs control of a sound to be output for a driver of the vehicle according to the information acquired by the acquiring unit.