Vehicle Display Controller Attentional Resource Adaptation
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Solution Overview
Problem
Existing vehicle display systems fail to adapt information presentation based on the attentional resources of the occupant, leading to decreased attention available for driving due to varying factors like traveling time, occupant status, and driving environment, which affects fatigue and visual recognition.
Innovation Solution
A display controller that acquires input data on the occupant's attentional resources and adjusts the display image mode to optimize visual recognition, using techniques such as changing text size, brightness, color saturation, and distance to reduce attentional resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If information is displayed with standard visual presentation, then information can be provided to the occupant, but attentional resources are consumed leading to reduced availability for driving operation
Solution Approach 1:
The patent applies parameter changes by modifying display characteristics (text size, brightness, color saturation, distance) based on the occupant's attentional resource level. When attentional resources are low, the system adjusts these parameters to reduce the cognitive load required for visual recognition, thereby maintaining information delivery while preserving more attentional resources for driving operation.
2Loss of information
If information with poor visual recognizability is displayed, then information can be presented, but the amount of attentional resources required increases
Solution Approach 1:
The system dynamically adjusts display parameters (text size, brightness, color saturation, distance) based on measured attentional resource levels. When attentional resources are depleted, the system enhances visual recognizability by modifying these parameters, making information easier to detect and process with fewer attentional resources.
Solution Approach 2:
The patent implements feedback by continuously monitoring occupant status information (traveling time, degree of fatigue, attentional resources) and using this feedback to adjust display parameters. This closed-loop system ensures that visual recognizability is optimized based on real-time occupant state, reducing the attentional resources required for information processing.
3Productivity
If display information is optimized for easy visual recognition, then attentional resources for driving operation increase, but display complexity increases
Solution Approach 1:
The patent manages display complexity by systematically adjusting a defined set of parameters (text size, brightness, color saturation, distance) based on attentional resource levels. This structured approach to parameter modification provides a controlled method to enhance visual recognition while maintaining manageable system complexity through predefined adjustment strategies.
Data Source
AI summary
A display controller (20) includes an information acquisition unit configured to obtain input data of attentional resources of an occupant of a mobile object such as traveling time, occupant status information, driving environment information or display image history and a display-image generation unit configured to generate, in a mode determined based on the input data, a display image to be displayed by a display device (10) provided for the mobile object. The mobile object is for instance a vehicle comprising a head-up display.