Driver Alert Display Prioritization for Multiple Traffic Participants
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Solution Overview
Problem
Existing drive assistance systems fail to effectively manage multiple risky objects concurrently, leading to driver confusion and discomfort due to simultaneous display of multiple warning images.
Innovation Solution
A drive assistance system that selectively highlights a single traffic participant with the highest influence on safe travel, setting others as non-display objects, using sensors and image processing to determine and prioritize alert objects based on influence and driver recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple warning images are displayed concurrently for multiple risky objects, then the driver can be informed of all alert objects, but the driver becomes confused and uncomfortable
Solution Approach 1:
The patent segments the multiple alert objects into different display tiers: primary alert objects are displayed with high visibility, while secondary alert objects are displayed with lower visibility or suppressed. This segmentation allows the system to preserve information about multiple objects while preventing driver confusion by hierarchically organizing the display based on risk level and driver attention state.
Solution Approach 2:
The patent dynamically adjusts the number and visibility of displayed warning images based on real-time conditions including driver recognition state, vehicle speed, and road conditions. The system transitions between displaying one, two, or three warning images depending on the situation, making the display adaptive rather than static to balance information provision with driver comfort.
2Reliability
If the system displays warning images for all detected risky objects, then complete information is provided, but driver distraction and confusion increase
Solution Approach 1:
The patent applies different display qualities to different alert objects based on their risk characteristics. Primary alert objects receive high-visibility display with larger icons and more prominent positioning, while secondary objects receive reduced visibility or are suppressed entirely. This local differentiation of display quality ensures critical safety information is emphasized while minimizing distracting elements.
Solution Approach 2:
The system continuously monitors driver recognition of alert objects and uses this feedback to adjust subsequent display behavior. When the driver recognizes an alert object, the system reduces or removes that object's warning display, dynamically adapting to the driver's situational awareness to maintain safety information while reducing distraction.
3Ease of operation
If the system suppresses display of some alert objects to avoid confusion, then driver comfort is maintained, but information about less critical objects is lost
Solution Approach 1:
The patent employs periodic refresh and re-evaluation of the display state, continuously assessing whether secondary alert objects should be promoted to primary status or suppressed based on changing driving conditions. This periodic reassessment ensures that information about secondary objects is not permanently lost but is dynamically managed based on current priority needs.
Solution Approach 2:
The system prepares secondary alert objects for potential promotion to primary status by pre-calculating their risk levels and maintaining them in a ready state. When primary objects are removed from display after recognition, secondary objects can be quickly promoted without delay, ensuring information is preserved and readily available when needed.
Data Source
AI summary
A drive assistance system includes a display object configurator that sets, as a display object or a non-display object, each of traffic participants recognized as alert objects from among nearby traffic participants, and a display controller that performs highlight image processing for highlighting the presence of the display object. When a first traffic participant set as the display object and a second traffic participant set as the non-display object are present in the vicinity of the subject vehicle and recognized as alert objects with the recognition of the first traffic participant by the driver being detected while the highlight image processing is performed, the display object configurator compares the degrees of influence of the first and second traffic participants, sets, as the display object, one of the first and second traffic participants designated on the basis of a result of the comparison, and sets the other as the non-display object.