AR-HUD Display Timing Adaptation for Driver Recognition Load
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Solution Overview
Problem
Existing HUD systems fail to effectively provide drivers with critical collision warning information in a form that minimizes recognition load, particularly by not adjusting information provision timing and format according to the driving environment and situation.
Innovation Solution
An augmented reality head-up display (AR-HUD) system that collects driving environment and situation information, obstacle data, and the driver's line of sight, using sensors and a database to determine optimal information provision forms and timings based on analysis of recognition ease, understanding, and safe driving performance, adjusting the display accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an AR-HUD system displays simple information like vehicle speed on the windshield, then the system structure remains simple, but the driver cannot receive critical collision warning information effectively
Solution Approach 1:
The patent combines multiple information types (vehicle speed, collision warnings, obstacle information) into a single AR-HUD display system integrated with the windshield, merging the display function with the existing vehicle structure to enhance reliability without proportionally increasing complexity
Solution Approach 2:
The system dynamically adjusts the display of collision warning information based on the driver's line of sight and driving conditions, making the information provision adaptive rather than static, which improves warning effectiveness while maintaining reasonable system complexity
2Loss of information
If the HUD system provides comprehensive safe driving information, then the information completeness improves, but the driver's recognition load increases
Solution Approach 1:
The patent applies local quality by positioning collision warning information specifically at the driver's line of sight on the windshield, making critical information appear exactly where the driver is looking, thereby maintaining information completeness while minimizing recognition load through strategic placement
Solution Approach 2:
The system segments information by type and priority, displaying only relevant collision warning information when needed rather than continuously showing all possible data, which reduces recognition load while maintaining completeness of critical safety information
3Adaptability or versatility
If the HUD system displays information according to driver's line of sight, then the information relevance improves, but the system complexity increases due to additional sensors and processing
Solution Approach 1:
The patent makes the existing windshield serve multiple functions: as a structural component, as the display medium for AR-HUD, and as the surface where collision warnings are projected, thereby achieving context-adaptive information display without adding significant system complexity
Solution Approach 2:
The system uses the windshield as an intermediary medium between the information processing unit and the driver's eyes, allowing adaptive information provision based on line of sight while leveraging the existing windshield structure to minimize additional complexity
4Reliability
If the HUD system provides warning information without adjusting provision timing, then the system operation remains simple, but the safe driving performance deteriorates due to inappropriate information timing
Solution Approach 1:
The patent implements feedback by continuously monitoring driving conditions and driver line of sight, then adjusting the timing and provision of collision warning information based on this feedback, which improves safe driving performance through context-appropriate information timing
Solution Approach 2:
The system performs preliminary action by preparing and pre-positioning collision warning information based on predicted driver line of sight and upcoming driving conditions, so that information is displayed at the optimal moment before the driver needs to react, enhancing safe driving performance
Data Source
AI summary
Provided are an apparatus and method for providing safe driving information. The method includes building a database including group information obtained by grouping driving environment information and driving situation information according to attributes of the driving environment information and the driving situation information, and provision forms and provision timings of safe driving information determined according to conditions in groups; collecting driving environment information, driving situation information, obstacle information, and information on a driver's line of sight in real time; determining a provision form and a provision timing of safe driving information based on the collected information and the database; and providing the safe driving information according to the determined provision form and timing.