Attention Calling Device with Adaptive Conspicuity Control
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Solution Overview
Problem
Existing vehicle attention systems do not adaptively adjust attention calling based on the driver's load reduction by drive assisting functions, leading to inefficient attention distribution.
Innovation Solution
An attention calling device that recognizes a target object's position and sets an attention load reduction region based on the drive assisting function, displaying a virtual image with lower conspicuity within this region to prioritize attention outside the load reduction area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If uniform attention calling is used for all target objects, then the system is simple to implement, but the driver's attention load is not appropriately reduced when drive assisting functions are operating
Solution Approach 1:
The system applies different display attributes to marking images based on their spatial location relative to the attention load reduction region. Objects inside the region receive different visual treatment (e.g., reduced conspicuity, different colors) compared to objects outside the region, creating local quality variations that reflect the drive assisting function's monitoring capabilities
2Reliability
If the system adjusts display attributes according to drive assisting function operation, then attention distribution becomes more appropriate, but the device complexity increases
Solution Approach 1:
The marking image display system serves multiple functions: it identifies target objects, indicates their spatial position relative to the vehicle, communicates drive assisting function status, and guides driver attention allocation. By making the display system multi-functional, the patent avoids adding separate systems for each function, thereby managing complexity while achieving appropriate attention distribution
3Area of stationary object
If the system monitors multiple regions with drive assisting functions, then coverage is improved, but the attention calling becomes less focused
Solution Approach 1:
By creating a distinct attention load reduction region with specific display characteristics, the system maintains focus clarity despite monitoring multiple areas. The regional differentiation allows the driver to understand which areas require active attention versus those monitored by automated systems, preventing attention dilution across the entire field of view
Data Source
AI summary
An attention calling device includes: a processor configured to execute an attention load reduction region setting process that sets an attention load reduction region that is a region monitored by a drive assisting device provided in a subject vehicle according to a drive assisting function exerted by operating the drive assisting device, and a display control process that performs an attention calling process by displaying a virtual image for the attention load reduction region in such a manner that conspicuity of the virtual image is lower than a region other than the attention load reduction region based on a position of the attention load reduction region recognized by a target object position recognizing process during operation of the drive assisting device.