Vehicle HUD Caution Display Switching Beyond the Viewing Angle
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Solution Overview
Problem
Conventional vehicle-mounted display devices using head-up displays struggle to effectively display caution points outside the angle of view, leading to inconvenience for occupants as the content is not displayed until the caution point is within the view, potentially causing delays or safety issues.
Innovation Solution
A display control device and program that determine the existence and type of caution points and control the display of caution content as superimposed or non-superimposed content based on whether the caution point is within the head-up display's angle of view, ensuring notification to the occupant even if the point is not directly visible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If caution content is displayed only when the caution point is within the angle of view, then the display accuracy is improved, but the loss of information increases and the reliability deteriorates
Solution Approach 1:
The system performs preliminary detection of caution points outside the angle of view and prepares caution content in advance. When a caution point is detected beyond the current display range, the system pre-processes and queues the corresponding caution content, ready for immediate display once the point enters the angle of view, ensuring no information is lost during transitions.
Solution Approach 2:
The system introduces an intermediary mechanism that manages the transition between superimposed and non-superimposed display modes. This intermediary layer processes caution points at the boundary of the angle of view, smoothly transitioning their display state without abrupt information loss, and coordinates between the detection unit, angle of view determination unit, and display control unit.
2Ease of operation
If caution content is displayed as superimposed content only when the caution point is within the angle of view, then the ease of operation is improved, but the reliability deteriorates due to delayed notification
Solution Approach 1:
The system detects and identifies caution points outside the angle of view in advance, determining their types and preparing appropriate caution content before they enter the display range. This preliminary processing ensures that when the points enter the angle of view, notification occurs immediately without delay, enhancing safety while maintaining ease of operation.
Solution Approach 2:
The system dynamically adjusts the display mode of caution content based on the real-time position of caution points relative to the angle of view. Caution points inside the angle of view are displayed as superimposed content for ease of operation, while those outside are detected and prepared in advance, with smooth transitions between states ensuring both operational ease and notification reliability.
3Loss of information
If the system determines the type of caution point and displays associated caution content, then the loss of information is reduced, but the device complexity increases
Solution Approach 1:
The system applies local quality by determining the specific type of each caution point (e.g., pedestrian crossing, intersection, curve) and displaying customized caution content associated with each type. This targeted approach provides complete and relevant information for each specific caution scenario without unnecessarily complicating the overall system architecture.
Solution Approach 2:
The system changes parameters by categorizing caution points into different types based on their characteristics and displaying different caution content for each type. This parameter-based classification approach efficiently manages information completeness by adapting the display content to the specific nature of each caution point while maintaining a structured and manageable system complexity.
Data Source
AI summary
A display control device mounted on a vehicle: determines whether a caution point exists in front of a vehicle; determines whether the caution point is included in an angle of view of a head-up display mounted on the vehicle; displays a caution content as a superimposed content with the caution point as a superimposition target in response to the caution point being determined to be included in the angle of view; displays the caution content as a non-superimposed content with no superimposition target in response to the caution point being determined to be not included in the angle of view; determines a type of the caution point; displays the caution content associated with the determined type of the caution point.