Vehicle Display Error Notification via Dual Code Verification
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Solution Overview
Problem
Conventional vehicle display apparatuses lack means to notify users of errors in image data due to external noise, causing confusion and anxiety as users cannot distinguish between critical events and display errors caused by noise.
Innovation Solution
A vehicle display apparatus with a light-emitting element unit and sound output unit, featuring error-detection codes generated by both the control unit and display drive unit, which determine mismatches and provide notification to the user through light or sound when image reliability degrades, ensuring clear communication of display issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If error detection codes are implemented to detect image data errors, then reliability of image display is improved, but device complexity increases due to additional error-detection code generating units and match determination logic
Solution Approach 1:
The control unit generates a first error-detection code in advance based on image data before transmission to the display drive unit. This preliminary error detection preparation enables quick verification of image data integrity without requiring complex post-processing or retransmission protocols, thus improving reliability while managing system complexity
Solution Approach 2:
The display drive unit generates a second error-detection code from received image data and transmits it back to the control unit for comparison with the first error-detection code. This feedback mechanism creates a closed-loop error detection system that automatically verifies image data integrity, improving reliability through continuous monitoring without requiring manual intervention
2Loss of information
If notification means are added to alert users of display errors, then information completeness is improved, but device complexity increases due to additional light-emitting element units and sound output units
Solution Approach 1:
The notification function is merged with the existing display system by utilizing light-emitting element units that are already part of the display apparatus. Instead of adding separate notification devices, the patent integrates error notification into the existing visual display infrastructure, thereby providing error information without significantly increasing device complexity
Solution Approach 2:
The light-emitting element units serve dual purposes: displaying normal image information and notifying users of display errors. This multi-functionality allows the same hardware components to perform multiple roles, providing comprehensive error notification capabilities while avoiding the need for dedicated notification hardware, thus managing device complexity effectively
3Loss of information
If error detection and notification systems are implemented, then user awareness of display status is improved, but ease of operation deteriorates due to additional notification information that may confuse users
Solution Approach 1:
The notification system provides differentiated information based on the specific error condition detected. Instead of uniform notifications, the system tailors the notification content and method to the particular type of display error, allowing users to understand the specific nature of the issue without being overwhelmed by generic or excessive information, thus maintaining ease of operation
Solution Approach 2:
The system uses different light emission states (such as different colors, intensities, or patterns of the light-emitting element units) to indicate different error conditions. This visual differentiation allows users to quickly comprehend the type and severity of display errors through intuitive color or pattern changes, reducing cognitive load and maintaining ease of operation despite increased information provision
Data Source
AI summary
A vehicle display apparatus has a display and a control unit. The control unit detects whether or not an error recognizable by users of the vehicle has occurred in an image on the display on the basis of the result of matching between a first error detection code, which is generated on the basis of image data transmitted to a display drive unit, and a second error detection code, which is generated on the basis of the image data received by the display drive unit, to determine whether notification is required or not, and provides notification on deterioration in the reliability of the image on the display by controlling light-emitting elements and sound output units provided on the vehicle display apparatus or by way of a superordinate device.