HUD Image Error Detection With Projection Shutdown Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing control systems for head-up displays fail to effectively detect and counteract errors in image data that occur during transmission or processing, leading to reduced visibility of the background due to abnormal image displays.
Innovation Solution
A control system that includes an image processing circuit for mapping input image data, error detection circuits for identifying errors in the image data, and a control circuit that outputs a signal to turn off light projection when errors are detected, ensuring that errors are not propagated to the final display stage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If error detection is performed only at the first circuit device, then the detection complexity is reduced, but errors occurring in subsequent circuit devices or during communication cannot be detected
Solution Approach 1:
The error detection function is segmented and distributed across multiple circuit devices in the series connection. Each circuit device performs error detection on image data at its own stage, rather than having a single detection point. This segmentation ensures comprehensive error coverage throughout the entire image processing chain while maintaining manageable complexity at each individual device.
Solution Approach 2:
The system implements feedback mechanisms where error detection results from each circuit device are fed back to control subsequent processing stages. When errors are detected at any stage, the feedback signal triggers appropriate countermeasures such as halting processing or switching to backup pathways, ensuring that errors do not propagate to the final display.
2Reliability
If multiple error detection circuits are added to cover all stages, then error detection coverage is improved, but the device complexity increases
Solution Approach 1:
Each circuit device in the series connection is designed with multi-functionality, serving both as an image processing stage and an error detection point. This universal design allows the same hardware structure to perform multiple functions without requiring separate dedicated error detection circuits for each stage, thereby improving error coverage while controlling complexity.
Solution Approach 2:
The error detection function is merged with the image processing function in each circuit device. Rather than adding separate error detection circuits to each processing stage, the system combines both functions into unified circuit devices, reducing overall system complexity while maintaining comprehensive error detection coverage across all processing stages.
3Productivity
If image processing is performed in multiple sequential circuit devices, then processing capability is improved, but errors may occur in subsequent stages or during communication
Solution Approach 1:
Error detection is performed preliminarily at each circuit device stage before image data is passed to the next stage. This preliminary error detection prevents defective image data from propagating through subsequent processing stages, ensuring that only validated data continues through the processing chain and maintaining overall data integrity.
Solution Approach 2:
Error detection circuits act as intermediary elements between sequential image processing stages. These intermediary detection points validate image data before it transitions between processing stages, serving as a protective barrier that prevents error propagation while allowing the multi-stage processing capability to function effectively.
Data Source
AI summary
A control system includes: an image processing circuit; a first error detection circuit configured to perform first error detection on second image data; a first error code value generation circuit configured to generate a first error code value based on the second image data; a transmission interface circuit; a reception interface circuit; a second error code value generation circuit configured to generate a second error code value based on the second image data; a second error detection circuit configured to perform second error detection based on the first error code value and the second error code value; and a control circuit configured to output a control signal when an error is detected in at least one of the first error detection and the second error detection.