Display Image Data CRC Checking for Vehicle Error Indication
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Solution Overview
Problem
There is a need for a method to inspect and prevent errors in critical data displayed on vehicle displays, which can impact safety, as existing technologies do not effectively check for errors in important regions of the information displayed.
Innovation Solution
A method involving cyclic redundancy check (CRC) data is used to inspect image data, where CRC data is generated and compared to detect errors, and if errors are found, they are displayed on the screen or the data is retransmitted to ensure accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image data is transmitted without error checking, then data transmission speed is maintained, but data accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by generating CRC data at the data processing device before transmission and performing CRC checking at the display driving device upon reception. This advance preparation of error detection mechanisms allows for rapid verification without requiring complex retransmission protocols, thus maintaining transmission speed while ensuring data accuracy through pre-configured error checking capabilities.
2Measurement precision
If CRC checking is performed on all image data, then data accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent segments the image data transmission into distinct components: original image data, separately generated CRC data, and error indication signals. This segmentation allows the system to perform targeted CRC checking only where needed (at the display driving device) rather than requiring complex checking mechanisms throughout the entire system, thereby reducing overall processing complexity while maintaining comprehensive error detection capability.
3Reliability
If error detection mechanisms are added, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent introduces CRC data as an intermediary element that mediates between the transmitted image data and the error detection process. The CRC data serves as a compact verification companion that can be easily generated and checked without adding complex error detection hardware or software. This intermediary approach enhances reliability through systematic error checking while keeping the added complexity minimal and manageable.
Data Source
AI summary
A display driving device, a data transmission method, and an image data inspection method are disclosed. According to at least one of various embodiments, a method of inspecting image data in a display driving device can include receiving data for one frame including image data and first cyclic redundancy check (CRC) data for the image data from a display processing device; generating second CRC data for the image data of the frame; and controlling to display an occurrence of an error through a display screen when it is determined that the error has occurred in the image data of the frame based on a comparison result of the first CRC data and the second CRC data.