Embedding Safety Stats in Video Frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for transmitting functional safety statistics in systems, such as automotive systems, face limitations due to slow data transfer rates and synchronization challenges with existing interfaces, making it difficult to provide real-time and robust data to host processors.
Innovation Solution
The method involves encoding functional safety statistics into video frames using a display sub-system, allowing these statistics to be transmitted alongside video data, which are then extracted by the host processor, utilizing video format conversions to ensure robustness against data loss and errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If functional safety statistics are transmitted via existing interfaces, then data transfer can be achieved, but data transfer rate is slow and synchronization challenges occur
Solution Approach 1:
The patent merges functional safety statistics transmission with the existing video data transmission pathway by embedding the statistics within video frames. This combines two separate data streams (video and safety statistics) into a single transmission channel, eliminating the need for separate interfaces and improving both transfer rate and synchronization reliability.
Solution Approach 2:
The video transmission system is made multi-functional by enabling it to carry both video data and functional safety statistics simultaneously. This universal approach allows the same interface to serve multiple purposes, increasing data transfer efficiency and eliminating synchronization issues between separate channels.
2Productivity
If additional interfaces are added for transmitting functional safety statistics, then data transfer capability is improved, but device complexity increases
Solution Approach 1:
The existing video interface is made universal to handle both video data and functional safety statistics, eliminating the need for additional dedicated interfaces. This maintains high data transfer capability while avoiding increased device complexity.
Solution Approach 2:
The patent combines the functionality of separate video and safety statistics interfaces into a single unified transmission channel, reducing the total number of interfaces required while maintaining full data transfer capability for both types of data.
3Loss of time
If functional safety statistics are embedded in video frames, then real-time transmission is achieved, but data robustness against format conversion may be compromised
Solution Approach 1:
The patent applies local quality by treating the functional safety statistics portion of the video frame differently from the video data portion. The statistics are encoded with special considerations for robustness against format conversions, while the video data maintains its standard encoding, allowing each part to be optimized for its specific requirements.
4Reliability
If functional safety statistics are transmitted separately from video data, then data integrity is maintained, but transmission efficiency decreases
Solution Approach 1:
The patent combines separate transmissions of video data and functional safety statistics into a single unified transmission stream. This merging maintains data integrity through proper encoding and extraction mechanisms while dramatically improving transmission efficiency by utilizing shared bandwidth and synchronization infrastructure.
Data Source
AI summary
Systems and methods are provided for transmitting functional safety statistics within a system. A video source produces a video data stream. A functional safety system driver accumulates functional safety statistics from at least one system and writes the functional safety statistics onto an associated system memory. A display sub-system driver writes a frame of the video data stream to the system memory. The display sub-system driver formats the functional safety statistics as video data and appends the functional safety statistics to a portion of the frame of video that is reserved for the functional safety statistics. A display sub-system transmits the frame of the video data stream to a host processor, which extracts the functional safety statistics from the video frame.