Aircraft Video Multiplexer Priority Switching
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Solution Overview
Problem
Existing video systems in aircraft cannot effectively combine multiple video data sources into a single display while ensuring essential information is prioritized and displayed reliably, as existing multiplexers do not distinguish between essential and non-essential video data.
Innovation Solution
A multiplexer with a switching device that prioritizes essential video data by ensuring all first video data is output before secondary video data, utilizing a video evaluation device to determine pixel output and prevent secondary data from interfering with primary data display, and storing secondary data for later output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple video data sources are combined into a single display device, then the number of display devices can be reduced and space can be saved, but it cannot be guaranteed that essential information will be displayed
Solution Approach 1:
The patent segments video data into different priority levels (first video data with higher priority and second video data with lower priority). The multiplexer processes these segmented data streams separately, ensuring that essential information (first video data) is always displayed while non-essential information (second video data) is displayed only when resources are available. This segmentation resolves the contradiction by maintaining reliability through priority-based display while enabling multiple data sources to share a single display device.
2Adaptability or versatility
If existing multiplexer devices are used to combine video data, then video data can be combined, but they do not distinguish between essential and non-essential data so essential data cannot be guaranteed
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different portions of video data. The multiplexer evaluates each video data stream and assigns it a priority level based on its importance. This allows the system to maintain the versatility of combining multiple video data sources while ensuring that essential data (with higher priority) is always displayed with guaranteed quality, resolving the contradiction between adaptability and reliability.
3Quantity of substance
If all video data is output simultaneously, then display content is comprehensive, but essential information may be lost or obscured
Solution Approach 1:
The patent implements preliminary action by evaluating and prioritizing video data before output. The multiplexer performs a preliminary evaluation of incoming video data streams, assigning priority levels before the actual display output. This preliminary prioritization ensures that essential information is identified and protected from being lost or obscured, while still allowing comprehensive display of all video data through the priority-based switching mechanism.
Data Source
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AI summary
The present invention relates to a multiplexer (100) comprising a first video data input (110) configured to receive first video data; a second video data input (120) configured to receive second video data; a video data output (130) configured to output the first video data and the second video data; and a switching device (140) arranged between the first and second video data inputs (110; 120) and the video data output (130), configured to ensure that all of the first video data are output by the video data output (130). The present invention further relates to a video system (10), an aircraft, and a method for outputting video data.