On-board Bus Screen Casting for Ethernet Bandwidth Reduction
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Solution Overview
Problem
The increasing number of on-board display screens in transportation means leads to bandwidth occupation and high costs when sharing content via on-board Ethernet for screen casting between displays.
Innovation Solution
A screen casting method that involves sending a request for screen casting between hardware systems connected by a bus, acquiring address information to identify a cache space, and sending screen casting data to that space for display, allowing for efficient content sharing without occupying Ethernet bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If screen casting is performed via on-board Ethernet, then screen sharing between display screens is enabled, but bandwidth is occupied and costs increase
Solution Approach 1:
The patent extracts the screen casting function from the Ethernet network path and relocates it to the on-board bus system. By obtaining cache space address information through the bus and directly transmitting screen casting data via the bus connection, the solution removes the dependency on Ethernet bandwidth for screen sharing, thereby reducing network bandwidth consumption while maintaining screen sharing capability
Solution Approach 2:
The patent introduces a cache space as an intermediary component in the bus system. The first hardware system obtains address information of cache space in the second hardware system through the bus, and uses this cache space as a temporary storage medium to facilitate efficient data transmission. This intermediary mechanism enables direct bus-based communication without occupying Ethernet bandwidth
2Adaptability or versatility
If screen casting data is transmitted via Ethernet, then content sharing is achieved, but transmission speed decreases
Solution Approach 1:
The patent extracts the data transmission path from the Ethernet network and redirects it through the on-board bus system. By obtaining cache space address information through the bus and directly sending screen casting data via the bus connection, the solution removes the bottleneck of Ethernet transmission and utilizes the faster on-board bus for data transfer, thereby improving transmission speed while maintaining content sharing functionality
Solution Approach 2:
The patent performs preliminary actions by first obtaining the address information of the cache space through the bus before actual data transmission. This preparatory step establishes the direct bus connection and cache space allocation in advance, ensuring that subsequent screen casting data can be transmitted at high speed without Ethernet bottlenecks
Data Source
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AI summary
The present application discloses a screen casting method, a hardware system, a computer-readable storage medium, a screen sharing system and a transportation means relating to the technical field of screen casting. The screen casting method comprises: sending a first request for requesting screen casting to a second hardware system by a first hardware system; wherein the first hardware system and the second hardware system are connected by a bus; acquiring address information fed back by the second hardware system based on the first request, the address information is used for identifying a cache space of the second hardware system; sending screen casting data of the first hardware system to the cache space via the bus based on the address information, the screen casting data is used for the second hardware system to display the corresponding screen casting content. The first hardware system and the second hardware system are connected by the bus, which has a larger bandwidth, and the transmission speed of the screen casting data is faster. This is beneficial for improving the smoothness of the display of the screen casting content and lowering the production cost without occupying the bandwidth of the on-board Ethernet.