Bandwidth Management Device for Adaptive Video Streaming
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Solution Overview
Problem
Current bandwidth management systems for video streaming in monitoring systems fail to optimize bandwidth usage effectively, as criticality factors are only considered at the transport layer, leading to inefficient use of bandwidth and difficulties in adapting to changing priorities, resulting in suboptimal video quality and real-time transmission issues.
Innovation Solution
A bandwidth management device and method that receive attribute information from central management devices, including criticality and activity factors, to dynamically assign bandwidth to media streams, ensuring optimal allocation based on importance and activity levels, thereby optimizing bandwidth usage and adapting to changing priorities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If criticality factor is considered only in transport layer, then QoS priority can be provided for critical video streaming, but bandwidth usage optimization is not realized and it is difficult to change critical level adaptively
Solution Approach 1:
The patent introduces dynamic bandwidth assignment that adapts to changing activity factors in real-time. The system continuously monitors activity factors from multiple video devices and dynamically adjusts bandwidth allocation, transitioning from static transport layer QoS to dynamic application layer bandwidth management that can adapt to changing conditions.
Solution Approach 2:
The patent adds a new dimension of bandwidth management by introducing activity factor as an additional parameter alongside criticality factor. This creates a two-dimensional allocation model (criticality × activity) that enables more flexible and adaptive bandwidth assignment compared to the traditional single-dimension transport layer approach.
2Quantity of substance
If multiple video streamings are transmitted through a shared link with limited bandwidth, then bandwidth sharing is achieved, but video quality deteriorates and real-time monitoring cannot be realized
Solution Approach 1:
The patent applies local quality by assigning different bandwidth resources to different video streams based on their specific criticality and activity characteristics. Instead of uniform bandwidth sharing, the system provides differentiated quality levels tailored to each stream's importance and current activity state, ensuring critical streams maintain high quality while less critical streams use remaining bandwidth.
Solution Approach 2:
The patent changes the bandwidth allocation parameter dynamically based on activity factors and criticality levels. The system adjusts bandwidth assignment in response to changing conditions, allowing video quality to be optimized for each stream according to its current needs rather than using fixed bandwidth sharing ratios.
3Reliability
If bandwidth is assigned statically based on criticality factor, then priority differentiation is achieved, but bandwidth usage optimization is not realized
Solution Approach 1:
The patent implements feedback mechanisms by continuously monitoring activity factors from video devices and using this information to adjust bandwidth allocation. The system receives feedback about current activity levels and critically adjusts bandwidth assignment in response, creating a closed-loop control system that optimizes bandwidth usage based on actual conditions rather than static pre-assignment.
Solution Approach 2:
The patent transforms static bandwidth assignment into a dynamic system that responds to changing activity factors in real-time. The bandwidth allocation is continuously adjusted based on current activity levels and criticality ratings, enabling the system to optimize bandwidth usage efficiency while maintaining priority differentiation for critical streams.
Data Source
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AI summary
The embodiments of the present invention provide a bandwidth management device, central management device and method of bandwidth management. The bandwidth management device includes: a first receiver, configured to receive attribute information of media devices; wherein a criticality factor of media device is included in each piece of the attribute information; a second reveiver, configured to receive media streaming from the media devices; a bandwidth assigner, configured to assign bandwidth for each of media streamings based on the criticality factor. Through the embodiments of the present invention, optimization of bandwidth usage is realized and it is easy to change the critical level of video streaming adaptively.