Network Camera Media Sample Redundancy Management
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Solution Overview
Problem
In a system of interconnected network cameras, there is a challenge in maximizing recorded video data storage while ensuring reliable access and security, especially due to limited memory space and the risk of information loss when cameras or storage units are disconnected or modified.
Innovation Solution
A method for managing media samples involves determining the system topology and selecting a subset of network cameras for redundant storage, ensuring that media samples are duplicated across cameras to maintain accessibility even if one camera is removed, while avoiding unnecessary duplication and optimizing memory usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If media samples are duplicated across all network cameras, then reliability is improved, but storage memory usage increases excessively
Solution Approach 1:
The patent applies local quality by selecting specific network cameras based on their topology relationships with the source camera. Instead of uniform duplication across all cameras, copies are strategically placed in cameras that are topologically distant or belong to different clusters, optimizing redundancy while conserving storage resources.
Solution Approach 2:
The patent implements selective copying of media samples from a source camera to a subset of target cameras. The copying process is governed by topology-based selection criteria that determine which cameras should receive copies, balancing reliability requirements with storage efficiency.
2Reliability
If media samples are stored in multiple locations, then security against information loss is improved, but device complexity increases
Solution Approach 1:
The patent enables network cameras to autonomously determine their role in the redundancy system based on topology analysis. Each camera can independently assess its position in the network and decide whether to store copies, reducing the need for centralized management complexity while maintaining security.
Solution Approach 2:
The patent performs preliminary topology analysis and camera selection before media samples are lost or needed. By pre-determining which cameras should store copies based on system topology, the complexity of real-time management is reduced, and reliability is ensured in advance.
3Reliability
If copies are sent to all network cameras, then accessibility is improved, but memory space is wasted
Solution Approach 1:
The patent applies partial action by sending copies only to a subset of network cameras rather than all cameras. The subset is determined by topology criteria that ensure sufficient accessibility while avoiding the excessive action of universal duplication that would waste memory space.
Data Source
AI summary
The present invention relates to a method for managing copies of media samples recorded by a given network camera of a system comprising a plurality of interconnected network cameras, the method comprising the following steps:obtaining a topology of the system as a set of relationships existing between the network cameras of the plurality, based on media samples recorded by these network cameras;selecting a subset of network cameras from the plurality, based on the determined topology and a predetermined level of redundancy to achieve, for the storage of the copies of the media samples recorded by the given network camera, in storage units of network cameras of the subset.