Monitor Data Storage System with Event Intensity-Based Frame Retention
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Solution Overview
Problem
The limited storage capacity of monitoring systems often requires the deletion of old monitor data, making it difficult to preserve valuable image data for event reconstruction.
Innovation Solution
A storage system and method that utilize a monitor sensor, event marking circuit, and frame processing circuit to determine event intensities and preserve relevant frames while deleting less important ones, optimizing storage capacity and legal effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If old monitor data is deleted directly to save storage capacity, then storage capacity is improved, but the ability to restore event sites is worsened
Solution Approach 1:
The patent applies local quality by differentiating the treatment of monitor frames based on their event intensity characteristics. Frames are categorized into different groups (first group with lower event intensity, second group with higher event intensity) and handled differently - the first group is deleted after a period while the second group is preserved longer. This localized differentiation allows selective retention that balances storage capacity with event restoration capability.
Solution Approach 2:
The patent implements dynamics by establishing a dynamic frame deletion mechanism where the retention period of monitor frames is not fixed but varies based on event intensity. The system continuously monitors event intensity and adjusts the deletion timing accordingly - frames with higher event intensity are retained longer than frames with lower event intensity. This dynamic approach optimizes the balance between storage capacity and evidential value.
2Reliability
If all original frames are stored completely, then event restoration capability is improved, but storage capacity is worsened
Solution Approach 1:
The patent applies the extraction principle by separating monitor frames into different groups based on event intensity and extracting only the necessary portions for long-term retention. Specifically, only the second group of frames (with higher event intensity) is retained for extended periods, while the first group (with lower event intensity) is deleted after a shorter period. This extraction approach reduces the total storage requirement while maintaining the ability to restore significant events.
Solution Approach 2:
The patent utilizes parameter changes by modifying the retention time parameter based on event intensity characteristics. The system changes the retention parameter dynamically - assigning longer retention times to frames with higher event intensity and shorter retention times to frames with lower event intensity. This parameter adjustment allows the system to store only the necessary frames for the required duration, optimizing storage capacity while preserving event restoration capability for critical events.
3Reliability
If monitor data is preserved for a long time, then event restoration capability is improved, but storage capacity consumption is worsened
Solution Approach 1:
The patent implements a dynamic retention strategy where the storage duration of monitor frames is not uniform but varies based on event intensity. The system continuously evaluates event intensity and adjusts retention policies accordingly - frames with higher event intensity receive extended retention, while frames with lower event intensity are deleted after a shorter period. This dynamic approach ensures that storage capacity is consumed proportionally to the evidential value of each frame.
Solution Approach 2:
The patent changes the time parameter of data retention based on event intensity characteristics. By introducing event intensity as a variable factor, the system adjusts the retention time parameter dynamically - longer retention for high-intensity events, shorter retention for low-intensity events. This parameter change enables the system to maintain event restoration capability for critical events while reducing overall storage capacity consumption through selective deletion of less important frames.
Data Source
AI summary
A storage system of original frames of monitor data and a storage method thereof are provided. The storage system includes a monitor sensor, an event marking circuit, a data storage circuit and a frame processing circuit. The monitor sensor provides a plurality of original frames. The event marking circuit has an input terminal coupling to the monitor sensor and an output terminal, and is used for determining an event intensity of a corresponding one of the original frames and marks the event intensity on the corresponding original frame. The data storage circuit is coupled to the output terminal and is used for completely storing the original frames. The frame processing circuit is coupled to the data storage circuit and is used for checking whether the original frames within the data storage circuit are deleted according to the event intensities.