Wearable Recording System Memory Designation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional camcorders face memory limitations, requiring users to frequently transfer data to free up memory, which is inconvenient and inflexible, especially in situations where continuous recording is needed without supervision or access to a central office or wireless connection.
Innovation Solution
A surveillance apparatus with a camera functionally coupled to a local circular buffer that continuously records data, allows write protection of segments, and wirelessly transfers these segments to a remote memory, enabling continuous recording and editing without memory overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a circular buffer continuously records data, then recording duration is extended, but important data may be overwritten when memory is full
Solution Approach 1:
The system performs preliminary actions by designating certain memory segments as write-protected before they are overwritten. When important data is detected or user input is received, the system proactively marks those segments for protection, ensuring they will not be overwritten by the continuous recording buffer. This preliminary protection mechanism resolves the contradiction by preserving important data while maintaining continuous recording capability.
2Quantity of substance
If memory is frequently transferred to free up space, then memory availability is improved, but user convenience deteriorates
Solution Approach 1:
The memory is segmented into multiple regions, including a circular buffer for continuous recording and write-protected segments for important data. This segmentation allows the system to manage memory automatically without requiring user intervention for transfers. The buffered data can be offloaded to external storage or overwritten selectively without affecting protected segments, maintaining both memory availability and user convenience.
3Reliability
If write protection is applied to memory segments, then data preservation is improved, but memory capacity for recording deteriorates
Solution Approach 1:
The write protection status of memory segments is dynamic rather than static. Segments can be marked as write-protected when they contain important data, and this protection can be lifted when the data is transferred or no longer needed. This dynamic approach allows the system to preserve important data while maintaining flexibility in memory management, effectively resolving the contradiction between data preservation and available recording capacity.
Data Source
AI summary
A surveillance apparatus continuously records imaged data from a camera into a circular buffer in a local memory. When a record signal is received, the system records the video stream that was recorded before the record signal was received, and the video stream that is recorded after the record signal was received. The recorded segment is then write-protected, so that the surveillance apparatus does not overwrite the recorded segment. The recorded segment could then be sent to a remote memory via a wireless connection to free up local memory for future recording sessions.