Detachable Image Analysis Device Selective Data Deletion
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Solution Overview
Problem
Existing data storage solutions for image analysis in detachable devices often result in the unintended deletion of necessary data when the device is removed or reattached, as they lack mechanisms to differentiate between data to be preserved and unnecessary data.
Innovation Solution
A detachable device with an obtainment unit for image data, a processing unit for analysis, a storage unit for results, and a deleting unit that deletes unnecessary data based on designated information when power is supplied, ensuring that only specific data is preserved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If initialization is performed when a card is inserted (as disclosed in Japanese Patent Laid-Open No. H6-14229), then the storage is cleared, but necessary data is deleted along with unnecessary data
Solution Approach 1:
The patent divides storage space into multiple areas with different protection levels: a first area for image data and a second area for analysis result data. This segmentation allows selective deletion of only the second area while preserving the first area, resolving the contradiction between clearing storage and preserving necessary data.
Solution Approach 2:
Different regions of the storage device are assigned different qualities or properties regarding data protection. The first area is designated as protected from deletion, while the second area is designated as deletable. This local differentiation enables selective data preservation and deletion based on the specific needs of each data type.
2Productivity
If image analysis results are stored in the detachable device, then the device can execute processing, but the data occupies storage space that should be available for other uses
Solution Approach 1:
The patent implements automatic deletion of analysis result data from the second area after the image capturing apparatus reads and utilizes this data. This discarding mechanism recovers storage space for future use while maintaining the productivity benefit of having analysis capabilities during operation.
Solution Approach 2:
The storage management operates periodically: analysis results are written to the second area, read by the image capturing apparatus, and then deleted. This periodic cycle of writing, reading, and deleting ensures storage space is continuously reused while maintaining processing functionality.
3Reliability
If the detachable device is removed without deleting analysis result data, then data is preserved, but unnecessary data occupies storage space on the device
Solution Approach 1:
The image capturing apparatus provides feedback to the detachable device by sending a deletion notification when it has finished using the analysis result data. This feedback mechanism ensures that data is preserved during the needed period and then automatically deleted when no longer required, optimizing both preservation and storage efficiency.
Solution Approach 2:
The detachable device is pre-configured with a deletion list that identifies which files should be deleted. This preliminary setup enables automatic deletion of analysis result data when the device is reattached or powered on, preventing unnecessary data accumulation while preserving needed data.
Data Source
AI summary
A device that is attached/detached to/from an image capturing apparatus and that is configured to obtain image data related to an image captured by the image capturing apparatus, to execute analysis processing on the image data, and to store, in a storage of the device, at least a result of the analysis processing on the image data and information designating specific data is provided. The device deletes, based on the information, data stored in the storage when power supply to the device is started.