Adaptive Data Recording Method for Vehicle Image Storage
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Solution Overview
Problem
The FAT file system in storage media is prone to cluster chain damage and cross-connected failures due to frequent file creation and deletion operations, which can lead to data loss and operational inefficiencies.
Innovation Solution
An adaptive data recording method that minimizes cluster chain damage by sequentially connecting cluster addresses, terminating and reusing cluster chains, and adjusting file sizes to optimize storage capacity usage, especially in vehicle image recording devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If frequent file creation and deletion operations are performed in FAT file system, then storage capacity usage is improved, but cluster chain damage and cross-connected failures increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring a fixed-size cluster chain structure before file creation. Instead of dynamically allocating cluster chains on-demand, the system pre-establishes a predetermined number of cluster addresses in sequence, which are then reused for subsequent files. This prevents fragmented and broken cluster chains while maintaining efficient storage capacity usage through systematic reuse of pre-configured cluster structures.
2Adaptability or versatility
If cluster chains are frequently created and deleted, then data recording flexibility is improved, but operational complexity and failure risk increase
Solution Approach 1:
The patent applies parameter changes by transforming the dynamic cluster chain allocation mechanism into a fixed-parameter system. The system changes the parameter of cluster chain configuration from variable/dynamic to fixed/pre-determined. A predetermined number of cluster addresses are configured in advance, and this fixed structure is reused for multiple files, thereby reducing management complexity while maintaining recording flexibility through parameter reuse rather than parameter creation.
3Adaptability or versatility
If traditional FAT file system is used for continuous recording, then compatibility is maintained, but data loss risk increases due to cluster chain damage
Solution Approach 1:
The patent applies segmentation by dividing the storage medium into predetermined fixed-size cluster chains rather than allowing dynamic cluster chain formation. The storage space is segmented into a predetermined number of cluster addresses that are configured in advance and reused systematically. This segmentation approach maintains compatibility with standard FAT file system controllers while preventing data loss by eliminating the dynamic allocation processes that cause cluster chain damage and cross-connected failures.
Data Source
AI summary
Provided is an adaptive data recording method of recording data in a storage medium using a file allocation table (FAT) file system by a data recording device, the method includes: receiving the data; creating at least one file in which the data is recorded, configuring a cluster chain by sequentially connecting cluster addresses according to an FAT of the storage medium, and recording the data at a actual position of each cluster address; when a file termination interrupt occurs, terminating the file by terminating the cluster chain of the file under data recording, creating a new file, configuring a new cluster chain, and continuously recording the data; and if a residual capacity of the storage medium is less than a predetermined spare capacity when creating a new file, selecting at least one file which is terminated after previous data recording, and continuously recording the data reusing the cluster chain of the selected file.