File Transmission Apparatus Overwrite Prevention Control
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Solution Overview
Problem
Existing file transmission apparatuses often unintentionally overwrite files with the same names, leading to data loss, as they either require additional information in file names to prevent overwriting or waste user specifications when it is not needed.
Innovation Solution
A file transmission apparatus with a selection unit to choose between file names with or without additional information, a setting unit to set the file name based on user selection, a transmission unit to transmit the file, a reception unit to receive user specifications on overwriting, and a control unit to enable reception based on user selection, allowing users to specify whether to overwrite files with the same name.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional information (serial number and transmission date) is added to file names to prevent overwriting, then file overwriting is prevented, but user control is reduced and file names become more complex
Solution Approach 1:
The system dynamically adjusts file naming behavior based on user selection. The file transmission apparatus provides two modes: automatic addition of serial numbers and transmission dates to prevent overwriting, and manual user control to specify whether to overwrite existing files. This dynamic adaptability resolves the contradiction by allowing users to choose the level of automation appropriate for their needs.
Solution Approach 2:
The system changes the parameter of file name composition based on user settings. When automatic protection is enabled, file names include serial numbers and transmission dates; when manual control is selected, file names can be simple without additional information. This parameter change allows the system to adapt between preventing overwriting automatically and allowing user control.
2Reliability
If additional information is added to file names, then overwriting is prevented, but user specification becomes wasted when overwriting is not needed
Solution Approach 1:
The system dynamically enables or disables the overwriting specification function based on user selection. When users choose automatic file name protection with serial numbers and transmission dates, the overwriting specification function is disabled, preventing wasted user input. When users choose simple file names without additional information, the overwriting specification function is enabled, allowing users to specify their preferences. This dynamic control eliminates wasted user specifications.
3Ease of operation
If users are caused to specify whether to overwrite files, then user control is maintained, but system complexity increases
Solution Approach 1:
The system segments the file transmission function into two distinct modes: automatic file name protection mode and manual overwriting control mode. This segmentation simplifies the overall system logic by providing clear, separate pathways for different user needs, reducing the complexity of control logic compared to a single unified system that must handle all cases.
4Ease of operation
If simple file names without additional information are used, then user control is maintained, but unintended overwriting occurs
Solution Approach 1:
The system changes the file name parameter based on user selection. When users choose simple file names without serial numbers and transmission dates, the system enables the overwriting specification function, allowing users to maintain control while preventing unintended overwriting through explicit specification. This parameter change resolves the contradiction between simplicity and safety.
Data Source
AI summary
A specification of whether to overwrite a file having a same file name can be received based on a selection of whether to add additional information to a file name.