Separate Input Units for Access Control and Data Integrity
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Solution Overview
Problem
Conventional electric apparatuses, such as digital multi-function machines, face issues with unauthorized access and data loss, leading to unfair usage and inadequate maintenance management, as existing solutions fail to effectively prevent manipulation of setup values and maintain accurate failure and repair histories.
Innovation Solution
An electric apparatus with a first accepting unit for user instructions and a second accepting unit for administrators to control and send data on operation setups, coupled with a data storage device to store and manage maintenance history, ensuring only authorized personnel can access and modify setup values, thereby preventing unauthorized access and facilitating efficient maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single accepting unit is used for both user instructions and setup control, then ease of operation is improved, but reliability deteriorates due to unauthorized access and manipulation attacks
Solution Approach 1:
The patent divides the accepting unit into two separate units: a first accepting unit for receiving user instructions and a second accepting unit for receiving setup control data. This segmentation prevents users from accessing setup parameters while maintaining ease of operation for normal functions, thereby resolving the contradiction between ease of operation and reliability.
2Ease of operation
If setup values are accessible to all users, then ease of operation is improved, but loss of information worsens due to unauthorized resetting of counters and manipulation of parameters
Solution Approach 1:
By segmenting the accepting unit into two separate units with different access rights, the patent prevents users from resetting counters or manipulating setup parameters through the first accepting unit, while still allowing administrators to access and modify these parameters through the second accepting unit. This resolves the contradiction between ease of operation and prevention of information loss.
3Ease of operation
If internal memory is used to store failure history, then ease of operation is improved, but reliability worsens due to potential data loss when apparatus fails
Solution Approach 1:
The patent introduces an external storage device as an intermediary to store failure history and operation data. This external storage acts as a backup mechanism that preserves data even when the apparatus fails or when internal memory is compromised, thereby resolving the contradiction between ease of operation and reliability of data storage.
4Device complexity
If a single structure accepting unit is used, then device complexity is reduced, but security worsens due to inability to prevent unauthorized access
Solution Approach 1:
The patent applies segmentation by dividing the accepting unit into two distinct units with different functional roles and access permissions. The first accepting unit handles user instructions while the second accepting unit handles setup control, creating a security barrier that prevents unauthorized access without significantly increasing overall system complexity.
Data Source
AI summary
An electric apparatus and an electric system comprise: a control panel to accept instructions for operations; and a part to detect and control situations of the operations. The operations, carried out by the electric apparatus and the electric system, are in accordance with the instructions. Furthermore, the electric apparatus and the electric system comprise a remote control to accept instructions about situations and setups of the part. It is configured to accept instructions about the situations and setups of the part, only through the remote control.