Dynamic Timeout Adjustment for Image Processing Apparatus Security
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Solution Overview
Problem
In image processing systems, if a connection between a mobile terminal and an image processing apparatus is not removed by the terminal, direct operation on the apparatus is denied until a timeout time passes, leading to reduced user convenience due to forgotten disconnection operations.
Innovation Solution
The system decreases the predetermined timeout time for removing restrictions on direct operation of the image processing apparatus when a user with the appropriate privilege requests removal through the operation screen, allowing direct operation even without active terminal connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection is automatically removed after a predetermined timeout time, then the system security is improved, but the user convenience deteriorates when the timeout time is long
Solution Approach 1:
The timeout time is made dynamic rather than fixed. The system automatically adjusts the timeout duration based on whether a direct operation request is received from the operation screen. When a user requests direct operation, the timeout time is extended or reset, allowing direct operation permission to be granted. This dynamic adjustment resolves the contradiction by adapting the security parameter (timeout time) to user needs without compromising overall system security.
2Ease of operation
If the timeout time is extended to allow direct operation, then the user convenience is improved, but the system security deteriorates
Solution Approach 1:
The system implements feedback control by monitoring operation screen inputs and automatically adjusting the timeout time based on user requests. When a user requests direct operation through the operation screen, the system receives this feedback and modifies the timeout parameter accordingly. This feedback mechanism allows the system to extend timeout time only when explicitly requested, balancing user convenience with security by not automatically extending timeout without user input.
Solution Approach 2:
The system changes the timeout time parameter dynamically based on operation screen requests. Instead of using a fixed timeout value, the system adjusts this parameter in response to user actions. When direct operation is requested through the operation screen, the timeout time parameter is modified to permit direct operation, thereby resolving the security-convenience contradiction through controlled parameter adjustment.
Data Source
AI summary
An information processing system includes: a processor or a plurality of processors configured to: decrease a timeout time that is predetermined as a condition for removal of a restriction in response to an operation for requesting for the removal of the restriction performed on an operation screen of an image processing apparatus that is remotely operated by a terminal and that is subject to the restriction on a direct operation.