Operation Reception Screen Switching Around Occupied Control Rights
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Solution Overview
Problem
Existing techniques restrict simultaneous operation of terminals, preventing users from switching screens for data reference purposes, which is inconvenient and unnecessary, especially when an operation right is not required.
Innovation Solution
An operation reception device with a display unit, display control unit, and main control unit that allows screen switching based on operation rights, skipping occupied screens and ensuring security by managing and sharing operation rights between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operation rights are restricted to ensure security of the control device, then security is improved, but screen switching capability deteriorates
Solution Approach 1:
The patent implements dynamic control of screen switching based on real-time operation right status. The control unit checks whether operation rights are occupied before allowing screen switches, and dynamically adjusts switching behavior accordingly. This resolves the contradiction by making the system adaptive - restricting switches only when security is at risk while allowing free switching when safe.
Solution Approach 2:
The patent applies different screen switching policies to different screens based on their specific operation right requirements. Each screen is evaluated individually to determine if switching to it would conflict with occupied operation rights. This localized approach ensures security-critical screens are protected while non-critical screens remain accessible, resolving the contradiction at the appropriate granularity.
2Reliability
If simultaneous operation restrictions are enforced, then security is improved, but user convenience deteriorates
Solution Approach 1:
The patent implements partial restriction of simultaneous operation - not all screens are restricted, only those where operation rights are currently occupied. The control unit selectively blocks screen switches based on the specific operation right status of each target screen. This partial application of restrictions maintains security where needed while preserving user convenience for non-critical operations.
3Reliability
If operation rights are strictly managed, then security is improved, but system versatility deteriorates
Solution Approach 1:
The patent makes the operation right management system dynamic rather than static. Instead of permanently restricting access to screens with operation rights, the system continuously monitors the occupation status and adjusts switching permissions in real-time. When operation rights are released, screen switching becomes permitted again. This dynamic approach maintains security during critical operations while restoring versatility when safe.
Data Source
AI summary
An operation reception device (200) comprising: a display unit (101) for switching between and displaying a plurality of screens; a display control unit (102) for controlling the switching of the screens on the display unit (101) in a prescribed sequence; and a main control unit (103) for controlling the screen switching sequence. When the main control unit (103) receives a switching instruction from a first screen and a screen having an operation permission for changing the setting content of a sequence control device exists, switching to the screen having an operation permission is not carried out; instead, switching to a screen not having an operation permission is carried out.