Multi-Window Display Restoration via Stored Arrangement Data
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Solution Overview
Problem
Conventional industrial plant control systems experience operator confusion and potential process failures due to randomly reordered monitor-control graphical user interfaces (MCGUIs) when the primary server fails and the secondary server performs a re-set process, leading to improper operator actions.
Innovation Solution
The system retains and redisplay stored window information to maintain the original arrangement of display screen windows and MCGUIs, ensuring they reappear in their previous positions after a failure, such as loss of power, by communicating and storing DSW and MCGUI identification, location, and attribute information between servers and the operator computing system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the secondary server performs a re-set process after primary server failure, then the system restores operational functionality, but the MCGUIs reappear in random order causing operator confusion
Solution Approach 1:
The system performs preliminary actions by storing the original arrangement information of MCGUIs before any failure occurs. When the secondary server takes over, it retrieves this pre-stored arrangement information and uses it to restore the MCGUIs to their original positions, thereby avoiding operator confusion while maintaining system reliability
2Reliability
If the MCGUIs are re-invoked during the re-set process, then the display windows are restored, but they appear in different positions from their original arrangement
Solution Approach 1:
The system creates a copy of the MCGUI arrangement information and stores it in the database. When the secondary server needs to restore the display, it retrieves this copied arrangement information rather than creating a new random arrangement, thus preserving the original layout information through the failure and recovery process
Data Source
AI summary
A method (600) for recovering a set of display screen windows (402, 404, 406, 408) in a multi-window display screen (304). The method involves retaining window information as stored window information (SWI). The SWI includes a first arrangement for a first set of display screen windows (DSWs) displayed on the multi-window display screen at a first time. Each of the DSWs has respective content (420, 422, 424, 426). The method also involves using the SWI for redisplaying the first set of display screen windows in the first arrangement on the multi-window display at a second time. The second time is after the first time and follows an event causing the first set of display screen windows to be removed from the multi-window display screen. The redisplayed DSWs contain at least a portion of the respective content.