Display System Signal Line Visualization for Control Process Clarity
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Solution Overview
Problem
In nuclear and thermal power plants, observers need to understand the configurations and behaviors of individual components to take appropriate action during abnormalities, but conventional monitoring systems only visually present the states of components without providing the necessary background information on control processes.
Innovation Solution
A display system that presents a control block diagram including control components and signal lines, with the display format of signal lines changing based on signal values, allowing for clear visualization of both the state of controlled objects and the control processes performed in the control device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional monitoring systems display only component states, then the display is simple and clear, but the observer cannot understand the control process background
Solution Approach 1:
The display system segments information into two distinct parts: component state display and control process display. The control process is further segmented into control blocks representing different calculation types (reactor power calculation, control rod position calculation, etc.), allowing observers to understand the background without overwhelming the interface
Solution Approach 2:
The patent adds a new dimension to the display by introducing control block diagrams that show the flow of control logic and calculations. This separate dimensional representation of control processes complements the traditional component state display, enabling comprehensive information presentation without cluttering the original simple display
2Loss of information
If detailed control process information is provided, then observer understanding is improved, but the monitor screen becomes cluttered and harder to read
Solution Approach 1:
Different regions of the display serve different purposes: the main area shows component states with high visual clarity, while a dedicated control block diagram area shows control processes. Signal lines in the control block diagram use varying thicknesses and colors to encode different signal value magnitudes, providing detailed information without uniform clutter
Solution Approach 2:
The control block diagram uses color-coded signal lines to represent different signal value ranges. By dividing the signal value range into multiple thresholds and assigning different colors or thicknesses to different ranges, the system conveys detailed control information through visual variations rather than text-heavy displays, maintaining screen readability
Data Source
AI summary
An object is to clearly present not only the state of a controlled object but also a control process performed in a control device that controls the controlled object. Display system including a display control device that presents a calculation process performed in a control device for controlling a controlled object, that displays, on a display device, a control block diagram including a control component and a signal line and the state of the controlled object, and that changes the display format of the signal line in the displayed control block diagram according to a signal value transferred via the signal line.