Nuclear Event Display Aggregation for Emergency Management
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Solution Overview
Problem
During severe accidents in nuclear power plants, existing systems fail to effectively aggregate and present changing event data in a clear and comprehensive manner, leading to difficulties in decision-making and management.
Innovation Solution
A display generating device and method that acquires and arrays event data by time series based on categories, with features to extend common data across categories, color-code important data, and aggregate less important data, enhancing visibility and report clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If event data are displayed individually for each category, then the detail information is preserved, but the overall management and comprehension of multiple events becomes difficult
Solution Approach 1:
The patent merges multiple individual event data items into a single aggregated display unit that represents multiple categories. The aggregation unit combines event data from different categories (e.g., reactor status, steam generator status, turbine status) into one consolidated visual element, allowing operators to comprehend overall plant status without managing numerous separate displays.
Solution Approach 2:
The aggregated display unit serves multiple functions simultaneously: it displays events from different categories, provides temporal sequencing through time-series arrangement, and enables both individual and collective event monitoring. This multi-functional design reduces the need for separate specialized displays for each category.
2Loss of information
If all event data are displayed in detail, then complete information is provided, but the visibility of critical information is reduced due to information overload
Solution Approach 1:
The patent segments event data into different hierarchical levels: individual event data items, category-grouped events, and aggregated multi-category units. This segmentation allows the system to present detailed information when needed while providing summarized views for overall comprehension, preventing information overload by organizing data at appropriate granularities.
Solution Approach 2:
The patent introduces temporal dimension through time-series arrangement of aggregated event data. By organizing events chronologically across multiple categories in a time-based sequence, the system adds a temporal dimension that helps operators understand event progression and priority without being overwhelmed by spatial arrangement of numerous individual data points.
3Measurement precision
If event data from multiple categories are managed separately, then category-specific details are maintained, but the time-series analysis of related events across categories becomes difficult
Solution Approach 1:
The patent merges event data from multiple categories into aggregated display units that maintain temporal relationships. By combining events from different categories (reactor, steam generator, turbine, etc.) into unified time-series sequences, the system enables operators to analyze cross-category event progression while preserving accurate timing information for each individual event.
Data Source
AI summary
A display generating device includes an acquiring unit configured to acquire multiple pieces of event data, each of which being provided with time information and identification information indicating which one of multiple categories related to a facility the event data belongs to, and a generating unit configured to generate display data by arraying the multiple pieces of the event data in time series based on the time information for each of the categories depending on the identification information.