Nuclear DCS Operational Lists for Cross-System Task Visibility
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Solution Overview
Problem
The existing digital control systems (DCS) for nuclear power units face challenges with limited visibility and low execution efficiency, particularly during start-stop operations and high-risk tests like the first loop water pressure test, due to the complexity of the system and the need for operators to navigate multiple screens for supervisory parameters, alarms, and control interfaces.
Innovation Solution
An information processing method that outputs task information, digital operational lists, and supporting interface information, allowing operators to quickly find and link to relevant screens and interfaces, thereby improving visibility and efficiency by isolating paper-based regulations and generating digital operational lists and interfaces that enhance the logical structure and cross-system supervisory capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If operators use traditional paper-based regulations and navigate multiple DCS screens to execute programs, then they can access detailed control parameters, but the operational complexity increases and execution efficiency decreases
Solution Approach 1:
The patent merges multiple scattered control screens and paper-based regulations into a single integrated digital operational list interface. This interface consolidates task information, supervisory parameters, alarms, and control interfaces into one unified display, eliminating the need for operators to navigate multiple screens or refer to separate paper documents, thereby reducing operational complexity while maintaining complete information visibility
Solution Approach 2:
The digital operational list serves multiple functions simultaneously: it displays the operational sequence, provides access to supervisory parameters, shows alarm status, enables control operations, and offers navigation to related screens. This multi-functional interface replaces several separate tools and screens, improving ease of operation without sacrificing information completeness
2Reliability
If operators navigate through multiple control screens to find supervisory parameters and control interfaces, then they can access specific control functions, but the execution time increases and productivity decreases
Solution Approach 1:
The system performs preliminary actions by pre-organizing and displaying all necessary control information in the correct operational sequence before the operator needs to execute tasks. The digital operational list is generated in advance with all relevant parameters, interfaces, and steps already arranged in the proper order, allowing operators to immediately begin execution without time-consuming navigation or information gathering
Solution Approach 2:
The patent introduces a digital operational list as an intermediary between the complex DCS system and the operator. This intermediary translates and presents the necessary control information in a simplified, sequential format, mediating between the operator's needs and the complex underlying system, thereby enabling fast and accurate control without requiring direct navigation through multiple screens
3Area of stationary object
If the control interface displays all supervisory parameters, alarms, and control options on a single screen, then the operator's visibility improves, but the device complexity increases
Solution Approach 1:
The patent segments the complex control information into organized sections within the digital operational list, dividing it into logical components such as task information, supervisory parameters, alarm status, and control operations. Each segment is clearly labeled and structured, allowing the interface to display comprehensive information in an organized manner that manages complexity through systematic division rather than presenting a monolithic complex interface
Data Source
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AI summary
The invention is applicable to the field of nuclear power control, which provides a digitalized control system (DCS) of a nuclear power unit, and an information processing method and device for the DCS. Task information, digitalized operation list (2) information corresponding to the task information, and supporting interface (3) information are outputted by the main body of a program (1). The digitalized operation list (2) corresponding to a specified task is searched for according to the program's main body (1). The detailed information of the task, the device information according to the detailed information of the, and task link information are outputted by the found digitalized operation list (2). The digitalized operation list (2) issues a linking instruction to the supporting interface (3). The supporting interface (3) receiving the linking instruction outputs cross-system monitoring parameters and operation instructions. Digitalized processing of the overall program of the nuclear power unit, overcomes deficiencies of DCS visibility. The running efficiency of the overall program of the nuclear power unit is increased, and the advantage of information processing of the DCS is fully employed.