Plant Alarm Definition Switching for State Transition Management
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Solution Overview
Problem
Conventional alarm management systems in process control plants face inefficiencies in operator and engineer workflows due to cumbersome engineering procedures and difficulties in recognizing state transitions and alarm behavior changes, leading to increased burdens and potential mistakes during maintenance and operation.
Innovation Solution
An alarm management apparatus and method that includes a detection unit to identify state transitions based on output information and a changing unit to update alarm definition information, allowing for autonomous or manual state transitions, thereby improving workflow efficiency and reducing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If engineering work is executed manually through approval and design processes, then alarm definition information can be updated, but the procedure becomes cumbersome and time-consuming
Solution Approach 1:
The system pre-defines multiple alarm definition information sets corresponding to different plant states (normal operation, maintenance, shutdown) before actual state transitions occur. When a state transition is detected, the system automatically selects and applies the appropriate pre-defined alarm definitions, eliminating the need for manual design and approval processes during operational changes.
Solution Approach 2:
The alarm management system automatically detects plant state transitions and self-updates alarm definition information without requiring manual engineering intervention. The system serves itself by monitoring plant conditions and autonomously configuring appropriate alarm behaviors based on the detected state.
2Adaptability or versatility
If alarm definition information is updated frequently during maintenance, then alarm behavior can adapt to plant states, but operator recognition and accuracy decrease
Solution Approach 1:
Multiple alarm definition information sets are pre-configured for different plant states before maintenance or operational changes occur. This allows the system to quickly switch between predefined configurations rather than updating definitions in real-time, maintaining operator familiarity while adapting alarm behavior to current plant conditions.
3Ease of manufacture
If manual updates of alarm definition information are performed, then changes can be implemented, but the burden on engineers and operators increases
Solution Approach 1:
The system automatically performs the tedious task of updating alarm definition information by detecting plant state transitions and selecting appropriate pre-defined configurations. This eliminates manual engineering work while maintaining the flexibility to adapt alarm behavior to different operational states, significantly reducing the operational burden.
Solution Approach 2:
The system continuously monitors plant operational states and uses this feedback to automatically determine which alarm definition information set should be active. This closed-loop approach ensures alarm behavior always matches current plant conditions without requiring manual assessment or configuration by operators.
Data Source
AI summary
An alarm management apparatus detects a state transition of a plant based on output information that includes at least an alarm that is output from the plant or an instruction from a user, and changes, in a case where the state transition is detected, first definition information that is definition information on behavior of the alarm during monitoring to second definition information that is the definition information that corresponds to a state of the plant after a transition.