Patent ID: 11887465
Assignee: YOKOGAWA ELECTRIC CORPORATION
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A device, comprising:
processing circuitry configured to:
identify an alarm event pattern within a log of alarm events that occur within a process control system;
determine that a current alarm event within the process control system belongs to the alarm event pattern;
determine one or more operator actions for resolving the current alarm event based on the alarm event pattern; and
generate a control signal that causes the process control system to implement the one or more operator actions to resolve the current alarm event,

wherein determining the one or more operator actions for resolving the current alarm event based on the alarm event pattern comprises:
identifying occurrences of a first alarm event within the log of alarm events;
assigning time windows to the occurrences of the first alarm event based on notification times and recovery times of the occurrences;
identifying operator actions within each time window;
performing one or more operations to calculate at least one probability value for the time windows; and
determining whether to associate the operator actions and the first alarm event with one another based on the at least one probability value calculated for the time windows.