Alarm Reporting Logic for Prioritized Machine Abnormalities
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Solution Overview
Problem
Current systems face delays in reporting machine abnormalities to maintenance vendors, which can hinder quick responses to high-priority issues due to daily transmission of history information, potentially disrupting machine operations.
Innovation Solution
An alarm reporting apparatus that determines the necessity of reporting based on pre-set reporting settings and elapsed time for each abnormality, allowing immediate notification only when the abnormality is critical and has exceeded the monitoring time, regardless of machine operation status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If alarm history information is transmitted once a day to reduce communication load, then communication frequency is reduced, but response time to critical abnormalities increases
Solution Approach 1:
The system changes the parameter of communication frequency dynamically based on abnormality priority levels. Critical abnormalities trigger immediate high-frequency communication, while non-critical ones use low-frequency daily transmission, resolving the contradiction between communication load and response time
Solution Approach 2:
The alarm information is segmented into multiple priority levels (critical, important, general). This segmentation allows the system to apply different communication strategies to different segments, transmitting only critical alarms immediately while batching non-critical ones, thus reducing overall communication load while maintaining fast response for urgent cases
2Loss of time
If all alarm information is transmitted immediately to ensure quick response, then response time is reduced, but communication load increases
Solution Approach 1:
The communication frequency parameter is adjusted based on abnormality priority. Instead of uniform immediate transmission, the system uses dynamic parameter changes to transmit only high-priority alarms immediately, while lowering the frequency for lower-priority ones, thus maintaining fast response for critical issues while reducing overall communication load
3Loss of information
If alarm reporting is suppressed during non-operation to reduce false alarms, then false reporting is reduced, but critical abnormalities during shutdown are missed
Solution Approach 1:
Different reporting policies are applied to different abnormality types based on their criticality. Critical abnormalities maintain high reporting priority regardless of machine state, while non-critical ones are suppressed during non-operation. This local quality differentiation ensures reliable detection of critical issues while reducing false alarms from non-essential sources
Data Source
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AI summary
When alarm information generated by a machine to be monitored is acquired, an alarm reporting apparatus 20 determines that an alarm reporting is necessary if an abnormality occurring in the machine is to be constantly reported, determines that the alarm reporting is not necessary if the abnormality occurring in the machine is to be reported during operation and the machine is not during operation, determines that the alarm reporting is not necessary if the abnormality occurring in the machine is to be reported during operation, the machine is during operation, and an elapsed time from the occurrence of the abnormality has not exceeded a set monitoring time, and determines that the alarm reporting is necessary if the abnormality occurring in the machine is to be reported during operation, the machine is during operation, and the elapsed time from the occurrence of the abnormality has exceeded the set monitoring time. When it is determined that the alarm reporting is necessary, the alarm reporting apparatus 20 reports, to a monitoring apparatus 40, an alarm related to the corresponding machine.