Adaptive Verification Interval for Alarm Generation
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Solution Overview
Problem
Current alarm generation systems in critical situations often produce false alarms due to parameter deviations, which can be caused by artifacts, motion, or external disturbances, leading to unnecessary alerts and increased stress.
Innovation Solution
A process that adapts the verification interval based on the extent and duration of parameter deviations from preset values, using threshold values and counters to differentiate between critical and non-critical deviations, thereby reducing false alarms by ensuring only significant violations trigger alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If alarm generation is triggered immediately when parameter deviates from preset values, then response speed is improved, but false alarm rate increases
Solution Approach 1:
The system performs preliminary verification by monitoring whether the parameter remains outside the preset range for a predetermined time period before triggering an alarm. This preliminary action filters out transient deviations caused by artifacts or motion, ensuring that only sustained critical deviations generate alarms, thus reducing false alarm rates while maintaining appropriate response speed for genuine critical events.
2Reliability
If verification interval is extended to reduce false alarms, then alarm accuracy is improved, but response time to critical events increases
Solution Approach 1:
The verification interval is made dynamic rather than fixed. The system adjusts the verification duration based on the specific parameter being monitored and the clinical context. For critical parameters requiring rapid response, the verification interval is shortened to enable faster alarm generation, while for less critical parameters, a longer verification interval is applied to reduce false alarms. This dynamic adjustment optimizes both response time and alarm accuracy for different monitoring scenarios.
Data Source
AI summary
A process is provided for generating an alarm if at least one monitored parameter (13) deviates from at least one preset value or value range, with the detection or determination of parameter (13) in case of its deviation. The process takes into account a verification interval (25) of limited duration in time and with adaptation of the time limitation of the verification interval (25) as a function of the extent of deviation of parameter (13) from the preset value or value range. A control device, a device for generating an alarm, a treatment devices, a digital storage medium, a computer program product as well as to a computer program are provided.