Improper alarms may be detected by tracking the operator's activity:
The machine can measure the time elapsed between the alarm generation and the operators response, and then calculate the trend of response time.
A typical pattern of fatigue development is U shaped, as described in the following chart ...
The machine can detect operators' activity intended to mute the alarms, and measure the rate of such actions.
A typical pattern of muting the alarms is ascending.
Updated on 12 Mar 2017.