WATTECO BoB Assistant, Справочное руководство

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Bob Assistant - Reference Manual
2023-04-04 - Version 1.0 12
2.1.3.1.3. End of learning mode
At the end of the learning mode (7 days), BoB ASSISTANT will have completed its dataset.
For example, BoB ASSISTANT could have the following dataset, with two distinct vibration cycles with
their respective standard deviation from average point (radius)
2.1.3.2. Monitoring
After the learning mode, BoB ASSISTANT will switch to Monitoring mode, where it will continue its
reporting activity, and will start sending alarms if the drift in the vibration signature pass a defined threshold
(default value is 25% drift).
For each signal sampling (every 10 minutes by default), BoB ASSISTANT will process the sampled signal,
and compare it to its dataset:
For the green sample, the distance/drift of the point compared with the average point is within the
defined threshold (default drift percentage threshold is 25%). In this case, BoB will add the recorded data
to prepare the periodic report
For the red sample, the distance/drift of the point compared with the average point is beyond the
defined threshold. In this case, BoB will send an ALARM MESSAGE. The drift percentage triggering an ALARM
MESSAGE can be customized, see §
4.4 Change ALARM MESSAGE threshold .
The alarm message can then trigger an e-mail/SMS alert at the platform level (cloud or on premise),
which will be sent to maintenance teams for machine inspection.