Bob Assistant - Reference Manual
2023-04-04 - Version 1.0
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2.1.3.3.
Configurable parameters
Some parameters of BoB ASSISTANT can be tuned to adapt to the equipment operation. For more
information on how to change the parameters see §
2.1.3.3.1.
Sampling period
BoB ASSISTANT will periodically wake up to sample the vibration signal of the machine (sampling
duration = 0.25s). By default, it will wake up every 60 seconds during the learning and reporting mode (first
7 days), and will then wake up every 10 minutes during the monitoring mode.
Some machines could need to have some different settings, e.g. machines with short operating cycles.
Mode
Learning period Monitoring Period
Very Fast
10 sec
20 sec
Fast
20 sec
2 min
Legacy
60 sec
5 min
Default
60 sec
10 min
Slow
2 min
10 min
Please be advised: setting BoB ASSISTANT in Fast or Very Fast mode will have consequences on the
device lifespan.
2.1.3.3.2.
State messages
BoB ASSISTANT will send machine status when it detects that the machine is turning ON or OFF, based
on sample results. These messages are enabled by default, they can also be disabled.
State message parameters
Enable State Message (
default
)
Disable State Message
Please be advised: for machines with very short cycles, it is recommended to disable the state
messages, as it could have dramatic effect on the device lifespan, see Downlink section :
2.1.3.3.3.
Battery reset
It is possible to reset the battery consumption counter after battery replacement on the device by
sending a specific downlink to the device.
It is also possible to reset the battery consumption counter using the button, see
2.1.3.3.4.
Vibration threshold management
In some cases, the environment of the equipment is prone to vibration parazites (e.g. 2 large motors
close to each other). In that case, BoB could sense parasitic vibrations, which could corrupt the report data
or even alarm data.
It is possible to change the vibration threshold to consider whether the machine is working or not and
so prevent from getting irrelevant data.
See
§4.7 Change Vibration threshold for On/Off detection
