WATTECO BoB Assistant, Справочное руководство

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Bob Assistant - Reference Manual
2023-04-04 - Version 1.0 53
Change Vibration threshold for On/Off detection – New
7.8. What is the autonomy of BoB ASSISTANT V2 sensors?
In its standard use, BoB ASSISTANT's autonomy is a minimum of 3.5 years.
The autonomy of Bob is estimated by counting the number of messages sent, in addition to embedded
calculus
If your machine has many stop and start cycles during the course of a day, the start/stop messages will
be numerous and will have a strong impact on BoB ASSISTANT's autonomy. Beyond 2 start/stop per day, it
is recommanded to disable these messages. The time and operating rate will always be available in the
reports sent every 3 hours.
7.9. How to evaluate LoRa coverage? What is the operating limit?
Depending on the environment of the sensor, it is sometimes hard to define if a Public Network will cover
BoB location. The best way to know the strength of the real signal is to measure it with a dedicated sensor
(
you can use our Netw’O solution for e xample )
RSSI : Strength of the radio signal sent by Bob at the Gateway level (risk of message loss/missing data)
7.10. First learning and complete learning, what is the difference?
As BoB ASSISTANT starts, it initiates a first learning phase. This phase can be more or less long depending
on the type of equipment, the complexity of its vibration signature and the number of operating speeds. It
can last between 1 hour for the simplest systems and a few days for complex equipment.
You can track the progress of the learning on your dashboard, with a report sent every 20%.
After the first learning session, BoB ASSISTANT starts sending machine status data. A report is sent every
3 hours. However, BoB ASSISTANT stays tuned for 7 days and continues to learn. It analyses the new
perceived vibrations, compares them to those already learned, and records them if they are relevant. It is
therefore normal to see the level of abnormality gradually reduce during the first week. There will be no
alerts sent during this 7 days.
After 7 days, BoB ASSISTANT has completed its training and is watching over your machine.