Sensor Guru

https://www.iotforall.com/lorawan-most-common-applications-and-use-cases

LoRaWAN - Most Common Applications and Use Cases With the help of LoRaWAN technology, we can connect millions of devices to create smart cities, buildings, agriculture, and more!

There are number of protocols for transfering data (basically input output status, machine operating parameters etc) from machine to iot server...do we really need so many?
Also, what do we really do with the data collected from machines? How often this data is collected? Why so often? Do we really know basis to answer these questions?

Let us democratize the Condition Based Maintenance ... of a simple but very widely used industrial agreegate ...the humble !
many talk about , to predict the life / recondition time for the humble electric motor. but as we all know AI, ML needs big data sets, experiance and knowhow to handle these data sets to arrive at an approximate life / maintenance for electric motor.
I would like to cbm or make automation simple! so that a simple logic also can give us approximate maintenance time for motor. After many discussions with experts and experianced technocracts, I could find out which are parameters needed to be monitored to do the cbm of electric motor.
These are:
Ambient temperature, motor housing temp, vibrations of motor, Motor frame size, Motor phase current, Age of the motor....
For more information, please feel free to contact me for more info regarding making of simple!

Vibration Analysis for beginners 4 (Vibration terms explanation, Route creation) https://adash.com/Frequency, Amplitude, Period, RMS, Spectrum, Frequency domain view, Time domain view, Time waveform, Displacement, Velocity, Acceleration -...

Crest factor is an important indicator of rolling element bearing failure initiation. It is a ratio of peak acceleration divided by rms acceleration for a particular frequency band. This frequency band is the range of frequency band in which ball pass frequency lie. In the beginning of bearing failure, crest factor rises as the peak acceleration increases but rms acceleration doss not rise as fast. As the bearing gets damaged further, peak acceleration remains same bur rms acceleration increases, so the crest factor reduces. The time interval between rise and fall of crest factor is generally depend on the application.it is approximately 2 weeks for electric motors bearinh operating 24x7, but could be 1 week for bigger MW sized gear boxes bearing failures. So, monitoring crest factor can predict rolling element bearing failure.....