There have been a number of LoRa use cases in this Forum that rely on fairly accurate water/fluid flow meter measurement sensors. In effect, they use LoRa to simply transmit meter readings.
However there are Use Cases which only require data if water/fluid is moving within a pipe (not the fluid flowrate and volume etc).
This very basic data (fluid moving/not moving) may provide useful information:
for example:- unexpected flow of water within a house water pipe may indicate that the pipework has broken elsewhere, or that someone is in a property and using water. There are clear agricultural use cases in irrigation also.
As always, cost and reliability of the sensor itself is key.
So, before I rush out and start buying a bunch of sensors…I thought I should ask the TTN community.
Has anyone had experience of using non-intrusive simple sensors that reliably indicate that fluid is flowing in a pipe?
Also, has anyone attempted acoustic or vibration sensors to achieve this?