Goor morning,
I need your help to find solutions for smart metering.
Basically i need a solution to put on top on our water meter ( that cannot be change) a lora sensor that detect water flow based on the counter water meter change.
Do You suggest any product or solution to do It? This wpuld be very helpful to find anomalous water consumption in our village
Thank you
Paolo
What meter? (Make/model etc) Does it have e.g a pulse output that can be counted, spinning contrast/marker disk, other… that will dictate what might be able to work with it to capture data, log and send as approriate… without details your question is too open…
Thi is the meter I have
Regards,
Paolo
Realistically you should change the meter or a put another in line with it.
You could perhaps hack something together with computer vision, but then you’d need a substantial power source even if you only wake up occasionally to turn on the computer and camera and light to read it (don’t use a pi, they can’t sleep!).
When all that’s done it’s not entirely clear how LoRaWan is a help, unless you’re wanting to send the data back to someplace more convenient than the meter.
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Thank you for your reply.
I need to find some better solution: maybe in this stage we are not ready in our village to include smart metering of a smart city, those smart meters are property of water supplier and we can’t change by ourselves. This is a little frustrating for us because in many building we have water leakage and we would start monitoring water consumption in the night when it is supposed that no one use water.
At this stage I see the manual option easier, that is read and write the count in the evening and check it again in the morning, but no nice in the era of smart cities
They own that meter but at some point downstream of it the water goes into a pipe that the building owner owns, and is free to add another meter to.
If you have mains power there, I’d except that someone has a raspberry pi computer vision project to extract numeric values from pictures on a dial.
If the location of the existing meters can be safely accessed, manually reading and recording the values could be a “responsibility in community” job to assign to maturing children though, and educational if extended to making graphs of trends using a combination of manual and desktop software methods. Let an older one work on the pi vision thing 
Thank you for your suggestions.