Already have an account? Sign in
1 project 2 followers
A low cost, high performance energy meter for my home.
Thank you! I would like to take credit, but configuring the graphs only took about 10 minutes of my time using Grafana - which is a really great tool.
I'll try and answer your questions, and go through the changes you will have to make for this to work. It will take some knowledge of python and modbus.
Good luck, and please ensure that you get someone with the suitable qualifications and experience to install your meters.
Ideally, a split core CT and voltage reference can be used with makes connecting a whole lot easier. https://openenergymonitor.org/emon/ looks like they have done a pretty good job with this. I just wanted something simpler, more accurate (split core CTs introduce a number of errors) and with a better database.
In terms of compression, the algorithm described at https://support.inductiveautomation.com/usermanuals/ignition/index.html?historian_properties.htm (scroll down to the pictures) is even better than a simple deadband filter. I should probably implement something like this, but will probably only get around to it with the SD card fills up.
Or connect with your social account:
New here? Create an account