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OpenEnergyMonitor hardware: raspberry pi, emonTX
and emonGLCD |
In our
smart microgrid laboratory at the
Alpen-Adria-Universität Klagenfurt we need to be able to measure energy flows at different places in the network. Our criteria had been to be able to measure power, current, and voltage with adjustable measurement time intervals. The meters should be networked wirelessly with a visualisation possibility via an embedded device or a web page. In order to implement appropriate measurement strategies (for example measuring with a
time-triggered architecture) the system should be fully programmable, in other words open-source.
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| emonCMS web-app visualization tool |
To meet this requirements we decided to use the
OpenEnergyMonitor. It provides a metering board
emonTx, which is based on Arduino and communicates to some base station. This can be either a own-built base station
emonBase from OpenEnergyMonitor or the nowadays trendy
Raspberry Pi. All necessary software is provided and easy to use. The OpenEnergyMonitor also provides an energy visualisation tool called
emonCMS, which can be installed on the Raspberry Pi. It can be used for processing, logging and visualizing energy. Like the other software also the emonCMS is open source.
Links:
- Raspberry Pi, a credit-card-sized embedded computer running Linux
- OpenEnergyMonitor, open-source energy monitoring tools
- A. Monacchi, D. Egarter, W. Elmenreich. Integrating Households into the Smart Grid. Workshop on Modeling and Simulation of Cyber-Physical Energy Systems, Berkeley, CA, May 2013.
- W. Elmenreich, G. Bauer, and
H. Kopetz.
The
time-triggered paradigm.
In Proceedings of the Workshop on Time-Triggered and Real-Time
Communication Systems, 2003.
