Municipal utilities heat metering and energy meter reading

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Objekt

  • TraveNetz GmbH
  • Netzbetreiber in Lübeck und Umgebung
  • Mehrere BHKW im Stadtrahmen
  • Dezentrale Zählermesstrecken über M-Bus
  • Inbetriebnahme von Symcon im Jahr 2024

Hardware

  • 18x SymBox Pro (eine je Standort)
  • integrierte M-Bus Schnittstelle
  • 20x M-Bus Gateway
  • 1x LTE-Router je Standort
  • 1x Switch für Netzwerk je Standort

Symcon-Produkte

  • Symcon Professional

What was it about?

For heat quantity recording, various CHP units of TraveNetz GmbH were to be monitored.
Also previously unused M-Bus lines were to be used to read heat quantity and electricity meters. This was still largely done manually.
Active control should not be used.

Which systems were used?

All devices were readable via M-Bus. One SymBox was therefore used for each node. An M-Bus gateway was installed for each line.

What were the challenges?

The M-Bus lines lay idle for several years. As a result, some of them were not operational.
Some of the locations had no internet. This meant that data transmission to the control center was not possible at the beginning. This was retrofitted as required.


How is Symcon used?

Symcon is distributed across the 18 nodes in the form of SymBoxes. An MQTT server has been set up in the data center, which receives the meter readings from each Symcon every hour. This allows any failure of a measuring point or meter to be detected. Using old lists, the target and actual status on the M-Bus lines could be determined, allowing Symcon to also be used for error analysis. On-site visualization gives trained technicians a direct overview of the system. This also allows new search processes to be started directly.

Project Link Homepage der Stadtwerke Lübeck
Integrator Symcon GmbH
Location 23554 Lübeck
E-Mail support@symcon.de
Phone +49 451 30 500 511

Conclusion

After just a few months, all locations were retrofitted and initial fault analyses were carried out. The newly acquired data enabled TraveNetz GmbH to identify and analyze faulty routes. The next steps are to repair the faulty routes.
Symcon is already reliably supplying large volumes of data for analysis and visualization.

Image credit: GNTB

Any questions?