Modularis water meter attachment with LoRaWAN®

LoRa Wasserzähler

The water meter attachment was developed for meters with a modular system shaft. The mechanical meter is read inductively. LoRaWAN® is implemented as the wireless technology. The attachment module is parameterized via an optical interface. The radio protocols are short, ranging from a few milliseconds to 1-2 seconds. Since the water meter is battery-operated and designed for a lifespan of 10 years, the transmission frequency has been limited to every 2-4 hours, which is sufficient for billing purposes. For data protection requirements, the option to limit the transmission intervals to 1, 7, or 14 days via LoRa® radio has been implemented.

Activation options:

  • via flow detection of a preset amount of water
  • via optical head and an activation command via PC program or Android app
  • via a special activation head that sends the activation command
  • via a magnet (see video)
Some key facts:

Funksystem LoRaWAN®

Backflow detection

Adjustable transmission interval

Automatic activation possible

Nominal flow rate Qn 1.5-15 (Q3 MID 2.5-25)

Inductive scanning

Duration 10 years

Leakage detection

optical interface with PIN

Manipulation detection

double AES 128 encrypted

Retrofittable
Documents / Software:

Datasheet

User manual

LoRa Setup Tool

Activation App Android
wM-BUS Gateway
The wM-Bus Gateway receives wireless M-Bus protocols in T/C/S mode, filters them as needed, stores them temporarily, and sends them to a server via an IP connection.

The gateway does not have a mobile data connection. It only uses existing networks. The gateway is particularly suitable for stationary reception of wM-BUS protocols using an existing internet connection. Internet routers are usually already in place. In most cases, no changes need to be made to the router settings.
Simply plug the gateway into the router's USB port (optionally with a USB power supply) and connect it to the router with a network cable.

The gateway can optionally be parameterized via a website, USB interface or via the wM-BUS gateway server.
The received wM-BUS protocols can be pre-filtered in the device by manufacturer, medium code and/or by individual IDs.
The gateway sends the received and filtered data to the server either immediately, hourly, daily, or monthly.
The free "wM-BUS to TCP Gateway Server" can be used as the server, or an application developed by the user.