Remote Unit used for the collection, storage and transmission of measuring data from Smart Water Meters. Supports “point to point” and “in bus” connections using the Narrow Band IoT standard.

The RMU NB-Aqua collects measurement data from smart water meters using the UNE82326 protocol. Information is locally stored before later transmission via the Narrow Band cellular network (NB-IoT) to standard IoT platforms in the Cloud.

Data may be exchanged on demand or using a programmed transmission pattern, taking variable levels of spectrum and signal penetration into consideration. The device is able to operate with very low levels of network coverage and power consumption is optimised.

Device autonomy has been maximised thereby minimising operating maintenance costs of the measurement network.

The RMU NB-Aqua is compact allowing use in confined spaces. The set-up is carried out automatically, with a local auto check-up triggered during this phase to ensure it is completed correctly.

Features:

  • Ultra low consumption in optimised operation mode.
  • Highly reliable communications.
  • Low network data usage.
  • Remote configuration, management and maintenance provided by the SÓCRATES cloud platform.
  • Improved coverage with good indoor signal penetration.
  • Ability to register and locally store measurements.
  • Ergonomic, small with easy installation and set-up.
Socrates loT Platform:

Sócrates is responsible for the management of RMU NB-Aqua devices, as well as the administration of collected data.

  • Network Monitoring
  • Device Management
  • Data Server
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Integration Diagram

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info

  • The RMU NB-Aqua collects measurement data from smart water meters using the UNE82326 protocol.
  • Information is locally stored before later transmission via the Narrow Band cellular network (NB-IoT) to standard IoT platforms in the Cloud.
  • Data may be exchanged on demand or using a programmed transmission pattern, taking variable levels of spectrum and signal penetration into consideration.
  • The device is able to operate with very low levels of network coverage and power consumption is optimised.
  • Device autonomy has been maximised thereby minimising operating maintenance costs of the measurement network.
  • The RMU NB-Aqua is compact allowing use in confined spaces.
  • The set-up is carried out automatically, with a local auto check-up triggered during this phase to ensure it is completed correctly.

NarrowBand LTE Radio

  • Category NB1
  • Band 20 (800MHz) : 62.5Kbps UL/27.2Kbps DL
  • Other optional bands – band 8 and band 5
  • Optimised usage of spectrum and signal penetration. It exchanges data sporadically even with very low levels of coverage.

Data Local Link

  • Instant readings and immediate transmission.
  • Bus Communication using UNE82326.
  • SADC default configuration.
  • Up to 50 devices connected via Bus.
  • Ability to read A/A+ frames, B frames when requested by the Socrates Platform.

Hardware

  • Includes three wall brackets for an easy installation.
  • Aerial located inside the casing
  • Plastic casing for outdoors use.
  • 2m cable standard output and RJ11 available.
  • Weight between 150g and 250g depending upon batteries.

Electrical and Environmental

  • Battery powered. 2.5V to 4.2V.
  • Waterproof casing up to IP67/68 level
  • Humidity range from 5% to 98%
  • Temperature range from -10º to +50ºC
  • Autonomy depending upon batteries and usage.

Regulation and Certification

  • RED certified – EN301 489-1 and EN301 489-17 compliant.
  • EMC certified – EN61000-6-1 compliant.
  • RoHS certified – EN50581 and EN62321-1 compliant.

Battery

This device is offered in two different models depending upon the battery provision:

  • Standard – Achieving 8 years* of autonomy when transmitting information collected from 25 meters.
  • Plus – Achieving 8 years* of autonomy when transmitting information collected from 50 meters.

*One daily transmission in average coverage levels.