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Smart metering data collection on a private local network: how does it work?

1. Overview and Definition

Smart metering data collection means reading many meters - water, electricity, gas - automatically instead of by site visits. Where meters cluster in districts, plants or campuses, a private local mesh can collect readings without a public-network subscription for every meter point.

2. Standard and Requirements

Metering projects require support for installed meter interfaces, dependable scheduled polling, capacity for hundreds of points, and local data control. The KF-DTU Gen1 supports Modbus RTU/TCP transparent transmission over RS485 and Ethernet, with one network carrying 50+ nodes and 500+ sensors over Wi-Fi HaLow (IEEE 802.11ah).

3. Core Structure

Meters connect by their existing RS485 wiring to the nearest DTU node or micro terminal (up to 8 x 2.4G micro terminals per DTU). Nodes mesh toward a local concentrator or gateway where readings are aggregated for the billing or energy-management platform chosen by the meter maker or integrator.

4. Performance and Deployment Notes

Sub-1 GHz signals pass through building structures better than 2.4 GHz links, and a single hop can pass through 4 floors, which helps in meter rooms and shafts. Bandwidth of 2/4/8 Mbps is far above metering payload needs, leaving headroom for dense polling schedules. Keep the concentrator position central to limit hop counts.

5. Buyer FAQ

Which meters are covered? Water, electricity and gas meters with RS485 Modbus or Ethernet interfaces, per your meter model check. Does each meter need a SIM? No, collection runs on the private local network. Who buys this? Smart-meter makers and utilities integrators.

6. Supplier Capability

Simiai Technology supports meter makers and integrators by RFQ: share meter models, counts and site layout for a node and concentrator plan. Samples via RFQ allow a building or district pilot before wider rollout. Contact details are on trade and contact.

7. Conclusion

A private HaLow mesh gives metering projects local control and subscription-free collection at district scale, using the meters already specified. Pilot one building or district, verify polling, then extend node by node.

Related guides

• What is a wireless DTU and how does Wi-Fi HaLow change RS485 networking?
• How to connect RS485 and Modbus sensors without cabling or public-network coverage?
• HaLow vs LoRa vs 4G DTU: how should buyers choose?