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AMI Smart Meter Reading Solution V200R010C10 Planning and Design Guide

This document describes the overall and detailed design of functions and services in the AMI Smart Meter Reading Solution.
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DCU Design Principles

DCU Design Principles

The AR531GPe-U-H and AR532 can be used as Data Concentrator Units (DCUs), and they support different meters. You need to select DCUs based on the onsite situation and customer requirements. Table 4-1 describes DCU design principles and selection factors.
Table 4-1  DCU design principles and selection factors




Power grid environment

High-density residential communities

Centralized installation of smart meters

Smart meters are deployed in a centralized manner. If cost reduction or cabling is required, select PLC or RF. In this situation, the DCUs must support PLC or RF.

Distributed installation of smart meters

There is a high density of smart meters, but smart meters are sparsely distributed. This causes great difficulty in cabling.
  • In a short distance, a DCU can use PLC or RF to communicate with smart meters. If PLC is used, you must select the DCUs that support PLC. If RF is used, you must use the DCUs that support RF.
  • In a long distance where PLC communication effect is not good, GRPS meters directly communicate with the DCP, so DCUs are not required.

Sparsely distributed households

When the distance between households is long, the network construction cost is high and the interference is serious. Use GPRS communication without using DCUs.

Industrial users

In an industrial area, there are few users and the cabling cost is high. The distance between smart meters and transformers is long, so PLC is inapplicable. In this case, stable and highly efficient GPRS meters are used to directly communicate with the DCP, without using the DCUs.

Transformer substation

In a transformer substation, highly efficient, reliable, and stable communication is required. PLC can be used. In this situation, the DCUs must support PLC.

Commercial users

There are many users, the environment is complex, the coverage is wide, and smart meters are centrally installed and sparsely distributed. In this situation, communication modes can be flexibly selected and different models of DCUs can be used accordingly.


Communication across transformers

PLC allows communication between smart meters and DCUs connected to the same transformer. To implement communication between smart meters and DCUs across transformers, select RF. In this situation, the DCUs must support RF.

Outdoor installation

If many smart meters are required in an area but are installed outdoors in a distributed manner, use RF to prevent signals from being blocked. In this situation, the DCUs must support RF.

Updated: 2019-03-07

Document ID: EDOC1100069579

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