AMR (Automatic Meter Reading) System

OVERVIEW - AMR System AMR Definition: AMR stands for Automatic Meter Reading. AMR is the remote collection of consumption data from customers' utility meters. AMR can use power-line, telephony, RF, cable communication technologies. AMR provides electric, water, gas and heat utilities the opportunity to increase operational efficiency, improve customer service, reduce data-collection costs and quickly gather critical information that provides insight to company decision-makers AMR Communication Mode 1. Uplink (Concentrators to Central PC): GPRS/GSM/CDMA PSTN 2. Downlink (Concentrator to Meters) Power-Lines Cable - RS485, Can-Bus, M-Bus, ¡­ RF CATV LAN AMR mainly depends on downlink communication channels PLC IC - PLC Technology Power Line Characteristics Severe Interference Noise Low and time-varying Impedance Communication Signal Attenuation Complicated Network Structure Solutions of the Problems Spread Spectrum Communication (SSC) Digital Signal Processing Optimal Frequency Selection Effective Signal Coupling Up to date Relay-Route Arithmetic Perfect Data Communication Protocols JAZ® AMR System - Components JAZ® AMR System consists of four parts: 1) Watt-hour meters with two-way communication Single phase or three-phase Including multi-user kWh meter, electric display unit 2) Concentrator 3) Automatic meter reading software 4) PLC modem and HHU for manufacture or debug Features Use existing power lines as communication channel, no need for extra cabling Reduce data-collection costs, increase operational efficiency, improve customer services Remotely and quickly access consumer's meter data Real time monitor consumer's meter operation Process and report consumer's data Analyzing power consumption of an individual consumer or all Tamper detection and remotely shutoff control Freezing consumers' power consumption, analyzing system losses Providing tariff and billing System is reliable, stable and robust