Description

AMR Definition: AMR stands for Automatic Meter Reading. AMR is the remote collection of consumption data from customers&#**9; 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 - RS**5, 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