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Automatic Meter Reading Power Guard

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Category: Electrical Instrument

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Country / Year Established: South Korea /

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Category	Electrical Instrument	Ingredients	-
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Product Information

AMR(Automatic Meter Reading)Power Guard

What is AMR?

Although there are a variety of industry definitions, Automatic Meter Reading (AMR) can generally be regarded as the reading of a utility meter by a means, which does not require visual inspection of the meter.

Main Features

Monthly based billing data generation
Automatic back-up and GUI function
Customized restore function
Meter reading and control database and log file management
Selective searches in variety of type
Web based information providing easy services
Authentication and authorization grant

AMR Characteristics & Appplicable Targets

Specification	Characteristics	Applications
Wireless	Initial invested cost : High Expensive fee : 1 line/customer Stabled wireless network	High basic investment but wireless network is stable. Suitable for HV customers
CATV	Initial invested cost : High Expensive fee : 1 line/customer Difficulty to assign fixed IP to every customer CATV network area only	Initial investment required too much Limitation of area to be implemented : Ended at the exemplary service level
RF	Initial invested cost : Low Economical Fee : 200 customers/line Frequency split conflict and fee problem	With low invested cost, good for LV customers But unstable network Frequency split and fee are prerequisite
PLC	Initial invested cost : Lowest Economical Fee : 200 customers/line	With low invested cost, good for LV customers Exemplary service completed, the 3rd year project in progress

Functions and Characteristics

Front End Processor(FEP)
Between modems and server, it control lots of signal and data sequentially.

Main functions

Over 3,000 digital electricity meter
Multi-thread polling
Error correction and powerful communication
Extensible hardware and software architecture
Network support (RS232C, TCP/IP)
Self initializing modems
SNMP proxy function
Packet, circuit metering function

AMR Server
Essential system for effective metering process, fast and reliable billing, electricity demand analysis by metering data.

Characteristcs	Functions
GUI interface client/server or Web-based support Self error correction and maintaining consistency Support packet, circuit data transmit and mixing type metering Support NMS, easy detecting the failure point	Receive metering data and signal processing Support six different metering unit protocols Polling by scheduling base Changeable schedule and automatic modem cycle reset Database management tool Graphical consumption analysis

NMS S/W
NMS software for AMR system do manage distributed metering units and equipment and monitoring states

Characteristcs	Functions
Traditional NAS Center based Graphic User Interface Detecting failure section points User authentication and access control Variety type of MAP Customized information function System management function	Efficiency management - Network traffic management - System efficiency management Remote control - Remote control the FEP - Remote control the wireless modems Network failure control - Auto detecting failure section point and reason, diagnosis - Failure information and alarm Static - Graphical analysis - Reporting of static data

Graphic User Interface

Wireless Modem

Characteristcs	Functions
Communication with metering units RS-232C Baud rate: 2400 ~ 9600bps Wireless communication(COMA) Packet (modem→FEP) -Metering data transmit -Transmit metering units status signal and alarm M to M (FEP→modem) -Secure the metering unit to protect illegal access -Modem register setting and confirming -Loop back test to modem -Remote wireless modem reset	Buffering of data between metering units (2400 ~ 9600bps) and wireless network (9600 ~ 19200bps) Monitoring outage and metering units status Self diagnosis, error correction and recovery - Data transfer to FEP - Hardware reset of communication module and outer facilities Protecting (in core of outrage) and remote changing wireless modem register Support TTL level connection

Power Guard

Characteristcs
An Online computerized system to collect real-time data of distribution pole transformer using wireless telecommunication network Designed to assist distribution line operational staff in predicting damage of transformers and planning staff in optimal planning of distribution line.