Automatic Meter Reading Power Guard

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 : HighExpensive fee : 1 line/customerStabled wireless network High basic investment but wireless network is stable. Suitable for HV customers CATV Initial invested cost : HighExpensive fee : 1 line/customerDifficulty to assign fixed IP to every customerCATV network area only Initial investment required too muchLimitation of area to be implemented: Ended at the exemplary service level RF Initial invested cost : LowEconomical Fee : 200 customers/lineFrequency split conflict and fee problem With low invested cost, good for LV customersBut unstable network Frequency split and fee are prerequisite PLC Initial invested cost : LowestEconomical Fee : 200 customers/line With low invested cost, good for LV customersExemplary 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 ServerEssential 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/WNMS 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 unitsRS-232C Baud rate: 2400 ~ 9600bps Wireless communication(COMA)Packet (modem?FEP)-Metering data transmit-Transmit metering units status signal and alarmM 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.