Tuesday, March 6, 2012

Automatic Meter Reading via Cellular Networks


Automatic Meter Reading via Cellular Networks
Automatic meter reading, or AMR, is the technology of automatically collecting consumption, diagnostic, and status data from energy metering devices (gas, electric) or water meter and transferring that data to a central database for billing, troubleshooting, and analyzing.
1. Diagram
They are major three topologies for AMR systems by using cellular networks:
1. Each meter is connecting to F2103 smart GPRS modem via RS232 by using CSD (data call); 
 2. Each meter is connecting to a F2103 smart GPRS modem via RS232 by using GPRS (meter control the modem via AT commands);
 3. Each meter is connecting to a Data Concentration Units (DCU), which may support up to 32 meters, and each DCU is connecting to a F2103 Pro serial to GPRS gateway via RS485 by using GPRS (transparent transmit serial data to billing center automatically).



2. Real Site




























Cellular IP Modem
    1-port RS232/485 Cellular IP Modems
流程图: 可选过程: Ø DB9 male connector for RS232/RS485 serial port
Ø Always online
Ø TCP/IP protocol stack
Ø Standard AT Commands
Ø Transparent data transmission
Ø Several ways to trigger IP Modem to be online
Ø Support Multi OS, WINDOWS, LINUX, SCO UNIX, etc.
 
Ø  DB9 male connector for RS232/RS485 serial port
Ø  Always online
Ø  TCP/IP protocol stack
Ø  Standard AT Commands
Ø  Transparent data transmission
Ø  Several ways to trigger IP Modem to be online
Ø  Support Multi OS, WINDOWS, LINUX, SCO UNIX, etc.
Overview                                                       
The Cellular IP Modem provide secure, high speed, reliable wireless internet connection for customers, which are all embedded real time operating system, and integrated with common protocols, such as TCP/IP/UDP, etc. It is quite convenient for you trigger IP Modem to be online by audio, SMS and data. In addition, they all support double or several data centers for data collection.

All devices are ideal for applications, such as PLC based automation, Automatic Meter Reading, Power/water supply/street light remote monitoring and control, weather data acquisition, environmental protection, information display board, flood alarm, hydrological analysis, etc.
Specifications                                                     
Wireless Specification
Model No.
F2403
F2503
F2603
Cellular network
WCDMA/HSPA
TD-SCDMA
CDMA2000 1X EVDO


Cellular interface
UMTS/WCDMA/HSDPA/HSUPA 850/1900/2100MHz,
850/900/1900/2100MHz(optional),GSM850/900/1800/1900MHz,
GPRS/EDGE CLASS 12.
TD-SCDMA/HSDPA/HSUPA 2010-2025MHz,
1880-1920/2010-2025MHz
(optional).
GSM850/900/1800/1900MHz,
GPRS/EDGE CLASS 12
CDMA2000 1X EVDO Rev A 800MHz,
800/1900MHz(optional),450MHz (optional).
CDMA2000 1xRTTIS-95 A/B


Model No.
F2103
F2203
F2303
Cellular network
GPRS
CDMA
EDGE


Cellular interface
EGSM900/GSM1800MHz,
GSM850/900/1800/1900MHz(optional).
Compliant to GSM phase 2/2+, GPRS class 10, class 12(optional).
CDMA2000 1xRTT 800MHz,
800/1900MHz(optional), 450MHz(optional)
GSM850/900/1800/1900MHz,Modulation and Coding Scheme MCS 1-9.
GPRS/EDGE Class 12

Interface
RS232/RS485 serial port(DB9 male), rates: 110~230400bits/s
Antenna interface: standard SMA female interface, 50 ohm
SIM/UIM interface: standard 3V/1.8V user card interface
Power interface: standard 3-PIN power jack

Status LED
 “Power”, “ACT”, “Online”

Power Requirements
Standard power supply: DC 12V/0.5A
Power range: DC 5~35V
Power comsumption: <250mA@12V (Data communication mode)
                   <10mA@12V(Idle mode)

Envronmental Limits
Operation temperature:-25 to 65ºC(-13 to 149ºF )
Storage temperature: -40~+85ºC(-40 to 185ºF )
Humidity: 95% (unfreezing)

Software Function
1. Design with standard TCP/IP protocol stack
2. Adopt smart online keeping technology to make sure that IP MODEM is always online
3. Support RSA and RC4 encryption arithmetic
4. Support APN/VPDN
5. Support transparent data transfer and protocol conversion. Support multi work modes
6. Support dynamic domain name(DDNS) and IP access to data center
7. Support double data centers, one main and another backup
8. Support multi data centers, It can support 5 data centers at the same time
9. Support TCP/UDP server,support multi TCP/UDP client connection
10. Support multi online trigger ways, including SMS, audio and data. Support link disconnection when timeout.
11. Support SMS backup and emergency report
12. Support TCP keepalive
13. Support hardware and software WDT
14. Reporting the status of data transfer
15. Standard AT command interface
16. Support common MODEM function
17. Support telnet function
18. Support remote configure and control
19. Easy to upgrade firmware by COM
20. Support multi OS, such as WINDOWS, LINUX, SCO UNIX etc.

Enhanced function:(optional)
1. Support low-consumption mode, including sleep mode, scheduled online/offline mode, scheduled power-on/power-off mode
2. Support remote firmware upgrade
3. Support remote configure by SMS

Physical Characteristics
Housing: metal
Weight: 205±5g
Dimension: 91x58.5x22 mm

Warranty
Warranty Period: 1 year

Dimension and Interface


Ordering Information                                           
Aavailable Models
F2103: GPRS IP Modem
F2203: CDMA IP Modem
F2303: EDGE IP Modem
F2403: WCDMA/HSDPA IP Modem
F2503: TD-SCDMA IP Modem
F2603: CDMA2000 1X EVDO IP Modem
Note: frequency band need to be confirmed before placing an order.

Package Checklist
1. IP modem
2. SMA male antenna
3. Power adapter
4. RS232 or RS485 cable
5. Document and Software CD
6. Warranty Card

Contact Info
Vincent wang
http://www.four-faith.com

Tel:+86-592-5907276

Mobile:+0086 15959246428

Fax:+86-592-5912735

MSN:bartilozy@hotmail.com     

Skype:vincentfourfaith

Yahoo:vincentfourfaith@yahoo.com