AUTOMATIC METER READING
By
XXXX(12XXXXXXX)
ECE
Guide:XXXXX,XXXXX
Associate Professor
What is AMR?
Automatic meter reading
This saves employee trips, and means that billing can
be based on actual consumption rather than on an
estimate based on previous consumption
Benefits Of AMR
Electrical company benefits:• Smart automated processes instead of manual work.
• Customized rates and billing dates.
Customer Benefits:
• Precise consumption information.
• Clear and accurate billing.
Different Types of AMR Technologies
Handheld
Touch based
Mobile
Fixed network
Radio frequency network
RF BASED AMR
Originally AMR devices just collected meter readings electronically &
matched them with accounts.
As technology has advanced, additional data could then be captured,
stored and transmitted to the main computer and often the metering
devices could be controlled remotely.
BLOCK DIAGRAM OF TRANSMITTER UNIT
WORKING OF TRANSMITTER UNITThe data is send from the transmitter unit to the receiver
unit via RF channel.
The pulse generator also having a AT89C2051
microcontroller.
In transmitter unit we also use the four seven segment
display, which shows the reading of the meter.
Each seven segment display has 7 LEDs
BLOCK DIGRAM OF RECEIVER UNIT
WORKING OF RECEIVER UNIT
The transmitted data is received by the antenna situated at the receiver
unit.
After receiving the signal the data is given to the pin no.8 of the AM
receiver.
The output the AM receiver is given to the decoder HT12D.
When the VT=1, the transistor is turn on and a high signal appear at
the collector terminal
Due to which the LED which is connected to the collector terminal is
glow up and emit the light.
APPLICATIONS
Wireless M-Bus
Home control and industrial automation
Street lighting (TinyMesh supporting up to 255 hops)
ADVANTAGESSmart automated processes instead of manual work
Accurate information from the network load to optimise
maintenance and investments
Customized rates and billing dates.
Streamlined high bill investigations.
Detection of tampering of Meters.
DISADVANTAGES
Communication patterns between levels can be
complex.
Algorithm complexity can be substantial.
FUTURE SCOPE
Originally AMR devices just collected meter readings
electronically and matched them with accounts.
This can include events alarms such as tamper, leak
detection, low battery, or reverse flow.
Many AMR devices can also capture interval data, and log
meter events.
CONCLUSION
Thus I have studied RF based automatic meter reading used
in different places. I got that this technology is very useful
in present and future demand.
What was once a need for monthly data became a need for
daily and even hourly readings of the meters.
Thank You
Quires..?
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