energy meter data transfer through radio frequency technology

8/4/2019 Energy Meter Data Transfer Through Radio Frequency Technology

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ENERGY METER DATA TRANSFER THROUGH

RF TECHNOLOGY

NAME REG.NUMBER

RAGHU.M 273576123

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

RAJIV GANDHI COLLEGE OF ENGINEERING AND TECHNOLOGY

PONDICHERRY-607402

JANUARY-2010


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ENERGY METER DATA TRANSFER THROUGH RADIO

FREQUENCY TECHNOLOGY

ABSTRACT-This technology consist of touch basedAMR(automatic meter reader); a meter reader carries ahandheld data collecting device with probe. The deviceautomatically collects the reading from a meter by

touching or placing the read probe in close proximity to areading coil. When a button is pressed the touchingmodule sends a interrogative signal to the meter probe tocollect the meter reading. The software in the device

matches the serial number to one in the route database,and saves the meter reading for later download a billingor data collection computer. Thus this technology pavesway to a new revolution of smart power monitoring.


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CONTENTS TO BE DISCUSSED :-

DATA TRANSFER IN POWER GRID

SCOPE OF THE PROJECT

ENERGY METER ASSEMBLY

DESCRIPTION OF TRANSMITING ANDRECEIVING CIRCUIT

OPERATION

ESTIMATED COST OF THE KIT

CONCLUSION


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DATA TRANSFER IN POWER GRID


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SCOPE OF THE PROJECT

The power generation in India during independence was

about 1,300 MW. During the year 1997 the power generatingcapacity of the nation was about 85,795MW.

In the year 2002 it became 1, 05045 MW and in the year 2008the figures increased to 1,43061MW.

It is estimated that by the end of the year 2012 the powergenerating capacity of the country would be 2, 12,000MW.

We can observe from the above figures that the developmentin the power sector which took place in last 50 years is goingto take place in next 10 years, which shows a rapid

development in the power sector .As the power generation isincreasing and will increase more and more in the near futureit is to be taken care that the distribution and consumption ofpower is managed in such a way that each and every unit ofthe power produced is utilised properly.


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Though we produce large amount of power, at avery high cost, we do not have effective

technology to control and monitor the losses. Thelosses pose a major threat in the development ofpower sector.

Power Thefts have a greater share in the lossesand it takes place in each and every sector ofdistribution and consumption such as industrial,domestic and commercial. This is because of

improper monitoring of power consumption. Theexisting method of power consumptionmonitoring is obsolete.


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The following are the reasons why the existing

system is inefficient-

Outdated technology used in energy meter

Social obligations

Human errors

Time consuming

Errors in the meter


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THE NEED OF THE HOUR

Is a technology which would enable the electricity board to

monitor the MW and MVAR consumption of any particularindustrial or agricultural, domestic and commercial concern at

any desired time, accurately. A technology which would enable

to monitor the MW and MVAR consumption through

telemetry would remove the human intervention and therebysolving all the above stated problems.

ENERGY METER DATA TRANSFER THROUGH RF is one

such technology which would revolutionize the consumptionmonitoring system.


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WORK DONE

Studied the transfer of data in the grid andinside the switchyard in NLC(TS-II).

Designed the energy meter data transfer kit

using analog meter . Tested the working range of the data

reception(20 meter for the antenna size

15.1cms). Display showing power consumption in

rupees.


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WORK TO BE DONE

Replace the analog energy meter with the

digital energy meter.

To display the MW , MVAr and power factor .

To increase the range of transmission.


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TRANSMITER CIRCUIT


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RECIVER CIRCUIT


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OPERATION

The power consumption i.e. MW and MVAR which isdisplayed in the digital energy meter goes to the optocoupler ,it contains an infrared LED and silicon photodiode with anintegrated amplifier stage.

An opto-isolator (or optical isolator, optical coupling device,optocoupler or photo coupler, or photo MOS) is a device thatuses a short optical transmission path to transfer an electronicsignal between elements of a circuit, typically a transmitter

and a receiver, while keeping them electrically isolated.


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The data is then fetched from the memory locations and sent to the

RF module. Transmitter RF module is ideal for short-range

wireless data applications where robust operation, small size and

low power consumption are required. The transmitter includes

provision for on-off keyed (OOK) and ASK modulation. the pulseis sent to the transmitter which transmits the data in the form of

signals at a frequency range of 433.92 MHz.

The receiving section is a hand held receiver. The receiver is anR.F module which demodulates the signal and sends the data to

the microcontroller. The received data is processed by the

microcontroller. The microcontroller is programmed suitably to

processes the data in the desired manner it is then stored inEEPROM (Electrically erasable programmable read only

memory). The data from the memory locations is to be displayed

which is done using an LCD driver. The LCD displays the MW

and MVAR consumption.


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LIST OF COMPONENETS

DIGITAL ENERGY METER

OPTO COUPLER

RF MODULE TRANSMITER RF MODULE RECIEVER

ANTENNA

LCD DISPLAY


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ESTIMATED COST OF THE KIT

THE ESTIMATED COST OF THE KIT WILL BE -

5000 RS


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CONCLUSIONThis technology has some salient features like-

This technology eliminates the need for the meter reader toenter the home or property.

Its increased speed of reading and has less chance of missingreading due to inaccessibility to the meter.

This technology has high accuracy in data transmission and nodata loss.

It saves a lot of time by collecting many readings in fewminutes time.

This technology can be further developed for theft detection.

This project is an important tool for detecting theft andmaintaining power consumption discipline. This technologywould save the power sector from crumbling clutches of lossesand theft. Let us cooperate and contribute our efforts towardsbringing up a smart electrical network all over the nation.


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REFERENCES

1. Radio frequency principles and applications-Albert ASmith

2. Electrical and Electronic instrumentation- A.K Shawney

3. Microprocessor and Microcontroller- Ramesh Gaonkar

4. Electronic devices and circuit- David A Bell

5. Power system analysis- C.L.Wadhwa

Websites

www.datasheetreference.com

www.wickeypedia.com

www.rfparts.com
http://www.datasheetreference.com/http://www.wickeypedia.com/http://www.rfparts.com/http://www.rfparts.com/http://www.wickeypedia.com/http://www.datasheetreference.com/

energy meter data transfer through radio frequency technology

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