A12

1. ENERGY METER READING WITH LOAD CONTROL USING
GSM
MALLA REDDY ENGINEERING COLLEGE
Hyderabad
Department of Electronics And Communication Engineering
2022-2023
INTERNAL GUIDE: REPRESENTED BY:
Dr. Thumu Srinivas Reddy B.Sai Dharani (20J45A0403)
Assoc Professor E.Sindhu (20J45A0405)
ECE Department G.Nanda Krishna Sai(20J45A0403)
N.Sai Teja (18J41A04A6)

2. CONTENT:
 OBJECTIVE
 INTRODUCTION
 EXISTING SYSTEM
 PROPOSED SYSTEM
 BLOCK DIAGRAM
 SCHEMATIC
ARCHITECTURE
 PRINCIPLE AND
WORKING
 HARDWARE
REQUIREMENTS
 SOFTWARE
REQUIREMENTS
 ADVANTAGES
 RESULT
 FUTURE SCOPE

3. OBJECTIVE:
The measurement of the energy consumed by residential and commercial buildings by
utility provider is important in billing, control and monitoring of the usage of energy.
Traditional metering techniques used for the measurement of energy are not convenient
and is prone to different forms of irregularities.
These irregularities include inaccuracies in billing due to human error, energy theft,
loss of revenue due to unwanted usage of power and so on.
This research study proposed the design and construction of a microcontroller based
electric energy metering system using the Global System for Mobile communication
(GSM) network.
So here we are designing this system which provides solution to the irregularities posed
by the traditional metering technique by allowing the utility provider have access to
remote monitoring capabilities, full control over consumer load, and remote power
disconnection in the case of energy theft.

4. INTRODUCTION:
The technology of e-metering(Electronic metering) has gone through rapid
Technological advancements and there is increased demand for a reliable and efficient
Automatic Meter Reading(AMR) system.
This project is aimed to design of a simple low cost wireless GSM energy meter and its
associated web interface, for automating billing and managing the collected data
globally.
The proposed system replaces traditional meter reading methods and enables remote
access of energy provider.
Also they can monitor readings regularly without the person visiting each house.
A GSM based wireless communication module is integrated with electronic energy
meter of each entity to have remote access over the usage of electricity.

5. EXISTING SYSTEM:
Now a days energy meter reading premise and takes the reading manually
then issues the bill.
In manually human error possible and not provide reliable meter reading.
An energy meter is a device which is used to measure the consumption of
energy of any residence or other industrial establishment.
In conventional metering system to measure electricity consumption the
energy provider company hire a person who visit each house and record
the reading manually.

6. PROPOSED SYSTEM:
In this system to explore the new possibilities for the next generation
Automatic meter reading whose goal is to collect the meter reading
automatically through GSM interface.
Automation ranges from connecting meter through an MAX232 interface
to GSM module for transmitting the meter measurements.
Where in this system we are not only measuring the meter but also
through GSM we can control the load and reduce usage of the current in
our houses.

7. BLOCK DIAGRAM:
Power
Supply
Energy
meter
GSM
modem
Max-232
8
0
5
1
LCD
Display
Relay
Load
Loads

8. SCHEMATICARCHITECTURE:

9. PRINCIPLEAND WORKING:
Power meter reading mainly works on the principle of GSM.
 A GSM modem provides the communication interface. It transports device protocols
transparently over the network through a serial interface.
A GSM modem is a wireless modem that works with a GSM wireless network. This
GSM Modem can accept any GSM network operator SIM card and act just like a
mobile phone with its own unique phone number.
The process of energy meter reading with load controlling basically starts with an
observation of load which is connected to the meter in the form of units.
In this process we use Relay to ON/OFF the load.
Once the load is ON using the relay, then Microcontroller determines whether the
load units are crossed/power cutting off due to no payment/power theft.
Then above information would be shared to the LCD using GSM principle.

10. HARDWARE COMPONENTS:
1. POWER SUPPLY
2. Microcontroller AT89S52
3. GSM
4. LCD
5. RELAY
6. MAX232
7. Energy Meter

11. MICRO CONTROLLER (AT89S52):
The AT89s52 is a low-voltage, high-performance CMOS 8-
bit microcomputer with 8K bytes of Flash programmable
memory.
The device is manufactured using Atmel's high density
nonvolatile memory technology and is compatible with the
industry-standard MCS-51 instruction set.
The on chip flash allows the program memory to be
reprogrammed in system or by a conventional non volatile
memory programmer. By combining a versatile 8-bit CPU
with Flash on a monolithic chip, the Atmel AT89s52 is a
powerful microcomputer.
which provides a highly flexible and cost-effective solution
to manyembedded control applications.

12. POWER SUPPLY:
The power supplies are designed to convert high voltage AC mains electricity to a
suitable low voltage supply for electronic circuits and other devices.
A power supply can by broken down into a series of blocks, each of whichperforms a
particular function.
A DC power supply which maintains the output voltage constant irrespective of
ACmains fluctuations or load variations is known as "Regulated DC Power Supply".
The 5V regulated power supply system as shown below

13. GSM-Global System for Mobile communication
• The term GSM usually means the GSM standard and
protocols in the frequency spectrum around 900MHZ/
850/1800/1900MHZ.
• Which can be used not only to access the internet, but also
fororal communication and for SMS.
• A GSM modem is a specialized type modem which
accepts a sim card and operates over a subscription to a
mobile operator like mobile phone.

14. ENERGYMETER:
An electricity meter, electric meter, electrical meter, or
energy meter is a device that measures the amount of
electric energy consumed by a residence, a business, or
an electrically powered device.
Electric utilities use electric meters installed at
customers' premises to measure electric energy delivered
to their customers for billing purposes.
Electric meters are typically calibrated in billing units,
the most common one being the kilowatt hour.

15. MAX232:
The MAX232 is an integrated circuit that
converts signals from an RS-232 serial port to
signals suitable for use in TTL compatible
digital logic circuits.
The MAX232 is a dual driver/ receiver and
typically converts the RX, TX, CTS and RTS
signals.
When a MAX232 IC receives a TTL level to
convert, it changes a TTL level to convert, it
changes a TTL Logic 0 to between +3
and+15v, and changes TTL Logic 1 to
between -3 to -15v, and vice versa for
converting from RS232 to TTL.

16. RELAY:
Relays are simple switches which are operated both
electrically and mechanically. Relays consist of an
electromagnet and also a set of contacts.
The switching mechanism is carried out with the help of
the electromagnet.
There are also other operating principles for its working.
But they differ according to their applications. Most of
the devices have the application of relays.
The power source is given to the electromagnet through a
control switch and through contacts to the load.When
current starts flowing through the control coil, the
electromagnet starts energizing and than intensifies
the magnetic field.

17. LIQUID CRYSTALDISPLAY(LCD):
Liquid crystal displays (LCD s) have
materials which combine the properties
of both liquids and crystals.
Most common LCDs connected to the
microcontroller is 16*2.
This means 16 characters
per line by 2 lines.
LEDs have a large and varying set of
use cases for consumers and businesses,
as they can be commonly found in
smartphones, televisions, computer
monitors and instrument panels.

18. SOFTWARE REQUUIREMENTS:
KEIL IDE
EMBEDDED C
PROTEUS

19. KEILVISION-3:
It is possible to create the source files in a text editor such as Notepad, run the
Compiler on each C source file, specifying a list of controls, run the Assembler on
each Assembler source file, specifying another list of controls, run either the Library
Manager or Linker (again specifying a list of controls) and finally running the Object-
HEX Converter to convert the Linker output file to an Intel Hex File.
Once that has been completed the Hex File can be downloaded to the target hardware
and debugged.
Unless you have to use the tolls on the command line, the choice is clear.

20. PROTEUS:
The Proteus Design Suite is a proprietary software tool suite used primarily
for electronic design automation.
The software is used mainly by electronic design engineers and technicians to
create schematics and electronic prints for manufacturing printed circuit boards.
Proteus is used to simulate, design and drawing of electronic circuits. It was invented
by the Lab center electronic. By using proteus you can make two-dimensional circuits
designs as well.
Proteus software is an open source software.
Proteus is easy to use suite of tools for professional PCB design.

21. EMBEDDED C:
Embedded C is a set of language extensions for the C programming language by the C
standards.
Embedded C programming requires non standard extensions to the C language in the
order to support exotic features such as fixed point, arithmetic, multiple distance
memory banks and basic input output operation.
It includes number of features not available in normal C.

22. ADVANTAGES:
Collects meter readings electronically.
This system doesn’t have any moving mechanism, so it
would give accurate reading of energy consumption.
No issue of power thief.
Consumer can easily get awareness about their energy
consumption in real value so they can control their energy
consumption.
Smart Energy meter has User Interface when consumer
can easily check their energy consumption by Mobile /
Computer.

23. RESULT:
The main object of the project is to develop smart energy meter is not only measure
the consumer’s power consumption but also to enable and support real consumption
according to consumer, so meter reader don’t need to visit each customer.
By this project we can control our home appliances and also we can avoid the
unnecessary use of electricity by giving the response to microcontroller. the Team

24. FUTURE SCOPE:
The concept can further be extended by integrating a RFID smart card where in each
card is provided to automatically recharge the amount and send the same information
via GSM module. To the respective phone number stored.

25. REFERENCES :
www.national.com
www.atmel.com
www.microsoftsearch.com
www.geocities.com