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PREPAID ENERGY METER
USING SMART CARD
Guided by
Nisha G Poothullil
Assistant Professor
Department of EEE
Govt Engg College...
INTRODUCTION
 To design and develop a microcontroller based prepaid
energy meter with serial data transmission so that a
...
BLOCK DIAGRAM
POWER SUPPLY
ENERGY METER SECTION
RECHARGE SECTION
COMPONENTS
USED
HARDWARES:
 Micro Controller
 Power Supply
 Energy Meter
 Opto-coupler
 Relay
 LCD
 Smartcard(EEPROM)
MICROCONTROLLER PIC16f877A
Low cost
Wide availability
Low power
consumption
Pin description
MICROCONTROLLER PIC16F873A
ENERGY METER  An energy meter is a device
that measures the amount
of electrical energy consumed
by a residence, business...
LCD DISPLAY LM016L
 The LM016L LCD displays
alphanumeric, characters, and
symbols
 Can be configured to drive a
dot-matr...
VOLTAGE REGULATOR LM7805
 LM7805 is a voltage
regulator integrated circuit.
 It is a member of 78xx series
of fixed line...
VOLTAGE REGULATOR LM7812
 LM7812 is a voltage
regulator integrated circuit.
 It is a member of 78xx series
of fixed line...
CRYSTAL OSCILLATOR
 Crystal oscillator is an electronic
oscillator that uses the
mechanical resonance of a
vibrating piez...
OPTOCOUPLER (MCT2E)
 Gallium Arsenide Diode
Infrared Source Optically
Coupled to a Silicon npn
Phototransistor
 High-Vol...
EEPROM 24C04
 Low voltage and standard
voltage
operations.
 Operating ambient
temperature:- -40 to +85
degree celcius
 ...
RELAY 20A/230V
 electromagnetic switch
operated by a relatively
small electric current that
can turn on or off a much
lar...
Circuit Diagram- Main section
FLOW CHART
Flow chart – Main section
Flow chart – Recharge section
WORKING-MAIN SECTION
 When the switch is made on, the supply reaches the microcontroller
 It then checks for the balance...
WORKING- RECHARGE SECTION
 the smartcard is connected with the recharge section to recharge
 The incrementing switch and...
CONCLUSION
 In this project work we have studied and implemented a complete
working model of a prepaid energy meter using...
REFERENCE
1. E Balaguruswamy: Programming in ANSI C, Mc Graw Hill, fifth edition: 2011
2. J. B. Gupta: Electronic devices ...
Websites
1. www.engineersgarage.com
2. www.forum.allaboutcircuits.com
3. www.learningaboutelectronics.com
4. www.maximinte...
Thank you
PREPAID ENERGY METER USING  SMART CARD
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PREPAID ENERGY METER USING SMART CARD

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THIS IS A SLIDE SHOW OF B TECH MINI PROJECT DONE BY 4 STUDENTS OF ELECTRICAL AND ELECTRONICS DEPARTMENT OF GOVT. ENGG COLLEGE THRISSUR

Published in: Engineering
  • where can i get the codes for this project..?
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  • where are the codes for simulations? or it is just mini pro with no simulation
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PREPAID ENERGY METER USING SMART CARD

  1. 1. PREPAID ENERGY METER USING SMART CARD Guided by Nisha G Poothullil Assistant Professor Department of EEE Govt Engg College Thrissur Group Members Ananth C Jayan Aswin Murali Athulvinoy P P Basil Mohamed P
  2. 2. INTRODUCTION  To design and develop a microcontroller based prepaid energy meter with serial data transmission so that a consumer can plan accordingly to reduce the consumption as per his budget.  The Meter section is designed using Microcontroller (PIC 16F877A).  The recharge section is using a microcontroller(PIC 16F873A)  The purpose of this project is to overcome the drawbacks of normal electricity bill payment system and to implement a new prepaid energy meter system which has high reliability and security using SMART
  3. 3. BLOCK DIAGRAM
  4. 4. POWER SUPPLY
  5. 5. ENERGY METER SECTION
  6. 6. RECHARGE SECTION
  7. 7. COMPONENTS USED
  8. 8. HARDWARES:  Micro Controller  Power Supply  Energy Meter  Opto-coupler  Relay  LCD  Smartcard(EEPROM)
  9. 9. MICROCONTROLLER PIC16f877A Low cost Wide availability Low power consumption Pin description
  10. 10. MICROCONTROLLER PIC16F873A
  11. 11. ENERGY METER  An energy meter is a device that measures the amount of electrical energy consumed by a residence, business, or an electrically powered device.  Electric meters are typically calibrated in billing units, the most common one being the kilowatt hour.  They are broadly classified in to electromechanical meters and electronic meters.
  12. 12. LCD DISPLAY LM016L  The LM016L LCD displays alphanumeric, characters, and symbols  Can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8- bit microprocessor.  Wide range of instruction functions  Low power operation (supports: 2.7 to 5.5V)
  13. 13. VOLTAGE REGULATOR LM7805  LM7805 is a voltage regulator integrated circuit.  It is a member of 78xx series of fixed linear voltage regulator ICs  LM7805 provides +5V regulated power supply  Internal thermal overload protection  No external components required which makes them easy to use and economical
  14. 14. VOLTAGE REGULATOR LM7812  LM7812 is a voltage regulator integrated circuit.  It is a member of 78xx series of fixed linear voltage regulator ICs  LM7812 provides +12V regulated power supply  Internal thermal overload protection  No external components required which makes them easy to use and economical
  15. 15. CRYSTAL OSCILLATOR  Crystal oscillator is an electronic oscillator that uses the mechanical resonance of a vibrating piezoelectric crystal to create an electrical signal with very precise frequency  This frequency is used to provide a stable clock signal(CLK frequency 20MHz )  Quartz crystal is used as the piezoelectric resonator because of their greater mechanical strength
  16. 16. OPTOCOUPLER (MCT2E)  Gallium Arsenide Diode Infrared Source Optically Coupled to a Silicon npn Phototransistor  High-Voltage Electrical Isolation 1.5-kV, or 3.55-kV Rating  High Direct-Current Transfer Ratio
  17. 17. EEPROM 24C04  Low voltage and standard voltage operations.  Operating ambient temperature:- -40 to +85 degree celcius  Internally organised 512 X 8 (4K) memory  Two wire serial interface
  18. 18. RELAY 20A/230V  electromagnetic switch operated by a relatively small electric current that can turn on or off a much larger electric current.  Relays control one electrical circuit by opening and closing contacts in another circuit.  The main part of an electromagnetic relay is a coil of wire that becomes a temporary magnet when current flows through it.
  19. 19. Circuit Diagram- Main section
  20. 20. FLOW CHART Flow chart – Main section
  21. 21. Flow chart – Recharge section
  22. 22. WORKING-MAIN SECTION  When the switch is made on, the supply reaches the microcontroller  It then checks for the balance in the smart card, if the there is balance in it the load gets connected to the supply.  The load gets energy until the amount stored in the smartcard decreases to zero  Then the microcontroller gives the signal to relay for disconnecting the load from supply.  LCD shows the customer to recharge.  The smartcard can be used again after recharging
  23. 23. WORKING- RECHARGE SECTION  the smartcard is connected with the recharge section to recharge  The incrementing switch and decrementing switch is used to set the amount  After setting the amount it is loaded to the smartcard by pressing recharge switch  The smartcard can be connected to the meter section for further use.
  24. 24. CONCLUSION  In this project work we have studied and implemented a complete working model of a prepaid energy meter using a PIC microcontroller.  The traditional billing system has a lot of drawbacks such as energy theft, slowness, requirement of manpower which can be avoided by this  The reason for using these microcontrollers is its high performance, power efficiency or design flexibility etc.  The recharge section is very much user friendly since he can recharge for the required amount as per his budget.  This LCD gives the consumed power, balance amount which are essential for awareness about energy consumption.
  25. 25. REFERENCE 1. E Balaguruswamy: Programming in ANSI C, Mc Graw Hill, fifth edition: 2011 2. J. B. Gupta: Electronic devices and circuits,PHI publications, second edition :2013 3. A. Anand Kumar : Fundamentals of digital circuits, Pearson Education:2012 4. Donald A Neamen : Electronic circuits Analysis and Design, TATA McC Graw HILL,third edition: 2007 5.Muhammed Ali Mazidi : The 8051 microcontroller and embedded systems,Pearson Education, second edition:2011
  26. 26. Websites 1. www.engineersgarage.com 2. www.forum.allaboutcircuits.com 3. www.learningaboutelectronics.com 4. www.maximintegrated.com 5. www.ti.com 6. www.ijcaonline.org 7. www.microchip.com 8. www.electrosome.com 9. www.instructables.com
  27. 27. Thank you

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