1. 1. PASSWORD BASED DOOR LOCKING SECURITY SYSTEM PRESENTED BY: Anuj Kumar Gupta (04270102811) Prachi Sharma (04570102811) Surabhi (07770102811) Sahil Pandey (07970102811)
2. 2. CONTENT OBJECTIVE INTRODUCTION COMPONENTS USED CIRCUIT DIAGRAM SOFTWARE DESCRIPTION ADVANTAGES DISADVANTAGES FINAL PROJECT FUTURE SCOPE CONCLUSION REFERENCES
3. 3. OBJECTIVE Increase the security level to prevent an unauthorized unlocking of the door. Give the flexibility to the user to change or reset the password in case the user forgets that combination. Lock the door by using password. To give user more secure yet cost-efficient way of door locking system.
4. 4. INTRODUCTION Since the main intension of this project is to design a security Door locks system. In order to fulfill this application there are few steps that has been performed i.e. Designing the power supply for the entire circuitry. Selection of microcontroller that suits our application. Selection Key pad. Selection of DC motor. Selection of buzzer according to the requirement. Complete studies of all the above points are useful to develop this project.
5. 5. BLOCK DIAGRAM 8052 MICROCONTROLLER LCD BUZZER POWER SUPPLY KEYPAD MOTOR
6. 6. DESCRIPTION OF BLOCK DIAGRAM Block Diagram consist of following blocks: Keypad: It is an input device that helps to enter a code to open the door. This block gives the entered code signals to the microcontroller. Buzzer and LCD: These are the final indicating devices for displaying the information and alarming. DC motor: It moves the door opens and closes the door. Relay: It drives this motor by receiving control signals from the microcontroller.
7. 7. COMPONENTS USED QUANTITY REFERENCES VALUE 3 Capacitors 1 C1 1000u 1 C2 100u 1 C3 10u 3 Integrated Circuits 1 U1 AT89S52 1 U2 7805 1 U3 ULN2003A Transistors 1 Q1 BC548
8. 8. QUANTITY REFERENCES VALUE 2 Diodes 2 D1, D2 1N4007 8 Miscellaneous 3 B 1, GATE, RL 1 12 V 1 BUZ 1 BUZZER 1 CONTRAST 100 1 LCD 1 LM016L 1 TR 1 TRAN-2P3S 1 X 1 CRYSTAL
9. 9. MAJOR COMPONENT S USED
10. 10. MICROCONTROLLER - AT89S52 4.0V to 5.5V Operating Range 256 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/Counters Eight Interrupt Sources Low-power Idle and Power-down Modes
11. 11. LCD LCD is a dot matrix liquid display crystal that displays alphanumeric, Kana(Japanese) characters and symbols. Internal refresh is provided. All the functions required for dot matrix LCD drive are internally provided. Built-in oscillator circuit.
12. 12. BUZZER Operates using piezoelectric effect. Sound emitter may be extremely low or ear piercing. Driven by low voltages and currents. Elements are made from crystals, such as quartz or Rochelle salts
13. 13. DC MOTOR It is a machine which converts electrical energy into mechanical energy The input of a DC motor is current/voltage and its output is torque (speed) Motor uses 9V battery, connected to the switching relay
14. 14. VOLTAGE REGULATOR-LM7805 Three-terminal positive regulator Used with external components to obtain adjustable voltages and currents Used for thermal overload protection Output current to 1.5 A Output voltage to 5V
15. 15. ULN2003A Consists of seven NPN Darlington pairs Includes output flyback diodes Application is to drive relays, lamp and LED displays or stepper motors 500 mA rated collector current (single output) 50 V output
16. 16. CIRCUIT DIAGRAM
17. 17. SOFTWARE DESCRIPTION PROTEUS SOFTWARE is used for the simulation of circuit CODING USED: Embedded C Language with the implementation of Keil Software USB programmer Avrupro + was used to burn the code in microcontroller Progisp Flash tool
18. 18. ADVANTAGES No keys to be lost, stolen or occupied. Can be locked using keypad. Automatic door opening . Gives an indication for unauthorized entry. Totally cost efficient.
19. 19. DISADVANTAGES Currently if the personal identification number is somehow forgotten the system could not be accessed. Powered by electricity may not function properly in the case of a power failure.
20. 20. FINAL PROJECT
21. 21. Project being initiated
22. 22. Step 1: The project is connected to the main supply
23. 23. Step 2: The Door Security System will be displayed
24. 24. Step 3: Enter the password
25. 25. Step 4: Confirm the password
26. 26. Step 5: Now lock is activated enter the correct password to open the door, with the display LOCK OPEN
27. 27. TESTING: In case wrong password is entered for 3 trials, buzzer will start, with the display SORRY NO MORE TRIALS
28. 28. FUTURE SCOPE We can send this data to a remote location using mobile or internet. We can add fingerprint sensor so entry will be allowed for the authorized person using their fingerprints. We can add fire, wind and LPG sensors so that in case of accident, the doors will automatically open.
29. 29. CONCLUSION PASSWORD BASED DOOR LOCKIING SECURITY SYSTEM is used in the places where we need more security. It can also used to secure lockers and other protective doors. The system comprises a number keypad and the keypads are connected to the 8 bit microcontroller AT89S52. The microcontroller continuously monitor the keypad and if somebody enters the password it will check the entered password with the password which was stored in the memory and if it they are same then the microcontroller will switch on the corresponding device. The system will allow the person who knows the password and it will not allow who dont know the password.
30. 30. REFERENCES Book References: 8051 Reference Manual, TICO Institute of Embedded Technology Fundamentals of Embedded Software: Where C and Assembly Meet by Lewis Daniel Web References: www.atmel.com www.electronicshub.org www.keil.com http://www.edgefxkits.com/remote-password- operated-load-control-by-android-applications http://www.edgefxkits.com/password-based-circuit- breaker