A PRESENTATION ON

ACCESS CONTROL SYSTEM

PREPARED BY:Mody Devansh D. (06-ECG-03)Kukadia Pritesh M. (06-ECG-22)

GROUP NO:8

INTERNAL GUIDE:Mr. J.N. PATEL

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LIST OF CONTENTS Introduction of Project

Block Diagram

Circuit Diagram

Component Details

Working of circuit

Flow chart

Software details2/15

INTRODUCTION OF PROJECTNow a days, a problem of security is very much important everywhere in the world. So, in large firms or companies, to make protect of entering of unauthorized person or to secure their important section, they generally use this type of security.

This project, AN ACCESS CONTROL SYSTEM provides a facility of security. This type of security lock is generally attached at the main entrance door of the firms. By using this type of security, only authorized fellow can enter.

It is quite easy in installation and use. Through this, one can allocate more number of passwords to many fellows. It is easy to use as the fellow don’t need to carry any type of id card or chip etc.

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KEYPAD8051

LOADDRIVER

ELECTRICALLOADS

ALARM ALARMDRIVER

BLOCK DIAGRAM and description

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First of all a user enters a password by a hex keypad.

Micro controller checks password and then gives according output.

If the password is correct then it opens the door.

If the password is wrong then it gives output to the alarm.

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CIRCUIT DIAGRAM AND Description

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LCD

When the power supply is switched on, then the whole circuit starts working.

Then in LCD, the name of company is displayed and the person is asked to enter the password.

The password is entered through a hex keypad.

The microcontroller compares that password with the already saved database of employee's information.

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If it matches with any of the saved password, then microcontroller gives output to the LCD.

Then in LCD, the name of employee, his department, his employee number, etc are displayed.

Parallel, the microcontroller gives output to the DC motor to open the door.

If the password doesn’t match with any password three times, then microcontroller displays in LCD that your password is wrong, and it gives output to the buzzer.

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COMPONENT DETAILSSR

NO.NAME SR

NO.NAME

1 MICRO CONTROLLER (AT89S52) 16 ON/OFF SWITCH

2 16×2 LCD 17 LED

3 HEX KEYPAD 18 PRESET(4k7)

4 MICROCONTROLLER COMPATIBLE PCB 19 1000uF/25V CAPACITOR

5 DC MOTOR 20 0.1uF CAPACITOR

6 DC 2NO-NC RELAY(12V) 21 10uF CAPACITOR

7 DC RELAY(5V) 22 33pF CAPACITOR

8 7805 IC 23 5V BUZZER

9 BUG STRIP 24 10Ω RESISTER

10 RESISTER ARRAY 25 1KΩ RESISTER

11 CRYSTAL OSSCILATOR 26 10KΩ RESISTER

12 BRIDGE RECTIFIER 27 CONNECTING WIRES

13 40 PIN CONNECTOR 28 DC SOCKET

14 HEAT SINK 29 SMALL GPB

15 10 PIN CONNECTOR CABLE9/15

MAIN PCB

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WHY HEX KEYPAD?

A general 3×2 matrix keypad contains only0-9 keys.

Whereas a hex keypad contains 0-9 keys and also it contains A,B,C,D,E,F keys.

So it provides more number of combination of Passwords to the firms.

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POWER SUPPLY SECTION

A supply is given from 230v AC through a 12v adepter.

Then it is given to the bridge rectifier. The output of rectifier is given to voltage regulator IC through filter capacitors. 12/15

KEIL µ VISION 3.0.3.

KEIL SOFTWARE IS USED TO PROVIDE YOU WITH SOFTWARE DEVELOPMENT TOOLS FOR 8051 BASED MC. WITH THE KEIL TOOLS YOU CAN GENERATE EMBEDDED APP FOR VIRTUALLY EVERY 8051 DERIVATIVE.

SOFTWARE DETAILS

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START

READKEYPAD

CHECKPASSWORD

SWITCH ONDEVICE

CHECK IF WRONG PASSWORD WAS ENTERED THREE

TIMES

SWITCH OFFALARMSWITCH ON

ALARM

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THANK YOU

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