A Presentationon

Minor Project

“PASSWORD BASED WIRELESS DOOR OPENER

SECURITY SYSTEM”

INTRODUCTIONO Password based door opener security

system provides us ease with security.

O With the help of this system, we can easily avoid the incoming of any offenders , strangers too.

O We can easily access our garage, home, offices etc. without the use of any kind of keys or opening it by ourselves.

O Hence, provide “AUTOMATION” & “SECURITY”.

MAJOR COMPONENTS USED:-

OTransmitter : HT12E (1).OReceiver : HTI12D (1).OMicrocontroller : 8051 (1).ODisplay : a) LCD (1). b) LED (5).O Input : Switches (4).OPower supply : +5V.

TRANSMITTER• Transmitter that we used here

is HT12E.• This is a transmitter module

used for RF communication at 433 MHz .• This module has 4 switches in

conjunction with LED’s.• Range : 60- 100 m.

RECEIVER

• Receiver that we used here is HT12D.• This is the type of receiver used

in contrast with transmitter work in RF communication.• Range : 60-100 m.

MICROCONTROLLER

LCD (liquid crystal display)•LCD is a cheap and easiest way to

display text, numbers, letters & symbols.•It comprises of 16 pins .•It consists of several initialization commands. namely – specify function Set (38H), display on-off control (0EH), entry mode set (06H) and clear display (01H).

Working of projectO These are controlled by the switches which are

present in the transmitter part (act as remote) carried by the owner.

O The remote controls were simple and consists of HT12E transmitter having switches in order to place a password.

O LCD so present as displaying media is intend to write the password by displaying a message “ENTER PASSWORD”

O When the password is entered using switches in transmitter the corresponding LED glows and HT12D receiver would respond to the radio signals (only if the receiver is in the range of transmitter and communication LED glows).

• Microcontroller takes the data from receiver and provide an interfacing b/w receiver and LCD. The password so entered is visible in form of **** in LCD.

• If the entered password is matches with the actual password, the door will open automatically and a message is print in LCD saying “DOOR IS OPEN”. On the other hand, if the password so entered does not matches with the actual password, the LCD prints another message saying “WRONG PASSWORD” and the door will remain close until or unless the correct or actual password is entered.

Password entered using

switches

Digital data

Radio signals

Digital data

Password

matches

Password not

match

Accepted- Lock open

Wrong password- lock close

Flow chart of working of the project

ADVANTAGES & APPLICATIONS

ADVANTAGES :

O Simple installation.O Provide ease and automation.O Keyless system, hence no more worry of losing of keys.O Since, it is the system having password facility, provide

security as well.

APPLICATIONS :O Home access security.O Office access security.O Garage automation access.O Home automation access.

THANK YOU!!

ANY QUERY ???