LGEC001 fdffdfSynopsis

8/18/2019 LGEC001 fdffdfSynopsis

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LGEC001

DOOR LOCK SYSTEM USING CELL PHONE

IntroductionHave you ever been caught in such a situation? When you have visited yourfriend’s or relative’s place and then they were not there. It must have beenvery disappointing…to wait for them for long hours outside the house. Whatif your friend has electronic lock but he is not ready to share the securepassword with you. It will be very frustrating to wait outside the house.Imagine if there can be a device which can be controlled remotely withoutrequiring any eternal device! which can be controlled by owner of the houseremotely sitting anywhere in the world using his cell phone. Here’s thesolution for the above problem. In this pro"ect we will be designing an

electronic interface in which you can control any system from remotelocation by using your mobile phone! all "ust you have to do is call to thereceiver mobile and give the control input for the operation. #he device canbe any door lock! any device! security system etc. #he ma"or interest in thispro"ect is that the operations can be controlled in in$nite range if mobilenetwork is present.

Pictori! Repre"enttion#

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$!oc% Di&r'

$!oc% in (rie)#

Input Section#

%. Mo(i!e %e*pd# #he key matri of your mobile.&. Te!ephonic Net+or%# '() communication scheme*system

+. Decoder# ,onnected to receiver end mobile-this mobilecon$gured in auto answer mode via headphone to send the /#)0

tones to the circuitry.,onverts frequency signals to 12bit binarydata.

Proce""in& Section#

Microcontro!!er# 3rogrammed by the user to monitor the input andgenerate proper output for the output unit. In general this is the brainof the system.

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MOT

OR

DRIV

ER

MOT

OR

DRIV

ER

MICRO

CONTROLLER

)I,45,56#457784

MICRO

CONTROLLER

)I,45,56#457784

DECODE

R

DECODE

R

TELEPHONIC

NETWORK

TELEPHONIC

NETWORK

MOBILEMOBILE

MANUAL RECEIVING

SYSTEM

MANUAL RECEIVING

SYSTEM

MOBILE

KEYPAD

MOBILE

KEYPAD

DOOR DOOR

LCDLCD

MOBILE



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Output Section#

Motor Dri,er# I, 7&9+/ will be used which can drive the motor for change

of direction as well as provide proper voltage and current.

Motor# ,d tray installed with motor as door prototype.

1-./ LCD # :sed as display device for required data.

De"cription#

It’s a pro"ect dealing with remote controlling solutions to common problems.It is an electronic security system that can be controlled from anywhere inthe world "ust by using a cell phone! It uses a 1 to %; digit secured code for

identi$cation. #he person who wants to enter the house calls the owner of the house. #hen he puts in the headphone connected to the receiver in hisheadphone "ack.


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the door through the motor driver. #he 7,/ shows the password in encrypted form

and its validity or invalidity.

Hrd+re Co'ponent"#

• ,)==>; I,

• )icrophone unit

• ;, provides full /#)0 receiver

capability by integrating both the band2split $lter and

digital decoder functions into a single %=2pin /I3.

Microphone@ )icrophone is used to connect

the /8,5/84 with the cell phone. #his unitcomes in input block.

Microcontro!!er Deti!"# #his unit is the

brain of the system. #his is responsible for the

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full control of the system. #he microcontroller used here is a common =bit


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MOTOR# 0or the door prototype we will be using

a ,/ tray installed with /, motor. #he control of this motor will show opening and closing of door.< direct current -/, motor is a fairly simpleelectric motor that uses electricity anda magnetic $eld to produce torque! which turnsthe motor.


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Documents

LGEC001 fdffdfSynopsis