AUTOMATION OF FUNCTION HALL

By,Mahammad subhani(08B11A0424)B.gafoor(08B11A0402)Hussain F.M(08B11A0417)Pankaj yadav(08B11A0445)

INTRODUCTION

Our Project Automatic Room Light Controller with vacancy shower using Microcontroller is a reliable circuit that takes over the task of controlling the room lights as well as showing number of vacancy in the room very accurately . using EMBIDDED SYSTEM

WHAT IS EMBIDDED SYSTEM

One of the first recognizably modern embedded systems was the APOLLO GUIDANCE COMPUTER ,developed by Charles stark draper  at the MIT Instrumentation Laboratory. An Embedded System is a combination of hardware and software whose purpose is to control a device, a process or a larger system.

CHARACTERSTICS

Available system memory Available processor speed Two major areas of differences are cost and power

consumption. Programs on an embedded system often run with real-time

constraints with limited hardware resources: often there is no disk drive, operating system, keyboard or screen.

CONTENTS

I.R sensors Relay D.C.MOTOR L.C.D MICRO CONTROLLER

I.R.SENSARS

IT IS A SENSAR WHICH IS USED FOR DETECTION IT IS CONSISTS OF TWO LEDS ITS WAVELENGTH RANGE IS LESS THAN 950nm WHICH IS LESS THAN THE VISIBLE SPECTRAM

WORKING

SOURS LED WILL EMMITS THE IR LIGHT another led will resive the reflected signal from the object

IN OUR CIRCUIT

at entrance and exit doors

I.R.SENSARS MICRO CONTROLLER

RELAY

A relay is an electrically  operated switch it is used to control low power signals Relays were used extensively in telephone exchanges and early computers to perform logical operations.

AN RELAY CONSISTS OF

ARMATURE(COM) YOKE SPRING(NC) COIL CONTACTS(NO)

WORKING

When current flows through the coil, a magnetic field are created around the coil This causes the armature to be attracted to the coil. The armature’s contact acts like a switch and closes or opens the circuit.

IN OUR CIRCUIT

Motor Unit

RELAYMICRO CONTROLLER

IT IS CONNECTED IN BETWEEN M.C & MOTOR IT ACTS LIKE SWITCH IN BETWEEN THEM

D.C.MOTOR

A DC motor is an ELECTRICMOTOR that runs on DIRECTCURRENT (DC) electricity THIS MOTORS CAN ALSO OPERATE BY BATTERIES Today DC motors are still found in applications as small as toys and disk drives

WORKING

It is based on the principle that when a current-carrying conductor is placed in a magnetic field, it experiences a mechanical force whose direction is given by Flemings left-hand

rule and whose magnitude is given by

                     Force, F = B I l Newton                          Where B is the magnetic field in Weber/m2

                              I is the current in amperes and                                l is the length of the coil in meter.             

IN OUR CIRCUIT

RELAY D.C MOTOR

THIS IS USED TO SHOW THE OUT PUT

L.C.D (LIQUID CRYSTAL DISPLAY)

This is display unit these are used on portable devices where less information content needs to be displayed, lowest power consumption and low cost

L.C.D CONSITS OF

Gnd vcc preset rs rw en d0 d1 d2 d3 d4 d5 d6 d7 vcc gnd

LCD DISPLAY

ground VCC

VEE

RS R/W EN D0-D7

WORKING

It also uses the command codes the data to be display on the lcd is converted into ASCII format Contrast on display depends on the power supply voltage and whether messages are displayed in one or two lines.

IN OUR CIRCUIT

It is used display how many persons entering into hall & how many persons going out of hall

micro controller

LCD

MICRO CONTROLLER

RAM ROM

I/O Port

TimerSerial COM Port

Microcontroller

CPU

A single chip

M.c is invented in the year 1980

Being packed in a tiny integrated circuit (IC) whose size and weight is usually negligible

A microcontroller is a functional computer system-on-a-chip. It contains a processor, memory, and programmable input/output peripherals

AT89S52 MICROCONTROLLER

in our project we are using AT89S52 This microcontroller belongs to 8051 family. This microcontroller consists of 40 pins

it is a very powerful device, which is capable of executing a series of pre-programmed tasks and interacting with other hardware devices.

IN OUR PROJECT

I.R sensars

AT89S52 microcontroller

RELAY

this is is one of the important part of the project it will collect signals from I.R.snsers and gives instructions to other components

BLOCK DIAGRAM OF THE PROJECT

ATMEL89C51Controller

Display unit

Motor Unit

Driver circuit

ATMEL89C51 microController

Motor Unit

Sensor 1

Sensor 2

Oscillatory circuit

Reset circuit

Relays

PROJECT DISCRIPTION

WHY POWER SUPPLY BOARD

GENERALLY WE GET 230 V a.c TO HOMES IF WE GIVE 230 V A.C TO OUR CIRCUIT IT WILL DAMAGE TO AVOID THIS DAMAGE WE POWER SUPPLY BOARD THIS WILL CONVERT A.C INTO REQUIRED AMOUNT OF D.C AND GIVES TO THE CIRCUIT

INPUT SIGNAL

GIVE 230V A.C TO POWER SUPPLY BOARD

POWER SUPPLY BOARD CONSISTS

STEP DOWN TRANSFORMER RECTIFIERFILTERVOLTAGE REGULATORREGULATED DC VOLTAGE

BLOCK DIAGRAM

AT INITIAL CONDITION

Relay will be in off condition All the motors & bulbs are also in off condition LCD will be in on and displays I.R.sensars will be on

WHEN HALL IS EMPTY

I.R.sensar

I.R.sensar

ENTERENCE

EXIT

AUTOMATION OF CONFIRENCE HALL

M.C

RELAY

BULB

OFFOF

WORKING OF CIRCUIT

ENTERENCE

EXIT

I.R.sensar

I.R.sensar

I.R.sensar

I.R.sensar

ENTERENCE

EXIT

PERSON-1

M.C

RELAY

BULB

ONOF

Project over view

FUTURE IMPROVEMENTS

REFERENCES

WEBSITES:WWW.ALLDATASHEETS.COMWWW.8051MICROCONTROLLERPROJECTS.COM

TEXTBOOKS:MICROCONTROLLERS ARCHITECTURE PROGRAMMING AND INTERFACTING – RAJKAMAL PEARSON EDUCATION 2005THE 8051 MICROCONTTROLLER AND EMBEDDED SYSTEMS – MAZIDI AND MAZIDI, PHI, 2000MICROCONTROLLERS (THEORY AND APPLICATIONS – A.V. DESHMUK, WTMH 2005

Thank you