main project ppt
TRANSCRIPT
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