91847806 main ppt speed control system with rfid equipped vehicle

8/15/2019 91847806 Main Ppt Speed Control System With Rfid Equipped Vehicle

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SPEED CONTROL SYSTEMWITH RFID EQUIPPED

VEHICLE


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AIM OF THE PROJECT To control the speed of the vehicles at

restricted areas in city #vi&. school &one'hospital &one% with certain speed limits

mentioned on the roads. (ere we are using RF!$ card reader in

identifying the speed limit mentioned onthe road' which is interfacing with the

controller. RF!$ is a key role in our pro)ect.


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BLOCK DIAGRAM


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COMPONENTS USED INTHE PROJECT

M!*R+ *+,TR+--R #/T01S23%

RF!$ */R$

RF!$ */R$ R/$R M/45363

$* M+T+R

M+T+R $R!7R

-*$


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MICRO CONTROLLERPIN DIAGRAM


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FEATURES OF ATMEL89S52 *ompatible with M*S528 9roducts

0: ;ytes of !n5System 9rogrammable #!S9% FlashMemory

< ndurance= 8>>> ?rite@rase *ycles A.>7 to 2.27 +perating Range

Fully Static +peration= > (& to 66 M(&

32B: !nternal R/M

63 9rogrammable !@+ -ines 6 8B5bit Timer@*ounters

ight !nterrupt Sources

$ual $ata 9ointer

9ower5o Flag


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RFID Radio Freuency !denti"cation #RF!$% is

a technology that uses radio freuenciesto automatically identify and track

people or ob)ects. RF!$ oers higher data storage

capacities' higher identi"cation speeds'and greater immediacy and accuracy of

data collection


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RFID TAG


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RFID WORKING AT BASICSTAGE /t a basic level' each tag works in the same

way=

$ata stored within an RF!$ tagCs microchipwaits to be read.

The tagCs antenna receives electromagneticenergy from an RF!$ readerCs antenna.

Dsing power from its internal battery or powerharvested from the readerCs electromagnetic

"eld' the tag sends radio waves back to thereader.

The reader picks up the tagCs radio waves andinterprets the freuencies as meaningful data.


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RFID CARD READER /n RFID re!er is a device that is used to

interrogate an RF!$ tag.

The reader has an antenna that emits radiowaves the tag responds by sending back its data.

RF!$ tags transmit their identi"cation codeand are detected by the RF!$ readers onboardthe vehicle.

The information is transmitted to a M*' which

determines the correspondence between tag!$ and readers.

This M* communicates the new target speedas well as other relevant data for the control ofthe vehicle.


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MA"#2$2 !t is a dual RS363 receiver @ transmitter

that meets all RS363 speci"cations whileusing only G27 power supply.

!t has two onboard charge pump voltageconverters which generate G8>7 to 58>7power supplies from a single 27 supply.

!t has four level translators' two of whichare RS363 transmitters that convert

TT-@*M+S input levels into G17 RS363outputs.

The other two level translators are RS363receivers that convert RS363 input to 27.


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DC MOTOR /n electric motor is a machine which

converts electrical energy intomechanical energy.

/ $* motor is designed to run on $*electric power.

?hen electric "eld passes through thecoil in a magnetic "eld' the magnetic

force produces a torue which turns the$* motor.


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WORKING OF A DC MOTOR

Electric current is supplied

externally through commutator

Magnetic force acts

perpendicular to both wire

and magnetic field

Commutator reverses the

current each half revolution to

keep the torque running the coil

in the same direction

Torque in dc motor

Current in dc motor


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The running torque of

the motor is proportional

to magnetic field

The magnetic field is

directed from north pole

to south pole.

Magnetic force acts

perpendicular to both wire

and magnetic field

Magnetic field in dc motor

Force in dc motor


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RELAYS

/ relay is an electrical switch thatopens and closes under the control of

another electrical circuit. !n the original form' the switch is

operated by electromagnet to openor close one or many sets of contact'

because of the relay is able to controlan output circuit higher power thanthe input circuit.


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/ 8Bx3 -*$ can display 8Bcharacters per line '

there are two such lines.

!n this -*$ ach character isdisplayed in 2xH

pixel matrix.

This -*$ has two registers=*ommand and $ata.

!n our pro)ect' we use this -*$ fordisplaying the

speed of the vehicle when it is

LIQID CR!"TAL DI"#LA!


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WORKING

;ased on r"d principle' whenever ther"d card reads certain freuency #speed

in this case%' the vehicle speed reducesto that limit of speed.

This limit of speed is maintained untilthe freuency changes.

/s soon as the vehicle crosses over thespeed limit &one' it moves with its ownspeed.


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#OW$R "##L!

For biasing the microcontroller 2 volts isreuired and hence this circuit is used

to get an output of 2 volts.

VIN (ac)

VIN (ac)

Vout (dc)1 2 3

Regulator |

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2

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3

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4


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SOFTWARE USED&

L'()(e *

mbedded I*J

TOOLS* :eil Kvision6.

The :eil is used to compile the program

written in embedded * and convert itto hex "le.

xpress 9*;.

* Source *ompiler.


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ADVANTAGESL /ccidents are avoided at least in the speed

restricted areas such as school and hospital&ones.

L Moreover it also ensures ecienttransportation of vehicles.

L Restricted areas are controlledautomatically rather than manually.

L ase of checking process at high ways andcheck points.

L The proposed on5board architecture isportable and easily adaptable to anycommercial car with minimal modi"cations.


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FTR$ $N%ANC$M$NT

!n our pro)ect' only the test vehiclewas present on the road. !n normaldriving situations' we can expect

other vehicles circulating nearby andpossibly blocking or attenuatingsome of the RF!$ transmittingsignals' especially with large vehicles

like trucks. !n this aspect' more experimentation

is needed to know how this

circumstance will aect the vehicleJscontrol erformance. / ossible


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CONCLUSION The speed control of a vehicle on the road

which can help to decrease one of thema)or causes of fatalities= the excessive orinadeuate vehicle speed.

since active RF!$ technology permits todetect the presence and identity of thevehicles reliably and suciently inadvance' so corrective actions on the

vehicleJs behaviour can be taken. the vehicleJs speed is successfully

controlled as a result of the detection ofthe signals' increasing the driverJs safety.


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W E H U M B L

Y I N V I T

E Y O U

R

Q $ R I $ "


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91847806 main ppt speed control system with rfid equipped vehicle

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