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8/9/2019 Automatic Over Speed Contolling System-RFID BASED
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8/9/2019 Automatic Over Speed Contolling System-RFID BASED
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INTRODUCTION Most of the fatal or serious accidents are
associated with excessive or
inappropriate speed.
Safety will be achieved by automaticdriving controls and a growing number ofsensors both on the road infrastructureand the vehicle itself.
The key idea oered is to use RadioFreuency !denti"cation #RF!$%technology to tag the warning signalsplaced in the dangerous portions of theroad.
8/9/2019 Automatic Over Speed Contolling System-RFID BASED
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AIM OF THE PROJECT To control the speed of the vehicles at
restricted areas in city #vi&. school &one'hospital &one% with certain speed limits
mentioned on the roads. (ere we are using RF!$ 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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COMPONENTS USED IN
THE 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 CONTROLLER
PIN DIAGRAM
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FEATURES OF ATMEL
89S52 *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 $ata 9ointer
9ower5o Flag
8/9/2019 Automatic Over Speed Contolling System-RFID BASED
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RFID Radio Freuency !denti"cation #RF!$% 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 BASIC
STAGE /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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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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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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SOFTWARE USED…
L!"#"$ %
mbedded E*
TOOLS% :eil Gvision6.
The :eil is used to compile the program
written in embedded * and convert itto hex "le.
xpress 9*;.
* Source *ompiler.
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ADVANTAGESH /ccidents are avoided at least in the speed
restricted areas such as school and hospital&ones.
H Moreover it also ensures eIcienttransportation of vehicles.
H Restricted areas are controlledautomatically rather than manually.
H ase of checking process at high ways andcheck points.
H The proposed on5board architecture isportable and easily adaptable to anycommercial car with minimal modi"cations.
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F!T!RE EN$ANCEMENT
!n our pro)ect' only the test vehiclewas present on the road. !n normaldriving situations' we can expect
other vehicles circulating nearby andpossibly blocking or attenuatingsome of the RF!$ transmittingsignals' especially with large vehicles
like trucks. !n this aspect' more experimentation
is needed to know how this
circumstance will aect the vehiclescontrol 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 suIciently inadvance' so corrective actions on the
vehicles behaviour can be taken. the vehicles speed is successfully
controlled as a result of the detection ofthe signals' increasing the drivers safety.
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