DESIGN OF INTELLIGENT TRAFFIC LIGHT CONTROLLER USING GSM & EMBEDDED SYSTEM

sanatoriumdrumElectronics - Devices

Nov 25, 2013 (3 years and 8 months ago)

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DESIGN OF INTELLIGENT TRAFFIC LIGHT
CONTROLLER USING GSM & EMBEDDED SYSTEM


Introduction:


This particular project is designed for the cities with heavy traffic.
Eg: In Bangalore the roads are full jammed every time. Most of the time the
traffic will be a
t least for 100meters .In this distance the traffics police can’t
hear the siren form the
ambulance. Then

the ambulance has to wait till the
traffic is

cleared
. Some times to free the traffic it takes at least 30 minutes .So
by this time anything can happe
n to the patient .So this pr
oject avoid these
disadvantages
.


Description:





To monitor the density of the traffic, we will be keeping the few IR
Sensors in the besides the road and depends upon the signals from the sensors
the timin
g of the traffic signals will be changed. The sensors output is given to a
comparator to digitize the output.
If the 1
st

IR is blocked means that particular
road signal will be switched

to green light for 10sec, If the vehicles blocked till
2
nd

IR means th
at particular signal will be switched to 15sec & the signal time
will be displayed on the LCD


When the ambulance comes in emergency default number will be
displayed on the LCD driver has to send the information about ambulance
arrival in the particular ro
ad to that number through GSM then that road signal
will be switched to green for 20 sec.

The heart of the embedded system is the microcontroller.

8051
architecture based P89V51RD2 microcontroller from NxP is used to implement
this project. Microcontroller

acts as the heart of the project, which controls the
whole system. It contains 1k RAM, 64k Flash, 3 Timers, 2 external interrupts, 1
UART, 32 GPIO’s, ISP programming support etc. KEIL IDE is used to program
the microcontroller and the coding will be done
using Embedded C.






Block Diagram:























MICRO CONTROLLER
P89V51RD2

IR RX
’S

IR TX

16X2 ALCD

SIGNAL
LED’S

GSM MODULE







ROAD 2


I

S4

S1



ROAD 1

ROAD 3





S2


S3


ROAD 4






Components Used:



Microcontroller
-

P89V51RD2




IR sensors



Comparator

LM358



Red

and Green LEDs



16X2 LCD



GSM

AMBULANCE

IR RX


IR RX

IR
RX

IR
RX

IR TX


IR
TX


IR TX


IR TX


IR RX


IR
TX

IR
RX

IR
TX

IR
TX

IR
TX

IR
RX

IR TX


Softwares used:



Keil


C compiler



Flash Magic



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