INTELLEGENT TRAFFIC

MANAGEMENT SYSTEM

FOR METRO CITIES

CONTENT

INTRODUCTION TO EMBEDED SYSTEM

MICRO CONTOLLER

BLOCK DIAGARM

POWER SUPPLY

LED

SENSORS

ADVANTAGES

RESULT

EMBEDED SYSTEM

Embeded system is a combination of hardware and software

An embedded system is a special-purpose computer system designed to perform one or a few dedicated functions, often with real-time computing constraints.

It is usually embedded as part of a complete device including hardware and mechanical parts.

Physically, embedded systems range from portable devices such as digital watches and MP3 players, to large stationary installations like traffic lights

AT89C52 MICROCONTROLLER

The AT89C52 is a low-power, high-performance CMOS

8-bit microcomputer with 4 Kbytes of Flash

Programmable and Erasable Read Only Memory

(PEROM)

The device is manufactured using Atmel’s high-density

non-volatile memory technology and is compatible with

the industry standard MCS-51Ô instruction set and pin

out.

FEATURES OF

MICROCONTROLLER 32 Programmable I/O Lines

Three 16-Bit Timer/Counters

Eight Interrupt Sources

4.0V to 5.5V Operating Range

Full Duplex UART Serial Channel

Watchdog Timer

Dual Data Pointer

Power-off Flag

Fast Programming Time

Flexible ISP Programming (Byte

BLOCK DIAGRAM

MICRO

CONTROLLE

R

POWER

SUPPLY

IR

TRANS

MITTE

R

SIGNAL

RECIEVE

R

RED

GREEN

RED

GREEN

RED

GREEN

RED

GREE

N

POWER SUPPLY

LIGHT EMMITING DIODE

A light-emitting diode (LED) is

a semiconductor light source. LEDs are

used as indicator lamps in many devices and

are increasingly used for other lighting

IR-SENSORS

Infrared radiation is the portion of electromagnetic

spectrum having wavelengths longer than visible light

wavelengths, but smaller than microwaves, i.e., the

region roughly from 0.75µm to 1000 µm is the infrared

region. Infrared waves are invisible to human eyes

TYPES

IR sensors are two types

1) IR transmitter

2) IR reciever

Infrared (IR) transmitters and receivers are present

in many different devices, though they are most

commonly found in consumer electronics. The way

this technology works is that one component flashes

an infrared light in a particular pattern, which

another component can pick up and translate into

an instruction.

advantage

Increasing the traffic handling capacity of roads.

Reducing collisions, both vehicular and pedestrian. Encourages travel within the speed limit to meet green lights.

Reducing unnecessary stopping and starting of traffic - this in turn reduces fuel consumption, air pollution, noise and vehicle wear and tear.

Improve journey time.

Reducing driver frustration and 'road rage'.

Dis advantages

Excessive delay may caused

These unnecessary delay results in significant

fuel waste and higher motority costs

Disobediance of signal

THANK YOU

QUARIES