Ppt on automatic street light control using ir sensors
K.SAI KUMAR (11M91A0445)
UNDER THE GUIDANCE OF:
The main purpose of this project is to switch ON
and OFF street lights without manual operation.
By using this system energy consumption is
IR sensors and micro controller are the main
components of the project.
IR sensor is like our eye which detect the presence
of an object.
In the present days Automated systems have less
manual operations, high flexibility, and accurate.
Especially in the field of electronics automated
systems are giving good performance.
our project is to control the switching of Street
IR’s which detects the vehicle with the micro
controller are used.
Regulated Power Supply
The AT89S52 is a low-power, high-performance CMOS 8-bit
It has a 4K bytes of In-System Programmable Flash memory.
128 bytes of RAM,32 I/O lines, watchdog timer, two data
two 16-bit timer,on-chip oscillator, and clock circuitry.
VCC PORT 3
PORT 0 EA
PORT 1 XTAL1
PORT 2 XTAL2
Infrared sensor is an electronic instrument.
It is used to sense certain characteristics in its
surroundings by emitting infrared radiations.
It is capable of measuring heat and detection of moving
Size: [Refer to the image beside]
An LDR( light dependent resistor), offers the resistance in
response to the ambient light.
The resistance of the LDR increases as the intensity of
It can act as a sensor, since a varying voltage drop can be
obtained in accordance with the varying light.
A light-emitting diode (LED) is a semiconductor light
LEDs are used as indicator lamps in many devices, and
are increasingly used for lighting.
LEDs are introduced as a practical electronic
component in 1962.
Electrical symbol & polarities of LED
Structure inside a LED
The working of the project can be clearly
explained by considering the street lights.
The main aim of the project is to automatic switch
ON/OFF the street light by sensing the vehicle.
In this project IR’s are used for sensing the
Initially the street lights are in OFF state by using
As the IR senses the vehicle the street lights
associated w.r.t that sensor will switch ON and OFF
after certain time.
Keil compiler is the software used in the
machine language code.
The machine source code is converted into
This hex code is dumped into the
microcontroller for further processing.
The main idea of this project is to reduce the
wastage of electricity.
For this purpose IR’s and LDR’s are used as
The street light corresponding to that IR will
switch-ON automatically when a vehicle
Can overcome the crisis of natural power
production resources in forth coming days.
Can reduce the wastage of electricity.
Ultimately can conserve some of the natural
resources from completely getting vanished.
Raj kamal –Microcontrollers Architecture,
Programming, Interfacing and System Design.
Mazidi and Mazidi –Embedded Systems.
DIP Microcontroller Manual – Microchip.
Embedded C-Michael J Pont