1. AUTOMATIC STREET
LIGHTING SYSTEM
Presented by:
MD. RAIHAN HOSSAIN
ROLL NO. 1211043
MD. SABBIR AHMED
ROLL NO. 1211047
JAHANGIR ALAM
ROLL NO. 1211054
Supervised by:
Dr. MD. RAFIQUZZAMAN
ASSISTANT PROFESSOR
MD. SHOHEL PARVEZ
ASSISTANT PROFESSOR
2. WHAT IS AUTOMATIC STREET LIGHTING
SYSTEM
Automatic Street Lighting System is a simple and
powerful concept, which uses transistor as a switch to
switch ON and OFF the street light system automatically.
It automatically switches ON lights when the sunlight
goes below the visible region of our eyes.It automatically
switches OFF lights when Sunlight fall on it in morning,
by using a sensor called LDR (Light Dependent
Resistor) which senses the light just like our eyes.
3. OBJECTIVES
Reducing the wastage of power
Reducing physical efforts
Improve the system in our daily life
4. BASIC CONCEPT ABOUT PROJECT
Simple and powerful device, which uses
Transistor (BC547 NPN)
Switches ON lights (LED) when the light (i.e.
day light) decreases
Switches OFF lights when light falls on LDR
9. DISADVANTAGES
It has a limitation of power
Light turns on when shadow falls on LDR
LED is a low voltage device
10. FUTURE IMPROVEMENT
By using same concept we can modify this
project for commercial use
It is possible to make the project appropriate for
high voltage of power