aumometic light glow on senceing vehicle movement

1. United Institute of Technology
Gudalur Koundampalayam, Periyanaickenpalayam, Coimbatore
BE. Electrical and Electronics
Engineering

2. Street Light
Glows On Detecting
Vehicle Movement
By:
Mr.V.Sam
Eliezer,
Mr.G.Kalaiyaras

3. Generally, street lights are switched ON For
whole night and during the day,
They are switched OFF. But during the night time,
street lights are not necessary if there is no
traffic. Saving of this energy is very important factor
these days as energy resources are getting
reduced day by day.

4. Nowadays, Street Lighting System
in industries or cities are growing rapidly.
The important considerations in the field
of Different Technologies like
electrical and electronics are cost effective,
automation and power consumption
are high.

5. Now a days Street Light

6. Street Light
Glows on
Detecting Vehicle Movement

7. The working principle of this circuit is, when
light falls on the light dependent resistor, then
its resistance will be decreased, which results in
an increase of the voltage at pin2 of the 555 IC.
This 555 IC is inbuilt with a comparator, which
associates between the i/p voltage from pin2 of
the IC and 1/3rd of the power supply voltage.
When i/p falls below 1/3rd then o/p is fixed to
high otherwise it is fixed to the lower.

9. This project is used to detect the
movement of a vehicle on highways or
roads to turn ON the lights when the
vehicle is ahead of the lights, and to turn
LOW the glowing light when the vehicle
passes away from the lights. By using this
project we can conserve the energy