OPTIMUM
ENERGY MANAGEMENT SYSTEM
ABSTRACT
The project is
designed to monitor the number of persons entering as well as exiting a room.
Electrical loads are switched ON as the first person enters and switches OFF
when the last person leaves. IR sensors used in combination with
microcontroller to monitor all the operations. This helps in saving lot of
energy.
There are two pair
sensors, each kept at certain distance from the other. One pair of sensor
consists of a transmitter and a receiver, kept exactly opposite to each other.
The transmitting part emits modulated IR light which is received at the
receiver end and fed to a microcontroller of 8051 family. When a person enters the
room then microcontroller senses it (with the help of IR sensors) and increments
the count and displays it on 7 segment displays and also switches ON the load.
In the same way when a person exits the room, the count gets decremented. When
the last person exits from the room, the lamp is switched OFF. The load
operation is handled by a relay interfaced to the microcontroller.
Further the
project can be enhanced by using timer arrangement in the project so that if
the load switching doesn’t take place for some reason as desired, then timer
would complete the task after prefixed time.
BLOCK DIAGRAM
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