The system comprises of two IR Transmitter-Receiver
pairs, one of which is located in front of the door outside the room. The other
pair is located inside the room. Whenever a person tries to enter into the
room, the receiver of first IR pair identifies the person. Then the
microcontroller identifies this and increments the count to 1. Similarly as the
person enters into the room, the count will be incremented and this count will
be displayed on LCD.
This project is also applicable to count the objects
in a predefined area. The main application of this project can be seen in
manufacturing and production industries like bottle filling, pharmaceutical
industries etc. The IR transmitter, when encounters any object in between the
transmitter and the receiver, does not transmit the IR signal to the receiver.
This change in the output of the IR receiver will be recognized by the
microcontroller and it automatically increments the object count by 1.
SOFTWARE
AND HARDWARE TOOLS:
Software
Tools:
- Keil compiler
- Orcad.
Hardware
Tools:
- Microcontroller AT89S52.
- IR sensor
- LCD.