In today’s world, there is a continuous need for automatic appliances with the increase in standard of living; there is a sense of urgency for developing circuits that would ease the complexity of life. The objective of this project is to make a controller-based model to count number of persons visiting particular room and display on the 7-segment display. In our project we use IR sensors to detect the presence of a person. According to this project, two IR sensors are placed apart with a fixed known distance. Whenever IR rays are interrupted by a person during first sensor the count up timer is started. This count value is displayed on the 7-segment display. if it is obtained at second sensor then the count will be decreases depending upon the crowd.

Features:

 To display the real-time count value on a 7-segment display for easy visualization.

 To monitor crowd density by continuously updating the count based on people entering or exiting.  

Major building blocks of the project:

• Arduino uno Microcontroller.
• TWO IR sensors.
• 7 segment display.
• Regulated power supply.

Regulated power supply:

       

Block Diagram:

     

video: