Smart Bidirectional Visitor Counter

Abstract

This article presents a plan for industrial automation using Arduino. This circuit will count the number of people or workers in an industry in a bidirectional manner. This count will be extremely exact, and it will switch on the lights automatically even if only one person enters the room. The total number of persons will be displayed on the LCD. An Arduino UNO Board is used in the circuit. This will aid in accurate visitor measurement and is less complicated than a microcontroller. The Arduino receives signals from sensors, which are governed by a programming code stored in the Arduino's ROM. The infrared sensors continuously monitor any items passing through the structure from both outside and inside also according to the no of people inside the premises the lights are adjusted such that if less than 50% of the population is inside the room which have a total capacity of 100 people then only half lights will be turned on and if more than 50% population comes inside the hall then all lights will turn on. Aside from that, electronic equipment such as lights, fans, and coolers will be turned on and off based on the number of guests within the workplace. This automation will save a significant amount of energy. More sensors like humidity and thermal/temperature sensors can be added to monitor the humidity and temperature of a premise, if by any means the temperature rises above a certain limit this model will beep a warning alarm.