Automaticroomlightcontroller[1]

“USER DEFINED PROJECT” A Project

on“Automatic Room Light Controller With Bi-directional Visitor

Counter”SUBMITTED BY,

I.Makwana Krunal Mahendrabhai 116050311031

II.Bodiwala Vatsal Nileshbhai 116050311034

PROJECT HEAD:–

Mr. Jigar. M. Patel

Mr. Muktesh.P. Shah

B&B INSTITUTE OF TECHNOLOGY

V.V.NAGAR – 388120

AFFILATED TO:-

GUJARAT TECHNOLOGICAL UNIVERSITY

AHEMEDABAD.

Contents

Introduction

Automatic Room Light Controller With

Bi-directional Visitor Counter

In today’s world, there is a continuous need for automatic appliances. The objective of this project is to make a controller based model to count number of persons visiting particular room and accordingly light up the room automatically. Here we can use sensor and can know present number of persons.

Aim of our Project

The aim of our project is to make a controller which can sense if any person enters the room and it lights up the room automatically and also counts how many person are entering the room or going out of it. It is made to unwanted prevent electric power waste in schools, colleges, offices and houses. This whole process is operated totally automatically by its sensors.

Components Required

Working Principle

Working Principal

Working Principal

• If the sensor 1 is interrupted first then the microcontroller will look for the sensor 2, and if it is interrupted then the microcontroller will increment the count and switch on the relay, if it is first time interrupted.

• If the sensor 2 is interrupted first then the microcontroller will look for the sensor 1, and if it is interrupted then the microcontroller will decrement the count.

• When the last person leaves the room then counter goes to 0 and that time the relay will turn off, and light will be turned off.

Circuit Diagram

Circuit Diagram

Advantages of Automatic Room light controller

– Low cost– Easy to use– Can be implemented in single door– Can be used for counting purposes – Can be used for automatic room light control

Disadvantages

• It is used only when one person cuts the rays of the sensor hence cannot be used when two or more persons cross the door simultaneously.

• When anybody is inside the room and we need to switch off the power then we’ve to do it manually. So, in this case we fail to automatically control the light.

• In seven segment display board we can count up to a certain no of people entering into the room. If the no of body entering the room is greater than the maximum limit of the display board then we fail to count it.

Other Applications

• For counting purposes • For automatic room light control

Conclusion

The theme of this project when merged with certain established technologies can be quite effective in number of countries like Germany, France & Japan etc. which control the train. This Project is useful in developing countries and this project has a bright future. This project helps us to control the light of a room automatically and counts the number of persons/visitors entering and leaving the room. By using this circuit and proper power supply we can implement various applications such as fans, tube lights etc.

Bibliography• Reference Books:

• E BALAGURUSAMY, “Programming in ANSI C”, Tata McGraw Hill, May 2010.

• MUHAMMAD ALI, MAZID JANICE, GILLISPIE MAZIDI, “The 8051microcontroller and embedded systems”, Pearson Education, April 2009.

  • Websites: • www.datasheets4u.com

• www.datasheetcatalog.com

• www.8051.com

Any queries…. ????