Design Of Automatic Night Light Detector

DESIGN OF AUTOMATIC NIGHT LIGHT DETECTOR

( Case study: Kampala International University)

SEMESTER RESEARCH  PROJECT 

BY

• NABASA HIRIJI                
• LUNKUSE STELLA      
• OGWAL EMMANUEL              
• LUCY HAKIM                      
• SSEMAGANDA RICHARD      
• RWOTOLARA DANIEL      
• SIMON JUMA BULLEN     

LECTURER’S NAME: MR. ADABARA IBRAHIM

©2016 all rights reserved

ABSTRACT

The lighting systems in place nowadays mainly rely on the presence of users who have to switch them on or off manually. Due to this manual operation the lighting systems are expensive where there have to be switches in place, energy consumption is also high especially when the lights are left on during the day time hours when they are not necessary and the switches are prone to wear and tear.

This research project solved the manual operation problems and able to reduce the cost since it is automatic and it switches on and off depending on the time of date.

First designed a 5V regulated power supply using a transformer, bridge rectifier, capacitor and a voltage regulated.

Design the switch that will be on during night hours and off during day hours. The implementation of the circuit was done by use of bread boards, soldering gun and lead.

Testing of the research project was done in two distinct levels. Firstly we tested the functionality of the switch and lastly the overall system.

This research project is much economical compared to the one that is currently been used.

CHAPTER ONE 

INTRODUCTION 

1.0   Introduction

The project title is an “Automatic Night Light Detector” which uses Light Dependent Resistor, it consists of a circuit which turns on the bulb interfaced to it during night hours and it turns off the bulb automatically during day hours.

1.1   Background

The light-darkness detector is a current system that was developed in the late 1990’s. Its introduction has attracted a number of users including institutions, homesteads, hospitals and city authorities all over the world. 

1.2   Statement of problem

Energy consumption is increasing changing over time, which ultimately changes the level of global warning. Every day we work hard to reduce the level of energy consumption. This cannot be realized if our lighting systems are consuming a lot of energy.

Technology is also changing where the manual operations are replaced by automatic operations. The automatic is preferred because there is no need of constant monitoring; this helps to reduce the level of energy consumption.

1.3   General objective of the problem

The main objective of this project was to come up with a lighting system that turns on/off light automatically during the night and day hours respectively hence saving energy and it’s cost effective.

1.4   Specific objectives

The project’s specific objectives are;

• To design and come up with cost effective lighting system.

• To design the switching system that will automatically turn on/off lights during night and day hours respectively.

1.5   Significance of the study

• The project is cost effective in terms of power consumption and installation.

• The project provides reliability light intensity at all the necessary times.

1.6   Scope of the project

Lighting is very important in all institutions especially learning institutions. Without the proper light intensity learning can be a problem to students and their lecturers. Kampala International University is our case study which is one of the institutions that need the proper intensity for learning purposes. To maintain the light intensity that is adequate for this purpose we designed an automatic night light detector and with this the institution will minimize on energy consumption since the system switches lights on during night hours and switches them off during the day hence saving energy.

Circuit diagram

  

Soldering on PCB