Design And Construction Of Security Lighting Control System Using Mobile Phone

DESIGN AND CONSTRUCTION OF SECURITY LIGHTING CONTROL SYSTEM USING MOBILE PHONE

Security Lighting

ABSTRACT

This project aims at the design and construction of a security lighting control system using a mobile phone to serve as a remote control to control security lights. The device is made up of four main units. The mobile phone which is serving as a transmitter for remotely controlling the security lights. The GSM modem which serves as the receiver. A sim card is placed in the GSM modem and all messages from the transmitter are sent to that mobile number. The microcontroller unit processes the information extracts the message from the GSM modem and processes it. Then it either puts on a pin or leaves it off. The switching unit is responsible for putting on or off the bulb depending on the output from the microcontroller. Upon completion of the project, it was tested and it worked properly. “light on” puts on the bulb and “light off” puts off the bulb. Thus an effective and reliable security lighting control system using mobile phone was realized.

CHAPTER ONE

INTRODUCTION

1.1       Background of the study

In our day to day life, we use various gadgets such as television, set top box, air conditioners, home theater, DVD player and many other remote operated devices for comfort and happiness. Different gadgets mean maintaining different remote controls which are not only clumsy but also difficult to manage. Universal remote control simplifies our life because it helps us control any IR devices like TV, air conditioner, home theater including lights and fans. But, because of many technological complexities it becomes difficult to build a single IR based universal remote which can control all available IR based electronic gadgets from different manufacturers. The rapid growth in mobile communication system in present era is changing people’s life and work style. Fast development of mobile technology has brought the world in our grasp.

Mobile devices, such as mobile phones, are becoming multipurpose devices. Imagine being able to control all the electrical appliances in a house from virtually any place in the world, GSM home automation may seem like an idea of the future; however there are many possibilities of using it currently (Friedhelm, 2012). The technology works by allowing communication between a receiver in the house and a mobile phone elsewhere. That receiver can then be signaled to “On” or “Off” appliances in the house based on command from the mobile phone. Through the use of micro-controller, any electrical or electronic device such as lighting a bulb can be controlled from a distance (Ohaneme, Akpado, Ifeagwu, and Ezeagwu, 2014). This paper presents a system that allows the user to control lighting systems remotely using mobile phones. It provides remote control via Short Messages Services (SMS) using Global System for Mobile Communication (GSM) technology. This system is related to past study which uses personal computer (PC) that contains the software components through which the lights and appliances are controlled and home security is monitored. This paper developed a system that uses a microcontroller instead of PC and hence the system size is reduced . The most common problem that home owners encountered in relation to lighting system is due to some negligence like leaving the lights ON in error resulting to greater power consumption. This wasted power directly affects the home owner electrical bills. Another problem is that of the busy home owners who will arrive home late at night; they may want to switch on their security lights from a distance in order to protect their house against robbery and crimes. The mobile phone is configured to send SMS of the ON/OFF state of the appliance to a modem (a particular mobile phone line). The owner can control the system through his mobile phone by sending Attention (AT) commands to the Modem line and in turn, to the microcontroller. The system can also provide password security against operator misuse/abuse.

1.2 AIM AND OBJECTIVES

This project aims at the design and construction of a security lighting control system using a mobile phone to serve as a remote control to control security lights. We need to save or conserve energy because most of the energy sources we depend on, like coal and natural gas can’t be replaced. A light dependent sensor is interfaced to the microcontroller it is used to track the sunlight and when the sensors goes dark the led will be made ON and when the sensors found light the led will be made OFF. Therefore, for the purpose of this study, the mobile phone is serving as a transmitter for remotely controlling the security lights.

  1.3 SCOPE AND LIMITATION

This study covers the use of mobile phone as a transmitter for remotely controlling the security lights and a GSM modem as the receiver. This study also used a sim card placed in the GSM modem and all messages from the transmitter are sent to that mobile number. The microcontroller unit processes the information extracts the message from the GSM modem and processes it. The device is made up of four main units only.

CHAPTER TWO

 

 

HARDWARE DESIGN AND CONSTRUCTION

 

 

 

 

2.1 DESCRIPTION OF COMPONENTS

 

In this project the list of hardware components used are given below:

 

2.1.1    The Buzzer Driver

2.1.2    The Relay Driver

2.2.3    The LCD Display

2.1.4    Power Supply

2.1.4.1 Transformer Design

2.1.5.   Capacitor

2.1.6    The Power indicator LED

2.1.7    The GSM Battery charging interface

2.1.8    The GSM interface

2.1.9    Switches

2.1.10  Multiple Switch with ADC pin / Comparator

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