These are the slides of GSM Based Home Security System, which is built to ensure the safety and security of the assets and the threat by using an 8051 microcontroller to automatically send predefined text notifications, voice and video calls to a desired number to meet technological advancement to automate life and to prevent intrusion to provide maximum degree of protection against danger, damage, loss, and crime.

1. Chapter 1 Introduction
CHAPTER# 1
INTRODUCTION
1.1 What is a Security System?
Security is the degree of protection against danger, damage, loss, and crime. Security as
a form of protection is structures and processes that provide or improve security as a
condition. A Security System provides a form of protection that ensures the safety and
security of the assets and the threat but is not limited to the elimination of either the asset
or the threat.
1.2 Why Security Systems are becoming more necessary?
Homes without security systems normally find themselves targets to property crimes.
Security systems give homes a much higher chance of not being burglarized, and keep
family members out of harm’s way.
Home protection concern for the safety of your family is only natural. It is
understandable that many people also want to protect their property. Burglaries can
happen at any time of the day. It usually happens during the day when they know you are
at work or away from home. Your home can still be broken in to while you are inside,
which makes you and your family vulnerable.
Having a security system enabled allows your home to be safe any time of the day. Your
home will be monitored by a security company or even you do it yourself at all times. It
provides a good reassurance to your home security when you know that if a serious threat
does arise someone will be there to alert professional emergency help.
If a burglar knows your home has security system installed, they often stay away. If they
decide to take the risk, once the alarm sounds more often than not the burglar decides to
not stick around for the police. When someone breaks in to your home, a security system
also warns you of it so you can take the necessary precautions you know to get your
family out of harm’s way.
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2. Chapter 1 Introduction
1.3 Types of Home Based Security Systems
In today's technical world, there are a variety of home based security systems in the
market. Compiled below are a few of the many systems that are available for security
needs.
1.3.1 Wireless Security Systems
These systems are convenient because they can be put almost anywhere and can
be moved when necessary. There are no wires to worry about hiding, or getting
tangled with other wires in the home.
1.3.2 Motion Sensors
Motion sensors detect movement in the home or on the property. Some of these
systems use infrared light that detects changes in heat. High frequency wave is
another motion sensor.
1.3.3 Acoustic Sensors
These sensors can detect sounds such as breaking glass. These sensors are usually
put around windows and doors where intruders are likely to try and gain entrance
into a home or business.
1.3.4 Digital Security Systems
These systems secure a certain area and require a code to disarm them. If this is
not done, the company that monitors the device, will check for an error or send
help, if necessary.
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3. Chapter 1 Introduction
1.3.5 Security Alarms
These alarms are fixed in homes and are triggered in case of emergencies or they
are carried around with a person and in the event that there is a medical or other
emergency, the alarm can be triggered.
1.3.6 Automotive Security Systems
Automotive security system provides complete advantages of the technological
advancement by giving proper automatic security measures.
1.3.6.1 GSM Based Security System
GSM Based security system makes use of the currently-available GSM
infrastructure and the hardware units using said infrastructure, functioning
everywhere with GSM signals available. It automates the home and keeps
updating the user using GSM technology.
1.4 Why GSM Based Security System? (An Overview of Dissertation)
The GSM Based Security System provides enhanced security as whenever an interruption
occurs a text message is sent to a desired number to take necessity measures. The GSM
Based Security System is reliable and user friendly and posses Automatic Emergency
Care Response that detects Sound, Smoke, LPG Leakage and informs user on their
mobile number via text messages, Cameras are embedded with the security system that
allow live streaming and give direct access to the user to monitor their protected zones.
Moreover it can automatically switch Electric Appliances and Devices ON/OFF as per
user’s requirement. The Door Bell detector sends a notification to the user’s number if in
case someone ring’s the bell while the Auto Door Locks enable the user to know
whenever anyone opens the door in his absence. If incase the user gets a clear evidence of
someone breaking in the home s/he can live stream the cameras from anywhere in the
world and can trap the robber using Trapping System.
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4. Chapter 1 Introduction
1.5 Aims and Objectives
The aim of the project is to develop & launch an up-to-date, reliable and user friendly
security system to automate home security using microcontroller circuitry synchronized
with GSM module with an objective to provide maximum possible security based on an
automatic emergency care response using detectors, cameras and trapping system.
1.6 Achievements
We have made a big contribution in the promotion and reliability of home based security
systems. Among the contribution, the part of providing automatic text message
notifications regarding any undesired movements is user friendly, live streaming of
cameras of user’s desired secured zones is more trustable than that of previous versions
of home security systems.
The concept of trapping system is new, unique and more reliable than any of the previous
automatic security systems ever designed for homes.
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5. Chapter 1 Introduction
1.7 Comparison of GSM Based Security System with other Security Systems
The Comparison of GSM Based Security System with other Security Systems enlisted
above is given below:
SECURITY SYSTEMS ADVANTAGES DISADVANTAGES
1. Wireless Security Portable, Easy Installation Expensive, Unreliable
Systems
Reasonably Priced, Easy Detects undesired motion,
2. Motion Sensors
Installation, detects motion and Not reliable, non portable,
triggers alarm Exceptionable
Detects undesired sound,
3. Acoustic Sensors Economical, Easy Installation,
Not reliable, non portable,
detects sound and triggers alarm
Exceptionable
4. Digital Security Systems Automatic emergency care
Expensive, Not User
response, Reliable, Support
Friendly, non portable
Cameras.
5. Security Alarms Cost Effective, Easy Exceptionable, Non
Installation, Quick Response Reliable, Non User Friendly
Reliable, User Friendly,
6. GSM Based Security
Automatic Emergency Care
System
Response, Detects Sound,
Smoke, LPG Leakage and
informs user on his/her
mobile, Cameras Embedded, Expensive, Non Portable.
Live Streaming of Cameras,
Automatic Electric devices
ON/OFF, Auto Door Locks,
Door Bell Detector, Trapping
System.
Table 1.1 - Comparison of GSM Based Security System with other Security Systems
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