KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
COLLEGE OF ENGINEERING
DEPARTMENT OF TELECOMMUNICATIONS
PROJECT TOPIC: GSM ALARM SYSTEM WITH VIDEO SURVEILLANCE
OPOKU MEDAS SELASSIE: 3731109
BAFFOE-MENSAH NANA KWESI: 3728609
SUPERVISOR: REV. DR. J.K OPPONG
In light of theft cases where culprits steal valuables from homes, schools, hostels, etc and get away without being easily identified by victims and security officials, a GSM alarm system is considered in this project as a solution to help curb the spate of theft cases. The project addresses the design and implementation of a practical home alarm system. The system realizes its mobile notification capabilities via mobile phones through a GSM network. The system works independently under an existing GSM network and also has recorded surveillance footage. Home-owners or end-users are alerted to any intrusions on their properties via text message anywhere they are and at any time the intrusion takes place. They are also assured of identifying the culprits due to the video surveillance. Apart from homes, this system can be applied to hostel rooms, offices, shops, etc.
PIR sensor – Passive Infrared Sensor
GSM – Global System for Mobile communication
PCB – Printed Circuit Board
PWM – Pulse Width Modulation
IDE – Integrated Drive Electronics (A standard for interfacing computers and their peripherals) f.
LED – Light Emitting Diode
TCP – Transmission Control Protocol
IP – Internet Protocol
Li-po battery – Lithium Polymer battery
WSN – Wireless Sensor Network
MCU – Micro-controller Unit
People all over the world fall victim to theft and sometimes more grievous offenses in the comfort of their own homes. To combat this, home-owners employ the services of companies and personnel (who or which are specially trained for this purpose) to keep watch of their properties while they are away or at night. Due to the high wages paid to these security companies and personnel, relative incompetence of personnel and mistrust, most home-owners have resorted to the use of home security alarm systems.
This literature review gives an insight into the types of alarm systems, what makes one alarm system unique from the other and in general, the merits and demerits of the types.
In an article posted in  titled ‘types of home alarms,’ various types of alarm systems were mentioned and explained. This article paired two different sets of types of alarm systems and distinguished between the types in a set. The pairings were: MONITORED vs. UNMONITORED type of alarm systems and the HARD-WIRED vs. THE WIRELESS type of alarm systems.
Monitored Alarm Systems (MAS): According to , the MAS alerts a central call center when an alarm is triggered. The call center then checks with the homeowner to see if everything is okay by calling them. In essence, what  is saying is that people have been stationed at a central point (headquarters) of the security company and are tasked to monitor the alarm statuses of each registered home-owner. When an intrusion is detected, the alarm goes off and in effect a signal is sent to the central station. This signal could be sent via cable or wireless means. When this signal is received at the central station, most security personnel (alarm monitors) wait, normally, between 30 – 45seconds before calling the home-owner or the police. This is done because, first of all, it is assumed the home-owner had entered the premises and is making his way to unarm the alarm system. This is done mainly to prevent false alarms. If after the specified time-period the alarm is not disabled by the home-owner, security personnel then call the home-owner to confirm whether or not everything is okay. If the home-owner confirms to them that everything is, indeed, fine, then the security personnel ignores the alarm. Nevertheless, security...
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