Web Based Security System

Security systems play an important role in the protection of lives and investment. The aim of this project is to design an efficient and cheap security system, which is accessible from any part of the world through the internet, and can be employed in every facet of the economy. This is achieved by incorporating various subsystems (such as surveillance, intruder control, access control, fire detection, etc.) into the security system with a single control unit. The conceptual model includes the following modules: Access control unit (Biometrics), Smoke detector unit, Temperature sensor unit, Intruder detector unit, Surveillance unit, Alarm system unit, and Web based monitoring and control unit. The main control unit is a microcontroller which performs real time monitoring and is interfaced with a PC. The PC runs an application that consists of a web based Graphical User Interface (GUI) which displays access characteristics, sensor levels and security status which can be monitored and controlled by an administrator (a human user). Sensory responses, fed to the PC by the microcontroller, is displayed on the web based GUI. The PC application controls access to restricted resources and contains a database of activity and access logs. The security cameras are interfaced to the PC via USB port and transmit over the internet using the TCP/IP protocol. The web-based security system was designed and implemented using simple electronic components, circuits and computer processing power.