28-01-2012, 11:38 AM
DESIGN AND IMPLEMENTATION OF LASER BASED HOME SECURITY SYSTEM
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INTRODUCTION
Security has been discovered to be a very important factor to be considered in all aspects of livelihood; humans naturally, have been instinctively created to be self-protected, an exemplary explanation is the working principle of the human brain and how it alerts and protects all parts of the body from danger;
CASE STUDY OF HOME SECURITY SYSTEMS
The Security market is arguably the largest M2M segment to date, primarily with the adoption of wireless technology based on antiquated analog cellular and proprietary data networks. Most of these security applications have been designed to eliminate fixed line services to transmit alarm information to an alarm company
Indoor Home Security Systems
Passive infrared detectors -The passive infrared detector (PIR) is one of the most common detectors found in household and small business environments because it offers affordable and reliable functionality. The term passivemeans the detector is able to function without the need to generate and radiate its own energy (unlike ultrasonic and microwave volumetric intrusion detectors that are ―active‖ in operation).
Outdoor Home Security Systems
Vibration (shaker) or inertia sensors-These devices are mounted on barriers and are used primarily to detect an attack on the structure itself. The technology relies on an unstable mechanical configuration that forms part of the electrical circuit. When movement or vibration occurs, the unstable portion of the circuit moves and breaks the current flow, which produces an alarm.
