15-05-2013, 04:10 PM
MOTION SECURITY/THEFT PROTECTION USING MATLAB PROGRAMMING
MOTION SECURITY.pdf (Size: 185.84 KB / Downloads: 111)
Abstract
Motion can be detected by measuring change in speed or vector of an object or objects in the field of view. This can be achieved either by mechanical devices that physically interact with the field or by electronic devices that quantify and measure changes in the given environment. Motion sensors are often used in indoor spaces to control electric lighting. If no motion is detected, it is assumed that the space is empty, and thus does not need to be lit. Turning off the lights in such circumstances can save substantial amounts of energy. In lighting practice occupancy sensors are sometime also called "presence sensors" or "vacancy sensors".
Introduction
The Motion in any living object due to its body tem-perature can be figured out in any direction with or without speed in the field of view. This can be achieved either by mechanical devices that physically interact with the field or by electronic devices that observe and measure changes in the given environment. Motion sensors are often used in indoor spaces to control electric lighting. A motion detector i.e. Passive Infrared sensor (PIR sensor) is an electronic device that is being used to measure the infrared (IR) light radiating from objects in its field of view. PIR sensors are often used in the construction of PIR-based motion detectors. Apparent motion is detected when an infrared source with one temperature, such as a wall. All objects above absolute zero emit energy in the form of radia-tion. Usually infrared radiation is invisible to the Human eye but can be detected by electronic gadgets designed for such a purpose. The term passive in this instance means that the PIR device does not emit an infrared beam but merely pas-sively accepts incoming infrared radiation. “Infra” means below our ability to detect it visually and “Red” is because of its Color representation which shows the lowest energy level of the color RED and applies to many sources of invis-ible energy.
A Bit about Image Acquisition in MATLAB
Image Acquisition Toolbox enables you to acquire im-ages and video from cameras and frame grabbers directly into MATLAB. You can detect hardware automatically and configure hardware properties. Advanced workflows let you trigger acquisition while processing in-the-loop, perform background acquisition, and synchronize sampling across several multimodal devices. With support for multiple hard-ware vendors and industry standards, you can use imaging devices ranging from inexpensive Web cameras to high-end scientific and industrial devices that meet low-light.
Conclusion
The camera takes the picture according to the program as fixed while burning the MATLAB programming for Im-age Acquisition. When the camera takes the picture it sends to the computer for observation using the PIR sensor & as there is some difference measured an alarm blows for securi-ty purposes. Hence this project will help as the security as-pect for human being, which will act as important aspect for the day today life, in MILITARY Security purposes, in En-gines etc.