Practical-home-security-guide.com

One of the most popular choices for your home security is security cameras with DVR systems. These systems are available in different configurations and can be obtainable in both PC and standalone systems. You need not be an expert in computer to administer and handle a PC based surveillance system, although a little computer skills [...]

Most CCTV systems use video cassette recorders (VCRs) to record video images from the monitors.  Recordings make it possible to view events that may have gone unnoticed at the time they occurred or that may require close investigation later. Technological advances now make it possible to record images in digital form on a computer disk.  [...]

The monitor receives the transmitted electronic video signal from the camera and displays the image using a cathode ray tube (CRT).  Although similar in function to a TV set, a CCTV monitor provides higher lines of resolution (better picture quality) and accepts only video signals rather than RF/antenna signals. Lines of resolution refer to the [...]

Lens is made up of curved, ground and polished piece of glass or other transparent material used for the refraction of light. Their main function is to collect reflected light from objects and focus a clear, sharp image on the camera’s imager.  Typically, the more light that passes through a lens, the better the quality [...]

CCTV Camera converts the visible scene captured by a lens into an electric signal and transmit that signal to a monitor for viewing. Camera performance depends largely upon the reflected light at the scene and the quality of the cameras imager. To select proper equipment, it is necessary to determine the minimum lighting level (day [...]

A Closed Circuit TeleVision (CCTV) is a video magnification system consisting of a monitor interfaced with a video camera. Video magnification is achieved in two ways – the electronic conversion from the small camera imager to the larger display screen and the optical effect of the cameras zoom lens. The CCTV system provides high contrast, [...]