- published: 08 May 2016
- views: 7492
Closed-circuit television (CCTV) is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.
It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point (P2P), point to multipoint, or mesh wireless links. Though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that may need monitoring such as banks, casinos, airports, military installations, and convenience stores. Videotelephony is seldom called "CCTV" but the use of video in distance education, where it is an important tool, is often so called.
In industrial plants, CCTV equipment may be used to observe parts of a process from a central control room, for example when the environment is not suitable for humans. CCTV systems may operate continuously or only as required to monitor a particular event. A more advanced form of CCTV, utilizing Digital Video Recorders (DVRs), provides recording for possibly many years, with a variety of quality and performance options and extra features (such as motion-detection and email alerts). More recently, decentralized IP-based CCTV cameras, some equipped with megapixel sensors, support recording directly to network-attached storage devices, or internal flash for completely stand-alone operation.
You don't know my name
No need to know
I am the dark sick blind hate
Bad to the bone
I will destroy all holy - insurrection day
And on my day of glory - resurrection day
I will be awaitin' you
Rippin' you apart
Inside out
Inside out
Inside out
Inside hell
I am disaster
Lethal and bold
I am the evil master
Your final call
I will destroy all holy - insurrection day
And on my day of glory - resurrection day
I will be awaitin' you
Welcome to my home, I'll be waiting
Inside hell
Inside hell
Inside hell
Inside hell
Inside hell
Inside hell
Inside hell
Inside hell