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- CCTV & Surveillance System
CCTV & Surveillance System
CCTV stands for Closed-circuit television. CCTV use video surveillance cameras or security cameras to transmit a signal to a specific place, on a limited set of monitors. There are different types of CCTV surveillance cameras, i.e. dome cameras, bullet cameras, box cameras and pinhole cameras.
The entire network of Security cameras and CCTV is a complete surveillance system. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point, point to multipoint, or mesh wireless links. CCTV system is often used for surveillance and security in areas that may need monitoring such as banks, casinos, airports, home and office.
In industrial plants, CCTV Surveillance Camera system 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 surveillance systems may operate continuously or only as required to monitor a particular event. A more advanced form of CCTV Surveillance system, utilizing Digital Video Recorders (DVR), provides recording for possibly many years, with a variety of quality and performance options and extra features such as Smart phone stream, motion detection and email alerts.
More recently, decentralized IP based CCTV Security cameras, some equipped with megapixel sensors, support recording directly to network attached storage devices, or internal flash for completely stand alone operation. Surveillance of the public using CCTV Security is particularly common in the UK, where there are reportedly more Security cameras and Surveillance per person than in any other country in the world. Many video surveillance cameras are installed outdoors with outdoor housing and infrared LED night vision, some indoor security camera systems have mutiple channel digital video recorder (DVR) to recorde video surveillance from 4,6,8 even 12 channels of CCTV surveillance cameras.