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Tuesday, 07 December 2010 14:13 |
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CCTV is a collection of video cameras used for video surveillance.
CCTV is different from broadcast television as all the equipment is directly connected together with cables or wireless transmitters that can not be received by standard television aerials or equipment.The transmissions of the video signals are only intended to be accessible by the equipment on its dedicated closed circuit.
CCTV is generally used in areas where there is an increased need for security, such as banks, airports and town centres. CCTV was initially developed as a means to increase security for banks but over time it has developed into a cost effective means of general video surveillance and home security.
A basic CCTV system comprises of the following:
- Camera, lens and power supply.
- Recording device, VCR or a digital video recorder.
- A monitor.
- Wiring
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Last Updated on Tuesday, 07 December 2010 14:27 |
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Sunday, 27 June 2010 19:11 |
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Bandwidth-hungry surveillance video running over an existing structured cabling network can result in ongoing organizational contention. Here's how to find a satisfying resolution for all concerned.
A new generation of IP (Internet Protocol) CCTV technology is appearing onLAN networks that allow several people to view security cameras through a simple click on a computer, or to access a camera that could be across the street or across the country. But as CCTV IP-based cameras—especially high-definition mega-pixel cameras—become more sophisticated, they also bring on new challenges to security and IT managers.
Bandwidth-hungry surveillance video running over an existing structured cabling network can result in ongoing organizational contention. Here's how to find a satisfying resolution for all concerned.
A new generation of IP (Internet Protocol) CCTV technology is appearing onLAN networks that allow several people to view security cameras through a simple click on a computer, or to access a camera that could be across the street or across the country. But as CCTV IP-based cameras—especially high-definition mega-pixel cameras—become more sophisticated, they also bring on new challenges to security and IT managers.
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Last Updated on Monday, 28 June 2010 00:14 |
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Sunday, 27 June 2010 18:22 |
Closed-circuit television (CCTV) is the use of video 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, point to multipoint, or mesh wireless links. CCTV is often used for surveillance in areas that may need monitoring such as banks, casinos, airports, military installations, and convenience stores. It is also an important tool of distance education.
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.
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Last Updated on Sunday, 27 June 2010 19:31 |
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