Video surveillance systems can provide not only continuous operational control of the situation at the facility, but also automatically detect intrusion into a controlled space, to a video alarm event or continuous recording of the entire video. Video surveillance systems - CCTV security system usually CCTV system are two of the turn: * external (perimeter) - used for perimeter protection object * Internal - used to protect the interior of the object. Key elements of surveillance systems include: * Television cameras: black and white (monochrome) or color, high or normal authorization; with control lens aperture or without it; with electronic shutter or without it fixed and rotary devices for, with remote control or not, etc. * Device digital video processing: sequential or matrix switches, multiplexers, Quad, VMD analogvye or digital, computers, * Device Registration: VCR; system digital recording to hard disk * display devices: color or black and white video monitors, video printers, monitors, computers, * Device management: system controllers, control panels cameras, PTZ and matrix switchers, computers. CCTV systems are built in accordance with the requirements of security, the physical characteristics of the object and the financial capabilities of the Customer. Surveillance cameras. Alarm systems - perimeter protection is usually the objects of protection and control of CCTV are: * the building adjacent to the area, including wall and freestanding buildings; * entrance gates, doors, gate, approaches and entrances * input and elevator halls entrance, apartments. The system design is necessary to follow those steps: * a detailed study of the object and the identification of vulnerable areas * definition of controlled areas and their number and differentiation zones in order of importance * the formulation of general requirements to the system, * the establishment of the required number of equipment and requirements for each of her mind * solution issues of technical cooperation elements of the system: to synchronize equipment, provided food, different types of video transmission (over the air or wire) * Development of system structure (Scheme compounds of various elements into a coherent whole) * definition of operation of the system.

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