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It is impossible to imagine a modern security system without video surveillance. It is used for both security and control.
Video surveillance or CCTV / Closed Circuit Television is a closed circuit television system widely known throughout the world, which is actively used to protect various objects.
The latest video surveillance system is based on IP, i. via the Internet line referred to as "network video surveillance".
Currently, there are 2 main types of video surveillance systems: analog and IP systems.
Indoor (Indoor) - Not intended for outdoor use. They are mainly installed in heated rooms (offices, apartments) with minimal changes in temperature and humidity.
Outdoor - types of cameras where devices are protected from environmental influences. They are moisture resistant and, quite often, have a built-in heater.
The design of CCTV cameras
Dome Cameras. Used indoors, mounted on the ceiling or wall. The body looks like a transparent hemisphere, which, in combination with wide-angle and panoramic lenses, provides a large viewing angle;
PTZ cameras. A feature of the devices is the remote control of the camera rotation or the setting of automatic lens movement to follow a given route. More often used in outdoor video surveillance to control a large area or track cyclically moving objects; compact cameras. Video cameras in a miniature design are used for organizing covert video surveillance or mounting on small surfaces.
Cylinder cameras. They are used indoors or outdoors at objects where tracking of a small area is required with maximum clarity and the ability to enlarge details in the frame. The equipment uses telephoto lenses with a zoom function
Baby monitor (video nanny) - is a digital video surveillance camera that transmits image and sound from the room where the child is. You can watch the child from anywhere in the house (apartment) or even from anywhere in the world if the camera is connected to Wi-Fi.
A video surveillance system performs certain tasks, and without their clear formulation, this system cannot be built. It is necessary to clearly understand what you want: a general overview of the premises or territory, or, for example, monitoring a certain place with the ability to identify unauthorized persons.
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