Applications and Working of CCTV camera System:
CCTV cameras can also monitor patients – for instance, children or the elderly – to identify potential medical crises, e.g. Analog and digital strategies work differently but current CCTV networks use change software and hardware to convert analog to digital. This method is called retrofitting.
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A standard CCTV system contains:
· One or more cameras (analog or digital), each with a lens provided with an image detector
· A recorder – Either a classic videotape recorder for analog techniques or a Direct Video Recorder (DVR) or Network Video Recorder (NVR) for digital methods.
Analog - Use Bayonet Neill-Councilman (BNC) connectors on coaxial lines to transmit continuous video alerts. They are a relatively low solution but affordable and effective. There are more additional peripherals in an analog system, e.g. standard coaxial cables don’t usually transfer audio. Analog signals can be digitized, making it more cost-effective to go digital even with older tools. The images need a video capture card and can be stored on a PC or tape recorder. A step up, analog HD allows increased key over conventional systems (1080 pixels) and is backward constant with analog cameras and BNC.
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Digital – Digitalize signals at the camera level. These methods don’t require a video capture card as images are kept straight to a computer but need a (relatively) a large amount of space to store recordings, so they are usually laboriously compressed.
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