CCTV ____________________________________________________________
Closed circuit television systems are intended for real-time surveillance activities and / or targets to be protected and record images for periodic review, alarms checking, alarm intervention assistance or post-event analysis.
For image acquisition devices, the most common are:
indoor or outdoor fixed CCTV cameras
indoor or outdoor mobile CCTV cameras,
megapixel cameras
fixed , transfocal or varifocal lenses
visible or infrared spectrum lighting equipments.
To support the surveying and recording functions, the most common equipment are:
video monitors;
video multiplexers and matrices;
digital image recorders;
image transmitting equipments on electric cables, optical cables, radio and data networks.
Closed circuit television systems may be components of alarm systems and intrusion protection as specified in GD 1010/2004. CCTV systems may contribute to the intrusion detection function by automatically detecting the movement of suspicious activity, the appearance or disappearance of objects.
Modern trends in mind:
European standards harmonization on closed circuit television systems for security applications (the family of SR / EN 50 132);
implementation of closed circuit television functions through IT&C technologies in both the imaging and processing, and their classification and archiving;
extending the use of high resolution (megapixel) CCTV cameras.