Analog Video Monitoring System
older analog video monitoring, was also to become the first generation of video
surveillance systems,Construction of the CCTV system simulation system is used
by video cameras, monitors, tape recorders, etc..For more complex requirements
that have gone more and more into the video signal through simulated
surveillance video signal output matrix to achieve.As dozens of simulated
difficult road switching matrix, which are not linked alarm system,not on the
front to control the price expensive, complicated operation and management that
it would be very difficult to achieve larger systems.has been gradually
eliminated.Mainly in the domestic market of digital signal monitoring and
control of the analog video surveillance Digital Video Disk two types of
products.The former technical developments have very mature and stable, has been
widely used in practical application.The latter is the recent rise in computer
technology and video image compression.image transmission technology at the core
of the new video surveillance system, which solved the simulation system to many
abuses.First-generation analog video surveillance systems are the main features
: video, audio signals in the collection, transmission,Storage were simulated
form of the highest-quality video;
2, after several decades of development, the
technology is mature, powerful system, perfect;However, simulations are unable
to overcome the shortcomings of the following : one, because speed to transmit
video signals.it only applied to smaller geographical areas; 2, and information
systems are unable to exchange data;
3.limited to the monitoring control center,
less flexibility in the application of four, is not easy to exaggerate
development;
