| PC platform based on Digital Video Surveillance (DVR) computer platform based on
Digital Video Surveillance (DVR) in recent years is the rapid development of
second-generation Video Surveillance System,DVR equipment is at the core of the
video surveillance system.In late 1990, along with multimedia technology and
video compression technology, network communications technology,the rapid rise
of digital video surveillance systems.DVR use PC and Windows platforms.in the
installation of computer software, video compression cards and the corresponding
DVR.1/2/4 video card can connect different types of video, audio and video
support at any time.is the first generation of digital simulation of the control
system upgrade options, and the transformation of traditional surveillance
systems.not suitable for the new monitoring system, the demand for remote video
signal transmission (over 1-2 km) system.DVR system features :
1, video, audio
signals in the collection, storage key to a digital format, high quality;
2.system more powerful and perfect;
3, and information systems can exchange
data;
4, the flexibility in the use of better;DVR surveillance system from the
point of transmission to the monitoring center for simulation, and many
first-generation system similar shortcomings :
1.remote video transmission
required to achieve laying (leased fiber), the installation of video transmitter
equipment in the fiber ends.the high cost of the building is hard to maintain,
and a larger maintenance costs;
2, based on the Windows platform.The system is
not very stable;
3.There is also a part of the market for high frame count and
the pursuit of a multi-card design superposition of multiple single-card equipment.However, the bus is still on the computer for transmission,
processing, PCI system will be the bottleneck.As information technology is
unlikely that there will be a qualitative leap in the continuing development of
embedded systems in recent years has been engaged in forms of DVR.Embedded
System is the application center, the software and hardware that can be trimmed
to adapt applications to function, reliability, cost,The combined volume of
strict requirements dedicated computer system is dedicated to the monitoring
system customized computer systems.Embedded processor embedded system is mainly
related to support hardware, operating system and application software, embedded
system components.It combines hardware and software into an independent work
"device."Embedding means the DVR system because of its high reliability, the use
of the banking system to facilitate the installation of wide application in
particular,We usually called 2.5-generation monitoring system for DVR.Less
flexibility in the application of four, is not easy to exaggerate
Network camera server:
Network camera:
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