About-network-video:
video-solution:
Related-links:
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| Video Surveillance Camera Technology
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Video surveillance cameras are more prevalent today than anytime in the past.
Their use has surged along with the boom in technology as this new technology
becomes cheaper and more sophisticated. There are numerous types and styles of
surveillance cameras. For example, there dome cameras, hidden cameras, smoke
detecting cameras, and "smart" cameras that are equipped with motion detectors,
just to name a few.
Video surveillance cameras are classified according
to the technology that is used in their design. CCTV [closed circuit TV] cameras
are those that have a completely closed circuit and all the components are
connected together. On the other hand, advanced digital cameras are those that
connected by a circuit but can be located at any site around the world. Digital
video recorders [DVRs] do not need VCR-s and other recording equipment in order
to capture or record on-site activities. The software is designed to
automatically record unusual activity even in odd hours of the day.
You
can find video surveillance cameras used in many different places. They are used
in school buses and schools to monitor activities of students. You will also
find them being used in retail establishments, public gathering places, traffic
reporting, and many more places. Small hidden cameras know as nanny cams have
been used successfully by parents concerned about their children-s care from
sitters and caretakers. Hidden cameras are also available for sale in “brick and
mortar “stores and on the Internet. You find these cameras hidden in clocks,
smoke detectors, and soft toys such as a teddy bear, just to name a
few.
This style of camera is differentiated according to its
effectiveness. A 360-degree revolving dome camera can capture images anywhere on
the site. Infrared surveillance type cameras are found used by government and
law enforcement agencies such as the SWAT for tailing suspects at night. They
too are found mounted in police helicopters to aid them in searching suspects
hidden in brush by either day or night.
Detective agencies and security
agencies use these cameras to monitor people at their client-s request. It is
currently lawful in most areas to install a camera in a common public area and
record public activities; however, there is a lot of debate over this subject.
Even government agencies such as the Federal Bureau of Investigation [FBI] need
a warrant in order to carry out video surveillance in private places or homes.
Small hand held cameras, also available in the marketplace, help monitor the
elderly and in nurseries and preschools where children are kept under
watch.
Video surveillance cameras are available in the price range of
$100 to $800 for the most part. However, it depends on the complexity of the
technology used in them. Well-made fake cameras are also available for as less
as $3, which act as deterrents for robbers and thieves but are not recommended
in some applications.
Network camera server:
TYHO wireless network video server
designed specifically for wireless video surveillance.
DM642 products based on the embedded system design
1500e network video servers
1500e through ISDN, PSTN, or xDSL Router, LAN,Wide
Area Network or the Internet to facilitate international
interconnection to achieve video transmission
1320e IP network video servers
carries a one analog video input;a conventional analog video output.
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Wireless network camera:
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