Purchase New Models of CCTV Cameras at Best Price in Bd - Unix network jessore Bangladesh.
Main Function & Usability
Closed-circuit
television camera or
CCTV camera invented by can capture images or
recording videos for surveillance. This kind of setup has made generally
for monitoring behavior, activities, or other changing information for
managing, controlling, or protecting people. This close observation from
a distance usually used by private or Governments organizations for
intelligence gathering, prevention of crime, the protection of a
process, person, group or object, or the investigation of crime. These
are useful for intelligence organizations and business firms to prevent
serious crimes such robbery and kidnapping and collect information to
optimize productivity.
Types of Cameras
Based on
sending signals to a storage device of the recorder, video
CCTV cameras
are categorized into two types such as analogue and digital. The
captured data can also be recorded in to desktop computer or
laptop
computer.
Analogue Cameras
This type of cameras passes
analogue signals as pictures that must be recorded at slow speed
continuously running tape. The usual rate would be four frames per
second so that a three-hour tape can run for 24 hours. This whole
process captures frame by frame that looks like snapshots and the blur
image comes out. To avoid this flaw analogue signals can also be
converted into a digital signal through video capture card installed
into computer. Using an DVR in a computer recording can be stored as
non-analogue media. These recorders are more compatible than PC based
recording because it is built for this kind of solution, requires low
maintenance and supports medium to large number of cameras.
Digital Cameras
This
type of camera directly records using a digital signal which can be
saved directly to a computer. Though the signal is compressed at 5:1 but
DVD quality can be achieved through greater compression with slightly
lower quality. Uncompressed video could quickly fill up the storage
therefore sometimes motion detection can be used in case of uncompressed
quality recording. Standard-definition video cameras are unable to cope
up with 320,000 pixels, so they usually capture horizontal and vertical
fields of lines and blend them together at the speed of 30 frames per
second.
IP Cameras
IP camera or Internet Protocol
camera that transmit data through internet. This type of surveillance
cameras only required of a local area network that can be accessed
through that ethernet connection. Many IP cameras need a central
network video recorder (
NVR) to manage video recording and alarm system.
Other cameras can be operated decentralized manner with no
NVR as it is
capable to store on local or remote storage device.
One Stop Surveillance Solution
Unix Network has the available
CCTV camera brands such are well in stock with best market price for the consumers. We have
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