IP vs. Analog
There are are number of
reasons why you should choose an IP network camera for your
surveillance system. Sure, analog cameras have been around
longer, but the IP camera has proven its worth in
performance.
The IP tetwork camera has existed since 1996. During its
release, network cameras lagged a mile behind analog cameras
in professionalism. In the early years, IP network cameras
were simply thought of as web cameras used for broadcasting
events or objects over the Internet. Fast forward to a
decade later, and the good ol' web cams are now part of
hundreds of operating surveillance systems.
Catching Up with the Analog Camera
A few years after it's introduction, the IP network cameras
have been updated and upgraded to catch up with the analog
camera in terms of function. Today, the IP camera is at par
with the best analog camera in the market, even surpassing
it in some aspects.
Winning the Race Against the Analog Camera
Before you choose the model of the camera you want for your
surveillance system, you will first have to decide whether
you're getting an analog cam or an IP network camera. For
you to make the right choice, it is important that you first
understand the important differences between two. By the end
of this article, you should be able to understand how the IP
network surveillance camera gives you more value for your
money.
Interlacing
The first notable difference is seen in the camera's
interlacing. The IP network surveillance camera is at an
advantage in this criteria as analog cameras have
significant problems with interlacing. High resolution
analog camera are not able to capture fast-moving objects
and keep the quality of the image because, with in an analog
video signal, images are made of lines and all images are
created from two interlaced fields. While the analog camera
produces blurry images of fast-moving objects, the IP
network camera provides crystal clear images because the
whole image is captured at one time.
Power Over Ethernet
Getting power to an analog camera means hurdling a major
obstacle and shelling out a major amount of cash. With the
IP network camera, you have an IEEE 802.3af standard PoE
(Power over Ethernet), which means that your networking
devices get its power from an PoE-enabled switch over a
standard cable that transmits data and video. The device
offers major savings to IP camera users as the standard in
place means all models or equipment are compatible with the
device. PoE also gives the camera centralized backup power,
so they continue to work even with a power failure.
Megapixel Resolution
The analog camera follows the olf NTSC/PAl specifications,
which corresponds to 0.4 megapixels at 4CIF. The newer IP
Network cameras require a higher megapixel range. The higher
the resolution of the camera, the more the detailed the
coverage of large areas. The camera's higher resolution also
enables essential surveillance functions such as tilt, pan,
and zoom.
The above mentioned comparisons are just three of many
advantages offered by IP cameras over the analog version. If
you want to get a good surveillance camera, get an IP
network camera.
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