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A CCTV system allows you to monitor the
interior and exterior of your house anytime of the day and you
may want to consider it as a supplement to your home security
system. Such a system includes a surveillance camera or cameras,
lenses specially selected to watch particular areas of the home,
and a recorder
that records what the camera or cameras see. It comes in
hardwired or wireless form.
A home CCTV system can be used in many
ways. Depending on the size of your home, you may need as little
as 1 camera for your system. You can install just one in front
of your front door if you just want to see who is at your front
door. It can be recorded while you are away and you can check
the recorded video to see who dropped by and identifying
burglars before they strike. While you are at home, you can use
it to watch over your child's playtime while you are doing your
chores. The use of a CCTV system is limitless but before getting
one, follows these steps:
-
What to monitor.
Exterior cameras are used to monitor areas such as the garage,
backyard, or outside a gate or fence. Interior cameras can be
used to monitor your kids while you are away. This will
determine the number of cameras you need.
-
Field of view of
the CCTV systems. This will determine the size and
type of lens. There are four types of lenses for CCTV use:
fixed aperture, manual iris, auto iris and zoom. A zoom lens
enables you to perform close-ups and get a better view of
object.
-
The number of cameras used will
determine whether you need a switcher, a multiplexer or
multiple monitors.
-
If you plan to record more than 4 to 6 hours, you will need a
commercial grade recorder. Otherwise, you can use a
standard VCR. If you want full screen recording of multiple
cameras, you will need to include a multiplexer.
CCTV security systems are not
expensive by itself. The common thinking is that CCTV
security systems are for the rich and most commonly installed in
big houses. That is where you are wrong. With the number of
manufacturers increasing, the price of CCTV security systems has
dropped drastically over the years. A package that includes a
monitor and 4 black and white cameras can be bought at less than
$500.
Automated
CCTV Security system
An automated
CCTV security system does not require human intervention. Not so
long ago, this type of security system is normally associated
with the hiring of security guards to constantly monitor the
monitors for intruders. Now, CCTV systems can be fully automated
and is capable of detecting intruders on its own. All it needs
is to be connected to sensors such as motion sensors. If the
motion sensor is triggered, the alarm will sound and the CCTV
recorder will start recording video.
Modern CCTV security system even
has remote surveillance capability.
Using the internet, it allows the owner to view the video stream
from remote location such as the work place.
An example of how this type of system operates:
- The sensor is triggered.
- The alarm starts giving off
loud siren.
- The CCTV recorder starts
recording.
- The owner is notified through
phone.
- The owner will connect back
to the home CCTV system using the internet.
- The owner can decide through
the live stream video whether it's a false alarm or a real
situation.
- He or she can immediately
call the police or remotely switch off the alarm.
With advancement in
image processing,
intelligent software connected to the CCTV cameras is
able to tell whether the image obtained by the cameras show an
intruder. It is an alternative to using the sensors.
Automated CCTV security system will significantly reduce the
cost of a security system by eliminating the need to hire
security guards. It also offers peace of mind because you don't
have to monitor the cameras all the time or worry whether your
guard is sleeping on the job.
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An
axiom in CCTV security applications is:
The better the light, the better the picture
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More
about
CCTV security system:
Cameras
Lenses
Monitors
Recorders
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About A Security System:
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