Detailed Study of CCTV Cameras , DVR,NVR, IP , how to deal with camera , d

2. CCTV SYSTEM
There is a phrase commonly used among
internet users i.e. “Nothing is Safe”. Adhering
to this phrase industries have been trying
from years to come up with security systems
that are completely safe. But this task has
been almost impossible as always there is
some or the other bugs found. Nevertheless
there are certain products which have been
very efficient in their working such as CCTV
Cameras, spy pens, etc. The main focus here
is over CCTV Cameras, its usage and future
advancement in the latter.

3. How Do CCTV Cameras Work?
CCTV camera systems has one or more
cameras which are used to send video,
images and audio data to a monitor.
Essentially, these camera systems use
cameras to transmit the signals to a main
hub which then records that data for later
viewing or live viewing if you have full time
security personnel on your premises.

4. Types Of CCTV Cameras
CCTV cameras are being installed every where for purpose of security and crime
prevention and detection. There are many types if CCTV cameras are available for
this purpose. These are:
• Indoor Camera
• Outdoor Camera
• IR Day/Night Camera
• Dome Camera
• Bullet Camera
• Vandal Proof Camera
• Hidden Camera
• Pan Tilt Zoom Camera

5. Types Of CCTV Systems
CCTV Systems are broadly divided into two types. These are:
• Wired CCTV System: Wired CCTV systems connect the camera to the
recording device and monitor with the help of standard coaxial cables or
Unshielded Twisted Pair(UTP) cables or fiber optic cables. The image data is
usually transmitted over a coaxial cable. The signal transmitted over these
cables is then fed into a monitor or set of monitors if the image needs to be
visible indifferent locations.
• Wireless CCTV System: Basically, Wireless CCTV systems are similar to wired
CCTV systems. The difference is that a radio transmitter is attached to the
camera. A radio receiver then attached to the input on the monitor system or
computer. Wireless systems are useful when the distance between the
camera and the monitor is too far to be practical for a cable run.

6. Applications Of CCTV
CCTV is commonly used for a variety of purposes, including:
• Maintaining perimeter security
• Observing behavior potentially dangerous patients in medical facilities.
• Traffic Monitoring
• Building and ground security.
• Overseeing locations that would be hazardous to a human. for
example, highly radioactive environment.
• Obtaining a visual record of activities where it is necessary to maintain
proper security. for example, in banks, casinos, or airports.

7. The Future Of CCTV Cameras
The future of CCTV is – IP CCTV. IP CCTV stands
for Internet Protocol – Close Circuit Television.
With IP CCTV the video management has
become so simple. You can store and retrieve
both analog and digitally recorded video
footage and access it via an internet
connection anywhere in the world. Especially
with the growth of Cloud Computing, the IP
CCTV has seen a massive boom.

8. Conclusion
When used in moderation, under the correct guidance, Surveillance
cameras can be invaluable in aiding the police in their investigations.
CCTV can also act as a twenty-four hour police presence, helping to
make the public feel safer. If used excessively however, the massive
increase in the number of CCTV cameras can lead to an invasion of
privacy and violation of human rights. The cost of the cameras has also
been an issue that has caused many debates as to whether the cost is
worth the results. There needs to be reform into how the authorities
use the existing surveillance cameras to enhance their effectiveness to
their impact on crime.

9. Thank You