CCTV- Introduction, How it work, types, Uses

1. cctv
(CLOSEDCIRCUITTELEVISION)

2. CCTV System
CCTV System is the use of
video cameras to transmit a
signal to a specific, limiterd
set of monitors. IT differs
from broadcast television in
that, the signal is not openly
transmitted, through it may
employ point to point wireless
links CCTV is often.

3. CCTV Camera
A security camera is used in
surveillance to monitor public
or private areas that need to be
monitored for security reasons.
Modern security cameras use
closed-circuit television
technology, which employs video
cameras that transmit signals to
specific limited set of monitors

4. HOW DO CCTV CAMERA WORKS?
CCTV camera system includes one or
more camera which are used to send
video image and audio data to a
monitor. Essentially, these camera
system use camera 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.

5. Types of CCTV camera
 Indoor camera
 Outdoor camera
 Day/night camera
 Dome camera
 Bullet camera
 Hidden camera
 Pan Tilt zoom camera

6. Indoor camera
Indoor camera as its
name suggest used for
indoor security
mechanism. These are
suitable for security in
homes, schools, offices,
hotels etc.

7. Outdoor camera
Outdoor camera is used
for outdoor places. They
are mostly used for
entry and exit points
with limited night
lighting. These cameras
have hard shell vandal-
proof casings.

8. Day /night cameras are
used for high alert
security areas where
surveillance needs to
happens day and
night. These cameras
are used for military
personals, in parking
lots and high security
zones.

9. Dome camera
Dome camera are installed
inside a dark dome and
are designed in a way that
they go unnoticed by
visitors. These cameras
can be rotated and titles
manually. Used in public
place like railway
stations, bus terminals,
other areas where there is
huge gathering of people.

10. Bullet camera
Bullet cameras are
placed inside bullet
shaped housing and
they are used in
residential places as
well as commercial
places. They are
small in size, have an
integrated design and
water proof also.

11. Hidden camera
Hidden camera are compact
in size and are used for
secret monitoring. They are
usually installed in public
places like department
stores, theaters, clubs etc.
hidden cameras have a
built-in recorder that
recorder that records and
broadcasts simultaneously.

12. PAN Tilt zoomcamera
It offers the ability to
view and zoom in all
directions. We can
even set the camera to
automatically rotate to
different fields of
vision

13. Uses of CCTV
 Maintaining perimeter security in medium to high
secure are as and installation.
 Observing behavior of incarcerated immates and
potentially dangerous patient in medical facilities.
 Traffic monitoring
 Building and ground security
 Overseeing locations that would be hazardous to a
human.
 Obtain a visual record of activities were it is necessary
to maintain proper security. For ex. Banks, airports.