CCTV surveillance systems have evolved since their inception in 1942. Early systems used analog cameras and recording, while modern systems use digital IP cameras that can transmit video over the internet. CCTV systems use cameras to transmit video and audio signals to a central recording hub for live or recorded viewing. Common types of cameras include indoor, outdoor, IR, dome, bullet, hidden, and PTZ cameras. Systems can be wired using coaxial or network cables, or wireless using radio transmitters and receivers. CCTV is widely used for security monitoring of buildings, facilities, prisons, and public spaces to deter crime and maintain records of activities.

1. Presented By:
Y.Mamatha
156C1A0430

4. HISTORY:
1942 – First CCTV security camera surveillance system
installed. German engineer Walter Bruch was responsible
for the design and installation of the CCTV
security camera surveillance system.
1956 – First VCR produced by Ampex Corporation team
led by Charles Ginsburg. 19 year old engineer Ray Dolby
was also part of the team. Built for commercial business
use.
1960’s – First digital camera signals used in cameras over
analog by NASA.
1972 – First VCR for home use
produced by Philips.
1996 – The first IP camera was released in 1996 by Axis
Communications.
1998 – First consumer digital video recorders (DVR)
released to the public.

5. HOW DO SURVEILLANCE
CAMERAS WORK?
CCTV camera systems includes 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.

6. TYPES
Surveillance cameras are being installed
everywhere for purpose of security and crime
prevention and detection. There are many
types of surveillance cameras are available for
this purpose.

7. INDOOR CAMERA

8. OUTDOOR CAMERA

9. IR DAY/NIGHT CAMERA

10. DOME CAMERA

11. BULLET CAMERA

12. HIDDEN CAMERA

13. PAN TILT ZOOM CAMERA

14. TYPES OF CCTV SYSTEMS
CCTV Systems are broadly divided
into two types.
These are:
Wired CCTV System
Wireless CCTV System

15. 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.

16. Block diagram

18. 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.

19. USES OF CCTV
CCTV is commonly used for a variety of purposes,
including:
Maintaining perimeter security in medium-to-high-
secure areas and installations.
Observing behavior of incarcerated inmates and
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.

20. ADVANTAGES
Deters Crime: The presence of CCTV camera system for
surveillance will reduce petty thefts and vandalism in shops,
malls and other public places.
Helps Maintain Records: The images and videos captured by
a CCTV camera system are often recorded and stored into a
database.
Protects Employees: This is particularly helpful in customer
service centers. The employees providing customer service may
sometimes be subjected to verbal abuse or physical attacks.
CCTV camera system helps to identify such instances and act
immediately. It is also helpful to keep a tab on the activities of
the employees.
For Evidence in Lawsuits: In legal cases of thefts and other
forms of crime, videos and images provided by the CCTV
camera system can serve as a valid proof and evidence against
the defaulter.

21. 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.

22. Conclusion:
Radiation safety control is requisites for lasting
nuclear industry
Our various efforts will help to improve radiation
safety control whether it is large or not
Actually, CCTV system is small effort but the such
effort will makes a good fruit