1. CONTENTS
CCTV systems.
History
How do CCTV cameras work ?
Setup of CCTV system.
Types of CCTV cameras.
Wireless CCTV systems.
The future of CCTV cameras.
Importance of IP camera over other CCTV cameras.
2. Closed circuit television(CCTV) system is the use of
Video cameras to transmit a signal to a specific,
limited set Of monitors.
It differs from broadcast television in that the signal
is no openly transmitted
3. 1942-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.
1960-First digital camera signals used in cameras over analog by NASA.
1996-First internet protocol(IP) was released by Axis Communication
5. HOW DO CCTV CAMERAS WORK ?
CCTV camera captures images, and
transmit continuous video signal .
The DVR keeps all these analog signal,
digitalize it, and keep the record in the
HDD
6. TYPES OF CCTV CAMERAS
Indoor cameras
Outdoor cameras
IR cameras
Dome cameras
Bullet cameras
7. INDOOR CAMERAS
1. Used for indoor security mechanism.
2. Suitable for securities in
Homes
Schools
8. OUTDOOR CAMERAS
1. Used for Out door places
2. Mostly Used for entry and
exit point
3. These camers has hard shell
vandal proof casing
9. BULLET CAMERAS
o Bullet cameras are small (2 to 2.5 inches long)
o These are limited to a fixed focal length lens.
o Bullet cameras are good for small spaces, the
images may have slightly cut-off corners
because the camera shape and design can
interfere with the actions of the of the
camera lens and filter.
10. IR cameras and
working
IR cameras stands for Infra Red cameras
The lens Of the camera is surrounded by LEDs .
It work on principle by sensing the amount of light in surrounding.
12. DOME CAMERAS
It is a 360degree cameras.
It works on the principle of
movement sensors.
This camera is also known as
hidden camera
13. WIRELESS CCTV SYSTEMS
The camera contains a wireless
radio (RF) transmitter.
This transmitter broadcasts the
camera's video, which can be
picked up by a receiver, which will
be connected to a monitor or
recording device.
Some receivers have built-in
storage, while others must be
connected to a DVR.
14. THE FUTURE OF CCTV CAMERAS
The future of CCTV is –IP CCTV.
We can store and retrieve both analog and digitally recorded video footage.
IP CCTV has seen a massive boom.
