CCTV System - Close circuit television System Building Services Technology Ancillary Services

1. P.Kemarupan
JF/BST/17/006
Building Services Technology

2. CC TV
What is CCTV?
CCTV (Close Circuit television) The use of video cameras
to transmit a signal to a specific place, on a limited set of
monitors.

3. Simple CCTV System
It’s basic from cctv is simply a camera hooked up to a monitor.
Many cameras One monitor
By adding multiplexer we need only all monitor to view many
cameras and all camera images are recorded

4. Element of CCTV system
1. Camera
2. Lens
3. Monitor unit
4. DVR (Digital Video Recorder)

5. CC TV System Types
1) Wired CCTV System
2) Wireless CCTV System

6. Advantage of CCTV camera
1. Traffic monitoring
2. Building security
3. Gather Evidence
4. Maintain Records
5. Decrease the crime level

7. Disadvantage of CCTV System
 There are hackers all over the world and CCTV cameras are very
much keen on becoming the victim of such misdeeds which again
leads to a corrupted security system.
 The cctv camera issue of peoples privacy
 CCTV is very expenssive to purchase cameras and other equipment
neede for a cctv system

8. CC TV Camera Types
1. Indoor camera
2. Outdoor camera
3. IR day/ Night camera
4. Dome Camera
5. Bullet Camera
6. Vandal proof Camera
7. Hidden camera
8. PTZ camera

9. Indoor Camera
1. Indoor camera used for indoor security places
2. These are suitable for security in homes,schools,offices
Outdoor Camera
1. Outdoor camera is used for outdoor places
2. They are mostly used entry and exit points
3. These cameras have hard still vandal proof casing and weather proof
casing.

10. IR day/ Night Camera
 Ir day/Night cameras are used for high alert security areas
Ex- Military purpose
Parking
Dome Camera
 Cameras are installed inside a dark dome and are design in a way
that unnoticed by visitors
 This camera can be rotated
 These camera used in public place, railway station

11. PTZ Camera
 These types of cctv cameras allow a person controlling the
surveillance. Of an area to move the camera remotely
 PAN- left to right
 Tilt- Up to down
 Z- zoom
Bullet camera
 Cylindrical
 Require long distance viewing

12. Network / IP cctv cameras
 These cameras wireless ,transmit images over the internet
 IP cameras are easier to install than analog cameras because they
don’t require a separate cable.
Wireless CCTV Camera
 No all wireless cameras are IP-based
 Some wireless cameras can use wireless transmission

13. HD CCTV Camera
 High definition cameras
 The high definition cameras are relegated to markerts,casions and
banks
 These gave operators the ability top zoom in with extreme clarity.

14. Some application of CCTV Cameras
 Bars /pubs/Night club
 Car park
 Historic sites
 Hospitals
 Schools
 Shops
 Swimming pools
 Reception areas
 Gardens

15. Monitor
 A monitor for viewing the live and recorded footage.

16. Co-axial
 Cabling to connect the cctv cameras to the DVR
Ethernet
 It is used to connect the network cctv to the NVR or NDVR

17. Connectors
1. BNC- For co-axial cable
2. RJ 45- Ethernet cable
DVR
 Digital video recorder with a hard drive which will record and allow
playback of the video footage.

18. Back side of a DVR
1. VGA Port ( Video Graphics Array )
2. HDMI Port ( High-Definition Multimedia Interface )
3. USB Port ( Universal Serial Bus )
4. LAN Port (Local Area Network)

19. Simple CCTV System