2. CONTENTS
INTRODUCTION TO CCVM
NETWORK COMPONENTS USED IN
COMMUNICATION SYSTEMS
MAJOR UNITS OF OLD SYSTEM CCVM
SPECIAL FEATURES OF CCVM
IP CCVM SYSTEMS
IP ADDRESSING MECHANISM
ADVANTAGES AND DISADVANTAGES OF IPCCVM
CCVM VS IPCCVM SYSTEMS
CONCLUSION
3. What is
CCVM?
Closed circuit video monitoring system (CCVM) is the
use of video cameras to transmit a signal to a
specific, limited set of monitors.
Differs from broadcast television
CCVM is used for surveillance.
Used in hazardous areas that may need monitoring.
4. Different Network Components Used In
Communication Systems.
1) Active Components:
Network Switch
Media Converter
Network Interface Card
7. Major Units of Old System CCVM
CCD Sensor
Cameras
Lenses
Switching unit
Monitoring unit
8. CCD Sensor:The CCD sensors are the device that converts the
image captured by a lens into electrical signals which
are stored in a camera.
9.
10. Camera Unit
A camera collects reflected images from objects in the
environment and then converts them into electronic
signals.
Devices involved in the working process:
1) Solid-state imager
2) Monitor
3) Peripherals
4) Signal transmission technology
Camera performance:
1) Sensitivity
2) Resolution
11. Lenses
It is fixed in front of the camera and is used to focus the
required object on the photosensitive plate.
12. Different Lens Sizes Can Change
The Viewing Angle Of A Camera:
3.6mm Lens at 5 Meters(16ft)
12mm Lens at 5 Meters(16 ft)
3.6mm Lens at 15 Meters(65ft)
12mm Lens at 15 Meters(65 ft)
13. Iris
The ability to control a camera’s iris opening plays an
important role in image quality.
Fixed Iris
Manual Iris
Auto iris (DC and video)
P-iris
Cable Types:
There are two main types of cables used for
transmitting video signals.
1. Unbalanced (co-axial):
2. Balanced (twisted pair):
14. Switching Unit
Camera switchers are devices that allow CCVM
system operators to switch between cameras--either
manually or automatically.
Types of sequential switchers:
1) Bridging Switchers
2)Homing Switchers
3) Looping Switchers
4)Alarming Switchers
5) Combination Switchers
6) Microprocessor-based Matrix Switchers
Special Features Of CCVM
1) Frames per second :
2) Pan Tilt Zoom (PTZ):
3) Cameras with special accessories
19. IP CCVM SYSTEMS
IP cameras are Closed-circuit Video
Monitoring (CCVM) cameras that
use Internet Protocol to transmit
image data and control signals over a
Fast Ethernet link.
Network cameras
• Viewing cameras through internet connection.
• Communication of data.
21. Types of IP Cameras:
Types of IP cameras based on internet connection:
1)
Wired IP cameras
2)
Wireless IP cameras:
Types of IP Surveillance Cameras:
1)
Fixed
2)
Fixed Dome
3)
PTZ
4)
PTZ Dome.
24. IP Addressing Mechanism
An Internet Protocol address (IP address) is a
numerical
label
assigned
to
each
device
(e.g., computer, printer) participating in a computer
network that uses the Internet Protocol for
communication.
IP Addressing Fundamentals:
The two parts of an IP address
192.168.10.10
192.168.10.20.
25. Subnet Masks:
• IP addresses are actually 32-bit binary numbers
• Each 32-bit IP address consists of two sub addresses
1) Identifying the network
2) Identifying the host
Example:
IP address
11000000101010000000000100010100
Subnet mask 11111111111111111111111100000000
IP Versions:
IP Version 4
2) IP Version 6
1)
26. Decomposition of an IPv4 address from dotdecimal notation to its binary value:
27. Decomposition of an IPv6 address from hexadecimal
representation to its binary value:
28. Potential Advantages:
Two-way audio via a single
Higher image resolution:.
Flexibility
Distributed intelligence
Transmission of commands for PTZ (pan, tilt, zoom)
Encryption & authentication
Remote accessibility
Navigation purpose in defence forces.
POE - Power Over Ethernet
On-camera automated alerting via email or file transfer in
response to video motion detection or dry-contact alarms.
Password lockout of unauthorized
30. IP CCVM at Blast Furnace
Blast Furnance
Monitor
Potential Disadvantages:
Higher initial cost per camera
High network bandwidth requirements
Technical barrier
System becomes open to hacking via internet.
31. CCVM vs IPCCVM
1) Remote Viewing
2) Remote Recording
3) Wireless Capability
4) Video Analytics
32. CONCLUSION
IP-based technology is the best in terms of security
by far. It provides long-term storage.
To set-up an IP-based video system is easy -- once
in position it starts functioning with extreme stability
and reliability. Because this is the technology of the
future, it is also upgradeable.
CCVM system would not be labeled obsolete
because new developments are based on improving this
market.
IP based CCVM can be said to be a very efficient
and reliable method of recording, storing and sharing
data with much less fuss as compared to its predecessors
Hence a better prospect for the future of data
communication.
