Comparison CCTV and IP Cameras

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ASK Communications

Muhammad Yousaf Iqbal

Cell 0092-321-4444405

Copyright © 2006 Askcom. All rights reserved.

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Introduction

• INTRODUCTION TO IP VIDEO

• ANALOG VS. IP VIDEO

• DVR VS. NVR SOLUTION

• NVR RECORDING SOFTWARE

• IP VIDEO NETWORK COMPONENTS

• Analogue CCTV Vs. CCTV/IP

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• Convergence of IT and Physical Security• Many corporations use IT and Security for

Surveillance, Security and Loss Prevention• IT manages data while Security uses data

• Scalability and remote access• Cabling infrastructure allows for ease of installation• Remote access via internet• Open IT standards allows for future path

• Redundancy• Ability to record off site

• Lower cost of ownership

Security surveillance

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Internet

Surveillance Management Software

Digital Cameras Analog Cameras

Local ConsoleRemote Monitor

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Analog

• DVR needed in each location

• Cameras locked to specific DVR

• More expensive cabling• Expensive labor

• Cables run back to DVR

• Non standard protocols• Cameras limited to capture

card

Analog vs. IP Video

IP Video

• Central recording• Flexible mapping• Cheaper cabling

• Less expensive labor

• Use existing infrastructure

• Connected to nearest switch

• Standard protocols• Cameras limited only by

processing power

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Analog

Analog vs. IP Video

IP Video

• Local DVR Needed

• Costly cabling

• Cameras limited to DVR capacity

• Remote Storage possible

• Remote users possible

• Low cost cabling

• Virtually unlimited number of cameras

Ethernet Switch

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A little More to Know

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• Captured• Using a CCD (Charge Coupled Device) on the camera

• Digitized• Compression methods - MJPEG, MPEG, MPEG4,

etc..• Sent across IP Networks

• Local Area Networks (LANs), Metro Area Networks (MANs) or the Internet

A little More to Know

Video Decoder Video ProcessorEthernet

TransceiverLAN Port

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Analog

A little More to Know

A/D Converter

Signal Processor

D/A ConverterLAN PortAnalog Video Out

IP Camera

A/D Converter

Signal Processor

Video

Compression

Gain, BLC, AWB, etc..

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Analog• Max Length ~ 1000 ft.

• RG-59 – labor intensive, costly

A little More to Know

Cat 5 Ethernet CableWireless Bridge

Wire

d

Analog• RF (Radio Frequency)

• Microwave

• Proprietary

• Costly Solutions

Wire

less

IP Video• Physical max length ~ 328 ft.

• Virtually no max length due to network switch locations

• Cat5e standard – low cost

IP Video• 802.11a, b, g – Low cost,

open standard

• WiMax or Proprietary –Longer distances

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• Unicast• Stream video to 1 client• Client is a PC, NVR that views IP video

• Multicast• Stream video to multiple clients at once• Can be password protected

A little More to Know

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• Analog Camera• NTSC standard• BNC connection• RG-59 for video• RS-485 control• 12VDC or 24VAC

A little More to Know

24VAC or 12VDC

RS-485

Analog Video

Power over Ethernet

24VAC or 12VDC

Wireless

Access Point

• IP Camera• MJPEG or MPEG

standard• RJ-45 connection for video

and control• Cat5 or Wireless• PoE – 1 cable for

everything

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• Analog Video Recorder• Capture Card• Integrated multiplexing• Local recording

DVR vs. NVR• Network Video Recorder

• Processor is capture device• Network switch• Remote recording possible

Analog DVR

Network switch

Network Video Recorder

Analog signal

Cabling must be home run to DVR

Signal is digitized

and compressed

at DVR

Digital signal

compressed at

camera

Cabling need not be home run to DVR

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• NVR Unit• NVR Hardware

• Installed NVR software

• Pre-configured hardware and physical size

NVR Recording Software• NVR Software

• NVR Software

• Installed on a 3rd party server

• Customizable hardware

• Physical size options

• Hardware must meet software requirements and compatibility

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Video ComponentsAnalog

Matrix

DVR

Spot Monitor

Camera streams analog video

Matrix routes video

DVR manages / stores video

User views video

Ethernet Switch

Server

Storage Array

Camera streams digital video

Switch routes video

Server manages video

Storage archives video

IP Video

Remote

Workstation

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CCTV/IP Advantages over Traditional Systems• Improved system scalability

• Adding cameras is similar to adding another computer to your network – no

additional TMC equipment

• Video switching is handled at the packet level by the network – no more

matrix switch expansion modules

• Network convergence - CCTV can integrate with other Ethernet/IP

field network devices (i.e. traffic controllers) over the same backbone –

no additional communications infrastructure required

• Reliability – IP networks support alternate routing and redundant

network links

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CCTV/IP Advantages over Traditional Systems

• Open standards support

• Encoding/Decoding formats are standardized – open source software decoders exist, hardware decoder interoperability improving

• Ethernet/IP network transport

• Compatible with NTCIP

• Software based control eliminates dedicated and proprietary

• hardware – switch matrix, multiplexers, sequencers

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CCTVoIP Summary

• � CCTV security industry is migrating to IP

• � Traditional analog systems may be more cost effective for

• smaller deployments

• � CCTVoIP may be more cost effective for:

• � Systems with large number of field cameras

• � Systems with existing Ethernet/IP infrastructure – leverage existing

• hardware

• � Multiple distributed control points or centers

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Additional feathers of IP cameras

• Motion detection

• Fire Alarms

• Heat Maps

• POE (Power over Ethernet)

• Intelligence at the Camera Level

– Alarm Management

– Image Enhancement

– Number Plate Identification

– PTZ through Network

– I/O controls

• Bidirectional Audio surveillance

• Superior Image Quality

• Multiple viewers- Unicast and multicast

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Additional feathers of IP cameras

• Digital Pan/Tilt/Zoom

• Highly reliable - no moving parts

• Capture everything, all the time

• Multiple simultaneous control

Network Transport

• Ethernet or Wi-Fi?

• Availability of connection ports

• Bandwidth usage on LAN

• IT department approval

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Higher resolution improvescoverage

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