kevin bozarth - bicsi design and technology by kevin bozarth design specialist, integrated system
TRANSCRIPT
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CCTV Design and Technology
by
Kevin BozarthDesign Specialist, Integrated System
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CCTV Core Components
CameraCamera
RecordingRecording ViewingViewing
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Camera Choices• Analog• IP
Question?• What Function• What Technology• What Environment
Question?• What Function• What Technology• What Environment
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Camera Choices - Analog• Video Transmission
– Standard PAL/NTSC– Coax– CAT5e, CAT6 - UTP
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Camera Choices - Analog• Digital Encoding through Encoders
Compression Image Quality Compression BandwidthMJPEG Great (5) Zero (0) Very High (5)MPEG2 Good (3) Low (1) High (3)MPEG4 Medium (2) Medium (2) Medium (2)H.264 Good (3) High (3) Low (1)
Values are Estimates of compression standards
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Camera Choices - Analog• Video Compression Example
– H.264• 17 different defined profiles• Bit Rate controlling
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Camera Choices - Analog• Standard being defined within
Physical Security Industry– ONVIF– PSIA
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Camera Choices - IP• Benefits
– Reduction of System Components– Remote Configuration– Remote Upgrades
Analog CameraAnalog Camera
Digital EncoderDigital
Encoder+
IP CameraIP Camera
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Camera Choices - IP• Benefits
– Reduction of System Components– Remote Configuration– Remote Upgrades
Dip SwitchesDip Switches Web PageWeb Page
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Camera Choices - IP• Benefits
– Reduction of System Components– Remote Configuration– Remote Upgrades
Remote ConfigurationRemote ConfigurationField ChangesField Changes
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• Resolution– Standard Definition– MegaPixel
Camera Choices - IP
Storage & Network
Quality & Resolution
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3.1 MP (2048x1536)
2.1 MP (1920x1080)1.3 MP (1280x1024)
0.5 MP (800x600)4CIF 704x576
Camera Choices - IP• Resolution
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• Resolution – Aspect Ratio3.1 MP (2048x1536)
2.1 MP (1920x1080)
Camera Choices - IP
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• Resolution
Camera Choices - IP
1 MP4CIF 2 MP
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Camera Choices - IP• Bandwidth
– Original Design – 50% total link bandwidth– Expansion – 70% total link bandwidth
Formula[# of Cameras] X [Average Bandwidth]
≤50% X [Link Bandwidth]
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Formula[# of Cameras]
X [Average Bandwidth]X 60secondsX 60minutesX 24hoursX [# of Days]/ 8bits/ 1,000gigs=
[# of Gigs of Storage]
Camera Choices - IP• Storage
– Quantity of Cameras– Average Bandwidth– Days of Retention
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Recording Choices• Fault Tolerance• Redundancy
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Recording Choices – Fault Tolerance• RAID
– RAID 1
– RAID 5
– RAID 6 A B A&B A&B
A B A&B
A A
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Recording Choices – Power• Redundant power supplies
– 2 plugs
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Recording Choices–Load Balancing• Consistent Retention• Processor utilization equal
Recorder Recorder Recorder
Cameras
⅓ ⅓⅓
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Recording Choices – Failover• Is it needed?
• Failure• Maintenance
• Standby recorder (n+1)• Load-balancing failover (n+m)
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Recording Choices – Redundancy• Recorded to two recorders
– Drastic failure of recorder– Drastic failure of environment
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Viewing Choices• Viewing Application• Decoders• Monitors
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Viewing Choices – Viewing Application
• PC• Purpose Built CCTV viewing device• Decoders
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Viewing Choices - Monitor• Analog – Standard Definition• HD
– 720p (1280 x 720 is 0.9 MP)– 1080p (1920 x 720 is 2.1 MP)
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System Architecture• Environment• Network• Integration
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System Architecture - Environment• Security• Air Conditioning
Formula[Room Meters2] X 303 = Room BTU[Lighting Wattage] X 4.28 = Lighting BTU[# of Occupant] X 400 = Human BTU
[Σ BTU] / 12,000 = Tons of AC
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System Architecture - Network• Bandwidth• Switch selection• Topology
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System Architecture - Integration• Analytics• 3rd Party Data Systems• Multiple CCTV manufactures
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System Architecture - Integration• Analytics
– Server Based– Edge Based
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System Architecture - Integration• 3rd Part Data Systems
– Alarm System– Access Control System– Point of sale System
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System Architecture – Multiple CCTV
• Manufactures– Cameras– Decoders– Storage
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CCTV CommissioningNow lets put it together the way it needs
to be used!