Matching the Right IP Solution to Your Business/Organisation Requirements
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Transcript of Matching the Right IP Solution to Your Business/Organisation Requirements
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By Simon Adcock, Managing Director, ATEC Security & Communications
Matching the Right IP Solution to Your Business / OrganisationRequirements
Presented to :Next generation CCTV Conference 2008
4th November 2008
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Agenda
• What is an IP system ?• Knowing what you want from your system
(IP Operational requirements)• Deciding whether IP is for you (IP benefits,
disadvantages and Pitfalls)• Analysing alternative approaches to IP
adoption• Assessing what is on the market and
making sense of what suppliers are offering
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What is an IP CCTV System?an
alog
ueIP
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smitt
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IP C
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IP Video Bridge
IP Connection
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Key Stages in Specifying CCTV
HOSDB - (Google “CCTV operational requirements)
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Reproduced by kind permission Home Office Scientific Development Branch
Level 2 Operational Requirement
• Camera factors– Level of detail (%R), Lighting, target speed
• Live viewing– Who, where, frame rate, image resolution, quality
• Recording/Review– Frame rate, image resolution, quality, retention
periods
• Integration– Systems, desired actions/responses
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Design Considerations - Cameras
• Camera– IP Cameras, Hybrid IP cameras or Analogue
cameras with IP transmitters
• Encoder– Frame rates– Type of compression, performance– WAN and recording streams– No. of supported streams– Latency (PTZ / voice comms)– Environment, space, temperature– TCP (error checking)/UDP (fire & forget)– Multicast support
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Design Considerations - Network
• Whose network ?• Total bandwidth• Available bandwidth• Traffic cohabitation
– Prevent video hogging bandwidth– Prevent other traffic causing video glitches
• Traffic prioritisation (QOS)• Multicasting• Network Security
– Secure network, secure CCTV overlay
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• Storage requirement– Frame rate/resolution/compression = bandwidth– Bandwidth (Kbps)/8 * retention period(s) =
storage (KB)
• Compression– MPEG4, H.264 benefits
• Recording Platform– Redundancy (RAID, dual PSU, NIC)– Resilience
• Review Software– Post event analytics (Google for CCTV)
Design Considerations - Recording
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A strong business case if……
• Large Systems (>100 cameras)• Mission Critical• Multiple Monitoring and Review locations• Wireless transmission• Existing Network• Regional (Telco Network)• Integrated Systems
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• Island Site– <300m across, route owned– E.g. Warehouse, office
• Campus– 300m>1500m, route owned, multiple buildings– E.g. hospital, shopping centre, airport
• Metropolitan– 1500m>10Km, route not owned– E.g. town centre, UTC
• Regional, National, International– >10Km transmission route not owned– E.g. Rail TOC, Highways, multi-site business
System Geography - Site Scenarios
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• Equipment more expensive• Complex configuration• Transmission delays (latency)• Inferior live image quality• Environmental factors• Poor low-light performance and dynamic
range
IP Drawbacks and Pitfalls
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• Analogue Cameras (+ IP Transmitters)– Low light, high contrast, interoperability, existing– Increased cabling, no remote management
• Hybrid Analogue Cameras (Integrated IP)– Low light, high contrast, less cabling– Interlaced video, 90m
• IP Cameras– Megapixel, progressive scan– Require good even lighting, bandwidth & storage requirements high
IP System - Camera Choices
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• PAL Resolution– “Recognition”– 50%R
• HD (720p)– Recognition– 40%R
• HD (1080p)– Recognition– 27%R– 3.7x horizonal
resolution
Megapixel (HD) Cameras
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Where to Start ?
• Manufacturer– Will naturally push own product– May not be the best for your application– Generally don’t understand O/R
• Consultant– Costly but Impartial Advice– Few CCTV consultants have IP knowledge
• Integration partner– Hands-on expertise in systems– Should assist with O/R & technical spec.– Advice not wholly impartial but free
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Selecting equipment/Manufacturer
• Basic requirements– Reliable equipment– Useable intuitive software– Financially stable– Large installed base
• Desirable Features– Efficient compression (quality/bandwidth)– Bandwidth control– Industry standard recording platform– Evidence location tools– Integration capability
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Selecting an integrator partner
• Compliance– NSI (NACOSS), BSIA Members/CoP
• Analogue CCTV Experience– Informed choice, expertise still relevant
• Technology Competence– Experience, Strategic Partnerships
• Understanding of Networks– Bandwidth Control, Unicast/Multicast, TCP/UDP– Managed/Unmanaged Infrastructure
• Successful IP CCTV Installations– Ask for client references for similar projects
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In a nutshell……………
• Operational Requirements should be the driver, not technology
• Get expert help with O/R and specification – (manufacturer, consultant, integrator)
• IP Business case– Shared network, geography
• Technical Considerations– Analogue or IP cameras– Compression
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Thank you for listening
Simon Adcock – Managing Director
ATEC Security Limited Middlemore LaneAldridge, WalsallWest Midlands, WS9 8SP
T : 01922 455 496M: 07976 455521F : 01922 743 186
E: [email protected]: www.atec-security.co.uk
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• HOSDB Operational Requirements manual 55-06– http://scienceandresearch.homeoffice.gov.uk/
hosdb/publications/cctv-publications/
• BSIA – www.bsia.co.uk publications– A guide for installation of cctv systems using IP
technology (Form no: 235)– A user guide to the use of Internet Protocol (IP)
in the security industry (Form no: 211)– An installer's guide to Internet Protocol (IP) in
the security industry (Form no: 210)– IP Benefits Guide (published soon)
References and Further Reading