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APTA Technical Standards CCTV Standards Workshop June 07

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APTA Technical Standards CCTV Standards Workshop June 07

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    1. Investing Today for a Brighter Tomorrow APTA Technical Standards CCTV Standards Workshop June 07 APTA Communications Sub-committee & technical standards group Dave Gorshkov (Digital Grape Business Services) lead committee member CCTV, Train-Line & DVR standards for transit related CCTV systems

    2. Investing Today for a Brighter Tomorrow

    3. Investing Today for a Brighter Tomorrow Objective of CCTV Standard Promote the appropriate use of CCTV technology in transit related applications Reduce ‘risk’ in adopting new technologies in transit related projects Ensure that key CCTV technologies are reviewed and evaluated so as to provide ‘Fit for Purpose’ systems Communicate findings, via the standards process, to the wider APTA community

    4. Investing Today for a Brighter Tomorrow Why do we need a CCTV standard for transit related applications? No current guidelines for transit ‘systems’ level of functionality for OCC or mobile applications (e.g. ASIS have no RP for camera resolution) Need to Provide a Uniform baseline standard to ensure quality of service (QOS) for systems design in one standard covering:- Cameras, Recording systems and high speed Trainline/Networks Operators need guidelines in order to design, specify and procure CCTV, high speed digital networks and digital recording systems. Standard enables ‘minimum’ Quality of imagery and data recording Ability to run advanced analysis software for post event evaluation Introduces usable resolution requirements for playback systems Enables interchange of data between agencies Clarifies periods for data retention and use of data at judicial proceedings Provides DHS with baseline standard for grant applications

    5. Investing Today for a Brighter Tomorrow Main areas of standard Review of on-board and static solid state camera technology Analogue Cameras (minimum frame rate and resolution) Digital Encoded Cameras (bit rate capabilities and application) Review of Digital recording technologies Capabilities (environmental) Recording duration (resolution FPS / time) Compression system architectures Review of Train line high speed digital networks High speed digital coupler (connection method) Minimum transmission capabilities (100Mb/sec) Minimum BER requirements for QOS (1 in 10-7 mean)

    6. Investing Today for a Brighter Tomorrow Main Requirements: Frame Rate & Resolution Cameras CCTV cameras will be colour 480TVL/4CIF or 704 x 576 pixel minimum resolution Frame rates that are configurable must record at 15 (12) FPS ‘minimum’ inside car, 30 (25) FPS when PEI activated. Non configurable must record at 30 (25) FPS. External facing cameras (forward / rear facing mobile cams ) will run at 30 (25) FPS (capture of external events, grade crossings, platform events etc) All camera locations must be designed for purpose and tested against a Rotakin, or similar, resolution test target.

    7. Investing Today for a Brighter Tomorrow Digital Train Lines and Networks Capable of carrying digital CCTV data throughout rail vehicles in real-time Comply with the 100BaseT Ethernet industry standard Allow for connection within the auto-coupler with minimum attenuation Provide a minimum of 1 in 10-7 average BER at 20c running at 100Mb/sec Wireless networks should not be used for primary CCTV transmission of data to recording medium (Must be locally recorded where possible)

    8. F Investing Today for a Brighter Tomorrow

    9. A quote from the recent 2006 NIST FR evaluation tests: There are three primary components to the improvement in algorithm performance since the FRVT 2002: a) the recognition technology, b) higher resolution imagery, and c) improved quality due to greater consistency of lighting. Investing Today for a Brighter Tomorrow

    10. Investing Today for a Brighter Tomorrow

    11. Investing Today for a Brighter Tomorrow Recorders The use of VHS based systems are no longer recommended (low res) . All camera outputs must be recorded individually in high res’ and must contain a ‘digital signature’ or ‘hashing’ code for evidential validation. Compression systems must comply with MPEG2, MPEG4 ‘profile 6’ or JMPEG formats minimum, and ensure that latency is no more than 1.5sec average between I frames (MPEG). Recorded images must achieve a ‘minimum’ of 240 TVL of resolution , when tested against a ROTAKIN target or similar calibrated card, when observed in playback on a normal video monitor. OCC systems must retain recordings for 31 days, Mobile 7 days.

    12. Compression There are numerous compression systems in use and the main issue are quality of the image and that the ‘profile’ used is adequate for it’s purpose. MPEG2 – H263 MPEG4 – H264 JMPEG Investing Today for a Brighter Tomorrow

    13. Testing and SRS The testing of the system is the overall ‘test’ that your systems requirements specification (SRS) has been achieved for EACH camera location. Testing must be carried out using calibrated targets such as RotakinŽ in order to determine if a given camera position meets the requirements of the SRS See following sequence of slides for testing to achieve Monitoring, Detection, Recognition and Identification. Investing Today for a Brighter Tomorrow

    14. Example screen heights to:- Monitor 5%R Rotakin occupies 5% of monitor screen height Detect 10%R minimum Recognise 50%R minimum Identify 120%R minimum

    21. Investing Today for a Brighter Tomorrow Contributing & Supporting organisations

    22. Investing Today for a Brighter Tomorrow Subcommittee Member Organizations NYCT CTA PATH Maryland DOT LA -Metro MUNI Tri-Met DART TTC CTTransit BART Caltrain Lane Transit King County Metro Alcatel Arinc Alstom GE Transportation Systems Nortel Siemens Transportation Trapeze ITS Idaho National Labs LTK Engineering Parsons Brinkerhoff Digital Grape Lamoreaux-Mclendon Teumim Technical

    23. Investing Today for a Brighter Tomorrow Subcommittee Member Organizations (cont’) Sound Transit (Seattle) Edmonton Transit Port Authority (Pittsburgh) VTA MARTA MTA- Metro North Ann Arbor Transportation Authority Metra (Chicago) TARC (Louisville) Honolulu Hampton Roads Transit Safetran Quester-Tangent HNTB Lea & Elliott Triunity Engineering FTA Dikata Engineering Orbital

    24. Investing Today for a Brighter Tomorrow Points of Contact Dave Gorshkov – CCTV standard lead Phone 561-504-7967 Email: dg@dgrape.com Jon McDonald - Chair Phone: 206-398-5458 Email: jmcdonald@ltk.com Website: www.transitcommtech.com

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