on quality enhancement in seismic testing laboratories ... · on quality enhancement in seismic...
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On Quality Enhancement in SeismicTesting Laboratories based on
Efficient IT Infrastructure Deployment
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
2nd Contribution
M.H. Zaharia, Assoc Prof.
TUIasi
Main Aspects of IT infrastructure in EE Labs
1. Usual IT infrastructure in EE Labs (room, equipment & products)
– Telepresence room (audio & video)
– On site monitoring/video network
– Datacenter
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
– Datacenter
2. Needed processes in IT in EE Lab – Sensor Calibration
– DAQ (data acquisition) - Software quality assurance
– Standards used for specific instrumentations
Sensor calibration
• Producer support – Calibration hardware level support (sometimes);
– Calibration protocols and tables (anytime).
• EE experts– Fine tune of existing calibration data and protocols;
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
– Fine tune of existing calibration data and protocols;
– Sometime development from scratch of calibration protocols (even hardware supplementary equipment) and are required.
• Minimal standards to comply: – ISO/IEC 17025, ISO 9001.
• Regarding sensor communications:
– only difficulties - RS232 which have to comply with standards: DIN VDE 100, DIN VDE800, DIN43629 and DIN EN 50289.
DAQ Software Quality Assurance
• Tricky / difficult business!!
• Provided partial or total by hardware producer (e.g. Nat Inst., NI see site: www.ni.com.):– Usually meet the quality assurance standards because in the
worst case they give detailed methodologies about how the job can be done.
• Developed on site by EE Expert
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• Developed on site by EE Expert– Problems - in case of required supplementary certification, if
needed!
• Minimal Required Compliance wit Standards:
• ISO 9001:2008 and IEEE/ANSI: – Standard for Software Quality Assurance Plans, 730:2002
– Standard of Software Unit Testing 1008
– Standard for Software Test Documentation 829
Onsite Video Network
• During the experiment, test specimen is remotely analyzed within a complex network of high and /or medium precision cameras.
• Regarding video cameras the following standards must be analyzed if suitable:– 208-1995 IEEE Standard on Video Techniques: Measurement of
Resolution of Camera Systems, 1993
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Resolution of Camera Systems, 1993
– ISO/IEC 14496-2 Information technology — Coding of audio-visual objects
– ISO/IEC JTC1/SC29/WG11 CODING OF MOVING PICTURES AND AUDIO
– ISOCD 11172. Information Technology. Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1.5 Mbit/s(1993).
– ITU-T Recommendation H.264 ISO/IEC 14496-10:2005. Series H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS. Infrastructure of audiovisual services - Coding of moving video. Advanced video coding for generic audiovisual services.
Onsite video network
• Related to Equipment needed for Communication Network, one have to analyze, select & comply with following standards:– TIA TSB-162 for cabling between LAN
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
– TIA TSB-162 for cabling between LAN equipment and WAPS, including pathways and spaces to support the cabling and wireless AP’s
– ISO/IEC 24704 and TIA's TSB-162 for cabling
– IEEE 802.3af (at) PoE (Power over Ethernet) for communications
An example of IT infrastructure that can be used in EE Labs
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
Telepresence room video
• The solution regarding telepresence are nowadays in front of new age of next two or three years. There will be for sure improvement in its quality and also the actual unaffordable prices will suffer a deflation.
• Some problems regarding calibration – solvable using Standard Calibration Box
• List of standards to comply with:– SMPTE 370M-2002 for Television - Data Structure for DV-Based Audio,
Data and Compressed Video at 100 Mb/s, 1080/60i, 1080/50i, 720/60p
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
– SMPTE 370M-2002 for Television - Data Structure for DV-Based Audio, Data and Compressed Video at 100 Mb/s, 1080/60i, 1080/50i, 720/60p(07/02).
– SMPTE 370M-2006 for Television - Data Structure for DV-Based Audio, Data and Compressed Video at 100 Mb/s, 1080/60i, 1080/50i, 720/60p, 720/50p. The Society of Motion Picture and Television Engineers (04/06).
– IEEE 802.1Q VLAN tagging, encapsulation and CoS
– 802.1Q specification trunking encapsulation
– 802.1w RSTP (Rapid Spanning Tree Protocol)
– 802.3ad LACP (Link Aggregation Control Protocol)
– 802.3af PoE (Power over Ethernet) specification
Telepresence room audio
• Regarding Audio in Telepresence - following standards have to ne analyzed a priori system design: – BS.1284 : General methods for the subjective
assessment of sound quality ITU (International Telecommunication Union)
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Telecommunication Union)
– BS.1387 : Method for objective measurements of perceived audio quality ITU
– BS.1423 : Guidelines for producing multichannel soundtracks using surround matrix techniques ITU
– BS.1548 : User requirements for audio coding systems for digital broadcasting ITU
– BS.1873 : Serial multichannel audio digital interface for broadcasting studios ITU
Suitable Datacenter Location
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Minimal standards: TIA942, ASHRAE data books, the ones
of Uptime Institute – TUI, Telcordia standards like GR-63-
CORE and European standard EN50173-5.
Datacenter room distribution
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- The TIA approach - supplemented by a special room for control,acquisition command & control equipment.- Special room for telepresence was added.- Data center - needs of specifications between tier one and tier two fromTIA 942 standard.
Q requirements for
Datacenter Design (1) • The racks standard shall be 42U with compliance on
Telcore GR-63-CORE standards.
• The design of data center has two constraints related to the seismic experiments to be done in the future.
• During the operational phase the equipment needed for experiments are as well exposed to relative high
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
experiments are as well exposed to relative high vibration characterized, by high frequencies and important peak ground accelerations (PGA).
• The standard used for datacenters design considers that a major seismic event (real one) can be afforded once in a lifetime, considered around 20 years.
• In the present time, there are insufficient data regarding fully equipped datacenter behavior in case of occurrence of a major seismic event.
Q requirements for
Datacenter Design(2)• As an example, the Kobe earthquake had unexpected
and unpleasant effects on different datacenters, located around.
• The weak point seems to be especially at level of the raised technical floors of the construction [Rasmussen, 2010].
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2010].
• Taking into account this consideration it is recommended to design a relatively high dense IT infrastructure in datacenters.
• After conducting surveillance on existent solutions on the market we can conclude that the rack producers tests done on a single rack, excited by a signal for real earthquake are not sufficient, since it should be considered the test of a fully deployed datacenter.
Q requirements for
Datacenter Design (3)
• For design of datacenter some of the following
solutions are to be considered:
– The use of special design for datacenter building
which have the role to absorb the majority of seismic
effects (like using inertial dumpers, rubber based
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
effects (like using inertial dumpers, rubber based
foundation or other suitable approach)
– The use of ceiling cabling to avoid the raised floor and
anchor racks directly in the foundation
– The considerations of technological floor re-design
and racks links to them, in order to increase the
seismic resistance of the whole structure.
Q requirements for
Datacenter (4)
• The other problems like fire, water flood,
humidity, gases and temperature are well
specified in standard. The selected solutions use
the tier two specifications regarding threats from
TIA 942.
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TIA 942.
• For cabling - EU standard EN50173-5 must be
used.
• For first two zones in network trunk distribution
unimode fiber optic are recommended; GR-326
standard may be used.
Q requirements for
Datacenter (5)
• Regarding the datacenter availability there are some redundancy measures, specific at least for tier two, token like ups, ups, N+1 power supply and so on.
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N+1 power supply and so on.
• This are obtained by conforming to ISO 9001, or TIA 942 and ASHRAM documents a.s.o.
Some final remarks
• The complexity of required IT infrastructure for
EE laboratories need the to comply with the
specific standards previously presented.
• The role of IT will increase in the years to came
at the EE laboratories level.
SERIES WS WP3 NA2, 2.09.2010, Ohrid MK
at the EE laboratories level.
• The existing standards referring to requirements
to be fulfilled by datacenter under located in
seismic active area should be examined and
may be changed (see Kobe earthquake effects
on datacenter example).