Visualization elements of digital twins€¦ · 19/08/2019 · Visualization elements of digital...
Transcript of Visualization elements of digital twins€¦ · 19/08/2019 · Visualization elements of digital...
Visualization elements of digital twins
ISO/TC184/SC4/JWG16
2019-07-28
Soonhung.Han @kstep.or.kr
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Contents
Big data and Scientific viz.
Digital Twins
Definition
Core technologies
Difference from AR or CPS
Avatar
Cyber Physical ~ Digital + Physical
Fidelity
Viz. elements of DT2
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https://www.oss.kr/info_techtip/show/95f45eef-d095-4fee-a161-bb64b3bc7895
Big data drives AI and Digital Twin
Operational data from edge computing
Edge, IoTGateway, Network App, Service
Scientific Visualization
Methodology of quickly and effectively displaying scientific data.
Once a computer experiment has been performed, the results must be interpreted.
Statistics can provide insights, it is difficult for the human to comprehend large volumes of numbers. (Big data)
Visualization techniques can interpret large data sets, providing insights that might be missed by statistical methods.
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https://www.encyclopedia.com/computing/news-wires-
white-papers-and-books/scientific-visualization
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Industry 4.0 from wiki
Telecommunication
Smart phone, 5G
Digital Twin
Mechanical ComputerElectrical
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Digital Twin from Deloitte
Definition
an evolving digital profile of the historicaland current behavior of a physical object or process
Core technologies
1) sensors and actuators
2) integration
3) data
4) analytics 5) DT
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https://igotoffer.com/blog/digital-twin/
Digital twins
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Physical asset Avatar
Definition of DT (digital twin)
DT = tangible Asset + Avatar
Separation of two twins
DTs = Physical + Avatar
Digital Twins 쌍둥이 = Physical Twin 兄+ Cyber Twin 동생(弟)
Twins are two offspring produced by the same pregnancy: 1 egg, 2 egg
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Physical asset
(real world)
Realtimeinterface
Digital twin(virtual world)
status
control
Big data
Operational record
FMEA
FEA
CAD model
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https://www.digitalnewsasia.com/digital-
economy/healthcare-innovation-could-lead-your-digital-twin
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https://cmte.ieee.org/futuredirections/2017/09/27
/can-we-have-a-digital-twin/
https://insights.cambashi.com/2018/01/26/siemens-goes-all-in-on-digital-twin/
Lifecycle of DTDigital (virtual) Physical Connected twin
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Difference from AR ?
Avatar vs. Digital twin
DT = AR + IoT ?
Realtime operational big data
Data engineering
Stochastic engineering vs. Deterministic engineering
Uncertainty
Computer simulation
Accident, performance, cost
Simulation game14
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http://www.cenews.co.kr/news/articleView.html?idxno=7356
Smart home, Smart city, (smart) Google Earth
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https://www.designworldonline.com/big-future-
for-cyber-physical-manufacturing-systems/
CPS
Difference from CPS ?
(realtime) Connection between twins
Fidelity issue: Google Earth
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I4.0 terms in the context of a three-layer model
of Cyber-Physical-Systems (CPS)
Levels of reality
Fidelity
LoD (level of detail)
Quality of synchronization
realtime
precision
Shape and behavior
How to visualize
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Design model Points cloud
Manufactured
product
Fidelity, LoD (level of detail)
Fidelity
Can a computer simulation replacephysical experiments ?
Car crash simulation
Underwater explosion
FSI (fluid structure interaction): FEM + CFD
CFD: BEM(boundary element method). SPH (smoothed particle hydrodynamics). Molecular dynamics
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Fidelity measure
Texture map. Motion texture
Resolution:
DPI of printer. Points cloud of a building
Realtime sensor data from every leaf of Toulouse ?
Need a measure:
Shape similarity measure.
Image search engine
STEP model search22
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Type Description Example (Valve)
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Symbol-level model
(basic design stage,
send to manufacturer)
• Simple model (3-dimensionalized symbol from P&ID)
• Model in default libraries(known as catalog model)
provided by a PlantCAD system.
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Production model
(production design
stage of plant)
• Model that plant manufacturer re-models based on
vendor-package (collection of 2D drawings,
simplified symbol model) of equipment
• The product model which is suitable for plant
manufacturer
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Handover model
(reconstructed model
from scanned data)
• Model that plant owner or operating company
requests
• Has different LOD depending on the requests
4Scanned model (during
or after construction)
• A points cloud model from 3D scanning during or
after manufacturing or construction of the plant
• It shows additional material such as insulation
material surrounding the equipment
5Detailed model from
manufacturing (Vendor)
• Detail model of vendor for producing the equipment
• Contains all (geometric/non-geometric) information
about the product e.g. internal geometric
information as well as detailed surface information
• Due to security issues, only vendors have the model
Model Classification (plant industry, LoD)
Classification of digital models of plant equipment by Level-of-Details
What to do
STEP model ~ Product digital twin
STEP model viz. of JWG16 ~ viz. ofProduct digital twin
Product can be a man-made thing: Asset, parts, facility
PWI: TR for Digital Twin viz.
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https://www.youtube.com/watch?v=AtYEpvnEpp0
https://www.youtube.com/watch?v=8ger1wrAonM&t=39s
Digital twin videos
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Siemens
Factory operation
https://www.youtube.com/watch?v=OVGbT6Wx8SU
Machining twin
https://www.youtube.com/watch?v=D51dGwkxs2k
Digital enterprise
https://www.youtube.com/watch?v=ePZheUvsH0w
GE Ocean wind power
https://www.youtube.com/watch?v=3Y1lnF4_pKY
Autodesk University
https://www.youtube.com/watch?v=G5jYyB2bZ6k
KAIST
https://www.youtube.com/watch?v=2cFXDl_8RUA
30https://www.youtube.com/watch?v=3AiVGlDWCmU
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https://en.wikipedia.org/wiki/Scientific_visualization
Augmented Reality Definition
An enhanced version of reality where live direct or indirect views of physical real-world environments are augmented with superimposed computer-generated images over a user’s view of the real-world, thus enhancing one’s current perception of reality
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https://www.realitytechnologies.com/augmented-reality/
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Industry 4.0 from wiki
34https://www.forbes.com/sites/bernardmarr/2018/07/30/9-powerful-real-
world-applications-of-augmented-reality-ar-today/#680616d92fe9
Augmented reality (AR) from wiki
a real-world environment where the objects that reside in the real-world are enhanced by computer-generatedperceptual information, sometimes across multiple sensory modalities, including visual, auditory, haptic, somatosensory, and olfactory
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https://phys.org/news/2018-11-augmented-reality.html
avatar
https://dictionary.cambridge.org/dictionary/english/avatar
an image that represents you in online games, chat rooms, etc. and that you can move around the screen
a character or creature that you create to represent yourself in a computer game, on the internet
especially in Hinduism, a god who appears on earth as a person
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38http://www.imm.dtu.dk/~jbjo/cps.html
39https://www.isa.org/intech/20160601/
Core tech of Ind. 4.0
AI
Digital Twin
CPS
3D printing
Standards
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https://www3.nd.edu/~dwang5/courses/spring17/
University of Notre Dame
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Structure of Asset Administration Shellhttp://acplt.github.io/openAAS/AssetAdministrationShell.html
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Administration shell for digitalization
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KAIST PhD thesis 2015
https://www.youtube.com/w
atch?v=ejuq1s2ygw4&featu
re=youtu.be
Digital
twins
Physical
asset
Predictive
maintenance
Monitoring
Operational
Big dataBehavior
Data
analytics
Realtime
Industry 4.0
Visualization
XR
(VR, AR, MR)
Simulation
IoT
Sensor
data
Digital
model
Keywords ofdigital twins
https://www.unity.de/en/services/digital-twin/46
Digital twin timeline
Physical
production
Digital
product
Physical
product
Digital
production
Operational
data
IoT
Sensor
data
ActuatorParameter adjustment/
Predictive maintenance
Big data
Data
analytics
Diagnotics/
monitoring
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Automatic reconstruction of KAIST campus
https://www2.delo
itte.com/insights/
us/en/focus/indus
try-4-0/digital-
twin-technology-
smart-
factory.html
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Points cloud Mesh model