Post on 04-Aug-2020
transcript
IDBECommon conceptual framework and roadmap of collaboration in
Spatial Standards for the Digital Built Environment
GeoBIM: 3D GIS in China
Mei Xue: “In my opinion, what matters most in the integration with BIM data is the semantic divergence and difference rather than the accuracy of data.Interoperability is the keyword of GIS-BIM integration for which cross-functional knowledge, experience and communication are crucial.”
https://www.gim-international.com/content/article/3d-gis-in-china-2
Future City Pilot (FCP), Phase 1• OGC in collaboration with bSI• Accelerate standards process, requirements based• 6/8 months project• Pilot interoperability arrangements in Geo and BIM
• Quid IFC and CityGML?
• House rules:• Pre-market conditions• Non competitive• Non operational environment• Research
• In an interoperable environment using Open Standards
Scenario’s• Static 3D city models are ‘easy’ to make
• Maintaining a city model is harder• Need for validation of new components of the model
• Model validation (e.g urban planning rules)• Connection with temporal data (e.g TimeSeriesML)
• Parts of a city planning tools
• Dynamic data to be linked to 3D models• Flooding, solar potential / irradiation …• Sensors, IoT (e.g SensorThings)
Graphics: IGN France
Scenario’s
• Integration of city information with Dynamic model• Goal: reduce winter death (urban services)• Building humidity is related to illness • Integrate sensor readings with city model
• Using CityGML and Sensor Web Enablement : “Dynamizer” Graphics: Greenwich and OSGB
Use case: Urban Planning and combined use of 3D urban data (BIM + Geo)• Evaluation of BIM project in CityModel• Assessing Urban planning Rules for validation• Inputs
• BIM IFC project• CityModel: CityGML (according to French IGN REF3DNAT profile LOD1/2/3• IGN National Reference data: Parcels, Roads, …
• Outputs• BIM project converted in CityGML
• Rennes Metropole / Bruz: provision of CityGML model from IGN Airborne imagery
• Use case contractor: University Of Melbourne
IFC to CityGML
• creates CityGML objects and assigns the information from corresponding ifc model elements• creates the Building feature based on information from IfcBuilding element• extracts the geometry of the room from IfcSpace element• extracts the geometry of the room from IfcSlab element• extracts the geometry of the roof from IfcRoof element• creates the exterior MultiSurface boundary geometry of the building from the IfcWall element and tests for openings (will
not include windows and doors, slabs)• tests if the openings are Windows or Doors type. Will not include them in the boundarySurface and creates the window
and door CityGML objects• tests for the existence of Roof/surface. Will not include them in boundarySurface and will create the roofSurface object• adds floorSurface from IfcSlab to the boundary of the project• creates Door object from IfcDoor• creates FloorSurface from IfcSlab• creates RoofSurface as a MultiSurface BoundarySurface• creates Window from IfcWindow and adds attributes
Scenario 2• Building Humidity in Social Housing
– Relate sensor readings with a City Model– Dynamize
• Dynamizers– Integrating Sensors with Semantic 3D City Models(Greenwich – London, Technische Universität Mûnchen)
Open Geospatial Consortium FCP1 video https://www.youtube.com/watch?v=aSQFIPwf2oM
OGC Boulder workshop: June 2015
We have been discussing geospatial/BIM integration over the years• OWS4: IFC web services and building data• CEN Paris 2010ish • Boulder 3D summit 2011 • Seoul 2012• Barcelona 2015 – ISO/TC59 update
We discussed indoor• IndoorGML• CityGML CRs and v3.0 development• CityGML/Indoor/LandInfra ad hocs
Space
Natural Asset
Linear Structure
Structure
BuildingFacility / Built
World
Sub-SystemsSystem
Level
Site
Real Property Asset
Country
State / Province
County
Region
Node
Segment
Room
Space
System
Level
Sub-Systems
Room
Water / Sea
Land / Parcel
Underground
Air / Space
Overlay
Overlay
Components
Components
City
Traditional CAD/BIM
Traditional GIS
CONTINUUM OF SCALES
Continuum of scales
Image: T. Kolbe, 2007
CityGML – data model for city data integration and 3D
An Observation PostA Vertical Obstruction
A Navigation Beacon
What is this?
Shared understanding
Kindly offered by Mark McInerneyAssistant Director, Defence Spatial Standards Office, DIGO, Australia
Integrated Digital Built Environment
White paper headlines
• Ensure that for domains in which OGC and bSI standards overlap (have touch points) that the conceptual models are identical
• Thereby to ensure that data can be seamlessly translated from an OGC standard to a bSI standard and vice versa
• Thereby offering the users trust and continuity of data between geospatial and construction domain
Three levels of coordination
1. Management (to meet 3 times p.a.). Include responsibility to develop business /operating models to suite joint initiatives.
2. Planning (to meet 4 times p.a.) To be between the Principal leads of OGC and the Infrastructure Room Steering Committee of bSI with liaison with the Management level.
3. Development (to meet 3/4 times p.a.) To be effected by working groups as appropriate under the guidance/ direction of the Planning level.
Real world Virtual model
Social/Experience
Evolving application areas
Energy
Emergencies and
Resilience
EnvironmentTransport
Built Environment
Scenario planning (example policy modelling – big data)
Simulation (example 5G planning and asset utilisation)
Supply-Demand optimisation(example: reduce congestion)
Evolving need for built environment data
Geospatial / BIM
BUILDING/INFRASTRUCTURE LIFECYCLE
Use of Geo und BIM technologies:
Courtesy of Bart de Lathouwer, © 2015 Open Geospatial Consortium
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Copyright © 2015 Open Geospatial Consortium
From command and control to
Connect and collaborate
We’ll achieve- empowerment/engagement- integration/interoperability- cost savings/efficiencies- Better/safer environment
The Integrated Digital Built Environment
PIM
Environment
Modelling
Built AssetModelling
• data capture• regional analysis• scenario modelling• forecasting
Understanding & Managing the Natural & Built Environment
Planning, Design, Construction & Operation of Built Assets
Geospatial Modelling(OGC: GML schema / W3C: RDF triples)
Digital Engineering(bSI: IFC schema, MVD & bSDD)
provides contextreturns as-built data• design modelling
• performance analysis• simulation• construction
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