Energy Visualization and 3D city modelling using GIS. Polycity conference,

Transcription

1 Energy Visualization and 3D city modelling using GIS Polycity conference, Prof. Dr. Volker Coors,

2 Szenario Scharnhauser Park MODELING ENERGY DEMAND FOR HEATING AT CITY SCALE Aneta Strzalka 1, Ursula Eicker 1, Volker Coors 2 and Jürgen Schumacher 1 Prof. Dr. Volker Coors,

3 Szenario Scharnhauser Park GIS CityModel (ALK + Laser scanning) Access Annual measured data INSEL Comparison annual heating energy demand/consumption (Building scale) Heating energy consumption/demand in kwh Day of the year Measurement Model 2 M-Bus Hourly measured data Weather station Weather data Comparison annual heating energy demand/consumption (City scale) MODELING ENERGY DEMAND FOR HEATING AT CITY SCALE Aneta Strzalka 1, Ursula Eicker 1, Volker Coors 2 and Jürgen Schumacher 1 Prof. Dr. Volker Coors,

4 DO THIS FOR AN ENTIRE CITY Prof. Dr. Volker Coors,

5 Data Requirements Per Building / per Building facade Volume Roof area Height (with roof, without roof) Sun exposed facades Orientation of facades and roofs Percentage of windows per facades u-values for facades (used material) Prof. Dr. Volker Coors,

6 What we have: CityGML LoD buildings in Stuttgart BoundedBy WallSurface, RoofSurface, GroundSurface Building attributes: year of construction Some textured models Prof. Dr. Volker Coors,

7 Prof. Dr. Volker Coors,

8

9 Urban Planning

10 CityGML: History CityGML (Best Practice) OGC CityGML OGC r CityGML CityGML (DRAFT) OGC Prof. Dr. Volker Coors

11 Gebäude Brücke Straße Bürgersteig Haltestelle Baum Verkehrszeichen Stadtmessungsamt Stuttgart

12 bldg:building veg:vegetation dem:relief gen:genericcityobject: Bridge tran:road Prof. Dr. Volker Coors

13 CityGML structure

14 External Reference Quelle: OGC CityGML Implementation Specification 1.0, Prof. Dr. Volker Coors

15 LOD2 Geometry lod2terraininterscetion gml:multicurve _AbstractBuilding lod2solid gml:solid lod2multisurface gml:multisurface lod2multisurface boundedby BoundarySurface WallSurface RoofSurface GroundSurface Prof. Dr. Volker Coors

16 Prof. Dr. Volker Coors,

17 Some details on data Buildings Polygons LOD Polygons LOD Unclassified LOD2 0 Ground LOD2 0 Wall LOD Roof LOD unconnected comp 2553 Number Buildings <5 <20 <40 <60 <80 <100 <200 Number of Polygons Calculation failed for 445 buildings Prof. Dr. Volker Coors,

18 CAT3D database CAT3D Prof. Dr. Volker Coors,

19 Data Requirements Per Building / per Building facade Volume Roof area Height (with roof, without roof) Sun exposed facades Orientation of facades and roofs Percentage of windows per facades u-values for facades (used material) Prof. Dr. Volker Coors,

20 Volume calculation Triangulation: 45 Tetraeder Prof. Dr. Volker Coors,

21 Sun exposed facades Prof. Dr. Volker Coors,

22 Window Area per Facade Image Segmentation Window extraction Prof. Dr. Volker Coors,

23 Window Area per Facade Textur k_front k_hinten k_hinten_treppe k_hinten_wand Auflösung Fensterfläche (Pixel), manuell ermittelt 1565 x x x x 2535 Fensterfläche prozentual Fensterfläche Algorithmus (Pixel) Fensterfläche Algorithmus (%) % 22,2 % % % % % 0 0 % % k_knick 44 x % (83990) 0 % k_links 1368 x % ,7 % 2535 k_rechts 1368 x % % Prof. Dr. Volker Coors,

24 U-value - Building Typology & Year of construction Prof. Dr. Volker Coors,

25 Classification Prof. Dr. Volker Coors,

26 Building Typology Prof. Dr. Volker Coors,

27 Conclusions - 3D City Model is a valuable data source - Data quality is an issue - Availability of 3D City Models? in BW: Stuttgart, Karlsruhe, Heidelberg - ADV: LoD 1 Modell for all German Cities in 2013 LoD 2 Modell in progress Prof. Dr. Volker Coors,

28 Barks, Fuchs: CP 2, BL DD 11 Prof. Dr. Volker Coors

29 CityGML und IFC Theatre / World Country Installation / Region State / Province County City Geospatial Information (GIS) Natural Asset Air / Space Underground Site Water / Sea Real Property Asset Land / Parcel Facility / Built Building information (Building Information Models) Building System Space Overlay Structure System Space Overlay Linear Structure Sub-Systems Level Sub-Systems Level Node Components Room Components Room IAI-IFC Usage NIBS 2008 Segment