EP3928239A1 - Procédé et dispositif pour créer un modèle de bâtiment numérique - Google Patents

Procédé et dispositif pour créer un modèle de bâtiment numérique

Info

Publication number
EP3928239A1
EP3928239A1 EP20706946.9A EP20706946A EP3928239A1 EP 3928239 A1 EP3928239 A1 EP 3928239A1 EP 20706946 A EP20706946 A EP 20706946A EP 3928239 A1 EP3928239 A1 EP 3928239A1
Authority
EP
European Patent Office
Prior art keywords
building
model
digital
markers
bim
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20706946.9A
Other languages
German (de)
English (en)
Inventor
Oliver Zechlin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schweiz AG
Original Assignee
Siemens Schweiz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG
Publication of EP3928239A1 publication Critical patent/EP3928239A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/12—Geometric CAD characterised by design entry means specially adapted for CAD, e.g. graphical user interfaces [GUI] specially adapted for CAD
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00—Details relating to CAD techniques
    • G06F2111/20—Configuration CAD, e.g. designing by assembling or positioning modules selected from libraries of predesigned modules
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
    • G06F2119/20—Design reuse, reusability analysis or reusability optimisation

Definitions

  • the invention relates to a method and an arrangement for creating a digital building model for an existing building.
  • a virtual image for a building Prior to the creation of a virtual image for a building (digital twin, digital twin) or for a collection of buildings, existing buildings are recorded with scanners, in particular laser scanners. When a building is scanned, measurement points in the building are recorded and processed using suitable devices. However, these measurement points must first be determined by a surveyor and attached in the building in a way that is suitable for scanning.
  • the surveyor usually sets measurement points (anchor points, markers) with the help of a tachymeter or a total station, which are also recorded during the scanning process.
  • This preparatory process takes about the same amount of time as the actual subsequent scan process.
  • the building location is "northed”, i.e. its location is placed by means of coordinates.
  • the system-technical problems of a laser scanner are compensated for by setting anchor points inside the building Spaces) to the so-called “drift”, ie the actual laser point straight line has a curvature. In the case of very large buildings, the curvature of the earth even comes into play here.
  • anchor points that have been placed and measured beforehand by a surveyor
  • these can be used in post-processing by the software for correction (drift correction).
  • the surveyor passes on the information (in particular the positions) to the respective anchor points or markers to the service providers who follow the process and who carry out the scan of the building.
  • Scan trolleys that can be moved in the building (e.g. devices from NavVis) can be used in the building with laser technology Detect attached markers, put them in, and make them available for further digital processing, in particular for use in a digital building information model for the corresponding building.
  • the task is solved by a method for creating a digital building model (e.g. as a "digital twin", i.e. as a digital twin) for an existing building, the method comprising:
  • location points e.g. markers, anchor points in the building
  • referencing in particular by optical referencing and corresponding measurement e.g. by a laser total station or a total station
  • official anchor points outside the building e.g. by measuring with a total station
  • the digital Volume model of the reference floor is used as a reference volume model when creating digital volume models for essentially identical floors of the building.
  • the mobile reading device e.g. scanning device from NavVis
  • IFC Industry Foundation Class
  • the model of the reference storey is used to create the model for identical or essentially identical floors.
  • the structurally identical or essentially structurally identical floors do not have to be physically measured and scanned, since the reference model of the reference floor is used for their modeling.
  • the mobile reading device advantageously supplies a curvature-corrected 3-dimensional point cloud with photos, sensor information, earth's magnetic field, access points and text file for the reference storey.
  • the mobile reading device advantageously supplies a curvature-corrected 3-dimensional point cloud with photos, sensor information, earth's magnetic field, access points and text file for the reference storey.
  • the process optimizes the on-site timing; the surveyor, who has been used consistently up to now, only needs to measure and set marks in sub-areas, e.g. outside the building, as well as the non-uniform structures within the building.
  • the optimization potential of the present method can be increased in particular in the case of uniform buildings or building segments, for example often new office buildings. All uniform floors are treated as "the same part”. It is sufficient to measure, mark and scan one of these uniform floors. All floors which are "duplicated”
  • the processing software recognizes them as “identical” after the scan, and the corrective measures that were marked on the reference floor (which was measured I) are transferred to these "identical” floors. If in the reference floor after the Processing by a computing unit / software, a wall has been straightened, such a "wall line” (from the floor plan) or “wall area” (point cloud observation) is applied to the floors of the same type.
  • the positions / coordinates of the reference areas determined by the surveyor can be transferred to the "floor clones" based on them (x and y).
  • the z-axis information could also be determined and recorded automatically on the basis of additional floors. through BIM object information be defined, corrected, or refined.
  • Floor heights usually do not differ "in the building sandwich” (lobby and loft are often different).
  • the models for the storeys are advantageously created using a user-friendly "drag and drop” process: a building can thus be piled up in the model "like a Lego brick”. Information can thus be given to the storey layers in the model, e.g. through an inheritance mechanism that inherits parameters (e.g. alignment and quality parameters, properties, or attributes from the reference floor to the clone floors based on them (i.e. the copies of the reference floor).
  • parameters e.g. alignment and quality parameters, properties, or attributes from the reference floor to the clone floors based on them (i.e. the copies of the reference floor).
  • the mobile reading device advantageously uses software to solve SLAM problems.
  • SLAM Simultaneous Localization and Mapping, Simultaneous Position Determination and Map Creation
  • the mobile reading device can thus function as a mobile robot that simultaneously creates a plan for the reference storey when reading in the measuring points and the associated location coordinates.
  • the plan can advantageously be used as part of the building information model (BIM).
  • a first advantageous embodiment of the invention lies in the fact that the reference volume model of the reference storey is used when creating digital volume models for essentially identical storeys of a further building.
  • the present invention makes it possible, among other things, to treat these uniform building segments as identical parts. It is therefore sufficient to measure and mark one of these uniform floors. All floors that are "duplicated” on top of each other are recognized as “identical” after scanning by the processing software, and possibly corrective Measures which are transferred to these "identical” floors on the reference floor (which was measured or marked). If a wall was straightened in the reference floor after processing by a computer unit with appropriate software, such a "wall line” (for basic crack observation) or a "wall surface” (with regard to point cloud observation) applied to the floors of the same type.
  • BIM model is created or expanded based on the reference volume model of the reference floor.
  • Building Information Modeling is a process for the integrated and thus optimized planning, creation and operation of buildings.
  • Building data is stored and maintained in a virtual, digital building model (BIM model, building information model) in a machine-readable notation, e.g. in a corresponding database to which those involved (architect, planner, building contractor, building technology, facility management, etc.) can access.
  • the digital building model can e.g. be drawn up in IFC (Industry Foundation Classes) notation.
  • a further advantageous embodiment of the invention is that the referencing of the official anchor points for establishing the location points for the markers is carried out by a laser total station measurement or by triangulation. With electronic total stations, the measurements can be carried out very precisely and quickly.
  • the determined data (for example in the form of three-dimensional measuring points) are advantageously loaded onto appropriate storage media or directly into appropriate computer programs or data models.
  • the machine-readable markers include an optically readable identifier (for example QR code, barcode).
  • the machine-readable optical identifiers of the markers can easily be attached to accessible locations in the building and read in by an optical acquisition unit (eg laser scanner; eg scanning device from NavVis).
  • the acquisition unit can use appropriate processing means (processor, software) to further process the read-in data (measurement points for location data), for example to compensate for drift.
  • the machine-readable markers comprise an RFID tag.
  • RFID tags can e.g. be mounted under plaster.
  • the registration unit advantageously recognizes markers that are present in the building and that are identified or referenced by RFID tags.
  • the task is also achieved by an arrangement for creating a digital building model (digital twin) for an existing building, the arrangement comprising:
  • BIM Building information model
  • the storage medium is set up so that the reference volume model can be stored as a BIM model.
  • the reference volume model can be used directly for building data modeling.
  • Building information modeling is a process for the integrated and thus optimized planning, creation and operation of buildings.
  • Building data is stored and maintained in a virtual, digital building model (BIM model) in a machine-readable notation, e.g. in a corresponding database to which the parties involved (architect, planner, construction contractor, building services, facility management, etc.) can access.
  • the digital building model can e.g. be created in IFC (Industry Foundation Classes) notation.
  • IFC Industry Foundation Classes
  • a further advantageous embodiment of the invention is that the digital volume models for the floors that are essentially identical to the reference floor can be stored as a BIM model.
  • the present invention makes it possible, inter alia, to treat these uniform building segments as identical parts. It is therefore sufficient to measure and mark one of these uniform floors.
  • the storage of floors identical to the reference floor in the BIM model enables the BIM model to be created efficiently.
  • FIG. 2 shows an exemplary arrangement for creating a digital building model for an existing building
  • FIG. 5 shows an exemplary flow diagram for a method for creating a digital building model for an existing building.
  • FIG. 1 shows an exemplary excerpt from a city map with exemplary officially measured anchor points OAP1-OAP4.
  • anchor points OAP1-OAP4 are determined or used in the field of geodesy, in particular engineering geodesy, for example for land surveying, cadastral surveying or building surveying.
  • Anchor points OAP1 - OAP4 are also referred to as survey points or measuring points. She can for example be defined as a trigonometric point with corresponding coordinates by triangulation.
  • anchor points are also referred to as height control point, geodetic control point, height marker, position control point, etc.
  • the anchor points OAP1 - OAP4 can be defined, for example, as position coordinates in a Gauss-Krüger coordinate system or in a UTM (Universal Transverse Mercator) coordinate system.
  • location points (markers) in the building are determined. These location points (markers) in the building are marked with appropriate identifiers (e.g. QR code). These location points (markers) in the building can be read in, evaluated and stored in a building information model using suitable reading devices (e.g. scanning device from NavVis).
  • suitable reading devices e.g. scanning device from NavVis.
  • FIG. 2 shows an exemplary arrangement for creating a digital building model (digital twin) BIM for an existing building GB.
  • the arrangement includes:
  • Means MG1, AV1, MG2, AV2 for reading in machine-readable markers M1, M2 attached to the specified location points in the reference story, with a drift compensation of the geometry of the reference story based on the position of the read-in markers M1, M2 takes place, and being a digital Volume model BIM for the rooms on the reference floor can be created in a suitable notation and stored in a storage medium DB;
  • processing means S to use the digital volume model BIM of the reference floor as a reference volume model when creating digital volume models for floors of the building GB or of another building that are essentially identical to the reference floor.
  • the model of the reference storey is used for the creation of a model for identical or essentially identical storeys.
  • the structurally identical or essentially structurally identical floors do not have to be physically measured and scanned, since the reference model of the reference floor is used for their modeling. This procedure is also efficient if the reference model of the reference floor cannot always be used one-to-one for a further floor, and manual adjustments (e.g. by tailoring) may be necessary by a modeler.
  • the mobile reading device (scanning device, trolley, drone) MG1, MG2 advantageously provides a curvature-corrected three-dimensional point cloud with photos, sensor information, geomagnetic field, access points and text file for the reference floor.
  • the storage medium DB is advantageously set up so that the reference volume model can be stored as a BIM model BIM.
  • the storage medium DB is advantageously set up so that the digital volume models for the floors that are essentially identical to the reference floor can be stored as BIM model BIM, for example in IFC notation (Industry Foundation Class).
  • BIM model BIM for example in IFC notation (Industry Foundation Class).
  • the establishment of location points M1, M2 (markers, anchor points in the building) in the building GB by referencing Ref1, Ref2 of official anchor points OAP5, OAP6 is carried out, for example, by a laser tachymeter LT or by triangulation.
  • MGI mobile reading device
  • NavVis only a single floor has to be scanned as a reference floor and stored in a digital model.
  • the mobile reading device MGI comprises, for example, an optical recording device AV1 for reading in machine-readable markers M1, M2 attached to the fixed location points in the reference storey.
  • AV1 optical recording device
  • a drone (unmanned aircraft) MG2 with a corresponding recording device AV2 can also be used to read in machine-readable markers M1, M2 attached to the defined location points.
  • the mobile reading devices MG1, MG2 can move independently autonomously in the building, or controlled by an operator B.
  • the mobile device MG1 can e.g. a trolley with appropriate measuring equipment AV1 can be used, which is pushed through the building GB by an operator B, e.g. the M3 trolley from Navvis GmbH.
  • a mobile robot can also be used as a mobile device for recording the target state, e.g. a driving robot with appropriate measuring devices that drives around autonomously or semi-autonomously in the relevant building.
  • a drone (unmanned aircraft) with appropriate measuring devices, which moves autonomously in the building GB and / or around the building GB, can also be used as the mobile device MG2 for recording the target state.
  • the advantage of using an MG2 drone is, among other things, that it can be used very easily in stairs or stairwells.
  • a drone can be used autonomously (with appropriate programming and control), semi-autonomously, or manually (ie controlled by an operator).
  • the location data (location points) OPD1, OPD2 of the markers M1, M2 read by the recording devices AV1, AV2 can be forwarded to a server S via suitable communication links KV1, KV2 (for example, via appropriate radio links, WLAN, Internet, cellular connection).
  • the location point data OPD1, OPD2 of all read-in markers in the building GB can be sent to the server S as point clouds.
  • the Sever S (computer with appropriate processing and storage means) analyzes the point cloud and maps it in a building information model BIM, for example in the form of a digital volume model.
  • An advantage of the invention is that a reference volume model of a reference floor is used when creating digital volume models for essentially identical floors of the building. There are uniform building segments in every building. The present invention enables i.a. to treat these uniform building segments as identical parts. It is therefore sufficient to measure and mark one of these uniform floors.
  • the building information model BIM is stored in a suitable database DB, e.g. in an in-memory database, which enables quick access.
  • the server S is advantageously implemented in a cloud infrastructure C.
  • FIG. 3 shows an exemplary marker M3 for a defined location in a building.
  • the marker M3 advantageously comprises a machine-readable or an optically readable identifier (for example QR code, barcode).
  • the machine-readable optical identifiers of the markers can easily be attached to accessible places in the building and read in by an optical acquisition unit (eg laser scanner; eg scanning device from NavVis).
  • the acquisition unit can with appropriate processing means (processor, software) to the processed data (measurement points for location data), for example to compensate for drift.
  • the M3 marker is advantageously suitable for solving SLAM problems (SLAM: Simultaneous Localization and Mapping, simultaneous position determination and map creation).
  • the mobile reading device can thus function as a mobile robot that simultaneously creates a plan for the corresponding building floor when reading in the measuring points (markers) and the associated location coordinates.
  • the marker M3 advantageously includes a cross symbol for exact localization and an arrow for orientation (e.g. orientation according to the compass direction).
  • the marker M3 advantageously includes a unique identification code (e.g. ID number).
  • the M3 marker is advantageously made of a robust material that can also be used on the outside wall of a building.
  • the marker M3 advantageously includes bibliographic data (e.g. time of location referencing, time of attachment, responsible company, responsible processor, official anchor point on the basis of which the referencing took place).
  • FIG. 4 shows exemplary model views SM1-SM4 for an exemplary building on an exemplary user interface UI.
  • the exemplary user interface UI can be shown, for example, on a display (eg touchscreen) of a computer display.
  • the exemplary model views SM1-SM4 show different views or types of representation of digital volume models as aspects (parts) of a building information model.
  • the views SM1 - SM4 show exemplary 2D or 3D views of the building model.
  • the location coordinates of the model are based on the markers that were read in and evaluated when the building belonging to the model was scanned.
  • the user interface UI comprises a menu bar ML for user entries or user selections.
  • FIG. 5 shows an exemplary flow chart for a method for creating a digital building model for an existing building. The procedure includes:
  • a suitably equipped mobile reading device e.g. scanning device, navigation device from NavVis
  • drift compensation of the geometry of the reference floor taking place based on the position of the markers read in;
  • a mobile reading device eg scanning device from the NavVis company
  • a mobile reading device eg scanning device from the NavVis company
  • the model of the reference storey is used to create the model for identical or essentially identical floors.
  • the structurally identical or essentially structurally identical floors do not have to be physically measured and scanned, as their Modeling the reference model of the reference storey can be used. This procedure is still efficient even if the reference model of the reference storey cannot always be used one-to-one for a further storey, and manual adjustments (eg by tailoring) may be necessary by a modeler.
  • the mobile reading device (scanning device) advantageously supplies a curvature-corrected three-dimensional point cloud with photos, sensor information, geomagnetic field, access points and text file for the reference floor.
  • a point cloud file can be translated or converted into the notation of a building information model (BIM model) using an appropriate converter.
  • BIM model building information model
  • a BIM model is advantageously created or expanded based on the reference volume model of the reference floor, e.g. in IFC notation.
  • the method according to the invention can be implemented with appropriately set up hardware and software components (for example processor unit, storage means, input / output units, software programs).
  • the method according to the invention enables, in particular, an optimized and efficient implementation or creation of a digital twin (digital twin). In building construction and building management, this enables, among other things, an improvement in costs and time for, among other things, executing and offering sales units.
  • the invention relates to a method and an arrangement for creating a digital building model for an existing building, location points in the building being established for a reference floor of the building by referencing official anchor points outside the building; machine-readable markers are attached to the specified location points on the reference floor; the markers in the reference storey being read in by a suitably set up mobile reading device (scanning device), the geometry of the reference storey being compensated for drift based on the location of the markers read in; a digital volume model for the rooms on the reference floor is created in a suitable notation; and wherein the digital volume model of the reference storey is used as a reference volume model when creating digital volume models for essentially identical storeys of the building.
  • OPD1 OPD2 location point

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  • Engineering & Computer Science (AREA)
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  • Geometry (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
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  • Pure & Applied Mathematics (AREA)
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  • Architecture (AREA)
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Abstract

La présente invention concerne un procédé et un dispositif pour créer un modèle de bâtiment numérique pour un bâtiment existant. Le procédé comprend les étapes suivantes : des points locaux dans le bâtiment sont déterminés par référence à des points d'ancrage officiels à l'extérieur du bâtiment pour un étage de référence du bâtiment ; des marqueurs lisibles par machine sont installés dans l'étage de référence aux points locaux déterminés ; les marqueurs dans l'étage de référence sont lus par un appareil de lecture (appareil de balayage) mobile agencé de manière correspondante ; sur la base de la position locale des marqueurs lus, il est effectué une compensation de dérive de la géométrie de l'étage de référence ; un modèle volumique numérique pour les pièces dans l'étage de référence est créé selon une notation appropriée ; et le modèle volumique numérique de l'étage de référence est employé comme modèle volumique de référence lors de la création de modèles volumiques numériques pour des étages sensiblement identiques du bâtiment.
EP20706946.9A 2019-02-20 2020-02-07 Procédé et dispositif pour créer un modèle de bâtiment numérique Pending EP3928239A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019202304.5A DE102019202304B4 (de) 2019-02-20 2019-02-20 Verfahren und Anordnung zum Erstellen eines digitalen Gebäudemodells
PCT/EP2020/053057 WO2020169358A1 (fr) 2019-02-20 2020-02-07 Procédé et dispositif pour créer un modèle de bâtiment numérique

Publications (1)

Publication Number Publication Date
EP3928239A1 true EP3928239A1 (fr) 2021-12-29

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US (1) US20220004671A1 (fr)
EP (1) EP3928239A1 (fr)
CN (1) CN113424190A (fr)
DE (1) DE102019202304B4 (fr)
WO (1) WO2020169358A1 (fr)

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CN113656877B (zh) * 2021-08-23 2024-04-16 深圳须弥云图空间科技有限公司 多层户型的模型生成方法、装置、介质及电子设备
CN115600267B (zh) * 2022-12-14 2023-04-18 深圳奥雅设计股份有限公司 一种用于城市公共空间设计的计算机视觉分析方法及系统
CN116451331B (zh) * 2023-06-15 2023-09-12 厦门农芯数字科技有限公司 一种猪场数字孪生模型的管理方法、装置及设备

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US20120259594A1 (en) * 2011-04-08 2012-10-11 Azam Khan Bim based 3-d visualization
KR101255950B1 (ko) * 2011-06-13 2013-05-02 연세대학교 산학협력단 위치기반 건설 현장 관리 방법 및 시스템
US9811714B2 (en) * 2013-08-28 2017-11-07 Autodesk, Inc. Building datum extraction from laser scanning data
CN105758386B (zh) * 2014-12-15 2018-12-04 广州蓝图地理信息技术有限公司 一种激光点云与航空影像集成的建筑物三维建模方法
CN109102537B (zh) * 2018-06-25 2020-03-20 中德人工智能研究院有限公司 一种二维激光雷达和球幕相机结合的三维建模方法和系统

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DE102019202304B4 (de) 2021-01-28
WO2020169358A1 (fr) 2020-08-27
DE102019202304A1 (de) 2020-08-20
US20220004671A1 (en) 2022-01-06
CN113424190A (zh) 2021-09-21

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