SIST-TP CWA 18046:2024
(Main)Position markers for digital applications on construction sites, structural monitoring and BIM-applications
Position markers for digital applications on construction sites, structural monitoring and BIM-applications
This document is applicable to construction processes where the usual surveyor’s control points are to be used not only for geometry control, but other applications such as laser scanning, localization of autonomous vehicles, photogrammetry, or VR/AR applications.
It provides a framework for making accurate survey point information available to digital applications and other trades. This includes the layout of markers, a naming convention for markers and a common digital interface for the read-out-data of markers.
The document builds on existing standards and conventions and collates them where applicable.
The document is intended to be used on construction sites and in existing buildings by planners (architects, civil engineers,…), surveyors, construction companies, software providers, UXV operators, BIM stakeholders, and on site machines/devices/systems.
The survey point information may be utilised not only during the construction but also during maintenance throughout the life of the facility.
Positionsmarkierungen für digitale Anwendungen auf Baustellen, für Strukturmonitoring und BIM-Anwendungen
Marqueurs de position pour les applications numériques sur les chantiers, pour la surveillance structurelle et les applications BIM
Oznake položaja za digitalne aplikacije na gradbiščih, strukturni nadzor in BIM-aplikacije
Ta dokument se uporablja za gradbene procese, pri katerih se običajne geodetske nadzorne točke ne uporabljajo zgolj za geometrijski nadzor, ampak tudi za druge aplikacije, kot so lasersko skeniranje, lokalizacija avtonomnih vozil, fotogrametrija ali aplikacije VR/AR.
Zagotavlja okvir za dajanje natančnih informacij o geodetskih točkah na voljo za digitalne aplikacije in druge dejavnosti. To vključuje postavitev oznak, poimenovanje oznak in skupni digitalni vmesnik za brane podatke oznak.
Dokument temelji na obstoječih standardih in konvencijah ter jih združuje, kjer je to primerno.
Namenjen je uporabi na gradbiščih in v obstoječih stavbah. Uporabljali naj bi ga načrtovalci (arhitekti, gradbeni inženirji itd.), geodeti, gradbena podjetja, ponudniki programske opreme, upravljavci sistemov UXV, deležniki BIM ter stroji/naprave/sistemi na kraju samem.
Informacije o geodetskih točkah je mogoče uporabiti ne le med gradnjo, ampak tudi med vzdrževanjem skozi celotno življenjsko dobo objekta.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2024
Oznake položaja za digitalne aplikacije na gradbiščih, strukturni nadzor in BIM-
aplikacije
Position markers for digital applications on construction sites, structural monitoring and
BIM-applications
Positionsmarkierungen für digitale Anwendungen auf Baustellen, für Strukturmonitoring
und BIM-Anwendungen
Marqueurs de position pour les applications numériques sur les chantiers, pour la
surveillance structurelle et les applications BIM
Ta slovenski standard je istoveten z: CWA 18046:2023
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
91.010.01 Gradbeništvo na splošno Construction industry in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN
CWA 18046
WORKSHOP
December 2023
AGREEMENT
ICS 35.240.67
English version
Position markers for digital applications on construction
sites, structural monitoring and BIM-applications
This CEN Workshop Agreement has been drafted and approved by a Workshop of representatives of interested parties, the
constitution of which is indicated in the foreword of this Workshop Agreement.
The formal process followed by the Workshop in the development of this Workshop Agreement has been endorsed by the
National Members of CEN but neither the National Members of CEN nor the CEN-CENELEC Management Centre can be held
accountable for the technical content of this CEN Workshop Agreement or possible conflicts with standards or legislation.
This CEN Workshop Agreement can in no way be held as being an official standard developed by CEN and its Members.
This CEN Workshop Agreement is publicly available as a reference document from the CEN Members National Standard Bodies.
CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for
CEN/CENELE CENELEC Members.
C
Ref. No.:CWA 18046:2023 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Marker . 7
4.1 Functionality . 7
4.2 Size and Layout . 7
4.3 Marker ID number . 9
4.4 Tags for data read-out . 9
4.5 Fiducial tags for machine applications . 9
4.6 Handling and application . 9
5 Tags for data read-out . 10
5.1 Functionality . 10
5.2 Content . 10
5.3 Layout and size . 12
5.4 Naming convention . 13
5.5 Handling and application . 13
5.6 How to set up the URL . 13
6 Fiducial tags . 13
6.1 Functionality . 13
6.2 Content . 14
6.3 Layout and size . 14
6.4 Naming convention . 14
6.5 Handling and application . 14
7 Workflow . 14
7.1 Introduction . 14
7.2 Workflow scheme . 14
Annex A (informative) Example of implementation on European pilot construction sites . 16
A.1 Use on construction sites . 16
A.2 Markers . 16
A.3 Use with different (fiducial) tags . 18
A.4 Read-out data of QR code . 18
A.5 Example of folder location in project . 22
Annex B (informative) Cybersecurity . 23
Bibliography . 24
European foreword
This CEN Workshop Agreement has been developed in accordance with the CEN-CENELEC Guide 29
“CEN/CENELEC Workshop Agreements — A rapid prototyping to standardization” and with the relevant
provisions of CEN/CENELEC Internal Regulations — Part 2. It was approved by a Workshop of
representatives of interested parties on 2023-11-07, the constitution of which was supported by CEN
following the public call for participation made on 2023-01-18. However, this CEN Workshop Agreement
does not necessarily include all relevant stakeholders.
The final text of this CEN Workshop Agreement was provided to CEN for publication on 2023-11-28.
Results incorporated in this CWA received funding from the European Union’s Horizon 2020 research
and innovation programme under grant agreement No 958450 (BIMprove).
The following organizations and individuals developed and approved this CEN Workshop Agreement:
— Zurich University of Applied Sciences (Ruprecht Altenburger, Antje Sydow)
— AFGruppen AS (Øyvind Kjøllesdal)
— Catenda AS (Dag Fjeld Edvardsen, Torvald Andresen)
— DigitalTwin Technology GmbH (Rahul Tomar, Rehan Khan)
— Fraunhofer Gesellschaft IAO (Matthias Aust)
— HRS Real Estate AG (Antonio Lopez-Rios, Mehdi Mdidech)
— RWTH Aachen University (Jörg Blankenbach)
— SINTEF Manufacturing (Gabor Sziebig)
— Vías y Construcciones, S.A. (Manuel Menéndez Muñiz)
Secretariat: DIN (Christian Grunewald, Yusuf Yilmaz)
Attention is drawn to the possibility that some elements of this document may be subject to patent rights.
CEN-CENELEC policy on patent rights is described in CEN-CENELEC Guide 8 “Guidelines for
Implementation of the Common IPR Policy on Patent”. CEN shall not be held responsible for identifying
any or all such patent rights.
Although the Workshop parties have made every effort to ensure the reliability and accuracy of technical
and non-technical descriptions, the Workshop is not able to guarantee, explicitly or implicitly, the
correctness of this document. Anyone who applies this CEN Workshop Agreement shall be aware that
neither the Workshop, nor CEN, can be held liable for damages or losses of any kind whatsoever. The use
of this CEN Workshop Agreement does not relieve users of their responsibility for their own actions, and
they apply this document at their own risk. The CEN Workshop Agreement should not be construed as
legal advice authoritatively endorsed by CEN.
Introduction
The digitalization of the construction industry has brought numerous new digital technologies onto
construction sites and existing infrastructure.
The spectrum ranges from digital measurement and quality control and the operation of robots and
(partly) autonomous vehicles to visualization tasks using augmented and virtual reality systems
(AR/VR). Each of these applications relies on precise geometric information about its own position and
orientation. However, there are currently no common standards: these machines and applications use a
wide variety of optical tags, some of which are proprietary, and all of them have their own data formats
and processing strategies.
Precise position measurements on construction sites or in existing structures under monitoring are
usually in the responsibility of surveyors. They create a network of control points (targets) whose
positions are determined from the official survey points. These targets then serve as the basis for all
further measurements. However, currently no standardized process has been available to make this
geometry information available to other parties.
This workshop agreement aims to provide digital technologies with measured position data from surveys
in a secure manner:
— by defining the properties of suitable position markers and showing example implementations
— by defining a flexible method with which any required tags can be attached at a defined distance to
the marker in the course of the project
— by proposing an automated data transfer of the measurement data via «read-out tags»
— and allows to automatically provide/retrieve additional information, such as validity, accuracy of
measurement, GUID of the associated BIM element or any other data relevant to the project.
The use of the defined position markers is advantageous:
— In the complexity of large construction sites, the many different trades and companies all use their
own markers and tags without their content or information on their validity being accessible. The use
of standardized markers avoids duplication and errors.
— Measuring and managing the survey data is in the hands of the commissioned surveyors or the BIM
manager, so that the digital applications can work in the project coordinate reference system.
— The method described is ideally suited for use in BIM processes: It is recommended to store the
position markers in a marker model in the BIM system. Authorized users can retrieve current, correct
and uniform measurement data via the BIM system and password-protected “read-out tags”.
The position markers and their usage were originally developed and tested as part of the BIMprove
project of the Horizon funding programme (No 958450). This document was commonly created by
surveyors, drone scientists, VR specialists, BIM managers and BIM software specialists.
For the future revision of the CWA the authors are grateful for feedback on practical implementation and
possible suggestions to marker@bimprove-h2020.eu.
1 Scope
This document is applicable to construction processes where the usual surveyor’s control points are to
be used not only for geometry control, but other applications such as laser scanning, localization of
autonomous vehicles, photogrammetry, or VR/AR applications.
It provides a framework for making accurate survey point information available to digital applications
and other trades. This includes the layout of markers, a naming convention for markers and a common
digital interface for the read-out-data of markers.
The document builds on existing standards and conventions and collates them where applicable.
The document is intended to be used on construction sites and in existing buildings by planners
...
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