AR-AQ-Bau - Use of Augmented Reality for acceptance and quality assurance on construction sites
Starting point / motivation
The construction industry has been one of the least digitized industries so far. At present, progress evaluation, functional tests, and investigation of deficiencies is still mainly done manually by paper and e-mails.
A special case is the installation (HVAC), which has become increasingly complex and now accounts for up to 35 % of the construction costs of buildings. The AR-AQ-Bau project therefore focuses on the acceptance and remote support of HVAC-Systems with Augmented Reality.
Two examples of complex HVAC-Systems from pilot projects in BIM:
Contents and goals
The AR-AQ-Bau project develops an advanced AR system for the acceptance control of energy-relevant systems in the field of HVAC. The starting point is the BIM model. All information in the BIM model should be available to all parties in the construction process and should be kept up-to-date in a closed loop approach for the first time. Through this "closed loop data communication", construction progress and investigation on the construction site can be marked in the AR model and thus kept up-to-date.
The project focuses on interaction systems in order to transfer comments, images, thermal image recordings and information of new components into the AR model and then to transfer it into the BIM model ("closed loop"). This makes this information visible to everyone involved in the building process. The thermal imager allows function control and detection of heat losses in the installation system.
With the new Remote Expert system external experts can be connected to the AR system to support the construction investigation. The experts see the same AR model and can insert instructions in the AR model for the people on the construction site. These features increase the quality efficiency of the completed structures, as many faults are only discovered with these features.
Another challenge in the project is the reliable tracking of the AR models in construction site environment. The currently existing tracking systems cannot cope with the difficult conditions on construction sites and must be adapted.
In the first step, an application and requirement analysis of augmented reality is carried out in the planning, construction and operation phases - with the focus on the construction phase.
Subsequently, with the help of experts, the necessary requirements for tools, tracking, layouts and workflows for the HKLS acceptance or for the Remote Expert system are detected and tried to be implemented in the AR-Tool. All development (including data exchange, tracking, remote expert system, layouts) will be tested in practice on renowned construction projects (e.g. Future Art Lab and University Hospital St. Pölten).
Among other things that are evaluated, the site suitability, the accuracy of the tracking system, the setup time of the AR model, the change of the documentation, the user satisfaction, a possible increase of the quality and the energy efficiency of buildings.
The project team combines research expertise from construction process management, augmented reality, BIM modeling and international engineering experience
The aim of this research project is the development and simultaneous evaluation of a construction site-suitable augmented reality (AR) system included a Remote-Expert-System and a BIM-Closed-Loop data transfer system for improving the quality of construction, building security and energy efficiency as well as increasing the efficiency of construction investigation. The potential and the requirements of AR in the phases of construction and operation should be determined.
TU Wien IBPM, Institute of Interdisciplinary Construction Process Management, Construction Process and Methods
Project or cooperation partners
- FCP Fritsch, Chiari & Partner ZT GmbH
- TU Wien IMS, Institute of Visual Computing and Human-Centered Technology, Interactive Media Systems
- ARIOT OG
- Daqri Holographics GmbH & Co KG