Jörg Isele

Proposed methodology for generation of building information model with laserscanning

Abstract For refurbishment and state review of an existing old building, a new model reflecting the current state is often required especially when the original plans are no longer accessible. Laser scanners are used more and more as surveying instruments for various applications because of their high-precision scanning abilities. For buildings, the most notable and widely accepted product data model is the IFC product data model. It is designed to cover the whole lifecycle and supported by various software vendors and enables applications to efficiently share and exchange project information. The models obtained with the laser scanner, normally sets of points (“point cloud”), have to be transferred to an IFC compatible building information model to serve the needs of different planning states. This paper presents an approach designed by the German Research Center in Karlsruhe (Forschungszentrum Karlsruhe) to create an IFC compatible building information model from laser range images. The methodology through the entire process from data acquisition to the IFC compatible product model was proposed in this paper. In addition, IFC-Models with different level of detail (LoDs) were introduced and discussed within the work.

Application of IFC Product Data Model in Computer-Integrated Building Prefabrication

Computer-integrated prefabrication (CIP) of wall elements for individually planned houses improves the quality, while reducing the time consumption and costs of architecture, engineering, and construction. It will, however, only be successful, if the information exchange between planning (architect) and manufacturing (machine) can be automated in an effective and efficient manner. A continuous information flow requires a neutral data model. The most notable and widely accepted product data model for buildings is the IFC model which enables applications to efficiently share and exchange project information. This paper will present an approach developed to applying the IFC product data model in computer-integrated prefabrication. Entire information flow from the planning stage to the computer-integrated manufacturing process will be described. The mechanisms, including all steps necessary to prepare the building model for prefabrication with floor-to-ceiling AAC (Autoclaved Aerated Concrete) wall elements, will be outlined. Finally, the performance and validation of the mechanisms developed will be reported.

Nachhaltiges Planen, Bauen und Wohnen im Informationszeitalter – Herausforderungen an die Automatisierungs- und Informationstechnik (Sustainable Design, Construction and Living in the Information Age – Challenges for Automation and Information Technology)

Das Ziel der Arbeit besteht darin, eine Übersicht über den gegenwärtigen Entwicklungsstand auf den Gebieten “Planen, Bauen und Wohnen” aus der Sicht der Automatisierungstechnik und der Informationstechnik zu geben. Schwerpunkte der Betrachtungen sind der Einsatz informationstechnischer Methoden während des Lebenszyklus eines Gebäudes, die Automatisierung in der Vorfertigung und auf der Baustelle sowie die Hausautomatisierung. Beispiele für zukunftsweisende Projekte und vor allem die skizzierten Perspektiven zeigen die neuen Herausforderungen an Automatisierungs- und Informationstechnik.

Automatisierungs- und Steuerungskonzept für ein hochflexibles Handhabungssystem zum Gußputzen

Im Rahmen des BMFT-Verbundprojektes „Komponenten fur fortgeschrittene Handhabungssysteme“ wurde das hochflexible System zur Bearbeitung von Gusteilen COMETOS (Coordinate Measuring and Tooling System) entwickelt.