Philipp Klimant

Being there again Presence in real and virtual environments and its relation to usability and user experience using a mobile navigation task

The possibility of using virtual environments instead of real field or laboratory environments is a promising research field. However, before virtual environments are able to replace the traditional environments the differences between the methods must be worked out. We take up on previous studies which compared different real and virtual environments concerning presence and usability and expand the research on the factor of user experience. We compared a virtual field environment (CAVE Cave Automatic Virtual Environment) and a real field environment (city center of Chemnitz, Germany) in a between-subject-design concerning presence, and evaluate its impact on the usability and the user experience of a geocaching game. The data of 60 participants was analyzed and shows significantly higher ecological validity for the real field environment but higher values for engagement and negative effects in the virtual field environment. Concerning usability, significant differences were verified between the two environments. All presence factors correlated significantly with usability in the CAVE, but did not correlate in the real-field environment. Concerning user experience, the CAVE showed significantly higher hedonic quality values, whereas the real field environment had higher pragmatic quality values. In both conditions presence and user experience factors were partly correlated. Our results indicate that virtual environments can be an alternative to real environments for user experience studies, when a high presence is achieved. virtual environments are an alternative for user experience studies.Ratings for usability are correlated with presence in VR.Ratings for user experience are correlated with presence in VR.

Virtual-Reality-Based Simulation of NC Programs for Milling Machines

This paper addresses Virtual Reality-assisted pre-testing of NC programs and describes the benefits of testing them with respect to processing on the NC control unit. Thereby collisions of machine axes can be recognized, downtimes can be minimized and costs arising from faulty NC programs can be cut. Newly-engineered visualization of material removal in real-time-capable VR systems facilitates an even more realistic simulation of the production process, and thereby enables even those users who are not specialists in the field to quickly comprehend the ever more complex processes involved, and thus to recognize potential errors more effectively. By using the hardware in loop-coupling between a real NC control unit and a virtual machine model, errors caused by the NC control unit itself can be recognized.

Fields of Application of Coupling a Real NC Control Unit With Virtual Reality Technology

This paper presents an approach on how to combine the advantages of both, the integration of a real NC control unit in the NC simulation as well as the visualization using the Virtual Reality (VR) technology. As a first step it will be described how to establish an effective coupling between a real NC control unit and a virtual machine model. Therefore the setup of the VR simulation environment, like the preparation of the virtual machine model with its kinematic structure, will be presented. Based on this coupling, different fields of application such as detection and prevention of collisions between the machine axes as well as the material removal at the work piece will be described. Finally the use of this coupling for training purposes will be presented.Copyright

[POSTER] Industrial Augmented Reality: Transferring a Numerical Control Connected Augmented Realty System from Marketing to Maintenance

Connecting third party systems like machine controls and product data management systems with Augmented Reality (AR) support applications is crucial for their industrial success. We present a marketing use case of a Virtual Press demonstrator where the connection to a machine control was successfully implemented. The realization of this application utilized the AR framework ARViewer that is introduced in this paper. Subsequent, an outlook is given how this framework can be extended using three examples of AR maintenance applications.

Wie sieht die Intralogistik der Zukunft aus

Kurzfassung Dieser Beitrag stellt ein neues Konzept zur Kommissionierung von Waren im Lager vor. Im Fokus steht dabei eine ganzheitliche Herangehensweise, was zum einen den automatisierten Transport durch Fahrerlose Transportfahrzeuge verbessert, zum anderen aber auch den Menschen einbezieht und bei seiner Arbeit aktiv unterstützt.

Real NC Control Unit and Virtual Machine to Improve Operator Training

This paper describes a coupling between a real NC control unit and a virtual machine and its application potentials for vocational training. First the Hardware-in-the-Loop coupling, including the setup of the machine model, the connection itself and the realized material removal process, is described. Based on that, possible application scenarios for vocational training are discussed. In addition expert opinions about the usability of the NC-VR setup and possible obstacles are presented.

Optimierung des Energiebedarfs der CNC-gesteuerten Bearbeitung

Kurzfassung Der Energieverbrauch bei der spanenden Herstellung eines Werkstücks wird von einer Vielzahl von Größen beeinflusst. Der vorliegende Beitrag greift die Bereiche Prozessplanung, Regelungs- und Stelltechnik sowie Konfiguration der CNC-Steuerung und Anpassung des NC-Programms heraus. Mittels virtueller Prototypen und geeigneter Simulationen kann bereits im Vorfeld der realen Fertigung eine energetische Bewertung des geplanten Bearbeitungsprozesses erfolgen und das NC-Programm optimiert werden.

Anforderungen an den Virtuellen Zwilling aus Nutzersicht

Kurzfassung Dieser Beitrag beschreibt eine durchgeführte Studie zur Ermittlung der Anforderungen und Bedenken bzgl. Virtueller Zwillinge aus Nutzersicht. Die Studie dient als wichtige Grundlage für eine gelungene Implementierung und Akzeptanz Virtueller Zwillinge im Rahmen des digitalen Wandels.

Presence and User Experience in a Virtual Environment under the Influence of Ethanol: An Explorative Study

Virtual Reality (VR) is used for a variety of applications ranging from entertainment to psychological medicine. VR has been demonstrated to influence higher order cognitive functions and cortical plasticity, with implications on phobia and stroke treatment. An integral part for successful VR is a high sense of presence – a feeling of ‘being there’ in the virtual scenario. The underlying cognitive and perceptive functions causing presence in VR scenarios are however not completely known. It is evident that the brain function is influenced by drugs, such as ethanol, potentially confounding cortical plasticity, also in VR. As ethanol is ubiquitous and forms part of daily life, understanding the effects of ethanol on presence and user experience, the attitudes and emotions about using VR applications, is important. This exploratory study aims at contributing towards an understanding of how low-dose ethanol intake influences presence, user experience and their relationship in a validated VR context. It was found that low-level ethanol consumption did influence presence and user experience, but on a minimal level. In contrast, correlations between presence and user experience were strongly influenced by low-dose ethanol. Ethanol consumption may consequently alter cognitive and perceptive functions related to the connections between presence and user experience.

Prozessübergreifende Fertigung von metallischen Hochleistungsbauteilen

Kurzfassung Dieser Beitrag stellt das Konzept des HEIGHT-Projekts vor, die Entwicklung einer neuartigen Prozesskette für die Fertigung von metallischen Hochleistungsbauteilen, inklusive dazugehörigem Virtuellen Zwilling. Ziel ist es, eine kundenindividuellere Fertigung zu ermöglichen und mittels durchgängiger Prozessauslegung die gesamte Fertigung zu optimieren.