scholarly journals Programming of Industrial Robots Using Virtual Reality and Digital Twins

2020 ◽  
Vol 10 (2) ◽  
pp. 486 ◽  
Author(s):  
Andrzej Burghardt ◽  
Dariusz Szybicki ◽  
Piotr Gierlak ◽  
Krzysztof Kurc ◽  
Paulina Pietruś ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Point Of View ◽  
Industrial Robots ◽  
Virtual Reality System ◽  
Digital Twins ◽  
Human Movements ◽  
Cad Models ◽  
Real Robot ◽  
Ceramic Casting

The article presents a method of programming robots using virtual reality and digital twins. The virtual environment is a digital twin of a robotic station, built based on CAD models of existing station elements. The virtual reality system is used to record human movements in a virtual environment, which are then reproduced by a real robot. The method developed is dedicated mainly to such situations in which it is necessary for the robot to reproduce the movements of a human performing a process that is complicated from the point of view of robotization. An example of using the method for programming a robot implementing the process of cleaning ceramic casting moulds is presented.

scholarly journals Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 397
Author(s):  
Qimeng Zhang ◽  
Ji-Su Ban ◽  
Mingyu Kim ◽  
Hae Won Byun ◽  
Chang-Hun Kim
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Mobile Device ◽  
User Satisfaction ◽  
Virtual World ◽  
User Study ◽  
Visual Display ◽  
Point Of View ◽  
Head Mounted Display ◽  
And Behavior

We propose a low-asymmetry interface to improve the presence of non-head-mounted-display (non-HMD) users in shared virtual reality (VR) experiences with HMD users. The low-asymmetry interface ensures that the HMD and non-HMD users’ perception of the VR environment is almost similar. That is, the point-of-view asymmetry and behavior asymmetry between HMD and non-HMD users are reduced. Our system comprises a portable mobile device as a visual display to provide a changing PoV for the non-HMD user and a walking simulator as an in-place walking detection sensor to enable the same level of realistic and unrestricted physical-walking-based locomotion for all users. Because this allows non-HMD users to experience the same level of visualization and free movement as HMD users, both of them can engage as the main actors in movement scenarios. Our user study revealed that the low-asymmetry interface enables non-HMD users to feel a presence similar to that of the HMD users when performing equivalent locomotion tasks in a virtual environment. Furthermore, our system can enable one HMD user and multiple non-HMD users to participate together in a virtual world; moreover, our experiments show that the non-HMD user satisfaction increases with the number of non-HMD participants owing to increased presence and enjoyment.

A Virtual Reality System for Pre-Planning of Robotic-Assisted Prostate Biopsy

2015 ◽  
Vol 772 ◽  
pp. 585-590
Author(s):  
Florin Gîrbacia ◽  
Silviu Butnariu ◽  
Daniel Voinea ◽  
Bogdan Tzolea ◽  
Teodora Gîrbacia ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual Reality System ◽  
Surgical Robots ◽  
Robotic Assisted ◽  
Biopsy Procedure ◽  
Planning Software ◽  
Operative Planning ◽  
Serial Robot ◽  
Needle Trajectory

Surgical robots for biopsy procedure require pre-operative planning of trajectories prior to be used for needle guiding procedures. Virtual Reality (VR) technologies allow to simulate robotic biopsy procedure and to generate accurate needle trajectories that avoid vital organs. The paper presents a serial robot which can be used for biopsy procedure and a needle trajectory planning software based on VR technologies. A virtual environment has been modelled and simulations for robotic-assisted biopsy of the prostate have been performed.

Natural Locomotion Based on Foot-Mounted Inertial Sensors in a Wireless Virtual Reality System

2015 ◽  
Vol 24 (4) ◽  
pp. 298-321 ◽  
Author(s):  
Ernesto de la Rubia ◽  
Antonio Diaz-Estrella
Keyword(s):  
Virtual Reality ◽  
Gait Cycle ◽  
Inertial Sensors ◽  
Low Cost ◽  
Point Of View ◽  
Handheld Devices ◽  
Preliminary Evaluation ◽  
Virtual Reality System ◽  
Object Searching

Virtual reality has become a promising field in recent decades, and its potential now seems clearer than ever. With the development of handheld devices and wireless technologies, interest in virtual reality is also increasing. Therefore, there is an accompanying interest in inertial sensors, which can provide such advantages as small size and low cost. Such sensors can also operate wirelessly and be used in an increasing number of interactive applications. An example related to virtual reality is the ability to move naturally through virtual environments. This is the objective of the real-walking navigation technique, for which a number of advantages have previously been reported in terms of presence, object searching, and collision, among other concerns. In this article, we address the use of foot-mounted inertial sensors to achieve real-walking navigation in a wireless virtual reality system. First, an overall description of the problem is presented. Then, specific difficulties are identified, and a corresponding technique is proposed to overcome each: tracking of foot movements; determination of the user’s position; percentage estimation of the gait cycle, including oscillating movements of the head; stabilization of the velocity of the point of view; and synchronization of head and body yaw angles. Finally, a preliminary evaluation of the system is conducted in which data and comments from participants were collected.

Automatic disassembly navigation for accurate virtual assembly path planning

2014 ◽  
Vol 34 (3) ◽  
pp. 244-254 ◽  
Author(s):  
Wanbin Pan ◽  
Yigang Wang ◽  
Peng Du
Keyword(s):  
Virtual Reality ◽  
Path Planning ◽  
Virtual Environment ◽  
Design Methodology ◽  
Virtual Assembly ◽  
New Method ◽  
Virtual Reality System ◽  
New Approach ◽  
Content Type ◽  
Human Interactions

Purpose – The purpose of this paper is to develop an automatic disassembly navigation approach for human interactions in the virtual environment to achieve accurate and effective virtual assembly path planning (VAPP). Design/methodology/approach – First, to avoid the error-prone human interactions, a constraint-based disassembly method is presented. Second, to automatically provide the next operable part(s), a disassembly navigation mechanism is adopted. Finally, the accurate assembly path planning can be obtained effectively and automatically by inversing the ordered accurate disassembly paths, which are obtained interactively in the virtual environment aided with the disassembly navigation matrix. Findings – The applications present that our approach can effectively avoid the error-prone interactive results and generate accurate and effective VAPP. Research limitations/implications – There are several works that could be conducted to make our approach more general in the future: to further study the basic disassembly direction deducing rules to make the process of determining disassembly direction totally automatic, to consider the hierarchy of the parts in virtual reality system and to consider the space for assembly/disassembly tools or operators. Originality/value – The approach has the following characteristics: a new approach to avoid the error-prone human interactions for accurate assembly path planning obtaining, a new constraint deducing method for determining the disassembly semantics automatically or semi-automatically is put forward and a new method for automatically identifying operable parts in VAPP is set forward.

The virtual railway station

2016 ◽  
Vol 22 (2) ◽  
pp. 116-126 ◽  
Author(s):  
Veronika Egger (is-design GmbH)
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Real World ◽  
Information Design ◽  
Point Of View ◽  
Immersive Virtual Environment ◽  
Real World Application ◽  
Partially Sighted ◽  
Central Station

In a fully immersive virtual environment that modeled the new Vienna Central Station this research project investigated to what extent virtual reality might serve to evaluate the quality of orientation signage. From an information design point of view, two questions were particularly relevant: (1) How applicable are results from a virtual environment to the real world? and (2) Is this type of virtual environment suitable for testing with elderly people and people who are partially sighted? The article describes evaluation methods, limits and strengths of the virtual environment and lessons for real world application of results.

scholarly journals Virtual Reality: Developing a VR space for Academic activities

2014 ◽  
Vol II-5 ◽  
pp. 197-201 ◽  
Author(s):  
D. Kaimaris ◽  
E. Stylianidis ◽  
N. Karanikolas
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Spatial Planning ◽  
Course Design ◽  
Point Of View ◽  
Virtual School ◽  
Professional Life ◽  
Academic Life ◽  
Academic Activities ◽  
Methods And Techniques

Virtual reality (VR) is extensively used in various applications; in industry, in academia, in business, and is becoming more and more affordable for end users from the financial point of view. At the same time, in academia and higher education more and more applications are developed, like in medicine, engineering, etc. and students are inquiring to be well-prepared for their professional life after their educational life cycle. Moreover, VR is providing the benefits having the possibility to improve skills but also to understand space as well. This paper presents the methodology used during a course, namely "Geoinformatics applications" at the School of Spatial Planning and Development (Eng.), Aristotle University of Thessaloniki, to create a virtual School space. The course design focuses on the methods and techniques to be used in order to develop the virtual environment. In addition the project aspires to become more and more effective for the students and provide a real virtual environment with useful information not only for the students but also for any citizen interested in the academic life at the School.

Research on Virtual Reality Technology Based the Application System of the Pumping Unit

2012 ◽  
Vol 522 ◽  
pp. 749-752
Author(s):  
Quan Wei Cui ◽  
Wen Lei Sun ◽  
Xiao Jing Wan ◽  
Chun Xiang Wang
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Working Condition ◽  
Reference Value ◽  
Point Of View ◽  
Oil Field ◽  
Virtual Reality Technology ◽  
Application System ◽  
Sense Of Reality ◽  
Pumping Unit

The pumping unit is designed and assembled collaboratively by using virtual reality technology combining with the UG and VAPlatform. A simulation roaming system of the field scene is established which uses Nvision platform and 3Dmax. The system is based on the real working condition to enhance the sense of reality, uses interactive roaming mode, observes the objects in the virtual environment from any point of view, and reproduces the working state of the pumping unit in the oil field, which provides reference value for the complex mechanical production.

scholarly journals Design and Software of a Station with a Collaborative Robot with the Use of VRDesign and Software of a Station with a Collaborative Robot with the Use of VR

2021 ◽  
Vol 25 (2) ◽  
pp. 23-30
Author(s):  
Paulina Pietruś ◽  
Magdalena Muszyńska
Keyword(s):  
Virtual Reality ◽  
User Interface ◽  
Graphical User Interface ◽  
Industrial Robots ◽  
Human Being ◽  
Modern Approach ◽  
Work Area ◽  
Cad Models ◽  
Collaborative Robot ◽  
Made In

Collaborative industrial robots meet the modern approach to robotization. They enable cooperation with a human being in the robot’s work area. As part of the article, it was decided to design and build a robotic station enabling the implementation of human–machine cooperation. CAD models of the station were created using the Autodesk Inventor software. The station design was made in the RobotStudio environment with the use of the IRB 14000 YuMi robot. The software is based on smart components and Rapid language code. A graphical user interface was created, interactive with a human in virtual reality. The software was verified with the participation of the operator in virtual reality.

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