China
Africa
Explore chapters and articles related to this topic
Building Cloud Networks
Published in John W. Rittinghouse, James F. Ransome, Cloud Computing, 2017
John W. Rittinghouse, James F. Ransome
Key features of openQRM include complete separation of the physical devices and virtual machines from the software (or virtualized serverimages/instances. With openQRM, hardware is seen as a computing resource that can be easily replaced without reconfiguring hardware. Support for different virtualization technologies such as VMware, Xen, KVM, and Linux-VServer vms can be managed transparently via openQRM. It can support P2V (physical to virtual), V2P (virtual to physical), and V2V (virtual to virtual) migration efforts. Because of this flexibility, not only can servers be migrated from physical to virtual environments or virtual to physical environments easily, they can be easily migrated from virtual environment A to virtual environment B.
Revisiting embodiment for brain–computer interfaces
Published in Human–Computer Interaction, 2023
Barış Serim, Michiel Spapé, Giulio Jacucci
Embodiment, the general claim that cognition is deeply dependent upon the physical structure of the body, influenced how HCI researchers theorize about and design user interfaces. For interface design, the concept of embodiment brought about an increased sensitivity toward the physical form of interfaces and the particular body movements performed by users. Researchers utilized the concept to underpin their research on physical gestures, tangible and ubiquitous interfaces and called for involving a more diverse set of physical forms and body gestures than required in traditional GUI interaction (Dourish, 2004; Hornecker & Buur, 2006; Ishii & Ullmer, 1997; Klemmer et al., 2006). Distinctions between physical and virtual, and between tangible and desktop computing have so far remained at the foreground of HCI discussions on embodiment.
Improved multi-fidelity simulation-based optimisation: application in a digital twin shop floor
Published in International Journal of Production Research, 2022
Zhengmin Zhang, Zailin Guan, Yeming Gong, Dan Luo, Lei Yue
Figure 1 shows an implementation framework of the digital twin shop floor based on the IMFSO system. Combined with data acquisition/measurement, the IIoT and other technologies, the digital twin-based manufacturing system can make virtual-actual communication processes faster with more real-time capabilities. The digital twin shop floor framework consists mainly of the physical world, virtual world, twin data server, big data centre and workshop service system (Jiang et al. 2020). The physical world includes the physical factory and the IIoT, which are used to collect, monitor and provide physical historical and real-time data. The virtual factory includes 3D visual modelling and the IMFSO system, which are used for 3D modelling and real-time decision making. The framework uses the twin data server to store massive twin data that are generated in the physical world, virtual world, and workshop service system. After communication and conversion, the data stored in the server can be provisioned for the workshop service system and virtual world as a data foundation.
An approach to develop a digital twin for industry 4.0 systems: manufacturing automation case studies
Published in International Journal of Computer Integrated Manufacturing, 2021
David Guerra-Zubiaga, Vladimir Kuts, Kashif Mahmood, Alex Bondar, Navid Nasajpour-Esfahani, Tauno Otto
PLCSIM Advanced is the bridge in connecting the physical and virtual prototypes. It is a product made by Siemens that creates an OPC server locally for interfacing with a physical PLC and, additionally, creates a virtual PLC to connect to. PLCSIM Advanced makes the connection by creating a virtual ethernet connection where the server relays connections to the physical and virtual hardware. This study used a Siemens S7-1500 series PLC that was connected locally to the computer. After the initial PLC setup, TIA Portal downloads the ladder logic program to the virtual PLC and sets it to run mode. After the connection has been made, Tecnomatix requires the PLC to be defined so that each signal key can be linked appropriately to the right I/O address. Figure 5 depicts the implementation of PLCSIM Advanced to activate the virtual PLC.