Are Cloud Services Aware of Time? An Experimental Analysis oriented to Industry 4.0

Rinaldi, Stefano; Bellagente, Paolo; Ferrari, Paolo; Flammini, A.; Sisinni, Emiliano

doi:10.1109/ispcs.2019.8886642

Cited by 6 publications

(4 citation statements)

References 23 publications

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“…Rinaldi et al . [ 21 ] verified this by using the NTP protocol on different VMs. The impact of virtualization on time accuracy was analyzed under stressful network conditions in Ref.…”

Section: Related Workmentioning

confidence: 93%

“…In the VM system, the guest shares the physical clock device through clock virtualization and maintains a relatively independent time concept within each guest VM [20] . Virtual machines (VMs) generally use the same clock synchronization mechanism as used in physical machines.…”

Section: Related Workmentioning

confidence: 99%

“…2) The virtual clock measurement model VMM provides two kinds of virtual clock devices for guest VMs based on physical clock devices [20] : virtual clock_source and virtual clock_event, as shown in Fig. 4.…”

Section: Clock Measurement Model 1) the Physical Clock Measurement Modelmentioning

confidence: 99%

See 2 more Smart Citations

Research on Global Clock Synchronization Mechanism in Software‐Defined Control Architecture

Lyu

DAI²,

MA³

et al. 2022

Chinese J of Electronics

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Adopt software‐definition technology to decouple the functional components of the industrial control system (ICS) in a service‐oriented and distributed form is an important way for the industrial Internet of things to integrate information technology, communication technology, and operation technology. Therefore, this paper presents the concept of software‐defined control architecture and describes the time consistency requirements under the paradigm shift of ICS architecture. By analyzing the physical clock and virtual clock mechanism models, the global clock synchronization space is logically divided into the physical and virtual clock synchronization domains, and a formal description of the global clock synchronization space is proposed. According to the fundamental analysis of the clock state model, the physical clock linear filtering synchronization model is derived, and a distributed observation fusion filtering model is constructed by considering the two observation modes of the virtual clock to realize the time synchronization of the global clock space by way of timestamp layer‐by‐layer transfer and fusion estimation. Finally, the simulation results show that the proposed model can significantly improve the accuracy and stability of clock synchronization.

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“…Rinaldi et al . [ 21 ] verified this by using the NTP protocol on different VMs. The impact of virtualization on time accuracy was analyzed under stressful network conditions in Ref.…”

Section: Related Workmentioning

confidence: 93%

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Research on Global Clock Synchronization Mechanism in Software‐Defined Control Architecture

Lyu

DAI²,

MA³

et al. 2022

Chinese J of Electronics

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show abstract

“…Edge computation is considered as speed-up over cloud computation, which could be of advantage in assessment based on street level data for on-edge traffic congestion [51]. Cloud computations on the other hand have proven abilities to obtain a 'time synchronization accuracy below 0.1 ms' in estimating the accuracy of remote virtual machines for accurate time synchronisation in the Industrial IoT [69].…”

Section: Time-stamped Datamentioning

confidence: 99%

New and emerging forms of data and technologies: literature and bibliometric review

Radanliev

Roure

2022

Multimed Tools Appl

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With the increased digitalisation of our society, new and emerging forms of data present new values and opportunities for improved data driven multimedia services, or even new solutions for managing future global pandemics (i.e., Disease X). This article conducts a literature review and bibliometric analysis of existing research records on new and emerging forms of multimedia data. The literature review engages with qualitative search of the most prominent journal and conference publications on this topic. The bibliometric analysis engages with statistical software (i.e. R) analysis of Web of Science data records. The results are somewhat unexpected. Despite the special relationship between the US and the UK, there is not much evidence of collaboration in research on this topic. Similarly, despite the negative media publicity on the current relationship between the US and China (and the US sanctions on China), the research on this topic seems to be growing strong. However, it would be interesting to repeat this exercise after a few years and compare the results. It is possible that the effect of the current US sanctions on China has not taken its full effect yet.

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Timing Accuracy for Internet of Things and Industry 4.0 Applications: Technologies and Research Trends

Sharma,

Yadav,

Vattikonda

et al. 2023

Lecture Notes in Mechanical Engineering

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Are Cloud Services Aware of Time? An Experimental Analysis oriented to Industry 4.0

Cited by 6 publications

References 23 publications

Research on Global Clock Synchronization Mechanism in Software‐Defined Control Architecture

Research on Global Clock Synchronization Mechanism in Software‐Defined Control Architecture

New and emerging forms of data and technologies: literature and bibliometric review

Timing Accuracy for Internet of Things and Industry 4.0 Applications: Technologies and Research Trends

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