Fieldbus virtualization for Integrated Modular Avionics

Kim, Jong Seo; Lee, Sang-Hun; Jin, Hyun-Wook

doi:10.1109/etfa.2011.6059151

Cited by 8 publications

(4 citation statements)

References 13 publications

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“…The OS-based virtualization shows the performance of our design suggested in Section 3. To measure the CAN virtualization overheads in hypervisor-based virtualization, we used the implementation suggested by Kim et al [21]. It is to be noted that we applied the hypervisor-based virtualization to only one node, while measuring RTT on the other node that is not virtualized because the hypervisor-based virtualization does not provide an accurate timer to guest domains.…”

Section: Resultsmentioning

confidence: 99%

“…The proposed scheme does not require any modifications of control applications and protocol stacks. There were also studies to virtualize CAN, but these were hardware-level approaches [20] or targeted the hypervisor-based virtualization [21]. We also suggest adjusting the phase offsets of virtual controllers and their tasks to minimize the end-to-end delay.…”

Section: Introductionmentioning

confidence: 99%

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Virtualization of Industrial Real-Time Networks for Containerized Controllers

Lee

Kim²,

Seok

et al. 2019

Sensors

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The virtualization technology has a great potential to improve the manageability and scalability of industrial control systems, as it can host and consolidate computing resources very efficiently. There accordingly have been efforts to utilize the virtualization technology for industrial control systems, but the research for virtualization of traditional industrial real-time networks, such as Controller Area Network (CAN), has been done in a very limited scope. Those traditional fieldbuses have distinguished characteristics from well-studied Ethernet-based networks; thus, it is necessary to study how to support their inherent functions transparently and how to guarantee Quality-of-Service (QoS) in virtualized environments. In this paper, we suggest a lightweight CAN virtualization technology for virtual controllers to tackle both functionality and QoS issues. We particularly target the virtual controllers that are containerized with an operating-system(OS)-based virtualization technology. In the functionality aspect, our virtualization technology provides virtual CAN interfaces and virtual CAN buses at the device driver level. In the QoS perspective, we provide a hierarchical real-time scheduler and a simulator, which enable the adjustment of phase offsets of virtual controllers and tasks. The experiment results show that our CAN virtualization has lower overheads than an existing approach up to 20%. Moreover, we show that the worst-case end-to-end delay could be reduced up to 78.7% by adjusting the phase offsets of virtual controllers and tasks.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Virtualization of Industrial Real-Time Networks for Containerized Controllers

Lee

Kim²,

Seok

et al. 2019

Sensors

Self Cite

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“…A software-based approach for CAN controller virtualization for integrated modular electronics has been presented in [7]. However, the paper does not present CPU overheads and measures message latencies only on an idle system.…”

Section: Related Workmentioning

confidence: 99%

Spatial and temporal isolation of virtual CAN controllers

et al. 2014

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Virtualization is a key technology to enable the use of multicore processors in automotive embedded systems. For sideby-side execution of mixed-criticality applications that access shared communication infrastructures, a secure and safe virtualization of I/O devices is required, which features a complete spatial and temporal isolation of individual virtual interfaces. We extended existing approaches of hardwarebased CAN virtualization to achieve a full isolation while maintaining the bounded latencies achieved in previous implementations. It is shown, that even a denial-of-service attack towards one virtual controller does not influence the behavior of other virtual controllers. In addition, the scheduling mechanism implemented to guarantee temporal isolation can be configured to provide differentiated service levels for real-time and best effort application domains.

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“…No research has yet been conducted regarding the virtualization of embedded fieldbuses. Previous research for virtualization in transportation CPS has rather dealt with platform virtualization [4] and I/O virtualization [16], [17].…”

Section: Introductionmentioning

confidence: 99%

A network virtualization approach for performance isolation in controller area network (CAN)

Herber

Richter

Wild

et al. 2014

2014 IEEE 19th Real-Time and Embedded Technology and Applications Symposium (RTAS)

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An important trend in automotive CPS is the shift from federated to integrated IT architectures, where multiple functions are consolidated on shared electronic resources instead of distributed electronic control units (ECUs). It is driven by increasing complexity, cost and installation space requirements of todays architectures. However, side-by-side integration of mixedcriticality functions poses new challenges with respect to safety and security.To achieve isolated performance for multiple integrated partitions with different criticalities, an efficient separation within computing and communication resources is required. This paper introduces a network virtualization approach for CAN, which enables concurrence of mixed-criticality communication on a single physical CAN bus through a strict performance isolation. We present a design concept as well as a prototypical implementation. The feasibility of our approach is demonstrated by an analytic evaluation of message latencies and through experimental case studies.

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Fieldbus virtualization for Integrated Modular Avionics

Cited by 8 publications

References 13 publications

Virtualization of Industrial Real-Time Networks for Containerized Controllers

Virtualization of Industrial Real-Time Networks for Containerized Controllers

Spatial and temporal isolation of virtual CAN controllers

A network virtualization approach for performance isolation in controller area network (CAN)

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