Non-disruptive large-scale component updates for real-time controllers

Wahler, Michael; Richter, Stefan; Kumar, Sumit; Manuel, Oriol

doi:10.1109/icdew.2011.5767631

Cited by 18 publications

(21 citation statements)

References 9 publications

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“…Static schedules. Schedules and configurations are static and execute the current configuration [27]. New schedules and configurations can however be created in the background.…”

Section: Conceptsmentioning

confidence: 99%

Reconciling flexibility and robustness in industrial automation systems, and living happily ever after

Wahler

Manuel

Ferranti

et al. 2013

2013 IEEE 18th Conference on Emerging Technologies &Amp; Factory Automation (ETFA)

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Many automation systems are used in safety-critical environments, in which any nondeterministic timing behavior of the software may damage equipment or even threaten the health of people. Making software behave deterministically usually relies on hardware-bound optimizations, leaving little room for abstraction layers. This, however, has a negative impact on several important software qualities such as portability, maintainability, or scalability. As a consequence, it becomes difficult to use the same software across different platforms, scale it up or down to changing requirements, or reuse code across different families of products.In this article, we show how both flexibility and robustness can be achieved for real-time automation software. To this end, we present the mechanisms behind the component-based execution framework FASA. This framework offers a platform abstraction mechanism, which allows developers to port it to various platforms in a welldefined manner while maintaining its deterministic qualities. Furthermore, FASA supports runtime reconfigurations and software updates while executing real-time applications without any disruptions. For each of these concepts, we detail our reference implementation.

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“…Static schedules. Schedules and configurations are static and execute the current configuration [27]. New schedules and configurations can however be created in the background.…”

Section: Conceptsmentioning

confidence: 99%

Reconciling flexibility and robustness in industrial automation systems, and living happily ever after

Wahler

Manuel

Ferranti

et al. 2013

2013 IEEE 18th Conference on Emerging Technologies &Amp; Factory Automation (ETFA)

Self Cite

View full text Add to dashboard Cite

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“…As claimed by Wahler et al [39], software within safety-critical systems has to usually be certified according to safety standards. A high safety confidence level is also required for the software development and supporting tools.…”

Section: Security Updatesmentioning

confidence: 99%

“…As stated by Wahler et al [39], the biggest challenge for updating the software of real-time systems is that they often need to be certified according to standards such as the IEC 61508 [40]. If the software of such system is updated, the system as a whole must be re-certified before it can be used in the field.…”

Section: Analysis Of Existing Systemsmentioning

confidence: 99%

Analysis of existing dynamic software updating techniques for safe and secure industrial control systems

Mugarza¹,

Parra²,

Jacob³

2018

Int. J. SAFE

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Higher interconnectivity among devices, machines, the cloud and humans is envisioned in the actual trend of automation, also known as Industrial Internet of Things (IIoT). These industrial control systems, which may require high availability and/or safety related capabilities, are no longer isolated from the corporate environment or Internet. Software updates will be needed during the product life cycle, due to the long service life, the increasing number of security related vulnerabilities discovered on these industrial control systems and the high interconnectivity desired in IIoT. These updates aim at fixing all these security weaknesses, bugs and vulnerabilities that could appear, while the required safety integrity levels are ensured. Security-related concerns have just been addressed by the safety engineering community, because of the increasing number of cyber-attacks against safety-critical systems, such as Stuxnet. Moreover, system shut-downs caused by software updates could not be plausible when high availability is required. Typically, in order to perform the software update, the whole industrial process or the production is halted, so that the software upgrade is safely applied. However, this scenario might not be applied in critical infrastructures, such as nuclear or hydroelectrical power plants, where these production and service interruptions are not acceptable from the business and service point of view. This article presents an analysis of existing dynamic software updating techniques, which may be applied for safe and secure industrial control systems. These techniques aim at updating the running code, without the need of a halt and restart, increasing the availability of the industrial system.

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“…Richter, Sumit Kumar, Manuel Oriol [26] Michael gave the talk. The primary motivation for this work is that many mission-critical systems that need to be continuously available have real-time constraints.…”

Section: Non-disruptive Large-scale Component Updates For Real-time Cmentioning

confidence: 99%

Report on the third workshop on hot topics in software upgrades (HotSWUp'11)

Hayden

Neamtiu

2012

SIGOPS Oper. Syst. Rev.

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The Third Workshop on Hot Topics in Software Upgrades (HotSWUp'11) was held on April 16, 2011 in Hannover, Germany. The workshop was co-located with ICDE 2011. The goal of HotSWUp is to identify, through interdisciplinary collaboration, cutting-edge research ideas for implementing software upgrades.The workshop combined presentations of peer-reviewed research papers with a keynote speech on the practical issues related to performing large-scale upgrades. The audience included researchers and practitioners from academia, industry, and government. In addition to the technical presentations, the program allowed ample time for discussions, which were driven by debate questions provided in advance by the presenters.HotSWUp provides a premier forum for discussing problems that are often considered niche topics in the established research communities. For example, the technical discussions at HotSWUp'11 covered dynamic software updates, package management tools, database schema upgrades, upgrades of systems with real-time constraints, upgrading satellite software, and highlighted many synergies among these and other topics.

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Non-disruptive large-scale component updates for real-time controllers

Cited by 18 publications

References 9 publications

Reconciling flexibility and robustness in industrial automation systems, and living happily ever after

Reconciling flexibility and robustness in industrial automation systems, and living happily ever after

Analysis of existing dynamic software updating techniques for safe and secure industrial control systems

Report on the third workshop on hot topics in software upgrades (HotSWUp'11)

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