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See detailEvent Notification in CAN-based Sensor Networks
Bloom, Gedare; Cena, Gianluca; Cibrario Bertolotti, Ivan et al

in IEEE Transactions on Industrial Informatics (2019), 15(10), 5613-5625

Preventive and reactive maintenance require the collection of an ever-increasing amount of information from industrial plants and other complex systems, like those based on robotized cells, a need that ... [more ▼]

Preventive and reactive maintenance require the collection of an ever-increasing amount of information from industrial plants and other complex systems, like those based on robotized cells, a need that can be fulfilled by means of a suitable event notification mechanism. At the same time, timing and delivery reliability requirements in those scenarios are typically less demanding than in other cases, thus enabling the adoption of best-effort notification approaches. This paper presents, evaluates, and compares some of those approaches, based on either standard CAN messaging or a recently proposed protocol extension called CAN XR. In the second case, the combined use of Bloom filters is also envisaged to increase flexibility. Results show that the latter approaches are advantageous in a range of event generation rates and network topologies of practical relevance. [less ▲]

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See detailCAN With eXtensible In-Frame Reply: Protocol Definition and Prototype Implementation
Cena, Gianluca; Cibrario Bertolotti, Ivan; Hu, Tingting UL et al

in IEEE Transactions on Industrial Informatics (2017), 13(5), 2436-2446

Controller area network (CAN) has been the de facto standard in the automotive industry for the past two decades. Recently, CAN with flexible data-rate (CAN FD) has been standardized, which achieves ... [more ▼]

Controller area network (CAN) has been the de facto standard in the automotive industry for the past two decades. Recently, CAN with flexible data-rate (CAN FD) has been standardized, which achieves noticeably higher throughput. Further improvements are still possible for CAN, by exploiting its peculiar physical layer to carry out distributed operations among network nodes, implemented as atomic transactions mapped on quasi-conventional frame exchanges. In this paper, a proposal is made for an extension to the CAN protocol, termed CAN with eXtensible in-frame Reply (CAN XR), which enables upper protocol layers to define new custom services devoted to, e.g., network management, application-specific functions, and high-efficiency data transfer. The key point is that CAN XR retains full backward compatibility with CAN, therefore, there is no need to change the protocol specification once again. [less ▲]

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See detailSecurity Analysis of a Single Sign-On Mechanism for Distributed Computer Networks
Wang, Guilin; Yu, Jiangshan UL; Xie, Qi

in IEEE Transactions on Industrial Informatics (2013), 9(1), 294--302

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