Efficient implementation of semaphores in controller area networks

Synchronization of concurrent activities by means of semaphores is widely adopted in industrial distributed systems. This paper presents some mechanisms which facilitate the efficient implementation of the popular semaphore concept in real-time networks based on the controller area network medium ac...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 1999-04, Vol.46 (2), p.417-428
Main Authors: Cena, G., Valenzano, A.
Format: Article
Language:English
Subjects:
Access control
Access methods and protocols, osi model
Applied sciences
Automatic control
Communication system control
Control systems
Controller area network
Electrical equipment industry
Exact sciences and technology
Field buses
Industrial control
Industrial electronics
Intelligent actuators
Intelligent networks
Intelligent sensors
Management
Manufacturing automation
Networks
Real time
Synchronism
Synchronization
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
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Summary:Synchronization of concurrent activities by means of semaphores is widely adopted in industrial distributed systems. This paper presents some mechanisms which facilitate the efficient implementation of the popular semaphore concept in real-time networks based on the controller area network medium access technique. The advantages obtained by adopting the proposed solution are twofold. First, better performance can be obtained because most of the semaphore management mechanisms are moved from the application to the physical and data-link communication layers. Second, a fully distributed management scheme is implemented, and there is no need to place the semaphore control structures on a particular node in the network.
ISSN:0278-0046
1557-9948
DOI:10.1109/41.753781