Title :
Improved fault tolerant broadcasts in CAN
Author :
Pinho, Luís Miguel ; Vasques, Francisco
Author_Institution :
ISEP, Polytech. Inst. of Porto, Portugal
Abstract :
It is generally considered that the controller area network (CAN) guarantees atomic broadcast properties through its extensive error detection and signalling mechanisms. However, it is known that these mechanisms may fail, and messages can be delivered in duplicate by some receivers or delivered only by a subset of the receivers. This misbehaviour may be disastrous if the CAN network is used to support replicated applications. In order to prevent such inconsistencies, a set of atomic broadcast protocols is proposed, taking advantage of CAN synchronous properties to minimise its run-time overhead. The paper presents such set of protocols, and demonstrates how they can be used for the development of distributed real-time applications.
Keywords :
controller area networks; fault tolerance; field buses; protocols; real-time systems; CAN; atomic broadcast properties; atomic broadcast protocols; controller area network; distributed real-time applications; error detection; fault tolerant broadcasts; replicated applications; signalling mechanisms; Access protocols; Broadcasting; Control systems; Electronic mail; Fault tolerance; Intelligent networks; Media Access Protocol; Real time systems; Telecommunication network reliability; Transmitters;
Conference_Titel :
Emerging Technologies and Factory Automation, 2001. Proceedings. 2001 8th IEEE International Conference on
Conference_Location :
Antibes-Juan les Pins, France
Print_ISBN :
0-7803-7241-7
DOI :
10.1109/ETFA.2001.996383