NDLI: Controller area network node reliability assessment based on observable node information

Content Provider	Springer Nature Link
Author	Zhang, Lei ming Tang, Long hao Lei, Yong
Copyright Year	2017
Abstract	Controller area network (CAN) based fieldbus technologies have been widely used in networked manufacturing systems. As the information channel of the system, the reliability of the network is crucial to the system throughput, product quality, and work crew safety. However, due to the inaccessibility of the nodes’ internal states, direct assessment of the reliability of CAN nodes using the nodes’ internal error counters is infeasible. In this paper, a novel CAN node reliability assessment method, which uses node’s time to bus-off as the reliability measure, is proposed. The method estimates the transmit error counter (TEC) of any node in the network based on the network error log and the information provided by the observable nodes whose error counters are accessible. First, a node TEC estimation model is established based on segmented Markov chains. It considers the sparseness of the distribution of the CAN network errors. Second, by learning the differences between the model estimates and the actual values from the observable node, a Bayesian network is developed for the estimation updating mechanism of the observable nodes. Then, this estimation updating mechanism is transferred to general CAN nodes with no TEC value accessibility to update the TEC estimation. Finally, a node reliability assessment method is developed to predict the time to reach bus-off state of the nodes. Case studies are carried out to demonstrate the effectiveness of the proposed methodology. Experimental results show that the estimates using the proposed model agree well with actual observations.
Starting Page	615
Ending Page	626
Page Count	12
File Format	PDF
ISSN	20959184
Journal	Journal of Zhejiang University SCIENCE C
Volume Number	18
Issue Number	5
e-ISSN	20959230
Language	English
Publisher	Zhejiang University Press
Publisher Date	2017-05-27
Publisher Place	Hangzhou
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Controller area network (CAN) Transmit error counter (TEC) TEC value estimation Bayesian network Bus-off hitting time Computer Science Electrical Engineering Computer Hardware Computer Systems Organization and Communication Networks Electronics and Microelectronics, Instrumentation Communications Engineering, Networks
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications Electrical and Electronic Engineering Hardware and Architecture

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