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http://dx.doi.org/10.5369/JSST.2007.16.1.052

Fault-tolerant clock synchronization for low-cost networked embedded systems  

Lee, Dong-Ik (School of Electrical Engineering and Computer Science, Kyungpook National University)
Publication Information
Journal of Sensor Science and Technology / v.16, no.1, 2007 , pp. 52-61 More about this Journal
Abstract
Networked embedded systems using the smart device and fieldbus technologies are now found in many industrial fields including process automation and automobiles. However the discrepancy between a node's view of current time and the rest of the system can cause many difficulties in the design and implementation of a networked system. To provide a networked system with a global reference time, the problem of clock synchronization has been intensively studied over the decades. However, many of the existing solutions, which are mainly developed for large scale distributed computer systems, cannot be directly applied to embedded systems. This paper presents a fault-tolerant clock synchronization technique that can be used for a low-cost embedded system using a CAN bus. The effectiveness of the proposed method is demonstrated with a set of microcontrollers and DC motor-based actuators.
Keywords
clock synchronization; networked systems; embedded systems; fault-tolerance; CAN bus;
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Times Cited By KSCI : 1  (Citation Analysis)
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