Talks and Poster Presentations (with Proceedings-Entry):

H. Kopetz:
"Why do we need a Sparse Global Time-Base in Dependable Real-time Systems?";
Talk: 2007 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication, Vienna; 2007-10-01 - 2007-10-03; in: "ISPCS Proceedings", (2007), ISBN: 1-4244-1064-9; Paper ID 03 (Session 1/3), 5 pages.

English abstract:
In many high-dependability applications (such as a
fly-by-wire system) triple-modular redundancy (TMR) is
deployed to mask arbitrary failures of any of its
constituent components. A TMR system will only work
properly if the three replicated channels are
synchronized, operate independently and exhibit a
deterministic behavior. Determinism requires that two
inputs that are presented to the three independent
channel at the same instant must be ordered in the same
way by all three channels, i.e., simultaneity must be
resolved consistently at the system level. In order to
resolve this issue of system-wide consistent temporal
ordering of events, a global time base of known
precision-as established by the IEEE 1588 standard-is
of utmost utility. Given such a global time-base of known
precision, one can establish a global sparse time model
that supports the consistent ordering of events.
Index Terms - global time, triple modular
redundancy, sparse time, precision, accuracy, faulttolerance

Created from the Publication Database of the Vienna University of Technology.