METHOD AND DEVICE FOR ENERGY-SAVING EXTERNAL SYNCHRONIZATION OF CLOCKS IN A DISTRIBUTED REAL-TIME COMPUTER SYSTEM
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United States of America Patent
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Dec 23, 2015
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Dec 23, 2014
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Abstract
The present invention relates to a method for synchronizing the clocks of the node computers of a distributed real-time system with an external time reference, such as GPS time, requiring minimal energy expenditure, and for structuring a sparse time-base. By considering the influence of changing physical environmental parameters on the period of oscillation of local oscillators, the holdover interval, according to which an external synchronization must occur, can be dynamically determined and the frequency of the energy-intensive external synchronization processes can be significantly reduced.
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