LATENCY DETERMINATION IN SUBSTATION NETWORKS
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Aug 10, 2012
filing date -
Aug 10, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present disclosure relates to latency determination in a substation network. One aspect relates to a method being performed in a first electronic device of the substation network. Another aspect relates to a method being performed in a relay device of the substation network. Yet another aspect relates to a method being performed in a second electronic device of the substation network. Latency is determined using a precision time protocol, such as the IEEE 1588v2 protocol. However, no GPS based master clock timing is required. Instead at least one data value is included as payload in a message of the precision time protocol. The relay device adds a residence time duration and a link latency to the message. The message is then forwarded to the second electronic device. A corresponding first electronic device, relay device, and second electronic device as well as a computer program and computer program product are also provided.
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