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AssigneeABB Technology AG
InventorsWolfgang Wimmer, Hubert Kirrmann, Hermann Spiess, Stefan Ramseier, Allen Notter, Martin Israel
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Exemplary embodiments increase reliability of communication over a non-deterministic communication channel, in electric power systems. A communication channel is monitored based on regular network traffic, by evaluating messages or data packets carrying real-time operational data as a payload. A permanent determination of a channel quality, including appropriate alarming in case the channel quality is found insufficient, is based on an evaluation, at a receiving node, of data packets continually transmitted by a sending node. These continually or repeatedly transmitted data packets can include identical payloads reflecting current states rather than state changes as operational data.
A method of communicating between a first communication node at a first site and a second communication node at a second site, wherein the first communication node is adapted to receive a protection command as an input signal from a relay connected to the first node, the method comprising:
Dependencies are inferred from the claim text.