Detection of fast poll responses in a TWACS inbound receiver
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United States of America Patent
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Jun 4, 2013
Grant Date -
Nov 4, 2010
app pub date -
Aug 9, 2007
filing date -
Aug 11, 2006
priority date (Note) -
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Abstract
A method for use in a power line communication systems for an electrical distribution system (1) to quickly and accurately poll electrical meters (6) installed at user facilities to determine if an outage has occurred at a facility. An outbound communications message is transmitted to the meter at the facility requesting a short response consisting of a bit pattern that is either partially or completely known to the receiver. Any perceived response from the meter is then processed to ascertain whether or not the meter actually transmitted a message. Receipt of a message indicates that an outage has not occurred at that site, while an indication the message was not received indicates an outage has likely occurred. In processing the received message, two types of errors can potentially occur; i.e., a false positive or a false negative.
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