Alternative communications paths for data sent over power line carrier
First Claim
1. A method of conveying a first data record comprising information about a first transformer, the first transformer having a primary side adapted to receive power from a first feeder bus at a first voltage and a secondary side adapted to output power at a second voltage that is lower than the first voltage, the first data record moving from a first transmitter on the secondary side of the first transformer to a receiver in data communication with the first feeder bus, the method comprising:
- creating the first data record for output from the first transmitter, the first data record comprising information about the operation of the first transformer;
transmitting the first data record onto a portion of an electrical distribution network using a power line carrier frequency;
receiving at the receiver the first data record from the first transmitter comprising information about the first transformer through a second feeder bus that does not provide power to the primary side of the first transformer;
decoding the first data record to identify that the data record was transmitted from the first transmitter and comprises information about the operation of the first transformer and;
wherein the step of transmitting the first data record onto the portion of the electrical distribution network using the power line carrier frequency comprises transmitting the first data record onto the electrical distribution network between a first network protector on the secondary side of the first transformer and a local distribution network connected to the secondary side of the first transformer such that a data communication path between the first transmitter and the second feeder bus does not include the first network protector.
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Accused Products
Abstract
Extensions to the concept of using a power line carrier to convey a data record from the secondary side of a first transformer to a receiver in a power distribution substation include receiving the data record over a secondary data path in the event that the primary path is not available. The data record received over the secondary path through a second transformer rather than the first transformer must not interfere with other data transmissions from other transmitters and needs to identify the source of the transmission. An alternative to using a secondary data path through second transformer rather than the first transformer is to provide a data bridge around an opening in the primary path. This abstract is drafted to aid those searching for relevant patents and does not represent a legal limit on the scope of claims arising from patents claiming priority to this application.
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Citations
14 Claims
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1. A method of conveying a first data record comprising information about a first transformer, the first transformer having a primary side adapted to receive power from a first feeder bus at a first voltage and a secondary side adapted to output power at a second voltage that is lower than the first voltage, the first data record moving from a first transmitter on the secondary side of the first transformer to a receiver in data communication with the first feeder bus, the method comprising:
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creating the first data record for output from the first transmitter, the first data record comprising information about the operation of the first transformer; transmitting the first data record onto a portion of an electrical distribution network using a power line carrier frequency; receiving at the receiver the first data record from the first transmitter comprising information about the first transformer through a second feeder bus that does not provide power to the primary side of the first transformer; decoding the first data record to identify that the data record was transmitted from the first transmitter and comprises information about the operation of the first transformer and; wherein the step of transmitting the first data record onto the portion of the electrical distribution network using the power line carrier frequency comprises transmitting the first data record onto the electrical distribution network between a first network protector on the secondary side of the first transformer and a local distribution network connected to the secondary side of the first transformer such that a data communication path between the first transmitter and the second feeder bus does not include the first network protector. - View Dependent Claims (2, 3, 4, 5)
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6. A method of conveying a first data record comprising information about a first transformer, the first transformer having a primary side adapted to receive power at a first frequency from a first feeder bus at a first voltage and a secondary side adapted to output power at a second voltage that is lower than the first voltage, the first data record moving from a first transmitter on the secondary side of the first transformer to a receiver in data communication with the first feeder bus and a second feeder bus, the method comprising:
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creating the first data record for output from the transmitter, the first data record comprising information about the operation of the first transformer; transmitting using a power line carrier frequency the first data record onto a portion of an electrical distribution network between a first network protector on the secondary side of the first transformer and a local distribution network connected to the secondary side of the first transformer such that a data communication path between the first transmitter and the second feeder bus does not include the first network protector; passing the first data record around an electrical component that is not currently allowing for the passage of the power line carrier frequency from the first transmitter to the receiver; receiving the first data record from the first transmitter comprising information about the first transformer through a communication path that excludes the first transformer; and decoding the first data record to identify that the first data record was originally transmitted from the first transmitter. - View Dependent Claims (7, 8, 9, 10)
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11. A method of conveying a first data record comprising information about a first transformer, the first transformer having a primary side adapted to receive power from a first feeder bus at a first voltage and a secondary side adapted to output power at a second voltage that is lower than the first voltage, the first data record moving from a first transmitter on the secondary side of the first transformer to a receiver in data communication with the first feeder bus, the method comprising:
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creating the first data record for output from the first transmitter, the first data record comprising information about the operation of the first transformer; conveying the first data record from the first transmitter to an input port on a second transmitter, the second transmitter associated with a second transformer having a primary side adapted to receive power from a second feeder bus at the first voltage and a secondary side adapted to output power at the second voltage that is lower than the first voltage, the second transmitter connected to the secondary side of the second transformer; transmitting the first data record from the second transmitter to the secondary side of the second transformer between the secondary of the second transformer and a second network protector connected between the secondary side of the second transformer and a local distribution network, the transmission of the first data record by the second transmitter allowing the first data record to pass through the second transformer to reach the second feeder bus without traveling through the second network protector; receiving the first data record comprising information about the first transformer through the second feeder bus that does not provide power to the primary side of the first transformer; and decoding the first data record to identify that the data record was originally conveyed from the first transmitter. - View Dependent Claims (12, 13, 14)
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Specification