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 during a first time slot allocated for use by the first transmitter;
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; and
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.
2 Assignments
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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.
25 Citations
19 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 during a first time slot allocated for use by the first transmitter;
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; and
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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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, 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 the first data record onto a portion of an electrical distribution network using a power line carrier frequency during a first time slot allocated for use by the first transmitter;
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 includes 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 (9, 10, 11, 12)
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13. 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 portions of an electrical distribution network using a power line carrier frequency during a first time slot allocated for use by the first transmitter, the first data record introduced between the secondary side of the first transformer and a first network protector and introduced between the first network protector and a local distribution network connected to the secondary side of the first transformer, such that first data record has access to the electrical distribution network on either side of the first network protector while the first network protector is open;
receiving 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; and
decoding the first data record to identify that the first data record was originally transmitted from the first transmitter. - View Dependent Claims (14, 15)
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16. 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 (17, 18, 19)
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Specification