A method for transmitting data from a management entity in a communication system further comprising at least one data concentrator device to which smart electricity meters are attached via a first powerline communication network, each data concentrator device being connected to the management entity via a second communication network. Said smart electricity meter receives, coming from the management entity, via the first powerline communication network, a message indicating that a transfer of data is pending with the management entity. Said smart electricity meter comprising a wireless communication interface adapted to communicate via a third wireless local communication network with a residential gateway connected to the management entity via a fourth communication network, said smart electricity meter obtains said data from the management entity via the third wireless local communication network.

Methods, systems, and computer program products for generating high resolution inferences in electrical networks are provided herein. A computer-implemented method includes collecting multiple items of data from one or more data sources arising from a power distribution network, wherein the multiple items of data comprise (i) one or more levels of temporal resolution and (ii) one or more levels of spatial resolution; determining a network topology of the power distribution network based on identification of one or more connections between each of multiple components within the power distribution network; and generating a power flow estimate for one or more nodes within the power distribution network at a pre-determined level of spatio-temporal resolution, wherein said generating comprises applying a model to (i) the multiple items of collected data, (ii) the determined network topology, and (iii) one or more relations constraining the power flow estimate at the pre-determined level of spatio-temporal resolution.

A device, system, and method for communicating with a power inverter of an array of inverters includes transmitting a relay message from an inverter array controller to a relay inverter in response to failing to receive a response from at least one power inverter of the array. The relay inverter is configured to retransmit a message from the inverter array controller to a non-responsive power inverter of the array of inverters in response to receiving the relay message. The relay inverter may subsequently retransmit a reply received from the non-responsive power inverter to the inverter array controller or to another power inverter of the array of inverters.

A router networking method includes a child router that is coupled with an interface of the parent router, to be combined with the parent router, where a network corresponding to the interface is a first network, network isolation exists between the first network and a second network, and the second network is a local area network provided by the parent router. The child router accesses the first network and obtains networking information from the first network, where the networking information is used to access the second network. The child router is unplugged from the interface of the parent router to be detached from the parent router. The child router is coupled with a target interface, where a network corresponding to the target interface is the second network, and the child router accesses the second network based on the networking information using the target interface.

A power line communication system (200) comprising a first node (202) and a second node (204). The first node (202) comprises a second-node-connection-terminal (206); a first-node-transmission-module (208) that provides a first-node-output-signal (210) to the second-node-connection-terminal (206); and modulates the voltage level of the first-node-output-signal based on first-node-transmission-data. The second node (204) comprises a second-node-input-voltage-terminal (214) that is connected to the second-node-connection-terminal (206) of the first node (202) in order to receive the first-node-output-voltage-signal (210). The second node (204) is configured to use the first-node-output-voltage-signal (218) as a supply voltage. The second node (204) also includes a second-node-transmission-module (216) that: provides a second-node-current-signal (218) to the second-node-input-voltage-terminal (214) for transmission to the second-node-connection-terminal (206) of the first node (202); and modulates the current level of the second-node-current-signal (218) based on second-node-transmission-data. The second node (204) also includes a second-node-reception-module (222) that is configured to process the voltage level of the received first-node-output-signal (210) in order to demodulate the first-node-transmission-data. The first node (202) further comprises a first-node-reception-module (226) that processes the current level of the second-node-current-signal (218) received from the second node (204) at the second-node-connection-terminal (206) in order to demodulate the second-node-transmission-data.

A method for operating a device for power line communication includes measuring noise on the power line and detecting noise timing properties. Further, a method for adapting power line communication to detected noise timing properties, which may be asynchronous to the AC mains signal, includes adapting parameters for encoding a data stream and/or transmission parameters according to the detected noise timing properties and/or transmission timing information derived from the detected noise timing properties, encoding a data stream according to the adapted parameters for encoding, and transmitting the encoded data stream to the power line on at least one power line communications channel according to the adapted transmission parameters.

A system includes a switch of an electric power distribution system, the switch being configured to receive data and to transmit data, and the system includes a controller configured to communicatively couple to the switch. The controller is configured to create a software defined network by instructing the switch to transmit data to a location, and the controller is configured to generate a set of keys and to provide the set of keys to the switch to enable the switch to communicate data via a Media Access Security (MACsec) communication link, a MACsec key agreement (MKA) connectivity association, or both.

Aspects of the present disclosure are directed toward the use of broadcast transmissions to multiple endpoint devices. These broadcast transmissions can be particularly useful for reducing the communication bandwidth used during transmission of configuration data to the endpoint devices. In order to implement the broadcast communications, the present disclosure describes a mechanism for configuring targeted endpoint devices to be responsive to the broadcast communications. For instance, a configuration command can be sent to each of the targeted endpoint devices. The configuration command can include a virtual ID. The targeted endpoint devices can configure themselves to listen for subsequent broadcast messages addressed to the virtual ID. Configuration data can then be sent using the virtual ID and associated broadcast messages.

A physical layer transceiver for a data channel includes receiver circuitry configured to receive signals on the data channel, transmit circuitry configured to transmit signals onto the data channel, and adaptive filter circuitry coupled to the receiver circuitry and the transmit circuitry and configured to filter the data channel by operating on input frequency-domain data samples to output filtered data samples. The adaptive filter circuitry includes error sample generation circuitry configured to generate error samples representing a difference between a target response and the filtered data samples, arithmetic-only circuitry configured to approximate a windowing function to operate on the error samples, and output sample generation circuitry configured to operate on windowed error samples to provide the output filtered data samples. The comparison circuitry may be configured for time-domain operation and may further be configured to transform the error signals into frequency-domain error signals.

A system for assigning addresses to a plurality of communication nodes coupled via a power line is disclosed. Each of the plurality of communication nodes includes a current sensor. The plurality of communication nodes includes one master communication node and the master communication node is configured to start an auto-addressing process by asking the each of the plurality of communication nodes to sink a preselect amount of current and measure current, through the current sensor, flowing through the powerline under the each of the plurality of communication nodes. A first communication node in the plurality of communication nodes that does not measure any current flowing under the first communication node is assigned a first address.