An electric energy meter for a poly-phase electricity network includes a power transformer having a primary side and a secondary side, a first analog front end (AFE) unit is coupled to the secondary side of the power transformer, and a microcontroller coupled to the primary side of the power transformer. The first AFE unit is to be coupled to a first phase of the poly-phase electricity network. The microcontroller is configured to transmit a digitized request signal to, and to receive a measurement signal from, the first AFE unit via the power transformer. More specifically, the first AFE unit, upon receiving the digitized request signal, is to extract information from the digitized request signal.

A meter communication interface device includes a radio frequency (RF) communication unit, multiple different types of communication ports, and a controller. The RF communication unit receives, via RF signaling, at least one of first commands, instructions or data destined for a first meter encoder, meter, or meter interface unit (MIU). The controller selects a first communication port from the multiple different types of communication ports, and sends, via the selected first communication port using a first communication mechanism, the at least one of first commands, instructions or data to the first meter encoder, meter, or MIU.

A remote power usage meter connects to a cable from a generator or similar device that allows remote data gathering for use within a system that provides improved functionality. The power usage meter includes a sensor board, a main unit, and a battery. It provides actionable real-time AC power data. Usage of the AC data is logged using disclosed techniques. Data packets are provided with the data as well other parameters derived from measured AC current and AC voltage.

A modem of a smart electricity meter obtains, following a registration in the powerline communication network of the ad hoc type, routing information and encryption information, by exchanges of messages in the powerline communication network. The smart electricity meter saves in non-volatile memory the routing information and the encryption information, the routing information being saved in association with information representing an instant at which the backup is made. At the time of a subsequent re-registration of the smart electricity meter following a disconnection of the powerline communication network, the smart electricity meter retrieves the routing and encryption information previously saved in the non-volatile memory, updates it by deleting any route information that is no longer valid, and uses it to communicate in the powerline communication network.

A system includes a central analysis station and a display. The central analysis station may be configured to receive a unique identifier and performance data from each of a plurality of solar panels. The central analysis station may detect a problem in at least one of the plurality of solar panels based on the performance data. A display may be configured to display a status of the at least one of the plurality of solar panels based on the detected problem.

There is provided an intelligent electronic device for responding to user data and information requests regarding power usage and power quality for any metered point within a power distribution system. The intelligent electronic device includes a first network interface which receives client side information and data requests, which are processed in accordance with a network protocol and forwarded to a network interface via a network socket interface translator which translates management signals to facilitate the eventual data transfer. Protocol routines process the requests by constructing an internal data request in certain cases and forwards the internal data request to a data interface for translation from an internal data request format of the protocol routine format to a native database format. The database receives the translated request, and retrieves the requested data from a measuring unit of the electric power meter, and forwards the data back to the requesting client.

Provided is a technique for monitoring energy consumption in an electric vehicle (EV) charging network. The technique is based on using messages from one or more EV charging stations, each of which comprises a timestamp, a station ID, a charging session ID, and an energy meter reading. Whenever a new message is received, it is first stored in a database, whereupon it is checked whether the database comprises an older message with the same station ID and charging session ID as the new message. If the older message is present in the database, a time difference and an energy difference between the new and older messages are calculated. Then, a time granularity level is selected based on the time difference. An energy consumption distribution between the timestamps of the new and older messages is obtained based on the time granularity level and the energy difference.

A system and method for measuring a parameter level is provided. The system including an electricity meter, the meter having an electricity measurement sensor having a source side and a load side. A socket and a collar are provided. The collar being electrically connected between the socket and the electricity meter, the collar having at least one first connector for a first phase of electricity and at least one second connector for a second phase of electricity, the first connector and second connector being electrically coupled to the load side, and a sensor electrically connected to at least one of the at least one first connector and the at least one second connector.

A system for alert of energy resource outages includes: a resource monitor, disposed within radio range of resource meters that each transmit corresponding radio signals indicative of corresponding meter identifiers and current readings, configured to: determine whether the corresponding radio signals are fixed frequency or frequency hopping by scanning frequency channels for a time period and counting hits of desired meter identifiers; decode each of the one or more of the corresponding radio signals of the resource meters according to determined protocol to obtain one or more of the corresponding meter identifiers and current readings; and transmit the one or more of the corresponding meter identifiers and current readings; and a server, configured to: receive the one or more of the corresponding meter identifiers and current readings; employ the corresponding meter identifiers and current readings to detect an outage; and transmit an alert that corresponds to the outage.

A power supply control circuit for controlling operation of a power supply for an electricity meter during an alternating current (AC) power outage includes: an input section configured to receive a representation of an output voltage of the power supply and a power loss signal; a comparator section configured to generate an output signal based on the power loss signal and the representation of the output voltage; and a feedback control section configured to control a feedback signal to the power supply based on the output signal from the comparator section. When activated by the output signal from the comparator section, the feedback control section is configured to change the feedback signal with respect to the feedback signal from a feedback circuit caused the output voltage. The change in the feedback signal causes the power supply to stop supplying the output voltage.