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information previously saved in the non-volatile memory, updates it by deleting any route information that is no longer valid, and uses it to communicate in the powerline communication network.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 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.

Disclosed is remote meter-reading technology that can be used for remote meter-reading of gas, electricity, tap water, etc. Technology and an apparatus or system capable effectively measuring a battery level with low power consumption is provided. A remote meter-reading terminal unit calculates the level of a battery while obtaining power consumption in an operation mode of an MCU using current output from the battery and obtaining power consumption in a sleep mode using a predetermined current value.

The present disclosure describes smart meter modules. A smart meter module may include a support frame and an outer cover. The support frame includes a top mounting plate, a bottom mounting plate, and an inner bracket between the top and bottom mounting plates and coupled thereto. The top mounting plate is spaced apart a distance from the bottom mounting plate to form an interior space of the module. The inner bracket has a central aperture that is generally perpendicular relative to the top and bottom mounting plates and configured to receive and secure a smart meter within the interior space of the module. The outer cover is configured to be secured to the inner bracket and sized to extend circumferentially around the interior space of the module. One or more elongated mounting apertures in the bottom mounting plate are configured such that the smart meter module can be secured to the top of a mounting pole. Smart meter module assemblies are also provided.

Detection circuitry for an integrated circuit (IC) includes voltage divider circuitry, comparison circuitry, and calibration circuitry. The voltage divider circuitry receives a power supply signal and output a first reference voltage signal and a supply voltage signal based on the power supply signal. The comparison circuitry compares the first reference voltage signal and the supply voltage signal to generate an output signal. The calibration circuitry alters one or more parameters of the voltage divider circuitry to increase a voltage value of the supply voltage signal based on the comparison of the first reference voltage signal with the supply voltage signal.

Methods and systems of electric vehicle charging management for community with energy monitoring are provided, which are suitable for a community including a plurality of dwellings, and each dwelling has an electric vehicle charging station connected to a server through a network. First, a current transformer is used to measure the main power lines of the community to obtain a current consumption of the community, where the main power line is tapped into a plurality of auxiliary power lines to provide electricity for each of the dwellings. The server determines whether the current consumption of the community meets a predetermined condition of the community, and if so, the server executes at least one energy management scheme, wherein the energy management scheme records a power distribution logic, which is used to control the charging operation of the electric vehicle charging station corresponding to the respective dwelling via the network.