Disclosed are an online analysis system and method for a line loss of a transmission line. The system includes: a terminal extension and a terminal host, where time information synchronization between the terminal extension and the terminal host and between terminal extensions is performed by a clock synchronization module, and communication between the terminal extension and the terminal host and between the terminal extensions is performed by a communications module; and a line loss management platform, configured to receive measurement data of the terminal extension and the terminal host, match time information in the measurement data, and if time information in the measurement data of the terminal extension and the terminal host is matched, and time information in measurement data of the terminal extensions is matched, determine corresponding line loss information based on corresponding measurement information.

A system for estimating a real-time renewable energy generation quantity according to an embodiment of the present disclosure includes a site setting unit for setting a benchmarking group based on geographical locations of a plurality of renewable energy generation sites and setting a benchmarking site for each benchmarking group, a site generation quantity calculation unit for calculating a real-time generation quantity prediction value of each of sites except the benchmarking site among the sites included in the benchmarking group by using a preset prediction model based on a real-time generation quantity actual-measurement value of the corresponding benchmarking site, and a total generation quantity estimation unit for estimating a total real-time generation quantity of all the sites by summing the calculated real-time generation quantity prediction values for the respective sites and the real-time generation quantity actual-measurement value of the benchmarking site.

A system for estimating a real-time renewable energy generation quantity according to an embodiment of the present disclosure includes a site setting unit for setting a benchmarking group based on geographical locations of a plurality of renewable energy generation sites and setting a benchmarking site for each benchmarking group, a site generation quantity calculation unit for calculating a real-time generation quantity prediction value of each of sites except the benchmarking site among the sites included in the benchmarking group by using a preset prediction model based on a real-time generation quantity actual-measurement value of the corresponding benchmarking site, and a total generation quantity estimation unit for estimating a total real-time generation quantity of all the sites by summing the calculated real-time generation quantity prediction values for the respective sites and the real-time generation quantity actual-measurement value of the benchmarking site.

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 water-meter extension pole is an apparatus that positions a smart device beside a water meter in order to safely and accurately capture a water meter reading. The apparatus includes a length-adjustable pole, a first holder, a second holder, and a handle. The length-adjustable pole upholds and positions the first holder and the second holder a desired distance from the handle. The first holder is preferably a spring-loaded clamp that secures a water-meter. The second holder secures a smart device, preferably with a camera, beside the first holder. The handle provides a grip for a user with the length-adjustable pole. The smart device is remotely operated as the apparatus further includes a controller housing, a microcontroller, a wireless communication device, a power source, a power button, and a controller button. The controller housing contains the microcontroller, the wireless communication device, and the power source, preferably beside the handle.

A high power usage meter connects to a high power generator and a load, or splitter, to allow remote data gathering for use within a system that provides improved functionality. The high power usage meter includes a plurality of AC sensors, a main unit, and a battery. It provides actionable real-time AC power data. Usage of the AC data is logged. Data having parameters derived from the measured AC current or AC voltage is generated and provided within the system. Information from the high power usage meter includes location parameters, such as longitude, latitude, and altitude.

A high power usage meter connects to a high power generator and a load, or splitter, to allow remote data gathering for use within a system that provides improved functionality. The high power usage meter includes a plurality of AC sensors, a main unit, and a battery. It provides actionable real-time AC power data. Usage of the AC data is logged. Data having parameters derived from the measured AC current or AC voltage is generated and provided within the system. Information from the high power usage meter includes location parameters, such as longitude, latitude, and altitude.

A DC meter for an electrical vehicle charging station having a pair of DC power supply lines extending from a charging station controller to an electrical vehicle connector, the DC meter comprising a meter unit and a sensor unit. The meter unit comprises a user interface, a sensor interface for connection to the sensor unit, a metering interface for connection to the charging station controller, and a microprocessor configured to receive and process signals received from the sensor unit, to exchange data with the charging station controller and to receive commands from the user interface and output information to the user interface. The sensor unit is separate and connected at a point distal from the meter unit via an interconnection cable for the transmission of measurement signals.

A DC meter for an electrical vehicle charging station having a pair of DC power supply lines extending from a charging station controller to an electrical vehicle connector, the DC meter comprising a meter unit and a sensor unit. The meter unit comprises a user interface, a sensor interface for connection to the sensor unit, a metering interface for connection to the charging station controller, and a microprocessor configured to receive and process signals received from the sensor unit, to exchange data with the charging station controller and to receive commands from the user interface and output information to the user interface. The sensor unit is separate and connected at a point distal from the meter unit via an interconnection cable for the transmission of measurement signals.

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.