A power calculation apparatus includes a microprocessor and a memory. The microprocessor is configured to perform: acquiring a power amount information regarding amounts of power input to and output from a plurality of vehicles, the amounts of power being detected by a plurality of measuring instruments provided in the plurality of vehicles or interposed between a power grid and the plurality of vehicles; classifying the plurality of measuring instruments based on errors possessed by the plurality of measuring instruments to set a plurality of groups; and calculating a total power input and output in each of the groups, based on the power amount information. The setting the plurality of groups includes setting the plurality of groups such that a mean value of errors of amounts of power in the groups is a predetermined value or less.

A device for monitoring the function of an engine is powered by heat from the engine or other sources other than a conventional, external direct electrical power supply, which may create sparks and/or be unavailable. The device monitors one or more of heat, vibration, or other parameters and can detect certain problems with engine function. The device is particularly suited for remote engine monitoring, and can store and/or display data concerning monitored engine characteristics, and/or directly or indirectly send such data to a location removed from the engine.

A system of electrical distribution within a building, which selectively energizes power sockets only when an appliance is connected to the socket and in need of power.

An electric energy supply management method includes having a certifier system define a reference electric power profile for an electric apparatus, and having the certifier system provide a device coupled to the electric apparats and to a socket that delivers electric energy provided by an electric energy supplier. The device is associated only to the electric apparatus through the reference electric power profile. The method also includes having a user of the electric apparatus couple the electric apparatus to the socket through the device, and having the device check that the electric apparatus is coupled to the socket by comparing a measured electric power profile of the electric apparatus to the reference electric power profile. If the check has a positive outcome, the method has the device collect measurements about the electric power used by the electric apparatus and certify them as energy consumptions of the electric apparatus.

A sensor for monitoring utility poles includes a sensing module to detect a physical quantity from a utility pole or a conductor supported by a utility pole to which the sensor is attached in use. A power supply supplies power to the device and a memory for storing sensor data. A communications module is used for transmitting and receiving sensor data to and from one or more sensors which are attached to other utility poles located adjacent to or nearby the utility pole. A processor uses the detected sensor data together with received sensor data to calculate if the utility pole to which the sensor is attached has changed its physical condition, and wherein if the processor calculates that the utility pole to which the sensor is attached has changed its physical condition, a message is transmitted via the communications module to a remote server.

A battery pack management device capable of reducing power consumption while transmitting and receiving data between a master BMS and a slave BMS by using a wireless communication method. The battery pack management device according to the present disclosure includes: a master BMS including an external communicator, an internal communicator, and a master controller and a slave BMS including a power supply, a state measurement sensor, a slave wireless communicator, and a slave controller.

A device has as purpose the automation of building infrastructure through IoT and the corresponding device installation process, which has specific application in the areas of civil engineering and electric engineering, making use of the Internet of Things and information technology. Essentially, the device can be an automation device installed inside a standard box, at least 4x2, which projects phase, such automation device as a printed circuit board, the device mentioned with return to lamp or other device to which it is coupled, which further receives the neutral/common wire. In case of application in outlets, the printed circuit board receives the direct connection of the neutral/phase and/or phase/phase.

A power switch comprises a SPDT switch having a common side and a switch side; a first isolation switch electrically connected at the common side of the SPDT switch and a second isolation switch electrically connected at the switch side of the SPDT switch; a microprocessor for detecting a current direction and controlling the conduction state of one of the first isolation switch and the second isolation switch in response to the detected current direction; and a power converter converting AC power to DC power for powering the first isolation switch, the second isolation switch and the microprocessor.

A method of operating a computer device includes obtaining measurements of one or more conditions of a power grid component associated with the computer device. The computer device forecasts a future state of the one or more conditions of the power grid component associated with the computer device. The computer device communicates with other computer devices associated with other power grid components to negotiate a behavior of the power grid component associated with the computer device using the forecast.

A battery system includes a plurality of battery modules and a control apparatus. The battery includes a battery group that includes two or more battery modules including battery units and battery monitoring units. The battery monitoring units of the battery modules being connected to each other via a communication line. The battery modules perform wired communication via the communication line. The battery group further includes a wireless receiving unit and a wireless transmitting unit. The wireless receiving unit wirelessly receives a command signal transmitted from the control apparatus. The wireless transmitting unit wirelessly transmits, to the control apparatus, a data signal including module identification information differing for each battery module. In the battery group, the wireless receiving unit is provided in a single battery module of the battery modules and the wireless transmitting unit is provided in a single battery module of the battery modules.