Abstract: There is provided with a video reproducing apparatus, including: an access unit configured to access a storage medium holding a plurality of video scenes; an external device search unit configured to search for an external device which can communicate; a scene selecting unit configured to select a video scene from the storage medium based on information of the external device found by the external device search unit; and a video reproducing unit configured to read the selected video scene from the storage medium using the access unit and reproduce the video scene.

Abstract: A gateway apparatus includes a managing unit, an assigning unit, a receiving unit, a generating unit and a transmitting unit. The managing unit manages at least one storage battery group including a set of one or more storage battery systems selected from a plurality of storage battery systems. The assigning unit assigns a first storage battery group, which is one of the at least one storage battery group, to a first charge/discharge instruction apparatus. The receiving unit receives an instruction related to charge or discharge from the first charge/discharge instruction apparatus. The generating unit generates a first control order that is a control order for the storage battery systems belonging to the first storage battery group, based on the instruction. The transmitting unit transmits the first control order to the storage battery systems belonging to the first storage battery group.

Abstract: In one embodiment, there is provided a power converting apparatus that includes: a power receiver configured to receive a first power from a first apparatus; a power converter configured to convert the first power into a second power; a power output module configured to output the second power to the second apparatus; a communication module configured to receive a first identifier of a main controller, wherein the main controller belongs to a first group and the main controller is configured to send a first power output instruction to at least one of the apparatuses belonging to the first group; a conversion information storage module configured to store the first identifier; and a power conversion controller configured to cause the power converter to convert the first power into the second power, when the communication module receives the first power output instruction from the main controller.

Abstract: There is provided a power electronics device including: a first connection unit, a second connection unit, a power conversion unit and a control unit. The first connection unit and the second connection unit are connected to a first power line and a second power line of plural power lines. The power conversion unit converts power from one of the first and second connection units outputs converted power from the other of the first and second connection units. The control unit selects a master device from power electronics devices connected to a third power line that is one of the power lines including the first power line and the second power line, based on power conversion characteristic information of the power electronics devices. The master device controls other power electronics devices except the master device out of the power electronics devices, regarding output of power to the third power line.

Abstract: In one embodiment, there is provided a charge-discharge instructing apparatus. The apparatus includes: an acquiring module configured to acquire specific information and location information for each of a plurality of battery energy storage systems, wherein the specific information represents an electrical characteristic of a battery of each of the battery energy storage systems, and the location information represents an installation position of each of the battery energy storage systems; a group determining module configured to select some of the battery energy storage systems from among the plurality of battery energy storage systems to make a group composed of the selected battery energy storage systems, based on the specific information and the location information; and a managing module configured to send a charge-discharge control instruction to the battery energy storage systems belonging to the group.

Abstract: According to an embodiment, a charge-discharge control device includes a receiving unit, a selecting unit, and a group controller. The receiving unit receives feasibility information. The selecting unit selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of charging groups, one electric power device as a representative device of the charging group to which belongs that electric power device; and selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of discharging groups, one electric power device as a representative device of the discharging group to which belongs that electric power device. Via the selected representative device, the group controller controls the other electric power devices belonging to the charging group or the discharging group to which belongs the selected representative device.

Abstract: According to an embodiment, a charge-discharge control device includes a receiving unit and a group controller. The receiving unit is configured to receive schedule information that indicates a schedule time at which a plurality of electric power devices, each having at least either a charging function or a discharging function, performs at least either charging or discharging. The group controller is configured to, according to the schedule information, perform grouping in such a way that each of the electric power devices belongs to either one of a charging group for performing charging and a discharging group for performing discharging, and control, on a group-by-group basis, each of the electric power devices put in the charging group and each of the electric power devices put in the discharging group.

Abstract: One embodiment provides a charge/discharge determination apparatus for performing a charge/discharge control of a battery based on instructions given from charge/discharge instruction apparatuses, including: a battery information storage unit which stores battery information concerned with the battery; a charge/discharge information storage unit which stores charge/discharge information for charging/discharging the battery; a communication unit which receives a communication message concerned with an access request from each charge/discharge instruction apparatus; and a control unit which controls access from each charge/discharge instruction apparatus based on the battery information, the charge/discharge information and contents of the access request.

Abstract: One embodiment provides a charge/discharge instruction apparatus, including: a charge/discharge instruction unit which instructs a charge/discharge determination apparatus to perform a charge/discharge control of a battery; a charge/discharge information storage unit which stores charge/discharge information for charging/discharging the battery; a control unit which controls an access request to the battery based on the stored charge/discharge information and contents of the charge/discharge control; a generating unit which generates a communication message concerned with the access request controlled by the control unit; and a communication unit which transmits the communication message concerned with the access request to the charge/discharge determination apparatus.

Abstract: A power control apparatus is provided that includes a calculation unit, a detection unit, a storage unit, a selection unit and an execution unit. The detection unit detects whether a required spare capacity is short, based on the required spare capacity, the spare power, and the total spare power capacity. The storage unit stores power control operation items. The selection unit selects power control operation items if the required spare capacity is short. The execution unit executes application operation of one or more the power control operation items until the required spare capacity becomes available, and executes waiting operation of one or more power control operation items executing the application operation if the required spare capacity is available.

Abstract: A determination determines permission/forbiddance to charge an accumulator that obtains electrical power from a power grid network. The determination device comprises a first acquisition unit configured to acquire first information about a requested power amount requested to charge the accumulator, a second acquisition unit configured to acquire second information about an available power amount that can be provided from the power grid network, and a determination unit configured to determine permission or forbiddance with respect to the accumulator based on the first information and the second information.

Abstract: There is provided a charge/discharge determining apparatus for managing a natural energy power generation facility, a power plant and a plurality of batteries in an electrical power system. The apparatus includes: a system information acquiring section configured to acquire an actual value of natural energy power that is supplied from the natural energy power generation facility to the electrical power system; a battery information acquiring section configured to acquire battery electric energy information from the respective batteries, wherein the battery electric energy information indicates charge/discharge electric energies of the respective batteries which can be discharged from or charged in the respective batteries; and a determining section configured to determine at least one battery to be charged/discharged from among the plurality of batteries, wherein when an absolute value of a difference between the actual value and a predicted value of the natural energy power is larger than a threshold value.

Abstract: An energy management apparatus includes: a communicator capable of communicating with at least a meter apparatus among the meter apparatus and a server apparatus that collects measurement information from the meter apparatus; a device registration processor configured to determine whether the direct communicator to the server apparatus can communicate with the server apparatus; if the direct communication is possible, transmit to the server apparatus a device registration message that requests to register a device identifier of the meter apparatus and a device identifier of the energy management apparatus; and, if the direct communication to the server apparatus is not possible, transmit the device registration message for the server apparatus to the meter apparatus; a communication processor configured to obtain energy control information of the device transmitted from the server apparatus; and a control executor configured to control the used energy amount of the device based on the energy control informati

Abstract: According to one exemplary embodiment, a charging/discharging determination apparatus includes: a receiving module which receives information of a rated capacity of a battery; and a determination module which determines that charging or a discharge of the battery is permitted if an absolute value of a difference between the rated capacity and a measured capacity which is an actual capacity of the battery is within a threshold value.

Abstract: There is provided a generator system monitoring apparatus for a generator system including a generator, a first measuring apparatus and a second measuring apparatus. A power-generation state determining unit determines whether the generator is generating the electric power or not. A measurement information acquiring unit acquires, when it is determined the generator is not generating the electric power, a first measurement value and a second measurement value from the generator system, the first measuring apparatus measuring electric power generated by the generator to obtain the first measurement value, and the second measuring apparatus measuring the electric power generated by the generator to obtain the second measurement value. A system state determining unit determines whether the first measuring apparatus has an abnormality or not by comparing the first measurement value and the second measurement value with each other.

Abstract: According to one embodiment, an emission factor calculating apparatus includes a receiving unit, a received electricity (i.e., electric power) measuring unit, a generated electricity measuring unit, and an emission factor calculating unit. The receiving unit receives an emission factor of a higher-level system at first regular intervals. The received electricity measuring unit measures, as a received electricity, electricity received from the higher-level system and accumulated. The generated electricity measuring unit measures electricity generated with zero emission in a target system. The emission factor calculating unit calculates a substantial emission factor of the target system at regular intervals (i.e., at a fixed interval), based on a ratio between the received electricity and the measured electricity generated, and the emission factor of the higher-level system. The emission factor calculating unit informs a load or a lower-level system of the substantial emission factor.

Abstract: According to one embodiment, a power control apparatus includes a calculation unit, a detection unit, a storage unit, a selection unit and an execution unit. The calculation unit calculates a spare power capacity and a total spare power capacity. The detection unit detects whether a required spare capacity is short, based on the required spare capacity and each of the spare power capacity and the total spare power capacity. The storage unit stores power control operation items. The selection unit selects power control operation items if the required spare capacity is short. The execution unit executes application operation of one or more the power control operation items until the required spare capacity becomes available, and executes waiting operation of one or more power control operation items executing the application operation if the required spare capacity is available.

Abstract: In a communication device for carrying out communications according to an Echonet protocol on a network of a prescribed network layer protocol, a prescribed bit sequence value of a network layer address or a datalink layer address of the communication device is set as a candidate for an Echonet address to be used in the Echonet protocol. Then, an inquiry packet for inquiring whether the prescribed bit sequence value is identical to the Echonet address used by each other communication device or not is transmitted, and the prescribed bit sequence value is determined as the Echonet address of the communication device when the prescribed bit sequence value is judged as not identical to any of Echonet addresses used by the other communication devices.

Abstract: The other communication devices are prohibited to transmit the address initialization request for a prescribed period of time since one communication device transmitted the address initialization request for an address managed by a control protocol, so that the conflict of the initialization requests for the same address will not occur and the problem of assigning the address in overlap to the communication devices will not arise. Also, the other communication devices are prohibited to transmit the address server detection request packet for a prescribed period of time since one communication device transmitted the address server detection request packet, so that the conflict on the network by a plurality of address server detection requests will not occur, and it is possible to determine the MAC address server uniquely.

Abstract: According to one embodiment, a communication apparatus communicates with both a controller device and a control object device. The communication apparatus includes a first provide section that provides file configuration information conforming to a file system format acceptable to the controller device; a receive section that receives an access request to a file included in the provided file configuration information, from the controller device; a convert section that converts the access request to control command information conforming to a predetermined protocol acceptable to the control object device; and a second provide section that provides the control command information to the control object device.