Abstract: According to an embodiment, there is provided a communication apparatus including: a first acquiring unit, a determining unit and a second acquiring unit. The first acquiring unit acquires first data from a first acquisition destination upon receiving an acquisition request of the first data from a requester. The determining unit determines second data required for the requester by analyzing the first data acquired by the first acquiring unit and then determines whether the second data exists in a data storage accessible from the requester, the data storage being arranged inside or outside the communication apparatus. The second acquiring unit acquires the second data from a second acquisition destination when it is determined the second data does not exist in the data storage.

Abstract: According to one embodiment, a communication device includes a start-up signal reception unit that receives a start-up signal that a start node transmits for starting up a node to be started; a first interface connected to Ethernet; a second interface connected to Ethernet; a power reception unit that receives PoE power through the first interface; a PoE controller that receives the start-up signal and PoE power and gives a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and a power transmission unit that receives the transmission instruction from the PoE controller and transmits the start-up power signal through the second interface.

Abstract: An access authorizing apparatus includes a receiving unit, a first transmitting/receiving unit, a token issuer and a transmitting unit. A receiving unit receives first approval information indicating that access to the resource in the device has been approved by an access approver, from the first application via the network. A first transmitting/receiving unit transmits an access approval request including the first approval information to the access approving apparatus, and receives access enable/disable information indicating whether the access to the resource by the first application is permitted, from the access approving apparatus. A token issuer, when the access enable/disable information indicates that the access to the resource is permitted, issues token information that gives authority to access the resource to the first application. A transmitting unit transmits the token information issued by the token issuer, to the first application.

Abstract: The first wireless communication unit configured to wirelessly communicate with a first wireless apparatus on a first wireless network. The beacon transmitting unit cyclically transmits a beacon signal to the first wireless apparatus via the first wireless communication unit. The period determiner determines a transmission permission period during which data transmission by the first wireless apparatus is permitted. The notification unit notifies a control signal specifying the transmission permission period to the first wireless apparatus via the beacon signal. The power managing unit performs control so that power supply to the first wireless communication unit is suspended during a suspension period, the suspend period being a period except both the transmission permission period and a transmission timing period of the beacon signal within a whole period.

Abstract: According to an embodiment, a communication device connected to a host device includes a wireless communication unit and a communication control unit. The communication control unit controls the wireless communication unit to transmit a file which is stored in a storage unit of the communication device by the host device to a transmission destination corresponding to a type of the host device and a type of the communication device using wireless communication.

Abstract: According to an embodiment, a communication device includes a first processor and a second processor. The first processor is switchable to a sleep state having low power consumption. The second processor performs operations related to information acquisition via a network. The second processor includes a networking unit, an information obtaining unit, and a start-up control unit. Based on first information which indicates a connection destination of the network as specified in the first processor, the networking unit performs communication with the connection destination and notify a permission of switching the first processor to the sleep state. The information obtaining unit obtains second information which is associated to the first information. The start-up control unit switches the first processor back to an operating state from the sleep state when the information obtaining unit finishes obtaining the second information associated to the first information specified by the first processor.

Abstract: According to one embodiment, there is provided a charge/discharge instruction apparatus including: a communicating unit, a communication frequency deciding unit, an information collecting unit and a charge/discharge managing unit. The communicating unit communicates with a battery storage system. The communication frequency deciding unit decides a collection frequency of Information related to the battery storage system according to a state of the battery storage system. The information collecting unit collects the information from the battery storage system at the collection frequency decided in the communication frequency deciding unit. The charge/discharge managing unit controls at least one of charge and discharge of the battery storage system based on the information collected in the information collecting unit.

Abstract: The first wireless communication unit configured to wirelessly communicate with a first wireless apparatus on a first wireless network. The beacon transmitting unit cyclically transmits a beacon signal to the first wireless apparatus via the first wireless communication unit. The period determiner determines a transmission permission period during which data transmission by the first wireless apparatus is permitted. The notification unit notifies a control signal specifying the transmission permission period to the first wireless apparatus via the beacon signal. The power managing unit performs control so that power supply to the first wireless communication unit is suspended during a suspension period, the suspend period being a period except both the transmission permission period and a transmission timing period of the beacon signal within a whole period.

Abstract: A first confirmation unit performs a first confirmation of confirming presence of a connection to a correspondent node in a first communication layer, presence of a connection to a correspondent node in a second communication layer, and presence of a connection to a correspondent node in a third communication layer. A locating unit locates a failure point in communication based on a result of the first confirmation. An output unit outputs a result of the location.

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: A power electronics device includes: first and second connection units, a power conversion unit and a control unit. The first and second connection units are connected to a first power line and a second power line, respectively. The power conversion unit converts power input from one of the first and second connection units and output the converted power to the other of the first and second connection units. The control unit identifies, based on power connection information indicative of a connection relationship between a plurality of power electronics devices through the plurality of power lines, picks up a group of power electronics devices on the same power line, decides the master power electronics device from the group, and orders the master power electronics device to control other power electronics devices among the group with respect to at least one of power output to or power input from the power line.

Abstract: An apparatus for controlling a virtual OS according to an embodiment comprises a scheduler configured for calculating a resource for zero or more first virtual machines included in a first group constructed from one or more virtual machines, calculating a ratio of an executing period with respect to a cycle of the resource, based on a throughput and a first occupancy of a processor at a time when the processor processes a first traffic and on a volume of a second traffic which is transmitted or received by zero or more second virtual machines included in the first group, calculating a second occupancy of the processor for processing the second traffic of the zero or more second virtual machines by the processor, and calculating the ratio of the zero or more first virtual machines and a sum of the second occupancies with respect to the zero or more second virtual machines.

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 some embodiments, there is provided a communication terminal, including: a communication device, a connection processing unit, a device power managing unit and a device power managing unit. The communication device communicates with a network. The connection processing unit establishes a connection with a first communication terminal on the network. The communication managing unit detects a start and an end of a session on the connection. The device power managing unit controls feeding of power to the communication device in accordance with a detected result by the communication managing unit.

Abstract: There is provided a communication terminal, including: a communication device, a communication managing unit and a device power managing unit. The communication device forms an association with communication equipment and communicates with the communication equipment based on the association. The communication managing unit decides an operational mode of the communication device. The device power managing unit controls power state of the communication device in accordance with an operational mode decided by the communication managing unit. The device power managing unit sets, when a first operational mode is decided by the communication managing unit, the communication device in a first power state where transmission is not allowed and then transitions a power state of the communication device from the first power state to a second power state at a first cycle temporarily where transmission is allowed. The communication device transmits a presence notification frame when set in the second power state.

Abstract: There is provided with a remote control method using a terminal device connected to a first network and an information processing server connected to a second network, including: setting a tunnel between the terminal device and the information processing server; transmitting a broadcast or multicast packet output from service providing servers on the first network to the information processing server via the tunnel to cause the server to find the service providing servers and services provided by the service providing servers; notifying the terminal device of the services found, from the information processing server via the tunnel or the second network; and if execution request of the service is received by the information processing server from the terminal device via the tunnel or the second network, conducting data communication concerning the service between a service providing server providing the service and the information processing server, via the second network.

Abstract: According to an embodiment, there is provided with a non-transitory computer readable medium having instructions stored therein, which, when executed by a computer, causes the computer to execute steps including: calculating an access load on a memory area including a plurality of segment areas and determining, for each of the segment areas, one of a plurality of power states including a first power state and a second power state with its power consumption being lower than that of the first power state in accordance with the access load; and setting each of the segment areas to the power state determined therefor.

Abstract: A wireless terminal device performs first, second, and third scans in sequence to detect wireless access points; stores base station information on the detected wireless access points in a storing unit; sets a disappearance flag in base station information that correspond to a wireless access point that was detected in the first scan and not in the second scan; sets a reappearance flag in base station information that correspond to a wireless access point that was not detected in the second scan and was detected in the third scan; identifies a wireless base station corresponding to base station information in which the disappearance flag and the reappearance flag are set; and displays information on the wireless base station identified on a display unit.