Abstract: The present invention provides a technology for enhancing movement efficiency and safety overall without depending on a person's experience or intuition, when a guidance instruction is given to a crowd. A crowd index calculating unit calculates an index regarding safety of a crowd and an index regarding movement efficiency of the crowd on the basis of crowd information on the crowd in target areas. Further, a crowd allocation determining unit determines allocation of the crowd in guidance spots to the target areas on the basis of the indexes calculated for the respective target areas. Further, a guidance instruction determining unit is provided with the guidance instruction determining unit that determines, for each guidance spot, details of a guidance instruction based on the determined allocation.

Abstract: A power control system with a power management apparatus and a power monitoring control apparatus for each control segment. The power monitoring control apparatus is provided with: a contribution degree setting unit setting the degree of contribution of each control segment; a device control unit controlling the power consumption of each power using device connected; a priority control unit setting a priority for reducing the power of the power using device; and a device monitoring unit obtaining the priority of each power using device and transmitting the obtained priority to the power management apparatus. The power management apparatus is provided with an optimum control calculation unit determining a control command for controlling each power using device connected. The control command is determined based on: a target value of the total power consumption of all the control segments; the degree of contribution; and the priority of each power using device.

Abstract: A data transfer device compresses and transfers data according to a priority given to a CPU-constraint process imposing a constraint to a compression processing speed over a NW bandwidth-constraint process imposing a constraint to a transfer processing speed. It is necessary to select a compression algorithm, applied to the CPU-constraint process or the NW bandwidth-constraint process, based on a NW bandwidth, compressibility, and compression processing speed maximizing an effective throughput. When the amount of compressed data held in a temporary hold part is smaller than the predetermined value, the compressed data of the NW bandwidth-constraint process is stored in a temporary hold part. When the amount of compressed data held by the temporary hold part is larger than the predetermined value, the compressed data of the CPU-constraint process is stored in the temporary hold part. Thus, it is possible to improve an effective throughput by effectively using NW bandwidths.

Abstract: A data transfer device calculates a compression performance value which represents a quantity of data that can be compressed per unit time and a transfer performance value which represents a quantity of data that can be transferred per unit time, and calculates, based on these values, a compression ratio which represents a ratio of data to be compressed and then transferred to total data to be transferred. The data transfer device extracts, from a storage unit which stores data, the data to be transferred, and then compresses part of the extracted data based on the compression ratio, and transfers the compressed data and remaining data to another device. The compression and transfer processes are performed in parallel.

Abstract: A data transfer device includes a calculation unit and a compression processing unit. The calculation unit determines, from a plurality of compression techniques, a combination of a first compression technique and a second compression technique for optimizing effective throughput based at least on compression performance parameters related to the plurality of compression techniques and a transfer performance parameter related to transfer processing, the first compression technique being a technique in which a speed of compression processing serves as a constraint in a data transfer as compared with a speed of transfer processing, the second compression technique being a technique in which a speed of transfer processing serves as a constraint in a data transfer as compared with a speed of compression processing. The compression processing unit compresses target data using at least one of the first compression technique and the second compression technique.

Abstract: Comfortability can be visually displayed for a user in real time while power consumption is controlled. A display device communicates to/from a power control device for controlling power of a power consumption system including a plurality of apparatus. An input unit specifies a desired set value for each of the plurality of apparatus or a power consumption system including the plurality of apparatus. A display unit displays a display content corresponding to a degree of divergence in real time when an amount of upper limit power for the entire power consumption system including the plurality of apparatus is set, the degree of divergence being calculated based on a comparison between an actual set value for the plurality of apparatus having an amount of power being subjected to demand control based on an evaluation function set for the plurality of apparatus and the desired set value specified through the input unit.

Abstract: To increase the reliability of power supply control of a server group and reduce the power consumption of the server group.

Abstract: A data transfer device includes a calculation unit and a compression processing unit. The calculation unit determines, from a plurality of compression techniques, a combination of a first compression technique and a second compression technique for optimizing effective throughput based at least on compression performance parameters related to the plurality of compression techniques and a transfer performance parameter related to transfer processing, the first compression technique being a technique in which a speed of compression processing serves as a constraint in a data transfer as compared with a speed of transfer processing, the second compression technique being a technique in which a speed of transfer processing serves as a constraint in a data transfer as compared with a speed of compression processing. The compression processing unit compresses target data using at least one of the first compression technique and the second compression technique.

Abstract: A data transfer device compresses and transfers data according to a priority given to a CPU-constraint process imposing a constraint to a compression processing speed over a NW bandwidth-constraint process imposing a constraint to a transfer processing speed. It is necessary to select a compression algorithm, applied to the CPU-constraint process or the NW bandwidth-constraint process, based on a NW bandwidth, compressibility, and compression processing speed maximizing an effective throughput. When the amount of compressed data held in a temporary hold part is smaller than the predetermined value, the compressed data of the NW bandwidth-constraint process is stored in a temporary hold part. When the amount of compressed data held by the temporary hold part is larger than the predetermined value, the compressed data of the CPU-constraint process is stored in the temporary hold part. Thus, it is possible to improve an effective throughput by effectively using NW bandwidths.

Abstract: A distributed object management system includes: a completion information management portion which stores a relay state of the object server and which manages information of the object which should be transmitted again when the transmission to the object server is resumed; and a relay control portion which requests other object server to temporally exclude the object server that has transmitted the suspension request from a copying operation of the object and which, if the resume request is received from the object server that has transmitted the suspension request, requests said other object server to include the object server that has transmitted the resume request in the copying operation of the object again.

Abstract: A data transfer device calculates a compression performance value which represents a quantity of data that can be compressed per unit time and a transfer performance value which represents a quantity of data that can be transferred per unit time, and calculates, based on these values, a compression ratio which represents a ratio of data to be compressed and then transferred to total data to be transferred. The data transfer device extracts, from a storage unit which stores data, the data to be transferred, and then compresses part of the extracted data based on the compression ratio, and transfers the compressed data and remaining data to another device. The compression and transfer processes are performed in parallel.

Abstract: A distributed storage system, includes: a first data storage unit that holds data in a first data structure; a second data storage unit that holds the data in a second data structure different from the first data structure; an update information holding unit that holds an update information item(s) indicating update content of the data, and if a predetermined update condition is satisfied, applies the update information item(s) to the second data storage unit and reflects the update content in the second data storage unit; an update state monitoring unit that monitors the update information item(s) held by the update information holding unit and extracts as an update state an application status of the update information item(s) to the second data storage unit; and an update condition change unit that changes the predetermined update condition based on a change command for changing the predetermined update condition, the change command being determined in accordance with the update state.

Abstract: Provided is a data supply apparatus including a transmission device that sends data to another data supply apparatus; a reception device that receives data from another data supply apparatus; a data storing device that stores data in a storage device; and a data storage determination device that determines whether or not the received data should be stored in the storage device, based on a predetermined supply probability. In a typical example, the reception device receives the data to which supply probability information which indicates the supply probability has been appended; and the data storage determination device determines whether or not the received data should be stored in the storage device, based on the supply probability indicated by the supply probability information.

Abstract: To increase the reliability of power supply control of a server group and reduce the power consumption of the server group.

Abstract: A distributed object management system includes: a completion information management portion which stores a relay state of the object server and which manages information of the object which should be transmitted again when the transmission to the object server is resumed; and a relay control portion which requests other object server to temporally exclude the object server that has transmitted the suspension request from a copying operation of the object and which, if the resume request is received from the object server that has transmitted the suspension request, requests said other object server to include the object server that has transmitted the resume request in the copying operation of the object again.

Abstract: In a distributed file system, the load of a meta server, and communications traffic between a client and the meta server is reduced. Specifically, each of a plurality of clients is provided with an object position calculating section and an arrangement algorithm storage section, and acquires the meta data from the meta server, and determines the objects and the storage positions of the objects (e.g. the object server IDs) through calculation on the side of the client by using an arrangement algorithm ID, the arrangement parameter corresponding to the file which is contained in the meta data.