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    STATE ESTIMATION APPARATUS, METHOD, AND PROGRAM RECORDING MEDIUM
    11.
    发明申请
    STATE ESTIMATION APPARATUS, METHOD, AND PROGRAM RECORDING MEDIUM 有权

    公开(公告)号：US20220072463A1

    公开(公告)日：2022-03-10

    申请号：US17417479

    申请日：2018-12-26

    Applicant: NEC Corporation

    Inventor： Eisuke SANEYOSHI

    IPC: B01D46/00 ,  F25D17/04 ,  A47F3/04

    Abstract: A state estimation apparatus acquires current information at a power supply part of a refrigeration/freezing facility, derives a degree of change in current information acquired at a state estimation practice time point and derives a degree of change with respect to at least one pair of pieces of current information out of current information acquired at a predetermined time interval before state estimation is practiced, determines whether or not cleaning of the filter of the refrigeration/freezing facility has been practiced, based on the degree of change with respect to at least one pair of pieces of the current information and the degree of change in the current information acquired at the state estimation practice time point.

    MONITORING DEVICE, MONITORING SYSTEM, MONITORING METHOD, AND NON-TRANSITORY STORAGE MEDIUM
    14.
    发明申请
    MONITORING DEVICE, MONITORING SYSTEM, MONITORING METHOD, AND NON-TRANSITORY STORAGE MEDIUM 审中-公开

    公开(公告)号：US20170176503A1

    公开(公告)日：2017-06-22

    申请号：US15300512

    申请日：2015-01-23

    Applicant: NEC Corporation

    Inventor： Eisuke SANEYOSHI ,  Koji KUDO ,  Ryo HASHIMOTO ,  Kosuke HOMMA ,  Takahiro TOIZUMI

    IPC: G01R21/133 ,  G01R21/06

    CPC classification number: G01R21/133 ,  G01R21/06

    Abstract: A monitoring device (10) includes a unit-specific waveform data acquisition unit (11) that acquires waveform data in a unit in which electrical devices are installed; a first inference unit (13) that infers change in operation states of at least some of the electrical devices based on a first monitoring difference group including at least one of at least one kind of feature amount extracted from waveform data of a difference between waveform data of a first timing and waveform data of a second timing in the waveform data, and a differences of at least one kind of feature amounts extracted from the waveform data of the first timing and the waveform data of the second timing, and training difference information regarding a difference between a first operation state and a second operation state of each of the electrical devices; and a second inference unit (14) that infers an operation state of each of the electrical devices based on an inference result of the first inference unit (13).

    MONITORING APPARATUS, MONITORING METHOD, AND STORAGE MEDIUM
    15.
    发明申请
    MONITORING APPARATUS, MONITORING METHOD, AND STORAGE MEDIUM 审中-公开
    监控设备，监控方法和存储介质

    公开(公告)号：US20160154038A1

    公开(公告)日：2016-06-02

    申请号：US14905585

    申请日：2014-07-07

    Applicant: NEC CORPORATION

    Inventor： Takahiro TOIZUMI ,  Eisuke SANEYOSHI ,  Koji KUDO ,  Hitoshi YANO ,  Ryo HASHIMOTO ,  Yuma IWASAKI ,  Hisato SAKUMA

    IPC: G01R21/00 ,  G06Q50/06

    CPC classification number: G01R21/00 ,  G06Q50/06

    Abstract: Provided is a monitoring apparatus including an acquisition unit that acquires first time-series data which is time-series data of a measured value and/or a feature amount regarding an electrical device group, and a registration and updating unit that, when a difference in values between a pre-state-change data value which is any one of a data value at a first point in time in the first time-series data and a statistic of a plurality of data values from a point in time earlier than the first point in time by a predetermined period of time to the first point in time and a post-state-change data value which is any one of a data value at a second point in time later than the first point in time and a statistic of a plurality of data values from the second point in time to a point in time later than the second point in time by a predetermined period of time satisfies a predetermined condition, stores a feature amount extracted from any waveform data of a total current consumption, a total power consumption, and a total input voltage of the electrical device group corresponding to the pre-state-change data value and the post-state-change data value which satisfy the predetermined condition, in a feature amount storage unit.

    Abstract translation: 提供了一种监视装置，包括获取单元，该获取单元获取关于电气设备组的测量值和/或特征量的时间序列数据的第一时间序列数据，以及登记和更新单元， 在第一时间序列数据中的第一时间点的数据值中的任何一个的状态变化前数据值与来自第一时间点之前的时间点的多个数据值的统计量之间的值 在第一时间点的预定时间段内的时间和在第二时间点之后的第二时间点的数据值中的任何一个的后状态变化数据值，以及多个 的数据值从第二时间点到晚于第二时间点的时间点的预定时间段满足预定条件，存储从总电流消耗的任何波形数据中提取的特征量，总计 功率消耗，以及与特征量存储单元中的满足预定条件的状态变化前数据值和后状态变化数据值对应的电气设备组的总输入电压。

    POWER FLOW CONTROL SYSTEM AND POWER FLOW CONTROL METHOD
    16.
    发明申请
    POWER FLOW CONTROL SYSTEM AND POWER FLOW CONTROL METHOD 审中-公开
    功率流量控制系统和功率流量控制方法

    公开(公告)号：US20160006248A1

    公开(公告)日：2016-01-07

    申请号：US14768235

    申请日：2013-12-04

    Applicant: NEC CORPORATION

    Inventor： Hisato SAKUMA ,  Koji KUDO ,  Hitoshi YANO ,  Kazuhiko AOKI ,  Yoshiho YANAGITA ,  Eisuke SANEYOSHI ,  Yuma IWASAKI ,  Ryo HASHIMOTO ,  Takahiro TOIZUMI

    IPC: H02J3/38 ,  F03D9/00 ,  H02J7/35 ,  H02J3/28

    CPC classification number: H02J3/38 ,  F03D9/11 ,  F03D9/257 ,  H02J3/28 ,  H02J3/383 ,  H02J3/46 ,  H02J7/35 ,  H02J13/0006 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E40/72 ,  Y02E60/722 ,  Y02E70/30 ,  Y04S10/123 ,  Y04S10/14

    Abstract: A power flow control system is provided that is capable of improving the reliability of controlling power flow fluctuation and creating wide applicability for systems that control power flow fluctuation. A power-varying device (101) varies the distribution line power amount, which is a value of the power flow that flows in a distribution line (112) to which is connected a plurality of power sources (111) that each generate power. A measurement device (102) measures an index value relating to the total generated power amount, which is the sum total of the amount of power generated by each of the power sources. A calculation device (103) estimates the total generated power amount from the index value, and according to the estimation result, regulates the amount of change in the distribution line power amount that is changed by the power-varying device.

    Abstract translation: 提供一种功率流量控制系统，其能够提高控制电力波动的可靠性，并为控制电力波动的系统产生广泛的适用性。 功率变化装置（101）使分配线路功率量变化，分配线路功率量是连接多个电源（111）的配电线路（112）中流动的功率流的值。 测量装置（102）测量与总发电功率量相关的指标值，其是由每个电源产生的功率量的总和。 计算装置（103）根据指标值估计总发电功率量，并且根据估计结果，调节由功率变化装置改变的配线功率量的变化量。

    STATE ESTIMATION APPARATUS, METHOD, AND PROGRAM STORAGE MEDIUM
    18.
    发明申请
    STATE ESTIMATION APPARATUS, METHOD, AND PROGRAM STORAGE MEDIUM 有权

    公开(公告)号：US20210076846A1

    公开(公告)日：2021-03-18

    申请号：US17042594

    申请日：2019-03-29

    Applicant: NEC Corporation

    Inventor： Eisuke SANEYOSHI

    IPC: A47F3/04 ,  B01D46/00 ,  F25B47/02

    Abstract: A state estimation apparatus comprises a power information acquisition part that acquires time-series data of a power value of a freezer showcase; a power information storage part that stores power information during an intermittent operation of the freezer showcase in a normal state; an evaluation part that evaluates power information during the intermittent operation of the freezer showcase from the time-series data of the power value and derives a degree of difference from the power information during the intermittent operation of the freezer showcase in a normal state; a filter cleaning determination part that estimates how clogged a filter of the freezer showcase is based on the degree of difference and determines whether or not the filter needs to be cleaned; and an output part that provides, for a determination result indicating that the cleaning of the filter is necessary, an output to that effect.

    MONITORING DEVICE, MONITORING SYSTEM, MONITORING METHOD, CORRECTION INFORMATION GENERATION DEVICE, CORRECTION INFORMATION GENERATION METHOD, AND NON-TRANSITORY STORAGE MEDIUM
    19.
    发明申请
    MONITORING DEVICE, MONITORING SYSTEM, MONITORING METHOD, CORRECTION INFORMATION GENERATION DEVICE, CORRECTION INFORMATION GENERATION METHOD, AND NON-TRANSITORY STORAGE MEDIUM 审中-公开

    公开(公告)号：US20200081043A1

    公开(公告)日：2020-03-12

    申请号：US16681427

    申请日：2019-11-12

    Applicant: NEC Corporation

    Inventor： Eisuke SANEYOSHI ,  Takahiro TOIZUMI ,  Kosuke HOMMA ,  Ryo HASHIMOTO ,  Katsuya SUZUKI

    IPC: G01R21/133 ,  G01R19/25

    Abstract: A monitoring device (10) includes a feature amount storage unit (11) that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation; a measured data acquisition unit (12) that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit; a feature amount extraction unit (13) that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit; a correction unit (15) that corrects a first feature amount which is the device feature amount or the measurement feature amount based on unit feature information indicating a feature of the predetermined unit; and a presumption unit (16) that presumes the electrical device being in operation using the corrected first feature amount, and a second feature amount which is the device feature amount or the measurement feature amount, and a different feature amount from the first feature amount.

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