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公开(公告)号：US11067612B2
公开(公告)日：2021-07-20
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: G01R1/02 , 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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公开(公告)号：US10712374B2
公开(公告)日：2020-07-14
申请号：US15562540
申请日：2016-01-08
Applicant: NEC CORPORATION
Inventor： Takahiro Toizumi , Eisuke Saneyoshi , Ryota Suzuki , Shigeru Koumoto
Abstract: As means for solving the above-described problem, there is provided a data processing device (1) including a measurement data acquisition unit (10) that acquires measurement data indicating a temporal change in at least one of current consumption and power consumption of an electrical apparatus, a reference component extraction unit (20) that extracts a reference component of the current consumption and a reference component of the power consumption from the measurement data, and a feature value acquisition unit (30) that acquires a feature value of each reference component.
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公开(公告)号：US10466283B2
公开(公告)日：2019-11-05
申请号：US15300531
申请日：2015-03-17
Applicant: NEC Corporation
Inventor： Kosuke Homma , Eisuke Saneyoshi , Ryo Hashimoto , Takahiro Toizumi
IPC: G01R21/133 , G06F17/18 , G05B23/02 , G05B9/02 , G01R19/25 , G06F15/18 , G05B19/042 , G06N20/00 , G01D4/00
Abstract: A training data generation device (10) includes: a measurement data acquisition unit (11) that acquires measurement data including waveform data including at least one of a current consumption waveform, an input voltage waveform, and a power consumption waveform along a time axis of an electrical device and power consumption value data indicating time-series power consumption values of the electrical device; an analysis unit (12) that analyzes a rate of occurrence of each power consumption value using the power consumption value data; a specifying unit (13) that specifies one or more specific power consumption value bands including a power consumption value with the higher rate of occurrence than that of a standard power consumption value and having a predetermined power value width; a feature amount extraction unit (14) that determines a representative power value for each specific power consumption value band and extracts a feature amount using the waveform data; and a storage unit (15) that stores a pair of the representative power value determined based on each specific power consumption value band and a training feature amount which is the feature amount in association with the electrical device.
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4.发明授权公开(公告)号：US09946286B2
公开(公告)日：2018-04-17
申请号：US14429494
申请日：2013-09-20
Applicant: NEC Corporation
Inventor： Ryo Hashimoto , Hitoshi Yano , Hisato Sakuma , Koji Kudo , Eisuke Saneyoshi , Yuma Iwasaki , Takahiro Toizumi
CPC classification number: G05F1/66 , B60L11/1824 , B60L11/1844 , B60L2230/40 , B60L2240/70 , B60L2240/80 , G05B15/02 , G06Q50/06 , H02J3/14 , H02J3/32 , Y02E60/721 , Y02T10/7005 , Y02T10/7088 , Y02T10/7291 , Y02T90/121 , Y02T90/128 , Y02T90/14 , Y02T90/16 , Y02T90/163 , Y04S10/126 , Y04S10/60
Abstract: A time point range setting unit (110) sets an operation startable time point when an operation is startable, and an operation end target time point which is a latest time point among time points when the operation is to be ended, with respect to each of plural power-consuming bodies (20). A necessary operation time setting unit (120) sets a necessary operation time with respect to each of the plural power-consuming bodies (20). A shape information obtaining unit (130) obtains shape information from a schedule management apparatus (40). The shape information represents an assumed shape of a transition line indicating transition in the amount of power supplied in a target period. A demand transition setting unit (140) determines power demand transition information indicating transition in electrical energy demand in the target period so that the necessary operation time is obtained and the transition in the electrical energy demand generated by the plural power-consuming bodies (20) being operated follows the assumed shape.
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公开(公告)号：US09912157B2
公开(公告)日：2018-03-06
申请号：US14769032
申请日：2013-12-17
Applicant: NEC Corporation
Inventor： Hitoshi Yano , Ryo Hashimoto , Yuma Iwasaki , Eisuke Saneyoshi , Hisato Sakuma , Koji Kudo
CPC classification number: H02J3/32 , H02J7/007 , H02J13/0062 , H02J13/0072 , Y02E60/722 , Y02E60/7838 , Y02E60/7846 , Y04S10/14 , Y04S40/124 , Y04S40/125
Abstract: An energy management system and an energy management method enable an improvement of the balance between power supply and demand. A storage battery (52) is connected to a power line (42) that transmits outside power. A storage battery controller (54) receives a control signal indicating a reduced use period during which the consumption of the outside power by a consumer apparatus (43) connected to the power line (42) is to be reduced, acquires an index value that has a correlation with the demand for outside power, and on the basis of the control signal and the index value, adjusts the amount of charging/discharging of the storage battery (52).
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Patent Agency Ranking
公开(公告)号：US12070137B2
公开(公告)日：2024-08-27
申请号：US17042594
申请日：2019-03-29
Applicant: NEC Corporation
Inventor： Eisuke Saneyoshi
CPC classification number: A47F3/0478 , B01D46/0086 , F25B47/025 , B01D2279/50 , F25B2700/15
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.
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公开(公告)号：US11486915B2
公开(公告)日：2022-11-01
申请号：US16629650
申请日：2018-07-17
Applicant: NEC Corporation
Inventor： Eisuke Saneyoshi , Shigeru Koumoto , Akira Shoujiguchi
IPC: G01R19/25
Abstract: A state estimation apparatus is configured to extract a time interval to be analyzed from a time series of a first signal based on a second signal acquired in conjunction with the first signal relating to the operation of the facility, and estimate a change in a state of the facility based on waveform data of the time interval of the first signal.
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公开(公告)号：US11263859B2
公开(公告)日：2022-03-01
申请号：US16634662
申请日：2017-08-02
Applicant: NEC Corporation
Inventor： Yuko Ohta , Shingo Takahashi , Eisuke Saneyoshi , Junichi Miyamoto , Shigeru Koumoto
Abstract: A maintenance monitoring apparatus includes: a maintenance management part that manages, based on a monitoring result of a current or power of a vending machine that provides a beverage by extracting the beverage from a raw material, whether an operation performed on the vending machine is a predetermined maintenance operation and whether the maintenance has been executed at an appropriate time interval and as many times as necessary; and a notification part that notifies that a maintenance has been executed or not.
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公开(公告)号：US11865483B2
公开(公告)日：2024-01-09
申请号：US17417479
申请日：2018-12-26
Applicant: NEC Corporation
Inventor： Eisuke Saneyoshi
CPC classification number: B01D46/0086 , A47F3/0478 , F25D17/042
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.
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公开(公告)号：US11358086B2
公开(公告)日：2022-06-14
申请号：US17041825
申请日：2018-03-30
Applicant: NEC Corporation
Inventor： Eisuke Saneyoshi
IPC: F25D29/00 , G05B1/01 , G05B17/00 , G05B6/02 , G05B21/00 , G05B23/02 , G05B9/02 , B01D46/00 , F25B49/00 , F25D23/00
Abstract: A state estimation apparatus includes: a current information acquisition part that acquires information about a current at a power supply part of a refrigerating/freezing apparatus; a current information storage part that holds current information in a normal state of the refrigerating/freezing apparatus; an evaluation part that derives a degree of change based on the acquired current information and the current information in the normal state of the refrigerating/freezing apparatus; a filter cleaning determination part that estimates a clogging state of a filter of the refrigerating/freezing apparatus based on the degree of change to determine whether cleaning of the filter is necessary; and an output part that provides, for a determination result indicating that the cleaning of the filter is necessary, an output to that effect.
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