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公开(公告)号：US20230004139A1
公开(公告)日：2023-01-05
申请号：US17781460
申请日：2020-10-07
Applicant: HITACHI, LTD.
Inventor： Yuya TOKUDA , Takuya YOSHIDA
IPC: G05B19/406
Abstract: A processing device (40) has: a plant control unit (24) that obtains, from an inputted process value (11), a manipulated variable (25) to be outputted in accordance with a control rule (22) and that outputs the manipulated variable to plant equipment; a monitoring necessity determination unit (34) that obtains, from the inputted process value (11), a monitoring level to be outputted in accordance with a monitoring condition signal (32) and that notifies a plant operator of the monitoring level; and a monitoring condition learning unit (31) that, when history data of the process value (11) is inputted as learning data, causes a monitoring condition storage unit (33) to store the monitoring condition signal (32) associated with the monitoring level with respect to a range of a current process value (11) on the basis of a probability of transition from the current process value (11) to a future process value (11).
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2.发明申请公开(公告)号：US20180189621A1
公开(公告)日：2018-07-05
申请号：US15740101
申请日：2016-06-29
Applicant: HITACHI, LTD.
Inventor： Yuya TOKUDA , Tomotoshi ISHIDA
CPC classification number: G06K19/0717 , G01K11/12 , G06K7/1434 , G06K19/06 , G06K19/0614 , G06Q10/087
Abstract: The purpose of the present invention is to enable a machine-read mark to also determine, with high probability, a management state to be normal when a visual mark has determined the management state to be normal, in cases when the visual mark and the machine-read mark, which are provided with a sensor function for detecting an abnormality in the same management state, are present on one product, even if there is variation in the quality of the marks. At least two barcodes or marks for managing the safety of one and the same product are provided. The barcodes and marks are provided with a function with which the safety of the product is confirmed as a result of a change in a property thereof, such as the color or shape, caused by an external factor that may reduce the safety of the product. The at least two barcodes or marks are provided with the function with which the safety of the product is confirmed as a result of a change in a property thereof caused by the same external factor. The at least two barcodes or marks having properties which change as a result of the same external factor are provided with at least two threshold values which determine that the safety of the same product has reduced.
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公开(公告)号：US20200056908A1
公开(公告)日：2020-02-20
申请号：US16500753
申请日：2018-03-06
Applicant: Hitachi, Ltd.
Inventor： Shunsuke MORI , Kohhei AIDA , Masahiro KAWASAKI , Yuya TOKUDA
Abstract: This marking system is provided with: a marking device which has a marking unit which gives a mark for managing the quality of a product, a housing part which houses one or more temperature indicating materials, and a providing unit which provides, to the marking unit, a temperature indicating material selected by the housing part; and a control device which has a storage unit that stores temperature-indicating material information on a developing temperature or/and a decoloring temperature of each of the temperature-indicating materials included in the housing part; and a processing unit that acquires, from a server or an input unit, an appropriate temperature of the product, selects, on the basis of the acquired appropriate temperature of the product and the temperature-indicating material information, a temperature-indicating material, and notifies the providing unit of details of providing the selected temperature-indicating material.
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4.发明申请公开(公告)号：US20190219454A1
公开(公告)日：2019-07-18
申请号：US16304702
申请日：2017-04-13
Applicant: Hitachi, Ltd.
Inventor： Yuya TOKUDA , Tomotoshi ISHIDA
Abstract: The purpose of the present invention is to provide an environment history display object whereby a storage environment history including time can easily be grasped. In order to solve the above problem, the environment history display object pertaining to the present invention is capable of determining the presence/absence of deviation from a management environment, and is characterized by being provided with a plurality of display parts having a plurality of marks for irreversibly changing color upon leaving a set environment range, the times taken for the plurality of marks to change color after leaving the environment range being mutually different, and the environment range being different for each display part.
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公开(公告)号：US20250005409A1
公开(公告)日：2025-01-02
申请号：US18710297
申请日：2022-10-25
Applicant: HITACHI, LTD.
Inventor： Yuya TOKUDA , Tatsurou YASHIKI , Takuya YOSHIDA
Abstract: A storage device stores a state transition model in which a first state transition probability (state transition probability function τ), which indicates the probability that a prediction subject will transition from a first state s to a second state s′ after a first time (Δt) has elapsed, is expressed by a linear combination of weighted basis functions (model storage unit). A computation device calculates a second state transition probability (attenuation-type state transition probability function D), which indicates the probability that the prediction subject will transition from the first state s to the second state s′ after a second time (Δt×∞) has elapsed, by means of a product-sum computation of a weight matrix ∇ representing a matrix the elements of which are the respective weights of the weighted basis functions (future state prediction computation unit).
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Patent Agency Ranking
公开(公告)号：US20200158579A1
公开(公告)日：2020-05-21
申请号：US16619841
申请日：2018-03-07
Applicant: HITACHI, LTD.
Inventor： Yuya TOKUDA , Kohhei AIDA , Shunsuke MORI , Masahiro KAWASAKI
Abstract: The temperature evaluation system is provided with: a read-in device that acquires image data pertaining to the indicator; a storage device that stores the relationship between color density and temperature for each thermosensitive material; and a processing device provided with a color density estimation unit that estimates the color density of the thermosensitive material from the image data, a material identification unit that specifies the thermosensitive material used in the indicator, and a temperature estimation unit that selects, from among the relationships between color density and temperature for each thermosensitive material, the relationship between color density and temperature of the thermosensitive material specified by the material identification unit, and that estimates the highest temperature reached or the lowest temperature reached from the relationship between color density and temperature of the specified thermosensitive material and the color density estimated by the color density estimation unit.
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公开(公告)号：US20190210806A1
公开(公告)日：2019-07-11
申请号：US16324116
申请日：2017-06-30
Applicant: HITACHI, LTD.
Inventor： Kohhei AIDA , Masahiro KAWASAKI , Shunsuke MORI , Hiroshi SASAKI , Yuya TOKUDA
IPC: B65G1/137
Abstract: A quality control system includes a control device, an output device, and an input device placed at at least an end point of a distribution channel of articles; the input device includes an input unit for receiving data on a changed environment portion and a communication unit that transmits the data, information about an input location, and an input time to the control device. The control device includes a storage unit for storing the mode of packing of the articles in the distribution channel, a reception unit for receiving the information from the input device, an arithmetic operation unit that calculates the number of articles deviating from the storage environment and estimates the stage of the distribution channel deviating from the storage environment, and a transmission unit for transmitting calculation result to the output device that is provided with a display unit.
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8.发明申请公开(公告)号：US20180189535A1
公开(公告)日：2018-07-05
申请号：US15580509
申请日：2015-06-26
Applicant: Hitachi, Ltd.
Inventor： Tomotoshi ISHIDA , Yuya TOKUDA , Kohhei AIDA
Abstract: Provided is means for obtaining required data, despite there being only one kind of reading device or one kind of reading method for a plurality of item types. The present invention comprises: means for reading a barcode and a change-in-environment part; means for extracting, from the barcode which has been read, data pertaining to the change-in-environment part; and means for recognizing change-in-environment data on the basis of the data pertaining to the change-in-environment part. Further, an item has a change-in-environment part and a barcode which contains the data relating to the change-in-environment part.
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公开(公告)号：US20230400821A1
公开(公告)日：2023-12-14
申请号：US18035771
申请日：2021-08-30
Applicant: HITACHI, LTD.
Inventor： Takaaki SEKIAI , Yuya TOKUDA , Takuya YOSHIDA
IPC: G05B13/04
CPC classification number: G05B13/048
Abstract: This control device 10 comprises a model construction unit 11 that constructs a model for simulating a control object 20, a problem subdivision unit 12 that subdivides the model constructed by the model construction unit 11, a control measure calculation unit 13 that predicts the future status of the control object 20 using the model subdivided by the problem subdivision unit 12 and that calculates a control measure for the control object 20 on the basis of the predicted future status, and an operation command generation unit 14 that generates operation commands to the control object 20 on the basis of the control measure calculated by the control measure calculation unit 13.
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10.发明申请公开(公告)号：US20220326694A1
公开(公告)日：2022-10-13
申请号：US17635805
申请日：2021-02-08
Applicant: Hitachi, Ltd.
Inventor： Yuya TOKUDA
IPC: G05B19/418
Abstract: The purpose of the present invention is to provide a plant operation optimization assistance device, a plant operation optimization control device, and a method, which enable a reduction in computational load. The plant operation optimization assistance device is characterized by comprising: an input unit for inputting, as an input signal, an operation amount signal assigned to a plant and a process signal detected at the plant; a sensitivity estimation unit for taking, as a sensitivity signal, a time change amount of the process signal with respect to the operation amount signal; and a signal classification unit for sorting operational states of the plant from the input signal and giving an operational state signal, and also extracting, as a state-specific high-sensitivity signal, a sensitivity signal indicating high-sensitivity, from among sensitivity signals, for each of the sorted operational states.
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