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公开(公告)号：US10429828B2
公开(公告)日：2019-10-01
申请号：US15715753
申请日：2017-09-26
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Tatenobu Seki , Mitsuhiro Yamamoto , Yoshihisa Hidaka , Nobuaki Ema
IPC: G05B13/02 , G05B19/418 , G05B17/02 , G05B23/02
Abstract: A plant simulation device includes a first storage that stores a model that models a state of a facility in a plant, a first parameter that is fixed at a start operation of the plant, and a second parameter that is varied during an operation of the plant, the first parameter and the second parameter being set in the model, and a simulator that compares a process value of the facility with a simulated value calculated using the model and that adjusts the first parameter and the second parameter.
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公开(公告)号：US20180088568A1
公开(公告)日：2018-03-29
申请号：US15715753
申请日：2017-09-26
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Tatenobu Seki , Mitsuhiro Yamamoto , Yoshihisa Hidaka , Nobuaki Ema
IPC: G05B19/418
CPC classification number: G05B19/41885 , G05B17/02 , G05B19/41815 , G05B19/4183 , G05B19/41835 , G05B19/41875 , G05B23/0243 , Y02P90/14 , Y02P90/26
Abstract: A plant simulation device includes a first storage that stores a model that models a state of a facility in a plant, a first parameter that is fixed at a start operation of the plant, and a second parameter that is varied during an operation of the plant, the first parameter and the second parameter being set in the model, and a simulator that compares a process value of the facility with a simulated value calculated using the model and that adjusts the first parameter and the second parameter.
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3.发明授权公开(公告)号：US11434724B2
公开(公告)日：2022-09-06
申请号：US17128245
申请日：2020-12-21
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Yoshihisa Hidaka , Nobuo Okabe , Naoki Yoshima
Abstract: To estimate a state of a natural resource in pipeline equipment during extraction in an oil field, provided is an apparatus including a data acquiring section that acquires measurement data, measured by a measurement device, indicating a state of a natural resource that is a fluid flowing through an extraction network for extracting the natural resource; a state estimating section that estimates the state of the natural resource at least at one location differing from a location where the measurement device is provided in a flow path of the extraction network, using the measurement data and a model of the extraction network; and a margin calculating section that calculates a margin until flow path blocking matter is generated in the extraction network, based on the estimated state of the natural resource.
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公开(公告)号：US10788820B2
公开(公告)日：2020-09-29
申请号：US15703341
申请日：2017-09-13
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Tatenobu Seki , Mitsuhiro Yamamoto , Yoshihisa Hidaka , Nobuaki Ema
Abstract: A plant state displaying apparatus displaying information representing a state of a plant includes a generator that: acquires plant information from at least one of devices, apparatuses, and facilities installed in the plant; calculates a state value representing the state of the plant using the plant information; and generates a plant state diagram in which at least one of a color and a density of at least one of devices, apparatuses, and facilities from which the plant information is acquired is changed according to magnitude of the state value; and a display that displays the plant state diagram generated by the generator as the information representing the state of the plant.
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公开(公告)号：US10520934B2
公开(公告)日：2019-12-31
申请号：US15417365
申请日：2017-01-27
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Tatenobu Seki , Mitsuhiro Yamamoto , Yoshihisa Hidaka , Nobuaki Ema
Abstract: A plant performance evaluation apparatus includes a first storage storing a first static model indicating a model of a first steady state in a plant, a second storage storing a first dynamic model indicating a model of a dynamic state of the plant, a model converter configured to convert the first dynamic model to a second static model indicating a model of a second steady state of the plant, and to store the second static model into the first storage, the first steady state indicating a steady state of the plant temporally before the second steady state, a comparator configured to compare parameters included in the first static model with parameters included in the second static model and to output a comparison result, and a display configured to display the comparison result output from the comparator.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180081350A1
公开(公告)日：2018-03-22
申请号：US15703341
申请日：2017-09-13
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Tatenobu Seki , Mitsuhiro Yamamoto , Yoshihisa Hidaka , Nobuaki Ema
IPC: G05B23/02
Abstract: A plant state displaying apparatus displaying information representing a state of a plant includes a generator that: acquires plant information from at least one of devices, apparatuses, and facilities installed in the plant; calculates a state value representing the state of the plant using the plant information; and generates a plant state diagram in which at least one of a color and a density of at least one of devices, apparatuses, and facilities from which the plant information is acquired is changed according to magnitude of the state value; and a display that displays the plant state diagram generated by the generator as the information representing the state of the plant.
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公开(公告)号：US11460818B2
公开(公告)日：2022-10-04
申请号：US16551725
申请日：2019-08-27
Applicant: Yokogawa Electric Corporation
Inventor： Tatenobu Seki , Nobuaki Ema , Yoshihisa Hidaka
IPC: G05B13/04 , G05B19/042 , G05B19/418
Abstract: An evaluation apparatus includes a storage unit that stores a model modeling a state of a facility provided in a plant, a simulator that adjusts a parameter that is set in the model so that a difference between an actual measurement value based on a process value of the facility in a first state and a first simulate value calculated by using the model is equal to or less than a threshold, and an estimation unit that estimates a first estimated operating point that indicates an operation state of the facility in the first state based on the adjusted parameter.
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公开(公告)号：US11150182B2
公开(公告)日：2021-10-19
申请号：US16648058
申请日：2018-09-05
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Yoshihisa Hidaka , Gen Matsuno , Shigeru Takezawa , Hideko Tanaka , Kaori Sakuma , Akihiro Murata , Toshiki Ohara
IPC: G01N21/359 , G01N1/24 , G01N21/3504 , G01N21/3577 , G01N21/85
Abstract: A method for testing an analysis apparatus that analyzes a first fluid flowing through a pipe using light that has passed through a probe attached to and disposed inside the pipe such that a portion of a light path passes outside a housing of the probe. The method includes: after a second fluid that absorbs less of the light than the first fluid has been introduced into the pipe, introducing a third fluid having predetermined absorption characteristics into the housing of the probe; and analyzing the absorption characteristics of the third fluid using the light that has passed through the probe.
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公开(公告)号：US20200256792A1
公开(公告)日：2020-08-13
申请号：US16648058
申请日：2018-09-05
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Yoshihisa Hidaka , Gen Matsuno , Shigeru Takezawa , Hideko Tanaka , Kaori Sakuma , Akihiro Murata , Toshiki Ohara
IPC: G01N21/359 , G01N21/85 , G01N21/3577 , G01N21/3504 , G01N1/24
Abstract: A method for testing an analysis apparatus that analyzes a first fluid flowing through a pipe using light that has passed through a probe attached to and disposed inside the pipe such that a portion of a light path passes outside a housing of the probe. The method includes: after a second fluid that absorbs less of the light than the first fluid has been introduced into the pipe, introducing a third fluid having predetermined absorption characteristics into the housing of the probe; and analyzing the absorption characteristics of the third fluid using the light that has passed through the probe.
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公开(公告)号：US10605724B2
公开(公告)日：2020-03-31
申请号：US15161359
申请日：2016-05-23
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Shigeru Takezawa , Takuya Yahagi , Yoshihisa Hidaka
Abstract: A multi-component gas analysis system includes a spectrometric analysis device configured to obtain ratio of each of first components in a multi-component gas based on an absorption spectrum of light that has transmitted through the multi-component gas; a density measurement device configured to measure a first density of the multi-component gas; and a calculation device configured to calculate a ratio of each of second components in the multi-component gas using the ratio of each of the first components obtained by the spectrometric analysis device and the first density measured by the density measurement device, the second components being components that cannot be obtained by the spectrometric analysis device.
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