-
公开(公告)号：US20220163582A1
公开(公告)日：2022-05-26
申请号：US17440392
申请日：2019-03-26
Applicant: NEC Corporation
Inventor： Manabu KUSUMOTO
IPC: G01R31/08
Abstract: A fault point locating apparatus according to the present disclosure includes: a frequency characteristic calculation unit configured to calculate frequency characteristics after occurrence of a fault; and a post-fault-occurrence model analysis unit configured to add a model of a fault point to a pre-fault-occurrence model of a power transmission-and-distribution network so as to match the frequency characteristics after the occurrence of the fault and create a post-fault-occurrence model, thereby locating a fault point.
-
2.发明申请公开(公告)号：US20200340882A1
公开(公告)日：2020-10-29
申请号：US16961015
申请日：2019-03-11
Applicant: NEC Corporation
Inventor： Manabu KUSUMOTO
IPC: G01M5/00
Abstract: The pipeline diagnosing device is provided with a simulation executing unit 11 which, on the basis of pipeline information specifying the configuration of a pipeline facility to be diagnosed, executes a simulation of pressure oscillations in a pipeline in the pipeline facility, a fatigue cycle analyzing unit 12 which calculates a fatigue cycle of the pipeline from the pressure oscillation simulation results and measured data of pressure, and an indicator calculating unit 13 which calculates an indicator representing a failure risk of the pipeline, from the fatigue cycle analyzed by the fatigue cycle analyzing unit 12. In this way, a degree of fatigue progress is obtained and a replacement time for the pipeline is estimated from stresses occurring in the pipeline and the number of times stress fluctuations are repeated.
-
3.发明申请公开(公告)号：US20200049595A1
公开(公告)日：2020-02-13
申请号：US16497011
申请日：2018-01-23
Applicant: NEC Corporation
Inventor： Jun SAKAI , Takahiro KUMURA , Manabu KUSUMOTO , Soichiro TAKATA
Abstract: A pipe diagnosis apparatus 10 includes a time-series data acquisition unit 11 that acquires time-series data on pressure of a fluid in piping equipment to be diagnosed, a pressure change measurement unit 12 that measures the number of pressure changes in the fluid from the time-series data on the pressure of the fluid, and a failure risk estimation unit 13 that estimates a failure risk of the piping equipment based on the measured number of pressure changes and a strength of a pipe included in the piping equipment.
-
公开(公告)号：US20200293708A1
公开(公告)日：2020-09-17
申请号：US16086054
申请日：2017-03-17
Applicant: NEC Corporation
Inventor： Manabu KUSUMOTO
IPC: G06F30/367 , G06F30/18 , G06F30/20
Abstract: The purpose of the present invention is to facilitate evaluating the precision of a pipe network model without using flow information. An analysis device according to an embodiment of the present invention comprises a transfer characteristic derivation unit which derives a transfer characteristic which represents a relation between a voltage in a plurality of nodes which are included in an electrical circuit which is a model of a pipe network through which a fluid flows and a voltage in an interior node which is a different node of the electrical circuit from the plurality of nodes, and a computation unit which, on the basis of the transfer characteristic and the pressure of the fluid at positions within the pipe network which correspond to the plurality of nodes, computes the pressure of the fluid at a position within the pipe network which corresponds to the interior node.
-
公开(公告)号：US20190154637A1
公开(公告)日：2019-05-23
申请号：US16098158
申请日：2017-05-11
Applicant: NEC Corporation
Inventor： Manabu KUSUMOTO , Katsumi KIKUCHI , Takahiro KUMURA
Abstract: To acquire information relating to degradation of a pipe on the basis of information that can be acquired using a simple method. The analysis device according to one embodiment is provided with: a determining unit for determining whether or not the accuracy of a pipe network model based on information that includes a parameter that changes in value in accordance with degradation of a pipe satisfies a predetermined criterion; and a derivation unit for deriving information relating to degradation of the pipe, based on the parameter, if the accuracy satisfies the predetermined criterion.
-
Patent Agency Ranking
公开(公告)号：US20170308635A1
公开(公告)日：2017-10-26
申请号：US15520781
申请日：2015-10-20
Applicant: NEC Corporation
Inventor： Manabu KUSUMOTO , Yuichi NAKAMURA , Takahiro KUMURA
CPC classification number: G06F17/5036 , G06F17/13 , G06F17/50 , G06F17/5009 , G06F17/509 , G06F2217/16 , G06F2217/34 , G06F2217/36
Abstract: An apparatus, method and the like which enables to represent a pipe network transporting a fluid by use of electrical circuit network is provided. The pipe network analysis apparatus includes; processing circuitry configured to receive a pipe network model that represents a pipe network being constituted by one or more piping elements, convert at least one piping element to an element of an electric circuit being configured to represent a non-linear relation between a pressure and a flow rate of the fluid in the piping elements by use of a relation between a voltage and a current, and generate a model representing an electric circuit network expressing the pipe network, by use of the element of the electric circuit; and an output device configured to provide the model analyzable by a specific electric circuit simulator.
-
7.发明申请公开(公告)号：US20200378561A1
公开(公告)日：2020-12-03
申请号：US16496524
申请日：2018-01-17
Applicant: NEC Corporation
Inventor： Manabu KUSUMOTO
Abstract: A pipe diagnosis apparatus 10 includes a simulation execution unit 11 that simulates vibrations of pressure in a pipe included in piping equipment to be diagnosed, based on pipe information for specifying a configuration of the piping equipment, and a stress analysis unit 12 that calculates stress that occurs in a pipe included in the piping equipment, based on pressure vibrations acquired through simulation.
-
公开(公告)号：US20200370285A1
公开(公告)日：2020-11-26
申请号：US16636982
申请日：2018-08-02
Applicant: NEC CORPORATION
Inventor： Masatake TAKAHASHI , Manabu KUSUMOTO , Jun SAKAI
IPC: E03B7/07
Abstract: A state analysis device is capable of determining a state of the interior of piping with high precision, and includes: an index calculation means for deriving an index indicating the state of the piping, based on a flow speed of fluid flowing out of the piping, and a fluid pressure of the interior of the piping at two or more locations of the piping; and a determination means for determining the state of the piping, based on the index.
-
9.发明申请公开(公告)号：US20180225843A1
公开(公告)日：2018-08-09
申请号：US15742982
申请日：2016-07-19
Applicant: NEC Corporation
Inventor： Kenichiro FUKUSHI , Manabu KUSUMOTO , Yoshio KAMEDA , Hisashi ISHIDA , Chenpin HSU , Takeo NOZAKI
Abstract: Provided are a reference scale and dimension measurement system that make it possible to maintain accurate measurement even if the reference scale is not disposed or projected on a measurement surface. A dimension measurement device according to the present invention is provided with: a reference scale extraction means for extracting, from photographed image data including a reference scale that includes a film that has a pattern for displaying a length reference formed on the surface thereof and a lens that is in contact with the film, an image in which an image of the length reference is formed on the basis of the relationship between a pattern function expressing the length reference projected onto the lens according to variation in a prescribed angle between the reference scale and the optical axis of a photography device and an image formation color function indicating the image of the length reference formed on the imaging device; an object of measurement extraction means for extracting an object of measurement image from photographed image data including the reference scale; and a dimension calculation means for calculating a dimension of the object of measurement on the basis of a dimension of the image in which the image of the length reference is formed and the image of the object of measurement.
-
公开(公告)号：US20150363538A1
公开(公告)日：2015-12-17
申请号：US14761729
申请日：2014-01-14
Applicant: NEC CORPORATION
Inventor： Masashi OGAWA , Manabu KUSUMOTO , Hisashi ISHIDA
IPC: G06F17/50
CPC classification number: G06F17/5081 , G06F17/5036 , G06F2217/78
Abstract: A design support device having a permissible power supply fluctuation deriving unit and a target impedance deriving unit. The permissible power supply fluctuation deriving unit derives the fluctuation in the power supply voltage that is permissible on the basis of jitter-voltage correlation information, which indicates the correlation between the power supply voltage fluctuation generated in an I/O buffer and the jitter generated by the power supply voltage fluctuations, and jitter constraint information, which is for stably transmitting a signal, for the generated jitter. The target impedance deriving unit derives a target impedance in the permissible range of impedance for a power supply circuit, on the basis of information on the signal operating current flowing through the power supply circuit of the I/O buffer, and the power supply voltage fluctuation.
Abstract translation: 一种具有容许电源波动导出单元和目标阻抗导出单元的设计支持装置。 允许的电源波动导出单元基于抖动电压相关信息导出允许的电源电压的波动，其表示在I / O缓冲器中产生的电源电压波动与由I / O缓冲器产生的抖动之间的相关性 电源电压波动以及用于稳定地发送信号的抖动约束信息，用于产生的抖动。 目标阻抗导出单元基于关于流经I / O缓冲器的电源电路的信号工作电流的信息和电源电压波动的信息，导出电源电路的容许阻抗范围内的目标阻抗 。
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.013 seconds)
