Nec Corporation

Manabu Kusumoto

Naoki Kobayashi

Hiroshi Toyao

Hisashi Ishida

Noriaki Ando

Masashi Ogawa

Yoshio Kameda

Takahiro Kumura

Takeo Nozaki

Masashi Kawakami

Katsumi Kikuchi

Yuichi Nakamura

Jun Sakai

Masatake Takahashi

Kenichiro Fukushi

Satoshi Morinaga

Soichiro Takata

Ken Morishita

Kenta Tsukamoto

Naoki Natsume

Chenpin Hsu

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.

State analysis device, state analysis method, and recording medium

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.

Pipe diagnosis apparatus, asset management apparatus, pipe diagnosis method, and computer-readable recording medium

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.

Analysis device, analysis method, and recording medium storing a program for deriving information relating to degradation of a pipe

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.

Analysis device, analysis method, and storage medium which stores program

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.

Dimension measurement device, dimension measurement system, and dimension measurement method

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.

Pipe network analysis apparatus, pipe network analysis method, and storage medium

An information processing device according to the present invention, includes: an information accumulation unit which receives and accumulates control-target information that includes information related to a control target and an environment including the control target; a prediction-equation-set learning and generation unit which learns and generates a prediction-equation set to be used for determination of an operation quantity of the control target based on the control-target information accumulated in the information accumulation unit; and an operation-quantity determination unit which receives input information needed for determination of an operation quantity of the control target, constructs a predictive-control model of the control target based on the prediction-equation set, the control-target information accumulated in the information accumulation unit, the control-target information received, and the input information, and determines an operation quantity used for control of the control target.

Information processing device, predictive control method, and recording medium

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.

Support device, design support method, and program

Provided are an EMI characteristic derivation unit which derives an EMI characteristic radiated from a cable based on design information of a circuit board connected with the cable; a determination standard database which stores an EMI tolerance condition which is a tolerance condition for the EMI characteristic; an EMI condition determination unit which determines whether the EMI characteristic satisfies the EMI tolerance condition; an improvement effect database which stores a modification guideline to modify a configuration of the circuit board necessary to satisfy the EMI tolerance condition when the EMI characteristic does not satisfy the EMI tolerance condition and an improvement effect corresponding to the modification guideline; a restriction item database which stores a restriction item applied when the configuration of the board is modified; and a configuration modification unit which performs the configuration modification of the board in accordance with the modification guideline and the restriction item.

Board design method and board design device

A condition input device inputs a measurement condition and the information of an electronic apparatus to be measured. A measurement operation program device selects a program that causes the electronic apparatus to perform an measurement operation based on the information of a measuring target object and the measurement condition. A voltage measurement device measures a voltage variation generated by the power source of the electronic apparatus. A wave form calculating device performs an arithmetic processing, such as a filtering processing or a time-frequency conversion (e.g. Fourier conversion) for the measured voltage variation to obtain the frequency characteristics of the voltage variation. An impedance calculating device calculates an impedance from the frequency characteristics of the voltage variation and the frequency characteristics of current and the condition of the measurement operation program.

Impedance measurement system, impedance measurement method and program

A via disposition information acquiring unit acquires via disposition information indicating a disposition of the plurality of first vias (). A second conductor information acquiring unit acquires second conductor information indicating disposition positions of a plurality of second conductors () repeatedly disposed in the second conductor layer (). A via extracting unit extracts an extraction via with respect to each of the plurality of second conductors (). The extraction via is each of the first vias () overlapping the second conductor (). A via selecting unit selects a selection via with respect to each of the plurality of second conductors (). The selection via is each of first vias () selected in a predetermined number from the extraction vias. An opening introducing unit introduces a first opening () to each of the plurality of second conductors (). The first opening () overlaps the extraction via not selected by the via selecting unit in plan view.

Interconnection substrate design supporting device, method of designing interconnection substrate, program, and interconnection substrate

An electronic apparatus () has an electronic device (), a power supply plane () and a power supply plane () disposed with a gap () therebetween, a connection member () that electrically connects the power supply plane () and the electronic device (), a ground plane () facing the power supply plane () or the power supply plane (), a connection member () that electrically connects the ground plane () and the electronic device (), a plurality of conductor elements () that is repeatedly arrayed, and open stubs () formed at a location overlapping the gap () included in an area surrounded by the conductor elements (). In addition, at least some of the open stubs () face the power supply plane () which is not in contact with the open stubs ().

Interconnect board and electronic apparatus

A wiring board includes a metal cap pad that is arranged so as to surround a mounting position of an electronic component and is connected to an end portion of a metal cap, a power source plane that is connected to the electronic component through a connection member and has a gap, a ground plane that is connected to the electronic component through a connection member, and a plurality of conductive body elements that are repeatedly arranged so as to surround the connection members and the gap. The power source plane and the ground plane extend so as to include at least a part of an area that is surrounded by the plurality of conductive body elements and at least a part of an area facing the plurality of conductive body elements.

Electronic device, wiring board, and method of shielding noise

An electromagnetic wave discrimination device according to the present invention discriminates electromagnetic waves, and includes an acquisition section, a feature quantity calculation section, a similarity calculation section, a classification section, a discrimination section, an output section, and a storage section. The acquisition section receives communication signals of a predetermined frequency, and samples waveform data of the communication signals every predetermined time to obtain sample data for each predetermined time. The feature quantity calculation section calculates amplitude feature quantities for each predetermined time, based on the sampling data for each predetermined time. The similarity calculation section calculates degrees of similarity with respect to the amplitude feature quantities for each predetermined time. The classification section classifies the communication signals for each predetermined time into clusters to obtain cluster analysis results of the communication signals for each predetermined time, based on the degrees of similarity. The discrimination section discriminates communication signals constituting one cluster for each of the clusters to obtain discrimination results, based on the cluster analysis results of the communication signals for each predetermined time. The output section outputs the discrimination results. The storage section stores the amplitude feature quantities, the degrees of similarity, the cluster analysis results, and the discrimination results.

Electromagnetic wave discrimination device, electromagnetic wave discrimination method, and electromagnetic wave discrimination program

A power-supply design system for designing a power supply of electronic equipment apparatuses. The system includes an input device for inputting circuit information about the power supply of the electronic equipment apparatus; a current deviation computation unit that computes an electric current deviation which indicates electric current variation of the electronic equipment apparatus, based on the circuit information input using the input device, and dispersion information that indicates a dispersion of an electric current variation, which corresponds to the circuit information; a target impedance computation unit that computes a target impedance as a target for the power supply indicated by the circuit information, based on the electric current deviation computed by the current deviation computation unit and a permissible range of a voltage variation, where the permissible range is indicated by the circuit information; and an output device that outputs the target impedance computed by the target impedance computation unit.

Growing community of inventors

Tokyo, Japan

Manabu Kusumoto