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    PRIVILEGE ISSUING APPARATUS, METHOD, AND COMPUTER-READABLE MEDIUM
    3.
    发明申请
    PRIVILEGE ISSUING APPARATUS, METHOD, AND COMPUTER-READABLE MEDIUM 有权

    公开(公告)号：US20220114687A1

    公开(公告)日：2022-04-14

    申请号：US17430465

    申请日：2019-11-26

    Applicant: NEC Corporation

    Inventor： Akane ARUGA ,  Shigeki SHINODA ,  Takumi OTANI ,  Ikumi SAGA ,  Yuzo SENDA

    IPC: G06Q50/26 ,  G06Q30/02

    Abstract: A scheduled boarding time acquiring unit acquires a scheduled boarding time of an airport user. A security checkpoint arrival time calculating unit calculates, based on the scheduled boarding time, a security checkpoint arrival time at which the airport user arrives at a security checkpoint. A security checkpoint congestion predicting unit acquires a time series prediction of congestion at the security checkpoint. A privilege determining unit determines, based on the security checkpoint arrival time and the time series prediction of congestion at the security checkpoint, privilege information to be issued to the airport user and its validity period. A privilege issuing unit issues, to the airport user, the privilege information determined by the privilege determining unit.

    FLUID LEAKAGE DIAGNOSIS DEVICE, FLUID LEAKAGE DIAGNOSIS SYSTEM, FLUID LEAKAGE DIAGNOSIS METHOD, AND RECORDING MEDIUM STORING FLUID LEAKAGE DIAGNOSIS PROGRAM
    4.
    发明申请
    FLUID LEAKAGE DIAGNOSIS DEVICE, FLUID LEAKAGE DIAGNOSIS SYSTEM, FLUID LEAKAGE DIAGNOSIS METHOD, AND RECORDING MEDIUM STORING FLUID LEAKAGE DIAGNOSIS PROGRAM 有权

    公开(公告)号：US20210262886A1

    公开(公告)日：2021-08-26

    申请号：US17276296

    申请日：2019-09-17

    Applicant: NEC Corporation

    Inventor： Junichiro MATAGA ,  Shigeki SHINODA ,  Katsumi KIKUCHI

    IPC: G01M3/00

    Abstract: A fluid leakage diagnosis device includes: an identification unit for using wave measurement information expressing a wave measured in a pipe to identify a position of an origin of the wave; a detection unit for using structural information of the pipe to detect a structural factor of the wave at the position of the origin identified by the identification unit; a determination unit for determining whether a time shift in the wave measurement information satisfies a condition; and a diagnosis unit for diagnosing fluid leakage in the pipe based on a detection result from the detection unit and a determination result from the determination unit, and this fluid leakage diagnosis device enhances the accuracy of fluid leakage diagnosis for a pipe accomplished through measurement of a wave produced in the pipe.

    ANALYZING DEVICE, ANALYSIS METHOD, AND STORAGE MEDIUM
    7.
    发明申请
    ANALYZING DEVICE, ANALYSIS METHOD, AND STORAGE MEDIUM 有权

    公开(公告)号：US20210164859A1

    公开(公告)日：2021-06-03

    申请号：US16632654

    申请日：2018-07-23

    Applicant: NEC Corporation

    Inventor： Shigeki SHINODA ,  Hirofumi INOUE ,  Takahiro KUMURA ,  Katsumi KIKUCHI

    IPC: G01M3/24 ,  E03B7/00 ,  F17D5/06

    Abstract: Provided are an analyzing device and the like capable of suppressing erroneous determination. This analyzing device is provided with: a cross correlation calculating unit that obtains a cross correlation function with respect to vibrations detected at two points contained in a measurement sector of a pipeline; an estimating unit that estimates a cause of the vibrations, on the basis of the continuity of peaks in the cross correlation function; and an analyzing unit that analyzes the actual generation location of the vibrations and cause of the vibrations on the basis of an estimated generation location of the vibrations and cause of the vibrations and information relating to the configuration of a pipeline network.

    LEAKAGE INSPECTION DEVICE, LEAKAGE INSPECTION METHOD, AND STORAGE MEDIUM
    8.
    发明申请
    LEAKAGE INSPECTION DEVICE, LEAKAGE INSPECTION METHOD, AND STORAGE MEDIUM 有权

    公开(公告)号：US20210116323A1

    公开(公告)日：2021-04-22

    申请号：US17056463

    申请日：2019-06-13

    Applicant: NEC CORPORATION

    Inventor： Shigeki SHINODA ,  Hirofumi INOUE ,  Junichiro MATAGA ,  Takahiro KUMURA ,  Katsumi KIKUCHI

    IPC: G01M3/24 ,  G01M3/22

    Abstract: A leakage inspection device according to an aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: determine a measurement time; measure vibration waveforms for the measurement time by using at least two sensors set to a pipe; calculate a cross-correlation function of the measured vibration waveforms; detect peaks of the cross-correlation function at least twice in the measurement time; and determine that leakage occurs in a case where the peaks are repeatedly detected in the measurement time.

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