SOUND CONVERSION DEVICE
    1.
    发明公开

    公开(公告)号:US20240357287A1

    公开(公告)日:2024-10-24

    申请号:US18761633

    申请日:2024-07-02

    申请人: DENSO CORPORATION

    IPC分类号: H04R3/04 G01M99/00

    摘要: A sound conversion device includes a sound acquisition circuit that acquires the operation sound including abnormal sound as a sound pressure time signal that is a signal indicating a change in sound pressure intensity over time, a signal conversion circuit that converts a signal corresponding to the sound pressure time signal into a frequency characteristic indicating an intensity of sound pressure for each frequency including a human inaudible frequency band, obtains audible signal in which the frequency of the abnormal sound signal indicating the intensity of the sound pressure of the abnormal sound in the inaudible frequency band is changed to a human audible frequency band in the signal corresponding to the frequency characteristic, and output the audible signal as an audible sound signal that is a signal indicating a change in sound pressure intensity over time, and a speaker that generates sound based on the audible sound signal.

    Method For Estimating A Future Value Of A Physical Quantity Of An Industrial System Such As A Nuclear Reactor

    公开(公告)号:US20240282472A1

    公开(公告)日:2024-08-22

    申请号:US18380899

    申请日:2023-10-17

    IPC分类号: G21C17/02 G01M99/00

    CPC分类号: G21C17/02 G01M99/005

    摘要: A method for estimating a quantity of a system includes the following steps:



    for each variable of a plurality of variables, obtaining a sequence of successive measurements,
    determining a sequence of successive values of a stability parameter, the parameter being a weighted sum of rates of variation of the variables,
    identifying a time interval in which the stability parameter is less than or equal to a predetermined threshold for a duration greater than or equal to a predetermined duration,
    estimating a sequence of successive estimates of a particular variable, a start time of the sequence being included in the time interval,
    comparing the sequence of estimates and the sequence of measurements, in order to determine an adjustment parameter, and
    estimating the physical quantity of the system using the adjustment parameter.

    ROBUST PREDICTIVE MAINTENANCE METHOD FOR MACHINERY USING MEASURED VIBRATION DATA AND ESTIMATED SOUND DATA

    公开(公告)号:US20240264045A1

    公开(公告)日:2024-08-08

    申请号:US18105588

    申请日:2023-02-03

    申请人: Hitachi, Ltd.

    发明人: Akira INOUE

    IPC分类号: G01M99/00 H04R3/00

    CPC分类号: G01M99/005 H04R3/00

    摘要: In example implementations described herein, there are systems and methods for performing predictive maintenance which can include collecting vibration data related to an operation of a first machine during a first time period, computing sound data related to the operation of the first machine during the first time period based on the collected vibration data, and predicting, based on the computed sound data, at least one value associated with a maintenance of the first machine. In some aspects, the systems and methods may further include measuring an acoustic transfer function relating the vibration data related to the operation of the first machine to one or more of the sound pressure data or the particle velocity data.

    SOUND DIAGNOSIS SYSTEM, SOUND DIAGNOSIS METHOD, AND SOUND DIAGNOSIS PROGRAM

    公开(公告)号:US20240255387A1

    公开(公告)日:2024-08-01

    申请号:US18404367

    申请日:2024-01-04

    发明人: KENJI ONO

    IPC分类号: G01M99/00

    CPC分类号: G01M99/005

    摘要: A sound diagnosis system includes: a sound collector acquiring a sound emitted by a device; a total sound pressure calculator that analyzes a sampling result of the sound and calculates a total sound pressure of a sound of each frequency included in each timing of the sampling result; a peak detector that detects a plurality of peak timings from the total sound pressure; a peak classifier that clusters the plurality of peak timings; a cycle calculator that calculates a cycle of a sound included in each cluster based on the frequency and/or each total sound pressure; a region identifier that identifies at least one component that emits a sound having a cycle close to any of cycles of sounds included in each cluster; and a display that displays the at least one identified component.

    Management of connected sensor devices

    公开(公告)号:US12047450B1

    公开(公告)日:2024-07-23

    申请号:US17390811

    申请日:2021-07-30

    申请人: SPLUNK INC.

    摘要: Various embodiments of the present application set forth a computer-implemented method that includes receiving a device identifier associated with a sensor device, wherein the device identifier is receivable from a location proximal to the sensor device, assigning the device identifier to a first application executing in a first network, wherein data from the sensor device is transmitted to the first application, and transmitting, to a server, an indication of the assignment of the device identifier to the first application, wherein the server stores the assignment in conjunction with a security configuration associated with the sensor device.