公开(公告)号：US20250027834A1

公开(公告)日：2025-01-23

申请号：US18587783

申请日：2024-02-26

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidefumi TAKAMINE ,  Takashi USUI ,  Kazuo WATABE

IPC: G01M5/00 ,  G08G1/01

Abstract: According to one embodiment, a structure evaluation system according to an embodiment includes a plurality of sensors, a vehicle number estimator, and an evaluator. The plurality of sensors detect elastic waves generated inside a structure. The vehicle number estimator estimates the number of vehicles passing through the structure on the basis of a plurality of elastic waves detected by each of the plurality of sensors. The evaluator evaluates a state of deterioration of the structure using vehicle information relating to the number of vehicles estimated by the vehicle number estimator.

公开(公告)号：US20240094165A1

公开(公告)日：2024-03-21

申请号：US18174228

申请日：2023-02-24

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuki UEDA ,  Takashi USUI

IPC: G01N29/07 ,  G01N29/12

CPC classification number: G01N29/07 ,  G01N29/12

Abstract: According to one embodiment, a structure evaluation system of an embodiment includes one or more sensors, a signal processing apparatus, and an evaluator. The plurality of sensors detect elastic waves generated from a structure. The signal processing apparatus calculates information on a frequency distribution by amplitude scale based on the plurality of elastic waves detected by each of the one or more sensors, and transmits the calculated information on the frequency distribution by amplitude scale in a wireless manner. The evaluator evaluates a state of deterioration of the structure based on the information on the frequency distribution by amplitude scale which is transmitted from the signal processing apparatus.

公开(公告)号：US20230082439A1

公开(公告)日：2023-03-16

申请号：US17653504

申请日：2022-03-04

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takashi USUI

IPC: G01N29/04 ,  G01N29/07

Abstract: According to one embodiment, an inspection system of an embodiment includes one or more sensors. The one or more sensors detect second elastic waves emitted to the outside of a shaft-shaped inspection object due to first elastic waves propagating through the shaft-shaped inspection object. The one or more sensors are fixedly placed at positions away from the shaft-shaped inspection object and the directivity direction of the sensor is inclined at a predetermined angle with respect to an axial line of the shaft-shaped inspection object.

公开(公告)号：US20230078350A1

公开(公告)日：2023-03-16

申请号：US17653501

申请日：2022-03-04

Applicant: Kabushiki Kaisha Toshiba

Inventor： Keisuke UENO ,  Takashi USUI ,  Kazuo WATABE

IPC: G01N29/14

Abstract: According to one embodiment, a corrosion determination system according to an embodiment includes one or more sensors, an index data acquirer, and a corrosion determiner Elastic waves generated from a structure including at least a member that generates elastic waves due to corrosion are detected. The index data acquirer acquires index data that is an index of an amount of water on the surface of the structure. The corrosion determiner determines whether there is corrosion in the structure based on elastic waves generated due to corrosion identified based on the index data among a plurality of elastic waves detected by the one or more sensors.

公开(公告)号：US20220334082A1

公开(公告)日：2022-10-20

申请号：US17653493

申请日：2022-03-04

Applicant: Kabushiki Kaisha Toshiba

Inventor： Toshiki TAKAYASU ,  Takashi USUI ,  Kazuo WATABE ,  Atsuro OONISHI ,  Hiroshi TAKAHASHI ,  Takamitsu SUNAOSHI

IPC: G01N29/04 ,  B61K9/08 ,  B61L23/04

Abstract: According to one embodiment, a damaged region determination system of the embodiment includes a plurality of sensors, a position locator, and a determiner. The plurality of sensors detects elastic waves generated in a target object related to a railway which is a determination target of a damaged region. The position locator locates positions of sources of a plurality of elastic waves based on the plurality of elastic waves detected by each of the plurality of sensors. The determiner determines the damaged region in the target object based on the positions of the sources of the plurality of elastic waves.

公开(公告)号：US20220299406A1

公开(公告)日：2022-09-22

申请号：US17463035

申请日：2021-08-31

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takashi USUI ,  Toshiki TAKAYASU ,  Kazuo WATABE ,  Atsuro OONISHI ,  Hiroshi TAKAHASHI ,  Takamitsu SUNAOSHI

IPC: G01M17/10

Abstract: According to one embodiment, an inspection system of an embodiment is an inspection system for inspecting a bogie including a plurality of side beams extending in a front-rear direction and disposed apart from each other in a left-right direction and a cross beam connecting the plurality of side beams. The inspection system includes one or more sensors and a position locator. The one or more sensors are installed on at least one of the plurality of side beams and the cross beam and detect elastic waves. The position locator identifies a beam in which the elastic waves have been generated or locates a position of an elastic wave source on the basis of the elastic waves detected by the one or more sensors.

公开(公告)号：US20210096110A1

公开(公告)日：2021-04-01

申请号：US17012604

申请日：2020-09-04

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Sanae IIDA ,  Takashi USUI

IPC: G01N29/44 ,  G01N29/14 ,  G01M7/02

Abstract: According to one embodiment, a structure evaluation system of the embodiments includes a plurality of sensors, an arrival time determiner, a reliability calculator, and a map generator. The plurality of sensors detect elastic waves. The arrival time determiner determines arrival times of the elastic waves using elastic waves detected by the plurality of respective sensors. The reliability calculator calculates reliabilities related to measurement waveforms of the elastic waves on the basis of the arrival times. The map generator generates a first map on the basis of the calculated reliabilities or the reliabilities and a distance.

公开(公告)号：US20210083620A1

公开(公告)日：2021-03-18

申请号：US16804027

申请日：2020-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiroshi OHNO ,  Takashi USUI

IPC: H02S40/22 ,  G02B3/06 ,  F21V5/04

Abstract: According to one embodiment, an optical element includes a continuous gradient index distribution area, and a first medium. The continuous gradient index distribution area is configured to continuously attenuate gradient index from a center of the optical element in a radial direction. The first medium is at the center. The first medium includes an area where absolute value of imaginary part of a complex refractive index is greater than zero.

公开(公告)号：US20210080801A1

公开(公告)日：2021-03-18

申请号：US16802828

申请日：2020-02-27

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiroshi OHNO ,  Takashi USUI

IPC: G02F1/29

Abstract: According to one example, an optical element assembly includes a transparent rod, a mirror and a light emitting element. The rod transmits light of first wavelength region made incident on a first end of the rod and emits the light of the first wavelength region from a second end of the rod. The rod absorbs light of a second wavelength region falling out of the first wavelength region. The mirror is disposed on a side of the first end. The mirror transmits one of the light of the first and second wavelength regions, reflects the other. The light of the first and second wavelength regions are made incident on the first end of the rod. The light emitting element emits light of the second wavelength region made incident on the first end of the rod through the mirror.