公开(公告)号：US09632062B2

公开(公告)日：2017-04-25

申请号：US14483797

申请日：2014-09-11

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Yoshiaki Tanaka ,  Kazunori Miyazawa ,  Ken'ichi Kamada ,  Satoshi Kato ,  Yosuke Ishii ,  Sho Fujita ,  Yukiyo Akisada ,  Nobuo Okabe ,  Hiroaki Tanaka ,  Minako Terao

IPC: G01N29/04 ,  G01B17/02 ,  G01N17/00 ,  G01N29/07 ,  G01N29/11

CPC classification number: G01N29/04 ,  G01B17/02 ,  G01N17/00 ,  G01N29/043 ,  G01N29/07 ,  G01N29/11 ,  G01N2291/015 ,  G01N2291/023 ,  G01N2291/02854 ,  G01N2291/0289 ,  G01N2291/2634

Abstract: An ultrasonic pipe measurement apparatus includes: a plurality of ultrasonic transceivers discretely disposed on a pipe wall of a pipe; and a control unit configured to control the plurality of ultrasonic transceivers and detect a generation point of damage caused in the pipe based on an ultrasonic signal exchanged between the ultrasonic transceivers.

公开(公告)号：US09864908B2

公开(公告)日：2018-01-09

申请号：US14542797

申请日：2014-11-17

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Tetsuya Ishikawa ,  Nobuo Okabe ,  Yosuke Ishii ,  Ken'ichi Kamada

IPC: G06K9/00 ,  G06K9/46 ,  G06T11/60 ,  G06T7/246 ,  G06T7/254

CPC classification number: G06K9/00624 ,  G06K9/00711 ,  G06K9/4604 ,  G06T7/248 ,  G06T7/254 ,  G06T11/60 ,  G06T2207/10016 ,  G06T2207/20021 ,  G06T2207/30232

Abstract: A slow change detection system includes: an image acquisition unit adapted to acquire a photographed image including consecutive images of a monitored object; a reference image acquisition unit adapted to acquire a reference image corresponding to the photographed image of the monitored object; a reference image area extraction unit adapted to extract, from the reference image, a reference image area that is an area corresponding to a photographed area of the photographed image; a change detection unit adapted to acquire a change area that is an area of the photographed image which is different from the reference image area and acquire a slow change area by excluding, from the acquired change area, a sudden change area derived from a history of the change area; and a display control unit adapted to superimpose and display information indicating the slow change area on the photographed image.

公开(公告)号：US20190164102A1

公开(公告)日：2019-05-30

申请号：US16198501

申请日：2018-11-21

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Tomohiro Kuroda ,  Mitsunori Fukuzawa ,  Ken'ichi Kamada

IPC: G06Q10/06 ,  G06F17/18 ,  G06Q50/04

Abstract: An operational improvement effect calculation method includes: retrieving, from inputted plant operation data relating to operations of a plant, comparison target plant operation data which includes more than one plant operation data points similar to a plant operation indicated by evaluation target plant operation data which is plant operation data of an evaluation target; calculating a post-improvement evaluation indicator based on the evaluation target plant operation data and a pre-improvement evaluation indicator based on each of the comparison target plant operation data; calculating a confidence interval, based on each data point of the comparison target plant operation data; calculating a baseline, which is a reference when comparing the post-improvement evaluation indicator and the pre-improvement evaluation indicator and corresponds to the pre-improvement evaluation indicator, based on the confidence interval; and calculating an evaluation result on the plant, based on the post-improvement evaluation indicator and the baseline.