公开(公告)号：US11665193B2

公开(公告)日：2023-05-30

申请号：US17710297

申请日：2022-03-31

Applicant: CHIYODA CORPORATION

Inventor： Shizuka Ikawa ,  Takehito Yasui ,  Kazuya Furuichi ,  Yuki Hamada

IPC: H04L9/40 ,  G06F21/55 ,  G05B23/02

CPC classification number: H04L63/1433 ,  G05B23/0262 ,  G05B23/0272 ,  G05B23/0283 ,  G06F21/55 ,  H04L63/14

Abstract: A plant management method includes: acquiring correlation information indicating a correlation between a component subjected to a cyberattack and a component to be possibly affected by the cyberattack when a plant including a plurality of components is subjected to the cyberattack; and zoning the plurality of components on the basis of the correlation information.

公开(公告)号：US11914348B2

公开(公告)日：2024-02-27

申请号：US17089153

申请日：2020-11-04

Applicant: CHIYODA CORPORATION ,  GRIDINC

Inventor： Takehito Yasui ,  Shizuka Ikawa ,  Akifumi Toki ,  Masaru Sogabe ,  Yusuke Suwa

IPC: G05B19/418 ,  G06N3/08

CPC classification number: G05B19/4185 ,  G05B19/4183 ,  G05B19/41865 ,  G05B19/41885 ,  G06N3/08

Abstract: A plant operating condition setting support system for supporting the setting of an operating condition of a plant that performs a process formed by devices includes: control devices that subject controlled devices to feedback control respectively; and an operating condition setting support device that provides integrated support for the setting of the control devices, which perform feedback control tasks respectively and independently. The operating condition setting support device includes: a measured value multiple acquisition unit that acquires measured values indicating states of the controlled devices, respectively; and a control device adjustment parameter determination unit that determines, based on the measured values acquired, control device adjustment parameters used by each of the control devices to determine manipulation variables for control that should be input to the controlled devices, according to a policy learned by deep reinforcement learning.

公开(公告)号：US11320811B2

公开(公告)日：2022-05-03

申请号：US16995031

申请日：2020-08-17

Applicant: CHIYODA CORPORATION

Inventor： Yoshihiro Yamaguchi ,  Takehito Yasui ,  Toshiya Momose

IPC: G05B19/418 ,  G06N20/00

Abstract: A plant operating condition setting support system for supporting the setting of a plant operating condition includes: a learning device that learns a regression model for calculating, from values of a plurality of state parameters indicating an operating condition of a plant and values of a plurality of manipulation parameters set to control an operation of the plant, a predicted value of an output indicating a result of operating the plant when the values of the plurality of manipulation parameters are set in the operating condition indicated by the values of the plurality of state parameters; and an operating condition setting support device that calculates the values of the plurality of manipulation parameters that should be set to control the operation of the plant, by using the regression model learned by the learning device.