公开(公告)号：US20210125387A1

公开(公告)日：2021-04-29

申请号：US17254627

申请日：2019-05-23

Applicant: HITACHI, LTD.

Inventor： Miyuki KAWATA ,  Seunghwan PARK ,  Yoshiyuki TAKAMORI

IPC: G06T11/20 ,  G06T11/00 ,  G06F3/14 ,  G05B23/02

Abstract: An embodiment of the process state analysis device of the present invention is provided with an evaluation value calculation unit and a graph creation unit. The evaluation value calculation unit calculates, within an evaluation value calculation range indicating a target range for calculating evaluation values, an evaluation value for each cluster that is classified on the basis of multi-dimensional process data output from each measurement device. The graph creation unit determines a hue for a graph element for each cluster on the basis of the evaluation value for the cluster as calculated within the evaluation value calculation range, and on the basis of a color reference evaluation value corresponding to a reference hue for the graph element, and creates and outputs a graph representing, for each aggregation unit time interval in a specified display period, the number of nodes belonging to each cluster.

公开(公告)号：US20230143297A1

公开(公告)日：2023-05-11

申请号：US17917582

申请日：2021-03-16

Applicant: HITACHI, LTD.

Inventor： Miyuki KAWATA ,  Seunghwan PARK ,  Yoshiyuki TAKAMORI

IPC: G06Q10/0633 ,  G06F16/906 ,  G06Q50/04 ,  G06F16/903

CPC classification number: G06Q10/0633 ,  G06F16/906 ,  G06Q50/04 ,  G06F16/90344

Abstract: A database includes a classification master table which registers a classification name obtained by classifying processing performed in each process of a production line and a classification ID in association with each other, a process table which registers a process name of the process and a process ID in association with each other, a process order table which registers the process ID and a next process ID in association with each other, a process classification table which registers the process ID and the classification ID in association with each other, a knowledge table which registers a problem content occurring in each process, a factor thereof, and a knowledge ID in association with each other, and a knowledge classification table which registers the knowledge ID and the classification ID in association with each other.