公开(公告)号：US20210018906A1

公开(公告)日：2021-01-21

申请号：US17043209

申请日：2019-05-10

Applicant: Hitachi, Ltd.

Inventor： Munetoshi UNUMA ,  Akihiro KOMASU

IPC: G05B23/02

Abstract: Provided are a feature amount extraction device, a failure sign diagnosis device, a design assistance device, and a failure sign diagnosis operation method which are suitable for predictively diagnosing equipment failure. The feature amount extraction device is for acquiring data from a sensor attached to a piece of equipment to be diagnosed and outputting a feature amount after pre-processing is executed, and is characterized by being provided with: a reconfigurable circuit to which the data from the sensor is inputted; an arithmetic unit; a reconfigured information database that stores reconfigured information; and a communication module for external connection, wherein the arithmetic unit outputs, through the communication module, the feature amount acquired by executing a feature amount extraction process and the pre-processing using the reconfigurable circuit performed with respect to the data from the sensor, stores the reconfigured information acquired from the outside in the reconfigured information database, and configures the reconfigurable circuit in accordance with the reconfigured information.

公开(公告)号：US20210055706A1

公开(公告)日：2021-02-25

申请号：US16954232

申请日：2018-02-23

Applicant: Hitachi, Ltd.

Inventor： Tomoaki HIRUTA ,  Hideaki SUZUKI ,  Takayuki UCHIDA ,  Akihiro KOMASU

IPC: G05B19/042

Abstract: A condition monitoring system which collects operation data from a machine and monitors a condition of the machine includes: a storage unit that stores information indicating components of a first machine for which a model for a sensor data analysis has been created and components of a second machine for which the model is newly created, information indicating a correspondence relationship between the components of the first machine and the components of the second machine, and information relating to the model; a model creation unit that creates model candidates of the second machine from the model similar to the second machine by using the information stored in the storage unit, and creating information relating to a model candidate selected via an input unit out of the model candidates as the model of the second machine; and a display unit that displays the model candidates.