IP Library Granted Patent US 11,886,831
Granted Patent B2
US 11,886,831 · App. 16/713,604 · Granted Jan 30, 2024

Data sorting device and method, and monitoring and diagnosis device

Inventors: Tamami Kurihara (Tokyo, JP); Kengo Iwashige (Tokyo, JP); Tetsuji Morita (Tokyo, JP); Shigeki Tounosu (Tokyo, JP); Tadaaki Kakimoto (Tokyo, JP)
Assignee: Mitsubishi Heavy Industries, Ltd.
G06F7/24G05B13/0265G05B13/047G06F17/18G06N20/00
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Quick Facts
Patent No.
US 11,886,831
App. No.
16/713,604
Granted
Jan 30, 2024
Kind
B2
Abstract

The present invention provides a data sorting device and method and a monitoring and diagnosis device, which are able to create a model conveniently. A data sorting device and a monitoring and diagnosis device of the present invention include an operating data database which stores operating data of the plant equipment in a time-series manner. The devices input the operating data that are highly associated physically and engineeringly among the operating data stored in the operating data database, inputting processing attributes relevant to the operating data that are highly associated physically and engineeringly, creating a model simulating characteristics of the plant equipment, and performing data sorting, monitoring, and diagnosis through use of the model.

Claims (49)

1. A computer-implemented method training a learning network to diagnose anomalies in plant equipment, the computer-implemented method comprising:

receiving operating data from sensors that monitor the plant equipment;

storing the operating data and a time when the operating data was collected by the sensors in a first database;

excluding abnormal values from the operating data to form filtered data;

training an electric characteristics learning unit using a first subset of the filtered data to generate first weighting factors;

training a vibratory characteristics learning unit using a second subset of the filtered data to generate second weighting factors;

training a thermal characteristics learning unit using a third subset of the filtered data to generate third weighting factors;

storing the first weighting factors, the second weighting factors and the third weighting factors in a second database;

creating a model for nominal operation using the first weighting factors, the second weighting factors and the third weighting factors that are stored in the second database;

receiving additional data from the sensors that monitor the plant equipment; and

diagnosing the anomalies in the plant equipment by inputting the additional data into the model for nominal operated created.

2. The computer-implemented method according to claim 1 , the method further comprising:

recommending countermeasures based on the anomalies in the plant equipment diagnosed, wherein the countermeasures are stored in a determination/evaluation result database.

3. The computer-implemented method according to claim 1 , wherein the plant equipment is a rotating electric machine.

4. A non-transitory computer readable storage medium that stores instructions for

training a learning network to diagnose anomalies in plant equipment, the instructions when executed by a processor cause the processor to execute a method, the method comprising:

receiving operating data from sensors that monitor the plant equipment

storing the operating data and a time when the operating data was collected by the sensors in a first database;

forming filtered data by excluding abnormal values from the operating data;

training an electric characteristics learning unit using a first subset of the filtered data to generate first weighting factors;

training a vibratory characteristics learning unit using a second subset of the filtered data to generate second weighting factors;

training a thermal characteristics learning unit using a third subset of the filtered data to generate third weighting factors;

storing the first weighting factors, the second weighting factors and the third weighting factors in a second database;

creating a model for nominal operation using the first weighting factors, the second weighting factors and the third weighting factors that are stored in the second database;

receiving additional data from the sensors that monitor the plant equipment; and

diagnosing the anomalies in the plant equipment by inputting the additional data into the model for nominal operated created.

5. The non-transitory computer readable storage medium according to claim 4 , wherein the method further comprises:

recommending countermeasures based on the anomalies in the plant equipment diagnosed, wherein the countermeasures are stored in a determination/evaluation result database.

6. The non-transitory computer readable storage medium according to claim 4 , wherein the plant equipment is a rotating electric machine.

7. A system for

training a learning network to diagnose anomalies in plant equipment, comprising:

sensors that monitor the plant equipment;

an operating data database that stores operating data collected by the sensors and a time when the operating data was collected by the sensors

a normal-value data database; and

a computer that is communicatively coupled to the sensors, the operating data database and the normal-value data database, wherein the computer is configured to:

retrieve the operating data from the operating data database,

form filtered data by excluding abnormal values from the operating data,

trains an electric characteristics learning unit using a first subset of the filtered data to generate first weighting factors,

trains a vibratory characteristics learning unit using a second subset of the filtered data to generate second weighting factors,

trains a thermal characteristics learning unit using a third subset of the filtered data to generate third weighting factors,

stores the first weighting factors, the second weighting factors and the third weighting factors in the normal-value data database,

creates a model for nominal operation using the first weighting factors, the second weighting factors and the third weighting factors that are stored in the normal-value data database;

receives additional data from the sensors that monitor the plant equipment; and

diagnose the anomalies in the plant equipment by inputting the additional data into the model for nominal operated created.

8. The system according to claim 7 further comprising:

a determination/evaluation result database that is communicatively coupled to the computer,

wherein the computer is further configured to:

recommend countermeasures based on the anomalies in the plant equipment diagnosed, wherein the countermeasures are stored in the determination/evaluation result database.

9. The system according to claim 7 , wherein the plant equipment is a rotating electric machine.

Assignments (4)
NUNC PRO TUNC ASSIGNMENT Recorded Nov 25, 2024
From: MITSUBISHI HEAVY INDUSTRIES, LTD.
To: MITSUBISHI GENERATOR CO., LTD.
Reel/Frame 069438/0941 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2022
From: MITSUBISHI POWER, LTD.
To: MITSUBISHI HEAVY INDUSTRIES, LTD.
Reel/Frame 059254/0646 →
CHANGE OF NAME Recorded Nov 16, 2020
From: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
To: MITSUBISHI POWER, LTD.
Reel/Frame 054377/0951 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2019
From: KURIHARA, TAMAMI; IWASHIGE, KENGO; MORITA, TETSUJI; TOUNOSU, SHIGEKI; KAKIMOTO, TADAAKI
To: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
Reel/Frame 051303/0682 →