Management device, management system, and management method for classifying an operation pattern

Patent metadata

Field	Value
Publication number	US-12309230-B2
Application number	US-202318382196-A
Country	US
Kind code	B2
Filing date	Oct 20, 2023
Priority date	Apr 28, 2021
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A management device includes: an acquisition unit that acquires operating history data for an equipment device in a prescribed time period; and a classification processing unit that classifies, based on the operating history data acquired by the acquisition unit, an operating pattern of the equipment device in the prescribed time period. The classification processing unit includes: an operating pattern calculation unit that calculates a first operating pattern in a first time period and a second operating pattern in a remaining second time period when the prescribed time period is divided into unit time periods; a change calculation unit that calculates a degree of change in the operating pattern using the first operating pattern and the second operating pattern when the prescribed time period is divided into unit time periods; a split point calculation unit that calculates, as a split time point, a time point where the degree of change satisfies a prescribed condition for the prescribed time period; and a split processing unit that splits the prescribed time period at the calculated split time point.

First claim

The invention claimed is:

1. A management device comprising:
a central processing unit (CPU); and
a memory storing a program,
the CPU executing the program to
acquire operating history data for an equipment device in a prescribed time period, and

classify, based on the acquired operating history data, an operating pattern of the equipment device in the prescribed time period and
the classifying the operating pattern including
calculating a first operating pattern in a first time period before a first time point that virtually splits the prescribed time period and a second operating pattern in a remaining second time period,
changing the virtual split time point to a second time point based on a unit time,
calculating a degree of change in the operating pattern using a third operating pattern in a third time period before the second time point and a fourth operating pattern in a fourth time period after the second time point in the prescribed time period when the virtual split time point is changed to the second time point,
calculating, as a split time point, a time point where the degree of change satisfies a prescribed condition for the prescribed time period, and
dividing and classifying the operating pattern of the equipment device at the calculated split time point.

2. The management device according to claim 1 , wherein
the CPU displays a result of the split of the prescribed time period.

3. The management device according to claim 1 , wherein
the CPU calculates a first operating pattern indicating an operating ratio for each time of day in the first time period, and a second operating pattern indicating an operating ratio for each time of day in the second time period.

4. The management device according to claim 1 , wherein
the CPU calculates a first operating pattern indicating an operating ratio for each day of the week in the first time period, and a second operating pattern indicating an operating ratio for each day of the week in the second time period.

5. The management device according to claim 1 , wherein
the CPU calculates a first operating pattern indicating a distribution of an operating ratio for each operation mode of the equipment device in the first time period, and a second operating pattern indicating a distribution of an operating ratio for each operation mode of the equipment device in the second time period.

6. The management device according to claim 1 , wherein
the CPU calculates a first operating pattern indicating a distribution of each set temperature in the first time period, and a second operating pattern indicating a distribution of the set temperature in the second time period.

7. The management device according to claim 1 , wherein
the CPU calculates a waveform difference between the first operating pattern and the second operating pattern as the degree of change.

8. The management device according to claim 1 , wherein
the CPU calculates the degree of change in the operating pattern using the operating pattern in the entire prescribed time period, and the first operating pattern and the second operating pattern when the virtual split time point is changed to the second time point based on the unit time.

9. A management system comprising:
at least one or more equipment devices;
a central processing unit (CPU); and
a memory storing a program,
the CPU executing the program to
acquire operating history data for the equipment device in a prescribed time period, and
classify, based on the acquired operating history data, an operating pattern of the equipment device in the prescribed time period, and
the classifying the operating pattern including
calculating a first operating pattern in a first time period before a first time point that virtually splits the prescribed time period and a second operating pattern in a remaining second time period,
changing the virtual split time point to a second time point based on a unit time,
calculating a degree of change in the operating pattern using a third operating pattern in a third time period before the second time point and a fourth operating pattern in a fourth time period after the second time point in the prescribed time period when the virtual split time point is changed to the second time point,
calculating, as a split time point, a time point where the degree of change satisfies a prescribed condition for the prescribed time period, and
dividing and classifying the operating pattern of the equipment device at the calculated split time point.

10. A management method comprising:
acquiring operating history data for an equipment device in a prescribed time period; and
classifying, based on the acquired operating history data, an operating pattern of the equipment device in the prescribed time period,
the classifying the operating pattern including
calculating a first operating pattern in a first time period before a first time point that virtually splits the prescribed time period and a second operating pattern in a remaining second time period,
changing the virtual split time point to a second time point based on a unit time,
calculating a degree of change in the operating pattern using a third operating pattern in a third time period before the second time point and a fourth operating pattern in a fourth time period after the second time point in the prescribed time period when the virtual split time point is changed to the second time point,
calculating, as a split time point, a time point where the degree of change satisfies a prescribed condition for the prescribed time period, and
dividing and classifying the operating pattern of the equipment device at the calculated split time point.

Assignees

• Mitsubishi Electric Corp

Inventors

• Narui Tomohiro
• Murayama Shuichi
• Nagahiro Kazuyuki
• Sato Fuyuki
• Mega Toshihiro
• Yoshimura Genta

Classifications

• G16Y40/35

  Management of things, i.e. controlling in accordance with a policy or in order to achieve specified objectives · CPC title

• G16Y40/10

  Detection; Monitoring · CPC title

• G05B2219/2639

  Energy management, use maximum of cheap power, keep peak load low · CPC title

• G05B19/042

  using digital processors (G05B19/05 takes precedence) · CPC title

• G05B19/418

  Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] · CPC title