Monitoring device, monitoring system, monitoring method, correction information generation device, correction information generation method, and non-transitory storage medium

• US 10,495,674 B2
• Filed: 01/07/2015
• Issued: 12/03/2019
• Est. Priority Date: 01/29/2014
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Saneyoshi, Eisuke, Toizumi, Takahiro, Homma, Kosuke, Hashimoto, Ryo, Suzuki, Katsuya
• Primary Examiner(s): Le, Thang X
• Application Number:
  US15/115,152
• Publication Number:
  US 20160349294A1
• Time in Patent Office: 1,791 Days
• CPC Class Codes: G01R 19/2513 Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
• CPC Class Codes: G01R 21/133 by using digital technique

Abstract

A monitoring device (10) includes a feature amount storage unit (11) that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation; a measured data acquisition unit (12) that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit; a feature amount extraction unit (13) that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit; a correction unit (15) that corrects a first feature amount which is the device feature amount or the measurement feature amount based on unit feature information indicating a feature of the predetermined unit; and a presumption unit (16) that presumes the electrical device being in operation using the corrected first feature amount, and a second feature amount which is the device feature amount or the measurement feature amount, and a different feature amount from the first feature amount.

Claims

1. A monitoring device comprising:

a feature amount storage unit that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a feature amount extraction unit that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a correction unit that corrects a first feature amount which is the device feature amount or the measurement feature amount in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of reference data for extracting the device feature amount and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled; and

a presumption unit that presumes the electrical device being in operation using the corrected first feature amount, and a second feature amount which is the device feature amount or the measurement feature amount, and a different feature amount from the first feature amount.

2. The monitoring device according to claim 1,

wherein the correction unit corrects the first feature amount based on unit feature information indicating a feature of the predetermined unit.

3. The monitoring device according to claim 1, further comprising:

a correction information generation unit that generates correction information for cancelling a difference between the device feature amount and the measurement feature amount based on the device feature amount and the measurement feature amount,

wherein the correction unit corrects the first feature amount based on the correction information.

4. The monitoring device according to claim 1,

wherein the unit feature information includes at least one of information regarding an interconnect in the predetermined unit and information for specifying the electrical device connected to the interconnect in the predetermined unit.

5. The monitoring device according to claim 4,

wherein the correction unit performs the correction in consideration of a feature of the predetermined unit as an LC circuit specified by setting the interconnect in the predetermined unit as inductance and regarding the electrical device connected to the interconnect in the predetermined unit as electrostatic capacitance.

6. The monitoring device according to claim 4,

wherein the first and second correction units perform the correction in consideration of a feature of the predetermined unit as an LC circuit specified by setting the interconnect in the predetermined unit as inductance and regarding the electrical device connected to the interconnect in the predetermined unit as electrostatic capacitance.

7. A monitoring system comprising:

the monitoring device according to claim 1; and

a transmission device that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured by a measuring instrument installed in the predetermined unit and transmits the measured data of the predetermined unit to the monitoring device.

20. The monitoring device according to claim 1,

wherein the device feature amount is a feature amount of each of the electrical devices extracted from reference data which is at least one of the current consumption, the power consumption, and the voltage measured using each of the plurality of electrical devices installed in the predetermined unit, placed in a different environment from the predetermined unit.

8. A monitoring device comprising:

a feature amount storage unit that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a feature amount extraction unit that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a first correction unit that corrects the device feature amount in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of reference data for extracting the device feature amount and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a second correction unit that corrects the measurement feature amount in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled; and

a presumption unit that presumes the electrical device being in operation using the corrected device feature amount and the corrected measurement feature amount.

9. The monitoring device according to claim 8,

wherein the first correction unit corrects the device feature amount based on unit feature information indicating a feature of the predetermined unit, and

wherein the second correction unit corrects the measurement feature amount based on the unit feature information.

10. The monitoring device according to claim 8, further comprising:

a correction information generation unit that generates correction information for cancelling a difference between the device feature amount and the measurement feature amount based on the device feature amount and the measurement feature amount,

wherein the first correction unit corrects the device feature amount based on the correction information, and

wherein the second correction unit corrects the measurement feature amount based on the correction information.

11. A monitoring device comprising:

a feature amount storage unit that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a correction unit that corrects the measured data of the predetermined unit in a direction in which a difference occurring between the device feature amount and the measurement feature amount extracted from the measured data of the predetermined unit due to disagreement between a measurement condition at the time of measurement of reference data for extracting the device feature amount and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a feature amount extraction unit that acquires a corrected measurement feature amount which is the feature amount included in the corrected measured data of the predetermined unit; and

a presumption unit that presumes the electrical device being in operation using the device feature amount and the corrected measurement feature amount.

12. The monitoring device according to claim 11,

wherein the correction unit corrects the measured data of the predetermined unit based on unit feature information indicating a feature of the predetermined unit.

13. The monitoring device according to claim 11, further comprising:

a correction information generation unit that generates correction information for cancelling a difference between the reference data and the measured data of the predetermined unit based on the reference data and the measured data of the predetermined unit from which the device feature amount is extracted,

wherein the correction unit corrects the measured data of the predetermined unit based on the correction information.

14. A monitoring device comprising:

a reference data storage unit that stores reference data which is at least one of a current consumption, a power consumption, and a voltage measured using each of a plurality of electrical devices installed in a predetermined unit, placed in a different environment from the predetermined unit;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of the total current consumption, the total power consumption, and the voltage measured in the predetermined unit;

a feature amount extraction unit that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a correction unit that corrects the reference data of each of the plurality of electrical devices in a direction in which a difference occurring between device feature amount extracted from the reference data and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a corrected device feature amount generation unit that acquires a corrected device feature amount which is a feature amount of each of the electrical devices included in each piece of the corrected reference data; and

a presumption unit that presumes the electrical device being in operation using the corrected device feature amount and the measurement feature amount.

15. The monitoring device according to claim 14,

wherein the correction unit corrects the reference data based on unit feature information indicating a feature of the predetermined unit.

16. The monitoring device according to claim 15, further comprising:

a correction information generation unit that generates correction information for cancelling a difference between the reference data and the measured data of the predetermined unit based on the reference data and the measured data of the predetermined unit,

wherein the correction unit corrects the reference data based on the correction information.

17. A monitoring device comprising:

a reference data storage unit that stores reference data which is at least one of a current consumption, a power consumption, and a voltage measured using each of a plurality of electrical devices installed in a predetermined unit, placed in a different environment from the predetermined unit;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of the total current consumption, the total power consumption, and the voltage measured in the predetermined unit;

a first correction unit that corrects the reference data of each of the plurality of electrical devices in a direction in which a difference occurring between a device feature amount extracted from the reference data and a measurement feature amount extracted from the measured data of the predetermined unit due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a corrected device feature amount generation unit that acquires a corrected device feature amount which is a feature amount of each of the electrical devices included in each piece of the corrected reference data;

a second correction unit that corrects the measured data of the predetermined unit in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a feature amount extraction unit that acquires a corrected measurement feature amount which is the feature amount included in the corrected measured data of the predetermined unit; and

a presumption unit that presumes the electrical device being in operation using the corrected device feature amount and the corrected measurement feature amount.

18. The monitoring device according to claim 17,

wherein the first correction unit corrects the reference data based on unit feature information indicating a feature of the predetermined unit, and

wherein the second correction unit corrects the measured data of the predetermined unit based on the unit feature information indicating the feature of the predetermined unit.

19. The monitoring device according to claim 17, further comprising:

a correction information generation unit that generates correction information for cancelling a difference between the reference data and the measured data of the predetermined unit based on the reference data and the measured data of the predetermined unit,

wherein the first correction unit corrects the reference data based on the correction information, and

wherein the second correction unit corrects the measured data of the predetermined unit based on the correction information.

21. A monitoring method performed by a computer that stores in advance a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation, the method comprising:

a measured data acquisition step of acquiring measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a feature amount extraction step of acquiring a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a correction step of correcting a first feature amount which is the device feature amount or the measurement feature amount in a direction in which a difference occurring between a device feature amount extracted from the reference data and a measurement feature amount extracted from the measured data of the predetermined unit due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled; and

a presumption step of presuming the electrical device being in operation using the corrected first feature amount, and a second feature amount which is the device feature amount or the measurement feature amount, and a different feature amount from the first feature amount.

22. A monitoring method performed by a computer that stores in advance a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation, the method comprising:

a measured data acquisition step of acquiring measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a feature amount extraction step of acquiring a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a first correction step of correcting the device feature amount in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of reference data for extracting the device feature amount and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a second correction step that correcting the measurement feature amount in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled; and

a presumption step of presuming the electrical device being in operation using the corrected device feature amount and the corrected measurement feature amount.

23. A monitoring method performed by a computer that stores in advance a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation, the method comprising:

a measured data acquisition step of acquiring measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a correction step of correcting the measured data of the predetermined unit in a direction in which a difference occurring between the device feature amount and the measurement feature amount extracted from the measured data of the predetermined unit due to disagreement between a measurement condition at the time of measurement of reference data for extracting the device feature amount and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a feature amount extraction step of acquiring a corrected measurement feature amount which is the feature amount included in the corrected measured data of the predetermined unit; and

a presumption step of presuming the electrical device being in operation using the device feature amount and the corrected measurement feature amount.

24. A monitoring method performed by a computer that stores in advance reference data which is at least one of a current consumption, a power consumption, and a voltage measured using each of a plurality of electrical devices installed in a predetermined unit, placed in a different environment from the predetermined unit, the method comprising:

a measured data acquisition step of acquiring measured data of the predetermined unit which is at least one of the total current consumption, the total power consumption, and the voltage measured in the predetermined unit;

a feature amount extraction step of acquiring a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a correction step of correcting the reference data of each of the plurality of electrical devices in a direction in which a difference occurring between device feature amount extracted from the reference data and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a corrected device feature amount generation step of acquiring a corrected device feature amount which is a feature amount of each of the electrical devices included in each piece of the corrected reference data; and

a presumption step of presuming the electrical device being in operation using the corrected device feature amount and the measurement feature amount.

25. A monitoring method performed by a computer that stores in advance reference data which is at least one of a current consumption, a power consumption, and a voltage measured using each of a plurality of electrical devices installed in a predetermined unit, placed in a different environment from the predetermined unit, the method comprising:

a measured data acquisition step of acquiring measured data of the predetermined unit which is at least one of the total current consumption, the total power consumption, and the voltage measured in the predetermined unit;

a first correction step of correcting the reference data of each of the plurality of electrical devices in a direction in which a difference occurring between a device feature amount extracted from the reference data and a measurement feature amount extracted from the measured data of the predetermined unit due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a corrected device feature amount generation step of acquiring a corrected device feature amount which is a feature amount of each of the electrical devices included in each piece of the corrected reference data;

a second correction step of correcting the measured data of the predetermined unit in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a feature amount extraction step of acquiring a corrected measurement feature amount which is the feature amount included in the corrected measured data of the predetermined unit; and

a presumption step of presuming the electrical device being in operation using the corrected device feature amount and the corrected measurement feature amount.

26. A non-transitory storage medium storing a program causing a computer to function as:

a feature amount storage unit that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a feature amount extraction unit that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a correction unit that corrects a first feature amount which is the device feature amount or the measurement feature amount in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of reference data for extracting the device feature amount and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled; and

a presumption unit that presumes the electrical device being in operation using the corrected first feature amount, and a second feature amount which is the device feature amount or the measurement feature amount, and a different feature amount from the first feature amount.

27. A non-transitory storage medium storing a program causing a computer to function as:

a feature amount storage unit that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a feature amount extraction unit that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a first correction unit that corrects the device feature amount in a direction in which a difference occurring between a device feature amount extracted from the reference data and a measurement feature amount extracted from the measured data of the predetermined unit due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a second correction unit that corrects the measurement feature amount in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled; and

a presumption unit that presumes the electrical device being in operation using the corrected device feature amount and the corrected measurement feature amount.

28. A non-transitory storage medium storing a program causing a computer to function as:

a feature amount storage unit that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit;

a correction unit that corrects the measured data of the predetermined unit in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of reference data for extracting the device feature amount and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a feature amount extraction unit that acquires a corrected measurement feature amount which is the feature amount included in the corrected measured data of the predetermined unit; and

a presumption unit that presumes the electrical device being in operation using the device feature amount and the corrected measurement feature amount.

29. A non-transitory storage medium storing a program causing a computer to function as:

a reference data storage unit that stores reference data which is at least one of a current consumption, a power consumption, and a voltage measured using each of a plurality of electrical devices installed in a predetermined unit, placed in a different environment from the predetermined unit;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of the total current consumption, the total power consumption, and the voltage measured in the predetermined unit;

a feature amount extraction unit that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit;

a correction unit that corrects the reference data of each of the plurality of electrical devices in a direction in which a difference occurring between device feature amount extracted from the reference data and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a corrected device feature amount generation unit that acquires a corrected device feature amount which is a feature amount of each of the electrical devices included in each piece of the corrected reference data; and

a presumption unit that presumes the electrical device being in operation using the corrected device feature amount and the measurement feature amount.

30. A non-transitory storage medium storing a program causing a computer to function as:

a reference data storage unit that stores reference data which is at least one of a current consumption, a power consumption, and a voltage measured using each of a plurality of electrical devices installed in a predetermined unit, placed in a different environment from the predetermined unit;

a measured data acquisition unit that acquires measured data of the predetermined unit which is at least one of the total current consumption, the total power consumption, and the voltage measured in the predetermined unit;

a first correction unit that corrects the reference data of each of the plurality of electrical devices in a direction in which a difference occurring between a device feature amount extracted from the reference data and a measurement feature amount extracted from the measured data of the predetermined unit due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a corrected device feature amount generation unit that acquires a corrected device feature amount which is a feature amount of each of the electrical devices included in each piece of the corrected reference data;

a second correction unit that corrects the measured data of the predetermined unit in a direction in which a difference occurring between the device feature amount and the measurement feature amount due to disagreement between a measurement condition at the time of measurement of the reference data and a measurement condition at the time of measurement of the measured data of the predetermined unit is cancelled;

a feature amount extraction unit that acquires a corrected measurement feature amount which is the feature amount included in the corrected measured data of the predetermined unit; and

a presumption unit that presumes the electrical device being in operation using the corrected device feature amount and the corrected measurement feature amount.