Abnormal facility identification system and abnormal facility identification program

Abstract

To provide an abnormal facility identification system which can be constructed at low cost.SOLUTION: An abnormal facility identification system is configured to identify a facility E, where an abnormality occurs, in a plurality of facilities E connected to a plurality of trunk lines D. The abnormal facility identification system comprises: a power consumption information acquisition section 31 which acquires power consumption on a trunk line basis; an operation information acquisition section 32 which acquires operation information regarding each of the plurality of facilities E; and an abnormal facility identification processing section 34 which identifies a trunk line D, where a power abnormal occurs, based on the power consumption acquired by the power consumption information acquisition section 31 and identifies a facility E, where an abnormality of power consumption occurs, based on the power consumption of the identified trunk line D and the operation information of the facilities E acquired by the operation information acquisition section 32.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an abnormal equipment identification system and an abnormal equipment identification program.

Background Art

[0002] Technologies for managing a plurality of facilities provided in a factory or a house based on their power consumption information are being applied. For example, Patent Document 1 discloses a technology for measuring the power consumption of a plurality of facilities. In this document, a technology is proposed in which a single power meter can measure the power consumption in a main line connected to a plurality of facilities in order to measure the power consumption of the plurality of facilities in a home. And in this technology, management of the facilities used in the home is executed based on the power consumption of the main line.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, when a plurality of facilities are connected to a main line, there is also a technology for performing power measurement on the main line and executing energy management. However, since power measurement is performed on a main line basis, it is not possible to detect an abnormality in the power consumption of each facility. At this time, by providing a power meter for all facilities, it is possible to identify which facility has a power abnormality. However, there is a problem that a large amount of power meters need to be introduced, the system becomes large, and the cost increases significantly.

[0005] The present invention has been made to solve such problems, and provides an abnormal equipment identification system that can be constructed at low cost.

Means for Solving the Problems

[0006] The abnormal equipment identification system according to the present invention is an abnormal equipment identification system that identifies equipment in which an abnormality has occurred among a plurality of equipment connected to each of a plurality of main lines, and includes a power consumption information acquisition unit that acquires power consumption in units of main lines, an operation information acquisition unit that acquires operation information for each of the plurality of equipment, and an abnormal equipment identification processing unit that identifies a main line in which a power abnormality has occurred based on the power consumption acquired by the power consumption information acquisition unit, and identifies equipment in which an abnormality in power consumption has occurred based on the power consumption of the identified main line and the operation information of the equipment acquired by the operation information acquisition unit.

[0007] Here, the abnormal equipment identification processing unit preferably compares the power consumption in units of the main lines acquired by the power consumption information acquisition unit with a preset power consumption threshold value for the corresponding main line, and when the power consumption of the acquired main line is equal to or higher than the upper limit of the corresponding threshold value, identifies the equipment identified as being in operation based on the operation information as the equipment in which an abnormality has occurred.

[0008] Further, the abnormal equipment identification processing unit preferably compares the power consumption in units of the main lines acquired by the power consumption information acquisition unit with a preset power consumption threshold value for the corresponding main line, and when the power consumption of the acquired main line is equal to or lower than the lower limit of the corresponding threshold value, identifies the equipment identified as being stopped based on the operation information as the equipment in which an abnormality has occurred.

[0009] The abnormal equipment identification processing unit preferably outputs the equipment identified as the equipment in which an abnormality has occurred, further acquires the power consumption individually measured for the equipment, and re-identifies the equipment in which an abnormality in power consumption has occurred based on the power consumption of the equipment and the operation information.

[0010] The abnormal equipment identification program according to the present invention is an abnormal equipment identification program for identifying equipment in which an abnormality has occurred among a plurality of equipment connected to each of a plurality of main lines, and causes a computer to execute a process of identifying equipment in which an abnormal power consumption has occurred based on the power consumption per main line and the operation information of each of the plurality of equipment.

Advantages of the Invention

[0011] According to the present invention, an abnormal equipment identification system that can be constructed at low cost can be provided.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0013] Embodiment 1 Hereinafter, with reference to the drawings, the equipment management system and the abnormal equipment identification system according to Embodiment 1 will be described.

[0014] <Configuration of Equipment Management System> First, with reference to FIG. 1, the configuration of the equipment management system according to Embodiment 1 will be described. The equipment management system 100 is a system for managing a plurality of equipment installed in, for example, a factory, and includes an abnormal equipment identification device 3.

[0015] The equipment management system 100 includes a power consumption management device 1, an operation status management device 2, an abnormal equipment identification device 3, an IOT platform 4, a main power line measuring device 5, an equipment power measuring device 6, a main distribution board 7, a distribution board 8, a quality control board 9, a main power line D, an equipment power line d, and a plurality of equipment E.

[0016] The power consumption management device 1 is a system that manages the power consumption of the equipment E in units of main power lines that supply power to each equipment E. The power consumption management device 1 is connected to a plurality of main power line measuring devices 5 and the IOT platform 4. The power consumption management device 1 acquires the power consumption of the main power line D measured by the main power line measuring device 5 at a predetermined timing (typically constantly). Then, the power consumption management device 1 transmits the acquired power consumption of the main power line D to the abnormal equipment identification device 3 via the IOT platform 4.

[0017] The operation status management device 2 is a system that manages the operation information of a plurality of equipment E. The operation status management device 2 is also called an "andon board" and is an electroluminescent display panel that electronically displays the operation information and work instructions of the equipment E. The operation status management device 2 is connected to a plurality of equipment E and the abnormal equipment identification device 3. The operation status management device 2 acquires the operation information of the equipment E at a predetermined timing (typically constantly). Next, the operation status management device 2 transmits the acquired operation information of the equipment E to the abnormal equipment identification device 3. The operation information of the equipment E to be acquired includes information indicating the operation status such as the equipment E being in operation, stopped, abnormal or warning occurring, or emergency stopped. In addition, the operation status management device 2 outputs the operation information of the equipment E from an operation information notification unit such as a display (not shown) so that the user can grasp the operation information of the equipment E.

[0018] The abnormal equipment identification device 3 is a system that identifies the equipment E in which an abnormality has occurred among a plurality of pieces of equipment E connected to each of a plurality of main lines D. The abnormal equipment identification device 3 is connected to the operation status management device 2 and the IOT platform 4. The abnormal equipment identification device 3 receives from the power consumption management device 1 the power consumption information of the main line D acquired by the power consumption management device 1. Also, the abnormal equipment identification device 3 receives from the operation status management device 2 the operation information of the equipment E acquired by the operation status management device 2. Further, the abnormal equipment identification device 3 also receives from the equipment power measuring device 6 the power consumption of the equipment E measured by the equipment power measuring device 6. Based on the received information, the abnormal equipment identification device 3 executes a process of identifying the main line D in which an abnormality in power consumption has occurred and the equipment E in which an abnormality in power consumption has occurred. The abnormal equipment identification device 3 will be described in detail later.

[0019] The IOT platform 4 is connected via a network to a plurality of IOT (Internet Of Things) devices inside and outside the factory, and receives and transmits various information. The IOT platform 4 receives, for example, the power consumption of each main line D acquired by the power consumption management device 1 and transmits it to the abnormal equipment identification device 3.

[0020] The main line power measuring device 5 is connected to the main line D and the power consumption management device 1. The main line power measuring device 5 constantly measures the power consumption of the main line D and transmits the measured power consumption information to the power consumption management device 1.

[0021] The equipment power measuring device 6 is used to individually measure the power consumption of the equipment E. The equipment power measuring device 6 is not provided for each of the pieces of equipment E, but is a device held by the user for measuring the power of each piece of equipment E. The equipment power measuring device 6 includes, for example, an input terminal connected to the power terminal of the equipment E, a sensor that detects the amount of power based on the electrical signal input from the input terminal, a storage unit that holds the detected amount of power as data, and an output unit that outputs the amount of power. The user holds the equipment power measuring device 6 and moves it to appropriately measure the power consumption of the equipment E. The equipment power measuring device 6 transmits the measured power consumption of the equipment E to the abnormal equipment identification device 3 by wireless or wired communication.

[0022] The main distribution board 7 supplies power to the distribution board 8 via the main line D. Then, the distribution board 8 supplies power to the equipment E via the equipment power line d.

[0023] The quality control board 9 is a device that stores and manages the product information produced by the equipment E. The product information includes, for example, identification information such as the manufacturing number of the product. The abnormal equipment identification device 3 can easily identify the products produced by the equipment E on the main line D where an abnormality has occurred by acquiring the product information from the quality control board 9 via the IOT platform 4 when an abnormality in power consumption occurs.

[0024] Next, with reference to FIG. 2, the configuration of the abnormal equipment identification device 3 will be described. The abnormal equipment identification device 3 includes a power consumption information acquisition unit 31, an operation information acquisition unit 32, a power consumption abnormality detection unit 33, an abnormal equipment identification processing unit 34, and a notification unit 35. The power consumption information acquisition unit 31 receives the power consumption of the main line D acquired by the power consumption management device 1 from the power consumption management device 1 via the IOT platform 4 and stores it in a storage unit (not shown). Also, the power consumption information acquisition unit 31 receives the power consumption of the equipment E acquired by the equipment power measuring device 6 from the equipment power measuring device 6 and stores it in a storage unit (not shown). The power consumption information acquisition unit 31 outputs the stored power consumption information to the notification unit 35.

[0025] The operation information acquisition unit 32 receives the operation information of the equipment E acquired by the operation status management device 2 from the operation status management device 2 and stores it in a storage unit (not shown). The operation information acquisition unit 32 outputs the stored operation information of the equipment E to the notification unit 35. The power consumption abnormality detection unit 33 detects an abnormality in power consumption based on the power consumption of the main line D stored in the power consumption information acquisition unit 31 and identifies the main line D where the power consumption abnormality has occurred. The power consumption abnormality detection unit 33 outputs the information (identification information) of the identified main line D to the notification unit 35.

[0026] The abnormal equipment identification processing unit 34 primarily identifies the equipment E in which abnormal power consumption has occurred based on the power consumption of the main line D acquired by the power consumption information acquisition unit 31 from the power consumption management device 1 and the operation information of the equipment E acquired by the operation information acquisition unit 32 from the operation status management device 2. Further, the abnormal equipment identification processing unit 34 secondarily identifies, that is, re-identifies, the equipment E in which abnormal power consumption has occurred based on the power consumption of the equipment E acquired from the equipment power measuring device 6 and the operation information of the equipment E acquired from the operation information acquisition unit 32. The processing of these identifications and re-identifications will be described in detail later. The abnormal equipment identification processing unit 34 transmits the information of the identified and re-identified equipment E to the notification unit 35 respectively.

[0027] The notification unit 35 outputs the information received from the power consumption information acquisition unit 31, the operation information acquisition unit 32, the power consumption abnormality detection unit 33, and the abnormal equipment identification processing unit 34 so that the user can grasp it.

[0028] <Abnormal Equipment Identification Method> The abnormal equipment identification method by the abnormal equipment identification device 3 according to the first embodiment will be described. FIG. 3 is a flowchart of the abnormal equipment identification method by the abnormal equipment identification device 3 according to the first embodiment.

[0029] First, the power consumption information acquisition unit 31 receives the power consumption of the main line D from the power consumption management device 1 via the IOT platform 4 and stores it in a storage unit (not shown) (step S101). Next, the power consumption abnormality detection unit 33 detects an abnormality in the power consumption of the main line D acquired and stored by the power consumption information acquisition unit 31, and identifies the main line D in which the abnormality has occurred (step S102). The method for detecting an abnormality in power consumption will be described in detail later. Next, the operation information acquisition unit 32 receives the operation information of the facility E from the operation status management device 2 and stores it in a storage unit (not shown) (step S103). Next, the abnormal facility identification processing unit 34 identifies the facility E in which an abnormality in power consumption has occurred (step S104). Based on the power consumption of the main line D identified as having an abnormality in step S102 and the operation information of the facility E connected to the main line D, the abnormal facility identification processing unit 34 identifies the facility E in which an abnormality in power consumption has occurred. The method for identifying the facility E in which an abnormality in power consumption has occurred in step S104 will be described in detail later.

[0030] Next, after identifying the facility E in which an abnormality in power consumption has occurred, the user individually measures the power consumption of the identified facility E using the facility power meter 6. The power consumption information acquisition unit 31 receives the power consumption of the facility E measured by the facility power meter 6 from the facility power meter 6 and stores it (step S105). Finally, the abnormal facility identification processing unit 34 re-identifies the facility E in which an abnormality in power consumption has occurred (step S106). Based on the operation information of the facility E connected to the main line D identified as having an abnormality in step S102 and the power consumption of the facility E identified as the facility in which an abnormality has occurred, received from the facility power meter 6 in step S105, the abnormal facility identification processing unit 34 re-identifies the facility E in which an abnormality in power consumption has occurred. In these steps, the received power consumption, operation information, information on the identified and re-identified facility E, etc. are appropriately output to the notification unit 35 so that the user can grasp them.

[0031] When there are multiple facilities E identified in step S104, there is a possibility that the cause of the abnormality includes facilities E that do not consume power. Therefore, in step S105, by individually measuring the power consumption of facilities E, the facilities E whose abnormal cause is due to power consumption are re-identified. Thus, when the number of facilities E identified in step S104 is, for example, one, and it can be determined that the cause of the abnormality of the identified facilities E is due to power consumption, re-identification is not necessary, so steps S105 and S106 do not need to be executed.

[0032] <Method for Detecting Abnormality in Power Consumption in Main Line> Referring to FIG. 4, a method (step S102) for detecting an abnormality in the power consumption in the main line D in the power consumption abnormality detection unit 33 will be described. FIG. 4 is a flowchart of a method for detecting an abnormality in the power consumption in the main line according to Embodiment 1.

[0033] The power consumption abnormality detection unit 33 detects an abnormality in the power consumption in the main line D based on the power consumption of the main line D stored in the power consumption information acquisition unit 31 in step S101. Specifically, the user determines in advance a threshold value of the power consumption in the main line D that serves as a criterion for determining an abnormality in the power consumption and sets it in the power consumption abnormality detection unit 33. In a typical example, the threshold value includes information on the upper limit value and the lower limit value of the power consumption determined to be normal. The power consumption abnormality detection unit 33 compares the power consumption of the main line D stored in the power consumption information acquisition unit 31 with the predetermined threshold value of the power consumption for the corresponding main line D (step S201).

[0034] In step S101, when the power consumption of the main line D stored in the power consumption information acquisition unit 31 is greater than or equal to the upper limit of the threshold value, or less than or equal to the lower limit, the power consumption abnormality detection unit 33 determines that an abnormality has occurred in the power consumption of the main line D (step S202). Then, the abnormal equipment identification device 3 executes step S103. On the other hand, if the power consumption of the main line D stored in the power consumption information acquisition unit 31 in step S101 is less than the upper limit of the threshold value and exceeds the lower limit, the power consumption abnormality detection unit 33 determines that the power consumption of the main line D is normal. When it is determined that the power consumption of the main line D is normal, the abnormal equipment identification device 3 does not execute step S103.

[0035] <Method for identifying equipment with abnormal power consumption> Referring to FIG. 5, a method for identifying equipment with abnormal power consumption (step S104) in the abnormal equipment identification processing unit 34 will be described. FIG. 5 is a flowchart of a method for identifying equipment with abnormal power consumption according to Embodiment 1.

[0036] Based on the power consumption of the main line D stored in the power consumption information acquisition unit 31 in step S101 and the operation information of the equipment E stored in the operation information acquisition unit 32 in step S103, the abnormal equipment identification processing unit 34 identifies the equipment E with abnormal power consumption among the equipment E connected to the main line D with abnormal power consumption. First, the abnormal equipment identification processing unit 34 compares the power consumption of the main line D stored in the power consumption information acquisition unit 31 with a predetermined power consumption threshold value for the corresponding main line D (step S401). The power consumption threshold value in this step S401 is the same as the power consumption threshold value used in step S201. Also, this step S401 is a step after it is determined in step S202 that an abnormality has occurred in the power consumption of the main line D. Therefore, it is assumed that the acquired power consumption of the main line D is greater than or equal to the upper limit of the threshold value, or less than or equal to the lower limit.

[0037] In step S401, when the power consumption of the main line D is equal to or higher than the upper limit of the threshold value, the abnormal equipment identification processing unit 34 extracts the operating equipment E connected to the main line D where the abnormal power consumption has occurred, based on the operating information of the equipment E stored in the operation information acquisition unit 32 in step S103 (step S402). Next, in the same manner as step S402, the abnormal equipment identification processing unit 34 extracts the equipment E where an abnormality or warning has occurred and that is connected to the main line D where the power abnormality has occurred, based on the operating information of the equipment E stored in the operation information acquisition unit 32 in step S103 (step S403). Next, the abnormal equipment identification processing unit 34 extracts the equipment E extracted in both steps S402 and S403 (step S404). Then, the equipment E extracted in step S404 is output to the notification unit 35 as the equipment E where an abnormality has occurred. The order of steps S402 and S403 may be reversed.

[0038] On the other hand, in step S401, when the power consumption of the main line D is equal to or lower than the lower limit of the threshold value, the abnormal equipment identification processing unit 34 extracts the equipment E that is in a stopped or emergency stop state and is connected to the main line D where the power abnormality has occurred, based on the operating information of the equipment E stored in the operation information acquisition unit 32 in step S103 (step S405). Then, the abnormal equipment identification processing unit 34 outputs the equipment E extracted in step S405 to the notification unit 35 as the equipment E where an abnormality has occurred.

[0039] The state of the equipment E identified as abnormal in steps S404 and S405 can be estimated as follows. Since the equipment E identified in step S404 has a power consumption equal to or higher than the upper limit of the threshold value detected in the main line D, it is estimated that an equipment abnormality has occurred due to a cycle time overrun or the like. On the other hand, since the equipment E identified in step S405 has a power consumption equal to or lower than the lower limit of the threshold value detected in the main line D, it is estimated that a sudden emergency stop or operation stop has occurred.

[0040] Note that the present invention is not limited to the above-described embodiments, and can be appropriately modified without departing from the spirit thereof.

[0041] Examples of the utilization of the present invention include, for example, carbon footprint countermeasures. In order to calculate the CO2 emissions per product, it is necessary to obtain the power consumption per main line unit and divide it by the number of products produced to calculate the power consumption per product. Therefore, when submitting the CO2 emissions per product, if there is an abnormality in the power consumption per product, it is required to explain the cause of the abnormality. Thus, according to the present invention, it is possible to collect information necessary for identifying the cause of the abnormality in the power consumption per product, such as identifying the equipment E in which the abnormality has occurred and the trend of the power consumption of the equipment E in which the abnormality has occurred.

[0042] Further, the present disclosure can also be realized by causing a CPU (Central Processing Unit) to execute part or all of the processing of the abnormal equipment identification device 3 as an abnormal equipment identification program.

[0043] The above program can be stored using various types of non-transitory computer readable media and supplied to a computer. Non-transitory computer readable media include various types of tangible storage media. Non-transitory computer readable media include, for example, magnetic recording media, magneto-optical recording media, CD-ROM (Read Only Memory), CD-R, CD-R / W, and semiconductor memories. Magnetic recording media include, for example, flexible disks, magnetic tapes, and hard disk drives. Magneto-optical recording media include, for example, magneto-optical disks. Semiconductor memories include, for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, and RAM (Random Access Memory). Also, the program may be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. Transitory computer readable media can supply the program to the computer via wired communication channels such as electric wires and optical fibers, or wireless communication channels.

Explanation of Signs

[0044] 1 Power consumption management device 2 Operating status management device 3 Abnormal equipment identification device 4 IoT platform 5 Main power line measuring device 6 Equipment power measuring device 7 Main distribution board 8 Distribution board 9 Quality control board 31 Power consumption information acquisition unit 32 Operating information acquisition unit 33 Power consumption abnormality detection unit 34 Abnormal equipment identification processing unit 35 Notification unit 100 Equipment Management System D Trunk Line d Equipment Power Line E Equipment

Claims

1. An abnormal equipment identification system for identifying equipment in which an abnormality has occurred among a plurality of pieces of equipment each connected to a plurality of main lines, a power consumption information acquisition unit that acquires power consumption in units of main lines; an operation information acquisition unit that acquires operation information for each of the plurality of pieces of equipment; based on the power consumption acquired by the power consumption information acquisition unit, identifying the main line in which a power abnormality has occurred, and based on the power consumption of the identified main line and the operation information of the equipment acquired by the operation information acquisition unit, an abnormal equipment identification processing unit for identifying the equipment in which an abnormality in power consumption has occurred, An abnormal equipment identification system.

2. The abnormal equipment identification processing unit compares the power consumption of the main line unit acquired by the power consumption information acquisition unit with a preset power consumption threshold value for the corresponding main line, when the acquired power consumption of the main line is equal to or higher than the upper limit of the corresponding threshold value, identifying the equipment specified as being in operation based on the operation information as the equipment in which an abnormality has occurred, The abnormal equipment identification system according to claim 1.

3. The abnormal equipment identification processing unit compares the power consumption of the main line unit acquired by the power consumption information acquisition unit with a preset power consumption threshold value for the corresponding main line, when the acquired power consumption of the main line is equal to or lower than the lower limit of the corresponding threshold value, identifying the equipment specified as being in a stopped state based on the operation information as the equipment in which an abnormality has occurred, The abnormal equipment identification system according to claim 1.

4. The abnormal equipment identification processing unit outputs the equipment identified as the equipment in which an abnormality has occurred, further acquires the power consumption individually measured for the equipment, and re-identifies the equipment in which an abnormality in power consumption has occurred based on the power consumption of the equipment and the operation information, The abnormal equipment identification system according to claim 2 or 3.

5. An abnormal equipment identification program for identifying equipment in which an abnormality has occurred among a plurality of equipment connected to each of a plurality of main lines, Based on the power consumption per main line and the operation information of each of the plurality of equipment, a process of identifying equipment in which an abnormal power consumption has occurred, An abnormal equipment identification program that causes a computer to execute.

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