JP7292070B2 - Supervisory control device and failure prediction method - Google Patents

Description

The present application relates to a supervisory control device.

The monitoring control device acquires the status signal and the failure signal of the equipment to be monitored and performs monitoring control. Normally, the monitoring control device holds signal information necessary for monitoring and control as data.
On the other hand, an anomaly prediction/lifetime management system has been proposed that predicts the life of a monitored device based on a status signal and performs maintenance before an anomaly occurs (Patent Document 1).

In Patent Document 1, although the equipment to be monitored and the monitoring system are connected and the diagnostic information is transmitted in real time, since each system is constructed independently, the equipment to be monitored and the operating status of the equipment can be monitored. Maintenance information cannot be grasped at the same time.

Also, there is known a facility information management system capable of downloading a list of facility information stored in another server when an abnormality occurs (Patent Document 2).
In Patent Literature 2, it is possible to obtain information necessary for coping with an abnormality from an obtained equipment information list, and to take measures for equipment in which an abnormality has occurred.

Japanese Patent Application Laid-Open No. 2003-050617 Japanese Patent Application Laid-Open No. 2010-026778

Conventional monitoring and control systems perform anomaly prediction for a piece of equipment, or respond to anomalies that have occurred, and extract related equipment in order to refer to equipment in which anomalies have occurred in the past and how to deal with them. However, based on the information of the equipment in which the abnormality has occurred, it does not predict the failure of the equipment related to the equipment in which the abnormality has occurred. Although there are variations in the service life of equipment, there is a possibility that an abnormality will occur in other equipment at the same time as the equipment in which the abnormality occurred, for example, for equipment of the same type that was manufactured at the same time. Confirmation is useful for equipment management.

The present application discloses a technique for solving the above-described problems, and an object of the present application is to enable support for maintenance work by incorporating information regarding maintenance of monitored equipment into a monitoring control device.

A supervisory control device disclosed in the present application is a supervisory control device that performs supervisory control using supervisory control signals acquired from a plurality of monitored equipment provided in a monitored facility, wherein data for accumulating the supervisory control signals an accumulation unit, a management database having management item information linking the accumulated monitoring control signal and the monitored equipment , and a predetermined signal among the analog signals of the monitoring control signal as a measurement signal. a trend database for storing a predetermined period of time; a history database for storing an operation history of the monitoring target equipment for a predetermined period of time; a data extracting unit for extracting the maintenance information of the monitoring target equipment from the equipment maintenance device storing the maintenance information including the management item information of the monitoring target equipment; When a facility with an abnormality occurs among the monitoring target facilities, the data extracting unit performs maintenance of the facility in which the abnormality has occurred and the facility related to the facility in which the abnormality has occurred, among the plurality of monitoring target facilities. Information is extracted from the equipment maintenance device, and the maintenance information, measurement signals, and operation history of equipment related to the equipment in which the abnormality occurred, and the maintenance information, measurement signals, and operation history of the equipment in which the abnormality occurred are displayed on the display unit. to predict the failure of equipment related to the equipment in which the abnormality has occurred .

According to the monitoring control device disclosed in the present application, when an abnormality occurs, the equipment related to the equipment in which the abnormality has occurred is extracted, and the maintenance information of the equipment is displayed. It is possible to extract equipment that may cause a failure, and to support maintenance activities.

1 is a schematic configuration diagram showing a monitoring control device according to Embodiment 1; FIG. 4 is a diagram showing an example of screen display of the display unit of the monitoring control device according to Embodiment 1; FIG. 4 is a diagram showing an example of data stored in a management database of the monitoring control device according to Embodiment 1; FIG. It is a figure which shows the data example stored in the equipment information database of an equipment maintenance apparatus. It is a figure which shows the data example stored in the inspection information database of an equipment maintenance apparatus. 4 is a flow chart showing the operation of the monitoring control device according to Embodiment 1; FIG. 5 is a diagram showing a display example of an output result in the monitoring control device according to Embodiment 1; FIG. 9 is a diagram showing another display example of the output result in the monitor control device according to the first embodiment; 9 is a flow chart showing the operation of the monitoring control device according to Embodiment 2; FIG. 10 is a diagram showing a display example of an output result in the monitor control device according to the second embodiment; FIG. 11 is a schematic configuration diagram showing a monitoring control device according to Embodiment 3; FIG. 10 is a diagram showing an example of data stored in a history database of a monitoring control device according to Embodiment 3; FIG. FIG. 12 is a diagram showing an example of data stored in a trend database of the monitoring control device according to Embodiment 3; FIG. 10 is a flow chart showing the operation of the monitoring control device according to Embodiment 3; FIG. 10 is a diagram showing a display example of an output result in the monitoring control device according to Embodiment 3; FIG. 12 is a diagram showing another display example of the output result in the monitor control device according to the third embodiment; 1 is a configuration diagram showing an outline of hardware of a monitoring control device according to an embodiment; FIG.

Hereinafter, embodiments of a monitoring control device disclosed in the present application will be described with reference to the drawings. In addition, in each figure, the same code|symbol shall show the same or a corresponding part.
In the embodiment, the facility to be monitored is a building, and an example of monitoring and controlling facilities such as air conditioning equipment, lighting, security-related equipment, disaster prevention-related equipment, and water supply and drainage equipment provided on each floor will be described. It is also applicable to factory equipment and the like.

Embodiment 1.
A monitoring control apparatus according to Embodiment 1 will be described below with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing a monitoring control device according to Embodiment 1. FIG. The monitoring control device 100 collects status signals relating to the operation of equipment 1100 provided in the monitoring target device or facilities 1000 to be monitored and failure signals relating to abnormalities via the relay device 2000, which is a communication device. These status signals and failure signals are monitoring control signal data used for operation of the monitoring control device 100 , are input from the data input/output unit 101 and stored in the data storage unit 102 . The status signal and the failure signal are linked to the management item information stored in the management database 103 and displayed on the display screen of the display unit 110 . Also, the display unit 110 can be operated from the screen. The data extraction unit 104 appropriately extracts information on the equipment 1100 to be monitored from the equipment information database 210 and the inspection information database 220 provided in the equipment maintenance device 200 and outputs the extracted information to the display unit 110 .
In addition, below, "facility equipment" is called "equipment."

FIG. 2 is a diagram showing an example of the monitor control status displayed on the screen of the display unit 110. As shown in FIG.
The target of the monitoring control of the present embodiment will be described as the air conditioner on the sixth floor of building A. FIG. Therefore, FIG. 2 shows the operation status of the air conditioning equipment on the 6th floor. The individual air conditioning equipment indicated by the symbol 111 constitutes a plurality of sub-systems 112 in sets of, for example, two each, and is shown to cover the entire air conditioning equipment on the sixth floor. For example, the sub-system 112B is equipped with two air conditioners 111c and 111d, and the air conditioner 111c blinks and issues an alarm of abnormality. In the figure, 112B1 and the like are display units for status signals of the sub system 112B and the like, and 111c1 and the like are display units for status signals and the like of the air conditioner 111c.

FIG. 3 is a diagram showing an example of display and management item information stored in the management database 103. As shown in FIG. The status signals and failure signals stored in the data accumulation unit 102 are displayed at appropriate locations on the screen of the display unit 110 by linking them to each item of this management database.

FIG. 4 is a diagram showing an example of equipment information stored in the equipment information database 210 of the equipment maintenance device 200. As shown in FIG. It is information related to the manufacture of the equipment 1100 provided in the facility 1000 to be monitored, and includes at least the type and date of manufacture of the equipment. For example, the type includes the manufacturer, model, product name, and serial number of the facility, and information such as date of manufacture (date of manufacture), date of installation, service life, etc. is stored for each facility. Further, the facility information stored in the facility information database 210 holds display and management item information stored in the management database 103 shown in FIG.

FIG. 5 is a diagram showing an example of inspection information stored in the inspection information database 220 of the equipment maintenance device 200. As shown in FIG. This is information about the inspection of the equipment 1100 of the facility 1000 to be monitored, and information such as daily inspections, periodic inspections, overhauls, etc., inspection dates, inspection cycles, and next schedules are stored for each equipment. Also, the inspection information stored in the inspection information database 220 has display and management item information stored in the management database 103 shown in FIG.
The equipment information shown in FIG. 4 and the inspection information shown in FIG. 5 are equipment maintenance information, and may be data compiled as an equipment management ledger.

Next, the operation of the monitoring control device 100 according to the first embodiment will be explained using the flowchart of FIG.
First, in step S101, the air conditioning equipment 111c issuing an abnormal alarm is selected on the display unit 110 of FIG. The management item information is information stored in the management database 103, and it suffices here to include at least the equipment number.

In step S102, the data extraction unit 104 acquires the facility information of the selected facility from the facility information database 210 of the facility maintenance device 200 based on the acquired item information or facility number. At this time, the inspection information of the selected equipment may be obtained from the inspection information database 220 .

In step S103, the data extraction unit 104 extracts related equipment based on the equipment information of the selected equipment. Here, related equipment means equipment of the same type, for example, the selected equipment has the same manufacturer, the same model, and a similar serial number (the serial number is within a predetermined number range). manufactured within a predetermined period of time including the manufacturing date (manufacturing date) of the selected equipment. Also, equipment numbers may be attached in advance so that equipment of the same type can be linked, and equipment with equipment numbers within a predetermined number range may be regarded as related equipment. The data extraction unit 104 uses the item of the equipment information of the selected equipment as an extraction condition and acquires the information of the related equipment from the equipment information database 210 of the equipment maintenance device 200 . At the same time, the inspection information of the related equipment is obtained from the inspection information database 220 .

In step S104, the display unit 110 displays the maintenance information (equipment information and inspection information) of the extracted related equipment.
FIG. 7 shows an example of the equipment information of the extracted related equipment, and the equipment information of the extracted related equipment is output for each case.
FIG. 8 shows a list of extracted related facilities. Maintenance information is shown with the selected equipment.
Items enclosed in square frames in FIGS. 7 and 8 are used as extraction conditions. Here, the extraction conditions are that the equipment numbers are similar within a predetermined number range, the equipment/equipment names and manufacturers are the same, and the manufacturing date is within a predetermined period.

As described above, according to the first embodiment, when an abnormal equipment occurs, the equipment related to the abnormal equipment is extracted, the maintenance information of the equipment is acquired, and the abnormal equipment Since it is possible to compare with the equipment, it is possible to predict and extract equipment that may have a failure, and it is possible to support maintenance activities.

Embodiment 2.
A monitoring control apparatus according to Embodiment 2 will be described below with reference to FIGS. 9 and 10. FIG.
In Embodiment 1, the maintenance information of the equipment related to the selected equipment is displayed, but the maintenance information of the selected equipment may also be displayed.

FIG. 9 is a flow chart showing the operation of the monitoring control device according to the second embodiment. Since steps S101 to S104 are the same as those in the first embodiment, description thereof will be omitted. After step S102, the data extraction unit 104 acquires the inspection information of the selected equipment from the inspection information database 220 of the equipment maintenance device 200 and outputs it to the display unit 110 in step S203.

In step S204, display unit 110 displays the maintenance information of the selected equipment.
FIG. 10 shows an output example of the maintenance information of the selected equipment and has the same notation as the information of the related equipment in FIG. As a digest version of the equipment management ledger, it is possible to output equipment information and inspection information together as shown in FIG. It may be used as information.

As described above, in addition to the effect of the first embodiment, by displaying the maintenance information of the selected equipment, it is possible to immediately check the details such as the inspection history of the selected equipment, that is, the equipment in which an abnormality has occurred. It can be used as a reference to deal with. Furthermore, it is possible to extract equipment that may fail, and by comparing the maintenance information of equipment related to the selected equipment with the maintenance information of the selected equipment, maintenance can be performed more efficiently than in the first embodiment. Support information for activities increases.

Embodiment 3.
A monitoring control apparatus according to Embodiment 3 will be described below with reference to FIGS. 11 to 16. FIG.
FIG. 11 is a schematic configuration diagram showing a monitoring control device according to Embodiment 3. As shown in FIG. A history database 105 and a trend database 106 are further provided in the monitoring control device 100 according to the first and second embodiments. The history database 105 stores data including the operation history of the facility 1100, the number of operations, and event information such as inspections. The trend database 106 stores measurement data of analog signals such as current, voltage, and temperature among the state signals obtained from the equipment 1100, which are sampled at fixed intervals and accumulated and held for a fixed period of time.

FIG. 12 shows an example of history information stored in the history database 105. As shown in FIG. For each piece of equipment 1100, it includes, for example, basic operation mode, operation history, and event information such as daily inspection and stoppage. For the operation mode, for example, if it is an air conditioner, it is set to operation mode A that operates during the time period when people are present, and if it is security or disaster prevention related equipment, it is set to operation mode B that operates day and night. The operation mode suitable for the equipment may be selected from among them. Also, the accumulation period of history information is, for example, about three months.

FIG. 13 shows an example of trend information stored in the trend database 106, which is measurement data of individual facilities 1100. As shown in FIG. A measurement item and a sampling period are determined for each measurement item as measurement conditions, and accumulated for a certain period of time. For example, the sampling period is selected from 30 seconds, 1 minute, 5 minutes, 10 minutes, 30 minutes, and 60 minutes, and the accumulation period is, for example, about 3 months. This measurement data is a database for displaying trend information.

FIG. 14 is a flow chart showing the operation of the monitoring control device 100 according to the third embodiment. Steps S101 to S104 are the same as in Embodiments 1 and 2, and Steps S203 and S204 are the same as in Embodiment 2, so the description is omitted.
After step S204, in step S305, if the analog measurement signal among the status signals 111c1 of the air conditioner 111c in FIG. 2 is clicked, history information is displayed. Here, it is assumed that the state signal 111c1 is temperature.

Subsequently, in step S306, trend information is similarly displayed by clicking the analog measurement signal among the status signals 111c1 of the air conditioner 111c. It is also assumed here that the status signal 111c1 is the temperature.
In steps S305 and S306, when the analog measurement signal is clicked among the status signals 111c1 of the air conditioner 111c in FIG. 2, another window (small screen) is set on the screen of the display unit 110, and Either history information display or trend information display may be selected. Alternatively, both may be selected.

FIG. 15 shows an output example when history information display and trend information display are selected in steps S305 and S306. The dashed line indicates the operation history, and the solid line indicates the temperature change. By graphing history data and graphing measurement data as trend data in this way, it is possible to grasp the situation until the occurrence of an abnormality, that is, the failure of equipment.
FIG. 16 shows the graph of FIG. 15 displayed on the screen of the display unit 110. As shown in FIG.
In this way, by displaying the situation until the failure of the equipment as a graph, it is possible to provide superior information for analysis of the tendency of deterioration of the equipment.

The history data and trend data of the equipment 1100 can be graphed not only from the above-described abnormal equipment, but also from any equipment. For example, the history data and trend data of the equipment selected as described above, that is, the equipment in which an abnormality has occurred are graphed, and on the other hand, based on the maintenance information related to the selected equipment acquired in the first embodiment, the history of each equipment By graphing and comparing the data and trend data, it becomes possible to extract equipment showing similar progress, and the accuracy of failure prediction is improved.
From the maintenance information of the selected equipment acquired in Embodiment 1 or the maintenance information related to the selected equipment, the corresponding equipment is displayed on the screen of the display unit 110, and the symbol of the equipment or the status signal of the equipment is displayed. By clicking on the display, it is possible to acquire various types of information on the corresponding facility.

In FIG. 14, when displaying only the history data and trend data of the selected equipment in which an abnormality has occurred, steps S203 and S204 may be skipped and maintenance information may not be obtained.

As described above, in the third embodiment, the history data and trend data of the selected equipment, that is, the equipment in which an abnormality has occurred, are displayed. It is possible to provide superior information for analysis of the deterioration tendency of In addition, the history data and trend data of the selected equipment, that is, the equipment in which an abnormality has occurred, and the history data and trend data of equipment related to the selected equipment are displayed together, and similar progress is shown by sequentially comparing them. Equipment can be extracted, improving the accuracy of failure prediction.

Note that the monitoring control apparatus 100 according to Embodiments 1 to 3 is composed of a processor 3100 and a storage device 3200 as shown in FIG. 17 as an example of hardware. Although not shown, the storage device includes a volatile storage device such as a random access memory and a non-volatile auxiliary storage device such as a flash memory. Also, an auxiliary storage device such as a hard disk may be provided instead of the flash memory. Processor 3100 executes programs input from storage device 3200 . In this case, the program is input from the auxiliary storage device to the processor 3100 via the volatile storage device. Further, the processor 3100 may output data such as calculation results to the volatile storage device of the storage device 3200, or may store the data in the auxiliary storage device via the volatile storage device.

While this application describes various exemplary embodiments and examples, various features, aspects, and functions described in one or more embodiments may not apply to particular embodiments. can be applied to the embodiments singly or in various combinations.
Accordingly, numerous variations not illustrated are envisioned within the scope of the technology disclosed herein. For example, modification, addition or omission of at least one component, extraction of at least one component, and combination with components of other embodiments shall be included.

100: supervisory control device, 101: data input/output unit, 102: data storage unit,
103: management database, 104: data extraction unit, 105: history database,
106: trend database, 110: display unit, 111: symbol,
112: sub-system, 200: equipment maintenance device,
210: equipment information database, 220: inspection information database,
1000: facility to be monitored (device to be monitored), 1100: facility (equipment),
2000: relay device, 3100: processor, 3200: storage device.

Claims (7)

A supervisory control device that performs supervisory control using supervisory control signals acquired from a plurality of monitored facilities provided in a monitored facility,
a data accumulation unit for accumulating the monitoring control signal;
a management database having management item information linking the accumulated monitoring control signals and the equipment to be monitored;
a trend database that stores a predetermined signal as a measurement signal for a predetermined period from among the analog signals of the monitoring control signal;
a history database that stores the operation history of the monitored equipment for a predetermined period;
a display unit that displays the accumulated monitoring control signal in association with the monitored equipment based on the management item information;
a data extracting unit for extracting maintenance information of the monitoring target equipment from an equipment maintenance device storing maintenance information including the management item information of the monitoring target equipment;
When a facility in which an abnormality has occurred among the plurality of monitoring target facilities,
The data extracting unit extracts from the equipment maintenance device maintenance information of the equipment in which the abnormality has occurred and equipment related to the equipment in which the abnormality has occurred, among the plurality of equipment to be monitored, and display the maintenance information, the measurement signal and the operation history of the equipment related to the failure on the display unit, together with the maintenance information, the measurement signal and the operation history of the equipment in which the abnormality occurred, and the failure of the equipment related to the equipment in which the abnormality occurred A supervisory control device that predicts 2. The monitor and control device according to claim 1, wherein the measurement signal of the facility in which the abnormality has occurred is graphed and displayed on the display unit. 3. The monitor and control device according to claim 1, wherein the operation history of the facility in which the abnormality has occurred is graphed and displayed on the display unit. The maintenance information of the equipment maintenance device includes equipment information including information about at least the type and manufacturing date of the equipment to be monitored, and inspection information about inspection of the equipment, and the data extraction unit extracts the equipment in which the abnormality has occurred. acquires the equipment information of the equipment in which the abnormality has occurred from the equipment maintenance device based on the management item information of the above, and includes the manufacturing date of the equipment of the same type as the equipment in which the abnormality has occurred and in which the abnormality has occurred in advance 4. The supervisory control device according to any one of claims 1 to 3, wherein equipment manufactured in a specified period is extracted as the related equipment. 3. The monitor and control device according to claim 2, wherein the measurement signals of the equipment related to the equipment in which the abnormality has occurred are graphed and displayed on the display unit. 4. The monitoring and control device according to claim 3, wherein the operation history of the facility in which the abnormality has occurred and the related facility are graphed and displayed on the display unit. A failure prediction method using a supervisory control device,
The monitoring control device is
a data accumulation unit for accumulating monitoring control signals acquired from a plurality of monitored facilities provided in a monitored facility;
a management database having management item information linking the accumulated monitoring control signals and the equipment to be monitored;
a display unit that displays the accumulated monitoring control signal in association with the monitored equipment based on the management item information;
a data extracting unit for extracting maintenance information of the monitoring target equipment from an equipment maintenance device storing maintenance information including the management item information of the monitoring target equipment,
Acquiring the monitoring control signal to monitor the occurrence of an abnormality in the equipment,
When a facility in which an abnormality has occurred among the plurality of monitoring target facilities,
extracting maintenance information of equipment related to the equipment in which the abnormality has occurred from the maintenance information of the plurality of monitoring target equipment stored in advance;
displaying the maintenance information of the equipment in which the abnormality has occurred and the maintenance information of the equipment related to the equipment in which the abnormality has occurred in comparison;
A predetermined signal among the analog signals of the monitoring control signals of the plurality of monitoring target equipment stored in advance for the equipment in which the abnormality occurred and the equipment related to the equipment in which the abnormality occurred, is used as a measurement signal. display each
Furthermore, for the equipment in which the abnormality occurred and the equipment related to the equipment in which the abnormality occurred, the operation history of the monitoring target equipment stored in advance is displayed,
A failure prediction method for performing failure prediction for equipment related to the equipment in which the abnormality has occurred.

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