JP2022043907A - Monitoring device and control method - Google Patents

Abstract

To display a trend graph corresponding to a desired abnormal event in a display mode suitable for user confirmation.SOLUTION: In a monitoring device (1), a control unit (10) extracts a target abnormal event candidate from an event information DB (23) using a search condition input by a user in an input unit (30). The control unit (10) acquires an occurrence time of the target abnormal event, which is an occurrence time of the target abnormal event selected from the target abnormal event candidates by the user, from the event information DB (23), and the control unit sets a trend graph display time range including the occurrence time of the target abnormal event. The control unit (10) acquires time-sequence data over the trend graph display time range from a measured value DB (22) for measured values corresponding to the target abnormal event, and the control unit displays the acquired time-sequence data as a trend graph on a display unit (31).SELECTED DRAWING: Figure 1

Description

One aspect of the present invention relates to a monitoring device that monitors a plurality of monitored devices.

Regarding the monitoring device, various techniques for assisting the monitoring work by the user (eg, the monitor of the monitored device) have been proposed. For example, in Patent Document 1, the user can easily grasp the occurrence of an abnormal event (abnormal event) in a certain monitored device, and the trend graph corresponding to the abnormal event (time of measured value corresponding to the abnormal event). A technique for easily confirming a graph showing a transition) is disclosed.

Japanese Patent No. 6625296

However, as will be described later, in the technique of Patent Document 1, it is assumed that the user cannot easily confirm the trend graph corresponding to the desired abnormal event (abnormal event that the user is paying attention to). An object of one aspect of the present invention is to display a trend graph corresponding to a desired abnormal event in a display mode suitable for user confirmation.

In order to solve the above problems, the monitoring device according to one aspect of the present invention is a monitoring device that monitors a plurality of monitored devices, and the monitoring device is a plurality of monitoring devices in each of the plurality of monitored devices. A measurement value database in which time-series data of each type of measurement value is recorded, an event information database in which information related to an event occurring in each of the above-mentioned plurality of monitored devices is recorded, and user input are accepted. The monitoring device is communicably connected to the input unit and the display unit, and the monitoring device uses the search conditions input to the input unit by the user to obtain at least one of the search conditions from the event information database. The target abnormal event candidate, which is one abnormal event, is extracted, and the target abnormal event occurrence time, which is the occurrence time of the target abnormal event selected by the above user from the target abnormal event candidates, is acquired from the above event information database, and the above. The trend graph display time range including the target abnormal event occurrence time is set, and the time series data over the trend graph display time range is acquired from the measured value database for the measured values corresponding to the target abnormal event. The time-series data is displayed on the above display as a trend graph.

Further, in order to solve the above problems, the control method according to one aspect of the present invention is a control method for controlling a monitoring device that monitors a plurality of monitored devices, and the monitoring device is a plurality of monitoring devices. A measurement value database in which time-series data of each of a plurality of types of measurement values in each of the target devices is recorded, and an event information database in which information related to an event occurring in each of the above-mentioned plurality of monitoring target devices is recorded. And the input unit that accepts the user's input and the display unit are communicably connected, and the control method uses the search conditions input by the user to the input unit from the event information database. The process of extracting the target abnormal event candidate which is at least one abnormal event satisfying the above search condition and the target abnormal event occurrence time which is the occurrence time of the target abnormal event selected by the user from the target abnormal event candidates are set. The trend graph display time from the measured value database for the process of acquiring from the event information database, the process of setting the trend graph display time range including the target abnormal event occurrence time, and the measured values corresponding to the target abnormal event. It includes a step of acquiring time-series data over a range and displaying the acquired time-series data as a trend graph on the display unit.

According to one aspect of the present invention, a trend graph corresponding to a desired abnormal event can be displayed in a display mode suitable for user confirmation.

It is a block diagram which shows the structure of the main part of the monitoring system in Embodiment 1. FIG. It is a figure which illustrates the item list DB. It is a figure which illustrates the measured value DB. It is a figure which illustrates the event information DB. It is a figure which illustrates the trend graph display screen before the trend graph is displayed. It is a figure which illustrates the abnormal event search screen. It is a figure which illustrates the trend graph display screen after the trend graph is displayed. It is a figure which illustrates the flow of the trend graph display processing.

[Embodiment 1]
Hereinafter, the monitoring system 100 of the first embodiment will be described. For convenience of explanation, the members having the same functions as those described in the first embodiment are designated by the same reference numerals in the following embodiments, and the description thereof will not be repeated. Further, for the sake of brevity, the description of the same matters as those of the publicly known technology will be omitted.

(Overview of monitoring system 100)
FIG. 1 is a block diagram showing a configuration of a main part of the monitoring system 100. The monitoring system 100 is a system for monitoring the monitored device 1001 in the equipment 1000. The equipment 1000 is not particularly limited, but is, for example, a water receiving equipment. The monitoring system 100 includes a monitoring device 1 and a network 1100. The network 1100 is a communication network that connects the monitoring device 1 and the equipment 1000. As an example, the network 1100 is a wireless communication network. However, the network 1100 may be a wired communication network.

The monitored device 1001 in the example of FIG. 1 generically represents a plurality of (n) monitored devices (monitored device 1001a, monitored device 1001b, ..., And monitored device 1001n). n is an integer of 2 or more. In the present specification, the k-th monitored device is also referred to as the k-th monitored device. k is an integer greater than or equal to 1 and less than or equal to n. For example, the monitored device 1001a may be referred to as a first monitored device. The k-th monitored device is not particularly limited, but is, for example, an intake well.

In the equipment 1000 in the example of FIG. 1, n sensor groups 1002 corresponding to one-to-one are provided for n monitored devices 1001. The sensor group 1002 in the example of FIG. 1 generically represents n sensor groups (sensor group 1002a, sensor group 1002b, ..., And sensor group 1002n). In the present specification, the k-th sensor group (sensor group corresponding to the k-th monitored device) is also referred to as a k-th sensor group. For example, the sensor group 1002a (sensor group corresponding to the monitored device 1001a) may be referred to as a first sensor group.

The k-th sensor group includes a plurality of sensors for monitoring the state of the k-th monitored device at each time. As an example, the k-sensor group includes a water level sensor and a flow rate sensor. The k-th sensor group measures (detects) a plurality of types of measured values (detected values) related to the state of the k-th monitored device. The "time" in the present specification is an example of a "time point". Therefore, "time" can be appropriately read as "time point". The time in the present specification is expressed in the so-called "year / month / day / hour / minute / second" format ("yyyy / mm / dd / hh / mm / ss" format).

(Overview of monitoring device 1)
The monitoring device 1 includes a control unit 10, a storage unit 20, an input unit 30, and a display unit 31. Further, the monitoring device 1 includes a communication interface (not shown) for acquiring measured values (time-series data of measured values) at each time from the sensor group 1002 via the network 1100.

The control unit 10 comprehensively controls each unit of the monitoring device 1. The control unit 10 includes an abnormal event search unit 11, a display time range setting unit 12, and a display control unit 13. Specific examples of the operation of each functional unit of the control unit 10 will be described later. The storage unit 20 stores various data and programs used for the processing of the control unit 10. The item list DB (database) 21, the measured value DB 22 (measured value database), and the event information DB 23 (event information database) are stored in advance in the storage unit 20.

The input unit 30 is an input interface that accepts various input operations to the monitoring device 1 by the user. In the example of FIG. 1, the input unit 30 and the display unit 31 are shown as separate functional units. However, when a touch panel is used, the input unit 30 and the display unit 31 can be integrated. The display unit 31 displays various images in response to a command from the display control unit 13.

FIG. 2 is a diagram illustrating the item list DB 21. In the item list DB 21, various information about the type of each measured value of the monitored device 1001 is listed by item number. The item number is an identifier for distinguishing an item (hereinafter, simply an item) indicating the type of the measured value of the monitored device 1001.

In the item list DB 21, (i) the item name (name of the above item), (ii) the equipment ID (identifier of the equipment 1000 to which the monitored device 1001 belongs), and (iii) the equipment name (iii) for each item number. The name of the equipment 1000) is recorded. In the example of FIG. 2, the equipment ID “0001” is assigned to the equipment 1000 (water receiving equipment).

“No. 1 intake well” in the item list DB 21 is an example of the monitored device 1001. In the following description, "No. 1 intake well" refers to the monitored device 1001a. Item number "0001" and item number "0002" are the item "No. 1 intake well water level" (item indicating the water level of the monitored device 1001a) and the item "No. 1 intake well flow rate" (monitoring target device 1001a, respectively). It corresponds to the item indicating the flow rate). The water level and the flow rate of the monitored device 1001a are measured by the water level sensor and the flow rate sensor in the sensor group 1002a, respectively. In the example of FIG. 2, the item list DB 21 includes data 210. The data 210 corresponds to the item number “0001”. In other words, the data 210 corresponds to the item name "No. 1 intake well water level".

FIG. 3 is a diagram illustrating the measured value DB 22. The measured value DB 22 stores time-series data of the measured values of each item for each of the monitored devices 1001. The measured value DB 22 may be updated every time the monitoring device 1 acquires the measured value from the sensor group 1002.

In the example of FIG. 3, the measured value DB 22 includes the data 220. The data 220 shows the measured value of the item “No. 1 intake well water level” at a certain time (in the example of FIG. 3, the time “January 03, 2020 07:12:20”). The time corresponds to the time tb described later. In the example of FIG. 3, the data 220 indicates that the measured value at that time is "48.7". The unit of the measured value is m (meter) (see FIG. 7 described later).

FIG. 4 is a diagram illustrating the event information DB 23. In the event information DB 23, various information about the event that occurred in the equipment 1000 is listed according to the occurrence time of the event (hereinafter, simply the occurrence time). In the item list DB21, (i) event category, (ii) item number, (iii) item name, (iv) equipment ID, (v) equipment name, and (vi) event are displayed for each occurrence time. The contents (contents of the above event) are recorded. The event information DB 23 in the example of FIG. 4 includes data 230a and data 230b.

Data 230a shows information about an event that occurred at one time (in the example of FIG. 4, time "January 02, 2020 12:34:45") (also referred to as time ta for convenience). There is. The data 230a indicates that the event "upper limit abnormality occurred" occurred in ta with respect to the water level of the monitored device 1001a (item "No. 1 intake well water level"). The event is an example of an abnormal event. Hereinafter, the event recorded in the data 230a is also referred to as a first abnormal event for convenience.

The data 230b is information about an event that occurred at a time different from the above time (in the example of FIG. 4, the time "January 03, 2020 07:12:20") (also referred to as time tb for convenience). It is shown. The data 230b indicates that the event "upper limit abnormality occurred" occurred at tb with respect to the water level of the monitored device 1001a (item "No. 1 intake well water level"). Hereinafter, the event recorded in the data 230b is also referred to as a second abnormal event for convenience.

(Trend graph display screen before the trend graph is displayed)
The display control unit 13 has a trend when the input unit 30 receives a predetermined input operation by the user (eg, an input operation for starting an application program that executes a control method according to an aspect of the present invention). The graph display screen 500 is displayed on the display unit 31. The trend graph display screen 500 is a screen for presenting a trend graph (hereinafter, also simply referred to as “trend graph”) corresponding to a target abnormality event described later to the user.

The trend graph is a graph showing time-series data of a predetermined measured value (water level of the monitored device 1001a) of a predetermined monitored device corresponding to a target abnormality event. The trend graph can also be expressed as a graph showing the time transition of the predetermined measured value.

In the present specification, the trend graph display screen before the trend graph is displayed (in other words, the trend graph display screen before the target abnormality event is selected) is also referred to as a trend graph display screen 500a. FIG. 5 is a diagram showing an example of the trend graph display screen 500a. On the other hand, the trend graph display screen after the trend graph is displayed is also referred to as a trend graph display screen 500b. The trend graph display screen 500b will be described later.

The display control unit 13 displays the abnormal event search button 510, the sub area 520, and the graph area 530 in the trend graph display screen 500a. The sub-area 520 is an area in which various information related to the trend graph is displayed as text. The graph area 530 is an area where the trend graph is displayed. On the trend graph display screen 500a, no significant information is displayed in the sub area 520 and the graph area 530.

The abnormal event search button 510 is a button for switching the display screen of the display unit 31 to the abnormal event search screen 600 described below. As an example, when the input unit 30 receives a click operation for the abnormal event search button 510 by the user, the display control unit 13 causes the display unit 31 to display the abnormal event search screen 600.

(Abnormal event search screen)
FIG. 6 is a diagram showing an example of the abnormal event search screen 600. The display control unit 13 displays the search condition input area 610, the search button 620, the search result display area 630, and the selection completion button 640 in the abnormal event search screen 600.

The search condition input area 610 is an area for allowing the user to input search conditions. In the example of FIG. 6, the search condition input area 610 has (i) "start time" (start time of search target time range of abnormal event) and (ii) "end point time" (end point of search target time range of abnormal event). It contains five input lists: (time), (iii) "equipment name", (iv) item name, and (v) "search word". The search condition input by the user is displayed in the search condition input area 610.

In the example of FIG. 6,
(Search condition 1) Starting time: "January 01, 2000 00:00:00"
(Search condition 2) End time: "February 01, 2000 00:00:00"
(Search condition 3) Equipment name: "Not entered (blank)"
(Search condition 4) Item name: "No. 1 intake well water level"
(Search condition 5) Search word: "Abnormal upper limit occurs"
As you can see, the search conditions are entered by the user. The search conditions in the present specification collectively represent search conditions 1 to 5. However, it should be noted that, of course, the search conditions according to one aspect of the present invention are not limited to the example of FIG.

The search conditions 1 and 2 can also be expressed as "a condition for specifying the start time of the search target time range of the abnormal event" and "a condition for specifying the end time of the search target time range of the abnormal event", respectively. The search condition 3 can also be expressed as "a condition for designating the equipment to which the monitored device belongs". The search condition 4 can also be expressed as a condition that combines a "condition for designating the monitored device 1001" and a "condition for designating a measured value". The search condition 5 can also be expressed as "a condition for specifying the content of an abnormal event". The search condition 5 in the example of FIG. 6 may be understood as "a condition for designating the type of abnormal event".

The search button 620 starts the search for abnormal events satisfying the search conditions input by the user (search conditions input in the search condition input area 610) in the control unit 10 (more specifically, the abnormal event search unit 11). It is a button to make it. As an example, when the input unit 30 receives a click operation on the search condition input area 610 by the user, the abnormal event search unit 11 starts searching for an abnormal event satisfying the search condition.

Specifically, the abnormal event search unit 11 searches the event information DB 23 for abnormal events that satisfy the search conditions 1 to 5. A known data matching method may be used for searching for an abnormal event by the abnormal event search unit 11. The abnormal event search unit 11 extracts at least one abnormal event hit as a search result as a target abnormal event candidate.

In the example of FIG. 4, the first abnormal event (event recorded in the data 230a) and the second abnormal event (event recorded in the data 230b) both satisfy the search conditions 1 to 5. Therefore, the abnormal event search unit 11 extracts the first abnormal event and the second abnormal event as target abnormal event candidates (desired abnormal event candidates) from the event information DB 23.

The control unit 10 presents the search result (that is, the target abnormal event candidate) of the abnormal event search unit 11 to the user. Specifically, the display control unit 13 displays the target abnormal event candidate in the search result display area 630. In the example of FIG. 6, a plurality of search result display bars 632 are provided in the search result display area 630.

In the example of FIG. 6, the abnormal event search unit 11 acquires the first abnormal event information (information related to the first abnormal event) from the data 230a. As an example, the abnormal event search unit 11 has (i) ta (time of occurrence of the first abnormal event), (ii) item names related to the first abnormal event (No. 1 intake water level), and (iii) first. Information indicating the type of 1 abnormal event (occurrence of upper limit abnormality) is acquired as the first abnormal event information.

Similarly, the abnormal event search unit 11 acquires the second abnormal event information (information related to the second abnormal event) from the data 230b. The abnormal event search unit 11 has (i) tb (time of occurrence of the second abnormal event), (ii) item names related to the second abnormal event (No. 1 intake well water level), and (iii) second abnormal event. Information indicating the type (upper limit abnormality occurrence) is acquired as the second abnormal event information.

The display control unit 13 displays (i) the first abnormal event information on the first search result display bar 632 (referred to as the search result display bar 632a for convenience), and (ii) the second search result. The second abnormal event information is displayed on the display bar 632 (referred to as the search result display bar 632b for convenience). As shown in FIG. 6, the display control unit 13 determines the number of target abnormal event candidates (that is, the number of hits in the search result) extracted by the abnormal event search unit 11 (two in the example of FIG. 6). , May be displayed in the search result display area 630.

In the example of FIG. 6, in the search result display area 630, a plurality of check boxes 633 corresponding to one-to-one are provided in the plurality of search result display bars 632. The check box 633 is an example of a GUI (Graphical User Interface) for allowing the user to select a target abnormal event (desired abnormal event) from the target abnormal event candidates. The check box 633a and the check box 633b in FIG. 6 correspond to the search result display bar 632a and the search result display bar 632b, respectively. Therefore, check box 633a and check box 633b correspond to the first anomalous event and the second anomalous event, respectively.

FIG. 6 illustrates a case where the check box 633b is pressed by a user operation on the input unit 30 (that is, when the second abnormal event is selected by the user as the target abnormal event). The abnormal event search unit 11 selects a target abnormal event in response to a user selection operation (pressing the check box 633). In the example of FIG. 6, the abnormal event search unit 11 selects the second abnormal event as the target abnormal event.

Subsequently, the abnormal event search unit 11 acquires the target abnormal event occurrence time (target abnormal event occurrence time). Hereinafter, the time when the target abnormal event occurs is also referred to as time tev. In the example of FIG. 6, the abnormal event search unit 11 determines the tb recorded in the second abnormal event information (in the example of FIG. 4, the time “January 03, 2020 07:12:20”). Get as.

The display time range setting unit 12 sets the trend graph display time range (time range in which the trend graph should be displayed) on the trend graph display screen 500 according to the tv acquired by the abnormal event search unit 11. The trend graph display time range may be referred to as a trend graph display period. Hereinafter, the start time and the end time in the trend graph display time range are referred to as t1 and t2, respectively. The display time range setting unit 12 sets t1 and t2 according to tev.

Specifically, the display time range setting unit 12 sets the trend graph display period so that the tev is included in the trend graph display time range. That is, the display time range setting unit 12 sets t1 and t2 so that t1 <tev <t2. In the first embodiment, it is assumed that the initial value (T0) of the length of the trend graph display time range is set in advance. In the first embodiment, the case where T0 = 6h is illustrated.

In the first embodiment, the display time range setting unit 12 rounds (rounds) the tev (in the example of FIG. 6, the time “January 03, 2020 07:12:20”) in a predetermined time unit. Is set as the time tm. As an example, the display time range setting unit 12 sets the time when the tev is rounded up (rounded up) in 1-hour units as tm. The tm in the first embodiment may be referred to as a Roundup time. The round-up time is an example of the round time described later. In the example of FIG. 6, the display time range setting unit 12 sets the time “January 03, 2020 08:00:00” as the tm (Roundup time).

Then, the display time range setting unit 12 has the following equations (1) and (2),
t1 = tm-T0 / 2 ... (1)
t2 = tm + T0 / 2 ... (2)
To set t1 and t2, respectively. According to the above equations (1) and (2), t1 and t2 can be set so that tm is the center time of the trend graph display time range. In the example of FIG. 6, the display time range setting unit 12 sets (i) the time "January 03, 2020 05:00:00" as t1 and (ii) the time "January 03, 2020". "Day 11:00:00" is set as t2.

The selection completion button 640 is a button for switching the display screen of the display unit 31 to the trend graph display screen 500 again after the selection of the target abnormality event is completed. As an example, when the input unit 30 receives a click operation on the selection completion button 640 by the user, the display control unit 13 causes the display unit 31 to display the trend graph display screen 500 again. More specifically, the display control unit 13 causes the display unit 31 to display the trend graph display screen 500b described below.

(Trend graph display screen after the trend graph is displayed)
FIG. 7 is a diagram showing an example of the trend graph display screen 500b. The display control unit 13 displays the trend graph 540 in the graph area 530. Specifically, the display control unit 13 obtains time-series data of the measured values of the item corresponding to the target abnormality event (“No. 1 intake well” in the example of FIG. 7) from the measured value DB 22 from t1 to t2. Obtained over the range of. Then, the display control unit 13 displays the acquired time-series data as a trend graph 540 in the graph area 530.

Further, the display control unit 13 displays various information related to the trend graph as text in the sub area 520. In the example of FIG. 7, in the sub-area 520, (i) the equipment name corresponding to the target abnormality event (water receiving equipment), (ii) the item name corresponding to the target abnormality event (No. 1 intake well water level), (Iii) The measured value (48.7) at the time when the target abnormal event occurs, and (iv) the unit (m) of the measured value are displayed in text. The display control unit 13 may acquire the information of (i) and (ii) above from the data 230b.

As shown in FIG. 7, the display control unit 13 may further display auxiliary information 545 indicating the content (type) of the target abnormality event in the graph area 530. In the example of FIG. 7, the display control unit 13 displays the event content acquired from the data 230b as auxiliary information 545 as text.

(Flow of trend graph display processing in monitoring device 1)
FIG. 8 is a diagram illustrating the flow of the trend graph display process in the monitoring device 1. Prior to S1 in FIG. 8, it is assumed that the abnormal event search screen 600 is displayed on the display unit 31.

First, the input unit 30 accepts the input of the search condition by the user (S1). Subsequently, the control unit 10 searches for an abnormal event that satisfies the search condition. Specifically, the control unit 10 extracts a target abnormal event candidate, which is an abnormal event satisfying the search condition, from the event information DB 23 (S2).

Subsequently, the input unit 30 accepts a selection operation in which the user selects a target abnormal event from the target abnormal event candidates. Then, the control unit 10 selects the target abnormality event according to the selection operation (S3).

Subsequently, the control unit 10 acquires the target abnormal event occurrence time (tev) from the event information DB 23 (S4). Then, the control unit 10 sets the trend graph display time range according to tev (S5). In a specific example, the control unit 10 sets the trend graph display time range so that tev is included. In the first embodiment, the control unit 10 sets t1 and t2 using the above equations (1) and (2).

After that, when the input unit 30 receives the click operation for the selection completion button 640 by the user, the control unit 10 causes the display unit 31 to display the trend graph display screen 500b. Then, the control unit 10 acquires time-series data over the trend graph display time range from the measured value DB 22 for the measured value corresponding to the target abnormality event. Subsequently, the control unit 10 displays the acquired time-series data as a trend graph 540 in the graph area 530 (S6).

(effect)
In the prior art (eg, the technique of Patent Document 1), first, the user selects a measured value (monitoring data) for a desired monitored device. Then, the trend graph of the monitoring data is displayed in the graph area. In the technique of Patent Document 1, the trend graph display time range is set by the user. In the technique of Patent Document 1, the events generated within the trend graph display time range set by the user are further displayed in the graph area.

Therefore, in the technique of Patent Document 1, in order to display the trend graph corresponding to the desired abnormal event (target abnormal event) in the graph area, it is necessary for the user to set an appropriate trend graph display time range. rice field. That is, it is necessary for the user to manually set the trend graph display time range including the time when the desired abnormal event occurs (target abnormal event occurrence time). Therefore, the user needs to find out the target abnormality event occurrence time from each data stored in the monitoring device (in particular, each data stored in the event information storage unit and the abnormality cause diagram storage unit of Patent Document 1). there were. As described above, in the technique of Patent Document 1, the trend graph corresponding to the desired abnormal event is not always displayed in a display mode suitable for confirmation by the user. Therefore, in the technique of Patent Document 1, it is not always possible for the user to easily confirm the trend graph corresponding to the desired abnormal event.

On the other hand, according to the monitoring device 1, the user can first input the search condition for searching for the target abnormality event. Therefore, it is possible to present the target abnormal event candidate according to the search condition to the user. Subsequently, the user can be made to select a target abnormal event from the target abnormal event candidates.

Then, the monitoring device 1 acquires the tv (target abnormal event occurrence time) for the target abnormal event selected by the user. The monitoring device 1 sets the trend graph display time range according to tev. Specifically, the monitoring device 1 sets a trend graph display time range including tev. Subsequently, the monitoring device 1 displays the trend graph 540 in the graph area 530 using the set trend graph display time range.

As described above, according to the monitoring device 1, unlike the conventional technique, it is not necessary for the user to manually set the trend graph display period. In the first embodiment, the trend graph display time range including tev is automatically set by the monitoring device 1 according to the target abnormality event selected by the user. Therefore, according to the monitoring device 1, the trend graph corresponding to the desired abnormal event can be displayed in a display mode suitable for confirmation by the user. As described above, according to the monitoring device 1, it is possible to make the user confirm the trend graph corresponding to the desired abnormal event more easily than before.

(supplement)
The inventor of the present application (hereinafter referred to as the inventor) states, "When a user tries to view a trend graph, the main motive of the user is the target abnormality event at the time when the target abnormality event occurs and the time zone around it. It is thought that it is to check the corresponding trend graph. " Therefore, unlike the technique of Patent Document 1, the inventor created the monitoring device 1 so that the user can select the target abnormality event prior to the display of the trend graph. Nothing is mentioned in Patent Document 1 about the above idea. As described above, the monitoring device 1 is based on a technical idea different from the technique of Patent Document 1.

[Modification example]
(1) In the first embodiment, the display time range setting unit 12 rounds up (rounds up) the tv (example: time “January 03, 2020 07:12:20”) in predetermined time units. Is set as tm. However, the display time range setting unit 12 may set the time when the tev is rounded down (rounded down) in a predetermined time unit as tm. In this case, tm may be referred to as the rounddown time. The round-down time is another example of the round time described below.

For example, the display time range setting unit 12 may set the time obtained by devaluing tev in 1-hour units as tm (round-down time). In the example of FIG. 6, the display time range setting unit 12 may set the time “January 03, 2020 07:00:00” as tm. Then, the display time range setting unit 12 may set t1 and t2, respectively, using the above equations (1) and (2). In this case, the display time range setting unit 12 sets (i) the time "January 03, 2020 04:00:00" as t1 and (ii) the time "January 03, 2020 10:00". "00 minutes 00 seconds" is set as t2.

As described above, t1 and t2 can be set to a well-separated time by setting t1 and t2 with reference to the time tm rounded (rounded) in a predetermined time unit. tm may be collectively referred to as a round time.

(2) However, the display time range setting unit 12 does not necessarily have to set t1 and t2 with reference to tm. For example, the display time range setting unit 12 may set t1 and t2 with reference to tev. As an example, the display time range setting unit 12 has the following equations (3) and (4),
t1 = tev-T0 / 2 ... (3)
t2 = tev + T0 / 2 ... (4)
May be used to set t1 and t2, respectively.

In this case, the display time range setting unit 12 sets (i) the time "January 03, 2020 04:12:20" as t1 and (ii) the time "January 03, 2020 10:00". "12 minutes 20 seconds" is set as t2. According to the above equations (3) to (4), t1 and t2 can be set so that tev is the center time of the trend graph display time range.

(3) In the first embodiment, the case where the item list DB 21, the measured value DB 22, and the event information DB 23 are stored in the storage unit 20 of the monitoring device 1 is exemplified. However, these DBs do not necessarily have to be stored in the monitoring device 1. In the monitoring system 100, the monitoring device 1 may be communicably connected to these DBs.

As an example, at least one of the item list DB 21, the measured value DB 22, and the event information DB 23 may be stored in a server (not shown) in the network 1100. An example of a server is a cloud server.

(4) In the first embodiment, the case where the monitoring device 1 includes the input unit 30 and the display unit 31 is illustrated. However, the input unit 30 and the display unit 31 do not necessarily have to be provided in the monitoring device 1. In the monitoring system 100, the monitoring device 1 may be communicably connected to the input unit 30 and the display unit 31.

[Embodiment 2]
In the first embodiment, a case where the length of the trend graph display time range is maintained at a constant value (initial value T0) is illustrated. However, it is also considered that the suitable length of the trend graph display time range may differ depending on the target abnormality event. Therefore, in the monitoring device 1, the trend graph display time range may be set so as to be changeable. For example, the trend graph display time range may be changed (reset) according to user input after the trend graph 540 is displayed in the graph area 530.

Therefore, the display control unit 13 may display an input interface for allowing the user to specify t1 and t2 in the trend graph display screen 500b. As an example, in the trend graph display screen 500b, (i) an input list for allowing the user to specify t1 (start time input list) and (ii) an input list for allowing the user to set t2 (end point time input list). ) Is displayed in the trend graph display screen 500b.

The display time range setting unit 12 acquires the value input to the starting point time input form by the user, and updates t1 to the value. Similarly, the display time range setting unit 12 acquires the value entered in the end point time input form by the user, and updates t2 to the value. As a result, the user can arbitrarily change the length of the trend graph display time range according to the target abnormal event. t1 and t2 may be arbitrarily set as long as the relationship of t1 <tev <t2 is satisfied.

The input interface for causing the user to set t1 and t2 is not limited to the above example. As another example, the display control unit 13 has a slide bar (slide bar for specifying the start point time) for allowing the user to specify (i) t1 and a slide bar (end point time) for allowing the user to specify (ii) t2. The designated slide bar) is displayed in the trend graph display screen 500b. In this case, the user can change t1 and t2 by performing an input operation of sliding the slide bar for specifying the start point time and the slide bar for specifying the end point time. These slide bars can provide the user with a more intuitive input interface.

[Example of implementation by software]
The control block (particularly, the control unit 10) of the monitoring system 100 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or may be realized by software.

In the latter case, the monitoring system 100 includes a computer that executes instructions of a program that is software that realizes each function. The computer includes, for example, one or more processors and a computer-readable recording medium that stores the program. Then, in the computer, the processor reads the program from the recording medium and executes the program, thereby achieving the object of one aspect of the present invention. As the processor, for example, a CPU (Central Processing Unit) can be used. As the recording medium, a "non-temporary tangible medium", for example, a ROM (Read Only Memory) or the like, a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. Further, a RAM (Random Access Memory) for expanding the above program may be further provided. Further, the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. It should be noted that one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the above program is embodied by electronic transmission.

[Additional notes]
One aspect of the present invention is not limited to each of the above-described embodiments, and various modifications can be made within the scope of the claims, and the technical means disclosed in the different embodiments can be appropriately combined. Also included in the technical scope of one aspect of the present invention.

1 Monitoring device 10 Control unit 11 Abnormal event search unit 12 Display time range setting unit 13 Display control unit 20 Storage unit 21 Item list DB
22 Measured value DB (measured value database)
23 Event information DB (event information database)
30 Input unit 31 Display unit 100 Monitoring system 500 Trend graph display screen 500a Trend graph display screen (trend graph display screen before the trend is displayed)
500b Trend graph display screen (Trend graph display screen after the trend is displayed)
530 Graph area 540 Trend graph 600 Abnormal event search screen 610 Search condition input area 630 Search result display area 1000 Equipment 1001, 1001a, 1001b, 1001n Monitored equipment 1002, 1002a, 1002b, 1002n Sensor group 1100 Network tv time (target abnormal event) time of occurrence)
tm time (Roundup time)
t1 time (starting time in the trend graph display time range)
t2 time (end point time in the trend graph display time range)

Claims (5)

A monitoring device that monitors multiple monitored devices.
The above monitoring device
A measurement value database in which time-series data of each of a plurality of types of measurement values in each of the above-mentioned plurality of monitored devices are recorded, and
An event information database in which information related to events that occurred in each of the above multiple monitored devices is recorded, and
An input unit that accepts user input and
It is connected to the display unit so that it can communicate with it.
The above monitoring device
Using the search conditions entered by the user in the input unit, target abnormal event candidates, which are at least one abnormal event satisfying the search conditions, are extracted from the event information database.
The target abnormal event occurrence time, which is the occurrence time of the target abnormal event selected by the user from the target abnormal event candidates, is acquired from the event information database.
Set the trend graph display time range including the above target abnormal event occurrence time,
A monitoring device that acquires time-series data over the trend graph display time range from the measurement value database for the measured values corresponding to the target abnormality event, and displays the acquired time-series data as a trend graph on the display unit. .. The above monitoring device
Set the round-up time, which is the round-up time of the above target abnormal event occurrence time in a predetermined time unit.
The monitoring device according to claim 1, wherein the start point time and the end point time in the trend graph display time range are set so that the roundup time becomes the center time of the trend graph display time range. The above monitoring device
Set the rounddown time, which is the rounddown of the above target abnormal event occurrence time in predetermined time units.
The monitoring device according to claim 1, wherein the start point time and the end point time in the trend graph display time range are set so that the round-down time becomes the center time of the trend graph display time range. The monitoring device according to claim 1, wherein the monitoring device sets a start time and an end time in the trend graph display time range so that the target abnormality event occurrence time is the center time of the trend graph display time range. .. It is a control method that controls a monitoring device that monitors multiple monitored devices.
The above monitoring device
A measurement value database in which time-series data of each of a plurality of types of measurement values in each of the above-mentioned plurality of monitored devices are recorded, and
An event information database in which information related to events that occurred in each of the above multiple monitored devices is recorded, and
An input unit that accepts user input and
It is connected to the display unit so that it can communicate with it.
The above control method is
A process of extracting a target abnormal event candidate, which is at least one abnormal event satisfying the search condition, from the event information database using the search condition input by the user in the input unit.
The process of acquiring the target abnormal event occurrence time, which is the occurrence time of the target abnormal event selected from the target abnormal event candidates by the user, from the event information database, and
The process of setting the trend graph display time range including the above target abnormal event occurrence time, and
Regarding the measured values corresponding to the target abnormality event, a process of acquiring time-series data over the trend graph display time range from the measured value database and displaying the acquired time-series data as a trend graph on the display unit. Including, control method.

Images