JP2015153142A - Plant monitor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant monitor capable of reducing time and effort imposed on operators.SOLUTION: The plant monitor includes: a past data storage section 10 that stores past monitoring data on the basis of event and time; and a time input section 11 for inputting a search time and a piece of summary information on the summary time prescribing a time range which is obtained by summarizing the search time. The plant monitor also includes a scene determination section 12 that calculates the number of events of monitoring data which have changed at every time within the search time, and determines the time as summarizing time in the order of the number of the events. The scene determination section 12 determines the summarizing time until the total of time prescribed for each summarizing time exceeds the summary time.

Description

  The present invention relates to a plant monitoring apparatus that extracts important times having characteristics with respect to past monitoring data, for example, a summary display.

  A technique for determining (extracting) and displaying important time having characteristics with respect to past input data of monitoring equipment in a plant monitoring apparatus or a plant monitoring system, that is, a technique for performing summary display has been proposed. According to such a technique, analysis of events such as accidents and abnormal operations can be facilitated. As an example of summary display, Patent Literature 1 searches data related to an event and time designated by an operator from monitoring data such as historical trend data and log data, and uses the acquired data as an event analysis support screen. An event analysis support method to be presented collectively is disclosed.

JP 2009-301249 A

  According to the technique of Patent Document 1, it is possible to display a summary regarding a specific event designated by the operator. However, when there are events such as alarms and operation histories when trying to check the status of past monitoring devices in a short time, such as when shifting shifts, specify each event and the time when the event occurred Thus, there is a problem that it takes a lot of time to search the monitoring screen. On the other hand, even if there is no event such as an alarm or operation history, if you do not know that there is no event, you must display the monitoring screen one by one and monitor the whole, and check in a short time I couldn't.

  Then, this invention is made | formed in view of the above problems, and it aims at providing the technique which can suppress an operator's effort.

  A plant monitoring apparatus according to the present invention summarizes a past data storage unit that stores past monitoring data for each event and each time, a search time that defines a time range in which a search target is to be searched, and the search time. And a first input unit for inputting summary information regarding summary time that defines a time range to be obtained. And the said plant monitoring apparatus calculates the number of the said events of the said monitoring data which changed for every said time in the said search time, and determines the said time as summary time according to the order of the number of the said events Is provided. The determination unit determines the summarization time until the sum of the prescribed times defined for each summarization time exceeds the summarization time.

  According to the present invention, even if the operator does not designate an event such as an alarm or a driving operation, the summarization time according to the change state of the monitoring data is determined until the sum of the specified times exceeds the summarization time. Thereby, an operator can suppress the effort required for grasping important time in the past plant state.

It is a block diagram which shows the structure of the plant monitoring apparatus which concerns on Embodiment 1. FIG. 2 is a block diagram illustrating a hardware configuration of the plant monitoring apparatus according to Embodiment 1. FIG. It is a figure which shows an example of the information memorize | stored in the past data storage part. It is a figure which shows an example of the information input into a time input part. 4 is a flowchart showing an operation of a scene determination unit according to the first embodiment. 4 is a flowchart showing monitoring data search processing of a scene determination unit according to the first embodiment. It is a figure which shows an example of variation | change_quantity data list. 6 is a flowchart showing a summary time creation process of the scene determination unit according to the first embodiment. It is a figure which shows an example of a summary time list. It is a block diagram which shows the structure of the plant monitoring apparatus which concerns on Embodiment 2. FIG. It is a figure which shows an example of the monitoring tag list. 10 is a flowchart illustrating monitoring data search processing of a scene determination unit according to Embodiment 2. It is a block diagram which shows the structure of the plant monitoring apparatus which concerns on Embodiment 3. FIG. It is a figure which shows the example of a display of the summary time list by the summary time list display part. It is a block diagram which shows the structure of the plant monitoring apparatus which concerns on Embodiment 4. It is a figure which shows an example of the display information memorize | stored in the monitoring screen memory | storage part. 10 is a flowchart showing the operation of the scene control unit according to the fourth embodiment. 10 is a flowchart showing a scene control process of a scene control unit according to the fourth embodiment. 10 is a flowchart illustrating an operation of a monitoring screen drawing unit according to the fourth embodiment. It is a block diagram which shows the structure of the plant monitoring apparatus which concerns on Embodiment 5. FIG. 10 is a flowchart showing an operation of a monitoring tag extraction unit according to the fifth embodiment. It is a figure which shows an example of the monitoring tag list according to screen. 18 is a flowchart showing an operation of a summary monitoring screen determination unit according to the fifth embodiment. 10 is a flowchart showing summary monitoring screen determination processing of a summary monitoring screen determination unit according to Embodiment 5. 10 is a flowchart showing monitoring tag change amount calculation processing of a summary monitoring screen determination unit according to Embodiment 5. It is a figure which shows an example of the monitoring screen list. 10 is a flowchart showing an operation of a scene control unit according to the fifth embodiment.

<Embodiment 1>
FIG. 1 is a block diagram showing a configuration of a plant monitoring apparatus according to Embodiment 1 of the present invention. The plant monitoring apparatus shown in FIG. 1 includes a past data storage unit 10, a time input unit (first input unit) 11, and a scene determination unit (determination unit) 12.

  FIG. 2 is a block diagram showing a hardware configuration applicable to the plant monitoring apparatus according to the first embodiment. In the example of FIG. 2, a PC (personal computer) 21 is shown as the hardware configuration. The PC 21 includes a storage device 22 that can store information such as a program, and a CPU (Central Processing Unit) 23 that performs calculations based on the information stored in the storage device 22.

  The functions of the past data storage unit 10 in FIG. 1 are realized by the storage device 22 in FIG. 2, and the functions of the time input unit 11 and the scene determination unit 12 in FIG. 1 are realized by the CPU 23 executing a program. The time input unit 11 may be realized by an input device such as a keyboard, a mouse, and a touch panel.

  Next, each component of the plant monitoring apparatus shown in FIG. 1 will be described in detail.

  The past data storage unit 10 stores (saves) past monitoring data for each event and each time. The event includes, for example, an alarm and an operation history.

  FIG. 3 is a diagram illustrating an example of information stored (stored) in the past data storage unit 10. As illustrated in FIG. 3, the past data storage unit 10 stores the input value of the monitoring data, and “time” and “monitoring data value” are associated with the “monitoring data name” corresponding to the event. Stored in binary format. However, these may be stored not in binary format but in text format or RDB (Relational Database). In addition to the immediate value such as the current value, a state value such as missing measurement may be applied to the monitoring data value.

  Returning to FIG. 1, the time input unit 11 receives the search time and summary information related to the summary time. By this input, the search time and the summary time in the plant monitoring apparatus are designated.

  Here, the search time defines a time range in which a search target is to be searched.

  On the other hand, the summary time defines a time range to be obtained by summarizing the search time. That is, the summary time indicates an allowable time that can be the total time of the monitoring data to be determined (extracted) (summary specified time described later). This summarization time limits the number of monitoring data to be determined (extracted).

  The summary information input to the time input unit 11 may be, for example, the summary time itself, or may be a summary rate indicating the percentage or ratio (for example, 15% or 10%) of the summary time with respect to the search time. Good.

  FIG. 4 shows an example of search time input to the time input unit 11 and summary information. In the example of FIG. 4, the search start time and the search end time are input as the search time, and the summary time is input as the summary information. In the example of FIG. 4, when a summarization rate of “1%” is input instead of the summarization time, the summarization time is about 14 minutes (= 24 hours (search time) × 1%).

  Returning to FIG. 1, the scene determination unit 12 calculates the number of events in the monitoring data that have changed for each time within the search time. Then, the scene determination unit 12 determines the time as the summary time according to the order of the calculated number of events. The scene determination unit 12 determines the summarization time until the sum of the prescribed times defined for each summarization time (hereinafter sometimes referred to as “summary prescribed time”) exceeds the summarization time.

  FIG. 5 is a flowchart showing the operation of the scene determination unit 12. Hereinafter, the operation of the scene determination unit 12 will be described in detail with reference to FIG.

  First, in step S <b> 1, the scene determination unit 12 reads the search time (search start time and search end time) and summary information (summary time) input to the time input unit 11. Then, the scene determination unit 12 sets the read search start time, search end time, and summary time to the start time ST, end time ET, and summary time YT.

  In step S2, the scene determination unit 12 sets the start time ST to the search time T.

  In step S3, the scene determination unit 12 executes a monitoring data search process to be described later.

  In step S4, the scene determination unit 12 adds a predetermined time (here, 1 [second]) to the search time T.

  In step S5, the scene determination unit 12 determines whether or not the search time T exceeds the end time ET. If not, the process returns to step S3, and if it exceeds, the process proceeds to step S6.

  In step S6, the scene determination unit 12 executes a summary time creation process to be described later.

  FIG. 6 is a flowchart showing the operation of the scene determination unit 12 in the monitoring data search process (step S3).

  First, in step S <b> 11, the scene determination unit 12 sets a later-described change amount with respect to the search time T to “0”.

  In step S12, the scene determination unit 12 determines whether or not there is event monitoring data that has not been acquired in the next step S13 among the plurality of event monitoring data related to the search time T. If it is determined that there is no monitoring data, the process shown in FIG. 6 is terminated. If it is determined that there is monitoring data, the process proceeds to step S13.

  In step S13, the scene determination unit 12 acquires monitoring data SV of one event that has not been acquired from the monitoring data of a plurality of events.

  In step S14, the scene determination unit 12 determines whether or not the value of the monitoring data SV has changed. If it has not changed, the process returns to step S12. If it has changed, the process proceeds to step S15.

  In step S15, the scene determination unit 12 adds “1” to the change amount with respect to the search time T in the change amount data list. In addition, the scene determination unit 12 adds the content of the event (monitoring data name) to the “changed monitoring data” column for the search time T in the change amount data list. Then, it returns to step S12.

  With the monitoring data search process of FIG. 6 described above, the number of monitoring data events that have changed at the search time T within the search time is calculated as the amount of change. FIG. 7 is a diagram showing an example of the change amount data list obtained by repeating the monitoring data search process of FIG. 6 from the start time ST to the end time ET.

  The change amount data list shown in FIG. 7 is information expressed in a table format, and includes “time”, “change amount”, and “changed monitoring data”. “Change amount” indicates the change amount (number of events of the monitoring data changed at “time”) calculated in the monitoring data search process of FIG. “Changed monitoring data” indicates the event contents (breakdown) of the monitoring data changed at “time”. This change amount data list is input to a summary time creation process (step S6) described below.

  FIG. 8 is a flowchart showing the operation of the scene determination unit 12 in the summary time creation process (step S6 in FIG. 5).

  First, in step S21, the scene determination unit 12 sets the summary total time SUM to “0”.

  In step S22, the scene determination unit 12 determines whether the summary total time SUM exceeds the summary time YT. If it is determined that it has exceeded, the processing shown in FIG. 8 is terminated. If it is determined that it has not exceeded, the process proceeds to step S23.

  In step S23, the scene determination unit 12 sets the time at which the amount of change (number of events) is maximum among the times of the change amount data list from the start time ST to the end time ET obtained by the monitoring data search process. And the summary time MT is determined. That is, the scene determination unit 12 determines the time as the summary time MT according to the order of the number of events.

  In step S24, the scene determination unit 12 adds the determined summary time MT and the specified time (summary specified time) specified for the summary time MT to the summary time list described later. The summary specified time according to the first embodiment is a time (MT-t) that is advanced by a predetermined time t [seconds] from the summary time MT and a predetermined time t [seconds] from the summary time MT. This is the time between the delayed time (MT + t). In step S24, the scene determination unit 12 adds the length of the summary specified time (2 × t + 1) to the summary total time SUM.

  For example, if t = 5 [seconds], in step S24, the scene determination unit 12 uses the time from (MT-5) [seconds] to (MT + 5) [seconds] as a summary specified time as a summary time list. And the length of time (11 [seconds]) is added to the summary total time SUM. The predetermined time t may be a time other than 5 [seconds], or may be changed according to the summarization rate (summary time).

  In step S25, the scene determination unit 12 deletes the time included in the summary specified time from the change amount data list. Thereafter, the process returns to step S22. In step S23 after step S22, the scene determination unit 12 determines the time when the amount of change (number of events) is the next largest after the summary time MT determined in the latest step S23 as the summary time MT. For this reason, by repeating step S23, the time is determined as the summary time MT in descending order of the amount of change (number of events). Although not shown in FIG. 8, when all the times are deleted from the change amount data list in step S25, the processing shown in FIG. 8 may be terminated.

  By the above summary time creation processing of FIG. 8, the time when the change amount (number of events) is maximum in the change amount data list is determined (extracted) until the sum total time exceeds the summary time. Go. FIG. 9 is a diagram illustrating an example of a summary time list obtained by executing the summary time creation process of FIG. 8 and output from the scene determination unit 12.

  The summary time list shown in FIG. 9 is information expressed in a table format, and includes “summary time” and “summary specified time”. Here, for example, when the above-described operation is performed when the summary time MT is “00:00:00”, the summary specified time is “23:59:05 to 00:00:05”. When ST is “00:00:00”, the summary specified time may be “00:00:00 to 00:00:10”. That is, when the start time ST is included in the summary specified time, the start time ST may be applied to the first time of the summary specified time. Similarly, when the end time ET is included in the summary specified time, the end time ET may be applied to the last time of the summary specified time.

  According to the plant monitoring apparatus according to the first embodiment as described above, even if the operator does not specify an event such as an alarm or a driving operation, the summarization time corresponding to the change state of the monitoring data is displayed as the summarization specified time. Until the total exceeds the summary time. Thereby, an operator can suppress the effort required for grasping important time in the past plant state.

<Embodiment 2>
In the first embodiment described above, the scene determination unit 12 determines the summary time using the monitoring data of all events. In contrast, the plant monitoring apparatus according to the second embodiment of the present invention is configured to determine the summary time using the monitoring data of the specified event.

  FIG. 10 is a block diagram showing the configuration of the plant monitoring apparatus according to the second embodiment. Of the components of the plant monitoring apparatus shown in FIG. 10, the components other than the monitoring tag input unit 30 and the scene determination unit 31 are the same as those in the first embodiment. Therefore, in the description of the plant monitoring apparatus according to the second embodiment, the same or similar components as those described above are denoted by the same reference numerals, and hereinafter the monitoring tag input unit 30 and the scene determination unit 31. Mainly explained.

  An event is input to the monitoring tag input unit (second input unit) 30. In the second embodiment, the event described in the first embodiment and the event input to the monitoring tag input unit 30 are both monitoring tags that can identify the monitoring data (input signal) of the monitoring device. It will be described as including.

  FIG. 11 is a diagram illustrating an example of a monitoring tag list obtained by inputting a monitoring tag in the monitoring tag input unit 30. As shown in FIG. 11, the monitoring tag list is information including the name of the monitoring tag. In addition, this monitoring tag list is produced | generated based on the monitoring tag input into the monitoring tag input part 30, for example.

  Returning to FIG. 10, the scene determination unit 31 calculates the number of events in the monitoring data that have changed, and determines the summary time, as with the scene determination unit 12 described in the first embodiment. However, the scene determination unit 31 according to the second embodiment determines the summary time using the monitoring data of the monitoring tag (event) input to the monitoring tag input unit 30.

  FIG. 12 is a flowchart showing the operation of the scene determination unit 31 in the monitoring data search process.

  The operations other than the monitoring data search process of the scene determination unit 31 are the same as the operations of the scene determination unit 12 according to the first embodiment, and steps S31, S32, The operations of S33, S35, and S36 are the same as the operations of steps S11, S12, S13, S14, and S15 of FIG.

  After step S33, in step S34, the scene determination unit 31 determines whether the monitoring tag of the monitoring data SV acquired in step S33 is in the monitoring tag list. If it is determined that there is no monitoring tag, the process returns to step S32. If it is determined that there is a monitoring tag, the process proceeds to step S35.

  According to the plant monitoring apparatus according to the second embodiment as described above, it is possible not only to obtain the same effect as the first embodiment, but also to the monitoring data of the monitoring tag (event) that the operator pays attention to. The summary time can be determined.

<Embodiment 3>
The plant monitoring apparatus according to Embodiment 3 of the present invention is configured to display the above summary time list (FIG. 9).

  FIG. 13 is a block diagram showing the configuration of the plant monitoring apparatus according to the third embodiment. Of the components of the plant monitoring apparatus shown in FIG. 13, the components other than the summary time list display unit 40 are the same as those in the first embodiment. Therefore, in the description of the plant monitoring apparatus according to the third embodiment, the same or similar components as those described above are denoted by the same reference numerals, and the summary time list display unit 40 will be mainly described below. .

  The summary time list display unit 40 displays the “summary time”, “summary specified time”, “change amount”, and the top N “changed monitoring data” having the largest change amount (number of events) in the change amount. Display them in order of size.

  FIG. 14 is a diagram illustrating an example of a summary time list displayed (output) by the summary time list display unit 40. The summary time list is information expressed in a tabular format, in which “summary time”, “prescribed summary time”, “change amount”, and the top two “changed monitoring data” with the largest change amount are arranged. Yes. The summary times are arranged from the upper side to the lower side in order of increasing change amount. Note that the summary time list display unit 40 may also display the number and ratio of changes.

  According to the plant monitoring apparatus according to the third embodiment as described above, not only can the same effect as in the first embodiment be obtained, but the operator can determine which summary time is important in the summary time. It is possible to grasp and which monitoring data is dominant with respect to the summary time.

<Embodiment 4>
The plant monitoring apparatus according to Embodiment 4 of the present invention is configured to display a monitoring screen based on the above summary time list (FIG. 9).

  FIG. 15 is a block diagram showing the configuration of the plant monitoring apparatus according to the fourth embodiment. Of the components of the plant monitoring apparatus shown in FIG. 15, the components other than the monitoring screen storage unit 50, the scene control unit (control unit) 51, and the monitoring screen drawing unit 52 are the same as those in the first embodiment. Therefore, in the description of the plant monitoring apparatus according to the fourth embodiment, the same reference numerals are given to the same or similar components as described above, and hereinafter, the monitoring screen storage unit 50, the scene control unit 51, The monitoring screen drawing unit 52 will be mainly described.

  The monitoring screen storage unit 50 stores (stores) monitoring screen display information.

  FIG. 16 is a diagram illustrating an example of display information stored in the monitoring screen storage unit 50. In the monitoring screen storage unit 50, information of symbols constituting the monitoring screen is stored as display information in a text format. However, these may be stored not in text format but in other formats such as binary format.

  In the example of FIG. 16, information on two symbols (a rectangular symbol and a round symbol) is stored. The symbol information includes a type indicating the shape of the symbol, a position, a size, a display color indicating a color for displaying the symbol, a monitoring tag associated with the symbol, and the like. As will be described later, when a monitoring tag is associated with a symbol, a monitoring data value corresponding to the monitoring tag is displayed on the monitoring screen by the monitoring screen drawing unit 52.

  As described above, in the fourth embodiment, the display information includes the monitoring tag. In the fourth embodiment, the event described in the first embodiment also includes a monitoring tag.

  Returning to FIG. 15, the monitoring screen drawing unit 52 draws the monitoring screen based on the display information stored in the monitoring screen storage unit 50 and the monitoring data. Here, the monitoring screen drawing unit 52 draws the monitoring screen based on the display information stored in the monitoring screen storage unit 50 and the monitoring data transmitted from the scene control unit 51.

  When the summary time is determined by the scene determination unit 12, the scene control unit 51 transmits monitoring data corresponding to the specified summary time specified at the summary time to the monitoring screen drawing unit 52. The monitoring screen based on the monitoring data transmitted from the scene control unit 51 is successively drawn by the monitoring screen drawing unit 52, whereby the monitoring screen is reproduced. That is, when the scene determination unit 12 determines the summary time, the scene control unit 51 reproduces the monitoring screen based on the monitoring data of the summary time by drawing of the monitoring screen drawing unit 52.

  FIG. 17 is a flowchart showing the operation of the scene control unit 51. Hereinafter, the operation of the scene control unit 51 will be described in detail with reference to FIG.

  First, in step S41, the scene control unit 51 reads the summary time list generated by the scene determination unit 12.

  In step S42, the scene control unit 51 determines whether there is a summary specified time in the read summary time list, that is, whether there is a summary time. If it is determined that there is no summary specified time, the operation shown in FIG. 17 is terminated, and if it is determined that there is a summary specified time, the process proceeds to step S43.

  In step S43, the scene control unit 51 acquires the summary specified time from the read summary time list. Note that the scene control unit 51 may acquire the summary prescribed times in the order in which the above-described change amount (number of events) decreases.

  In step S44, the scene control unit 51 executes a scene control process described later. Thereafter, the process returns to step S42.

  FIG. 18 is a flowchart showing the operation of the scene control unit 51 in the scene control process (step S44).

  First, in step S51, the scene control unit 51 sets the first time of the summary specified time acquired in step S43 as the reproduction time T.

  In step S <b> 52, the scene control unit 51 acquires a monitoring data value corresponding to the reproduction time T from the past data storage unit 10.

  In step S53, the scene control unit 51 transmits (notifies) the monitoring data value acquired in step S52 and the monitoring tag to the monitoring screen drawing unit 52.

  In step S54, the scene control unit 51 adds a predetermined time (here, 1 [second]) to the reproduction time T.

  In step S55, the scene control unit 51 determines whether or not the reproduction time T has exceeded the last time of the summary specified time acquired in step S43. If not exceeded, the process returns to step S52, and if exceeded, the process shown in FIG. 18 is terminated.

  FIG. 19 is a flowchart showing the operation of the monitoring screen drawing unit 52. Hereinafter, the operation of the monitoring screen drawing unit 52 will be described in detail with reference to FIG.

  First, in step S <b> 61, the monitoring screen drawing unit 52 reads display information from the monitoring screen storage unit 50.

  In step S62, the monitoring screen drawing unit 52 determines whether there is a symbol that has not been acquired in the next step S62 among the symbols included in the read display information. If it is determined that there is no such symbol, the process shown in FIG. 19 is terminated. If it is determined that there is such a symbol, the process proceeds to step S63.

  In step S63, the monitoring screen drawing unit 52 acquires one symbol that has not been acquired.

  In step S64, the monitoring screen drawing unit 52 determines whether or not a monitoring tag is associated with the acquired symbol (whether or not it is allocated). If it is determined that the monitoring tag is associated (assigned), the process proceeds to step S65. If it is determined that the monitoring tag is not associated (not assigned), the process proceeds to step S66.

  In step S65, the monitoring screen drawing unit 52 acquires the value of the monitoring data corresponding to the monitoring tag associated with the acquired symbol among the monitoring data transmitted by the scene control unit 51 in step S53. Thereafter, the process proceeds to step S66.

  When the process directly proceeds from step S64 to step S66 (when no monitoring tag is associated), the monitoring screen drawing unit 52 converts the display information to symbol information (symbol type, position, size) in step S66. Based on this, the symbol is drawn in the monitoring screen. With this drawing, the monitoring screen is drawn. Then, the process shown in FIG. 19 is complete | finished.

  On the other hand, when the process proceeds from step S65 to step S66 (when a monitoring tag is associated), in step S66, the monitoring screen drawing unit 52 displays symbol information (symbol type, position, size) of display information. And the symbol is drawn in the monitoring screen based on the monitoring data value acquired in step S65. With this drawing, the monitoring screen is drawn. Then, the process shown in FIG. 19 is complete | finished.

  According to the plant monitoring apparatus according to the fourth embodiment as described above, not only can the same effect as in the first embodiment be obtained, but the operator can monitor the status of the summary time (monitoring data value). It can be confirmed above.

<Embodiment 5>
In the above-described fourth embodiment, the monitor screen to be drawn (reproduced) is not automatically determined. On the other hand, the plant monitoring apparatus according to the fifth embodiment of the present invention is configured to automatically determine a monitoring screen to be presented for the summary time and draw (reproduce) the monitoring screen. Yes.

  FIG. 20 is a block diagram showing the configuration of the plant monitoring apparatus according to the fifth embodiment. Of the components of the plant monitoring apparatus shown in FIG. 20, the components other than the monitoring tag extraction unit 60, summary monitoring screen determination unit (monitoring screen determination unit) 61, and scene control unit 62 are the same as those in the fourth embodiment. It is. Therefore, in the description of the plant monitoring apparatus according to the fifth embodiment, components that are the same as or similar to the components described above are denoted by the same reference numerals, and hereinafter, a monitoring tag extraction unit 60, a summary monitoring screen determination unit 61 and the scene control unit 62 will be mainly described.

  First, an overview of the monitoring tag extraction unit 60, the summary monitoring screen determination unit 61, and the scene control unit 62 will be described.

  The monitoring tag extraction unit 60 extracts a monitoring tag from the display information stored in the monitoring screen storage unit 50 for each monitoring screen.

  The summary monitoring screen determination unit 61, when the summary time is determined by the scene determination unit 12, indicates the number of monitoring data changed within the specified time (summary specified time) specified at the summary time. The monitoring tag for each monitoring screen extracted by the extraction unit 60 is calculated. Then, the summary monitoring screen determination unit 61 determines a monitoring screen based on the number of monitoring data for each monitoring screen obtained by the calculation.

  Similarly to the scene control unit 51 described in the fourth embodiment, the scene control unit 62 draws the summary time by drawing the monitoring screen drawing unit 52 when the scene decision unit 12 determines the summary time. Replay the monitoring screen based on the monitoring data. However, the scene control unit 62 according to the fifth embodiment reproduces the monitoring screen determined by the summary monitoring screen determination unit 61.

  FIG. 21 is a flowchart showing the operation of the monitoring tag extraction unit 60. Hereinafter, the operation of the monitoring tag extraction unit 60 will be described in detail with reference to FIG.

  First, in step S <b> 71, the monitoring tag extraction unit 60 reads display information from the monitoring screen storage unit 50.

  In step S72, the monitoring tag extraction unit 60 determines whether there is a symbol that has not been acquired in the next step S73 among symbols included in the read display information. If it is determined that there is no such symbol, the process shown in FIG. 21 is terminated. If it is determined that there is such a symbol, the process proceeds to step S73.

  In step S73, the monitoring tag extraction unit 60 acquires one symbol that has not been acquired.

  In step S74, the monitoring tag extraction unit 60 determines whether or not a monitoring tag is associated with the acquired symbol (whether or not it is allocated). If it is determined that the monitoring tag is not associated (not allocated), the process returns to step S72. If it is determined that the monitoring tag is associated (allocated), the process proceeds to step S75.

  In step S75, the monitoring tag extraction unit 60 adds the monitoring tag associated with the acquired symbol to a list of monitoring tags for each screen described later. Thereafter, the process returns to step S72.

  FIG. 22 is a diagram illustrating an example of a screen-by-screen monitoring tag list obtained by the operation of the monitoring tag extraction unit 60 of FIG. The list of monitor tags for each screen shown in FIG. 22 is information expressed in a table format, “monitor screen name” indicating the name of the monitor screen, and “monitor tag” indicating the monitor tag extracted by the monitor tag extracting unit 60. Is included. One monitoring tag may be extracted for one monitoring screen, or a plurality of monitoring tags may be extracted.

  FIG. 23 is a flowchart showing the operation of the summary monitoring screen determination unit 61. Hereinafter, the operation of the summary monitoring screen determination unit 61 will be described in detail with reference to FIG.

  First, in step S81, the summary monitoring screen determination unit 61 reads the summary time list generated by the scene determination unit 12.

  In step S82, the summary monitoring screen determination unit 61 determines whether or not there is a summary specified time in the read summary time list, that is, whether or not there is a summary time. If it is determined that there is no specified summary time, the operation shown in FIG. 23 is terminated, and if it is determined that there is a specified summary time, the process proceeds to step S83.

  In step S83, the summary monitoring screen determination unit 61 acquires the specified summary time from the read summary time list. Note that the summary monitoring screen determination unit 61 may acquire the specified summary time in the order in which the above-described change amount (number of events) decreases.

  In step S84, the summary monitoring screen determination unit 61 executes a summary monitoring screen determination process to be described later. Thereafter, the process returns to step S82.

  FIG. 24 is a flowchart showing the operation of the summary monitoring screen determination unit 61 in the summary monitoring screen determination process (step S84).

  First, in step S91, the summary monitoring screen determination unit 61 reads the list of monitoring tags for each screen generated by the monitoring tag extraction unit 60.

  In step S92, the summary monitoring screen determination unit 61 determines whether there is a monitoring screen name that has not been acquired in the next step S93 in the list of screen-based monitoring tags read. If it is determined that there is a monitoring screen name, the process proceeds to step S93. If it is determined that there is no monitoring screen name, the process proceeds to step S95.

  In step S93, the summary monitoring screen determination unit 61 sets the monitoring screen name “NAME”, the monitoring screen name not acquired from the monitoring screen names in the monitoring tag list for each screen, and the corresponding monitoring tag, and Each is acquired (removed) as a monitoring tag “TAGS”.

  In step S94, the summary monitoring screen determination unit 61 executes monitoring tag change amount calculation processing. Although details will be described later, in the monitoring tag change amount calculation processing, the number of monitoring data changed among the monitoring data of the monitoring tag extracted by the monitoring tag extraction unit 60 for the monitoring screen name “NAME” acquired in step S93. Is calculated. Thereafter, the process returns to step S92.

  When the process proceeds from step S92 to step S95, in step S95, the summary monitoring screen determination unit 61 determines the monitoring screen (monitoring screen) based on the number of monitoring data for each monitoring screen calculated by the monitoring tag change amount calculation process. Name “NAME”). Here, it is assumed that the summary monitoring screen determination unit 61 determines the monitoring screen name “MAX_NAME” that maximizes the number of monitoring data from all the monitoring screens.

  In step S96, the summary monitoring screen determination unit 61 adds the monitoring screen name “MAX_NAME” determined in step S95 to the monitoring screen list described later. Then, the process shown in FIG. 24 is complete | finished.

  FIG. 25 is a flowchart showing the operation of the summary monitoring screen determination unit 61 in the monitoring tag change amount calculation process (step S94).

  First, in step S101, the summary monitoring screen determination unit 61 sets the number of screen-by-screen data changes for the monitoring screen name “NAME” extracted in step S93 to “0”.

  In step S102, the summary monitoring screen determination unit 61 determines whether there is one monitoring tag that has not been acquired in next step S103 among the monitoring tags “TAGS”. When it is determined that there is no such monitoring tag, the process illustrated in FIG. 25 is terminated, and when it is determined that there is the monitoring tag, the process proceeds to step S103.

  In step S <b> 103, the summary monitoring screen determination unit 61 acquires one monitoring tag “TAG” that has not been acquired from among the monitoring tags “TAGS”.

  In step S <b> 104, the summary monitoring screen determination unit 61 calculates the number of monitoring data changed during the summary specified time acquired in step S <b> 83 among the monitoring data of one monitoring tag “TAG”.

  In step S105, the summary monitoring screen determination unit 61 adds the number of monitoring data calculated in step S104 to the number of screen-by-screen data changes. Thereafter, the process returns to step S102.

  With the above-described monitoring tag change amount calculation processing of FIG. 25, the number of events of the monitoring data that has changed during the summary specified time among the monitoring data related to all the monitoring tags “TAGS” in the monitoring screen name “NAME” is obtained. Calculated as the number of data changes per screen. Then, the monitoring screen name “MAX_NAME” is determined in step S95 in FIG. 24, and a monitoring screen list is generated in step S96 in FIG.

  FIG. 26 is a diagram illustrating an example of a list of monitoring screens generated by the summary monitoring screen determination unit 61 performing the operations of FIGS. 23 to 25. The monitoring screen list includes the summary specified time and the monitoring screen name “MAX_NAME” arranged adjacent to and adjacent thereto.

  FIG. 27 is a flowchart showing the operation of the scene control unit 62. Hereinafter, the operation of the scene control unit 62 will be described with reference to FIG.

  The operations of steps S111, S112, S113, and S115 of the scene control unit 62 are the same as the operations of steps S41, S42, S43, and S44 of FIG.

  After step S113, in step S114, the scene control unit 62 includes the monitoring screen used for the scene control processing in step S115 in the monitoring screens determined by the summary monitoring screen determination unit 61 (the list of monitoring screens in FIG. 26). Monitor screen). Thereafter, the scene control process is executed in step S115 for the set monitoring screen. Thereby, the monitoring screen determined by the summary monitoring screen determination unit 61 is reproduced.

  According to the plant monitoring apparatus according to the fifth embodiment as described above, not only can the same effect as the fourth embodiment be obtained, but also the monitoring data changes at each summary specified time (each summary time). The screen can be determined. Thus, the operator can monitor an appropriate monitoring screen without performing an operation for switching the monitoring screen.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  10 past data storage unit, 11 time input unit, 12, 31 scene determination unit, 30 monitoring tag input unit, 50 monitoring screen storage unit, 51, 62 scene control unit, 52 monitoring screen drawing unit, 60 monitoring tag extraction unit, 61 Summary monitoring screen decision unit.

Claims (4)

A past data storage unit that stores past monitoring data for each event and each time; and
A first input unit for inputting a search time that defines a time range in which a search target is to be searched; and summary information on summary time that defines a time range to be obtained by summarizing the search time;
A determination unit that calculates the number of events of the monitoring data that have changed for each time within the search time, and determines the time as a summary time according to the order of the number of events;
The determination unit
A plant monitoring apparatus that determines the summary time until a total of prescribed times defined for each summary time exceeds the summary time. The plant monitoring device according to claim 1,
A second input unit for inputting an event;
The determination unit
The plant monitoring apparatus which determines the said summary time using the said monitoring data of the said event input into the said 2nd input part. The plant monitoring device according to claim 1,
A monitoring screen storage unit storing display information;
A monitoring screen drawing unit for drawing the monitoring screen based on the display information and the monitoring data;
A plant monitoring unit further comprising: a control unit that reproduces the monitoring screen based on the monitoring data at the summary time by drawing of the monitoring screen drawing unit when the summarizing time is determined by the determining unit. apparatus. The plant monitoring device according to claim 3,
Each of the event and the display information includes a monitoring tag capable of identifying the monitoring data,
A monitoring tag extraction unit that extracts the monitoring tag from the display information for each monitoring screen;
When the summary time is determined by the determination unit, the number of the monitoring data changed within the specified time specified at the summary time is calculated for each monitoring screen extracted by the monitoring tag extraction unit. A monitoring screen determination unit that calculates the monitoring tag and determines the monitoring screen based on the number of the monitoring data,
The controller is
A plant monitoring apparatus that reproduces the monitoring screen determined by the monitoring screen determination unit.

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