JP3311542B2 - Trend graph display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trend graph display device for displaying an operation state of plant equipment.

[0002]

2. Description of the Related Art FIG. 7 is a block diagram showing a conventional trend graph display device. In the drawing, reference numeral 1 denotes a storage device which stores measured values according to the operation state of plant equipment as a plurality of trend data groups in a storage medium; A trend graph display device for displaying a trend graph based on the stored trend data group;
The displays (screens) 3 and 4 are a keyboard and a mouse for receiving an input from the creator of the trend graph.

5 is a trend graph display window,
Reference numeral 7 denotes a trend graph attribute display area and a trend graph display area. Reference numeral 8 denotes a group of data of a plurality of trend graphs displayed in the trend graph display area 7 at one time.
This is a group name display area for displaying the trend data groups organized into groups. Reference numeral 9 denotes a scroll bar for scrolling the screen when the trend graph cannot be displayed in the trend graph display area 7.

FIG. 8 is an explanatory view showing an example of the trend graph attribute display area. In the trend graph attribute display area 6, a trend data group shown in the group name display area 8 is selected by a trend graph creator. The attribute information about each trend graph in the displayed trend data group is displayed. FIG. 9 is an explanatory diagram showing an example of the trend graph display area. In the trend graph display area 7, as in the case of the trend graph attribute display area 6, the trend data group selected by the trend graph creator is displayed. Displays the trend graph to which it belongs.

Next, the operation will be described. FIG. 10 is a flowchart showing the operation of the trend graph display device. The operation will be described with reference to FIG. The measured values according to the operation state of the plant equipment are stored as a plurality of trend data groups in a storage medium (not shown) provided in the trend graph display device 1, and as shown in FIG. The name display area 8 displays the group names of these trend data groups. Therefore, first, the trend graph creator sets the group name display area 8
, A trend data group to be displayed is selected (step ST1). Next, for the selected trend data group, a display start / end time, which is a past measurement period to be displayed, is designated from the keyboard 3 or the mouse 4 (step ST2).

When the display start / end times are set, the attribute of each trend graph belonging to the selected trend data group is displayed in the trend graph attribute display area 6 as shown in FIG. For the specified trend data group, a trend graph is displayed for the specified display start / end time (step ST).
3). As described above, when the trend graph and its attributes are displayed, the creator of the trend graph operates the scroll bar 9 as needed to scroll the trend graph, and performs the work of checking the trend graph and analyzing the data. Furthermore, the same trend data group display start /
When the end time is to be changed or a trend graph of another trend data group is to be displayed, the process is not ended (step ST4), the process returns to step ST1, and the selection and setting from step ST1 to step ST3 are repeated. In addition, as a related technical document of the above-mentioned prior art, "Mitsubishi general instrumentation control system, MACTUS770, DC-7
870-A control-8908 (ROD), issued by Mitsubishi Electric Corporation in August 1989.

[0007]

Since the conventional trend graph display device is configured as described above, only one trend data group and one display start / end time to be displayed can be selected. Therefore, for example, when there are a plurality of trend data to be displayed and they belong to different trend data groups, it becomes impossible to simultaneously display the plurality of trend data to be displayed on the screen. A definition is needed. Further, there is a problem that the same trend data cannot be displayed at different display start / end times and the same trend data cannot be compared at different times.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to handle two trend data groups at one time, and to more effectively support a trend graph analysis operation. It is an object of the present invention to obtain a trend graph display device capable of performing the above.

[0009]

Means for Solving the Problems] trend graph display device according to the invention this is simultaneously the two trend data sequence
Display as a trend graph on one screen,
Corresponds to each trend graph based on the trend data series
Two scrollbars and those two scrollbars
-Independent or interlocked, two trends
Scroll the trend graph of the data series independently
Scroll to switch between scrolling and scrolling
And a lever changeover switch .

[0010]

[Action] trend graph display device according to the invention of this is,
1 trend graph based on two trend data sequence
Displayed simultaneously on the screen, and the trend graph creator
By setting the lever switch independently, each scroll
Each trend data corresponding to them is
Scrolls by data series. Also, scroll bar off
If the switching switch is set to interlock, either
By operating the toolbar, both trend data series
It scrolls in conjunction.

[0011]

[Embodiment 1] An embodiment of the present invention will be described below with reference to the drawings. FIG.
In a storage medium 10 for storing a trend data series, a hard disk (HD) storing a trend data series based on measured values in the short term from the present time or a trend data series based on measured values in the long term is stored. This is a storage medium selection box for selecting one of the stored magneto-optical disks (MO). FIG. 2 shows an example of a trend graph displayed in the trend graph display area 7 in FIG. 1. A trend data series is displayed by a trend graph creator in a display group A (bold line),
Two display groups B (thin lines) are selected, and a trend graph based on the selected two trend data series is simultaneously displayed on one screen.

In FIG. 1, reference numerals 11 and 12 denote two scroll bars for scrolling corresponding to each of the display groups A and B shown in FIG. 2, and reference numeral 13 denotes moving these two scroll bars 11 and 12 independently. A scroll bar switch that sets whether to move the mouse
By clicking on, the display on the switch of separation and interlocking is switched, and in response to the display, the trend graph creator can move these two scroll bars 11 and 12 individually or cooperatively. . Note that other configurations are the same as those in FIG.

Next, the operation will be described. Figure 3 is a flowchart showing the operation of the bets Ren <br/> Dogurafu display device,
The operation will be described based on FIG. Measured values in the short period from the present time according to the operation state of the plant equipment are stored on the hard disk as a plurality of trend data groups, and measured values in the long period are stored on the magneto-optical disk. Therefore, first, the trend graph creator selects a group A / B to be displayed from now (step ST1). In FIG. 2, this is for enabling the two trend data groups to be distinguished into a thick line and a thin line, and is actually distinguished by a color difference or the like. Next, a storage medium from which the trend data group is to be read is selected (step ST2). This operation is realized by clicking the HD or MO displayed in the storage medium selection box 10 with the mouse 4, and in this embodiment, the hard disk (HD) is clicked. As a result, the group name of the trend data group stored on the hard disk is displayed in the group name display area 8 of FIG.

Next, a trend data group to be displayed is selected from the group name display area 8 (step S).
T3). In this example, the mouse 4 controls the group 1
Click. Next, for the selected trend data group, a display start / end time, which is a past measurement period to be displayed, is set from the keyboard 3 or the mouse 4 (step ST4). As a result, the data for the set time interval of the display start / end time is extracted from the HD or MO, and the attribute of each trend graph belonging to the selected group 1 is displayed in the trend graph attribute display area 6. In the graph display area 7, a trend graph is displayed for the set display start / end time for the selected group 1 (step ST5). In this way, the trend graph of the first trend data group, Group 1, is displayed first.

Next, another trend data group (referred to as group 2 in this embodiment) is referred to as group 1 described above.
If it is desired to display the graph overlaid on the trend graph (step ST6), the process returns to step ST1, selects group B, selects group 2 in step ST3, and sets the display start / end time. In this way, as shown in FIG. 2, a trend graph based on the two selected trend data groups is simultaneously displayed in the trend graph display area 7.

If the trend graph based on the two trend data groups and the attributes thereof are displayed, the trend graph creator can use the scroll bars 11, 12 as necessary.
The user operates and scrolls the trend graph to check the trend graph and perform data analysis. At this time, the display of the scroll bar changeover switch 13 is separated by clicking the mouse 4, so that two scroll bars 1 corresponding to the display groups A and B shown in FIG.
1 and 12 can be moved independently, and can be scrolled for each of the two display groups A and B. If the display of the scroll bar switch 13 is linked,
The two scroll bars 11 and 12 can be moved in conjunction with each other, and the two display groups A and B can be scrolled simultaneously.

As described above, even when a plurality of pieces of trend data to be displayed are stored in two different trend data groups, they can be displayed on one screen without redefining the trend data groups. . In addition, two types of scroll operations, interlocking and separating, can be performed as needed, and a wide range of trend data can be handled more easily.

Embodiment 2 FIG. The processing in this embodiment is the same as that in the flowchart shown in FIG.
In the selection from step 2 to step ST4, different trend data groups of the same storage medium are selected, and the display start / end times, which are past measurement periods to be displayed, are set to the same time. Also, scroll bar changeover switch 1
The display of 3 is linked.

Next, the operation will be described. By setting the same trend data graph display settings as described above,
As shown in FIG. 4, the two groups A and B are displayed on the screen at the same scale and the same time axis, so that the comparison of each time of the two trend data graphs can be performed at a glance. Also, when the trend data graph could not be displayed on the screen from the specified start time to the end time, scrolling was performed in conjunction with the movement of the scroll bar, so that the time axis could not be displayed with the same time axis You can see the partial graph.

Embodiment 3 FIG. The processing in this embodiment is the same as that in the flowchart shown in FIG.
In the selection of step 2 and step ST3, the same trend data group of the same storage medium is selected, and the setting of the display start / end time in step ST4 of the groups A and B is, for example, different from each other, but each day is different. The start and end times in the attachment are set to the same time.

Next, the operation will be described. By setting as described above, the trend data graph of the same trend data group in the same time zone on different dates can be displayed as shown in FIG. It is easy to know how the date changes.

Embodiment 4 FIG. The processing in this embodiment is the same as that in the flowchart shown in FIG.
In step 2, different storage media are selected by operating the storage medium selection box 10. For example, a hard disk is selected in group A, and a magneto-optical disk is selected in group B. In step ST3, the same trend data group is selected, and in step ST4, the same date and the same time in different years are set. As described above, the hard disk stores a trend data series based on measured values in the short term from the present time, and is updated from old data to new data every short term,
The magneto-optical disk stores a series of trend data based on measured values in the long term and is used as a storage medium for long term storage. Therefore, step ST
In 4, the same date and the same time in different years can be set.

Next, the operation will be described. By setting as described above, the trend data graph of the same trend data group at the same date and time in different years can be displayed as shown in FIG. It is easy to know how it is changing.

[0024]

As described above, according to the present invention, according to this invention, two
Trend data series simultaneously on one screen
Displayed based on these two trend data series.
Two scroll bars corresponding to each trend graph
And these two scrollbars are independent or linked
And set the trend graph of two trend data series.
Scroll the rough independently or scroll
Scroll bar changeover switch
Since it is configured to so that with a, Ru can be more effectively support the analysis work of the trend graph by the trend graph creator. Also, from the start time to the end time,
When the graph cannot be displayed on the screen,
-By scrolling in conjunction with the movement of
In the same way, move the center axis while moving
You can see the rough, and the trend graph creator
More effective support for rendering graph analysis
There is an effect that can be done.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a trend graph display device according to the present invention.

FIG. 2 is an explanatory diagram showing a trend graph display area in Embodiment 1 of the present invention.

FIG. 3 is a flowchart showing the operation of the trend graph display device according to the present invention.

FIG. 4 is an explanatory diagram showing a trend graph display area in Embodiment 2 of the present invention.

FIG. 5 is an explanatory diagram showing a trend graph display area according to Embodiment 3 of the present invention.

FIG. 6 is an explanatory diagram showing a trend graph display area in Embodiment 4 of the present invention.

FIG. 7 is a configuration diagram showing a conventional trend graph display device.

FIG. 8 is an explanatory view showing a conventional trend graph attribute display area.

FIG. 9 is an explanatory diagram showing a conventional trend graph display area.

FIG. 10 is a flowchart showing the operation of a conventional trend graph display device.

[Explanation of symbols]

7 Display (screen), 11, 12 Scroll bar, 13 Scroll bar switch.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G09G 5/00-5/42 G05B 15/02 G06F 3/14-3/153 G06F 17/60

Claims (1)

(57) [Claims] 1. A meter according to an operation state of plant equipment.
Measured values as multiple grouped trend data series
Stored in a storage medium, and the stored trend data system
ColumnOf two trend data series simultaneously on one screen
Display as a trend graph, Each trend group based on those two trend data series
Two scrollbars for rough, Make these two scrollbars independent or linked
And set a trend graph of two trend data series
Scroll independently or scroll in conjunction with
And a scroll bar changeover switch
I got Trend graph display device.