JP2019184323A - Display device and program for display - Google Patents

Abstract

To provide a display device and a program for display with which it is possible for a user to suitably recognize a correspondence relation between respective displays, even when measured value data is displayed by different time scales.SOLUTION: Provided is a display device 1 comprising: a data acquisition unit 10 for acquiring measured value data and representative value data; a display unit 2 having a display region 2a in which a representative value display of a relatively large time scale based on the representative value data and a measured value display of a relative small time scale based on the measured value data are selectively executed; a switching command unit 30 for generating a switching command signal; and a processing unit 50 for controlling the display in the display region 2a. The processing unit 50 includes magnification means 52 for magnifying representative value display so as to become closer to the time scale T2 of the measured value data when the switching command signal is detected and the display in the display region 2a is the representative value display, and first display transition means 53 for transitioning the representative value display after magnification to the measured value display.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a display device and a display program.

  There is known a waveform display method for displaying a physical quantity representing electrical characteristics such as voltage, current, or power on a desired time scale. For example, Patent Document 1 proposes a waveform display method in which an actual measurement value of an AC signal is acquired with a sampling period on the order of several kHz and displayed on a display screen.

JP-A-5-281264

  In recent years, in response to a request to change the time scale of the screen display, a waveform that generates and displays time-series data of the average value (effective value) of actual measurement values for each predetermined period longer than the sampling period from the actual measurement values The display method is executed. By displaying so-called trend data in which such time-series data of average values (effective values) is plotted, it becomes easy for the user to grasp medium- to long-term trends in the physical quantity to be measured.

  For example, when you want to know whether or not a specific event (such as a power failure) has occurred on a relatively long time scale, such as several days, in a factory facility or an electrical facility used in a power supply system to a general household, The above trend data display is convenient. On the other hand, display of actual measurement value data is convenient from the viewpoint of grasping finer changes in measurement values so as to investigate the cause of the specific event in detail.

  For such a situation, the present inventors have made it possible to switch between the display of trend data and the display of actual measurement value data according to the user's selection operation, etc., and these data in parallel on one screen area. I came up with a display method that can be displayed.

  However, when the time scale between the trend data and the actual measurement value data is greatly different, the shapes of these displays may be greatly different. For this reason, even when these displays are selectively switched or when they are displayed in parallel on one screen area, the user may not be able to intuitively recognize the correspondence between these graphs. is there.

  The present invention has been made paying attention to such problems, and even when displaying measured value data at different time scales, the user preferably recognizes the correspondence between the displays. An object of the present invention is to provide a display device and a display program that can be used.

  According to an aspect of the present invention, a data acquisition unit that acquires representative value data including actual measurement value data and a representative value for each predetermined period of each actual measurement value included in the actual measurement value data, and a relative value based on the representative value data A display unit having a display area in which a representative display of a large time scale and a real measurement value display of a relatively small time scale based on actual measurement data are selectively executed, and switching between the representative value display and the actual measurement value display A switching command unit that generates a command signal, a processing unit that controls display in a display area, and a display device are provided. The processing unit detects a switching command signal, and when the display in the display area is a representative value display, the processing unit expands the representative value display so as to approach the time scale of the actual measurement value data, First display transition means for transitioning the representative value display to the actual measurement value display.

  Further, according to another aspect of the present invention, a representative value comprising a relatively small time scale actual measurement value display based on the actual measurement value data and a representative value for each predetermined period of each actual measurement value included in the actual measurement value data. Provided is a display program for executing display control in a display area for a display device having a display area having a display area in which a representative display of a relatively large time scale based on data and a display area is selectively executed Is done. This display program detects the switching command signal between the representative value display and the actual measured value display and displays the representative value display close to the time scale of the actual measured value data when the display area display is the representative value display. And a display program for executing a first display transition process for transitioning the enlarged representative value display to the actual measurement value display.

  According to this aspect, it is possible to switch from the representative value display to the actual measurement value display while bringing the representative value display aspect close to the actual measurement value display aspect in the display area. Therefore, it is possible to reduce the visual discomfort given to the user when switching the display. As a result, it is possible to allow the user to appropriately recognize the mutual relationship between the effective value display and the actual measured value display before and after the switching.

FIG. 1 is a diagram schematically showing an external configuration of a display device according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating functions of the display device. FIG. 3 is a flowchart illustrating the flow of display switching control according to the first embodiment. FIG. 4 is a diagram for explaining the effective value display enlargement process. FIG. 5 is a diagram for explaining the transition from the enlarged effective value display to the actual measured value display. FIG. 6 is a diagram for explaining functions of a processing unit related to display switching control. FIG. 7 is a flowchart illustrating the flow of display switching control according to the second embodiment. FIG. 8 is a diagram for explaining enlargement processing of large scale effective value display. FIG. 9 is a diagram for explaining the transition from the enlarged large scale effective value display to the medium scale effective value display. FIG. 10 is a diagram for explaining the enlargement process of the medium scale effective value display. FIG. 11 is a diagram for explaining the transition from the medium scale effective value display after enlargement to the actual measurement value display.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a diagram illustrating an example of an external configuration of a display device 1 according to an embodiment of the present invention. As illustrated, the display device 1 of the present embodiment includes a display 2 as a display unit, a display start button 3, and a display switching button 4. The display 2 is composed of a display, particularly a liquid crystal panel or a touch panel. The display screen of the display 2 has a display area 2a for displaying measured value data (actual measured value data and representative value data) of electrical characteristic quantities such as voltage, current, power, and resistance value.

  The display start button 3 is a button for starting display of measured value data in the display area 2a, and is configured to be operated (pressed) by the user.

  The display switching button 4 is a button for switching the measurement value data displayed in the display area 2a. More specifically, the display switching button 4 is a button for starting switching between the display of the actual measured value data of the electrical characteristic amount and the display of the trend data (representative value data). The display switching button 4 is also configured to be operable (pressed) by the user.

  The display device 1 may be configured using hardware of a general-purpose computer such as a tablet terminal, a smartphone, or a personal computer, instead of the form shown in FIG.

  FIG. 2 is a block diagram illustrating functions of the display device 1. As illustrated, the display device 1 includes an input unit 10, a storage unit 20, an operation unit 30, a display 2, and a processing unit 50.

  The input unit 10 includes an A / D conversion circuit. The A / D conversion circuit is obtained by receiving an analog signal indicating an actual measurement value measured by a measurement circuit (not shown) and converting the analog signal into a digital signal at a predetermined sampling frequency (several kHz to several hundred kHz). Acquire waveform data as actual measurement data. Further, the input unit 10 transmits actual measurement value data to the processing unit 50.

  The storage unit 20 stores a main storage memory such as a RAM (Random Access Memory) that stores data used for execution of each process by the processing unit 50 and a display program for executing the display switching process according to the present embodiment. And a non-volatile memory such as a ROM (Read Only Memory). The storage unit 20 may separately include an auxiliary storage device such as a hard disk.

  The operation unit 30 can be realized by a configuration that accepts an operation from a user such as a mechanical button, a touch sensor, or a keyboard and a mouse. In the present embodiment, the operation unit 30 includes the display start button 3 and the display switching button 4 described above. When the display switching button 4 is operated by the user, a signal indicating that the operation has been executed is output to the processing unit 50 as a switching command signal.

  The display device 2 selectively displays the actual measurement value data and the representative value data based on the actual measurement value data in the display area 2a based on the display command signal from the processing unit 50.

  The processing unit 50 is realized by arithmetic means such as a CPU (Central Processing Unit). The processing unit 50 calculates a representative value for each predetermined period of each actual measurement value included in the actual measurement value data received from the input unit 10. Then, representative value data including the calculated representative values is generated. In particular, in the present embodiment, the processing unit 50 calculates an effective value as a representative value of an electrical characteristic amount including an AC signal, and generates effective value data including the calculated effective values as representative value data.

  Further, the processing unit 50 generates an effective value graph Gm based on effective value data as an effective value display for execution in the display area 2a. In addition, the processing unit 50 generates an actual measurement value graph Gr based on actual measurement value data as an actual measurement value display to be executed in the display area 2a. The processing unit 50 outputs a display command signal for displaying the actual measurement value graph Gr, the effective value graph Gm, and a graph obtained by enlarging the effective value graph Gm described later to the display 2.

  The effective value graph Gm of this embodiment is displayed on a time scale T1 of about 30 seconds, for example, and the time interval between the effective values is set longer than the time interval of each actual measurement value. Further, the actual measurement value graph Gr is displayed on a time scale T2 of about 1 second, for example, and the time interval between the actual measurement values is set to about 0.001 to 0.01 seconds. That is, the effective value graph Gm is a graph showing trend data of measured values over the medium to long term, in which each effective value is plotted. On the other hand, the actual measurement value graph Gr is a graph representing the actual measurement value itself.

  Next, display switching control by the processing unit 50 will be described with reference to FIGS.

  FIG. 3 is a flowchart showing a flow of display switching control by the processing unit 50. In addition, the following processes are performed on the assumption that the processing unit 50 is performing actual measurement value display or effective value display in the display area 2a.

  In step S100, when the processing unit 50 detects a switching command signal generated due to an operation on the display switching button 4 by the user, the processing unit 50 determines whether or not the display in the current display area 2a is an effective value display. To do. If the processing unit 50 determines that the display is effective value display, the processing unit 50 proceeds to the process of step S110.

  In step S110, the processing unit 50 executes a representative value display enlargement process.

  FIG. 4 is a diagram for explaining the effective value display enlargement process. In particular, FIG. 4A shows an effective value graph Gm by an effective value display before enlargement. FIG. 4B shows an effective value expansion graph Gm ′ by displaying effective values after expansion.

  The effective value graph Gm shown in FIG. 4A has n plots P [m] (m is 1 to n). For simplification of the drawing, FIG. 4A shows only a part of the plot P [m] of the effective value graph Gm.

  As understood with reference to FIG. 4 (b), the processing unit 50, as an effective value display enlargement process, sets the number of plots P [k] of the effective value graph Gm to a predetermined threshold value (P in FIG. 4 (b)). A process of narrowing the display range of the display area 2a step by step is executed until the number decreases to 5) [k] to P [k + 4].

  More specifically, the processing unit 50 sets the number of plots P [m] to be displayed in the display area 2a based on the plot P [k + 2] where the effective value is the minimum value as five plots P [k] to A process of decreasing in steps is performed until only P [k + 4] is displayed. That is, a process of narrowing the display range that is the entire horizontal axis and the entire vertical axis of the display area 2a in a stepwise manner. Thereby, in the display area 2a, a display in which the time interval between adjacent effective values in the effective value graph Gm is expanded stepwise is performed. After the enlargement process, the effective value enlargement graph Gm ′ including only the five plots P [k] to P [k + 4] shown in FIG. 4B is displayed in the display area 2a. That is, the processing unit 50 changes the display range of the display area 2a from the display mode of FIG. 4A to the time scale T1 of the effective value graph Gm so as to gradually approach the time scale T2 of the actual measurement value graph Gr. It narrows in steps toward the display mode of (b).

  In addition, the process part 50 can set the point used as the base point (enlargement center) of an expansion process on arbitrary values on the effective value graph Gm. On the other hand, for example, in the portion of the plot P [k + 2], the effective value graph Gm sharply decreases, so that a specific event such as a power outage may have occurred in the power facility to be monitored via the effective value. Can be judged to be high.

  Therefore, for example, the processing unit 50 of the present embodiment has an effective value lower than the threshold value based on a threshold value of an effective value determined in advance from the viewpoint of determining whether or not a specific event is highly likely to occur. A point in the region on the effective value graph Gm, in particular, a plot P [k + 2] as the minimum value is set as the base point of the enlargement process. Thereby, it becomes a suitable display from a viewpoint of making the user visually recognize the occurrence of a specific event and focus on the event.

Returning to FIG. 3, step S120 after the enlargement process of step S110 will be described. In step S120, the processing unit 50 transitions the effective value expansion graph Gm ′ relating to the effective value display after the expansion to the actual measurement value graph Gr that is the actual measurement value display.
Switch to.

  FIG. 5 is a diagram for explaining the transition from the enlarged effective value display to the actual measured value display. In particular, FIG. 5A shows a mode of displaying the effective value after enlargement, and FIG. 5B shows a mode of displaying the actual measurement value.

  As illustrated, the processing unit 50 according to the present embodiment includes actual measurement values included in the time domain in the vicinity of the plot P [k + 2] in the effective value expansion graph Gm ′ by the effective value display after expansion illustrated in FIG. Is displayed in the display area 2a as an actual measurement value graph Gr. Note that this time region is indicated by a portion sandwiched between two alternate long and short dashed lines shown in FIG.

  On the other hand, when the processing unit 50 determines that the display is not the effective value display, that is, when the actual measurement value display is executed, the processing unit 50 proceeds to the process of step S130.

  In step S130, the processing unit 50 shifts the actual measurement value display to the enlarged effective value display.

  In step S140, the processing unit 50 executes a reduction process for reducing the enlarged effective value display (see arrows from FIG. 4B to FIG. 4A). Specifically, the processing unit 50 displays from the state of the representative value display after enlargement (see FIG. 4B) (the state with five plots) until the number of display plots of the representative value display before enlargement is reached. Increase the number of plots step by step. In such a process of step S140, the display range of the display area 2a is gradually expanded. That is, the reduction process of the present embodiment is a process for performing the reverse operation to the enlargement process in step S110.

  According to the display switching control, the effective value graph Gm related to the effective value display is automatically expanded stepwise from the effective value display (see FIG. 4A) automatically using the switching command signal as a trigger. A series of display processes that are displayed and finally transition to the actual measured value display (FIG. 5B) through the display of the effective value enlarged graph Gm ′ (see FIG. 4A or FIG. 5A). It will be executed on the display area 2a. For this reason, the display of the display area 2a from the effective value display to the enlarged effective value display serves to visually image the relationship between the effective value display and the actual measured value display. As a result, the user can more easily recognize the relationship between these displays even when switching between the effective value display and the actual measurement value display. The same effect can be obtained when switching from the actual measurement value display to the effective value display.

  Further, the effective value display and the actual measurement value display are executed in one display area 2a. Therefore, compared to the case where the RMS value display and the actual measurement value display are displayed in parallel on one screen area, even if the area of the display screen is the same, the RMS value graph Gm and the actual measurement value graph relating to each display are displayed. Gr can be displayed large.

  Next, in FIG. 6, functions of the processing unit 50 relating to display switching control are simply shown. As illustrated, the processing unit 50 includes a determination unit 51 that executes the process of step S100, an enlargement unit 52 that executes the process of step S110, and a first display transition unit 53 that executes the process of step S120. , Second display transition means 54 for executing the process of step S130, and reduction means 55 for executing the process of step S140.

  The operational effects of the present embodiment described above will be described.

  In the present embodiment, the input unit 10 as a data acquisition unit that acquires representative value data including actual measurement value data and a representative value (effective value) for each predetermined period of each actual measurement value included in the actual measurement value data, and the representative value A display 2 having a display area 2a in which representative display of a relatively large time scale T1 based on data and actual measurement value display of a relatively small time scale T2 based on actual measurement value data are selectively executed; It has the operation part 30 as a switching command part which produces | generates the switching command signal between a display (effective value display) and an actual measurement value display, and the process part 50 which controls the display in the display area 2a.

  Then, when the processing unit 50 detects the switching command signal and the display in the display area 2a is the effective value display, the processing unit 50 expands the effective value display so as to approach the time scale T2 of the actual measurement value data (step S110), and first display transition means 53 (step S120) for transitioning the enlarged effective value display (see FIG. 4B) to the actual measurement value display.

  According to this, in the display area 2a, switching from the effective value display to the actual measured value display can be executed while bringing the effective value display mode close to the actual measured value display mode. Therefore, it is possible to reduce the visual discomfort given to the user when switching the display. As a result, it is possible to allow the user to appropriately recognize the mutual relationship between the effective value display and the actual measured value display before and after the switching.

  In this embodiment, the enlargement unit 52 narrows the time range of the display area 2a step by step so that the number of effective value data plots (n) in the display area 2a is reduced to a predetermined threshold value (5). Thus, enlargement of the effective value display (change in the direction from FIG. 4A to FIG. 4B) is executed.

  Thereby, when the user switches the display of the display area 2a from the effective value display to the actual measured value display, the process in which the effective value display is expanded step by step until the actual display transition timing is reached. It can be visually recognized. In other words, the user can visually recognize the process in which the effective value display gradually approaches the actual measured value display, so that the effect of reducing the visual discomfort in switching from the effective value display to the actual measured value display can be achieved. This will be further improved.

  Further, according to the display device 1 of the present embodiment, the processing unit 50 further detects the switching command signal and displays the actual measurement value when the display in the display area 2a is the actual measurement value display (No in step S100). Is provided with second display transition means 54 (step S130) for transitioning to the effective value display after enlargement, and reduction means 55 (step S140) for reducing the effective value display after enlargement.

  Thereby, when switching from the actual measurement value display to the effective value display in the display area 2a, the effective value before the enlargement is displayed while changing to the effective value display after the enlargement which is the time scale T1a relatively close to the time scale T2 of the actual measurement value display. The value display can be reduced. Thereby, it is possible to switch from the actual measurement value display to the effective value display while reducing the visual discomfort given to the user. As a result, it is possible to allow the user to appropriately recognize the mutual relationship between the effective value display and the actual measured value display before and after the switching.

  On the other hand, the reduction means 55 reduces the effective value display after the enlargement by gradually expanding the time range so that the number of plots (5) of the measured value data increases to a predetermined threshold (n) (FIG. 4). (Change of direction from (b) to FIG. 4 (a)).

  As a result, when the display in the display area 2a is switched from the actual measurement value display to the effective value display, the user can also visually recognize the process in which the actual measurement value display is gradually reduced until the actual switching timing is reached. it can. Therefore, the effect of reducing the visual discomfort in switching from the actual measurement value display to the effective value display is further improved.

  The predetermined threshold for the number of plots used for the enlargement process by the enlargement unit 52 and the predetermined threshold for the number of plots used for the reduction process by the reduction unit 55 can be arbitrarily set according to the situation.

  In particular, the predetermined threshold value for the number of plots used for the enlargement processing is the time for displaying the effective value after enlargement as much as possible from the viewpoint of further suppressing the visual discomfort given to the user when switching from the effective value display to the actual measurement value display. The scale T1a is brought close to the time scale T2 of the actual measurement value display, and the effective value expansion graph Gm ′ related to the display of the effective value after the expansion is not in a state where substantial visual information such as a straight line or one point is lost. It is preferable to set. In addition, it is preferable to set the threshold of the number of plots used for the reduction process from the same viewpoint.

  In the present embodiment, the relative measurement based on the representative value data including the actual measurement value display of the relatively small time scale T2 based on the actual measurement value data and the representative value for each predetermined period of each actual measurement value included in the actual measurement value data. Display in the display area 2a with respect to the display device 1 having the display 2 as the display unit having the display area 2a in which the representative value display (effective value display) of the time scale T1 that is large and the display area 2a is selectively executed. A display program for executing the control is provided.

In particular, the display program detects the switching command signal between the effective value display and the actual measured value display, and when the display in the display area 2a is the effective value display, the effective value display is changed to the time scale T2 of the actual measured value data. Enlargement processing (step S110) for enlarging so as to approach the first display transition processing (step S120) for transitioning the effective value display after the enlargement (see FIG. 4B) to the actual measurement value display is executed. Let
Is provided.

  Further, the display program causes the display device 1 to change the actual measurement value display to the enlarged effective value display when the display in the display area 2a is the actual measurement value display (No in step S100). You may comprise so that a display transition process (step S130) and the reduction process which reduces the effective value display after expansion may be performed.

(Second Embodiment)
Hereinafter, the second embodiment will be described mainly with reference to FIGS. In addition, the same code | symbol is attached | subjected to the element similar to 1st Embodiment, and the description is abbreviate | omitted.

  In the present embodiment, the representative value data includes long-period data composed of effective values (hereinafter also referred to as “long-cycle effective values”) of actual measurement values for each relatively long period, and relatively short-period data. Medium cycle data consisting of effective values of the actual measured values (hereinafter also referred to as “medium cycle effective values”). Note that the medium cycle data of the present embodiment corresponds to the effective value data described in the first embodiment.

  Therefore, the effective value display of the present embodiment is the large scale effective value display of the relatively large time scale T1L based on the long cycle data and the medium scale effective value display of the relatively small time scale T1M based on the medium cycle data. And including. Details of this embodiment will be described below.

  FIG. 7 is a flowchart showing a flow of display switching control by the processing unit 50 of the present embodiment. Note that the processing related to the display switching control according to the present embodiment is also executed after detecting an operation on the display switching button 4.

  As illustrated, in step S200, the processing unit 50 determines whether or not an effective value display (large scale effective value display or medium scale effective value display) is being executed. If the processing unit 50 determines that the effective value display is being executed, the processing unit 50 proceeds to the processing of step S210.

  In step S210, the processing unit 50 further determines whether or not the display area 2a is executing large-scale effective value display. If the processing unit 50 determines that the large-scale effective value display is being performed, the processing unit 50 proceeds to the processing of step S220. On the other hand, if the processing unit 50 determines that the large scale effective value display is not being executed, that is, if it is determined that the medium scale effective value display is being executed, the processing unit 50 proceeds to the process of step S240.

  In step S220, the processing unit 50 executes a large-scale effective value display expansion process in the same manner as the expansion process described in the first embodiment.

  FIG. 8 is a diagram for explaining enlargement processing of large scale effective value display. In particular, FIG. 8A shows a large scale graph GL with large scale effective value display. FIG. 8B shows a large-scale graph GL ′ by displaying a large-scale effective value after enlargement.

  The processing unit 50 displays the display area 2a until the number of plots displayed in the display area 2a in the large-scale graph GL decreases to a predetermined threshold value (five P [k] to P [k + 4] in FIG. 8B). By narrowing the display range in stages, the display of the large scale graph GL is expanded.

  Returning to FIG. 7, step S220 executed after step S210 will be described. In step S230, the processing unit 50 transitions the display of the large-scale graph GL related to the large-scale effective value display after the enlargement to the display of the medium-scale effective value graph Gm that is the medium-scale effective value display. The transition will be described in more detail.

  FIG. 9 is a diagram for explaining the transition from the enlarged large scale effective value display to the medium scale effective value display. As shown in the figure, the processing unit 50 of the present embodiment sandwiches the display of the large-scale graph GL ′ by the large-scale effective value display after enlargement shown in FIG. Transition to the display of the medium scale effective value graph Gm (see FIG. 9B) formed by plotting the medium period effective values included in the time domain.

  Returning to FIG. 7, step S240 executed after step S210 or step S230 will be described. In step S240, the processing unit 50 executes the enlargement process of the medium scale effective value display by the same method as that described in step S220.

  FIG. 10 is a diagram for explaining the enlargement process of the medium scale effective value display. As shown in the figure, the processing unit 50 displays the medium scale effective value display after enlargement from the medium scale effective value graph Gm of the medium scale effective value display, similarly to the enlargement processing of the large scale effective value display described in step S220. The enlargement process to the medium scale effective value expansion graph Gm ′ is executed (change from FIG. 10A to FIG. 10B).

  Returning to FIG. 7, step S250 executed after step S240 will be described. In step S250, the processing unit 50 transitions the medium scale effective value expansion graph Gm ′, which is the medium scale effective value display after the expansion, to the actual measurement value graph Gr, which is the actual measurement value display.

  FIG. 11 is a diagram for explaining the transition from the medium scale effective value display after enlargement to the actual measurement value display. As shown in the figure, the processing unit 50 of the present embodiment has a time domain (indicated by a one-dot chain line) in the vicinity of the plot P [k + 2] in the medium scale effective value expansion graph Gm ′ by the medium scale effective value display shown in FIG. An actual measurement value included in a portion between two straight lines) is displayed in the display area 2a as an actual measurement value graph Gr.

  Returning to FIG. 7, the processing unit 50 proceeds to processing after step S <b> 260 when it is determined in step S <b> 200 that the actual measurement value display is not executed, that is, when it is determined that the actual measurement value display is executed.

  In step S260, the processing unit 50 shifts the actual measurement value display to the medium scale effective value display after the enlargement (change from FIG. 11B to FIG. 11A).

  In step S270, the processing unit 50 executes a reduction process for reducing the medium scale effective value display after the enlargement (change from FIG. 10B to FIG. 10A).

  In step S280, the processing unit 50 shifts the medium scale effective value display after reduction (corresponding to the medium scale effective value display before enlargement in this embodiment) to the large scale effective value display after enlargement (FIG. 9B). ) To FIG. 9 (a)).

  In step S290, the processing unit 50 executes a reduction process for reducing the enlarged large-scale effective value display (change from FIG. 8B to FIG. 8A).

  According to the display switching control, from the large-scale effective value display (see FIG. 8A) automatically using the switching command signal as a trigger, the enlarged large-scale effective value display (FIG. 8B or FIG. 9). (See (a)), medium scale effective value display (see FIG. 9B or FIG. 10A), enlarged medium scale effective value display (see FIG. 10B or FIG. 11A) A series of display processes that transition to the actual measurement value display (see FIG. 11B) are executed on one display area 2a. For this reason, the display of the display area 2a according to the display process serves to visually image the relevance between the large scale effective value display, the medium scale effective value display, and the actual measured value display. Become. As a result, the user can more easily recognize the relationship between the displays even when the display is switched.

  The large scale effective value display, the medium scale effective value display, and the actual measurement value display are executed in one display area 2a. Therefore, compared with the case where these displays are displayed in parallel on one screen area, even if the area of the display screen is the same, the large scale effective value display and the actual measurement value graph Gr for each display are more Large display.

  The operational effects of the present embodiment described above will be described.

  In the present embodiment, the representative value data includes long-period data composed of representative values (effective values) of each actual measurement value for each relatively long period, and representative values (effective values) for each actual measurement value for each relatively short period. Medium period data consisting of The representative value display includes a large scale effective value display (large scale graph GL) of a relatively large time scale T1L based on long cycle data, and a medium scale effective value of a relatively small time scale T1M based on medium cycle data. Display (medium scale effective value graph Gm).

  When the enlargement means 52 detects the switching command signal and determines that the display in the display area 2a is the large scale effective value display (Yes in step S210), the large scale effective value display is displayed as the medium scale effective value display. (See step S220, FIG. 8 (a) and FIG. 8 (b)), the first display transition means 53 displays the enlarged large scale effective value display to the medium scale effective value display. (See step S230, FIG. 9A and FIG. 9B), the magnifying means 52 determines that the display of the display area 2a is the medium scale effective value display (No in step S210) or the first When the transition to the medium scale effective value display (step S230) is executed by the display transition means 53, the medium scale effective value display is enlarged (step S240), and the first display transition is performed. Stage 53 shifts the scale effective value displayed in the enlarged the actual measured value display (step S250).

  As a result, even when switching from the two effective value displays, the large scale effective value display and the medium scale effective value display, to the actual measured value display, the visual discomfort given to the user is reduced and the mutual display between these displays is reduced. The user can recognize the relationship appropriately.

  Therefore, for example, large scale effective value display used when checking events that occur in power facilities over a long period of time such as several weeks, and medium scale effective value display that represents a trend of a shorter period compared to large scale effective value display In addition, the actual measurement value (instantaneous value) used when a detailed cause investigation of the event is required is given to the user by a series of automatic display processes executed on the display area 2a in response to the switching command signal. On the other hand, while maintaining the information property of each of these displays, it is possible to appropriately recognize their mutual relationship.

  In addition, when the determination unit 51 determines that the display in the display area 2a is an actual measurement value display, the second display transition unit 54 makes a transition to the medium scale effective value display after the enlargement (step S260), and the reduction unit 55 Reduces the medium scale effective value display after the enlargement so as to approach the time scale T1L ′ of the large scale effective value display after the enlargement (step S270), and the second display transition means 54 reduces the medium scale effective value after the reduction. The display is changed to the large scale effective value display after enlargement (step S280), and the reduction means 55 reduces the large scale effective value display after enlargement (step S290).

  As a result, even if it is desired to switch the display in the order of actual measurement value display, medium scale effective value display, and large scale effective value display, depending on the situation, the display It is possible to make the user recognize the interrelation appropriately.

  The embodiment of the present invention has been described above. However, the above embodiment only shows a part of application examples of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. Absent.

  For example, in the first embodiment, the example in which the effective value data display based on one type of representative value data is switched to the actual measured value data display has been described. Further, in the second embodiment, assuming that there are two types of data, long-period data and medium-period data, as effective value data to be displayed in the display area 2a, from long-period data or medium-period data to actual measurement value data display An example of performing the switching has been described. However, when there are three or more types of effective value data, the process of enlargement processing and / or reduction processing described in the above embodiment is applied to switching from any of these three types of effective value data to actual measurement value data display. You may do it.

  Furthermore, in the enlargement process described in the first embodiment, when the effective value graph Gm for effective value display is enlarged to the effective value enlarged graph Gm ′, the number of steps of the enlargement can be arbitrarily set. Similarly, the number of reduction stages can be arbitrarily set. Similarly, in the enlargement process or the reduction process in the second embodiment, the number of enlargement steps or the number of reduction steps can be arbitrarily set.

  In addition, in the effective value display and the actual measurement value display in the display area 2a, the time of the base point so that the user can more clearly identify the base point (plot P [k + 2]) for executing the above-described enlargement process or reduction process. An arbitrary mark indicating may be displayed.

  Furthermore, in the display switching control of each of the embodiments described above, whether the display of the current display area 2a is an effective value display, triggered by the detection of a switching command signal based on an operation by the user with the display switching button 4, is an actual measured value. An example has been described in which each process is executed after determining whether it is a display (step S100 in FIG. 3 and step S200 in FIG. 7).

  However, the present invention is not limited to this, for example, a first switching command signal that causes the processing unit 50 to execute control for switching the display from the effective value display of the largest scale toward the actual measurement value display through the enlargement process, The display switching in the display area 2a is performed based on each of the second switching command signals that causes the processing unit 50 to execute control for switching the display from the actual measurement value display toward the effective value display of a larger scale through the reduction process. You may make it perform control. In this case, for example, by providing the display device 1 with a first switching button for generating a first switching command signal and a second switching button for generating a second switching command signal, the user's selection can be made. The corresponding display switching control can be executed.

  In each of the above embodiments, an example in which the representative value of the actual measurement value is the effective value has been described. However, an average value, a maximum value, and a minimum value may be employed instead of the effective value.

  Furthermore, a storage medium storing a display control program for causing the display device 1 described in the above embodiments to perform display switching control, at least an enlargement unit 52 of the processing unit 50 shown in FIG. 6, and a first display A display control method including processing (steps S110 to S140 in FIG. 3 and steps S220 to S290 in FIG. 3) executed by the transition unit 53, the second display transition unit 54, and the reduction unit 55 is also provided. It is included within the scope of matters described in the description at the time of filing in this application.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Display 2a Display area 3 Display start button 4 Display switching button 10 Input part 20 Memory | storage part 30 Operation part 50 Processing part 51 Judgment means 52 Enlargement means 53 1st display transition means 54 2nd display transition means 58 Reduction means

Claims (6)

A data acquisition unit that acquires representative value data including actual measurement value data and a representative value for each predetermined period of each actual measurement value included in the actual measurement value data;
A display unit having a display area in which representative display of a relatively large time scale based on the representative value data and actual measurement value display of a relatively small time scale based on the actual measurement value data are selectively executed;
A switching command unit for generating a switching command signal between the representative value display and the actual measured value display;
A processing unit for controlling display in the display area,
The processor is
When the switching command signal is detected and the display in the display area is the representative value display, an enlarging means for enlarging the representative value display so as to approach the time scale of the actual measurement value data;
First display transition means for transitioning the representative value display after expansion to the actual measurement value display,
Display device. The display device according to claim 1,
The representative value data includes long-period data composed of representative values of the respective actual measured values for each relatively long period, and medium-period data composed of representative values of the respective actual measured values for each relatively short period. ,
The representative value display includes a large scale effective value display of a relatively large time scale based on the long period data, and a medium scale effective value display of a relatively small time scale based on the medium period data,
The enlarging means detects the switching command signal, and when the display of the display area is the large scale effective value display, the large scale effective value display approaches the time scale of the medium scale effective value display. Magnify,
The first display transition means transitions the large scale effective value display after the enlargement to the medium scale effective value display,
When the display of the display area is the medium scale effective value display or when the transition to the medium scale effective value display by the first display transition means is executed, the enlargement means Expand the value display so that it approaches the time scale of the actual measured value data,
The first display transition means transitions the medium scale effective value display after expansion to the actual measurement value display,
Display device. The display device according to claim 2,
The enlarging means executes the enlargement of the representative value display by gradually reducing the display range of the display area so that the number of plots of the representative value data in the display area is reduced to a predetermined threshold value.
Display device. The display device according to any one of claims 1 to 3,
The processing unit further includes:
Second display transition means for transitioning the actual measurement value display to the enlarged representative value display when the switching command signal is detected and the display area display is the actual measurement value display;
Reduction means for reducing the representative value display after the enlargement;
Comprising
Display device. Representation value of relatively large time scale based on representative value data consisting of representative value for each predetermined period of each actual measurement value included in the actual measurement value data, and display of actual measurement value on relatively small time scale based on actual measurement value data A display program for executing display control in the display area for a display device including a display unit having a display area in which display is selectively executed,
When a switching command signal between the representative value display and the actual measurement value display is detected and the display in the display area is the representative value display, the representative value display is brought closer to the time scale of the actual measurement value data. Enlargement processing to enlarge,
A first display transition process for transitioning the representative value display after expansion to the actual measurement value display;
Is characterized in that
Display program. A display program according to claim 5,
In addition to the display device,
A second display transition process for detecting the switching command signal and transitioning the actual measurement value display to the enlarged representative value display when the display in the display area is the actual measurement value display;
Reduction processing for reducing the representative value display after the enlargement,
Display program.

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