JP2013149151A - Graph displaying device - Google Patents

Abstract

An object of the present invention is to make it possible to surely confirm plot point data on a trend graph.
When a mouse cursor is brought close to a desired plot point P (n), a hairline 8 is displayed for the plot point P (n). In addition, the time input unit 10 is provided, and the hairline 8 is displayed at the plot point closest to the time set in the time input unit 10, or the data condition input unit 11 is provided, and the data value is the data You may display the hairline 8 with respect to the plot point which adapts the conditions set to the condition input part 11. FIG.
[Selection] FIG.

Description

  The present invention relates to a graph display device that displays time-series data in a graph.

  Conventionally, in systems that monitor and control the operating state of plants, etc., measured values such as pressure, liquid volume, and temperature in the plant are collected in time series, and the measured values (time series data) collected in this time series are graphed. To be displayed on the screen of the monitoring / control device.

  For example, the horizontal axis is a time axis indicating time, the vertical axis orthogonal to the time axis is a data axis indicating a data value, and time series data is plotted on an orthogonal plane indicated by the time axis and the data axis. The plotted time series data is displayed on the screen as a trend graph.

  In the trend graph displayed on this screen, if you want to check the detailed values of individual data, move the mouse cursor to the location of the data you want to check on the graph, and use the tooltip (pop-up window) that appears at that position. A method of displaying (for example, refer to Patent Document 1) or a method of moving a hairline line (horizontal line and / or vertical line or both) to a data position by a mouse operation and displaying the data at the position in a data display area (for example, Patent Document 2) is used.

  FIG. 25 shows an example (conventional example 1) in which detailed values of individual data are displayed by moving a mouse cursor to make a tooltip appear. In the figure, X is a time axis, Y is a data axis, time series data is plotted on an orthogonal plane indicated by the time axis X and the data axis Y, and the plotted time series data is connected by a broken line to show a trend. A graph G1 is displayed. In the trend graph G1, when the mouse cursor 101 is moved to the data location to be confirmed on the graph and the mouse is clicked, the tool tip 102 appears, and the time and data value at that position are displayed as numerical information.

  FIG. 26 shows an example (conventional example 2) in which the hairline is moved to display detailed numerical values of individual data in the data display area. In the figure, reference numeral 103 denotes a hairline line composed of a horizontal line L1 and a vertical line H1, and reference numeral 104 denotes a numerical value display section (data display area). In the trend graph G1, when the hairline 103 (intersection P1 between the horizontal line L1 and the vertical line H1) is moved to the position of the desired data by operating the mouse, the time and data value at that position are displayed as numerical information in the numerical display unit 104. Is displayed.

JP 2001-242978 A Japanese Patent Laid-Open No. 7-104968

  In plant monitoring and control, there are cases in which long time span data is displayed in a trend graph and the detailed numerical values of the data of individual plot points are confirmed while checking the transition of the entire data. However, if the time span is long, the data will be dense on the graph (see FIG. 27), and it is difficult to point to the data of each plot point by operating the mouse, and it will be displayed on the tooltip or numerical display. It is not certain whether the numerical information is the numerical information of the plot points.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a graph display device capable of reliably confirming data of plot points on a trend graph. is there.

  In order to achieve such an object, the present invention uses a first axis as a time axis indicating time, a second axis perpendicular to the first axis as a data axis indicating data values, and the first axis and the second axis. It is possible to plot time series data on the orthogonal plane indicated by and display the trend time graph data as a trend graph, and select and specify the desired plot point of the time series data on the trend graph. And a target data pointer display unit for displaying a pointer indicating the plot point as a target data pointer with respect to the plot point of the time series data selected and specified by the selection specification unit, and the target data pointer And a numerical information display means for displaying the data value and time at the plot points of the time series data as numerical information. To.

  According to the present invention, when a plot point of desired time series data on the trend graph is selected and designated by a mouse operation or the like, the data pointer of interest indicating the plot point of the time series data designated and designated is displayed. For example, a hairline line is displayed as the data pointer of interest. In addition to the display of the target data pointer, the data value and time at the plot point of the time series data pointed to by the target data pointer are displayed as numerical information. That is, in the present invention, if the plot point of the time series data is not selected and designated, the data pointer of interest is not displayed and the numerical information is not displayed. Therefore, if the data pointer of interest is displayed, it can be seen that the plot point pointed to by the data pointer of interest is selected and specified, and numerical information of the selected and specified plot point is displayed.

  In the present invention, when the selection specifying means is a cursor that is moved by an operator's operation, the focused data pointer display means is positioned when the cursor is located at a place where a plot point of time series data exists. The plot point of the time series data is set as the plot point of the time series data selected and designated, and the data pointer of interest is displayed for the plot point of the time series data. At this time, the numerical information display means displays the data value and time at the plot point of the time series data pointed to by the data pointer of interest as numerical information.

  In the present invention, when the selection designating means is a condition input unit in which a condition designated by the operator is set, the data pointer display unit of interest selects a plot point of time series data that matches the condition set in the condition input unit The designated time-series data plot points are used, and the data pointer of interest is displayed for the time-series data plot points. At this time, the numerical information display means displays the data value and time at the plot point of the time series data pointed to by the data pointer of interest as numerical information.

When the selection designating means is a condition input unit in which conditions designated by the operator are set, the conditions set in the condition setting unit are set to the time designated by the operator or conform to the predetermined conditions designated by the operator It can be considered as a data value.
When the time set by the operator is set as the condition set in the condition setting unit, the data pointer display means of interest selects and designates the time series data plot point closest to the time set in the condition input unit. As the data plot point, the data pointer of interest is displayed for the plot point of the time series data.
When the condition set in the condition setting unit is a data value that conforms to a predetermined condition designated by the operator, the data pointer display unit of interest matches the predetermined condition set in the condition input unit. The plot point of the time series data is set as the plot point of the selected time series data, and the data pointer of interest is displayed for the plot point of the time series data.

  In the present invention, when there are a plurality of plot points of the selected time series data, the data pointer of interest is displayed for the plot points of the plurality of time series data. In this case, the display form may be displayed differently, for example, by changing the color or shape of the data pointer of interest.

  According to the present invention, there is provided selection specifying means for enabling selection and specification of plot points of desired time series data on the trend graph, and plotting the plot points of the time series data selected and specified by the selection specification means Since the pointer pointing to the point is displayed as the target data pointer and the data value and time at the plot point of the time series data pointed to by the target data pointer are displayed as numerical information, the target data pointer is displayed. If this is the case, the plot point pointed to by the data pointer of interest is selected and specified, and the numerical information of the selected and specified plot point is displayed. It becomes possible to confirm.

1 is a system configuration diagram showing an outline of an embodiment of a process monitoring / control system including a graph display device according to the present invention. It is a block diagram which shows the structure of the principal part of the server apparatus in this process monitoring and control system. It is a block diagram which shows the outline of the hardware constitutions of the monitoring / control apparatus in this process monitoring / control system. It is a figure which shows the example of a display of the trend graph on the display of this monitoring and control apparatus. It is a figure which shows the example of a display of the hairline line (focused data pointer) when a mouse cursor is located in the desired plot point on a trend graph. It is a figure explaining the example (example which moves to the back direction (forward direction) on a time-axis) which moves a hairline line to the plot point which adjoins one by one. It is a figure explaining the example (example moving to the front direction (returning direction) on a time-axis) which moves a hairline line to the plot point which adjoins one by one. It is a figure explaining the example (example which moves to the back on a time axis) which moves a hairline line automatically to the plot point which adjoins one after another. It is a figure explaining the example (example which moves to the front direction on a time axis) which moves a hairline line automatically to the plot point which adjoins one after another. It is a figure which shows the example of a display of the hairline line which positions a mouse cursor on the desired plot point on a trend graph. It is a figure explaining the example (example moving to the back on a time axis) which moves a data pointer of interest automatically to the nearest plot point one after another at a predetermined time interval. It is a figure explaining the example (example moving to the front on a time axis) which moves a data pointer of interest automatically to the nearest plot point one after another at a predetermined time interval. It is a figure explaining the example (example which moves to the back on a time axis) which moves a data pointer of interest automatically to a plot point one by one by a predetermined data number interval. It is a figure explaining the example (example which moves to the front on a time-axis) which moves a data pointer of interest automatically to a plot point one after another by the predetermined data number interval. It is a figure explaining the example (example moved to the back on a time axis) which moves a data pointer of interest automatically to the plot point of the data value which meets predetermined conditions one after another. It is a figure explaining the example (example which moves to the front on a time-axis) which moves a focused data pointer automatically to the plot point of the data value which adapts to predetermined conditions one after another. It is a figure which shows the example which displayed the hairline line with respect to the plot point of the time nearest to the time input into the time input part. It is a figure which shows the example which moved the hairline line with respect to the plot point of the time nearest to the time input into the time input part. It is a figure which shows the example which was made to display a hairline line on all the plot points of the data value which satisfy | fills predetermined conditions. It is a figure which shows the other example of the attention data pointer. It is a figure which shows the example which displayed multiple trend graphs. It is a figure which shows the example which made the tooltip appear in the inside of a graph, and was used as the numerical value display part. It is a figure which shows the example which made the screen different from the display screen of a trend graph appear, and was used as the numerical value display part. It is a functional block diagram of a monitoring and control apparatus. It is a figure explaining the prior art example 1 at the time of confirming the detailed numerical value of each data on a trend graph. It is a figure explaining the prior art example 2 at the time of confirming the detailed numerical value of each data on a trend graph. It is a figure which shows the trend graph with a long time span.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a system configuration diagram showing an outline of an embodiment of a process monitoring / control system including a graph display device according to the present invention.

  This process monitoring / control system controls not-shown field devices (for example, switches, valves, pumps, pressure gauges, flow meters, thermometers, etc.) installed in a plant or the like, and from the field devices, for example, pressure, liquid A controller 1 that collects measurement values such as quantity and temperature in time series, a server device 2 that periodically acquires measurement values (time series data) collected by the controller 1 in time series, and a controller according to an operator's instruction 1 and the server apparatus 2 and a monitoring / control apparatus 3 for editing and creating a plant monitoring / control screen.

  FIG. 2 is a block diagram illustrating a configuration of a main part of the server device 2. The server device 2 includes a data acquisition unit 21 that periodically acquires time-series data of field devices from the controller 1 and a data storage unit 22 that stores the acquired time-series data. The time series data is stored in the data storage unit 22 as a pair of the data value and the time when the data is collected.

  FIG. 3 is a block diagram showing an outline of the hardware configuration of the monitoring / control apparatus 3. In the figure, 3-1 is a CPU, 3-2 is a RAM, 3-3 is a ROM, 3-4 is a storage device such as a hard disk, 3-5 to 3-7 are interfaces, 3-8 is a display, 9 is a keyboard, and 3-10 is a mouse.

  The CPU 3-1 obtains various input information given via the interfaces 3-5 to 3-7, and operates according to programs stored in the ROM 3-3 and the storage device 3-4 while accessing the RAM 3-2. . The storage device 3-4 stores a trend graph display program as a program specific to the present embodiment. The trend graph display program is provided in a state of being recorded on a recording medium such as a CD-ROM, and is read from the recording medium and installed in the storage device 3-4.

  In this example, the server device 2 and the monitoring / control device 3 are provided separately, but they may be integrated. Further, the server device 2 and the controller 1 may be integrated.

[Embodiment 1: Example of selecting and specifying a desired plot point with a mouse cursor]
Hereinafter, a first example (first embodiment) of the processing operation of the CPU 3-1 according to the trend graph display program stored in the storage device 3-4 will be described.

[Trend graph display]
When the CPU 3-1 issues a trend graph display request by designating a measurement point and a period as a request from the operator, the server device 2 stores time series data of the designated period for the designated measurement point. The obtained time series data is graphed and displayed on the display 3-8. FIG. 4 shows a display example of time series data on the display 3-8.

  In this case, the CPU 3-1 uses the time axis X indicating the time as the horizontal axis, the data axis Y indicating the data value as the vertical axis orthogonal to the time axis X, and the orthogonality indicated by the time axis X and the data axis Y. The time series data of the designated measurement points is plotted on the plane, and the plotted time series data (points indicated by black circles) are connected by a broken line and displayed on the display 3-8 as a trend graph G1.

  In addition, the CPU 3-1 displays the numerical value display unit 5 and the operation unit 6 on the display screen of the trend graph G1. The numerical value display section 5 is provided with a time display window W1 and a data value display window W2. The operation unit 6 is provided with a right arrow button (forward button) BT1 and a left arrow button (return button) BT2.

[Display of hairline]
In this trend graph G1, when it is desired to confirm detailed numerical values of the data of individual plot points, the operator operates the mouse 3-10 to position the mouse cursor 7 at a place where a desired plot point exists ( (See FIG. 5). In FIG. 5, as an example, a desired plot point is P (n), and the mouse cursor 7 placed between the plot points P (n) and P (n + 1) is moved to approach the plot point P (n). An example is shown. In FIG. 5, P (n + 1) indicates a plot point immediately after P (n) on the time axis X, and P (n−1) is a plot immediately before P (n) on the time axis X. Indicates a point.

  When the CPU 3-1 recognizes that the mouse cursor 7 approaches the plot point P (n) and is located at the place where the plot point P (n) exists, that is, the fact that the plot point P (n) has been selected and designated. When recognized, the hairline 8 is displayed as a pointer pointing to the plot point P (n). This hairline 8 is a data pointer of interest referred to in the present invention. In this example, the hairline 8 is a perpendicular line.

  The CPU 3-1 displays the data value and time at the plot point P (n) pointed to by the hairline line 8 as numerical information on the numerical value display unit 5 simultaneously with the display of the hairline line 8. In this case, the time is displayed on the display window W1, and the data value is displayed on the display window W2.

  In this case, the operator has selected and designated the plot point P (n) pointed to by the hairline 8 when the hairline 8 is displayed, and the numerical information displayed on the numerical display unit 5 is It is known that this is numerical information of the selected and designated plot point P (n). Thereby, the operator can select the desired plot point P (n) in the trend graph G1, and can confirm the detailed information of the data of the selected plot point P (n) reliably.

  In this example, the mouse cursor 7 placed between the plot points P (n) and P (n + 1) is brought closer to the plot point P (n), but the plot points P (n) and P (n + 1) When the mouse cursor 7 is placed between the two, the hairline 8 may be automatically displayed at a point where the plot point immediately before or after the mouse cursor 7 is present. In this case, when the mouse cursor 7 is placed closer to the plot point P (n) than P (n + 1), the CPU 3-1 determines that the mouse cursor 7 is positioned where the plot point P (n) exists. Recognize and automatically display the hairline 8 for the plot point P (n).

[Movement of hairline line: example of moving hairline line to adjacent plot points one by one (movement example 1 of hairline line)]
The operator clicks the forward button BT1 or the return button BT2 of the operation unit 6 with a mouse when he / she wants to confirm detailed information on the data of the next plot point. For example, when it is desired to confirm detailed information of the data of the plot point P (n + 1), the forward button BT1 is clicked with the mouse, and when it is desired to confirm detailed information of the data of the plot point P (n−1), the return button is clicked. Click on BT2 with the mouse.

  When the forward button BT1 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the backward direction on the time axis X from the operator, and the time designated by this instruction. The hairline line 8 is moved in the backward direction on the axis X, and the moved hairline line 8 is stopped at the plot point P (n + 1) of the latest time series data (see arrow (1) shown in FIG. 6). Simultaneously with the stop of the hairline 8, the data value and time at the plot point P (n + 1) indicated by the hairline 8 are displayed as numerical information on the numerical display 5.

  When the return button BT2 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the forward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the forward direction on the axis X, and the moved hairline 8 is stopped at the plot point P (n-1) of the latest time series data (see arrow (2) shown in FIG. 7). . Simultaneously with the stop of the hairline 8, the data value and time at the plot point P (n−1) indicated by the hairline 8 are displayed as numerical information on the numerical display 5.

  Similarly, every time the forward button BT1 is pressed, the CPU 3-1 moves the hairline 8 backward on the time axis X, stops at the plot point of the adjacent time series data, and the return button BT2 Each time the button is pressed, the hairline 8 is moved in the forward direction on the time axis X and stopped at the plot point of the adjacent time series data. Further, the data value and time at the stopped plot point are displayed on the numerical value display unit 5 as numerical information.

[Movement of hairline line: Example of automatically moving hairline lines to adjacent plot points one after another (movement example 2 of hairline lines)]
In FIG. 5, the operator clicks the forward button BT1 or the return button BT2 of the operation unit 6 when he / she wants to confirm the detailed information of the data of the next plot point. For example, when it is desired to confirm detailed information of data of each plot point in the backward direction on the time axis X, the forward button BT1 is clicked with the mouse, and detailed information of data of each plot point in the forward direction on the time axis X If the user wants to confirm, the mouse clicks on the return button BT2.

  When the forward button BT1 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the backward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the backward direction on the axis X, and the moved hairline 8 is stopped at the plot point P (n + 1) of the latest time series data (see arrow (1) shown in FIG. 8). Simultaneously with the stop of the hairline 8, the data value and time at the plot point P (n + 1) indicated by the hairline 8 are displayed as numerical information on the numerical display 5.

  Then, after a predetermined waiting time has elapsed, the hairline 8 is moved again in the backward direction on the time axis X, and the moved hairline 8 is stopped at the plot point P (n + 2) of the latest time series data ( Arrow (2) shown in FIG. 8). Simultaneously with the stop of the hairline 8, the data value and time at the plot point P (n + 2) indicated by the hairline 8 are displayed as numerical information on the numerical display 5.

  Similarly, the CPU 3-1 moves the hairline 8 in the backward direction on the time axis X each time a predetermined waiting time elapses, and successively stops at adjacent plot points. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  When the return button BT2 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the forward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved forward on the axis X, and the moved hairline 8 is stopped at the plot point P (n-1) of the latest time series data (see arrow (1) shown in FIG. 9). . Simultaneously with the stop of the hairline 8, the data value and time at the plot point P (n−1) indicated by the hairline 8 are displayed as numerical information on the numerical display 5.

  Then, after a predetermined waiting time has elapsed, the hairline 8 is again moved forward on the time axis X, and the moved hairline 8 is stopped at the plot point P (n-2) of the most recent time series data. (See arrow (2) shown in FIG. 9). Simultaneously with the stop of the hairline 8, the data value and time at the plot point P (n−2) indicated by the hairline 8 are displayed as numerical information on the numerical display 5.

  Similarly, the CPU 3-1 moves the hairline 8 forward on the time axis X each time a predetermined waiting time elapses, and successively stops at adjacent plot points. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  Thus, in the movement example 2 of the hairline line, the hairline 8 is automatically moved in the designated direction on the time axis by simply clicking the forward button BT1 and the return button BT2, and the moved hairline. The line 8 is sequentially stopped at each plot point in the designated direction on the time axis X in time series order, and the data value and the time at the stopped plot point are displayed on the numerical value display unit 5 as numerical information. In this case, the operator can recognize the transition of the plot points on the trend graph G1 as a moving image while viewing the entire image of the trend graph G1.

[Movement of hairline: Example of automatically moving hairline to the nearest plot point one after another at a predetermined time interval (Example 3 of moving hairline)]
In the hairline line movement example 3, a numerical value input unit 9 is displayed as a condition input unit in the display screen of the trend graph G1, as shown in FIG.

  In FIG. 10, when the operator wants to confirm detailed information on the data of the next plot point, the operator inputs a desired time interval (for example, 1 hour) as a rule (skip rule) designated by the operator in the numerical value input unit 9. After the input (see FIG. 11), the forward button BT1 or the return button BT2 of the operation unit 6 is clicked with the mouse.

  For example, if you want to confirm detailed information on the data of each plot point in the backward direction on the time axis X according to the specified skip rule, click the forward button BT1 and click on the time axis X according to the specified skip rule. When it is desired to confirm the detailed information of the data of each plot point in the forward direction, the return button BT2 is clicked with the mouse.

  When the forward button BT1 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the backward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the backward direction on the axis X.

  In this case, the movement width of the hairline 8 is set to the time interval set in the numerical value input unit 9, but when there is no plot point of time series data on the time interval, the plot point of the latest time series data The hairline 8 is stopped at the previous or subsequent plot point (see arrow (1) shown in FIG. 11). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  Then, after a predetermined waiting time has elapsed, the hairline 8 is moved again in the backward direction on the time axis X. Also in this case, when the movement width of the hairline 8 is set to the time interval set in the numerical value input unit 9 and there is no plot point of time series data on the time interval, the plot point of the latest time series data ( The hairline 8 is stopped at the previous or subsequent plot point (see arrow (2) shown in FIG. 11). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  In the same manner, the CPU 3-1 moves the hairline 8 in the backward direction on the time axis X at the time interval set in the numerical value input unit 9 every time a predetermined waiting time elapses. Let's stop one after another. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  When the return button BT2 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the forward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the forward direction on the axis X. In this case, the movement width of the hairline 8 is set to the time interval set in the numerical value input unit 9, but when there is no plot point of time series data on the time interval, the plot point of the latest time series data The hairline 8 is stopped at the previous or subsequent plot point (see arrow (1) shown in FIG. 12). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  After a predetermined waiting time, the hairline 8 is moved again in the forward direction on the time axis X. Also in this case, when the movement width of the hairline 8 is set to the time interval set in the numerical value input unit 9 and there is no plot point of time series data on the time interval, the plot point of the latest time series data ( The hairline 8 is stopped at the previous or subsequent plot point (see arrow (2) shown in FIG. 12). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  In the same manner, the CPU 3-1 moves the hairline 8 in the forward direction on the time axis X at the time interval set in the numerical value input unit 9 every time a predetermined waiting time elapses. Let's stop one after another. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  Thus, in the movement example 3 of the hairline line, the hairline 8 is automatically moved in the designated direction on the time axis by simply clicking the forward button BT1 and the return button BT2, and the moved hairline. The line 8 sequentially stops at the nearest plot point in the specified direction on the time axis X at the time interval set in the numerical value input unit 9, and the data value and time at the stopped plot point are numerical information. It is displayed on the numerical value display section 5. In this case, the operator can recognize the transition of the plot points on the trend graph G1 as a moving image at a set time interval while viewing the entire image of the trend graph G1.

[Movement of hairline lines: Example of automatically moving hairline lines to plot points one after another at a predetermined number of data intervals (hairline line movement example 4)]
In the hairline line movement example 4 as well, a numerical value input unit 9 is displayed as a condition input unit in the display screen of the trend graph G1, as shown in FIG. 10 corresponding to FIG.

  In FIG. 10, when the operator wants to confirm detailed information on the data of the next plot point, a desired data number interval (for example, 3) is specified as a rule (skip rule) designated by the operator in the numerical value input unit 9. Is input (see FIG. 13), and the forward button BT1 or the return button BT2 of the operation unit 6 is clicked with the mouse.

  For example, if you want to confirm detailed information on the data of each plot point in the backward direction on the time axis X according to the specified skip rule, click the forward button BT1 and click on the time axis X according to the specified skip rule. When it is desired to confirm detailed information on the data of each plot point in the forward direction, the return button BT2 is clicked with the mouse.

  When the forward button BT1 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the backward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the backward direction on the axis X. In this case, the movement width of the hairline 8 is set to the data number interval set in the numerical value input unit 9, and the hairline 8 is stopped at the plot points separated by the data number interval (see arrow (1) shown in FIG. 13). . Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  Then, after a predetermined waiting time has elapsed, the hairline 8 is moved again in the backward direction on the time axis X. Also in this case, the movement width of the hairline 8 is set to the data number interval set in the numerical value input unit 9, and the hairline 8 is stopped at the plot points separated by the data number interval (see arrow (2) shown in FIG. 13). ). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  In the same manner, the CPU 3-1 moves the hairline 8 in the backward direction on the time axis X at the data number interval set in the numerical value input unit 9 every time a predetermined waiting time elapses. Stop one after another at spaced plot points. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  When the return button BT2 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the forward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the forward direction on the axis X. In this case, the movement width of the hairline 8 is set to the data number interval set in the numerical value input unit 9, and the hairline 8 is stopped at the plot points separated by the data number interval (see arrow (1) shown in FIG. 14). . Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  After a predetermined waiting time, the hairline 8 is moved again in the forward direction on the time axis X. Also in this case, the movement width of the hairline 8 is set to the data number interval set in the numerical value input unit 9, and the hairline 8 is stopped at the plot points separated by the data number interval (see arrow (2) shown in FIG. 14). ). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  In the same manner, the CPU 3-1 moves the hairline 8 in the forward direction on the time axis X at the data number interval set in the numerical value input unit 9 every time a predetermined waiting time elapses. Stop one after another at spaced plot points. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  In this way, in the movement example 4 of the hairline line, the hairline 8 is automatically moved in the designated direction on the time axis by simply clicking the forward button BT1 and the return button BT2, and this moved hairline. The line 8 is sequentially stopped at the plot points in the designated direction on the time axis X at the data number interval set in the numerical value input unit 9, and the data value and the time at the stopped plot points are numerical values as numerical information. It is displayed on the display unit 5. In this case, the operator can recognize the transition of the plot points on the trend graph G1 as a moving image at the set data number interval while viewing the entire image of the trend graph G1.

[Movement of hairline line: Example of automatically moving the hairline line one after another to the plot points of the data values that meet the predetermined conditions (Movement example 5 of hairline line)]
Also in the hairline line movement example 5, the numerical value input unit 9 is displayed as the condition input unit on the display screen of the trend graph G1 as shown in FIG. 10 corresponding to FIG.

  In FIG. 10, when the operator wants to confirm detailed information on the data of the next plot point, a data value (for example, a rule (skip rule) specified by the operator in the numerical input unit 9 that meets a desired condition (for example, 50% or more) (see FIG. 15), and the forward button BT1 or the return button BT2 of the operation unit 6 is clicked with the mouse.

  For example, if you want to confirm detailed information on the data of each plot point in the backward direction on the time axis X according to the specified skip rule, click the forward button BT1 and click on the time axis X according to the specified skip rule. When it is desired to confirm the detailed information of the data of each plot point in the forward direction, the return button BT2 is clicked with the mouse.

  When the forward button BT1 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the backward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the backward direction on the axis X. In this case, the hairline 8 moved backward on the time axis X is stopped at the plot point of the data value that meets the conditions set in the numerical value input unit 9 (see arrow (1) shown in FIG. 15). . Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  Then, after a predetermined waiting time has elapsed, the hairline 8 is moved again in the backward direction on the time axis X. Also in this case, the hairline 8 moved backward on the time axis X is stopped at the plot point of the data value that meets the conditions set in the numerical value input unit 9 (see arrow (2) shown in FIG. 15). ). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  In the same manner, the CPU 3-1 moves the hairline 8 in the backward direction on the time axis X every time a predetermined waiting time elapses, and sets the data value that matches the conditions set in the numerical value input unit 9. Stop one after another at plot points. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  When the return button BT2 is clicked with the mouse, the CPU 3-1 recognizes the movement start instruction for the hairline 8 by designating the forward direction on the time axis X from the operator, and the time designated by this instruction. The hairline 8 is moved in the forward direction on the axis X. In this case, the hairline 8 moved backward on the time axis X is stopped at the plot point of the data value that meets the conditions set in the numerical value input unit 9 (see arrow (1) shown in FIG. 16). . Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  Then, after a predetermined waiting time has elapsed, the hairline 8 is moved again in the backward direction on the time axis X. Also in this case, the hairline 8 moved forward on the time axis X is stopped at the plot point of the data value that meets the conditions set in the numerical value input unit 9 (see arrow (2) shown in FIG. 16). ). Simultaneously with the stop of the hairline 8, the data value and the time at the plot point indicated by the hairline 8 are displayed on the numerical display 5 as numerical information.

  Similarly, the CPU 3-1 moves the hairline 8 in the forward direction on the time axis X every time a predetermined waiting time elapses, and sets the data value that meets the conditions set in the numerical value input unit 9. Stop one after another at plot points. Further, at each stop position of the hairline 8, the data value and the time at the stopped plot point are displayed on the numerical display unit 5 as numerical information.

  Thus, in the movement example 5 of the hairline line, the hairline 8 is automatically moved in the designated direction on the time axis by simply clicking the forward button BT1 and the return button BT2, and the moved hairline. The line 8 sequentially stops at the plot point in the designated direction on the time axis X that matches the condition in which the data value is set in the numerical value input unit 9, and the data value and time at the stopped plot point are numerical values. Information is displayed on the numerical display 5 as information. In this case, the operator recognizes the transition of the plot points on the trend graph G1 in a moving image by extracting only the plot points of the data values that meet the desired conditions while viewing the overall image of the trend graph G1. Is possible.

  As described above, the hairline line movement examples 1 to 5 are shown as typical examples, and the operator can perform a simple operation such as clicking the forward button BT1 or the return button BT2 of the operation unit 6 with a simple operation. While the entire G1 is displayed, it is possible to accurately point to the data of each plot point, confirm detailed data at each plot point, omit complicated operations, and save the data of each plot point. Confirmation work can be performed efficiently. In addition, since the hairline 8 automatically moves to the plot points on the trend graph G1 and stops, the data of the plot points on the trend graph G1 can be reliably obtained without knowledge of irregular data collection intervals. It is possible to confirm, and confirmation errors can be reduced.

[Embodiment 2: Example of setting a time and selecting and specifying a desired plot point]
Next, a second example (second embodiment) of the processing operation of the CPU 3-1 according to the trend graph display program stored in the storage device 3-4 will be described.

  In Embodiment 1 described above, when the mouse cursor 7 is positioned at a place where a desired plot point exists, the hairline 8 is displayed for the plot point. However, in Embodiment 2, FIG. As shown, the time input unit 10 is provided, and the hairline 8 is displayed at the plot point at the time closest to the time set in the time input unit 10.

  In this example, “2011/04/01 15:00:00” is set as the time in the time input unit 10. As a result, the CPU 3-1 sets the plot point P (2011/04/01 16:00:00) as the plot point having the smallest time difference from the time set in the time input unit 10 in the trend graph G <b> 1. The hairline 8 is displayed for n).

  In the example in which the time input unit 10 is provided, as shown in FIG. 18, by setting the time in the time input unit 10 from the state in which the hairline 8 is displayed at the plot point P (i), the time input unit 10 The hairline 8 can also be moved to the plot point at the time closest to the time set to 10.

  In this example, “2011/04/01 15:00:00” is set in the time input unit 10 as the time. As a result, the CPU 3-1 sets the plot point P (2011/04/01 16:00:00) as the plot point having the smallest time difference from the time set in the time input unit 10 in the trend graph G <b> 1. The hairline 8 is moved to n).

  As described above, in the example in which the time input unit 10 is provided, if the rough time is set, the hairline 8 is displayed or moved at an appropriate plot point, so there is no knowledge of the time series data collection time. It becomes easy for the operator to search for the target data.

[Embodiment 3: Example in which a predetermined condition is set and a desired plot point is selected and specified]
Next, a third example (third embodiment) of the processing operation of the CPU 3-1 according to the trend graph display program stored in the storage device 3-4 will be described.

  In Embodiment 1 described above, when the mouse cursor 7 is positioned at a place where a desired plot point exists, the hairline 8 is displayed for the plot point. In Embodiment 3, FIG. As shown, the data condition input unit 11 is provided, and the hairline 8 is displayed for all plot points whose data values meet the conditions set in the data condition input unit 11.

  In this example, “50% or more” is set in the data condition input unit 11 as a desired condition. Thereby, CPU3-1 displays the hairline 8 with respect to all the plot points in which the data value corresponds to the conditions set to the data condition input part 11 in the trend graph G1. In this example, the hairline 8 is displayed for each plot point in a different display form. For example, the hairline 8 is displayed with different colors and shapes. Thereby, it becomes easy to grasp the distribution of the data group to be confirmed. In addition, the display form of the hairline 8 may not necessarily be different, and may be displayed in the same display form.

  In Embodiments 1 to 3 described above, the hairline line 8 is displayed as the data pointer of interest, but the hairline line 8 is not necessarily a vertical line but may be a horizontal line or both a vertical line and a horizontal line. (See FIG. 20 (a)). Further, a cross-shaped marker as shown in FIG. 20 (b) may be used as long as it can be determined that the plot point is pointed, and a star-shaped marker as shown in FIG. 20 (c). It may be a marker or the like.

  In the first to third embodiments described above, the operation unit 6 including the forward button BT1 and the return button BT2 is provided. However, the functions of the button BT1 and the return button BT2 that advance to the arrow keys of the keyboard 3-9 are provided. It is also possible to give an instruction to start moving forward and forward on the time axis X by operating the arrow key.

  In the first to third embodiments described above, one trend graph is displayed to simplify the description, but a plurality of trend graphs may be displayed. For example, as shown in FIG. 21, a plurality of time series data having the same collection time is displayed on the same screen as trend graphs G1 and G2, and a hairline 8 is displayed on the trend graphs G1 and G2. I will let you. In this case, the numerical value display unit 5 displays the data value and time of each plot point of the trend graphs G1 and G2 indicated by the hairline 8.

  In the first to third embodiments described above, the numerical value display unit 5 is provided outside the display area AR1 of the trend graph G1, but a tooltip appears inside the graph to form the numerical value display unit 5 (see FIG. 22), a screen different from the display screen of the trend graph G1 may appear to form the numerical value display unit 5 (see FIG. 23).

  FIG. 24 shows a functional block diagram of the monitoring / control device 3 described above. The monitoring / control device 3 has a horizontal axis as a time axis X indicating time, a vertical axis orthogonal to the time axis X as a data axis Y indicating data values, and an orthogonal plane indicated by the time axis X and the data axis Y. The time series data is plotted on the top, and the plotted time series data is connected by a broken line and displayed on the display 3-8 as the trend graph G1, and the desired time series data on the trend graph G1 And a selection / designation unit 32 that enables the selection / designation of the plot points, and the hair / hairline 8 indicating the plot points with respect to the plot points of the time-series data selected and designated by the selection / designation unit 32 is displayed as the data pointer of interest. The data value and the time at the plot point of the time-series data indicated by the data pointer display processing unit 33 and the hairline 8 are numerical values. And a numerical information display processing section 34 to be displayed on the numerical display section 5 as a broadcast.

  In the first embodiment, when the selection designating unit 32 is the mouse cursor 7 and the data pointer display processing unit 33 is positioned at the place where the plot point of the time series data exists, the position of the mouse cursor 7 is set at that place. The plot point of the time series data to be selected is set as the plot point of the selected time series data, and the hairline 8 is displayed for the plot point of the time series data.

  In the second embodiment, the selection specifying unit 32 is the time input unit 10, and the plot point of the time series data closest to the time set in the time input unit 10 is selected as the plot point of the selected time series data. The hairline 8 is displayed for the time series data plot points.

  In the third embodiment, the selection specifying unit 32 is used as the data condition input unit 11, and the time series data in which the data value is selected and specified the plot point of the time series data matching the conditions set in the data condition input unit 11. The hairline 8 is displayed for the plot points of the time series data.

[Extension of the embodiment]
The present invention has been described above with reference to the embodiment, but the present invention is not limited to the above embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the technical idea of the present invention. Each embodiment can be implemented in any combination within a consistent range.

  DESCRIPTION OF SYMBOLS 1 ... Controller, 2 ... Server apparatus, 21 ... Data acquisition part, 22 ... Data storage part, 3 ... Monitoring and control apparatus, 3-1 ... CPU, 3-2 ... RAM, 3-3 ... ROM, 3-4 ... Storage device, 3-5 to 3-7 ... interface, 3-8 ... display, 3-9 ... keyboard, 3-10 ... mouse, 5 ... numerical value display unit, W1 ... time display window, W2 ... display of data value Window, 6 ... operation unit, BT1 ... Arrow button to the right (forward button), BT2 ... Arrow button to the left (return button), 7 ... Mouse cursor, 8 ... Hairline line (target data pointer), 9 ... Numerical value input unit, 10 ... Time input unit, 11 ... Data condition input unit, 31 ... Trend graph display processing unit, 32 ... Selection designation unit, 33 ... Data pointer display processing unit of interest, 34 ... Numerical information display processing unit, G1, G2 ... Trend Off.

Claims (6)

The first axis is a time axis indicating time, the second axis orthogonal to the first axis is a data axis indicating a data value, and time-series data is on an orthogonal plane indicated by the first axis and the second axis. , And a trend graph display means for displaying the plotted time series data as a trend graph,
A selection / designating means for enabling selection / designation of plot points of desired time-series data on the trend graph;
A focused data pointer display means for displaying a pointer indicating the plotted point as a focused data pointer with respect to the plotted point of the time series data selected and designated by the selection designating means;
A graph display device comprising: numerical information display means for displaying, as numerical information, a data value and a time at a plot point of time series data pointed to by the data pointer of interest. The graph display device according to claim 1,
The selection specifying means is:
A cursor that is moved by the operation of the operator.
The focused data pointer display means includes
When the cursor is located at a place where the plot point of the time series data exists, the plot point of the time series data located at the place is set as the plot point of the selected time series data, and the time series data A graph display device that displays the data pointer of interest for a plot point. The graph display device according to claim 1,
The selection specifying means is:
It is a condition input part where conditions specified by the operator are set.
The focused data pointer display means includes
The plot point of time series data that meets the conditions set in the condition input unit is set as the plot point of the selected time series data, and the data pointer of interest is displayed for the plot point of the time series data A graph display device characterized by the above. In the graph display device according to claim 3,
The condition set in the condition setting unit is a time designated by the operator,
The focused data pointer display means sets the plot point of the time series data closest to the time set in the condition input unit as the plot point of the time series data selected and designated, with respect to the plot point of the time series data. A graph display device that displays the data pointer of interest. In the graph display device according to claim 3,
The condition set in the condition setting unit is a data value that conforms to a predetermined condition specified by the operator,
The data pointer display means of interest uses a plot point of time series data whose data value conforms to a predetermined condition set in the condition input unit as a plot point of the selected time series data, and this time series data A graph display device that displays the data pointer of interest for the plotted points. In the graph display device according to claim 5,
When there are a plurality of plot points of the time-series data selected and designated, the target data pointer display means displays the target data pointer in different display forms with respect to the plot points of the plurality of time-series data. A graph display device characterized by that.

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