JP2018169935A - Graph display device and graph display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display data of a plurality of series and to confirm variation information of data. SOLUTION: A representative data generation unit 11 for generating representative data representing data for each predetermined period based on data collected from equipment arranged in a plant, and data used for generating representative data. A variation information generation unit 12 that generates variation information, a graph display unit 13 that displays a line graph in which representative data are arranged in chronological order, and a selection detection unit 14 that detects a selection operation for any part of the line graph. , And the graph display unit 13 displays the variation information corresponding to the representative data in the period to which the detected portion belongs in a manner distinguishable from the line graph. [Selection diagram] Fig. 1

Description

  The present invention relates to a graph display device and a graph display method.

  In a system that monitors equipment, etc., installed in plants such as factories, data collected from multiple equipment, etc. is accumulated, and the accumulated data is used to monitor the state of the plant, abnormalities, accidents, etc. Analyzing. In order to monitor data trends and abnormal values, it is desirable to display long-term data so that it can be viewed in a bird's-eye view. One of the methods for displaying long-term data is a method of displaying data in time series using a line graph or the like.

  However, in the method of displaying data in time series, data exceeding the number of pixels (number of pixels) provided in a graph drawing area on a display screen such as a PC cannot be displayed. Therefore, when it is necessary to display long-term data, the data is displayed after being compressed. In this case, for example, there is a method of dividing a display target period into a plurality of periods, calculating a representative value (for example, an average value, a median value) of data for each period, and plotting and displaying the representative value. . However, in this method, variation information including the maximum value, minimum value, and variance of data is lost and cannot be confirmed.

  On the other hand, as a method of displaying without losing data variation information, for example, there is a boxplot used for a stock price chart or the like. However, when graphs of a plurality of series (a plurality of devices) are displayed using box-and-whisker plots, the visibility of the graph is reduced due to overlapping of box-plot charts of different series. That is, the boxplot is suitable for displaying data for each series, but is not suitable for displaying a mixture of data of a plurality of series.

  Patent Document 1 below discloses a display device that displays long-term plant data within a limited display area without losing the characteristics and trends of accumulated long-term plant data. Specifically, the display device of Patent Document 1 extracts changes in plant data as the characteristics of the occurrence event, divides the plant data for each extracted feature into a plurality of division categories, and has small features (other divisions). The number of times that the same change pattern appears in the section is small or the degree of change is small).

JP, 2006-201011, A

  The display device of Patent Document 1 displays data for each series, and compresses the time axis (horizontal axis) of the graph according to the summarization rate, which is a ratio for summarizing the display of the divided sections. It is difficult to confirm data variation information in each division. That is, the display device of Patent Document 1 is not suitable for displaying a plurality of series of data and confirming data variation information.

  An object of the present invention is to provide a graph display device and a graph display method capable of displaying a plurality of series of data and confirming data variation information.

  The graph display device according to an aspect of the present invention includes a representative data generation unit that generates representative data representing the data for each predetermined period based on data collected from equipment arranged in a plant, and the representative data A variation information generation unit that generates variation information of the data used when generating the data, a graph display unit that displays a line graph in which the representative data are arranged in time series, and any part on the line graph A selection detection unit that detects a selection operation, and the graph display unit displays variation information corresponding to the representative data in a period to which the detected location belongs in a manner distinguishable from the line graph.

  The said aspect WHEREIN: The said graph display part is good also as drawing the said representative data on the said line graph with a predetermined marker so that it can identify with a line.

  In the above aspect, the graph display unit may switch whether or not to draw so that the representative data can be identified on the line graph in accordance with a user operation instruction.

  In the above aspect, the graph display unit may draw the representative data so as to be identified on the line graph for a predetermined period for each predetermined period.

  The said aspect WHEREIN: The said graph display part is good also as displaying the said dispersion | variation information on the said line graph so that a background may be permeate | transmitted.

  In the above aspect, the representative data may be an average value or a median value of the data for each predetermined period.

  In the above aspect, the variation information may include at least one of a maximum value, a minimum value, and a variance of the data for each predetermined period.

  A graph display method according to another aspect of the present invention is a method controlled by a processor, and based on data collected from equipment arranged in a plant, representative data representing the data for each predetermined period is displayed. A representative data generation step to generate, a variation information generation step to generate variation information of the data used when generating the representative data, and a graph display step to display a line graph in which the representative data are arranged in time series A selection detecting step for detecting a selection operation for any location on the line graph, and the graph display step includes the variation information corresponding to the representative data in the period to which the detected location belongs, Display in a manner distinguishable from the line graph.

  ADVANTAGE OF THE INVENTION According to this invention, the graph display apparatus and graph display method which can display the data of multiple series and can confirm the dispersion | variation information of data can be provided.

It is a figure which illustrates the composition of the graph display device in an embodiment. It is a figure which illustrates the graph displayed on the graph display apparatus shown in FIG. It is a figure which illustrates the graph displayed on the graph display apparatus shown in FIG. It is a figure which illustrates the graph displayed on the graph display apparatus shown in FIG. 3 is a flowchart for explaining an example of the operation of the graph display apparatus shown in FIG. 1. It is a figure which illustrates the graph in a modification.

  A preferred embodiment of the present invention will be described with reference to the accompanying drawings. In addition, in each figure, what attached | subjected the same code | symbol has the same or similar structure.

  FIG. 1 is a block diagram illustrating a schematic configuration of a graph display device according to an embodiment. The graph display device 1 includes, for example, a representative data generation unit 11, a variation information generation unit 12, a graph display unit 13, and a selection detection unit 14 as functional configurations. Details of these parts will be described later.

  The graph display device 1 includes, for example, a CPU (Central Processing Unit), a memory, and an input / output interface as a physical configuration. The memory includes, for example, a ROM (Read Only Memory) and HDD (Hard Disk Drive) that store programs and data processed by the CPU, and a RAM (Random Access Memory) mainly used as various work areas for control processing. Etc. are included. These elements are connected to each other via a bus. The CPU executes the program stored in the ROM and processes the data received via the input / output interface and the data developed in the RAM, so that the functions of each part of the graph display device 1 are expressed.

  The collected data DB 3 shown in FIG. 1 is a database that stores various data collected from various devices arranged in the plant, for example.

  Various devices arranged in the plant include, for example, devices equipped with a HART (Highway Addressable Remote Transducer) communication function and devices compatible with Foundation Fieldbus (FF) technology.

  Specifically, various sensor devices that detect temperature, pressure, flow rate, etc., valve positioners that control various valves such as pressure control valves and flow control valves, and various actuators that operate pumps, fans, etc. are used as devices. be able to.

  Various data collected from various devices include, for example, measurement data such as temperature, pressure, and flow rate, control data such as valve opening, and the like. The measurement time and the control time are added to the measurement data and the control data, respectively.

  The representative data generation unit 11 illustrated in FIG. 1 extracts data of a plurality of series (plural devices) to be monitored from various data stored in the collected data DB 3 and collects the data every aggregation period (predetermined period). Generate representative data. The multiple series and the aggregation period to be monitored can be appropriately set according to the series monitored by the administrator (user) and the data interval necessary for monitoring. As the representative data, for example, an average value or a median value of data in each aggregation period can be used.

  The variation information generation unit 12 generates variation information based on the data used when generating the representative data. The variation information includes, for example, the maximum value, minimum value, and variance of data in each aggregation period.

  The graph display unit 13 displays a line graph in which representative data is arranged in time series on the display 5. The graph display unit 13 draws the representative data on the line graph so that it can be identified from the line portion. For example, as shown in FIGS. 2 and 3, markers M1 and M2 are displayed at the drawing positions of the representative data on the line graph. By displaying the markers M1 and M2, the representative data can be easily discriminated visually, and the representative data can be easily selected.

  When any representative data on the line graph is selected, the graph display unit 13 displays variation information corresponding to the selected representative data in a manner distinguishable from the line graph. As a display in a manner distinguishable from the line graph, for example, as shown in FIGS. 2 and 3, a screen G1b that pops up by placing (or clicking) a mouse pointer or a cursor on the markers M1 and M2 of the representative data , G2b is applicable.

  The selection detection unit 14 detects a selection operation for the marker corresponding to the representative data on the line graph. Specifically, the selection detection unit 14 detects that a mouse pointer, a cursor, or the like is set (or clicked) on the marker of the representative data.

  Here, FIGS. 2A and 2B illustrate a screen G1a that displays a line graph, and a screen G1b that pops up by selecting a marker M1 that represents representative value data on the line graph. It is. The three line graphs on the screen G1a are line graphs in which the average values calculated for each series and for each aggregation period are arranged in time series as representative data based on the measured data collected from the three series. . The box-and-whisker diagram on the screen G1b is a box-and-whisker diagram representing variation information in one series corresponding to the representative data of the selected marker M1.

  The box-and-whisker diagram on the screen G1b in FIG. 2A displays variation information in the aggregation period of the selected representative data. The box-and-whisker plot on the screen G1b in FIG. 2B expands the display section and also displays variation information in the aggregation period before and after the selected representative data.

  FIGS. 3A and 3B are diagrams illustrating a screen G2a that displays a line graph, and a screen G2b that pops up by selecting a marker M2 indicating representative value data on the line graph. is there. The three line graphs on the screen G2a are line graphs in which the average values calculated for each series and for each aggregation period are arranged in time series as representative data based on the measured data collected from the three series. . The line graph on the screen G2b is a line graph representing variation information in one series corresponding to the representative data of the selected marker M2.

  The line graph on the screen G2b in FIG. 3A displays variation information in the aggregation period of the selected representative data. The line graph on the screen G2b in FIG. 2B expands the display section and also displays variation information in the aggregation period before and after the selected representative data.

  As shown in FIGS. 4A and 4B, the background of the pop-up screen G3b may be transmitted, and the screen G3b may be overlaid on the screen G3a displaying the line graph. As a result, the variation information can be confirmed without obstructing the display of the line graph.

  Next, an example of the operation of the graph display device will be described with reference to FIG.

  First, the representative data generating unit 11 extracts a plurality of series of data to be monitored from various data stored in the collected data DB 3, and generates representative data for each series and for each aggregation period (step S101). ).

  Subsequently, the variation information generation unit 12 generates variation information based on the data constituting the representative data (step S102).

  Subsequently, the graph display unit 13 displays a line graph in which representative data is arranged in time series on the display 5 (step S103). At this time, a marker may be displayed at a location corresponding to each representative data on the line graph.

  Subsequently, the graph display unit 13 determines whether any representative data on the line graph is selected or not (step S104). If this determination is NO (step S104; NO), it waits until it becomes YES.

  On the other hand, if it is determined in step S104 that any of the representative data is selected (step S104; YES), the graph display unit 13 displays the variation information corresponding to the selected representative data. Is popped up (step S105). And this operation | movement is complete | finished.

  As described above, according to the graph display device 1 in the embodiment, representative data that represents data for each series and for each aggregation period is generated based on a plurality of data collected from a plurality of series arranged in the plant. It is possible to generate data variation information used when generating the representative data, display a line graph in which the representative data is arranged in time series, and select any part on the displayed line graph. When an operation is detected, variation information corresponding to representative data in a period to which the detected location belongs can be displayed on a pop-up screen.

  As a result, representative data based on multiple data collected from multiple series arranged in the plant is displayed using a line graph, and variation information corresponding to the location selected on the line graph is displayed on the pop-up screen. Can be displayed. Therefore, according to the graph display device 1 in the embodiment, it is possible to display a plurality of series of data and check data variation information.

[Modification]
The present invention is not limited to the above-described embodiment, and can be implemented in various other forms without departing from the gist of the present invention. For this reason, the said embodiment is only a mere illustration in all points, and is not interpreted limitedly. For example, the above-described processes (steps) can be arbitrarily changed in order as long as the process contents do not contradict, or can be executed in parallel.

  In the above-described embodiment, the marker of representative data is displayed. However, the marker may not be displayed, and whether or not the marker is displayed may be switched.

  When the marker is not displayed, when the selection detection unit 14 detects a selection operation for any part on the line graph, the graph display unit 13 corresponds to the representative data in the aggregation period to which the detected part belongs. The variation information to be displayed may be displayed on the pop-up screen.

  On the other hand, when it is possible to switch whether or not to display the marker, the administrator may arbitrarily switch the setting of whether or not to display, or the mouse pointer or the cursor moves to the vicinity of the representative data. When this is done, the marker of the representative data may be displayed.

  Moreover, it is good also as displaying the marker of one or several representative data for a predetermined period for every predetermined period. For example, after setting the display time (predetermined period) of the marker M3 shown in FIG. 6B, the marker is not displayed as shown in FIG. 6A, and the marker M3 as shown in FIG. 6B. The state of displaying is periodically switched (every predetermined cycle).

DESCRIPTION OF SYMBOLS 1 ... Graph display apparatus, 3 ... Collected data DB, 5 ... Display, 11 ... Representative data generation part, 12 ... Variation information generation part, 13 ... Graph display part, 14 ... Selection detection part

Claims (8)

Based on data collected from equipment arranged in the plant, a representative data generation unit that generates representative data representing the data for each predetermined period;
A variation information generating unit that generates variation information of the data used when generating the representative data;
A graph display unit for displaying a line graph in which the representative data is arranged in time series;
A selection detection unit for detecting a selection operation for any part on the line graph;
With
The graph display unit displays variation information corresponding to the representative data in a period to which the detected location belongs in a manner distinguishable from the line graph.
Graph display device. The graph display unit draws the representative data on the line graph with a predetermined marker so that it can be identified as a line.
The graph display device according to claim 1. The graph display unit switches whether or not to draw so that the representative data can be identified on the line graph in accordance with a user operation instruction.
The graph display device according to claim 2. The graph display unit draws the representative data so as to be identified on the line graph for a predetermined period for each predetermined period.
The graph display device according to claim 2. The graph display unit displays the variation information on the line graph in a manner that a background appears to be transparent.
The graph display apparatus of any one of Claim 1 to 4. The representative data is either an average value or a median value of the data for each predetermined period.
The graph display device according to claim 1. The variation information includes at least one of a maximum value, a minimum value, and a variance of the data for each predetermined period.
The graph display device according to claim 1. A method controlled by a processor, comprising:
Based on data collected from equipment arranged in the plant, representative data generation step for generating representative data representing the data for each predetermined period;
A variation information generating step for generating variation information of the data used when generating the representative data;
A graph display step for displaying a line graph in which the representative data is arranged in time series;
A selection detection step of detecting a selection operation for any part on the line graph;
Including
The graph display step displays variation information corresponding to the representative data in a period to which the detected location belongs in a manner distinguishable from the line graph.
Graph display method.