Time series data display device

By calculating the frequency of time series data and displaying it in color or visual effects, the problem of difficult data distribution in industrial machinery operation is solved, and effective visualization and change point recognition are achieved under multi-modal and long-term data deviations are achieved.

CN112115195BActive Publication Date: 2024-12-31FANUC LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202010562193.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-06-19
Filing Date
2020-06-18
Publication Date
2024-12-31
Estimated Expiration
2040-06-18

AI Technical Summary

Technical Problem

In the operation monitoring of industrial machinery, it is difficult for the prior art to effectively grasp the distribution of time series data, especially when there are deviations in data mode switching and long-term acquisition, which makes it difficult to identify distribution conditions and change points in the line chart display.

Method used

By calculating the frequency of time series data and displaying it in different colors or visual effects, a brief and detailed data display is achieved, helping workers to visualize data behavior in multi-mode and properly grasp the changes.

Benefits of technology

The data distribution visualization in multi-mode and long-term data deviation situations is realized, which improves the operator's ability to grasp time series data and avoids the problem of hidden deviation values.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN112115195B_ABST
    Figure CN112115195B_ABST
Patent Text Reader

Abstract

The present invention provides a time series data display device. The time series data display device includes a display unit that outputs display data related to time series data, and the display unit includes: a brief display production unit that produces brief display data for briefly displaying a brief trend of the time series data; and a detailed display production unit that produces detailed display data for detailed display of detailed individual values ​​of the time series data. The brief display displays the frequency or density of individual data constituting the time series data at each position on a drawing plane of the time series data through a visual effect corresponding to the frequency or density.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a time series data display device, and more particularly to a time series data display device capable of easily grasping the distribution of time series data detected in industrial machinery. Background Art

[0002] In a manufacturing site such as a factory, a plurality of industrial machines such as processing machines and machine tools are installed and operated. In the manufacturing site, data related to the operation of the plurality of industrial machines is collected and analyzed. Thus, the operating conditions of the various industrial machines are monitored (for example, Japanese Patent Publication No. 2004-198148).

[0003] The data related to the operation of industrial machinery includes static data that changes according to the settings, such as the maximum speed of the axis and the time constant. In addition, the data related to the operation of industrial machinery includes time series data that changes over time, such as the movement speed of the axis and the current value. When monitoring the operating status of industrial machinery, the focus is on analyzing the changes in time series data.

[0004] When analyzing time series data, sometimes the time series data is visualized and displayed on a screen or the like so that the operator can understand it simply and intuitively. When visualizing the time series data, the time series data can be displayed as a line for each data item. In addition, sometimes the operator is asked to select multiple data items as needed, and the time series data of the selected data items are displayed in an overlapping manner.

[0005] The time series data acquired from industrial machinery may be acquired over a long period of time. In addition, the time series data may be acquired irregularly (there may be data loss in time, or the timing of data acquisition may be deviated in time, etc.). In addition, the time series data acquired when the industrial machinery is in operation may be separated into data acquired in multiple different modes.

[0006] Fig.10 An example of time series data obtained in multiple different modes of an industrial machine is shown. The industrial machine shown here repeatedly switches between two operation modes during operation. In addition, the industrial machine is controlled by a voltage value V1 in the first operation mode and by a voltage value V2 in the second operation mode. In this case, Fig.10 As shown in the example, the voltage values ​​near the two voltage values ​​V1 and V2 are detected alternately and repeatedly. These detected voltage values ​​are acquired as time series data. When such data is displayed in a line graph, which is a general display method for time series data, as shown in FIG. Fig.10As shown in the figure below, it becomes a graph in which points representing voltage values ​​near two voltage values ​​V1 and V2 are connected by multiple lines. Therefore, it is difficult to understand the distribution of voltage values ​​near each voltage value V1 and V2. In addition, there is a problem that deviation values ​​are hidden in the lines and cannot be recognized on the screen. In addition, when time series data with temporal deviations in data acquired over a long period of time is displayed in a line graph, there is a problem that it is difficult to understand the change points of data for each action mode.

[0007] Furthermore, when a plurality of time series data are displayed in an overlapping manner, the lines representing changes in the respective time series data overlap, which may cause a problem in that it is difficult to grasp the overall distribution.

[0008] In view of this, a data visualization method that allows workers at a manufacturing site to easily understand the distribution of time-series data values ​​is desired. Summary of the invention

[0009] A time series data display device according to one embodiment of the present invention solves the above-mentioned problem by calculating the frequency of detection values ​​of time series data and displaying the frequencies in different colors.

[0010] Furthermore, one embodiment of the present invention is a time series data display device for displaying time series data, comprising a display unit that outputs display data related to the time series data, the display unit comprising: a brief display production unit that produces brief display data for briefly displaying a brief trend of the time series data; and a detailed display production unit that produces detailed display data for detailed display of detailed individual values ​​of the time series data, the brief display showing the frequency or density of individual data constituting the time series data at each position on a drawing plane of the time series data through a visual effect corresponding to the frequency or density.

[0011] According to one embodiment of the present invention, even if the data of the observation object is separated into data acquired in a plurality of modes, the behavior of the observation object can be visualized. In addition, even if the data with temporal deviation is acquired over a long period of time, the change point of the data can be appropriately grasped. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The purpose and features of the present invention can be clearly understood from the following description of the embodiments with reference to the accompanying drawings. In these drawings:

[0013] Figure 1 This is a schematic hardware configuration diagram of a time series data display device according to one embodiment.

[0014] Figure 2 This is a schematic functional block diagram of the time series data display device according to the first embodiment.

[0015] Figure 3Shows examples of brief display and detailed display.

[0016] Figure 4 A schematic functional block diagram showing a time series data display device according to a second embodiment.

[0017] Figure 5 This shows an example of a collection display.

[0018] Figure 6 This shows another example of aggregate display.

[0019] Figure 7 A diagram showing a schematic hardware configuration of a time-series data display device according to a third embodiment.

[0020] Figure 8 This is a schematic functional block diagram showing a time series data display device according to a third embodiment.

[0021] Fig. 9 This shows an example of AR display.

[0022] Fig.10 This is a display example of time series data according to the prior art. DETAILED DESCRIPTION

[0023] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic hardware structure diagram of a time series data display device according to one embodiment of the present invention. The time series data display device 1 can be installed on a control device for controlling an industrial machine, for example. In addition, the time series data display device 1 can be installed on a personal computer arranged in parallel with an industrial machine equipped with a control device, for example. In addition, the time series data display device 1 can be installed as a computer such as an edge computer, a fog computer, a cloud server, etc. connected to the control device via a wired / wireless network. In this embodiment, an example of installing the time series data display device 1 on a personal computer arranged in parallel with an industrial machine 2 is shown.

[0025] The CPU (Central Processing Unit) 11 of the time series data display device 1 of this embodiment is a processor that controls the time series data display device 1 as a whole. The CPU 11 reads out the system program stored in the ROM (Read Only Memory) 12 via the bus 20. The CPU 11 controls the entire time series data display device 1 according to the system program. The RAM (Random Access Memory) 13 temporarily stores temporary calculation data, display data, and various data input from the outside.

[0026] The non-volatile memory 14 is composed of, for example, a memory backed up by a battery not shown, an FDD (Flippy Disk Drive), an HDD (Hard Disk Drive), an SSD (Solid State Drive), etc. Even if the power of the time series data display device 1 is disconnected, the non-volatile memory 14 maintains the storage state. The NC (Numerical Control) program read from an external device via an interface not shown is stored in the non-volatile memory 14. The NC program input via the input device 71, the time series data obtained from industrial machinery, etc., are stored in the non-volatile memory 14. The NC program and various data stored in the non-volatile memory 14 can be loaded into the RAM 13 when executed / used. In addition, various system programs such as well-known analysis programs are pre-written in the ROM 12.

[0027] The display device 70 outputs and displays various data read into the memory, data obtained as a result of executing a program, data acquired from industrial machinery, etc., via the interface 17. The input device 71 includes a keyboard, a command device, a voice input device, a gesture input device, etc. The input device 71 receives commands based on the operation of the operator and data transmitted from other external devices, and transmits them to the CPU 11 via the interface 18.

[0028] The time series data display device 1 is connected to the industrial machine 2 via the interface 19. The time series data display device 1 obtains the position, speed, and acceleration of the axis of the industrial machine 2. The time series data display device 1 obtains the current value and voltage value of the motor etc. of the industrial machine 2. The time series data display device 1 obtains the detection value etc. detected by the sensor installed on the industrial machine 2. The time series data display device 1 can store the obtained data in the non-volatile memory 14 as a sequence of data associated with time etc., that is, time series data.

[0029] Figure 2 This is a schematic functional block diagram of the time-series data display device 1 according to the first embodiment of the present invention. Figure 2 The individual functions of the functional blocks shown are implemented by Figure 1 This is achieved by the CPU 11 executing a system program and controlling the operation of each part of the time-series data display device 1 .

[0030] The time-series data display device 1 includes a data acquisition unit 100 and a display unit 110. The nonvolatile memory 14 of the time-series data display device 1 also includes an acquired data storage unit 200, which is an area for storing data acquired by the data acquisition unit 100.

[0031] The CPU 11 executes the system program read from the ROM 12, and mainly performs input and output processing of the CPU 11 using the RAM 13, the nonvolatile memory 14, and the interface 19, thereby realizing the data acquisition unit 100. The data acquisition unit 100 acquires various data detected in the industrial machine 2 and stores them in the acquired data storage unit 200. For example, the data acquisition unit 100 acquires time series data of the position, speed, and acceleration of the axis acquired from the sensor provided in the industrial machine 2. The data acquisition unit 100 acquires time series data of the current value, voltage value, and torque value of the motor. The data acquisition unit 100 acquires time series data such as temperature data, sound data, dynamic image data, hardness data, and humidity data of each part. The data acquisition unit 100 stores these data in the acquired data storage unit 200 as acquired data. The data acquisition unit 100 may also acquire data from other devices via an external device not shown or a wired / wireless network. In addition, the data acquisition unit 100 may also acquire data output by a sensor data preprocessing device or a machine learning device not shown.

[0032] The CPU 11 executes the system program read from the ROM 12, and mainly performs the calculation processing of the CPU 11 using the RAM 13 and the non-volatile memory 14, and the input and output processing using the interfaces 17 and 18, thereby realizing the display unit 110. The display unit 110 performs statistical analysis on the acquired data stored in the acquired data storage unit 200. The display unit 110 creates display data related to the analysis result, and displays the display data on the display device 70. The display unit 110 includes a brief display creation unit 112 that creates brief display data for briefly displaying a brief trend of the acquired data. The brief trend is, for example, a general trend of the frequency distribution represented by the acquired data. In addition, the brief display is a display method for allowing the operator to grasp the brief trend. The display unit 110 includes a detailed display creation unit 114 that creates detailed display data for displaying detailed individual values ​​of the acquired data in detail. The detailed individual values ​​represent the individual values ​​of the acquired data, and the detailed display refers to a display method for displaying these individual values ​​so that the operator can grasp them. The display unit 110 switches between displaying the brief display data created by the brief display creation unit 112 and the detailed display data created by the detailed display creation unit 114 in accordance with the operator's operation from the input device 71 and environmental conditions such as the screen continuous display time.

[0033] The summary display creation unit 112 calculates the number of individual data constituting the time series data near each position in the drawing plane (data value-time plane) of the time series data as a frequency. The summary display creation unit 112 creates summary display data based on the calculated frequency. For example, the summary display creation unit 112 calculates the predetermined time t i The predetermined value x in j The frequency f ij Frequency f ij Indicates that the i -Δt) to (t i +Δt) in the range from (x j -Δx) to (x j +Δx). Δt is a predetermined time width set in advance, and Δx is a predetermined data value width set in advance.

[0034] On the other hand, the detailed display making unit 114 makes detailed display data for displaying in detail the individual data constituting the time series data so that the operator can grasp the time series data contained in the acquired data. As an example of detailed display data, an example of a scatter plot related to each data constituting the time series data can be cited. As another example of detailed display data, an example of a list display related to each data constituting the time series data can be cited. The detailed display making unit 114 can make detailed display data in any form as long as it is a form that can grasp the each data constituting the time series data. In addition, the detailed display making unit 114 can also make detailed display data about data within a predetermined range. For example, when the operator operates the screen of the input device 71 that performs a brief display and instructs a detailed display of a predetermined range within the brief display, the detailed display making unit 114 makes detailed display data for enlarging and displaying in detail the instructed range.

[0035] Figure 3 An example of a brief display displayed based on the brief display data created by the brief display creating unit 112 and an example of a detailed display displayed based on the detailed display data created by the detailed display creating unit 114 is shown. Figure 3 The schematic display shown on the upper side of the diagram indicates that the schematic display creation unit 112 displays the calculated frequency f in a graph. ij For example. Figure 3 The detailed display shown below shows an example in which the detailed display creation unit 114 displays each data value constituting the time series data in a scatter plot. Figure 3In the frequency graph shown, the frequency of each data value at each moment is displayed with different colors or different brightness (boxes and shaded boxes in the figure) according to the magnitude of the frequency. In addition, when the frequency or density exceeds a predetermined threshold value, it can be displayed with a special visual effect (predetermined color, flashing display, inverted display, etc.) to grasp the main idea. In this way, time series data is expressed by using visual effects such as colors corresponding to the frequencies of each data value at each moment. Fig.10 Compared with the case of displaying with a line graph as shown, it is possible to understand at a glance that the data value is obtained in multiple different modes. As another example of visual effects, the display of a character string or an icon by changing the type, size, font, animation, etc. is listed. In addition, Figure 3 The isolated box in the center of the frequency graph indicates that there are deviation values ​​that do not belong to any mode. Fig.10 Compared with the line graph shown above, there is no situation where deviation values ​​are hidden in the line and cannot be understood.

[0036] When displaying the above-mentioned time series data in a line graph, a problem arises. Specifically, in the field of industrial machinery, in particular, time series data of a predetermined physical quantity detected by a sensor on a machine is processed. Therefore, due to setting errors, configuration of the production system, limitations of sensor specifications, etc., there is a tendency that the time series data is easily separated into data obtained in multiple modes different from each other. Therefore, the time series data display device 1 of the present embodiment plays a significant effect when displaying time series data obtained particularly from industrial machinery.

[0037] In the time series data display device 1 of the above-mentioned embodiment, a brief display using frequency is provided to the operator for each data constituting the time series data. Therefore, when the data value is separated into a plurality of modes, the operator can grasp the separation status of each mode in a visualized state. In addition, even if the data acquired over a long period of time is deviated in time, the position where the frequency changes can be appropriately grasped as a change point.

[0038] As a modified example of the time series data display apparatus 1 according to the present embodiment, the summary display creation unit 112 calculates the time period t i The predetermined value x j Other statistical values ​​of the distribution of nearby data are used to replace the predetermined time t i The predetermined value x j The frequency f ij , and create summary display data based on the calculated statistical value. For example, the summary display creation unit 112 may also calculate the predetermined time t i , the predetermined value xj The data in the image has a probability density associated with it, and a distribution diagram of the calculated probability density is created as a summary display data.

[0039] As another variation of the time series data display device 1 of this embodiment, the brief display creation unit 112 may also be displayed using a three-dimensional bar graph, etc., instead of displaying the brief display using different colors or different brightness. When displaying in such a display format, although the three-dimensional display processing costs, it is possible to provide the operator with a distribution diagram that shows the difference in frequency and density in detail at the level of a bar graph.

[0040] As another variation of the time series data display device 1 of the present embodiment, the brief display creation unit 112 may normalize the time series data when creating the brief display data so that the minimum value is 0 and the maximum value is 1. In this case, the normalized time series data is displayed by frequency and density. In addition, when normalizing the time series data, in the calculation of frequency and density, the frequency and density of each range may be calculated based on the range of data values ​​divided into the ranges of 0 to 0.2, 0.2 to 0.4, ..., 0.8 to 1.0.

[0041] In addition, the display methods of the above-mentioned summary displays may be implemented separately and switched appropriately according to the input from the input device 71 by the operator.

[0042] Figure 4 This is a schematic functional block diagram of a time-series data display device 1 according to a second embodiment of the present invention. Figure 4 The functions of the functional blocks shown are implemented by Figure 1 This is achieved by the CPU 11 included in the time series data display device 1 executing a system program to control the operation of each part of the time series data display device 1 .

[0043] The time series data display device 1 of the present embodiment further includes a collection display creation unit 116 in addition to the components described in the first embodiment.

[0044] The aggregate display creation unit 116 creates aggregate display data for aggregate display for aggregating the distribution trends of the respective time series data on one display for the plurality of time series data included in the acquired data. As an example of aggregate display, a display method that can grasp the characteristic data values ​​(data values ​​with the highest frequency or density) of the respective time series data at each moment on one display can be considered. As another example, a display method that can grasp the average value and the median value of the values ​​of the respective time series data at each moment on one display can be considered.

[0045] Figure 5An example of a summary display based on summary display data related to a plurality of time-series data created by the summary display creating unit 112 and a collection display based on collection display data created by the collection display creating unit 116 for the plurality of time-series data is shown. Figure 5 The three simple displays shown on the upper side of are examples in which the simple display creation unit 112 normalizes the data values ​​of each time series data so that they take values ​​of 0.0 to 1.0 and displays the frequency of each data in a graph. Figure 5 The aggregate display shown below shows an example of displaying the data value with high frequency in different colors at each time for each time series data. For example, for time series data A, at time 0 to t 1 Most of the data values ​​are in the range of 0.0 to 0.2. 1 ~t 2 So far, most of the data values ​​are in the range of 0.2 to 0.4. Therefore, in the aggregate display, the colors representing 0 to 0.2 are used (in Figure 5 The white box in the middle shows the time series data A from time 0 to t 1 range, to indicate the color of 0.2 to 0.4 (in Figure 5 The shaded box with a downward slash in the middle shows the time t of the time series data A. 1 ~t 2 With this display, the time changes of multiple time series data can be displayed in one graph. In addition, unlike the case of displaying with a line graph, the display of each time series data does not overlap, so it is easy to grasp the distribution of the overall time series data. Furthermore, it is possible to grasp at a glance where the distribution of each time series data changes, and to confirm the time relationship of the change point of each time series data.

[0046] In addition, Figure 5 In the example, the time-varying trends between time series data A and time series data C are very similar. In this case, for example, Figure 6 As shown, the aggregate display creation unit 116 may create aggregate display data in which time series data having similar transitions in frequency distribution are displayed side by side.

[0047] In addition, when performing an aggregate display, when the value of the highest frequency or highest density data of each time series data at each moment exceeds a predetermined threshold value determined in advance, it can also be displayed through special visual effects (predetermined color, flashing display, reverse display, etc.) so that the main idea can be grasped.

[0048] In the field of industrial machinery, it is often necessary to comprehensively judge the operating status of the industrial machinery based on the values ​​of multiple time series data detected by multiple sensors. The time series data display device of this embodiment can provide the distribution of the frequency and other data values ​​of the time series data obtained from multiple sensors on one display. Therefore, the time series data display device of this embodiment plays a significant role in the display of time series data obtained from industrial machinery. In addition, the time series data can also be one or more sensor data obtained from the industrial machinery via a communication network.

[0049] Figure 7 This is a schematic hardware structure diagram of the time series data display device 1 according to the third embodiment of the present invention. The time series data display device 1 of this embodiment performs input and output for displaying data with a known mobile terminal 75 with a camera carried by an operator. In addition, the time series data display device 1 receives input from the operator through the mobile terminal 75 with a camera. The mobile terminal 75 with a camera can be configured as a so-called tablet terminal or a slate terminal, for example. In addition, the mobile terminal 75 with a camera can also be configured as an HMD (Head Mount Display), for example. The mobile terminal 75 with a camera has, for example, a liquid crystal display as a display device, and also has a keyboard or a touch panel or a touch pad as an input device.

[0050] The mobile terminal with camera 75 is provided with a camera or other photographing device. The mobile terminal with camera 75 has a function of acquiring an actual image photographed by the camera and displaying the image on a display device. In addition, the mobile terminal with camera 75 has a function of sending information related to the graphic or the coordinate position of the graphic in the image to the time series data display device 1 when a predetermined graphic (such as a two-dimensional code, etc.) is detected in the actual image photographed by the camera. On the other hand, the mobile terminal with camera 75 can overlap the image sent from the time series data display device 1 via the interface 21 with the actual image photographed by the camera at a predetermined position on the display device and display them. The predetermined position on the display device where the image sent from the mobile terminal with camera 75 is displayed may be a fixed position on the display device set on the time series data display device 1 or the mobile terminal with camera 75. Alternatively, the predetermined position on the display device where the image sent from the mobile terminal with camera 75 is displayed may also be a position where a predetermined graphic (such as a two-dimensional code, etc.) detected from the actual image photographed by the camera is detected. The function of superimposing and displaying a predetermined image on an image of the real world of the camera-equipped mobile terminal 75 is known as AR (Augmented Reality) technology, and therefore a detailed description thereof is omitted in this specification.

[0051] Figure 8 This is a schematic functional block diagram of a time-series data display device 1 according to a third embodiment of the present invention. Figure 8 The functions of the functional blocks shown are implemented by Figure 7 This is achieved by the CPU 11 included in the time-series data display device 1 executing a system program to control the operation of each unit of the time-series data display device 1 .

[0052] The time series data display device 1 of the present embodiment further includes an AR display production unit 118 for producing AR display data for displaying at least one of the brief display data and the aggregate display data in an overlapping manner with the image captured by the camera on the mobile terminal with camera 75. The AR display production unit 118 instructs the brief display production unit 112 or the aggregate display production unit 116 to produce brief display data or aggregate display data for the time series data associated with a predetermined graphic sent from the mobile terminal with camera 75. The AR display production unit 118 produces AR display data for displaying the produced brief display data or aggregate display data in an overlapping manner with the position of the graphic detected from the image captured by the camera, and sends the AR display data to the mobile terminal with camera 75.

[0053] Fig. 9 An example in which the time series data display device 1 of the present embodiment is applied to an operator to perform an inspection operation of an industrial machine 2 is shown. Fig. 9 In the embodiment, the time series data display device 1 is connected to a plurality of industrial machines 2 to be inspected via a wired network. The time series data display device 1 can obtain time series data related to the operation of each industrial machine 2. In addition, a label printed with a two-dimensional code is attached to each industrial machine 2. The two-dimensional code is obtained by encoding a number that uniquely identifies the industrial machine 2 and a type of time series data that the operator should refer to during the inspection. In addition, the operator carries a mobile terminal 75 with a camera that is connected to the time series data display device 1 via a wireless network.

[0054] exist Fig. 9In the situation shown, the operator stands in front of each industrial machine 2 during the inspection, and points the camera of the mobile terminal with camera 75 toward the industrial machine 2, and displays the image of the industrial machine 2 and the two-dimensional barcode captured on the display device. When the two-dimensional barcode is detected in the image captured by the camera, the mobile terminal with camera 75 analyzes the two-dimensional barcode and decodes the identification number of the industrial machine 2 and the type of time series data to be referenced, and sends it to the time series data display device 1. The time series data display device 1 selects the time series data to be displayed from the data stored in the acquired data storage unit 200 according to the received identification number of the industrial machine 2 and the type of time series data to be referenced. The time series data display device 1 creates the summary display data and the aggregate display data of the selected time series data. The time series data display device 1 creates AR display data for superimposing and displaying on the camera image based on the created summary display data or the aggregate display data, and sends it to the mobile terminal with camera 75. The mobile terminal with camera 75 displays the received AR display data superimposed on the position of the two-dimensional code in the camera image.

[0055] The above-mentioned AR display method does not need to be performed for each industrial machine 2. For example, a two-dimensional code is pasted near each sensor, and when the two-dimensional code and the sensor are photographed by the mobile terminal 75 with a camera, a brief display of the time series data detected by the sensor can be overlapped with the image of the sensor and displayed on the mobile terminal 75 with a camera.

[0056] In addition to inspection work, the present invention can also be applied to the inspection of products conveyed on a conveyor. For example, when multiple products are conveyed on a conveyor, a two-dimensional code is given to a measuring machine that measures the products, and a brief display of the time series data of the measurement results is overlapped with the image of the measuring machine and displayed on the mobile terminal 75 with a camera. In this way, it is also possible to easily grasp the mixing of products other than the multiple products that are supposed to be conveyed on the conveyor (other products that flow in due to defective products and operator errors).

[0057] According to the above embodiment, the operator can view the time series data related to the operating status of the industrial machine 2 through the display of color-coded frequency distribution or through the display of a three-dimensional bar graph, etc., together with the industrial machine 2. As a result, the operator can intuitively understand the operating status of the industrial machine 2 photographed by the camera.

[0058] As mentioned above, although one embodiment of the present invention has been described, the present invention is not limited to the example of the above embodiment, and can be implemented in various forms by adding appropriate changes.

[0059] In the above embodiment, an example of displaying time series data acquired from industrial machinery is shown, but it can also be used to display time series data processed in other technical fields.

Claims

1. A time series data display device, the time series data display device displays time series data, It is characterized in that The time series data display device includes a display unit that outputs display data related to the time series data. The display unit includes: A brief display creation unit that creates brief display data for briefly displaying a brief trend of the time series data; a detailed display creating unit that creates detailed display data for displaying detailed individual values ​​of the time series data in detail; and a collection display creation unit for creating collection display data for collectively displaying the above-mentioned brief display related to a plurality of time series data, The above-mentioned brief display displays the frequency or density of the individual data constituting the above-mentioned time series data at each position on the drawing plane of the above-mentioned time series data by a visual effect corresponding to the frequency or density. The aggregate display displays in parallel the time series data indicating similar changing trends of frequencies or densities among the plurality of time series data.

2. The time series data display device according to claim 1, characterized in that: The time series data is one or more sensor data acquired from the industrial machine via a communication network.

3. The time series data display device according to claim 1 or 2, characterized in that: The display unit further includes an AR display creation unit that creates AR display data for superimposing the schematic display on an actual image.

4. The time series data display device according to claim 1 or 2, characterized in that: The above visual effect is to represent the above frequency by color, brightness or height.

5. The time series data display device according to claim 1 or 2, characterized in that: The detailed display is a scatter plot of the individual data constituting the time series data or a list display of the individual data constituting the time series data.

6. The time series data display device according to claim 1, characterized in that: Regarding the plurality of time series data, the aggregate display visually displays data values ​​with high frequency or density at each time point or an average value or a median value of the data values ​​themselves.

7. The time series data display device according to claim 1 or 6, characterized in that: The above-mentioned aggregate display displays data having a frequency or density exceeding a predetermined threshold value determined in advance by means of other different visual effects.