JP6553547B2 - Data display device, data display method, and program - Google Patents

Description

  The present invention relates to a technology for displaying data based on an operation by a user.

  An era in which a variety of data updated every day can be acted while being routinely referred to by a mobile terminal such as a smartphone is coming. In order to intuitively understand the characteristics of data, information visualization methods such as bar graphs and line graphs, and tree maps and map displays have been proposed and put into practical use.

  The appropriateness of graphs in expressing data is influenced by the nature of the data (Non-patent Document 1). For example, among various visualization methods, bar graphs and line graphs are most often used in visualizing data. The bar graph is suitable for comparing data of independent measurement points from a common viewpoint. On the other hand, the line graph is suitable for expressing continuous data such as time-series data. For example, a bar chart is suitable for comparing today's prices at nearby gas stations. On the other hand, the transition of the price of a certain gas station during the month is considered to be expressed as a line graph. Systems for visualizing data based on the nature of the data and the viewpoint / interest of the person viewing the data have also been proposed (Non-Patent Documents 2 and 3).

J. Mackinlay: Automating the design of graphical presentations of relational information, ACM Transactions on Graphics, Volume 5 Issue 2, April 1986, Pages 110-141. Kato Tsuneaki, Matsushita Mitsunori: Multimodal dialog processing for exploratory data analysis using graphs, Transactions of the Institute of Electronics, Information and Communication Engineers. D-II, Information systems, II-Pattern processing J87-D-II (5), 1142-1152, 2004. Mitsunori Matsushita: InTREND: A Data Analysis Support System Focusing on Users' Search and Reflections, IPSJ Transactions Journal, Vol.49, No.7, pp.2456-2467 (2008).

  However, the above-mentioned appropriateness is designed with the task of carefully analyzing in front of printed paper, desktop PC, etc. from the beginning. In order to effectively use data in various everyday situations, a simple interaction method for quickly grasping the characteristics of the data is required.

  As an example, when you get on a car, gasoline is reduced, so consider the case where you want to check information on nearby gas stations with a smartphone app in a situation where you want to compare the prices of nearby gas stations and put in gasoline.

  Based on the existing design guidelines, the expression and operation of the smartphone app is as follows. First, the smartphone app collects price information for nearby gas stations based on the user's location information and displays it in a bar graph. When the user also wants to know the past transition, when the menu operation or the name of the stand is touched, the transition of the price according to the past one month is displayed as a line graph.

  However, this design has problems in (1) expression and (2) operation in the following points.

(1) Expression A line graph is suitable as a data expression of price transition. However, when viewed from the viewpoint of the transition from the bar graph representation of the current price, not only is the graph type changed, but the meaning of the vertical axis and the horizontal axis of the graph changes, so this is not necessarily an intuitive expression.

(2) Operation Pointing operation of menus and small buttons has a heavy operation load.

  In a daily situation such as moving, unless there is a desire for clear information, often unintuitive expressions and complicated operations are avoided. Information on the past price transition is useful information that will serve as a guide for future gas station selection, but it is not always necessary information when selecting a gas station. With such expressions and operations, it is likely that many users who are looking for a gas station do not check past price changes.

  In addition, it is known that people often utilize information acquired later rather than purpose-oriented (Reference: Catherine C. Marshall, Sara Bly: Saving and used encountered information: implications for electronic periodicals, Proceedings of The SIGCHI Conference on Human Factors in Computing Systems (CHI'05), pp. 111-120, 2005.). In order to support the use of such information, it is necessary to push the information to the user or to provide a mechanism that allows the user to browse freely (in addition) without having a clear desire for the information.

  The present invention has been made in view of the above points, and solves the problems of the above expression and operation, and enables a user to freely browse past data while looking at the current data. Intended to be provided.

According to the disclosed technology, a storage unit that stores data to be displayed;
Display means for displaying data of a certain time position read out from the storage unit as a bar graph;
Based on a predetermined operation by the user on the screen on which the bar graph is displayed, each bar of the bar graph data of the time position is maintained at a vertical axis and a horizontal axis of the bar graph, and a time different from the time position And a control means for switching to a bar of position data.

  According to the disclosed technology, a technology is provided that enables a user to freely browse past data while viewing current data. As a result, the user can refer to past data on a daily basis and adjust the behavior based on the transition of data not only now but also so far. For example, if the past prices of gas stations are routinely referenced, it can be understood how the price of each gas station changes in a pattern. This is considered to be an effective memory for appropriately selecting a gas station even when there is no room for launching an application.

It is a figure which shows the example of an initial screen. It is a figure for demonstrating the transition method to the past. It is a figure for demonstrating the display method of the past data based on a rotation system. It is a figure which shows a rotation holder. It is a figure which shows the example 2 of a display. It is a block diagram of the data display apparatus 100 in embodiment of this invention. It is a figure which shows the hardware structural example of the data display apparatus 100 in embodiment of this invention. It is a figure which shows the example of visualization of air pollutant suction amount.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment described below is merely an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

(Overview of the embodiment)
First, an outline of the present embodiment will be described. In the present embodiment, it is possible to intuitively and seamlessly browse past data by flick (or swipe, hereinafter the same) operation by the user on the data display device 100 described later.

  Specifically, by flicking on the current data represented by the bar graph, the one displayed as the current bar graph is switched to the bar graph of the past data according to the operation amount. The more you flick in a particular direction, the more you go back to past data, and the more you flick in the opposite direction, the more current data is displayed. The operation of flicking anywhere on the screen is possible even without looking at the screen, and the operation load is low.

  In addition, by displaying the past data while maintaining the vertical axis and the horizontal axis of the bar graph, it is possible to confirm the transition of the past data from the increase / decrease animation of the bar graph length. This enables the user to check past data with an intuitive expression and a simple operation when he / she wants to know a little past transition while looking at current data.

  The technology according to the present embodiment is positioned as a bar graph interactive RSVP (Rapid Serial Visual Presentation) technology. RSVP is a visualization method that displays a large amount of information by switching information at high speed and sequentially. Also in the present embodiment, the display is sequentially switched to past information by the user flicking on the screen. At this time, since the viewpoint of the information before and after is maintained, the user can grasp the transition of the information. In this embodiment for a bar graph, in order to maintain the vertical axis and the horizontal axis of the bar graph, each bar on the graph is switched at high speed and sequentially based on flicking, not on the entire screen.

  In the present embodiment, it is assumed that data display device 100 that executes various screen displays described below is a mobile terminal such as a smartphone or tablet that executes an operation by an application (program). The display device 100 is not limited to a mobile terminal such as a smartphone or a tablet. For example, the data display device 100 may be a desktop PC capable of performing an operation such as flicking on a screen.

  In this embodiment, as an example, the price of gasoline at a gas station is described as an example. In this example, it is assumed that the data display device 100 can access the database 200 storing the price of gasoline for each gas station via the network to obtain desired data. Hereinafter, the present embodiment will be described more specifically.

(Display example 1)
First, Display Example 1 in the present embodiment will be described. When the user starts the application on the data display device 100 to compare the gasoline prices of the gas station on the day, the prices of the gas stations A to F are displayed on the screen of the data display device 100 as shown in FIG. Is displayed as a bar graph.

  The user flicks or swipes up anywhere on the screen to change the display of the bar graph to the display of each gas station price at a certain point in the past rather than now. Here, “flick” is an operation to flip the finger touching the screen. "Swipe" is an operation of sliding the finger touching the screen.

  For example, from the current display shown in FIG. 2 (a), flicking the screen a little upward changes the display of the bar graph from the previous day (FIG. 2 (b)) to the previous day (FIG. 2 (c)) Also, conversely, when flicking downward, the previous day, the day and the present will be returned, and if forecast data after tomorrow exists, flicking further upward will predict the price of the day after tomorrow The value may be displayed as a bar graph.

  In the above example, the flick in the upward direction goes back to the past, and the flick in the downward direction proceeds to the time advancing method, but the upward and downward directions may be reversed. In other words, it is possible to go back to the past by flicking downward and to advance to a method of advancing time by flicking upward. In addition, flicking to the right may go back to the past, flicking to the left may advance to the time advancing method, or flicking to the left may go back to the past, flicking to the right may advance to time You may go ahead.

  An example of the method for realizing the above display will be described with reference to FIG. In the present embodiment, as shown in FIG. 3, a mental model is employed in which individual bars rotate like a rotating holder such as a business card to display different pieces of information one after another. As shown in FIG. 3, a bar indicating the daily price of gasoline is placed in time series on the rotating holder. The flick (swipe) operation is an operation of rotating the rotary holder in the forward or reverse direction. By flicking the screen up and down (or left and right), the rotating holder turns and bar graphs of front and back (eg the previous day and the next day) are displayed one after another.

  In the example of the gasoline price at the gas station shown in FIG. 3, the data display device 100 has individual rotating holders from the stand A to the stand F, respectively. A total of six rotation holders rotate at the same time based on the user's flick operation, and display, for example, past date bars.

  An example of the rotating holder will be described in more detail with reference to FIG. As shown in FIG. 4A, the upper left of the screen is defined as the origin, the right direction is defined as the x axis, the lower direction is defined as the y axis, and the depth direction is defined as the z axis. In this coordinate system, the arrangement of the bars on the rotary holder in the display example 1 is as shown in FIG. In FIG. 4 (b), the y-axis line represents the cross section of the yx plane (i.e. screen) with z = 0.

  In the display example 1, the bars displayed on the screen are those of a specific date, but it is sufficient to display on the screen only the part near z = 0 among the bars arranged in the depth direction . For example, the bar closest to z = 0 is displayed on the screen (example: bar shown by A in FIG. 4B).

(Display example 2)
Although the bars displayed on the screen in the display example 1 are of specific dates, this is an example, and display methods other than this may be adopted. For example, as shown in FIG. 5 (Display Example 2), date bars before and after a specific date may be displayed above and below the specific date bar. In the example of FIG. 5, the bar of March 8 is displayed, the bar of March 9 is displayed above the bar of March 8, and the bar of March 7 is a bar of March 8 Is displayed below.

  Display example 2 shown in FIG. 5 can be realized by expanding the drawing range of the bar in the z-axis direction. That is, for example, the rod closest to z = 0, the rod closest to the second, and the rod closest to the third (including the case where the second proximity is the same) are displayed on the screen as a drawing target.

  As in the display example 2, displaying the prices of dates before and after a specific date as bars makes it easier to understand the transition before and after. However, if it is expressed in the same color depth, it will be difficult to distinguish whether the displayed graph is the one at the time when one wants to see it or the one before and after that. Therefore, the front and rear bars may have effects such as thinning the color and thinning the bar.

  Currently, Android (registered trademark) smartphones can use 3D graphics libraries such as OpenGL (registered trademark). For example, using the perspective effect (far away looks smaller) or fog effect (faraway looks like) of these libraries to make the colors of the front and back groups of bars thinner, make the bars thinner, etc. The effect can be realized.

(Device configuration example, operation example)
FIG. 6 shows a functional configuration example of the data display device 100 in the present embodiment. As shown in FIG. 6, the data display apparatus 100 according to the present embodiment includes an operation / display unit 101 (e.g., a touch panel), a drawing unit 102, a rotating holder updating unit 103, an operation recognition unit 104, and operation amount / time amount conversion. Unit 105 and data acquisition unit 106. In addition, a gas station price database 200 is provided on the network, and the data acquisition unit 106 can access the database 200 to acquire desired data.

  An example of the operation of the data display device 100 including the above functional units will be described below. First, based on the data acquired by the data acquisition unit 106, the drawing unit 102 displays the prices of gasoline at nearby gas stations as shown in FIG. 1 in a bar graph on the operation and display unit 101. Do.

  In this state, when the user flicks or swipes the screen on the operation / display unit 101, the operation recognition unit 104 detects the operation and sends the operation amount to the drawing unit 102 and the operation amount / time amount conversion unit 105. .

  The rotation holder management unit 103 includes a storage unit for storing information on the rotation holder of each rod, and the drawing unit 102 acquires the information on the rotation holder for each rod from the rotation holder management unit 103, and sends the information from the operation recognition unit 104. The rotating holder of each rod is rotated based on the amount of operation that has been made, and the screen is updated.

  On the other hand, the operation amount / time amount conversion unit 105 calculates how much the user moved the time toward the past or the future by the flick operation based on the operation amount, and transmits the amount of moved time to the data acquisition unit 106. send. The data acquisition unit 106 acquires past (or future) gas station price data from the gas station price database 200 based on the amount of time operated by the user, and sends it to the rotating holder management unit 103. The rotation holder management unit 103 changes the data assigned to the rotation holder based on the data sent from the data acquisition unit 103.

  In this operation example, the drawing is updated as soon as the user's operation is recognized. This is because when the database is sequentially accessed based on the user's flick operation, the display cannot be converted quickly and smoothly. The data acquisition unit 106 reads price data of a predetermined amount (for example, for 30 days) from the database 200, assigns it to the rotary holder, stores it in the storage unit, and the drawing unit 102 responds to the operation amount. The rotating holder to which the price data has already been assigned is acquired, rotated, and displayed.

  On the other hand, since the date is moved by the operation of the user, the rotating holder managing unit 103 updates the assignment to the rotating holder based on the moved date. For example, when the rotation holder is traced back to the past by 5 days by the operation of the user, data of the past 5 days from 30 days is acquired from the price database 200 and newly allocated to the rotation holder. As described above, by pre-allocating data that the user may view by flick operation to the rotary holder in advance, it is possible to always update drawing smoothly and smoothly for the user's operation.

<Hardware configuration>
As described above, the data display apparatus 100 according to the present embodiment is realized by, for example, a smartphone or a tablet equipped with an application, but more generally, the data display apparatus 100 includes one or more This can be realized by causing a computer to execute a program describing the processing contents described in this embodiment. That is, the functions of the data display device 100 are realized by executing a program corresponding to the processing performed by the data display device 100 using hardware resources such as a CPU, a memory, and a hard disk built in the computer. Is possible. In addition, the program can be recorded in a computer readable recording medium (portable memory or the like), and can be stored or distributed. It is also possible to provide the program through a network such as the Internet or electronic mail.

  FIG. 7 is a diagram showing an example of a hardware configuration of the data display device 100 in the present embodiment. The data display device 100 of FIG. 7 includes a drive device 150, an auxiliary storage device 152, a memory device 153, a CPU 154, an interface device 155, a display device 156, an input device 157 and the like mutually connected by a bus B.

  A program for realizing the processing in the data display device 100 is provided by a recording medium 151 such as a CD-ROM or a memory card, for example. When the recording medium 151 storing the program is set in the drive device 150, the program is installed from the recording medium 151 into the auxiliary storage device 152 via the drive device 150. However, the installation of the program does not necessarily have to be performed from the recording medium 151, and may be downloaded from another computer via a network. The auxiliary storage device 152 stores the installed program and also stores necessary files and data.

  The memory device 153 reads the program from the auxiliary storage device 152 and stores it when there is an instruction to start the program. The CPU 154 realizes functions related to the data display device 100 in accordance with a program stored in the memory device 153. The interface device 155 is used as an interface for connecting to the network. The display device 156 displays data and the like. The input device 157 is used to cause the user to input various operation instructions. The display device 156 and the input device 157 may be separate devices, or the display device 156 and the input device 157 may be an integrated device.

(Other display examples)
Although the present invention has been described above with the price display of the gas station as an example, the application of the present invention is not limited to the price display of the gas station. The present invention is basically applicable to time series data in general aggregated by a plurality of points and viewpoints. For example, the present invention can be applied to an application that displays various air pollution amounts of the measurement station closest to the place where the user is present, and displays a past measurement result when the user flicks it. Data relating to the amount of air pollutants a user inhales every day can also be used as a data source.

  Air Pollutant Suction Volume Visualization System (References: Shirai Yoshinari, Kishino Yasue, Natani Ta, Yanagisawa Yutaka: Air Pollutant Suction Volume Measurement System Using Cloud Database, Multimedia, Distributed, Cooperative and Mobile (DICOMO 2015) Symposium, pp In 786-792, 2015), as shown in FIG. 8, the amount of air pollutants inhaled by the user is visualized as a bar graph, but the present invention allows flicking of the user in such an application. Based on this, it can also be used to display past suction volumes.

  Further, in the display examples described so far, points and viewpoints are arranged on the vertical axis of the screen, and the horizontal axis is a value measured based on the points and viewpoints, but the vertical axis and the horizontal axis may be interchanged. Absent. However, in that case, it is preferable to assign the left and right directions instead of the up and down directions to flick.

  The present invention is not limited to browsing past data. For example, in combination with an engine that predicts the future based on past data, it is possible to display future data prediction values from the present by flicking.

  In the display examples 1 and 2, the rotation holder is rotated by a flick or swipe operation, but a rotation operation by a tap may be used. For example, an operation may be employed such that tapping anywhere on the upper half of the screen of the data display device 100 causes retrogression by one day toward the past, and tapping somewhere on the lower half advances one day toward the current direction. In addition, an operation of moving toward the past or the present continuously by long tapping may be used. The operation of tapping a small button has a high operation load, but the operation load can be reduced by using the entire screen area as a tap area.

(Summary of the embodiment)
As described above, according to the present embodiment, according to the present embodiment, a storage unit for storing data to be displayed, a display unit for displaying data of a certain time position read from the storage unit as a bar graph, and the bar graph Providing a control means for switching each bar of the bar graph of the data of the time position to a bar of data of a time position different from the time position based on a predetermined operation by the user on the screen on which is displayed. A featured data display device is provided.

  The operation / display unit 101 described in the embodiment is an example of the display unit. The drawing unit 102, the rotation holder update unit 103, and the operation recognition unit are examples of the above-described control means.

  The storage unit stores, for example, data to be displayed as a rotary holder in which data of rods having different time positions are arranged in a rotational direction, and the control unit performs the rotary holder based on the predetermined operation. By rotating it, the data at the different time positions is switched to a bar.

  The predetermined operation is, for example, flick, swipe, or tap.

  Although the present embodiment has been described above, the present invention is not limited to such a specific embodiment, and various modifications and changes may be made within the scope of the subject matter of the present invention described in the claims. It is possible.

100 data display device 101 operation / display unit 102 drawing unit 103 rotating holder update unit 104 operation recognition unit 105 operation amount / time amount conversion unit 106 data acquisition unit 150 drive device 151 recording medium 152 auxiliary storage device 153 memory device 154 CPU
155 Interface device 156 Display device 157 Input device 200 Gas station price database

Claims (7)

A storage unit for storing data to be displayed;
Display means for displaying data of a certain time position read out from the storage unit as a bar graph;
Based on a predetermined operation by the user on the screen on which the bar graph is displayed, each bar of the bar graph data of the time position is maintained at a vertical axis and a horizontal axis of the bar graph, and a time different from the time position And control means for switching to a bar of position data. The storage unit stores data to be displayed, as a rotating holder in which data of bars with different time positions are arranged in the rotating direction,
The data display device according to claim 1, wherein the control means switches the data of the different time position to a bar by rotating the rotary holder based on the predetermined operation. The data display device according to claim 1, wherein the predetermined operation is a flick, a swipe, or a tap. A data display method executed by a data display device including a storage unit storing data to be displayed, the data display method comprising:
Displaying data of a certain time position read out from the storage unit as a bar graph;
Based on a predetermined operation by the user on the screen on which the bar graph is displayed, each bar of the bar graph data of the time position is maintained at a vertical axis and a horizontal axis of the bar graph, and a time different from the time position A control step of switching to a position data bar. The storage unit stores data to be displayed, as a rotating holder in which data of bars with different time positions are arranged in the rotating direction,
5. The data display device according to claim 4, wherein the data display device switches the data of the different time position to a bar by rotating the rotary holder based on the predetermined operation. Data display method. The data display method according to claim 4 or 5, wherein the predetermined operation is a flick, a swipe, or a tap.   The program for functioning a computer as each means of the data display apparatus of any one of Claim 1 thru | or 3.