JPH06243264A - Time base data display device - Google Patents

Abstract

PURPOSE:To display many time bases data and to easily compare them. CONSTITUTION:The size of a virtual cylinder is designated, and the display position of time bases data A is determined (S1 and S2). First data An and An+1 on the time coordinate axis are read in (S3 and S4). Data An and An+1 are normalized in accordance with the size of the cylinder to obtain an and an+1 (S5). Next, points ta,n and ta,n+1 corresponding to times tn and tn+1 on a time coordinate axis LA of data A on the periphery are obtained (S6). The point which is a length an distant from the point ta,n toward the center of the section of the cylinder at the point ta,n+1 is denoted as Pa,n, and the point which is a length an+1 distant from the point ta,n+1 toward that at the point ta,n+1 is denoted as Pa,n+1 (S7). These points are connected to obtain a plane graphic (S8) Hereafter, these processings are repeated until n=N (S4 to S10 Yes). Thus, plane graphics are obtained for other data, and they are radially displayed on the picture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time series data display device for three-dimensionally displaying a plurality of data values generated in parallel on the same time series in a virtual cylinder parallel to the time coordinate axis. .

[0002]

2. Description of the Related Art When a plurality of time series data are displayed on the same screen, they are generally displayed by the following two methods. (1) A time axis and a data axis orthogonal to the time axis are provided for each data, and each data is displayed as a two-dimensional graph. At this time, the graphs should not overlap each other. The displayed data can be distinguished by the color of the graph or the type of line (solid line, broken line, etc.). (2) The time axis common to each data is set to the horizontal direction or the vertical direction, and the size of the data is set in the direction orthogonal to the time axis, and each data is displayed as a two-dimensional graph in an overlapping manner. Each data is a graph color or line type (solid line, broken line, etc.)
Distinguish by.

[0003]

[Problems to be Solved by the Invention] However, (1)
With this method, the number of time-series data that can be displayed on the display device is limited, and it is difficult to understand the relationship with other time-series data. In addition, the method (2) can display more time-series data than the method (1), and the relationship between each data is easy to understand, but since each display data overlaps, the number of data will increase. It becomes difficult to identify.

That is, in the conventional display device, when a plurality of time-series data are displayed on one display device, the number of time-series data that can be displayed at the same time is limited, or the time between the displayed data is limited. There was a problem that identification and comparison were not easy. The present invention has been made to solve the above problems, and an object of the present invention is to display time-series data in which the number of time-series data that can be displayed simultaneously is larger than in the past and each data is easy to identify. To provide a device.

[0005]

In order to achieve the above object, a first aspect of the present invention is directed to a memory for storing a plurality of time-series data generated in parallel, and a memory parallel to a time coordinate axis of the time-series data. A means for allocating the display position of each time series data in the circumferential direction of the outer peripheral surface of the virtual cylinder, and a radial direction with the outer peripheral surface as the reference for each time series data allocated to the outer peripheral surface of the virtual cylinder. A means for synthesizing a two-dimensional figure representing the time change of data by plotting inside, and a two-dimensional figure for each time-series data inside the virtual cylinder as if the viewpoint was placed inside the virtual cylinder and the virtual cylinder was viewed in the longitudinal direction. And a means for displaying a screen corresponding to the respective arrangement positions of.

A second aspect of the present invention virtualizes a memory for storing a plurality of time-series data generated in parallel and a cylinder parallel to the time coordinate axis of the time-series data, and the circumference of the outer peripheral surface of the virtual cylinder. A means for allocating the display position of each time series data to the direction, a means for synthesizing a rotating body figure in which the time change of each time series data allocated on the outer peripheral surface of the virtual cylinder is used as a change in the thickness of the cylinder, and a virtual cylinder And a means for displaying a rotating body figure for each time-series data on the screen corresponding to each arrangement position in the virtual cylinder, as if the viewpoint was placed inside the virtual cylinder and the virtual cylinder was viewed in the longitudinal direction. .

A third aspect of the present invention virtualizes a memory for storing a plurality of time series data generated in parallel and a cylinder parallel to the time coordinate axis of the time series data, and the circumference of the outer peripheral surface of the virtual cylinder. The means for allocating the display position of each time series data to the direction, the means for synthesizing the brightness change pattern that represents the time change of each time series data allocated on the outer peripheral surface of the virtual cylinder as the change in brightness, and the inside of the virtual cylinder. And means for displaying the brightness change pattern for each time-series data on the screen corresponding to each arrangement position in the virtual cylinder as if the virtual cylinder is viewed in the longitudinal direction.

[0008]

In the first aspect of the invention, a plurality of time series data generated in parallel are stored in the memory. Next, a cylinder parallel to the time coordinate axis of the time-series data is virtualized, and the display position of each time-series data is assigned in the circumferential direction of the outer peripheral surface of the virtual cylinder. Each time series data assigned to the outer peripheral surface of the virtual cylinder is plotted on the inner side in the radial direction with the outer peripheral surface as a reference, and a two-dimensional figure representing the time change of the data is synthesized. A two-dimensional figure for each time-series data is displayed on the screen corresponding to each arrangement position in the virtual cylinder, as if the viewpoint was placed inside the virtual cylinder and the virtual cylinder was viewed in the longitudinal direction.

In the second invention, a plurality of time series data generated in parallel are stored in the memory. Next, a cylinder parallel to the time coordinate axis of the time-series data is virtualized, and the display position of each time-series data is assigned in the circumferential direction of the outer peripheral surface of the virtual cylinder. A rotating body figure in which the time change of each time series data assigned to the outer peripheral surface of the virtual cylinder is used as the change in the thickness of the cylinder is synthesized. A rotating body figure for each time-series data is displayed on the screen corresponding to each arrangement position in the virtual cylinder, as if the viewpoint was placed inside the virtual cylinder and the virtual cylinder was viewed in the longitudinal direction.

In the third invention, a plurality of time series data generated in parallel are stored in the memory. Next, a cylinder parallel to the time coordinate axis of the time-series data is virtualized, and the display position of each time-series data is assigned in the circumferential direction of the outer peripheral surface of the virtual cylinder. A luminance change pattern that represents the time change of each time series data assigned to the outer peripheral surface of the virtual cylinder as a change in luminance is synthesized. The luminance change pattern for each time series data is displayed on the screen corresponding to each arrangement position in the virtual cylinder, as if the viewpoint was placed inside the virtual cylinder and the virtual cylinder was viewed in the longitudinal direction.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the first invention. In the figure, a CPU 1 is connected to a main storage device 3, an auxiliary storage device 4, and a display control device 5 via a bus 2.

The CPU 1 centrally controls the operation of the entire system based on the system program stored in the main storage device 3. The auxiliary storage device 4 stores the measurement data A, B, and C, which are time-series data, as a file F. The display control device 5 converts the sent display data into a display signal on the basis of a command from the CPU 1 and C
Send to RT6 and display time series data three-dimensionally.

FIG. 2 is a diagram showing the structure of the file F stored in the auxiliary storage device 4. In the file F, data A, B, C obtained by measuring different physical quantities are described, and conditions such as a unit and range when the data A, B, C are measured are also described. The data A, B, and C of the file F are measured at the same time.

FIG. 3 is a perspective view conceptually showing a display example of the virtual cylinder and the time-series data A, B, C in which the display positions are assigned to the virtual cylinder. A time coordinate axis T is set in the direction from the front left side to the back right side of the figure, and a virtual cylinder V is assumed between the time t ₀ and t _N−1 with the time coordinate axis T as the center.

The display positions of the time series data A, B, C are assigned to the peripheral surface of the cylinder V, and the time coordinate axes L _A , L _B ,
Set L _C. In each coordinate axis, the circumferential surface of the virtual cylinder V is used as a reference, and the values of the time-series data A, B, and C are set as heights toward the central axis, and are plotted in order on a plane connecting each coordinate axis and the coordinate axis T. Thus, two-dimensional figures W _A , W _B and W _C shown by diagonal lines are obtained.

FIG. 4 shows the virtual cylinder V shown in FIG. 3 which has been sliced out at arbitrary times t _n to t _{n + 1} . Times t _{a, n} and t _{a, n + 1} , t _{b, n} and t _{b, n} for each time coordinate axis are on the plane connecting the time coordinate axes L _A , L _B and L _C and the central time coordinate axis T. ₊₁ t _{c, n} and t
_{c, n + 1} and the corresponding data values P _{a, n} and P
_{a, n + 1} , P _{b, n} and P _{b, n + 1} , P _{c, n} and P _{c, n + 1} are plotted, and three trapezoidal figures W _A , W _B and W _C are obtained. It is formed.

FIG. 5 shows the virtual cylinder V shown in FIG. 3 as a CRT.
The example displayed on the screen of 6 is shown. That is, when assuming a state in which the virtual cylinder V is viewed in the longitudinal direction with a viewpoint placed inside the virtual cylinder V, two-dimensional figures W _A , W _B , W showing the transitions of the time series data A, B, C. _{The Cs} are displayed radially on the screen. It is known that the section and time of the two-dimensional figures W _A , W _B , and W _C displayed on the screen can be arbitrarily specified, and that the image can be enlarged / reduced or the time axis can be scrolled back and forth while watching the display. It can be realized by using image processing technology.

Further, when the time series data A, B and C are displayed while being measured, the change in the measurement data is displayed on the screen in real time. The time series data A, B, C
The two-dimensional figures W _A , W _B , and W _{C related to} are displayed slightly inclined in the rotation direction. Further, concentric circles formed by broken lines in the screen are scales indicating the same measurement time.

FIG. 6 is a flow chart showing the processing for performing the above-mentioned three-dimensional image display. First, the radius and the length of the virtual cylinder are designated (S1), and then the display position of the time series data A on the circumferential surface of the cylinder is determined (S2). Next, the head (n = 0) data A _n and A _{n + 1} of the time coordinate axis are read from the file F (S3, 4).

Here, the radius of the cylinder is the maximum of the measurement range,
The data A _n and A _{n + 1} are normalized into a _n and a _{n + 1} so that the inner peripheral surface of the cylinder has the minimum measurement range (S5). Furthermore, on the straight line L _A which is the time coordinate axis of the time series data A on the circumference, the points t _{a, n} and t corresponding to the times t _n and t _{n + 1.
a, n + 1} is obtained (S6).

Further, in point t _a, toward the center of the cross section of the cylinder in the _n, the point t _a, the distance from the _n is a point which is a _n P _a, and _n,
Point t _a, toward the center of the cross section of the cylinder in the _{n + 1,} the point t _a, the distance from the _{n + 1} a _{n + 1} at which point the P _a, and _{n + 1} (S7). Next, _a plane figure obtained by connecting the points ta _{, n} , ta _{, n + 1} , Pa _{, n} , Pa _{, n + 1} is added to the inner circumference of the cylinder (S8). After that,
Similarly, while advancing on the time coordinate axis, these processes are repeated until n = N (S4 to S10 Yes).

The same processing is performed in parallel for the time series data B and C. In this embodiment, the changes in the time series data A, B, C are displayed as changes in the width of the two-dimensional figure arranged in the virtual cylinder V. As a result, the number of time-series data that can be displayed at the same time is increased as compared with the conventional display, and it becomes easy to compare the time-series data displayed as the two-dimensional figures W _A , W _B , and W _C.

Next, an embodiment of the second invention will be described. The configuration of the hardware and the data file in the embodiment of the second invention is the same as that of the embodiment of the first invention, and therefore its explanation is omitted. FIG. 7 is a perspective view conceptually showing a display example of the virtual cylinder and the time series data A, B, C in which the display positions are assigned to the virtual cylinder.
A time coordinate axis T is set in the direction from the front left side to the back right side of the figure, and a virtual cylinder V is assumed between the time t ₀ and t _N−1 with the time coordinate axis T as the center.

The display positions of the time series data A, B, C are assigned to the peripheral surface of the cylinder V, and the time coordinate axes L _A , L _B ,
Set L _C. For each coordinate axis, a cylinder with the coordinate axis as the central axis is generated, and its outer diameter is changed according to the value of the data for each time. In other words, figure Q _A of the rotating body whose outer diameter varies stepwise every time, Q _B, Q _C is obtained.

FIG. 8 shows the virtual cylinder V of FIG. 7 cut out from arbitrary times t _n to t _{n + 1} in a circular slice. Each time axes L _A, L _B, the L _C, time t _a of each coordinate _{axis, n} from _{t a, n + 1, t} b, from _n t _{b, n + 1,}
Between t _{c, n} and t _{c, n + 1} , a cylindrical figure Q _A having radii r _{a, n} , r _{b, n} , r _{c, n} according to the value of each data at time t _n , Q _B, Q _C is generated.

FIG. 9 shows the virtual cylinder V shown in FIG. 7 as a CRT.
The example displayed on the screen of 6 is shown. That is, when assuming a state viewed through the imaginary cylinder V in the longitudinal direction with the viewpoint inside the virtual cylinder V, time series data A, B, rotator figure Q _A showing a transition of C, Q _B, Q _{The Cs} are displayed radially on the screen.

The rotator Q _A on the screen, Q _B, section and time of Q _C can be arbitrarily specified, also or scale the image while viewing the display, it is also possible to scroll the time axis before and after It is possible. Furthermore, time series data A, B,
When C is displayed while being measured, changes in measurement data are displayed on the screen in real time. The concentric circles formed by broken lines in the screen are scales indicating the same measurement time.

FIG. 10 is a flowchart showing the processing for performing the above-mentioned three-dimensional image display. First, specify the radius of the virtual cylinder, the length, and the radius of the rod-shaped object (S11),
Next, the display position of the time-series data A on the cylindrical peripheral surface is determined (S12). Next, the beginning of the time coordinate axis (n =
The data A _{n of} 0) is read from the file F (S13,
14).

Here, the data A _n is normalized to a _n so that the maximum radius of the rod-shaped object is the maximum of the measurement range and the minimum radius thereof is the minimum of the measurement range (S15). Further, a straight line L which is the time coordinate axis of the time series data A on the circumference
_The points t _{a, n} and t _{a, n + 1} corresponding to the times t _n and t _{n + 1} on _A are obtained (S16).

Next, the cylinder data whose center is on the straight line L _A and whose length is from the point t _{a, n} to the point t _{a, n + 1} and whose radius is r _{a, n} = a _n is created. Add to cylinder data up to t _{a, n} .
(S17). Thereafter, similarly, while advancing on the time coordinate axis, these processes are repeated until n = N (S14).
~ S19 Yes). The same processing is performed in parallel for the time series data B and C.

In this embodiment, as in the first embodiment of the present invention, the number of time-series data that can be displayed simultaneously is increased as compared with the prior art, and when displayed as the rotating body figures Q _A , Q _B and Q _C. Comparison of series data becomes easy. Moreover, when the time series data is binary data, the change can be intuitively recognized as an image.

Next, an embodiment of the third invention will be described. The configuration of the hardware and the data file in the embodiment of the third invention is the same as that of the embodiment of the first invention, and therefore its explanation is omitted. FIG. 11 is a perspective view conceptually showing a display example of the virtual cylinder and the time-series data A, B, C in which the display positions are assigned thereto.

The time coordinate axis T extends from the front left to the rear right in the figure.
Is set, and time t is centered on this time coordinate axis T.₀From
t_N-1Assume a virtual cylinder V in between. Circumferential surface of cylinder V
Allocate the display position of time series data A, B, C to
Time coordinate axis L_A, L_B, L _CTo set. Each coordinate axis
Then, on the circumferential surface of the virtual cylinder V, a constant width is centered on the coordinate axis.
Brightness display band S_A, S_B, S_CTo form. This brightness display
Obi S_A, S_B, S_CConvert the data value at each time to luminance
By displaying the data in a
Displayed as a turn.

FIG. 12 shows the virtual cylinder V shown in FIG. 11 which is cut out from arbitrary times t _n to t _{n + 1} in a circular slice. On the cylindrical circumferential surface on which the time coordinate axes L _A , L _B , and L _C are located, the time t _{a, n} to t _{a, n + 1} , for each time coordinate axis.
Luminance display bands S _A , S _B , and S _C having a width h from t _{b, n} to t _{b, n + 1} and t _{c, n} to t _{c, n + 1 with the} coordinate axis as the center.
Is formed.

FIG. 13 shows the virtual cylinder V shown in FIG.
The example displayed on the screen of RT6 is shown. That is, assuming that the virtual cylinder V is viewed in the longitudinal direction with the viewpoint inside the virtual cylinder V, the brightness change patterns S _A , S _B , and S indicating the transitions of the time series data A, B, and C. _{The Cs} are displayed radially on the screen.

The brightness change pattern S _A displayed on the screen,
The section and time of S _B and S _C can be arbitrarily specified, and the image can be enlarged or reduced while viewing the display, or the time axis can be scrolled back and forth. Furthermore, when the time-series data A, B, and C are displayed while being measured, changes in the measurement data are displayed on the screen in real time.

FIG. 14 is a flowchart showing the processing for performing the above-mentioned three-dimensional image display. First, the radius and length of the virtual cylinder are designated (S21), and then the display position of the time series data A on the circumferential surface of the cylinder is determined (S2).
2). Next, the data A _{n at} the beginning (n = 0) of the time coordinate axis
Is read from the file F (S23, 24).

Here, the maximum value of the brightness that can be displayed is the maximum of the measurement range, and the minimum value thereof is the minimum of the measurement range.
The data A _n is normalized to I _{a, n} (S25). Furthermore, on the straight line L _A which is the time coordinate axis of the time series data A on the circumference, the points t _{a, n} and t corresponding to the times t _n and t _{n + 1.
a, n + 1} is obtained (S26).

Next, center the cylindrical inner surface having a width along the circumference around the straight line L _A is h, the point t _a, the point from _n t _a, until _{n + 1,} the luminance I _a, as _n Fill (S27). After that,
Similarly, while proceeding on the time coordinate axis, these processes are repeated until n = N (S24 to S29 Yes).
The same processing is performed in parallel for the time series data B and C.

In this embodiment, as in the first and second embodiments, the number of time-series data that can be displayed simultaneously is increased and the brightness change patterns S _A , S _B and S are increased as compared with the conventional one.
_It also makes it easier to compare the time series data displayed as _C.

[0041]

As described above, according to the first invention,
Time transitions of a plurality of time-series data generated in parallel are displayed in contrast with each other as a two-dimensional figure arranged in a virtual cylinder. As a result, the number of time-series data that can be displayed at the same time is increased as compared with the related art, and the displayed time-series data can be easily compared.

According to the second aspect of the invention, as in the first aspect of the invention, the time shifts of a plurality of time series data generated in parallel are respectively compared as a rotating body figure of varying thickness arranged in a virtual cylinder. Will be displayed. As a result, the number of time-series data that can be displayed at the same time is increased as compared with the related art, and the displayed time-series data can be easily compared. In particular, when the time-series data is binary data, the change can be intuitively recognized as an image.

According to the third invention, similarly to the first and second inventions, the time shifts of a plurality of time-series data generated in parallel are compared and displayed as a pattern represented as a change in luminance. To be done. As a result, the number of time-series data that can be displayed at the same time is increased compared to the conventional case. Further, it becomes easy to compare the displayed time series data, and the change can be intuitively recognized as an image.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the first invention.

FIG. 2 is a diagram showing a configuration of files stored in an auxiliary storage device of FIG.

FIG. 3 is a perspective view conceptually showing the structure of a display image in the embodiment of the first invention.

FIG. 4 is a perspective view taken out at an arbitrary time in FIG.

FIG. 5 is a diagram showing an example of a screen displayed in the embodiment of the first invention.

FIG. 6 is a flowchart showing image processing in the embodiment of the first invention.

FIG. 7 is a perspective view conceptually showing the structure of a display image in the embodiment of the second invention.

FIG. 8 is a perspective view taken out at an arbitrary time in FIG.

FIG. 9 is a diagram showing an example of a screen displayed in the embodiment of the second invention.

FIG. 10 is a flowchart showing image processing in the embodiment of the second invention.

FIG. 11 is a perspective view conceptually showing the structure of a display image in the embodiment of the third invention.

FIG. 12 is a perspective view showing an arbitrary time in FIG.

FIG. 13 is a diagram showing an example of a screen displayed in the embodiment of the third invention.

FIG. 14 is a flowchart showing image processing in the embodiment of the third invention.

[Explanation of symbols]

 1 CPU 2 Bus 3 Main Storage Device 4 Auxiliary Storage Device 5 Display Control Device 6 CRT

Claims (3)

[Claims] 1. A memory for storing a plurality of time-series data generated in parallel, a cylinder parallel to the time coordinate axis of the time-series data is virtualized, and each time is set in the circumferential direction of the outer peripheral surface of the virtual cylinder. Means for allocating the display position of the series data, and means for plotting each time series data allocated on the outer peripheral surface of the virtual cylinder to the inner side in the radial direction with the outer peripheral surface as a reference, and synthesizing a two-dimensional figure representing the time transition of the data And a means for displaying a two-dimensional figure for each time-series data on the screen corresponding to each position in the virtual cylinder as if the virtual cylinder was viewed in the longitudinal direction with the viewpoint inside the virtual cylinder. A time-series data display device. 2. A memory for storing a plurality of time-series data generated in parallel, a cylinder parallel to the time coordinate axis of the time-series data is virtualized, and each time is set in the circumferential direction of the outer peripheral surface of the virtual cylinder. A means for allocating the display position of the series data, a means for synthesizing a rotating body figure in which the time change of each time series data allocated to the outer peripheral surface of the virtual cylinder is used as a change in the thickness of the cylinder, and a viewpoint inside the virtual cylinder. The time-series data including means for displaying the rotating body figure for each time-series data corresponding to each position in the virtual cylinder as if the virtual cylinder is viewed in the longitudinal direction. Display device. 3. A memory for storing a plurality of time-series data generated in parallel, a cylinder parallel to the time coordinate axis of the time-series data is hypothesized, and each time is set in the circumferential direction of the outer peripheral surface of the virtual cylinder. A means for allocating the display position of the series data, a means for synthesizing a brightness change pattern that represents the time change of each time series data allocated on the outer peripheral surface of the virtual cylinder as a change in brightness, and a viewpoint is placed inside the virtual cylinder. Time-series data display characterized by including means for displaying on the screen the luminance change pattern for each time-series data corresponding to each arrangement position in the virtual cylinder, as if the virtual cylinder was viewed in the longitudinal direction. apparatus.