JP3407667B2 - Data display method and measuring device using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data display method for graphically displaying measurement data, and more particularly to a data display method capable of simultaneously displaying data information and waveform information and a measuring instrument using the same.

[0002]

2. Description of the Related Art In a conventional data display method in a measuring instrument or the like, data information of measured data or waveform information generated based on this data is displayed on a display means of the measuring instrument or the like.

FIG. 6 is a block diagram showing an example of a measuring instrument using such a conventional data display method. Figure 6
1 is a measuring means, 2 is an acquisition memory means,
3 is a data processing means, 4 is a display switching means, 5 is a switching state memory means, and 6 is a display means. As a measuring device, a time interval analyzer having a data list and histogram display function is assumed.

The output of the measuring means 1 is connected to the acquisition memory means 2, and the output of the acquisition memory means 2 is connected to the data processing means 3. The output of the display switching means 4 is connected to the switching state memory means 5, and the output of the switching state memory means 5 is connected to the data processing means 3. The output of the data processing means 3 is connected to the display means 6.

The operation of the conventional example shown in FIG. 6 will be described with reference to FIGS. 7 and 8. FIG. 7 is a flowchart explaining the operation of the data processing means 3, and FIG. 8 is an explanatory view showing an example of a display screen displayed on the display means 6.

In "S001" in FIG. 7, the data processing means 3 sequentially stores the data measured by the measuring means 1 in the acquisition memory means 2 and reads the stored data from the acquisition memory means 2 to obtain a data list or the like. A process of creating waveform information such as data information and a histogram based on this data is performed.

In "S002" in FIG. 7, the data processing means 3 stores the output from the display switching means 4 in the switching state memory means 5 and whether the information stored in the switching state memory means 5 is a waveform information display. If the information stored in the switching state memory means 5 is waveform information display, the data processing means 3 displays the waveform information such as a histogram on the display means 6 in "S003" in FIG. Let

On the other hand, if the information stored in the switching state memory means 5 is not waveform information display, "S004" in FIG.
At, the data processing means 3 displays data information such as a data list on the display means 6.

For example, in the case of displaying data information, FIG.
The data list shown in the middle "DL01" is "MD0" in FIG.
The measured data values as shown in 1 ”are displayed, while in FIG.
The frequency at which the measurement data is measured as shown in the middle "MN01" is displayed. Further, in the case of displaying the waveform information, a histogram as shown by "DH01" in FIG. 8 is displayed.

Further, when the cursor is operated on the histogram display screen by the operation means (not shown in FIG. 6), the information of the histogram corresponding to the current cursor position is displayed.

For example, if a cursor such as "CS01" in FIG. 8 is moved to an appropriate position by operating the cursor operating means, the information of the histogram corresponding to the position of the cursor becomes "HI01" in FIG. Displayed as shown. In FIG. 8, “HI01” is measured data “6” and frequency “10”.
00 "is displayed, which corresponds to the information of the position indicated by" PT01 "in FIG.

As a result, it becomes possible to selectively display the data list which is the data information and the histogram which is the waveform information, and the data information at the cursor position is also displayed by operating the cursor on the histogram display screen. Since it is displayed as a data, it will be useful for data analysis.

[0013]

However, the conventional example shown in FIG. 6 has a problem that the switching operation is required because the data information and the waveform information generated based on this data are on different screens. For example, when the user analyzes the measurement data from the histogram, the histogram display must be switched to the data display, which complicates the operation.

Further, by operating the cursor on the histogram display screen, data information at the cursor position is also displayed, but when the horizontal axis direction of the histogram display is compressed and displayed, the measurement data can be known from the cursor position. There was a problem that said it would be difficult. For example, if a plurality of pieces of data information are entered at intervals smaller than the moving resolution of the cursor than the compressed display in the horizontal axis direction, the data information cannot be read. Therefore, the problem to be solved by the present invention is to realize a data display device capable of simultaneously displaying data information and waveform information.

[0015]

In order to achieve such a object, the invention according to claim 1 of the present invention is a data display method for graphically displaying measurement data, and a display screen is a data information display area. And a waveform information display area, data information is displayed in the divided data information display area, and a waveform in which the horizontal axis direction is compressed based on the data information in the divided waveform information display area.
The information is generated and displayed, and the data information display area is displayed.
A first indicating one of the data information displayed in the area
When the cursor is moved, the first cursor moves
It is displayed in the waveform information display area in conjunction with the movement position.
A first position indicating the position of the waveform information compressed in the horizontal direction
By moving the 2 cursor , the horizontal axis is compressed
The second cursor moves to the corresponding position of the generated waveform information
And easily know the measured data from the data information.
Will be possible.

[0016] According to a second aspect of the invention, a data display method is an invention of claim 1, wherein, to display the histogram as the waveform information, than to display the data list showing the measurement frequency as the data information, horizontal Axial direction
A second car at the corresponding position in the compressed histogram
The sol moves, and from the data list showing the measurement frequency
It becomes possible to easily know the measurement data.

According to a third aspect of the present invention, in the data display method according to the first aspect of the present invention, time-series waveform data is displayed as the waveform information, and a data list showing time-series measurement data is displayed as the data information. Correspondence of time series waveform data compressed in the horizontal axis direction by displaying
The second cursor moves to the position where
Easily know the measured data from the data list showing constant data
Will be possible.

According to a fourth aspect of the present invention, in a measuring instrument for displaying data, measuring means for measuring data, acquisition memory means for sequentially storing the measured data, display means, and data based on the data. The information and the waveform information compressed in the horizontal axis direction based on the data information are generated, and the display screen displayed on the display means is divided into a data information display area and a waveform information display area, and the data information display area is displayed. wherein the data information table by operation of <br/> are both cursor operation means for displaying the waveform information horizontal axis is compressed to the data information to the waveform information display region
Indicating one of the data information displayed in the display area
1 of the first cursor
It is displayed in the waveform information display area in conjunction with the movement position.
Move the second cursor that indicates the position of the waveform information
By comprising a data processing means for the horizontal axis
The second cursor at the corresponding position of the compressed waveform information
Can be moved and the measured data can be easily known from the data information.
Will be possible.

According to a fifth aspect of the present invention, in the measuring device according to the fourth aspect of the present invention, the data processing means causes the display means to display a data list indicating a histogram and measurement frequency as the waveform information and the data information. Correspondence of the histogram with the horizontal axis compressed by displaying
The second cursor moves to the position where
Measurement data can be easily known from the data list shown
Become Noh.

According to a sixth aspect of the present invention, in the measuring device according to the fourth aspect of the present invention, the data processing means is data indicating time-series waveform data and time-series measurement data as the waveform information and the data information. By displaying the list on the display means, the time axis is compressed in the horizontal axis direction.
The second cursor moves to the corresponding position in the column waveform data
In addition, from the data list showing the time series measurement data
It becomes possible to easily know the measurement data.

[0021]

[0022]

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a measuring instrument using the data display method according to the present invention. In FIG. 1, 7 is a measuring means including a sensor circuit and an amplifying circuit, 8 is an acquisition memory means, 9 is a cursor operating means such as a mouse and a keyboard and a rotary knob, and 10 is a control circuit such as a CPU. Data processing means, 1
Reference numeral 1 is a display means such as a CRT or a liquid crystal display. As a measuring device, a time interval analyzer having a data list and histogram display function is assumed.

The output of the measuring means 7 is connected to the acquisition memory means 8, and the outputs of the acquisition memory means 8 and the cursor operating means 9 are connected to the data processing means 10, respectively. The output of the data processing means 10 is connected to the display means 11.

The operation of the embodiment shown in FIG. 1 will now be described with reference to FIG.
This will be described with reference to FIGS. 3, 4 and 5. 2 and 4 are flowcharts for explaining the operation of the data processing unit 10, and FIGS. 3 and 5 are explanatory diagrams showing examples of display screens displayed on the display unit 11.

In "S101" in FIG. 2, the data processing means 10 sequentially stores the data measured by the measuring means 7 in the acquisition memory means 8, and the data stored in "S102" in FIG. Read from.

In "S103" in FIG. 2, the data processing means 10 generates a histogram which is waveform information based on the read data, and in "S104" in FIG. 2, a data list which is data information.

Then, in "S105" in FIG. 2, the display screen of the display means 11 is divided into a "data information display area" and a waveform information display area, and in "S106" in FIG. The generated histogram is displayed in the divided waveform information display area, and "S" in FIG. 2 is displayed.
At 107 ″, the generated data list is displayed in the divided data information display area of the display means 11.

For example, the display screen of the display means 11 is shown in FIG.
It is divided into a data information display area as shown in the middle "DDA1" and a waveform information display area as shown in "WDA1" in FIG. 3, and each display area is filled with measurement data shown in "DL02" in FIG. Data list showing measurement frequency and Fig. 3
The histograms shown in the middle "DH02" are displayed.

Further, in "S201" in FIG. 4, the data processing means 10 judges whether or not there is a cursor operation by the cursor operation means 9, and if there is no cursor operation, it waits.

On the other hand, when there is a cursor operation, FIG.
In the middle "S202", the data processing means 10 moves the "data cursor" on the data list displayed in the data information display area based on the output of the cursor operating means 9,
In "S203" in FIG. 4, the "waveform cursor" on the histogram displayed in the waveform information display area is moved in association with the movement of the "data cursor".

For example, when the "data cursor" shown in "CS02" in FIG. 5 is moved to the position shown in "PT02" in FIG. 5 on the data list by the operation of the cursor operating means 9, it becomes "CS03" in FIG. The "waveform cursor" shown also moves to the position corresponding to the position of the data list.

That is, the cursor operating means 9 is shown in FIG.
Only the "data cursor" shown in the middle "CS02" is operated, and the "waveform cursor" shown in "CS03" in FIG. 5 is stopped by the data processing means 10 moving the "data cursor" shown in "CS02" in FIG. The position is moved to a position on the waveform information display area corresponding to the position.

Therefore, regardless of the movement resolution of the "waveform cursor" shown in "CS03" in FIG. 5, "CS0" in FIG.
Since the data information can be selected by the "data cursor" shown in 2 ", there is no data information that cannot be read from the histogram on the histogram display screen as in the conventional example.

As a result, by dividing the display screen into the data information display area and the waveform information display area and simultaneously displaying the data information and the waveform information, a complicated operation such as a screen switching operation becomes unnecessary.

Further, by moving the "waveform cursor" on the histogram side in conjunction with the movement position of the "data cursor" on the data list side, it is possible to deal with the case where the horizontal axis direction of the histogram display is compressed. The "waveform cursor" moves to the specified position, and the measured data can be easily known from the data list.

As a measuring instrument using the data display method, a time interval analyzer having a display function of a data list and a histogram is supposed. However, this measuring instrument is used for a digital oscilloscope or a logic analyzer which displays a voltage waveform as waveform information. A data display method may be used.

In the description of FIG. 1, a histogram is used as the waveform information and a data list showing the measurement frequency of the measurement data is used as the data information. Time series waveform data is used as the waveform information and time series measurement is used as the data information. It may be a data list showing data.

In the case of time variation display in which the horizontal axis is the elapsed time and the vertical axis is the measured value, the long period jitter is analyzed from the waveform information displayed in the waveform information display area, and the data displayed in the data information display area is analyzed. It also becomes possible to analyze short-period jitter from information.

[0040]

As is apparent from the above description,
The present invention has the following effects. Claim 1 to contract
According to the invention of claim 6, the display screen is displayed in the data information display area.
And waveform information display area divided into data information and waveform information
Is displayed at the same time and one of the information items is indicated.
Displayed in the waveform information display area in conjunction with the movement position of the cursor
The second cursor to indicate the position of the waveform information
The waveform information pairs compressed in the horizontal axis
The second cursor moves to the position
It becomes possible to easily know the measurement data from the information.

[0041]

[0042]

[0043]

[Brief description of drawings]

FIG. 1 is a configuration block diagram showing an embodiment of a measuring instrument using a data display method according to the present invention.

FIG. 2 is a flowchart illustrating the operation of data processing means.

FIG. 3 is an explanatory diagram showing an example of a display screen displayed on a display unit.

FIG. 4 is a flowchart illustrating the operation of the data processing means.

FIG. 5 is an explanatory diagram showing an example of a display screen displayed on a display unit.

FIG. 6 is a configuration block diagram showing an example of a measuring instrument using a conventional data display method.

FIG. 7 is a flowchart illustrating the operation of the data processing means.

FIG. 8 is an explanatory diagram illustrating an example of a display screen displayed on a display unit.

[Explanation of symbols] 1,7 Measuring means 2,8 Acquisition memory means 3,10 Data processing means 4 Display switching means 5 Switching state memory means 6,11 display means 9 Cursor operation means

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Claims (6)

(57) [Claims] 1. A data display method for graphically displaying measurement data, wherein a display screen is divided into a data information display area and a waveform information display area, and data information is displayed in the divided data information display area. In the divided waveform information display area, waveform information compressed in the horizontal axis direction based on the data information is generated and displayed.
And the data displayed in the data information display area.
If you move the first cursor that points to one of the
When the first cursor is moved,
Before the horizontal axis direction displayed in the waveform information display area is compressed
Move the second cursor that indicates the position of the waveform information.
Data display method, characterized in that that. 2. The data display method according to claim 1, wherein a histogram is displayed as the waveform information, and a data list showing a measurement frequency is displayed as the data information. 3. The data display method according to claim 1, wherein time-series waveform data is displayed as the waveform information, and a data list showing time-series measurement data is displayed as the data information. 4. A measuring device for displaying data, a measuring means for measuring data, an acquisition memory means for sequentially storing the measured data, a display means, data information based on the data and the data information. Based on this, waveform information compressed in the horizontal axis direction is generated, and the display screen displayed on the display means is divided into a data information display area and a waveform information display area, and the data information is displayed in the data information display area. Horizontal axis in the information display area
Both cursors Procedure when but displays the waveform information which has been compressed
It is displayed in the data information display area by operating the operation means.
Move the first cursor to point to one of the data information
And moves in conjunction with the moving position of the first cursor.
Of the waveform information displayed in the waveform information display area
Data processing for moving the second cursor indicating the position
Measuring instrument, characterized in that a means. 5. The measuring instrument according to claim 4, wherein the data processing means causes the display means to display a histogram and a data list indicating measurement frequency as the waveform information and the data information. 6. The data processing means causes the display means to display a data list showing time-series waveform data and time-series measurement data as the waveform information and the data information. Measuring instrument.