JP2003075203A - Screen displaying method for measuring instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a displaying method for measuring instruments which enables the recognition of a range within which measured data sampled at a separate time period exist at a glance of a waveform display screen showing measured data sampled at a regular time period. SOLUTION: The start point and end point of sampling data sampled at a separate time period and its time duration are indicated with vertical lines 12, 13 and a horizontal bar or sampling bar 14 on a waveform display screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen display method for measuring instruments.

[0002]

2. Description of the Related Art For example, an oscilloscope has a display screen, and measured data is displayed on the display screen in the form of a waveform. This type of measuring device normally performs sampling, for example, every 1 second, and accumulates the measured data by this sampling in one storage area of the internal memory of the measuring device.
For example, sampling is performed at another cycle (for example, 1 millisecond) by an external trigger signal, and this measurement data is stored in another storage area.

For convenience of explanation, the accumulation of measurement data sampled in a normal cycle is called "low-speed sampling",
Accumulation of measurement data sampled at another cycle in the middle is called “high-speed sampling”, and as shown in FIG. 2-4
The measurement data according to is stored in an independent storage area. Then, on the display screen 5 of the measuring instrument, one window can be divided or a plurality of windows can be displayed with the waveforms sampled at low speed and at high speed.

[0004]

However, if the user looks at the display screen alone, the waveform 1 generated by the slow sampling is
There is a problem that it is not possible to determine in which part of the measurement data the high speed sampling exists.

Therefore, an object of the present invention is to recognize the range in which the measurement data sampled in another cycle exists only at a glance at the waveform display screen displaying the measurement data sampled in the normal cycle. It is to provide a display method of a measuring instrument that can be used.

[0006]

According to the present invention, such a technical problem is that the measurement data sampled at a normal cycle is accumulated in one storage area of the internal memory while the measurement data sampled at another cycle. Is a screen display method of a measuring device for accumulating in another storage area, and the measurement data sampled in the other cycle is present in the screen display for displaying the measurement data sampled in the normal cycle in the form of a waveform. This is achieved by providing a screen display method for a measuring instrument, which is characterized by displaying an identification means for indicating a period.

[0007]

In a preferred embodiment of the present invention, the identifying means is a mark indicating a start position and an end position of sampling in another cycle, such as a vertical line or sampling in another cycle. It consists of a horizontal bar that shows the start to the end. These may be displayed alone on the screen,
You may make it display in combination.

The above objects and other objects of the present invention, and the effects thereof will be apparent from the following detailed description of the preferred embodiments of the present invention.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 2 is a diagram for conceptually explaining the display method of the measuring device according to the present invention. In the figure, reference numeral 10 indicates a display screen of, for example, an oscilloscope (not shown), and the display screen 10 shown in the drawing displays measurement data in the form of a waveform 11 by sampling of a normal cycle or low speed sampling. .

The display screen 10 has two vertical lines 12,
13 are displayed at a distance from each other, and a horizontal bar 14 extending between the two vertical lines 12 and 13 is displayed.

The vertical line 12 on the left side shows the start point (trigger occurrence position) of sampling or high-speed sampling in another cycle, and the vertical line 13 on the right side shows the end point of high-speed sampling. Further, the horizontal bar 14 indicates the time width or period in which the measurement data sampled at high speed exists.

When a trigger is generated and high-speed sampling is started during sampling in the low-speed sampling period, the vertical line 12 on the left side is displayed at that time, and the horizontal bar 14 extends rightward as time passes.

For example, when the measurement data of a predetermined number of times set in advance is completed, the high speed sampling ends, and the vertical line 13 on the right side is displayed at the end position.

Thus, the user can immediately visually know in which part of the waveform 11 at the normal sampling period the measurement data by the high speed sampling exists.

The start position and the end position of the high speed sampling are visually shown on the screen by the vertical lines 12 and 13, and the time width of the high speed sampling is clearly shown by the horizontal bar 14. However, this is only an example. Absent. For example, the vertical line 12 at the start position is displayed in red, and the vertical line 13 at the end position is displayed.
Is displayed in another color, for example blue, the horizontal bar 14
May be omitted. Alternatively, the vertical lines 12 and 13 may be omitted and only the horizontal bar 14 may allow the user to visually recognize the start position and the end position of high-speed sampling.

Further, visual recognition means or marks for visually recognizing the start position and the end position of the high speed sampling may be displayed instead of the vertical lines 12 and 13. For example, as visual recognition means or marks, instead of the vertical lines 12 and 13, arrows indicating the start position and the end position of high-speed sampling may be displayed.

The procedure of a series of processing for displaying a waveform on the display screen 10 will be described with reference to the flowchart shown in FIG.

First, in step S10, when the low speed sampling is started, this measurement data is waveform 11 from the start position of this low speed sampling to the latest measurement data position.
Is displayed on the display screen 10 in the form of (step S11,
(Fig. 2).

In the next step S12, it is determined whether or not high speed sampling is being performed. Since low-speed sampling is currently being performed and high-speed sampling is not being performed, the process proceeds to the next step S13, and it is determined whether or not a trigger has occurred.

When a high speed sampling start trigger occurs, the process proceeds from step S13 to step S14, and high speed sampling is started. The sampling cycle of high-speed sampling can be arbitrarily set by the user in advance, and the measurement data starts to be accumulated at the sampling cycle set by the user.

When high-speed sampling is started, a high-speed sampling bar or a horizontal bar 14 is displayed on the display screen 10 (FIG. 2) in addition to the low-speed sampling waveform line 11, and the high-speed sampling start position is indicated. Vertical line 1
2 is displayed.

During execution of the high speed sampling, the process proceeds from step S12 to step S15. As a result, the horizontal bar 14 extends rightward with the lapse of time. Then, when the preset or designated sampling number of high-speed sampling is completed, the high-speed sampling ends, and along with this, the vertical line 13 indicating the end position of high-speed sampling
(Fig. 2) is displayed.

When the high speed sampling is completed, the routine proceeds from step S12 to step S13, where it is judged whether or not a trigger has occurred.
When it is determined to be O, the process proceeds to step S16, and it is determined whether or not the trigger has occurred once or more in the past. If the trigger has occurred one or more times in the past and high-speed sampling is performed, step S15 is performed. Go to and on the screen,
Past sampling bar or horizontal bar 14 and vertical line 1
2 is displayed.

Therefore, the horizontal bar 14 currently being subjected to high-speed sampling is displayed on the screen, and the start position and end position of the high-speed sampling performed in the past and the period thereof are the sampling bar or horizontal bar 14 and the vertical line 12. , 13 are displayed.

[Brief description of drawings]

FIG. 1 conceptually illustrates a measuring device that accumulates measurement data in one storage area at a normal sampling cycle and, in the middle of that, accumulates measurement data in another independent storage area at another sampling cycle. FIG.

FIG. 2 is a diagram conceptually illustrating a display method according to the present invention.

FIG. 3 is a flowchart for explaining an example of a procedure for executing the display method according to the present invention.

[Explanation of symbols]

10 Display screen of measuring instrument 11 Waveform line of measurement data sampled at normal cycle 12 Vertical line 13 for indicating high-speed sampling start position 13 Vertical line for indicating high-speed sampling end position 14 For indicating high-speed sampling time width Horizontal bar

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Claims (4)

[Claims] 1. A method of displaying a screen of a measuring instrument, wherein measurement data sampled at a normal cycle is accumulated in one storage area of an internal memory while measurement data sampled at another cycle is accumulated in another storage area. A measuring device characterized by displaying an identifying means for indicating a period during which the measurement data sampled in the other cycle is present on the screen display for displaying the measurement data sampled in the normal cycle in the form of a waveform. Screen display method. 2. The screen display method according to claim 1, wherein the identifying means includes a mark indicating a start position and an end position of sampling in the different cycle. 3. The screen display method according to claim 1, wherein the identifying means includes a horizontal bar indicating from the start to the end of sampling in the different cycle. 4. The screen display method according to claim 2, wherein the marks indicating the sampling start position and the end position are vertical lines.