JPH08105916A - Waveform measuring device - Google Patents

Abstract

PURPOSE: To automatically assign a proper display zone so that a plurality of waveforms can be displayed without mutual superposition by calculating a display area by use of a specified expression so that the measurement result of each signal is never superposed. CONSTITUTION: A measuring part 2 outputs the waveform data for an analog signal or digital signal added to an input terminal 1 to a data processing part 3 as a digitized measured data. The data processing part 3 performs various operations for display and recording of the measured data. According to the automatic setting instruction inputted from a man-machine operating part 4, an area arithmetic part 5 calculates a display (recording) area for displaying (recording) the measurement result of each signal in such a manner as not to be mutually superposed by an expression: WA=(100=WD*D)/A. In the expression, A is analog waveform number, D is digital waveform number, WA is display (recording) width for one analog waveform, WD is display (recording) width for one digital waveform.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waveform measuring apparatus, and more particularly, to an improvement of a waveform measuring apparatus configured to display (record) measurement results of a plurality of channels including at least either analog signals or digital signals. It is about.

[0002]

2. Description of the Related Art One of waveform measuring devices configured to display (record) measurement results of a plurality of channels including at least one of an analog signal and a digital signal (binarized logic signal). There is. When displaying the plurality of measurement results on the same screen, for example, the plurality of measurement results may be displayed so as to overlap the entire display area of the screen as shown in FIG. 3, or the plurality of measurement results may be displayed as shown in FIG. A display area is allocated to each measurement result (hereinafter referred to as zone setting) so that the measurement results are displayed so as not to overlap. Here, according to the former display method, although each measurement result can be greatly enlarged and displayed,
Since the measurement results overlap with each other, there is a problem that they are difficult to read. On the other hand, according to the latter display method, although the display size of each measurement result is limited, each measurement result can be displayed in a separated and independent state, so that there is an advantage that the change state can be easily grasped.

In the conventional zone setting, according to the number of measurement results to be displayed (recorded), the display (record) of each measurement result is manually positioned so that the measurement results do not overlap each other. Was there. For example, in order to display (record) 6 analog signal waveforms and 8 digital signal waveforms in an area of 0 to 100% so as not to overlap each other, there are 14 waveforms to be displayed (recorded). Therefore, if you do a simple calculation, you can divide 100% by 14,
A display (recording) zone of 7% is assigned to each waveform. Then, if an interval of 1% is provided between adjacent waveforms, the relationship between each waveform of the measurement result and the zone position is as follows, These zone position data are manually input.

[0004]

However, since the digital signal waveform only changes between 0 and 1, it is not possible to assign the same display (recording) zone as the analog signal waveform to display (record). It's a waste to use only a part. Therefore, it is desirable to make the digital signal waveform narrower than the zone of the analog signal waveform and allocate that portion to the analog signal waveform, but there is the problem that it takes a lot of time to manually input these correction data. is there.

Further, in order to increase or decrease the waveforms to be displayed (recorded) in the state where the zones are set as shown in FIG. 4, it is necessary to manually input the zone position data of all the waveforms again, which results in operability. Is bad. The present invention solves such a conventional problem, and an object thereof is to display (record) measurement results of a plurality of channels including at least one of an analog signal and a digital signal.
An object of the present invention is to provide a waveform measuring device capable of automatically assigning an appropriate display (recording) zone to each waveform so that a plurality of waveforms can be displayed (recorded) without overlapping each other.

[0006]

A waveform measuring apparatus of the present invention is a waveform measuring apparatus configured to display (record) measurement results of a plurality of channels including at least one of an analog signal and a digital signal. When the display (recording) width of is specified by TW, a display (recording) area calculation unit for calculating the display (recording) area for displaying (recording) so that the measurement results of the signals do not overlap each other is provided by the following equation. The measurement result of each signal assigned to each calculated display (recording) area is displayed (recorded).

WA = (TW-WD * D) / A where A: Number of analog waveforms D: Number of digital waveforms WA: Display (recording) width of one analog waveform WD: Display (recording) width of one digital waveform

[0008]

[Operation] Display (recording) width WA of one analog signal waveform
Is automatically calculated by giving the entire display (recording) width TW, the display (recording) width WD of one digital waveform, the number D of digital waveforms, and the number A of analog waveforms. Is automatically given to the display (recording) control unit as the display (recording) position data.

As a result, each waveform is automatically displayed (recorded) in a predetermined area.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention.
In the figure, reference numeral 2 is a measuring unit, which outputs waveform data of an analog signal or a digital signal applied to the input terminal 1 to the data processing unit 3 as digitized measurement data.
The data processing unit 3 performs various calculations for displaying and recording the measurement data. 4 is a man-machine operation unit,
It consists of a keyboard and operation panel. The man-machine operation unit 4 instructs the data processing unit 3 on a processing method such as a display format. Reference numeral 5 denotes a display (recording) area calculation unit, which calculates a display (recording) area for displaying (recording) measurement results of respective signals in accordance with an automatic setting instruction input from the man-machine operation unit 4 so as not to overlap each other. Then, the calculation result is output to the data processing unit 3. A data storage unit 6 exchanges data with the data processing unit 3. A display unit 7 displays the measurement results of the signals in the designated area so that they do not overlap each other. A printing unit 8 prints and records the measurement results of the signals in the designated area so that the measurement results do not overlap each other.

The display (recording) area calculation unit 5 performs the following calculation processing. That is, for example, when the entire display (recording) width is specified as 0 to 100%, the measurement results of the respective signals are displayed (recorded) by the following equation so that they do not overlap each other.
A display (recording) area for calculating is calculated. WA = (100-WD * D) / A where A: number of analog waveforms D: number of digital waveforms WA: display (recording) width of one analog waveform WD: display (recording) width of one digital waveform 6 When applied to the example of displaying (recording) the analog signal waveform and the eight digital signal waveform in the area of 0 to 100% so as not to overlap each other, A = 6, WD = 3 in the above equation. Substituting D = 8, WA = 1
2 is obtained. Note that WD = 3 is a value in which a 1% interval is provided between adjacent signal waveforms, but the width WA = 12 of the analog signal waveform is a value in which no interval is provided between adjacent signal waveforms. Such an interval between adjacent signal waveforms is indispensable when digital signals are adjacent to each other, but in the case of an analog signal, it may be arbitrarily provided depending on the application. Specifically, when the gap G% is provided, WA-G
To add. The setting example when G = 1 is as follows, These zone position data are automatically set, and the zone is set easily.

In the above embodiment, the whole display (recording)
Although the width TW is specified by 0 to 100% in the example, it may be specified by the length or the number of dots. Further, although the example of the display has been described in the above-mentioned embodiment, it is also effective for print recording of a recorder or the like. Further, in the above embodiment, an example in which an analog signal and a digital signal are mixed has been described, but the present invention can be applied to the case where there is only one kind of analog signal or digital signal, and automatic allocation can be performed as in the case of mixing.

[0013]

As described above, according to the present invention,
When displaying (recording) measurement results of multiple channels containing at least one of analog signals and digital signals, display (record) appropriate for each waveform so that multiple waveforms can be displayed (recorded) without overlapping each other. )
A waveform measuring device that can automatically assign zones can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart showing a flow of operations in FIG.

FIG. 3 is a diagram showing a display (recording) example when there is no zone setting.

FIG. 4 is a diagram showing a display (recording) example when a zone is set.

[Explanation of symbols]

 1 Input Terminal 2 Measuring Section 3 Data Processing Section 4 Man-Machine Operation Section 5 Display (Recording) Area Calculation Section 6 Data Storage Section 7 Display Section 8 Printing Section

Claims (1)

[Claims] 1. A display (recording) of measurement results of a plurality of channels including at least one of an analog signal and a digital signal.
In the waveform measurement device configured to perform, when the entire display (recording) width is specified by TW, the display (recording) area for displaying (recording) the measurement results of each signal so that they do not overlap each other by the following formula A waveform measuring apparatus characterized by comprising a display (recording) area calculating section for calculating, and displaying (recording) the measurement result of each signal assigned to each calculated display (recording) area. WA = (TW-WD * D) / A where A: number of analog waveforms D: number of digital waveforms WA: display (recording) width of one analog waveform WD: display (recording) width of one digital waveform