CN103176018A - Digital oscilloscope and display method for same - Google Patents
Digital oscilloscope and display method for same Download PDFInfo
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- CN103176018A CN103176018A CN2013100612677A CN201310061267A CN103176018A CN 103176018 A CN103176018 A CN 103176018A CN 2013100612677 A CN2013100612677 A CN 2013100612677A CN 201310061267 A CN201310061267 A CN 201310061267A CN 103176018 A CN103176018 A CN 103176018A
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Abstract
The invention discloses a display method for a digital oscilloscope. The display method includes displaying a first waveform selected by a current user in a first display area; displaying a second waveform which represents the storage depth in a second display area; and displaying the proportion occupied by the first waveform in the second waveform. The invention further discloses the digital oscilloscope. In a specific implementation mode, the display method and the digital oscilloscope have the advantages that the first waveform selected by the current user is displayed in the first display area, the second waveform which represents the storage depth is displayed in the second display area, the proportion occupied by the first waveform can be visually and directly displayed in the second waveform, accordingly, a relation between the waveform of a current screen and the waveform which represents the storage depth of an integral memory can be visually observed, and a relation among displayed data in the screen of the oscilloscope at a current time base and the waveform which represents the integral storage depth can be checked conveniently.
Description
Technical field
The application relates to the characteristics of signals tester, relates in particular to a kind of digital oscilloscope display packing and digital oscilloscope.
Background technology
Digital oscilloscope (DSO) is a kind of comprehensive characteristics of signals tester, the time dependent waveform of display visually.Along with the development of digital oscilloscope, the people of use is more and more.
The storage depth of every kind of digital oscilloscope is certain, and storage depth is counting of can gathering of digital oscilloscope collection one frame signal maximum, but the needed Wave data of screen along with the time base, sampling rate variation change.In prior art, when the waveform that shows in needs are known current oscillograph screen occupies the ratio of whole oscillograph storage depth, need to convert by following formula:
The screen waveform counts=time base * grid lattice number/sampling rate
The ratio of screen waveform length and whole storage depth waveform length=screen waveform counts/and whole storage depth waveform counts
By these two ratios that formula calculates, can only reflect the current screen waveform used whole storage depth waveform percent what, can't show intuitively that the current screen waveform has used the relation between whole storage depth waveform.
Summary of the invention
The technical matters that the application will solve is for the deficiencies in the prior art, and a kind of digital oscilloscope display packing and digital oscilloscope are provided.
According to the application's first aspect, the application provides a kind of digital oscilloscope display packing, comprising:
Show in the first viewing area the first waveform that the active user selects;
The second waveform that shows the expression storage depth in the second viewing area;
Show the shared ratio of described the first waveform in described the second waveform.
In said method, described demonstration represents that the second waveform of storage depth comprises:
Draw according to oscillographic storage depth the rectangle that length is L;
Draw the second waveform of expression storage depth in described rectangle inside.
In said method, describedly show that in described the second waveform the shared ratio of described the first waveform comprises:
According to waveform points N, the storage depth D that the active user selects, calculate the length L 1=L of described the first waveform in described rectangle * N/D;
According to the pattern that the active user selects, determine reference position;
Show in described rectangle according to the length L 1 of described reference position with described the first wave mode.
In said method, the described pattern of selecting according to the active user, determine that reference position comprises:
If what the user selected is the run pattern, described reference position is Pos1=(L-L1)/2;
If what the user selected is the Stop pattern, the horizontal level that the user is selected is scaled Pos
0, described reference position is Pos2=(L-L1)/2-Pos
0
In said method, the described shared ratio of waveform that shows that in the waveform of described storage depth described active user selects is to mark to show that with different colours its ratio realizes by the waveform that the active user is selected and the waveform of storage depth.
Second aspect according to the application, the application provides a kind of digital oscilloscope, comprise display module, described display module comprises for the first viewing area that shows the first waveform that the active user selects, also comprise processing module, described display module also comprises the second viewing area for the second waveform that shows the expression storage depth, described processing module is used for calculating described the second waveform in the shared ratio of described the first waveform, and described the second viewing area also is used for showing the shared ratio of described the first waveform at described the second waveform.
Above-mentioned digital oscilloscope, described processing module also is used for drawing in described the second viewing area the rectangle that length is L according to oscillographic storage depth, and drawing described second waveform of expression storage depth in described rectangle inside, described the second waveform is any one in sine wave, square wave, triangular wave or straight line.
Above-mentioned digital oscilloscope, described processing module also are used for the waveform points N, the storage depth D that select according to the active user, calculate the length L 1=L of described the first waveform in described rectangle * N/D; According to the pattern that the active user selects, determine reference position; Described the second display module also is used for showing at described rectangle according to the length L 1 of described reference position with described the first wave mode.
Above-mentioned digital oscilloscope, described processing module also are used for calculating described reference position Pos when the user selects the run pattern
1=(L-L1)/2; When the user selected the Stop pattern, the horizontal level that the user is selected was scaled Pos
0, calculate described reference position Pos
2=(L-L1)/2-Pos
0
Above-mentioned digital oscilloscope, described the second viewing area also are used for the waveform of active user's selection and the waveform of storage depth are marked to show its ratio with different colours.
Owing to having adopted above technical scheme, the beneficial effect that the application possesses is:
In the application's embodiment, owing to being included in the first waveform that active user that the first viewing area shows selects and the second waveform of the expression storage depth that shows in the second viewing area, and can directly show intuitively the ratio that the first waveform is shared in the second waveform, can observe intuitively the waveform of current screen and the waveform Relations Among of whole memory, can check easily oscillograph when current under base, the magnitude relationship between the demonstration data in screen and the waveform of whole storage depth.
Description of drawings
Fig. 1 is the structural representation of the application's digital oscilloscope;
Fig. 2 is a kind of schematic diagram of embodiment of the application's digital oscilloscope;
Fig. 3 is the application's digital oscilloscope display packing process flow diagram in one embodiment;
Fig. 4 is the application's digital oscilloscope display packing process flow diagram in another embodiment.
Embodiment
By reference to the accompanying drawings the application is described in further detail below by embodiment.
Embodiment one:
As shown in Figure 1 and Figure 2, the application's digital oscilloscope, its a kind of embodiment comprises display module and processing module.Display module comprises the first viewing area and the second viewing area, and the first viewing area is used for showing the first waveform of active user's selection, i.e. the observed waveform of user's selection, and the second viewing area is used for showing the second waveform of expression storage depth.Processing module is used for calculating the second waveform in the shared ratio of the first waveform, and the second viewing area also is used for showing the shared ratio of the first waveform at the second waveform.The first viewing area and the second viewing area can be arranged in same display screen, also can be separately positioned in two display screens.
Processing module also can be used for drawing in the second viewing area according to oscillographic storage depth the rectangle that length is L, and draws the second waveform of expression storage depth in rectangle inside.The second waveform can be multiple waveforms, and as any one in sine wave, square wave, triangular wave or straight line, the second waveform can also be the waveform of other kinds.
Processing module also can be used for the waveform points N, the storage depth D that select according to the active user, calculates the length L 1=L of the first waveform in rectangle * N/D; According to the pattern that the active user selects, determine reference position; The second display module also is used for showing at rectangle according to the length L 1 of reference position with the first wave mode.Reference position can have multiple method to set up, is set to reference position as the leftmost side or the rightmost side that can rectangle, and center that also can rectangle is set to the center of the first waveform, both sides expansion to the left and right.
When mind-set two left and right sides were expanded from rectangle when the first waveform, processing module also was used for determining reference position Pos when the user selects the run pattern
1=(L-L1)/2; When the user selected the Stop pattern, the horizontal level that the user is selected was scaled Pos
0, determine reference position Pos
2=(L-L1)/2-Pos
0
The second viewing area also is used for the waveform of active user's selection and the waveform of storage depth are marked to show its ratio with different colours.
Embodiment two:
As shown in Figure 3, the application's digital oscilloscope display packing, its a kind of embodiment comprises the following steps:
Step 302: show the first waveform that the active user selects in the first viewing area.
Step 304: the second waveform that shows the expression storage depth in the second viewing area.
Step 306: show the shared ratio of described the first waveform in described the second waveform.
As shown in Figure 4, the application's digital oscilloscope display packing, its another kind of embodiment comprises the following steps:
Step 402: show the first waveform that the active user selects in the first viewing area.
Step 404: according to oscillographic storage depth, draw the rectangle that length is L in the second viewing area.
Step 406: the second waveform that draws the expression storage depth in rectangle inside.The second waveform can be multiple waveforms, and as any one in sine wave, square wave, triangular wave or straight line, the second waveform can also be the waveform of other kinds.
Step 408: waveform points N, storage depth D according to the active user selects, calculate the length of the first waveform in rectangle, the length L 1=L of the first waveform in rectangle * N/D.
Step 410: according to the pattern that the active user selects, determine reference position.Reference position can have multiple method to set up, is set to reference position as the leftmost side or the rightmost side that can rectangle, and center that also can rectangle is set to the center of the first waveform, both sides expansion to the left and right.
Step 412: show in rectangle according to the length L 1 of reference position with the first wave mode.
When mind-set two left and right sides were expanded from rectangle when the first waveform, if user's selection is the RUN pattern, reference position was Pos1=(L-L1)/2; If what the user selected is the STOP pattern, the horizontal level that the user is selected is scaled Pos
0, reference position is Pos2=(L-L1)/2-Pos
0In the present embodiment, can demonstrate the current screen waveform and which position to bring into use the waveform of whole storage depth from.
Step 414: show the shared ratio of waveform that the active user selects in the waveform of storage depth.Show the shared ratio of the first waveform that the active user selects in the waveform of storage depth, can be by the first waveform of active user's selection and the second waveform of storage depth are marked to show with different colours, to show its ratio.As being set to a kind of color by the second waveform, the first waveform and the overlapping part of the second waveform are set to another kind of color, or with the first waveform and the second waveform overlapping be partially filled coloring grounding, to show intuitively the second waveform shared ratio in storage depth.
in a kind of embodiment of the application, suppose in the digital oscilloscope of a certain model, the maximum storage degree of depth of this model is 20K, the lcd screen size of this model is that 320 * 240pixel(320 is width, the 240th, height), the employing upper left corner is true origin, the waveform viewing area of this model is that 300 * 200(300 is width, the 200th, height), the upper left corner coordinate of waveform viewing area is (10, 20), grid in wave regions is that 12 * 8(12 is the transverse grid number, 8 is the longitudinal grid number), suppose so under the oscillograph of this model, 1us the time base under, the sampling rate that has 500M, be that 2ns gathers a sampled point, counting that so current the first waveform shows is 1us * 12 lattice/2ns=6K.The waveform of so current demonstration and the proportionate relationship of whole storage depth are:
Rate=6K/20K；
In current digital oscilloscope, suppose that we are placed on the second rectangle on (60,5) coordinate, wide by 200, high by 10.Length 200 corresponding stored degree of depth 20K so, we draw waveform length L=200 corresponding to 6K * 6K/20K=60 pixel in 200 rectangle so.
If current is the run state, we draw the waveform of current 6K proportion with 60 middle pixels, namely the starting point of this waveform is (200 – 60)/2=70, namely relatively with after the original point of the second rectangle begin to draw the corresponding waveform of 6K on the x coordinate of 70 for starting point, length is 60 pixels.
If current is STOP, user's level 1us that moved to right, the pixel of 1us skew is:
The waveform sampling of 1us length is counted=the 1us/2ns=500 sampled point
The length that 1us is offset is=a 500*200/20K=5 point.
The starting point of stop is that starting point under the motion of run dress adds 5, is namely to be starting point on 75 coordinate, with respect to the second rectangle.As scheming: (figure is in the viso file).Move to left in like manner under Stop.
According to above gained coordinate, we just can draw the proportionate relationship of corresponding 6K waveform in the second rectangle.
Above content is the further description of the application being done in conjunction with concrete embodiment, can not assert that the application's concrete enforcement is confined to these explanations.For the application person of an ordinary skill in the technical field, under the prerequisite that does not break away from the application's design, can also make some simple deduction or replace.
Claims (10)
1. a digital oscilloscope display packing, is characterized in that, comprising:
Show in the first viewing area the first waveform that the active user selects;
The second waveform that shows the expression storage depth in the second viewing area;
Show the shared ratio of described the first waveform in described the second waveform.
2. digital oscilloscope display packing as claimed in claim 1, is characterized in that, described demonstration represents that the second waveform of storage depth comprises:
Draw according to oscillographic storage depth the rectangle that length is L;
Draw the second waveform of expression storage depth in described rectangle inside.
3. digital oscilloscope display packing as claimed in claim 2, is characterized in that, describedly shows that in described the second waveform the shared ratio of described the first waveform comprises:
According to waveform points N, the storage depth D that the active user selects, calculate the length L 1=L of described the first waveform in described rectangle * N/D;
According to the pattern that the active user selects, determine reference position;
Show in described rectangle according to the length L 1 of described reference position with described the first wave mode.
4. digital oscilloscope display packing as claimed in claim 3, is characterized in that, the described pattern of selecting according to the active user determines that reference position comprises:
If what the user selected is the run pattern, described reference position is Pos1=(L-L1)/2;
If what the user selected is the Stop pattern, the horizontal level that the user is selected is scaled Pos
0, described reference position is Pos2=(L-L1)/2-Pos
0
5. digital oscilloscope display packing as described in any one in claim 1 to 4, it is characterized in that, the described shared ratio of waveform that shows that in the waveform of described storage depth described active user selects is to mark to show that with different colours its ratio realizes by the waveform that the active user is selected and the waveform of storage depth.
6. digital oscilloscope, comprise display module, described display module comprises for the first viewing area that shows the first waveform that the active user selects, it is characterized in that, also comprise processing module, described display module also comprises the second viewing area for the second waveform that shows the expression storage depth, and described processing module is used for calculating described the second waveform in the shared ratio of described the first waveform, and described the second viewing area also is used for showing the shared ratio of described the first waveform at described the second waveform.
7. digital oscilloscope as claimed in claim 6, it is characterized in that, described processing module also is used for drawing in described the second viewing area the rectangle that length is L according to oscillographic storage depth, and drawing described second waveform of expression storage depth in described rectangle inside, described the second waveform is any one in sine wave, square wave, triangular wave or straight line.
8. digital oscilloscope as claimed in claim 7, is characterized in that, described processing module also is used for the waveform points N, the storage depth D that select according to the active user, calculates the length L 1=L of described the first waveform in described rectangle * N/D; According to the pattern that the active user selects, determine reference position; Described the second display module also is used for showing at described rectangle according to the length L 1 of described reference position with described the first wave mode.
9. digital oscilloscope as claimed in claim 8, is characterized in that, described processing module also is used for calculating described reference position Pos when the user selects the run pattern
1=(L-L1)/2; When the user selected the Stop pattern, the horizontal level that the user is selected was scaled Pos
0, calculate described reference position Pos
2=(L-L1)/2-Pos
0
10. digital oscilloscope as described in any one in claim 6 to 9, is characterized in that, described the second viewing area also is used for the waveform of active user's selection and the waveform of storage depth are marked to show its ratio with different colours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061267.7A CN103176018B (en) | 2013-02-27 | 2013-02-27 | Digital oscilloscope display packing and digital oscilloscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061267.7A CN103176018B (en) | 2013-02-27 | 2013-02-27 | Digital oscilloscope display packing and digital oscilloscope |
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| Publication Number | Publication Date |
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| CN103176018A true CN103176018A (en) | 2013-06-26 |
| CN103176018B CN103176018B (en) | 2016-08-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI642955B (en) * | 2018-04-20 | 2018-12-01 | 艾訊股份有限公司 | Electronic device for generating waveform file and method thereof |
| CN109470903A (en) * | 2018-10-31 | 2019-03-15 | 福建利利普光电科技有限公司 | A kind of each channel twin voltage gear oscillograph and its display methods |
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| JPH0599965A (en) * | 1991-10-14 | 1993-04-23 | Nec Corp | Pulse wave shape measuring system |
| JPH0798333A (en) * | 1993-09-29 | 1995-04-11 | Sony Corp | Wave-form judging device |
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Patent Citations (5)
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| JPH0510977A (en) * | 1991-07-02 | 1993-01-19 | Hioki Ee Corp | Indication method of enlargement wave form on screen of wave form measurement device |
| JPH0599965A (en) * | 1991-10-14 | 1993-04-23 | Nec Corp | Pulse wave shape measuring system |
| JPH0798333A (en) * | 1993-09-29 | 1995-04-11 | Sony Corp | Wave-form judging device |
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| CN101324640A (en) * | 2008-05-05 | 2008-12-17 | 电子科技大学 | Double-time base digital storage oscillograph |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI642955B (en) * | 2018-04-20 | 2018-12-01 | 艾訊股份有限公司 | Electronic device for generating waveform file and method thereof |
| CN109470903A (en) * | 2018-10-31 | 2019-03-15 | 福建利利普光电科技有限公司 | A kind of each channel twin voltage gear oscillograph and its display methods |
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|---|---|
| CN103176018B (en) | 2016-08-03 |
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Address after: 518000 Guangdong Province, Baoan District, Baoan District, Xin'an Street, Xingdong Community, 68 District, Antongda Industrial Factory Area, 4 factories, 3 floors, 5 office buildings, 1-3 floors Patentee after: Shenzhen dingyang Technology Co., Ltd Address before: Shenzhen City, Guangdong province Baoan District 518000 District 68 road left three Antongda Industrial Park, 4 floor Patentee before: Shenzhen Siglent Technologies Co., Ltd. |
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