CN104502657A - Digital waveform control module and digital waveform control method - Google Patents
Digital waveform control module and digital waveform control method Download PDFInfo
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Abstract
The invention discloses a digital waveform control module. The digital waveform control module comprises a signal conditioning module, a waveform acquisition module, waveform bitmap maintenance module and a display in sequential connection. An output end of the waveform bitmap maintenance module is connected with a histogram statistic and waveform feature extraction module, and an input keyboard serving as human-machine operation interface of the digital waveform control module is connected with a master controller. The invention further discloses a digital waveform control method. The histogram statistic and waveform feature extraction module is used for statistics and analysis of horizontal and vertical histograms of waveforms displayed by the digital waveform control module to extract abundant effective information included vertical feature points, horizontal feature points, synchronous trigger range and trigger feature point positions, positions of the waveform feature point are directly reached in waveform control of setting vertical scaling reference points, horizontal moving waveforms, vertical moving waveforms, trigger level and the like, and accordingly higher quickness and accuracy in operation are achieved.
Description
Technical field
The present invention relates to electronic digital testing instrument device field, particularly relate to a kind of digital waveform manipulation module and waveform method of operating thereof of the electronic instrument with digital waveform display.
Background technology
In the electronic instrument shown with digital waveform, for general digital oscilloscope, carry out waveform observation in order to more convenient, generally carry out waveform manipulation by the input key on oscilloscope panel and spinning roller.The mode of basic manipulation waveform is at level, vertical both direction scaling or mobile waveform, and arranges suitable triggering level position to obtain stable waveform display on the display screen.
Digital oscilloscope waveform display area is generally divided into horizontal direction 10 large lattice, vertical direction 8 large lattice.
Every lattice signal magnitude of horizontal direction was measured with " second/lattice ", generally adjusted waveform every lattice signal magnitude in the horizontal direction by " level sensitivity adjusting knob "; For convenience of describing, below the operation of adjustment waveform every lattice size is in the horizontal direction called " horizontal scaling ".
Every lattice signal magnitude of vertical direction is measured with " volt/lattice ", and general pass through " vertical sensitivity adjusting knob " adjusts waveform every lattice signal magnitude in the vertical direction; For convenience of describing, below the operation of adjustment waveform every lattice size is in the vertical direction called " vertical scaling ".
Each point coordinate in the horizontal direction on display waveform was measured with its time interval relative to trigger point, and the time of trigger point is 0 second.There is a scaling reference point when carrying out " horizontal scaling ", be called horizontal scaling reference point, centered by this reference point, carry out horizontal scaling; Generally horizontal scaling reference point is arranged on waveform screen center, distance waveform screen left hand edge one lattice place, or apart from waveform screen right hand edge one lattice place.If want with this waveform of the horizontal scaling of certain time point on certain waveform, just need the horizontal scaling reference point place first this time point of waveform being moved to display screen, then executive level scaling.
The horizontal level of display waveform on screen represented with the time interval of trigger point relative to horizontal scaling reference point, the time at horizontal scaling reference point place is called the horizontal delay time, and the fixing step pitch method of general employing adjusts waveform display position in the horizontal direction by " horizontal delay adjusting knob ".
Each point coordinate in the vertical direction on display waveform is measured with its voltage relative to ground level, and the voltage of ground level is 0 volt.There is a scaling reference point when carrying out " vertical scaling ", be called vertical scaling reference point, centered by this reference point, carry out vertical scaling.There are two kinds of vertical scaling reference point set-up modes in prior art: screen fixing display point mode and waveform fixed voltage point mode.
Display point mode fixed by screen is vertical centre place waveform scaling reference point being fixedly installed on waveform screen, when needs carry out scaling on waveform centered by some electrical voltage points, just this point is moved to the vertical centre place of waveform display screen curtain.When the multiple waveform of display side by side up and down in waveform display area, if want with this waveform of the vertical scaling of certain electrical voltage point on certain waveform, just need the vertical centre the place first above-mentioned electrical voltage point of this waveform being moved to display screen, then perform vertical scaling, also will move this waveform after vertical scaling may be completed to original display position.Under screen fixing display point mode, each waveform is called the offset voltage of waveform at the voltage at the vertical centre place of waveform screen.
Waveform fixed voltage point mode is that vertical scaling reference point is fixedly installed on waveform a certain certain electric pressure point place, is generally to be automatically located in no-voltage position after performing Lookup protocol instruction.Because the vertical voltage scope of unlike signal may vary, need the position of scaling may not be again in signal zero voltage location, prior art adopts fixing step pitch method to adjust vertical scaling reference point to the waveform voltage position needed.
The operation of vertical mobile waveform is by the vertical display position of change waveform on screen, and general employing fixes step pitch method by vertical shift adjusting knob adjustment waveform display position in the vertical direction.
Triggering level adjustment operation will change the comparative level size compared with channel input signal, only have when triggering level be positioned at channel input signal signal voltage have a scope faster changed time, stable trigger pip can be produced, make the display waveform on waveform screen to stablize display.The position of step pitch method by triggering level adjusting knob adjustment triggering level is fixed in general employing.
For waveform observation, what tester paid close attention to usually is the position comprising more rich effective information in waveform, is exactly specifically that waveform edge is neighbouring, vertical direction is near waveform platform in the horizontal direction.In the activity of observation waveform, the operation such as scaling waveform, mobile waveform, test waveform often launches around these waveform key positions.Navigate to a waveform key position, generally adopt fixing step pitch method in current techniques, less, the mobile efficiency of unit step pitch of fixing step pitch method is low, and manual adjustments mode is not easy to be accurately positioned in waveform key point.Along with screen size constantly become greatly, screen resolution improves constantly, waveform number that display screen is observed is on the increase, the adjustment of correlation parameter is also convenient more and more not.
Therefore need badly and provide a kind of novel digital manipulation method to solve the problems referred to above.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of digital waveform operational module and method thereof, and operator can be made to realize waveform operation object quickly and accurately by less operation steps.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of digital waveform manipulation module, comprise the Signal-regulated kinase be connected successively, waveform acquisition module, waveform bitmap maintenance module, display, the input end input signal of Signal-regulated kinase, an output terminal connects trigger control circuit, the output terminal of trigger control circuit connects a time base circuit, the output terminal of time base circuit connects waveform acquisition module, waveform bitmap maintenance module and waveform bit image memory are interconnected, one output terminal of waveform bitmap maintenance module is connected with statistics with histogram and waveshape feature abstraction module, described digital waveform manipulation module also comprises a master controller, one end of master controller connects the input keyboard as described digital waveform manipulation module man machine operation interface, the other end of master controller is connected with each several part of digital waveform manipulation module.
In a preferred embodiment of the present invention, described input keyboard comprises universal input knob, triggering level adjusting knob, vertical shift adjusting knob, vertical sensitivity adjusting knob, horizontal delay adjusting knob, level sensitivity adjusting knob.In order to organically blend with the fixing step pitch catanator of current techniques, for waveform method of operating of the present invention provides a set of independently man machine operation interface.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of digital waveform method of operating, comprise the following steps:
Waveform in the waveform bit image memory generated through the process of waveform bitmap maintenance module by statistics with histogram and waveshape feature abstraction module analysis shows data, calculate the waveform character point of digital waveform operational module Zhong Ge road display waveform, it comprises vertical features point, synchronous trigger range, triggered characteristic point, horizontal properties point, and master controller utilizes the waveform character point response input keyboard calculated to handle the adjustment of digital waveform correlation parameter and waveform;
The computing method of waveform character point are as follows:
(1) add up waveform voltage histogram: for the Data-Statistics waveform voltage histogram of the data point of each display waveform trace within the scope of waveform display window, the voltage histogram is smoothly obtained to the smoothing filtering of waveform voltage histogram;
(2) waveform voltage position of platform is calculated: the voltage histogram after analytical smoothing, in voltage histogram, low level is waveform voltage platform to the region between high level and high level to low level two hopping edges, calculate the mid point of each waveform voltage platform, as waveform voltage position of platform;
(3) waveform vertical features point is extracted: the voltage histogram after analytical smoothing obtains maximum point position, smallest point position, the often mid point of adjacent two waveform voltage platforms and the waveform voltage position of platform of each waveform, the mid point of whole waveform, is defined as waveform vertical features point;
(4) synchronous trigger range is calculated: calculate the scope between each adjacent waveform voltage platform, as synchronous trigger range;
(5) triggered characteristic point is calculated: calculate 10%, 50%, 90% 3 location point in synchronous trigger range, as triggered characteristic point;
(6) waveform time histogram is added up: for the waveform time histogram in each waveform voltage flat roof area of Data-Statistics of the data point within the scope of each waveform voltage platen window;
(7) calculate waveform horizontal properties point: the position, each hopping edge of each waveform voltage platform in acquisition waveforms time histrogram, get the mid point of often adjacent two hopping edges, as horizontal properties point.
In a preferred embodiment of the present invention, utilize the waveform method of operating of waveform vertical features point quick-setting waveform vertical scaling reference point: switching vertical scaling reference point locations by input keyboard is one of each waveform vertical features point, when the waveform change shown cause vertical scaling reference point locations not included in waveform indication range time, automatically immediate waveform vertical features point position in adjustment waveform vertical scaling reference point locations to waveform.
In a preferred embodiment of the present invention, utilize the waveform method of operating of waveform vertical features point quick adjustment waveform upright position: during vertical mobile waveform, the waveform of current vertical scaling reference point locations is moved to the screen integer lattice position of the next digital waveform operational module of moving direction.
In a preferred embodiment of the present invention, utilize synchronous trigger range and triggered characteristic point that the waveform method of operating of triggering level is set: the Lookup protocol key of operation input keyboard is when carrying out the Lookup protocol of digital waveform operational module, triggering level is set close on the triggered characteristic point at waveform center; When operating the triggering level of input keyboard manual adjustments digital waveform operational module, set gradually triggering level on each triggered characteristic point of moving direction; When master controller detects that triggering level exceeds synchronous trigger range, automatically adjust triggering level close on the triggered characteristic point at waveform center by digital waveform operational module.
In a preferred embodiment of the present invention, utilize the waveform method of operating of waveform horizontal properties point quick adjustment waveform horizontal level: the horizontal scaling reference point of waveform is set at the place of screen center of digital waveform operational module or apart from screen left hand edge one lattice place or apart from screen right hand edge one lattice place, when moving horizontally waveform, set gradually horizontal scaling reference point locations on the time of each horizontal properties point of moving direction.When horizontal scaling reference point locations has been in last horizontal properties point position of adjustment direction, when again adjusting waveform skew, by a lattice step distance adjustment on the screen of digital waveform operational module.As special case, for delay time-base waveform, when postpone in window time-base waveform move horizontally direction do not exist waveform horizontal properties point time, in window, main time-base waveform finds the next waveform horizontal properties point of moving direction, postpones the horizontal scaling reference point locations of time-base waveform using its corresponding time in window.
The invention has the beneficial effects as follows: the present invention is by setting up a kind of digital waveform operational module, comprise from waveform display extracting data and comparatively enrich and the position of the waveform character of effective information point, described waveform operation method then utilizes this waveform character point position, required waveform key point position is directly arrived when operating the electronic instrument with digital waveform display, quick and convenient operation, precise and high efficiency is located.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of digital waveform manipulation module one of the present invention preferred embodiment;
Fig. 2 is the structural representation of described input keyboard;
Fig. 3 is the process flow diagram that described statistics with histogram and waveshape feature abstraction module calculate waveform character point methods;
Fig. 4 is the schematic diagram that described statistics with histogram and waveshape feature abstraction module calculate waveform character point;
Fig. 5 is the screen display waveform schematic diagram of digital waveform operational module;
Fig. 6 is that dual time base waveform moves horizontally mode schematic diagram;
In accompanying drawing, the mark of each parts is as follows: 21, universal input knob, 22, triggering level adjusting knob, 23, vertical shift adjusting knob, 24, vertical sensitivity adjusting knob, 25, horizontal delay adjusting knob, 26, level sensitivity adjusting knob, 41, display waveform trace, 42, waveform voltage histogram, 43, waveform voltage histogram after level and smooth, 44, waveform voltage flat roof area line, 441, 442, waveform voltage platform, 45, waveform vertical features point, 46, waveform time histogram, 47, waveform horizontal properties point, 51, the vertical scaling reference point of waveform, 52, the horizontal scaling reference point of waveform.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:
A kind of digital waveform manipulation module, comprise the Signal-regulated kinase be connected successively, waveform acquisition module, waveform bitmap maintenance module, display, the input end input signal of Signal-regulated kinase, an output terminal connects trigger control circuit, the output terminal of trigger control circuit connects a time base circuit, the output terminal of time base circuit connects waveform acquisition module, waveform bitmap maintenance module and waveform bit image memory are interconnected, one output terminal of waveform bitmap maintenance module is connected with statistics with histogram and waveshape feature abstraction module, described digital waveform manipulation module also comprises a master controller, one end of master controller connects the input keyboard as described digital waveform manipulation module man machine operation interface, the other end of master controller is connected with each several part of digital waveform manipulation module.
Signal-regulated kinase, trigger control module, time base circuit are the control circuits that specific implementation waveform is handled.Signal-regulated kinase control is to the vertical scaling of input signal and vertical shift, input signal is compared generation trigger pip with triggering level by trigger control circuit, waveform acquisition the window's position (corresponding to horizontal scaling gear and horizontal offset positions) that it is reference point with the time point that trigger pip is corresponding that time base circuit controls, waveform acquisition module is carried out analog-to-digital conversion to signal and carry out waveform acquisition under the control of time base circuit, waveform display data after collection are stored in waveform bit image memory after the process of waveform bitmap maintenance module, statistics with histogram and waveshape feature abstraction module calculate waveform character point according to the waveform data bitmap in waveform bit image memory, result of calculation is utilized by master controller, main controller controls input keyboard is to the manipulation of each display waveform.Master controller controls the programming of other each several part circuit simultaneously.
In order to organically blend with the fixing step pitch catanator of prior art, described digital waveform manipulation module provides a set of independently man machine operation interface for waveform method of operating of the present invention---input keyboard.Described input keyboard comprises universal input knob 21, triggering level adjusting knob 22, vertical shift adjusting knob 23, vertical sensitivity adjusting knob 24, horizontal delay adjusting knob 25, level sensitivity adjusting knob 26.As shown in Figure 2, each adjusting knob all can adopt inside and outside nested Double-knob mode, and outside for waveform method of operating of the present invention, inner regulates for traditional fixing step pitch; Also can adopt the Single button of band button, be switched by operating between waveform method of operating of the present invention and traditional fixing step pitch adjustment of button on each knob.
Based on the above digital waveform manipulation module, present invention also offers a kind of digital waveform method of operating, comprise the following steps:
Waveform in the waveform bit image memory generated through the process of waveform bitmap maintenance module by statistics with histogram and waveshape feature abstraction module analysis shows data, calculate the waveform character point of digital waveform operational module Zhong Ge road display waveform, it comprises vertical features point, synchronous trigger range, triggered characteristic point, horizontal properties point, and master controller utilizes the waveform character point response input keyboard calculated to handle the adjustment of digital waveform correlation parameter and waveform;
Refer to Fig. 3 and Fig. 4, the computing method of waveform character point are as follows:
(1) add up waveform voltage histogram: for Data-Statistics waveform voltage Nogata Figure 42 of the data point of each display waveform trace 41 within the scope of waveform display window, the fluctuation little to the smoothing filtering of waveform voltage Nogata Figure 42 obtains the voltage histogram 43 smoothly;
(2) calculate waveform voltage position of platform: the voltage histogram 43 after analytical smoothing, in voltage histogram 43, low level is waveform voltage platform 441,442 to the region between high level and high level to low level two hopping edges, is designated as A, B; Calculate the mid point of each waveform voltage platform, as waveform voltage position of platform, be designated as a, b;
(3) extract waveform vertical features point 45: the voltage histogram 43 after analytical smoothing obtain maximum point position (shown in figure c), smallest point position (shown in figure d), often the mid point of adjacent two waveform voltage platforms (shown in figure e) and the waveform voltage position of platform of each waveform (a shown in figure, b), the mid point of whole waveform, is defined as waveform vertical features point 45;
(4) synchronous trigger range is calculated: calculate the scope between each adjacent waveform voltage platform, as synchronous trigger range (shown in figure C);
(5) triggered characteristic point is calculated: calculate 10%, 50%, 90% 3 location point in synchronous trigger range, as triggered characteristic point;
(6) waveform time Nogata Figure 46 is added up: for the waveform time Nogata Figure 46 in each waveform voltage flat roof area of Data-Statistics of the data point in each waveform voltage platen window scope 441 and 442;
(7) waveform horizontal properties point 47 is calculated: the position, each hopping edge of each waveform voltage platform in acquisition waveforms time histrogram 46, get the mid point of often adjacent two hopping edges, as horizontal properties point 47, as the screen position of 47 corresponding each short vertical lines in Fig. 4.
Above-mentioned basic waveform method of operating is utilized to describe the concrete conventional waveform method of operating of digital waveform operational module below:
(1) the waveform method of operating of waveform vertical features point 45 quick-setting waveform vertical scaling reference point 51 is utilized: switching vertical scaling reference point 51 position by input keyboard is one of each waveform vertical features point 45, when the waveform change shown cause vertical scaling reference point 51 position not included in waveform indication range time, automatically immediate waveform vertical features point 45 position in adjustment waveform vertical scaling reference point 51 position to waveform.As shown in P in Fig. 5, the vertical scaling reference point 51 of this waveform is arranged on the vertical features point 45 of waveform maximum point position, and as shown in Q in Fig. 5, the vertical scaling reference point 51 of this waveform is arranged on the vertical features point 45 of smallest point position;
(2) utilize the waveform method of operating of waveform vertical features point 45 quick adjustment waveform upright position: during vertical mobile waveform, the waveform of current vertical scaling reference point 51 position is moved to the screen integer lattice position of the next digital waveform operational module of moving direction.The unit step pitch of the vertical movement of fixing step pitch method traditional in prior art is little, compared with prior art, the present invention arranges the vertical scaling reference point 51 of waveform on the waveform character point basis calculated, with the vertical scaling reference point 51 of waveform for moving reference, waveform can be moved quickly into desired location, navigate to rapidly required manipulation key point in waveform;
(3) utilize synchronous trigger range and triggered characteristic point that the waveform method of operating of triggering level is set: the Lookup protocol key of operation input keyboard is when carrying out the Lookup protocol of digital waveform operational module, triggering level is set close on the triggered characteristic point at waveform center; When operating the triggering level of input keyboard manual adjustments digital waveform operational module, set gradually triggering level on each triggered characteristic point of moving direction; When master controller detects that triggering level exceeds synchronous trigger range, automatically adjust triggering level close on the triggered characteristic point at waveform center by digital waveform operational module.
(4) the waveform method of operating of waveform horizontal properties point 47 quick adjustment waveform horizontal level is utilized: the horizontal scaling reference point 52 of waveform is set at the place of screen center of digital waveform operational module or apart from screen left hand edge one lattice place or apart from screen right hand edge one lattice place, when moving horizontally waveform, set gradually horizontal scaling reference point 52 position on the time of each horizontal properties point 47 of moving direction.When horizontal scaling reference point 52 position has been in last horizontal properties point 47 position of adjustment direction, when again adjusting waveform skew, by a lattice step distance adjustment on the screen of digital waveform operational module.As a special case, for delay time-base waveform, as in Fig. 6 (a) and Fig. 6 (b), upper waveform window is main time-base waveform window, lower waveform window is for postponing time-base waveform window, and the waveform wherein in delay time-base waveform window is that the level of waveform in the rectangle frame in main time-base waveform window amplifies display.Fig. 6 (a) Suo Shi waveform basis on, when moving horizontally below Delay time base window waveform to the right, because postponing the horizontal scaling reference point of time-base waveform, (in figure 111, the corresponding time is 0s; Corresponding Far Left edge of going here and there waveform from left side number the 4th in main time-base waveform) left side (in screen ranges) do not had waveform horizontal properties point, then (corresponding main time-base waveform is from the rightmost edge of left side number the 3rd string waveform for the direct next waveform horizontal properties point that moving direction (left) in base window time main is corresponding,-22.56ms the moment) be placed on the horizontal scaling reference point locations (in figure 112 postponing time-base waveform window, the corresponding time is-22.56ms) on, after mobile as shown in Fig. 6 (b).
Described digital waveform method of operating is based on following principle of work: each to vertical for current form scaling reference point, horizontal scaling reference point, triggering level position and waveform vertical, horizontal properties point is stored in statistics with histogram and waveshape feature abstraction module by described digital waveform operational module, carries out following detection for automatically comparing: whether vertical scaling reference point locations is included in waveform indication range, triggering level whether within the scope of triggering synchronous, waveform moves horizontally direction and whether there is not horizontal properties point.Testing result passes through the master controller of interrupt mode number of notifications character waveform operational module, to determine that next step operates.
The present invention is by setting up a kind of digital waveform operational module, comprise from waveform display extracting data and comparatively enrich and the position of the waveform character of effective information point, described waveform operation method then utilizes this waveform character point position, required waveform key point position is directly arrived when operating the electronic instrument with digital waveform display, quick and convenient operation, precise and high efficiency is located.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a digital waveform manipulation module, comprise the Signal-regulated kinase be connected successively, waveform acquisition module, waveform bitmap maintenance module, display, the input end input signal of Signal-regulated kinase, an output terminal connects trigger control circuit, the output terminal of trigger control circuit connects a time base circuit, the output terminal of time base circuit connects waveform acquisition module, waveform bitmap maintenance module and waveform bit image memory are interconnected, it is characterized in that, one output terminal of waveform bitmap maintenance module is connected with statistics with histogram and waveshape feature abstraction module, described digital waveform manipulation module also comprises a master controller, one end of master controller connects the input keyboard as described digital waveform manipulation module man machine operation interface, the other end of master controller is connected with each several part of digital waveform manipulation module.
2. digital waveform manipulation module according to claim 1, it is characterized in that, described input keyboard comprises universal input knob, triggering level adjusting knob, vertical shift adjusting knob, vertical sensitivity adjusting knob, horizontal delay adjusting knob, level sensitivity adjusting knob.
3., based on the waveform method of operating of digital waveform manipulation module described in claim 1, comprise the following steps:
Waveform in the waveform bit image memory generated through the process of waveform bitmap maintenance module by statistics with histogram and waveshape feature abstraction module analysis shows data, calculate the waveform character point of digital waveform operational module Zhong Ge road display waveform, it comprises vertical features point, synchronous trigger range, triggered characteristic point, horizontal properties point, and master controller utilizes the waveform character point response input keyboard calculated to handle the adjustment of digital waveform correlation parameter and waveform;
The computing method of waveform character point are as follows:
(1) add up waveform voltage histogram: for the Data-Statistics waveform voltage histogram of the data point of each display waveform trace within the scope of waveform display window, the voltage histogram is smoothly obtained to the smoothing filtering of waveform voltage histogram;
(2) waveform voltage position of platform is calculated: the voltage histogram after analytical smoothing, in voltage histogram, low level is waveform voltage platform to the region between high level and high level to low level two hopping edges, calculate the mid point of each waveform voltage platform, as waveform voltage position of platform;
(3) waveform vertical features point is extracted: the voltage histogram after analytical smoothing obtains maximum point position, smallest point position, the often mid point of adjacent two waveform voltage platforms and the waveform voltage position of platform of each waveform, the mid point of whole waveform, is defined as waveform vertical features point;
(4) synchronous trigger range is calculated: calculate the scope between each adjacent waveform voltage platform, as synchronous trigger range;
(5) triggered characteristic point is calculated: calculate 10%, 50%, 90% 3 location point in synchronous trigger range, as triggered characteristic point;
(6) waveform time histogram is added up: for the waveform time histogram in each waveform voltage flat roof area of Data-Statistics of the data point within the scope of each waveform voltage platen window;
(7) calculate waveform horizontal properties point: the position, each hopping edge of each waveform voltage platform in acquisition waveforms time histrogram, get the mid point of often adjacent two hopping edges, as horizontal properties point.
4. digital waveform method of operating according to claim 3, it is characterized in that, utilize the waveform method of operating of waveform vertical features point quick-setting waveform vertical scaling reference point: switching vertical scaling reference point locations by input keyboard is one of each waveform vertical features point, when the waveform change shown cause vertical scaling reference point locations not included in waveform indication range time, automatically immediate waveform vertical features point position in adjustment waveform vertical scaling reference point locations to waveform.
5. digital waveform method of operating according to claim 4, it is characterized in that, utilize the waveform method of operating of waveform vertical features point quick adjustment waveform upright position: during vertical mobile waveform, the waveform of current vertical scaling reference point locations is moved to the screen integer lattice position of the next digital waveform operational module of moving direction.
6. digital waveform method of operating according to claim 3, it is characterized in that, utilize synchronous trigger range and triggered characteristic point that the waveform method of operating of triggering level is set: the Lookup protocol key of operation input keyboard is when carrying out the Lookup protocol of digital waveform operational module, triggering level is set close on the triggered characteristic point at waveform center; When operating the triggering level of input keyboard manual adjustments digital waveform operational module, set gradually triggering level on each triggered characteristic point of moving direction; When master controller detects that triggering level exceeds synchronous trigger range, automatically adjust triggering level close on the triggered characteristic point at waveform center by digital waveform operational module.
7. digital waveform method of operating according to claim 3, it is characterized in that, utilize the waveform method of operating of waveform horizontal properties point quick adjustment waveform horizontal level: the horizontal scaling reference point of waveform is set at the place of screen center of digital waveform operational module or apart from screen left hand edge one lattice place or apart from screen right hand edge one lattice place, when moving horizontally waveform, set gradually horizontal scaling reference point locations on the time of each horizontal properties point of moving direction.When horizontal scaling reference point locations has been in last horizontal properties point position of adjustment direction, when again adjusting waveform skew, by a lattice step distance adjustment on the screen of digital waveform operational module.
8. digital waveform method of operating according to claim 7, it is characterized in that, for delay time-base waveform, when postpone in window time-base waveform move horizontally direction do not exist waveform horizontal properties point time, in window, main time-base waveform finds the next waveform horizontal properties point of moving direction, postpones the horizontal scaling reference point locations of time-base waveform using its corresponding time in window.
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| US20010001137A1 (en) * | 1997-05-27 | 2001-05-10 | Alexander Jay A. | Graphical system and method for automatically scaling waveforms in a signal measurement system |
| CN101413968A (en) * | 2008-09-30 | 2009-04-22 | 中国电子科技集团公司第四十一研究所 | Digital oscilloscope and method for controlling display waveform |
| CN101726644A (en) * | 2009-11-20 | 2010-06-09 | 电子科技大学 | Digital storage oscilloscope with functions of waveform fast location and zooming |
| CN102707114A (en) * | 2012-06-13 | 2012-10-03 | 郑州麦科信电子技术有限公司 | Waveform control method of digital oscilloscope |
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| US20010001137A1 (en) * | 1997-05-27 | 2001-05-10 | Alexander Jay A. | Graphical system and method for automatically scaling waveforms in a signal measurement system |
| CN101413968A (en) * | 2008-09-30 | 2009-04-22 | 中国电子科技集团公司第四十一研究所 | Digital oscilloscope and method for controlling display waveform |
| CN101726644A (en) * | 2009-11-20 | 2010-06-09 | 电子科技大学 | Digital storage oscilloscope with functions of waveform fast location and zooming |
| CN102707114A (en) * | 2012-06-13 | 2012-10-03 | 郑州麦科信电子技术有限公司 | Waveform control method of digital oscilloscope |
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