CN104502657B - Digital waveform manipulation module and its method - Google Patents
Digital waveform manipulation module and its method Download PDFInfo
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Abstract
The invention discloses a kind of digital waveform manipulation module, including the Signal-regulated kinase, waveform acquisition module, waveform bitmap maintenance module, the display that are sequentially connected, the output end of waveform bitmap maintenance module is connected with statistics with histogram and waveshape feature abstraction module, and the input keyboard as the digital waveform manipulation module man machine operation interface is connected with a master controller；Also disclose a kind of digital waveform method of operating, the horizontal and vertical histogrammic method that statistics with histogram and waveshape feature abstraction module pass through statistics and analysis digital waveform operation module display waveform, extract the vertical features point comprising more rich effective information, horizontal properties point, synchronous trigger range, triggering characteristic point position, vertical scaling reference point is being configured, waveform is being moved horizontally, is vertically moved waveform, sets when the waveform such as triggering level is manipulated and directly reach above-mentioned wave character point position so that operation is more rapidly, accurately.
Description
Technical field
The present invention relates to electronic digital testing instrument device field, more particularly to a kind of electronics shown with digital waveform
The digital waveform manipulation module and its waveform method of operating of tester.
Background technology
In the electronic testing instrument shown with digital waveform, by taking general digital oscilloscope as an example, in order to more convenient
Waveform observation is carried out, waveform manipulation is typically carried out by the input button and spinning roller on oscilloscope panel.Basic manipulation waveform
Mode be, in level, vertical both direction scaling or mobile waveform, and suitable triggering level position to be set with display screen
The waveform stablized on curtain shows.
Digital oscilloscope waveform display area is typically divided into the big lattice of horizontal direction 10, the big lattice of vertical direction 8.
Every lattice signal magnitude of horizontal direction is measured with " second/lattice ", typically passes through " level sensitivity adjusting knob "
Adjustment waveform every lattice signal magnitude in the horizontal direction；For convenience of description, the every lattice adjustment waveform in the horizontal direction are big below
Small operation is referred to as " horizontal scaling ".
Every lattice signal magnitude of vertical direction is measured with " volt/lattice ", typically passes through " vertical sensitivity adjusting knob "
Every lattice signal magnitude of the adjustment waveform in vertical direction；It is below that adjustment waveform is big in every lattice of vertical direction for convenience of describing
Small operation is referred to as " vertical scaling ".
Each point coordinate in the horizontal direction on display waveform is with its time interval degree of carrying out relative to trigger point
Amount, the time of trigger point is 0 second.Carry out having a scaling reference point when " horizontal scaling ", referred to as horizontal scaling reference point, with this
Horizontal scaling is carried out centered on reference point；Horizontal scaling reference point is typically arranged on waveform screen center, away from waveform screen
At the lattice of left hand edge one, or at the lattice of waveform screen right hand edge one.If it is desired to certain time point horizontal scaling on certain waveform this
Individual waveform, it is necessary to this time point of waveform is moved at the horizontal scaling reference point of display screen first, is then performed
Horizontal scaling.
Horizontal level of the display waveform on screen carrys out table with trigger point relative to the time interval of horizontal scaling reference point
Show, the time at horizontal scaling reference point is referred to as the horizontal delay time, it is general that " horizontal delay regulation is passed through using fixed step pitch method
Knob " adjustment waveform display location in the horizontal direction.
Each point on display waveform is measured with it in the coordinate of vertical direction relative to the voltage of ground level, ground
The voltage of level is 0 volt.Carry out having a scaling reference point when " vertical scaling ", referred to as vertical scaling reference point is referred to this
Vertical scaling is carried out centered on point.There are two kinds of vertical scaling reference point set-up modes in prior art：Screen fixes display point side
Formula and waveform fixed voltage point mode.
It is that waveform scaling reference point is fixedly installed at the vertical centre of waveform screen that screen fixes display point mode, when
When needs carry out scaling centered on some electrical voltage point on waveform, just this point is moved to the vertical centre of waveform display screen curtain
Place.When in waveform display area display side by side up and down multiple waveforms, if it is desired to vertically being put with certain electrical voltage point on certain waveform
Contract the waveform, it is necessary to the above-mentioned electrical voltage point of the waveform is moved at the vertical centre of display screen first, then performs and hangs down
Straight scaling, this waveform to original display location will be also moved after may completing vertical scaling.Screen fixes display point mode
Under, voltage of each waveform at the vertical centre of waveform screen is referred to as the offset voltage of waveform.
Waveform fixed voltage point mode is that vertical scaling reference point is fixedly installed at a certain specific voltage point of waveform, one
As be perform it is automatic instruction is set after be automatically located in no-voltage position.Because the vertical voltage scope of unlike signal possible thousand is poor
Ten thousand, it is necessary to the position of scaling not may not be again in signal zero voltage location, prior art using the adjustment of fixed step pitch method vertically
Scaling reference point to need waveform voltage position.
Vertically moving the operation of waveform will change vertically displayed position of the waveform on screen, general using fixed step pitch method
Waveform is adjusted in the display location of vertical direction by vertical shift adjusting knob.
Triggering level regulation operation will change the comparative level size compared with channel input signal, only work as triggering level
Have when in the range of faster change positioned at signal voltage in channel input signal, the trigger signal of stabilization can be produced, make
Obtaining the display waveform on waveform screen can stablize display.It is general to be adjusted by triggering level adjusting knob using fixed step pitch method
The position of triggering level.
For waveform observation, what tester was generally concerned with is the position comprising more rich effective information in waveform, specifically
Be exactly in the horizontal direction waveform edge nearby, vertical direction be near waveform platform.In the activity of observation waveform, scaling ripple
What the operations such as shape, mobile waveform, test waveform often launched around these waveform key positions.A waveform is navigated to close
Key position, generally using fixed step pitch method in current techniques, smaller, the mobile efficiency of unit step pitch of fixed step pitch method is low, and
Manual regulative mode is not easy to be accurately positioned in waveform key point.Constantly become big, screen resolution with screen size continuous
The waveform number observed in raising, display screen is on the increase, and the regulation of relevant parameter also more and more not enough facilitates.
Therefore a kind of new digital manipulation method of offer is needed badly to solve the above problems.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of digital waveform operation module and its method, can make operation
Person quickly and accurately realizes waveform operation purpose by less operating procedure.
In order to solve the above technical problems, one aspect of the present invention is：A kind of digital waveform is provided and manipulates mould
Block, including Signal-regulated kinase, waveform acquisition module, waveform bitmap maintenance module, the display, signal condition mould being sequentially connected
The input input signal of block a, output end connects trigger control circuit, and the output end of trigger control circuit connects a period of time base
Circuit, the output end connection waveform acquisition module of time base circuit, waveform bitmap maintenance module is mutually interconnected with waveform bit image memory
Connect, an output end of waveform bitmap maintenance module is connected with statistics with histogram and waveshape feature abstraction module, the digital waveform
Manipulation module also includes a master controller, and one end of master controller is connected as digital waveform manipulation module human-machine operation circle
The input keyboard in face, 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, the input keyboard includes universal input knob, triggering level regulation rotation
Button, vertical shift adjusting knob, vertical sensitivity adjusting knob, horizontal delay adjusting knob, level sensitivity adjusting knob.For
And the fixed step pitch operating mechanism of current techniques is organically blended, for waveform method of operating of the present invention provides a set of only
Vertical man machine operation interface.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of digital waveform operation is provided
Method, comprises the following steps：
The waveform of generation is processed by waveform bitmap maintenance module by statistics with histogram and waveshape feature abstraction module analysis
Waveform display data in bit image memory, calculates the wave character point of digital waveform operation module Zhong Ge roads display waveform,
It includes vertical features point, synchronous trigger range, triggering characteristic point, horizontal properties point, and master controller is using the waveform for calculating
Characteristic point responds input keyboard and the regulation of digital waveform relevant parameter and waveform is manipulated；
The computational methods of wave character point are as follows：
(1) waveform voltage histogram is counted：For the waveform of each the display waveform trace in the range of waveform display window
The Data-Statistics waveform voltage histogram of point, carries out smooth filtering the voltage histogram after being smoothed to waveform voltage histogram；
(2) waveform voltage position of platform is calculated：Voltage histogram after analytical smoothing, low level is to high in voltage histogram
Level and high level are waveform voltage platform to the region between two hopping edges of low level, calculate each waveform voltage platform
Midpoint, as waveform voltage position of platform；
(3) waveform vertical features point is extracted：Voltage histogram after analytical smoothing obtains maximum point position, smallest point position
Put, midpoint and the waveform voltage position of platform of each waveform per two neighboring waveform voltage platform, the midpoint of whole waveform is fixed
Justice is waveform vertical features point；
(4) synchronous trigger range is calculated：The scope between each adjacent waveform voltage platform is calculated, as synchronous trigger range；
(5) triggering characteristic point is calculated：10%, 50%, 90% 3 location point in synchronous trigger range is calculated, as triggering
Characteristic point；
(6) waveform time histogram is counted：Data-Statistics for the data point in the range of each waveform voltage platen window are every
Waveform time histogram in individual waveform voltage flat roof area；
(7) waveform horizontal properties point is calculated：Each saltus step of each waveform voltage platform in acquisition waveforms time histrogram
Along position, the midpoint per two neighboring hopping edge is taken, as horizontal properties point.
In a preferred embodiment of the present invention, the vertical scaling reference point of waveform is quickly set using waveform vertical features point
Waveform method of operating：It is one of each waveform vertical features point to switch vertical scaling reference point locations by input keyboard, when aobvious
The waveform change shown causes vertical scaling reference point locations not to be included in when in waveform indication range, and adjust automatically waveform is vertically put
Contracting reference point locations are to immediate waveform vertical features point position in waveform.
In a preferred embodiment of the present invention, using the waveform of waveform vertical features point quick regulation waveform upright position
Method of operating：When vertically moving waveform, the waveform of current vertical scaling reference point locations is moved into the next number of moving direction
The screen integer lattice position of character waveform operation module.
In a preferred embodiment of the present invention, the ripple of triggering level is set using synchronous trigger range and triggering characteristic point
Shape method of operating：When the automatic setting key of operation input keyboard carries out the automatic setting of digital waveform operation module, triggering is set
Level is in the triggering characteristic point close to waveform center；Operation input keyboard adjusts the triggering electricity of digital waveform operation module manually
Usually, triggering level is set gradually respectively to be triggered in characteristic point in moving direction；When master controller detects triggering level beyond same
During step trigger range, by digital waveform operation module adjust automatically triggering level in the triggering characteristic point close to waveform center.
In a preferred embodiment of the present invention, using the waveform of waveform horizontal properties point quick regulation waveform horizontal level
Method of operating：The horizontal scaling reference point of waveform is set at the screen center of digital waveform operation module or away from screen left hand edge
At one lattice or at the lattice of screen right hand edge one, when moving horizontally waveform, horizontal scaling reference point locations are set gradually in movement side
On time to each horizontal properties point.When horizontal scaling reference point locations have been in adjustment direction last horizontal properties point
During position, when adjusting waveform skew again, by a lattice step distance adjustment on the screen of digital waveform operation module.It is right as special case
In time-base waveform is postponed, when delay time-base waveform does not exist waveform horizontal properties point on direction is moved horizontally in window, from
Main time-base waveform finds next waveform horizontal properties point of moving direction in window, and time as delay in window is corresponded to using it
The horizontal scaling reference point locations of time-base waveform.
The beneficial effects of the invention are as follows：The present invention by setting up a kind of digital waveform operation module, from waveform display data
Middle to extract the position comprising the relatively abundant and wave character point of effective information, the waveform operation method then utilizes the wave character
Point position, waveform key point position needed for directly being reached in the electronic testing instrument that operation shows with digital waveform, quickly
Convenient operation, precise and high efficiency positioning.
Brief description of the drawings
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 the input keyboard；
Fig. 3 is the flow chart that the statistics with histogram and waveshape feature abstraction module calculate wave character point methods；
Fig. 4 is the schematic diagram that the statistics with histogram and waveshape feature abstraction module calculate wave character point；
Fig. 5 is the screen display waveform diagram of digital waveform operation module；
Fig. 6 is that dual time base waveform moves horizontally schematic diagram；
The mark of each part is as follows in accompanying drawing：21st, universal input knob, 22, triggering level adjusting knob, 23, it is vertical partially
Move adjusting knob, 24, vertical sensitivity adjusting knob, 25, horizontal delay adjusting knob, 26, level sensitivity adjusting knob,
41st, display waveform trace, 42, waveform voltage histogram, 43, it is smooth after waveform voltage histogram, 44, waveform voltage platform model
Contour, 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.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Fig. 1 and Fig. 2 is referred to, the embodiment of the present invention includes：
A kind of digital waveform manipulation module, including Signal-regulated kinase, waveform acquisition module, the waveform bitmap being sequentially connected
Maintenance module, display, the input input signal of Signal-regulated kinase a, output end connect trigger control circuit, triggering
The output end of circuit is controlled to connect a time base circuit, the output end connection waveform acquisition module of time base circuit, waveform bitmap is safeguarded
Module is connected with each other with waveform bit image memory, and an output end of waveform bitmap maintenance module is connected with statistics with histogram and waveform
Characteristic extracting module, the digital waveform manipulation module also includes a master controller, and one end connection of master controller is used as described
The input keyboard of digital waveform manipulation module man machine operation interface, the other end of master controller is each with digital waveform manipulation module
Part is connected.
Signal-regulated kinase, trigger control module, time base circuit are the control circuits for implementing waveform manipulation.Signal is adjusted
Reason module controls the vertical scaling and vertical shift to input signal, and trigger control circuit compares input signal with triggering level
Trigger signal is produced, time base circuit controls the waveform acquisition the window's position with trigger signal corresponding time point as reference point (right
Should be in horizontal scaling gear and horizontal offset positions), waveform acquisition module is simulated digital conversion to signal and in Shi Ji electricity
Waveform acquisition is carried out under the control on road, the waveform display data after collection is stored by after the treatment of waveform bitmap maintenance module
In waveform bit image memory, the waveform bitmap number of statistics with histogram and waveshape feature abstraction module in waveform bit image memory
According to wave character point is calculated, result of calculation is utilized by master controller, behaviour of the main controller controls input keyboard to each display waveform
It is vertical.Master controller controls the programming of other each several part circuits simultaneously.
In order to the fixed step pitch operating mechanism with prior art is organically blended, the digital waveform manipulation module is this
Invent the waveform method of operating and a set of independent man machine operation interface be provided --- input keyboard.The input keyboard includes logical
With input knob 21, triggering level adjusting knob 22, vertical shift adjusting knob 23, vertical sensitivity adjusting knob 24, level
Postpone adjusting knob 25, level sensitivity adjusting knob 26.As shown in Fig. 2 each adjusting knob can all using inside and outside nesting
Double-knob mode, it is outside for waveform method of operating of the present invention, it is internal for traditional fixed step pitch regulation；Also may be used
To use the Single button with button, by the operation of button on each knob in waveform method of operating of the present invention and traditional
Switch between fixed step pitch regulation.
Based on the above digital waveform manipulation module, present invention also offers a kind of digital waveform method of operating, including
Following steps：
The waveform of generation is processed by waveform bitmap maintenance module by statistics with histogram and waveshape feature abstraction module analysis
Waveform display data in bit image memory, calculates the wave character point of digital waveform operation module Zhong Ge roads display waveform,
It includes vertical features point, synchronous trigger range, triggering characteristic point, horizontal properties point, and master controller is using the waveform for calculating
Characteristic point responds input keyboard and the regulation of digital waveform relevant parameter and waveform is manipulated；
Fig. 3 and Fig. 4 is referred to, the computational methods of wave character point are as follows：
(1) waveform voltage histogram is counted：For the ripple of each the display waveform trace 41 in the range of waveform display window
The Data-Statistics waveform voltage histogram 42 of form point, smooth filtering after small fluctuation smoothed is carried out to waveform voltage histogram 42
Voltage histogram 43；
(2) waveform voltage position of platform is calculated：Voltage histogram 43 after analytical smoothing, low level in voltage histogram 43
It is waveform voltage platform 441,442 to high level and high level to the region between two hopping edges of low level, is designated as A, B；Meter
The midpoint of each waveform voltage platform is calculated, as waveform voltage position of platform, a, b is designated as；
(3) waveform vertical features point 45 is extracted：Voltage histogram 43 after analytical smoothing obtains maximum point position (institute in figure
Show c), smallest point position (d shown in figure), per two neighboring waveform voltage platform midpoint (e shown in figure) and each waveform
Waveform voltage position of platform (a, b shown in figure), the midpoint of whole waveform is defined as waveform vertical features point 45；
(4) synchronous trigger range is calculated：The scope between each adjacent waveform voltage platform is calculated, as synchronous trigger range
(C shown in figure)；
(5) triggering characteristic point is calculated：10%, 50%, 90% 3 location point in synchronous trigger range is calculated, as triggering
Characteristic point；
(6) statistics waveform time histogram 46：For the data point in each waveform voltage platen window scope 441 and 442
Data-Statistics each waveform voltage flat roof areas in waveform time histogram 46；
(7) waveform horizontal properties point 47 is calculated：Each of each waveform voltage platform in acquisition waveforms time histrogram 46
Hopping edge position, takes the midpoint per two neighboring hopping edge, as horizontal properties point 47, such as 47 each short vertical line of correspondence in Fig. 4
Screen position.
The specifically conventional waveform manipulation side of digital waveform operation module is described below with above-mentioned basic waveform method of operating
Method：
(1) using the quick waveform method of operating for setting the vertical scaling reference point 51 of waveform of waveform vertical features point 45：It is logical
Cross input keyboard and switch the vertical position of scaling reference point 51 for each waveform vertical features point one of 45, when the waveform change of display is led
The vertical position of scaling reference point 51 is caused not to be included in when in waveform indication range, the vertical scaling reference point of adjust automatically waveform 51
Put the immediate position of waveform vertical features point 45 in waveform.As shown in P in Fig. 5, the vertical scaling reference point 51 of the waveform sets
Put on the vertical features point 45 of waveform maximum point position, as shown in Q in Fig. 5, the vertical scaling reference point 51 of the waveform is arranged on
On the vertical features point 45 of smallest point position；
(2) using the waveform method of operating of the quick regulation waveform upright position of waveform vertical features point 45：Vertically move ripple
During shape, the waveform of the position of current vertical scaling reference point 51 is moved to the screen of the next digital waveform operation module of moving direction
Curtain integer lattice position.The unit step pitch that traditional fixed step pitch method is vertically moved in the prior art is small, compared with prior art, this
Invention sets the vertical scaling reference point 51 of waveform on the basis of the wave character point for calculating, with the vertical scaling reference point 51 of waveform
It is moving reference, waveform can be moved quickly into required position, navigates to key point is manipulated needed for waveform rapidly；
(3) the waveform method of operating of triggering level is set using synchronous trigger range and triggering characteristic point：Operation enter key
When the automatic setting key of disk carries out the automatic setting of digital waveform operation module, triggering level is set in touching close to waveform center
In hair characteristic point；When operation input keyboard adjusts the triggering level of digital waveform operation module manually, triggering level is set gradually
Respectively triggered in characteristic point in moving direction；When master controller detects triggering level exceeds synchronous trigger range, by digital wave
Shape operation module adjust automatically triggering level is in the triggering characteristic point close to waveform center.
(4) using the waveform method of operating of the quick regulation waveform horizontal level of waveform horizontal properties point 47：Waveform water is set
It is at the screen center of digital waveform operation module or at the lattice of screen left hand edge one or right away from screen to keep flat contracting reference point 52
At the lattice of edge one, when moving horizontally waveform, the horizontal position of scaling reference point 52 is set gradually in each horizontal properties point of moving direction
On 47 time.When the horizontal position of scaling reference point 52 has been in last horizontal properties 47 position of point of adjustment direction,
When adjustment waveform offsets again, by a lattice step distance adjustment on the screen of digital waveform operation module.As a special case, for prolonging
Slow time-base waveform, in such as Fig. 6 (a) and Fig. 6 (b), upper waveform window is main time-base waveform window, and lower waveform window is delay
Time-base waveform window, wherein it is waveform in rectangle frame in main time-base waveform window to postpone the waveform in time-base waveform window
Level amplifies display.On the basis of waveform shown in Fig. 6 (a), when base window waveform when lower section postpones is moved horizontally to the right, because
(111 in figure, the correspondence time is 0s to postpone the horizontal scaling reference point of time-base waveform；It is corresponding from left side number the 4th in main time-base waveform
Go here and there the Far Left edge of waveform) left side (in screen ranges) do not had waveform horizontal properties point, then base window when directly will be main
(the main time-base waveform of correspondence is from the string waveform of left side number the 3rd for the corresponding next waveform horizontal properties point of middle moving direction (left)
Rightmost edge, -22.56ms moment) be placed on postpone time-base waveform window horizontal scaling reference point locations (112 in figure, correspondence
Time is -22.56ms) on, after movement as shown in Fig. 6 (b).
The digital waveform operating method is based on following operation principle：The digital waveform operation module hangs down current form
Straight scaling reference point, horizontal scaling reference point, triggering level position and each vertical, horizontal properties point storage of waveform are in histogram system
In meter and waveshape feature abstraction module, for being compared to carry out following detection automatically：Whether vertical scaling reference point locations
Be included in waveform indication range, triggering level whether in triggering locking range, waveform whether not move horizontally direction
There is horizontal properties point.Testing result notifies the master controller of digital waveform operation module by interrupt mode, next to determine
Step operation.
The present invention extracts from waveform display data and includes relatively abundant and have by setting up a kind of digital waveform operation module
The position of the wave character point of effect information, the waveform operation method then utilizes the wave character point position, in operation with number
Waveform key point position needed for directly being reached during the electronic testing instrument that character waveform shows, quick and convenient operation, precise and high efficiency is fixed
Position.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (6)
1. the waveform method of operating of digital waveform manipulation module, described digital waveform manipulation module includes the signal being sequentially connected
Conditioning module, waveform acquisition module, waveform bitmap maintenance module, display, the input input signal of Signal-regulated kinase, one
Individual output end connects trigger control circuit, and the output end of trigger control circuit connects a time base circuit, the output end of time base circuit
Connection waveform acquisition module, waveform bitmap maintenance module is connected with each other with waveform bit image memory, waveform bitmap maintenance module
One output end is connected with statistics with histogram and waveshape feature abstraction module, and the digital waveform manipulation module also includes a main control
Device, one end of master controller is connected as the input keyboard of the digital waveform manipulation module man machine operation interface, master controller
The other end be connected with each several part of digital waveform manipulation module；The input keyboard includes universal input knob, triggering electricity
Flat adjusting knob, vertical shift adjusting knob, vertical sensitivity adjusting knob, horizontal delay adjusting knob, level sensitivity are adjusted
Section knob；Waveform method of operating is comprised the following steps：
The waveform bitmap of generation is processed by waveform bitmap maintenance module by statistics with histogram and waveshape feature abstraction module analysis
Waveform display data in memory, calculates the wave character point of digital waveform manipulation module Zhong Ge roads display waveform, its bag
Vertical features point, synchronous trigger range, triggering characteristic point, horizontal properties point are included, master controller is using the wave character for calculating
Point response input keyboard is manipulated to the regulation of digital waveform relevant parameter and waveform；
The computational methods of wave character point are as follows：
（1）Statistics waveform voltage histogram：For the data point of each display waveform trace in the range of waveform display window
Data-Statistics waveform voltage histogram, carries out smooth filtering the voltage histogram after being smoothed to waveform voltage histogram；
（2）Calculate waveform voltage position of platform：Voltage histogram after analytical smoothing, low level is to high level in voltage histogram
It is waveform voltage platform with high level to the region between two hopping edges of low level, in calculating each waveform voltage platform
Point, as waveform voltage position of platform；
（3）Extract waveform vertical features point：Voltage histogram after analytical smoothing obtains maximum point position, smallest point position, often
The midpoint of two neighboring waveform voltage platform and the waveform voltage position of platform of each waveform, the midpoint of whole waveform, are defined as
Waveform vertical features point；
（4）Calculate synchronous trigger range：The scope between each adjacent waveform voltage platform is calculated, as synchronous trigger range；
（5）Calculate triggering characteristic point：10%, 50%, 90% 3 location point in synchronous trigger range is calculated, as triggering characteristic point；
（6）Statistics waveform time histogram：For each ripple of the Data-Statistics of the data point in the range of each waveform voltage platen window
Waveform time histogram in the range of shape voltage platform；
（7）Calculate waveform horizontal properties point：Each hopping edge position of each waveform voltage platform in acquisition waveforms time histrogram
Put, the midpoint per two neighboring hopping edge is taken, as horizontal properties point.
2. waveform method of operating according to claim 1, it is characterised in that ripple is quickly set using waveform vertical features point
The waveform method of operating of the vertical scaling reference point of shape：Vertical scaling reference point locations are switched for each waveform is vertical by input keyboard
One of characteristic point, when the waveform change of display causes vertical scaling reference point locations not to be included in waveform indication range, from
It is dynamic to adjust the vertical scaling reference point locations of waveform to immediate waveform vertical features point position in waveform.
3. waveform method of operating according to claim 2, it is characterised in that utilize waveform vertical features point quick regulation ripple
The waveform method of operating of shape upright position：When vertically moving waveform, the waveform of current vertical scaling reference point locations is moved to
The screen integer lattice position of the next digital waveform manipulation module of moving direction.
4. waveform method of operating according to claim 1, it is characterised in that using synchronous trigger range and triggering characteristic point
The waveform method of operating of triggering level is set：Operating the automatic setting key of input keyboard carries out the automatic of digital waveform manipulation module
During setting, setting triggering level is in the triggering characteristic point close to waveform center；Operation input keyboard adjusts digital waveform manually
During the triggering level of manipulation module, set gradually triggering level and respectively triggered in characteristic point in moving direction；When master controller detection
When exceeding synchronous trigger range to triggering level, by digital waveform manipulation module adjust automatically triggering level close to waveform center
Triggering characteristic point on.
5. waveform method of operating according to claim 1, it is characterised in that utilize waveform horizontal properties point quick regulation ripple
The waveform method of operating of shape horizontal level：Screen center of the horizontal scaling reference point of waveform in digital waveform manipulation module is set
Locate or at the lattice of screen left hand edge one or at the lattice of screen right hand edge one, when moving horizontally waveform, set gradually horizontal scaling
Reference point locations are on the time of each horizontal properties point of moving direction；When horizontal scaling reference point locations have been in adjustment direction
During last horizontal properties point position, when adjusting waveform skew again, walked by a lattice on the screen of digital waveform manipulation module
Away from adjustment.
6. waveform method of operating according to claim 5, it is characterised in that for postponing time-base waveform, when prolonging in window
When slow time-base waveform does not exist waveform horizontal properties point on direction is moved horizontally, main time-base waveform finds movement side from window
To next waveform horizontal properties point, using its correspondence time as the horizontal scaling reference point position for postponing time-base waveform in window
Put.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5939877A (en) * | 1997-05-27 | 1999-08-17 | Hewlett-Packard Company | Graphical system and method for automatically scaling waveforms in a signal measurement system |
-
2014
- 2014-12-25 CN CN201410829729.XA patent/CN104502657B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN104502657A (en) | 2015-04-08 |
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