CN103592486A - Touch control type oscilloscope and waveform display touch control operation method thereof - Google Patents
Touch control type oscilloscope and waveform display touch control operation method thereof Download PDFInfo
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Abstract
The invention relates to a touch control type oscilloscope and a waveform display touch control operation method thereof. The touch control type oscilloscope comprises a touch control display unit and a waveform processing and sampling unit, wherein the touch control display unit is connected with the waveform processing and sampling unit and comprises a touch control module and a display module; the touch control module detects a touch control gesture and converts the gesture into a corresponding group of waveform processing parameters according to the touch control gesture; and the waveform processing and sampling unit is provided with at least one signal input end for receiving at least one external signal to be detected, performing sampling on the signal to be detected according to the group of waveform processing parameters and processing the signal to be a corresponding waveform image so as to output the waveform image to the display module for displaying, such that the touch control unit performs operation and displays a display waveform, thus space, which is apart from the display module and is occupied by a mechanical knob, is saved, through cooperation, the size of the display module becomes bigger or the oscilloscope is miniaturized, and user operation is more intuitive and rapid.
Description
Technical field
The present invention system is about a kind of oscillograph and waveform indication operation method thereof, and espespecially a kind of touch oscillograph and waveform thereof show touch operation method.
Background technology
Oscillograph is a kind of instrument that is used for measuring electronic signal waveform, and it is generally used in detection, studies the family curve of electronic signal and electronic component etc., studies one of research equipment the most often using for electronic motor.
Refer to Figure 11 and Figure 12, existing oscillograph includes:
One control module 50, it includes a processor 51, plural knob 52 and plural button 53, this plural number knob 52 is for user's operation, and this processor 51 is to be connected with this plural number knob 52 and this plural number button 53, and produces one group of waveform processing parameter according to the operation of plural knob 52 and button 53;
One waveform processing and sampling unit 60, its processor 51 that is connected to this control module 50 connects, and there is at least one signal input part 61, to receive an outside measured signal, and this group waveform processing parameter producing according to this control module 50 is treated to this measured signal the waveform image of one correspondence; And
One display module 70, it is connected with this waveform processing and sampling unit 60, to receive and to show this waveform image.
The object that above-mentioned oscillograph is set waveform processing parameter is the waveform that convergent-divergent or mobile display demonstrate, for example: in this group waveform processing parameter, conventionally include voltage superposition value, voltage amplification multiplying power, sampling frequency value and horizontal level setting value, and increase and decrease voltage superposition value can move up and down display waveform in vertical axial; Subtract the mean place setting value of surging (Pre-Trigger Counter and Post-Trigger Counter) and can on horizontal axis, move left and right display waveform; Subtract increase voltage amplification multiplying power can be on vertical axial Zoom display waveform (changing vertical gear); Subtract increase sampling frequency value can be on horizontal axis Zoom display waveform (changing horizontal gear); So, allowed user's convergent-divergent and mobile display waveform to facilitate each details of observing waveform.
Yet, because knob can occupy oscilloscope display space in addition, and the mode of operation of knob can clockwise or be rotated counterclockwise, therefore a knob can only be adjusted the size of a waveform processing parameter, make the above-mentioned oscillograph must be so that a plurality of knobs to be set, quite take up space, make oscillograph be difficult to miniaturization; Again, a plurality of knobs also can cause user to operate to obscure, often adjust wrong knob; Moreover, with knob, adjust waveform processing parameter person, the rate of change of its waveform processing parameter size depends on the rotation lattice number that rotates knob, user is with finger rotation knob, each rotatable rotation lattice number is limited, be unfavorable for the operation of fast moving display waveform, particularly display waveform long distance moving on horizontal axis, user just can observe the waveform character that will observe after often need rotating the tens of circles of knob; In addition, mechanical knob component life is short, also often needs maintain and replace.
In sum, existing oscillographic knob can occupy space beyond display, be difficult to miniaturization, and also not convenient in user's operation, and knob component life is short also causes user often to send and repair, and therefore, the real need of existing oscillograph improved.
Summary of the invention
Because above-mentioned oscillograph must operate for user with a plurality of buttons and knob, the technological deficiency that easily make user operate obscuring, most knob takes up room and knob component life is short, fundamental purpose of the present invention shows touch operation method for proposing a kind of touch oscillograph and waveform thereof.
Wanting to reach the technical way that above-mentioned purpose used is to make this touch oscillograph include:
One touch-display unit, it includes a touch-control module and a display module, and a touch-control gesture detects in this touch-control module system, and is converted to one group of corresponding waveform processing parameter according to this touch-control gesture;
One waveform processing and sampling unit, it is connected with touch-control module and the display module of this touch-display unit, and there is at least one signal input part, to receive at least one outside measured signal, and this measured signal is treated to after the waveform image of a correspondence according to this group waveform processing parameter, output is given this display module and is shown.
The present invention system is provided with touch-control gesture with touch-display unit and sets this group waveform processing parameter, reduce knob and take display module space in addition, be beneficial to oscillograph miniaturization or increase the size of display module, and allowing more intuition and fast of mode of operation that oscillograph provides.
Described touch-control module includes a Trackpad, one touch control controller and a central processing unit, this Trackpad detect user with finger the touch point while carrying out touch control operation, this touch control controller system is connected with this Trackpad and this central processing unit, and the touch points detecting according to this Trackpad, and the output one group continuous coordinate corresponding with touch points gives this central processing unit, and this central processing unit is organized after continuous coordinate in receiving this, touch-control gesture corresponding to variation judgement touch points according to continuous coordinate, and produce this group waveform processing parameter according to touch-control gesture, so, be available for users to make central processing unit produce different waveform processing parameters by different touch-control gestures.
Described waveform processing parameter comprises a direct current voltage superposition value and a horizontal level setting value, and the Trackpad of this touch-control module detects a single-point towing touch-control gesture, this organizes continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate comprises single touch points towing, this central processing unit changes this DC voltage stacking value of setting according to the continuous vertical axial coordinate of this list touch points, and change this horizontal level setting value of setting according to the continuous horizontal axial seat target of this list touch points, to adjust respectively the movement of display waveform on vertical axial and the movement on horizontal axis.
Because the operation of touch-control gesture is diversified compared to the knob that only can suitable be rotated counterclockwise, as above-mentioned, for user, with single-point, pull touch-control gesture operation person, can be used to change respectively DC voltage stacking value and horizontal level setting value in waveform processing parameter, so that the operation of mobile display waveform on vertical axial and horizontal axis is integrated on a Trackpad, can further reduce again the magnitude setting of knob, and avoid the mode of operation of many knobs to cause that user is operational to obscure.
Described waveform processing parameter further comprises an enlargement ratio setting value and a sampling frequency setting value, and the Trackpad of this control module detects a multiple spot reverse slide touch-control gesture, make this organize continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate comprises two touch points, this central processing unit according to this organize two touch points in continuous coordinate continuous vertical axial coordinate near and away from reducing respectively and increase this enlargement ratio setting value, and the continuous horizontal axial seat target of organizing two touch points in continuous coordinate according to this near and away from reducing respectively and increase this sampling frequency setting value.
So, be able to multi-point touch gesture and further integrate operating on same Trackpad of four parameter values, user can operate movement and the convergent-divergent of display waveform on same Trackpad, avoids operation to obscure, easy to use.
Wanting to reach the technical way that above-mentioned purpose used is to make the oscillographic waveform of this touch show in touch operation method,
This oscillograph is provided with one in order to detect the touch-display unit of touch-control gesture and display waveform image, and this waveform shows that touch operation method lies in after this oscillograph receives a measured signal and carry out, and comprises the following steps:
From this touch-display unit, receive one group of waveform processing parameter, wherein this waveform processing system of parameters produces according to the variation of its touch-control gesture detecting according to this touch-display unit;
According to this group waveform processing parameter, this measured signal is treated to the waveform image of a correspondence;
Waveform image output to this touch-display unit is shown.
So, with touch-display unit, supply user to operate and show corresponding display waveform person, can save mechanical knob and take the space beyond display module, with by oscillograph miniaturization or increase the size of display module, and allow more intuition and fast of mode of operation that oscillograph provides.
The described step that produces this group waveform processing parameter according to this touch-display unit according to the variation of its touch-control gesture detecting comprises:
If detect this single-point towing touch-control gesture, the vertical axial coordinate according to single touch points changes this DC voltage stacking value of setting continuously, and changes continuously this horizontal level setting value of setting according to the horizontal axis coordinate of single touch points;
If detect this multiple spot reverse slide touch-control gesture, according to the vertical axial coordinate of multiple spot reverse slide touch-control gesture two touch points near and away from reducing respectively and increase this enlargement ratio setting value, and according to the horizontal axis coordinate of multiple spot reverse slide touch-control gesture two touch points near and away from reducing respectively and increase this sampling frequency setting value.
Accompanying drawing explanation
Figure 1A: be circuit box schematic diagram of the present invention.
Figure 1B: be Figure 1A detailed circuit diagram.
Fig. 2 A: be an operation chart of single-point towing touch-control gesture setting DC voltage stacking value.
Fig. 2 B: be another operation chart of single-point towing touch-control gesture setting DC voltage stacking value.
Fig. 3 A: be an operation chart of multiple spot reverse slide touch-control gesture setting enlargement ratio setting value.
Fig. 3 B: be another operation chart of multiple spot reverse slide touch-control gesture setting enlargement ratio setting value.
Fig. 4 A: be an operation chart of multiple spot reverse slide touch-control gesture setting sampling frequency setting value.
Fig. 4 B: be another operation chart of multiple spot reverse slide touch-control gesture setting sampling frequency setting value.
Fig. 5 A: be an operation chart of single-point towing touch-control gesture setting horizontal level setting value.
Fig. 5 B: be another operation chart of single-point towing touch-control gesture setting horizontal level setting value.
Fig. 5 C: be horizontal level and the schematic diagram that triggers pre-numerical value, the rear wait value of triggering and data length relation of display waveform.
Fig. 6: be the operation chart of single-point towing touch-control gesture setting DC voltage stacking value and horizontal level setting value.
Fig. 7: be the operation chart of multiple spot reverse slide touch-control gesture setting enlargement ratio setting value and sampling frequency setting value.
Fig. 8 A: for multiple spot pulls the operation chart that touch-control gesture increases and decreases DC voltage stacking value fast.
Fig. 8 B: for multiple spot pulls the operation chart that touch-control gesture increases and decreases horizontal level setting value fast.
Fig. 9 A: for single-point pulls the operation chart that touch-control gesture increases and decreases at a slow speed DC voltage stacking value.
Fig. 9 B: for single-point pulls the operation chart that touch-control gesture increases and decreases at a slow speed horizontal level setting value.
Figure 10: for single-point pulls the operation chart that touch-control gesture whipping touch points is set horizontal level setting value.
Figure 11: be existing oscillographic circuit box schematic diagram.
Figure 12: be existing oscillographic outward appearance planimetric map.
Embodiment
Below coordinate preferred embodiment graphic and of the present invention, further setting forth the present invention is to reach the technological means that predetermined goal of the invention is taked.
Refer to Figure 1A, touch oscillograph of the present invention is to include:
One touch-display unit 10, it includes a touch-control module 11 and a display module 12, this touch-control module 11 is to detect a touch-control gesture, and is converted to one group of corresponding waveform processing parameter according to this touch-control gesture, as for the transformational relation of touch-control gesture and waveform processing parameter, please be detailed later;
One waveform processing and sampling unit 20, it is connected with touch-control module and the display module of this touch-display unit, and there is at least one signal input part 21, to receive at least one outside measured signal, and according to this group waveform processing parameter, after first to this measured signal sampling, also digitizing completes, digitized measured signal is treated to a corresponding waveform image, and this display module 12 demonstrations are given in output, in the present embodiment, this waveform processing and sampling unit 20 include a direct current voltage superposition module 22, one voltage amplification module 23, one analog digital modular converter 24 and a digital signal processing module 25, and this DC voltage superposition module 22 connects this signal input part 21.
Sincerely first further describe the setting of waveform processing parameter and the relation of the display waveform that display module 12 demonstrates below, please further consult Figure 1B, the oscillograph of binary signal input end 21 of take is example, wherein:
The touch-control module 11 of described touch-display unit 10 includes a Trackpad 13, one touch control controller 14 and a central processing unit 15, this Trackpad 13 be detect user with finger the touch point while carrying out touch control operation, this touch control controller 14 is to be connected with this Trackpad 13 and this central processing unit 15, and the output one group continuous coordinate corresponding with touch points gives this central processing unit 15, this central processing unit 15 is organized after continuous coordinate in receiving this, touch-control gesture corresponding to variation judgement touch points according to continuous coordinate, and produce this group waveform processing parameter according to touch-control gesture, this group waveform processing parameter includes a direct current voltage superposition value, one enlargement ratio setting value, one sampling frequency setting value and a horizontal level setting value,
The Trackpad 13 of described touch-control module 11 detects a single-point towing touch-control gesture and multiple spot opposite direction sliding touch gesture, wherein:
When Trackpad 13 detects single-point towing touch-control gesture, this of touch control controller 14 outputs organized continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate can comprise continuous single touch points, the increase and decrease of the continuous vertical axial coordinate of 15 single touch points of foundation of this central processing unit and increase and decrease this DC voltage stacking value, and set this horizontal level setting value according to the continuous horizontal axial seat target increase and decrease of single touch points;
When Trackpad 13 detects multiple spot reverse slide touch-control gesture, this of touch control controller 14 outputs organized continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate can comprise two touch points, 15 of this central processing units according to this organize two touch points in continuous coordinate continuous vertical axial coordinate near and away from reducing respectively and increase this enlargement ratio setting value, and the continuous horizontal axial seat target of organizing two touch points in continuous coordinate according to this near and away from reducing respectively and increase this sampling frequency setting value, in the present embodiment, this central processing unit 15 is set a start critical value, and the enlargement ratio setting value that central processing unit 15 is set includes plural multiplying power grade, and in detect two touch points continuous vertical axial coordinate near and away from variable in distance amount reduce respectively and increase the multiplying power grade that this enlargement ratio setting value sets while being greater than this start critical distance changing value, this sampling frequency setting value that central processing unit 15 is set includes Complex frequency grade, and central processing unit 15 in the continuous horizontal axial seat target that detects two touch points near and away from variable in distance amount reduce respectively and increase the frequency level that this sampling frequency setting value sets while being greater than this start critical distance changing value.
With next further quadripartition display waveform is described respectively vertical mobilely set, vertical gear convergent-divergent is set, move horizontally and set and horizontal gear convergent-divergent is set:
1. vertical mobile setting; Please refer to Figure 1B, Fig. 2 A and Fig. 2 B:
Described DC voltage superposition module 22 comprise two digital analog converters 221 and two voltage superposition devices 222 and, this two digital analog converter 221 is to be connected with this two voltage superpositions device 222 respectively, and be connected with the central processing unit 15 of this touch-control module 11, by these central processing unit 15 these DC voltage stacking values of output, give this two digital analog converter 221, this two digital analog converter 221 is exported corresponding DC voltage and is given this two voltage superpositions device 222 after receiving DC voltage stacking value, this two voltage superpositions device 222 is to be connected with this binary signal input end 21 respectively, and the DC voltage superposition that corresponding digital analog converter 221 is exported is in measured signal, so, when user's touch points P1 moves down, the continuous vertical axial coordinate of touch points is tending towards reducing, voltage superposition device 222 superpositions are tending towards reducing in the DC voltage of input signal, and the display waveform that measured signal is corresponding just can move down on vertical axial, otherwise, when touch points up moves, vertical axial coordinate is tending towards increasing continuously, and voltage superposition device 222 superpositions are tending towards increasing in the DC voltage of input signal, and the display waveform that measured signal is corresponding just can move up.
2. vertical gear convergent-divergent is set; Please refer to Figure 1B, Fig. 3 A and Fig. 3 B:
Described voltage amplification module 23 includes two amplifiers 231, this two amplifier 231 connects respectively this two voltage superpositions device 221, to receive the measured signal through DC voltage superposition, and each amplifier 231 has an enlargement ratio and sets end 232, it is the central processing unit 15 that is connected to this this touch-control module 11 that the enlargement ratio of each amplifier 231 is set end 232, makes each amplifier 231 amplify this measured signal according to the multiplying power grade that in this central processing unit 15, enlargement ratio setting value sets; So, when user is with two finger touches, and make two touch points P1, the vertical coordinate of P2 away from and variable in distance value (
while being greater than start critical value, the multiplying power grade that in this central processing unit 15, enlargement ratio is set just increases one-level, the display size of display waveform corresponding to measured signal on vertical axial just can amplify a grade, otherwise, when user make two touch points P1, the vertical coordinate of P2 mutually near and close variable in distance value (
while being greater than this start critical value, the multiplying power grade that in this central processing unit 15, enlargement ratio is set just reduces one-level, and the display size of display waveform corresponding to measured signal on Z-axis item just can dwindle a grade.
3. horizontal gear convergent-divergent is set; Please refer to Figure 1B, Fig. 4 A and Fig. 4 B:
Described analog digital modular converter 24 includes two analog-digital converters 241, two amplifiers 231 that connect respectively this voltage amplification module 23, to receive the measured signal through DC voltage superposition and amplification, and this measured signal is sampled and is quantified as numerical data;
Described digital signal processing module 25 includes a frequency generator 251, one sampling control circuit 252, one sample storer 253 and a trigger control circuit 254, wherein, this frequency generator 251 is two analog-digital converters 241 with this analog digital modular converter, the central processing unit 15 of this sampling control circuit 252 and this touch-control module 11 connects, and the clock signal of the sampling frequency setting value output respective frequencies of setting according to central processing unit 15 and this two analog-digital converter 241 and this sampling control circuit 252, this sampling control circuit 252 is and this sample storer 253, this trigger control circuit 254 and this display module 12 connect, and the clock signal (being the sampling frequency of analog-digital converter 241) of exporting according to frequency generator 251, the digital data storage that this two analog-digital converter 241 is quantized to export after measured signal is in this sample storer 253, 254 output one trigger pips of this trigger control circuit are given this sampling control circuit 252, make this sampling control circuit 252 in receiving this trigger pip and stop sampling after a stand-by period, and the numerical data that reads a fixed data length (Memory Length) is given this display module 12 as this Wave data output, by this display module 12, show corresponding display waveform, so, when user is with two finger touches, and make two touch points P1, P2 horizontal coordinate mutually near and variable in distance value (
while being greater than start critical value, the frequency level that in this central processing unit 15, sampling frequency setting value is set just reduces one-level, sampling frequency reduces, corresponding waveform image time interval between each sampling spot on horizontal axis just can increase (for example from 200ns/div, becoming 500ns/div), horizontal gear just can turn to compared with low gear, the size of the waveform image that display module 12 shows on horizontal axis just dwindled a grade, otherwise, when user make two touch points P1, P2 horizontal coordinate away from and away from variable in distance value (
while being greater than this start critical value, the frequency level that in this central processing unit 15, sampling frequency setting value is set just increases one-level, sampling frequency increases, corresponding waveform image time interval between each sampling spot on horizontal axis just can reduce (for example from 500ns/div, becoming 200ns/div), make horizontal gear turn to high gear, the size of the waveform image that display module 12 shows on horizontal axis just amplified a grade.
4. move horizontally; Please refer to Figure 1B, Fig. 5 A, 5B and 5C:
Such as leading portion explanation, this sampling control circuit 252 can be after the trigger pip that receives trigger control circuit 254 outputs after a stand-by period output waveform data, or rather, in this sampling control circuit 252, be set with the pre-numerical value Tpre(Pre-trigger of triggering counter) and the rear wait value Tpost(Post-trigger counter of a triggering), and this triggers pre-numerical value Tpre and the rear wait value Tpost of this triggering is the horizontal level setting value h ' conversion of setting according to the central processing unit 15 of this touch-control module 11; Wherein conversion formula is as follows:
Tpre=（H×N/2－h’），h’＝h＋Δh，Δh＝（Δd×N×H）/I
Tpost=（H×N/2＋h’），h’＝h＋Δh，Δh＝（Δd×N×H）/I
Wherein: N is the displayable HORIZONTAL PLAID number of display module 12 (being 10 lattice as shown in Figure 5 C), H is the time value (unit: s/div) that every lattice are corresponding, h is that last time horizontal level was set horizontal axis position (unit: s) corresponding to rear trigger point, horizontal range (the unit: s) that Δ h makes trigger point move for this operation, horizontal axis position (the unit: s) that h ' is positioned at for this rear trigger point of operation correspondence, Δ d is the increase and decrease value of single touch points continuous horizontal coordinate, and I is total pixel of display module 12 horizontal axis.
And in counting, this triggers after pre-numerical value Tpre this sampling control circuit 252, start to receive the trigger pip of trigger control circuit 254 outputs, after receiving this trigger pip, after the time of setting etc. rear wait value Tpost to be triggered, the Digital data processing that reads this fixed data length in sample storer 253 is that this display module is given in corresponding waveform image output, so, when user's touch points P1 moves right, the axial coordinate of continuous horizontal of touch points is tending towards increasing, this triggers pre-numerical value Tpre and is tending towards increasing, after triggering, wait value Tpost is tending towards reducing simultaneously, horizontal axis position corresponding to trigger point is just toward moving to right, the display waveform that display module 12 shows is toward moving to right, otherwise, when user's touch points P1 is moved to the left, the axial coordinate of continuous horizontal of touch points is tending towards reducing, this triggers pre-numerical value Tpre and is tending towards reducing, after triggering, wait value Tpost is tending towards increasing simultaneously, horizontal axis position corresponding to trigger point is just toward moving to left, the display waveform that display module 12 shows is toward moving left (being trigger point shown in Fig. 5 C with respect to the past example moving left of display module centre).
Above-mentioned DC voltage stacking value, enlargement ratio setting value, sampling frequency setting value and the horizontal level setting value that has illustrated that touch-control module 11 central processing units 15 are set makes respectively that the display waveform upright position of display module 12 is moved, vertical gear convergent-divergent, horizontal level moves and horizontal gear convergent-divergent, below sincerely further illustrates the embodiment of 5 kinds of advanced operations:
1. the setting of oblique movement, please further coordinates and consults Fig. 6:
While pulling touch-control gesture operation due to user with single-point, may there is the continuous coordinate on vertical axial and horizontal axis to change simultaneously, therefore this central processing unit 15 lies in while receiving continuous coordinate, judge that whether the angle of single touch points moving direction and horizontal axis formation is between (or 120 degree are between 150 degree) between 30 degree to 60 degree, if not, ignoring the axial seat target that variable quantity is less changes, if, according to vertical axial coordinate, change increase and decrease DC voltage stacking value, and change increase and decrease horizontal level setting value according to horizontal axis coordinate; With in user between 30 degree to 60 degree during (or 120 degree between 150 degree) towing, mobile display waveform on vertical axial and horizontal axis simultaneously, and can simultaneously avoid the misoperation too hour of operating gesture pitch angle.
2. the setting of diagonal angle convergent-divergent, please further coordinates and consults Fig. 7:
In like manner, user is during with multiple spot reverse slide touch-control gesture operation, two touch points also may have simultaneously on vertical axial and horizontal axis away from and close, when therefore this central processing unit 15 lies in the continuous coordinate that receives two touch points, judge two touch points away from and the angle that forms near direction and horizontal axis whether between (or 120 spend between 150 degree) between 30 degree to 60 degree, if not, ignore axial seat target that variable quantity is less away from and close, if, according to vertical axial coordinate away from and near increasing and decreasing respectively enlargement ratio setting value, and according to horizontal axis coordinate away from and near subtracting respectively, increase sampling frequency value, so that in user, between 30 degree to 60 degree, (or 120 degree between 150 degree) carries out zoom operations, vertical gear and the horizontal gear of Zoom display waveform simultaneously, and can avoid the misoperation too hour of operating gesture pitch angle simultaneously.
3. the setting of fast moving, please further coordinates and consults Fig. 8 A and Fig. 8 B:
Above-mentioned Trackpad 13 further detects again a multiple spot towing touch-control gesture, make this organize continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate includes plural touch points, this central processing unit 15 in this plural number touch points of judgement while pulling on vertical axial, the amplitude of this DC voltage stacking value of order increase and decrease is multiplied by an enlargement factor (increase with 10 multiples while moving together as 2 touch points, increase during 3 touch points with 100 multiples); And when this plural number touch points of judgement is pulled on horizontal axis, the amplitude of this horizontal level setting value of order increase and decrease is multiplied by an enlargement factor (while moving together as 2 touch points, increase and decrease amplitude is multiplied by 10 times, is multiplied by 100 times during 3 touch points, is multiplied by 1000 times during 4 touch points); As following formula (act moves horizontally as example):
Δh＝n×（Δd×N×H）/I（n=1、10、100、1000）
So, user can 2 finger towing to accelerate translational speed, or with more finger towings with high-speed mobile more, be convenient to the waveform position of finding fast wish to observe.
4. move at a slow speed, please further coordinate and consult Fig. 9 A and Fig. 9 B:
The present invention further makes again central processing unit 15 be connected with display module 11, and in central processing unit 15, set vertical move operation district O1 and a level move operation district O2 at a slow speed at a slow speed, and by central processing unit 15 output, give display module 12 and show this vertically move operation district O1 and this level move operation district O2 at a slow speed at a slow speed, and single touch points coordinate correspondence during central processing unit 15 judgement single-points towing touch-control gesture is arranged in this vertically at a slow speed during move operation district O1, and the amplitude of this DC voltage stacking value of order increase and decrease is multiplied by a minification (as 1/2 ~ 1/10); And single touch points coordinate correspondence when judgement single-point towing touch-control gesture is arranged in this level at a slow speed during move operation district O2, the amplitude of this horizontal level setting value of order increase and decrease is multiplied by a minification (as 1/2 ~ 1/10); As following formula (act moves horizontally as example):
Δ h=(Δ d * N * H)/(k * I) (k=2 ~ 10 are for better)
Slowed down the speed of mobile display waveform, be convenient to waveform to move on certain ad-hoc location, avoiding pointing when pulling at a slow speed cannot pinpoint problem because producing that small shake causes.
5. inertia moves, more please further coordinates and consult Figure 10:
When user is with single-point towing touch-control gesture, and while throwing away touch points, the coordinate that continuous coordinate now (as P1 ~ Pn in figure) is corresponding is cumulative apart from meeting, the distance of Pn and Pn-1 can be maximum, therefore above-mentioned central processing unit 15 is preset with a deceleration value, and when judging that this variable in distance of organizing continuous coordinate is cumulative, the distance of last two coordinates is set as to a maximum movement value dM, and continue to change horizontal level setting value with this maximum movement value dM, and this maximum movement value dM successively decreases with this deceleration value, until maximum movement value dM reduces to 0(or is less than 0) time stop changing horizontal level setting value.
Comprehensive the above, the present invention is able to touch-control display module for user's this group waveform processing parameter of operation adjustment and shows corresponding display waveform, can save the setting of mechanical knob, to reduce, occupy non-display module space in addition, the whole oscillograph of the size of expanded display module or miniaturization; And the more mechanical knob variation of the method for operating of touch-control gesture, the present invention is integrated in the operation of four kinds of waveform display parameter on a Trackpad again, and the image operation that allows user directly touch waveform makes more intuition and quick of oscillographic operation; The present invention further provides again the mode of operation of fast moving and whipping gesture, be convenient to user's fast moving display waveform to the waveform position of wish observation, also provide and slow down mobile operational zone, being convenient to user moves to display waveform on certain specific position and does accurate location, compared to mechanical knob-operated, the present invention has significantly promoted again operation ease.
The above is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, within not departing from the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (18)
1. a touch oscillograph, is characterized in that: described touch oscillograph system includes:
One touch-display unit, it includes a touch-control module and a display module, and a touch-control gesture detects in described touch-control module system, and is converted to one group of corresponding waveform processing parameter according to described touch-control gesture;
One waveform processing and sampling unit, it is connected with touch-control module and the display module of described touch-display unit, and there is at least one signal input part, to receive at least one outside measured signal, and described measured signal is treated to after the waveform image of a correspondence according to this group waveform processing parameter, output is given described display module and is shown.
2. touch oscillograph according to claim 1, it is characterized in that: described touch-control module includes a Trackpad, one touch control controller and a central processing unit, touch point when described Trackpad system detects user and carries out touch control operation with finger, described touch control controller system is connected with described Trackpad and described central processing unit, and the output one group continuous coordinate corresponding with touch points gives described central processing unit, described central processing unit is organized after continuous coordinate in receiving this, touch-control gesture corresponding to variation judgement touch points according to continuous coordinate, and produce this group waveform processing parameter according to touch-control gesture, and
Described waveform processing and sampling unit include a direct current voltage superposition module, a voltage amplification module, an analog digital modular converter and a digital signal processing module, and the quantity of signal input part is two, described DC voltage superposition module connects described binary signal input end.
3. touch oscillograph according to claim 2, it is characterized in that: described waveform processing parameter comprises a direct current voltage superposition value and a horizontal level setting value, and the Trackpad of described touch-control module detects a single-point towing touch-control gesture, this organizes continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate comprises single touch points towing, described central processing unit changes the DC voltage stacking value described in setting according to the continuous vertical axial coordinate of described single touch points, and change the horizontal level setting value described in setting according to the continuous horizontal axial seat target of described single touch points.
4. touch oscillograph according to claim 3, it is characterized in that: described waveform processing parameter further comprises an enlargement ratio setting value and a sampling frequency setting value, and the Trackpad of described control module detects a multiple spot reverse slide touch-control gesture, make this organize continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate comprises two touch points, described central processing unit according to this organize two touch points in continuous coordinate continuous vertical axial coordinate near and away from the enlargement ratio setting value described in reducing respectively and increasing, and the continuous horizontal axial seat target of organizing two touch points in continuous coordinate according to this near and away from the sampling frequency setting value described in reducing respectively and increasing.
5. touch oscillograph according to claim 4, it is characterized in that: described central processing unit is set a start critical value, and the enlargement ratio setting value that central processing unit is set includes plural multiplying power grade, and in detecting multiple spot reverse slide touch-control gesture two touch points continuous vertical axial coordinate near and away from the multiplying power grade that sets of the enlargement ratio setting value of variable in distance amount described in reducing respectively and increase while being greater than described start critical distance changing value; And
The described sampling frequency setting value that central processing unit is set includes Complex frequency grade, and the continuous horizontal axial seat target of central processing unit two touch points in detecting multiple spot reverse slide touch-control gesture near and away from the frequency level that sets of the sampling frequency setting value of variable in distance amount described in reducing respectively and increase while being greater than described start critical distance changing value.
6. touch oscillograph according to claim 5, it is characterized in that: described DC voltage superposition module comprises two digital analog converters and two voltage superposition devices, two described digital analog converter systems are connected with two described voltage superposition devices respectively, and be connected with the central processing unit of described touch-control module, by the described described DC voltage stacking value of central processing unit output, give two described digital analog converters, two described digital analog converters are exported corresponding DC voltage and are given two described voltage superposition devices after receiving DC voltage stacking value, two described voltage superposition device systems are connected with described binary signal input end respectively, and the DC voltage superposition that corresponding digital analog converter is exported is in measured signal.
7. touch oscillograph according to claim 6, it is characterized in that: described voltage amplification module includes two amplifiers, two described amplifiers connect respectively two described voltage superposition devices, to receive the measured signal through DC voltage superposition, and each amplifier has an enlargement ratio and sets end, the enlargement ratio of each amplifier is set the central processing unit that end system is connected to described touch-control module, makes the multiplying power grade that each amplifier sets according to enlargement ratio setting value in described central processing unit amplify described measured signal.
8. touch oscillograph according to claim 7, it is characterized in that: described analog digital modular converter includes two analog-digital converters, connect respectively two amplifiers of described voltage amplification module, to receive the measured signal through DC voltage superposition and amplification, and described measured signal is sampled and is quantified as numerical data; And
Described digital signal processing module includes a frequency generator, sampling control circuit, a sample storer and a trigger control circuit, wherein:
The central processing unit of two analog-digital converters of described frequency generator system and described analog digital modular converter, described sampling control circuit and described touch-control module is connected, and according to the sampling frequency setting value of central processing unit setting, exports clock signal and described two analog-digital converters and the described sampling control circuit of respective frequencies;
Described sampling control circuit system and described sample storer, described trigger control circuit and described display module are connected, and the clock signal of exporting according to frequency generator, the digital data storage that two described analog-digital converters are quantized to export after measured signals is in described sample storer;
Described trigger control circuit is exported a trigger pip and is given described sampling control circuit, make described sampling control circuit in the described trigger pip of reception and after a stand-by period, read the numerical data of a fixed data length and give described display module as described Wave data output, by described display module, show corresponding display waveform.
9. touch oscillograph according to claim 8, it is characterized in that: wait value Tpost after being set with the pre-numerical value Tpre of a triggering and in described sampling control circuit and triggering, and the horizontal level setting value h ' that the pre-numerical value Tpre of described triggering and the described rear wait value of triggering Tpost system set according to the central processing unit of described touch-control module converts; Wherein conversion formula is as follows:
Tpre=（H×N/2－h’），h’＝h＋Δh，Δh＝（Δd×N×H）/I
Tpost=（H×N/2＋h’），h’＝h＋Δh，Δh＝（Δd×N×H）/I
Wherein: N is the displayable HORIZONTAL PLAID number of display module, H is the time value (unit: s/div) that every lattice are corresponding, h is that last time horizontal level was set horizontal axis position (unit: s) corresponding to rear trigger point, horizontal range (the unit: s) that Δ h makes trigger point move for this operation, horizontal axis position (the unit: s) that h ' is positioned at for this rear trigger point of operation correspondence, Δ d is the increase and decrease value of single touch points continuous horizontal coordinate, and I is total pixel of display module horizontal axis;
And described sampling control circuit is after the described pre-numerical value Tpre of triggering of counting, start to receive the trigger pip of trigger control circuit output, after receiving described trigger pip, after the time of setting etc. rear wait value Tpost to be triggered, the Digital data processing that reads described fixed data length in sample storer is that described display module is given in corresponding waveform image output.
10. touch oscillograph according to claim 9, it is characterized in that: described central processing unit lies in while receiving continuous coordinate, judge that angle that single touch points moving direction and horizontal axis form is whether between 30 degree to 60 degree, if not, ignoring the axial seat target that variable quantity is less changes, if so, according to vertical axial coordinate, change increase and decrease DC voltage stacking value, and change increase and decrease horizontal level setting value according to horizontal axis coordinate.
11. touch oscillographs according to claim 10, it is characterized in that: when described central processing unit lies in the continuous coordinate that receives two touch points, judge two touch points away from and near the angle of direction and horizontal axis formation whether between 30 degree to 60 degree, if not, ignore axial seat target that variable quantity is less away from and close, if, according to vertical axial coordinate away from and near increasing and decreasing respectively enlargement ratio setting value, and according to horizontal axis coordinate away from and near increasing and decreasing respectively sampling frequency value.
12. touch oscillographs according to claim 11, it is characterized in that: described Trackpad further detects a multiple spot towing touch-control gesture, make this organize continuous vertical axial coordinate and the axial coordinate of continuous horizontal that continuous coordinate includes plural touch points, described central processing unit when the described plural touch points of judgement is pulled on vertical axial, the amplitude of the DC voltage stacking value that order increase and decrease is described is multiplied by an enlargement factor; And when the described plural touch points of judgement is pulled on horizontal axis, the amplitude of the horizontal level setting value described in order increase and decrease is multiplied by an enlargement factor.
13. touch oscillographs according to claim 12, it is characterized in that: described central processing unit is further connected with described display module, and in central processing unit, set vertical move operation district and a level move operation district at a slow speed at a slow speed, and by central processing unit output, give display module and show described vertical move operation district at a slow speed and described level move operation district at a slow speed, and single touch points coordinate correspondence during central processing unit judgement single-point towing touch-control gesture is arranged in described vertically at a slow speed during move operation district, the amplitude of the DC voltage stacking value that order increase and decrease is described is multiplied by a minification, and single touch points coordinate correspondence when judgement single-point towing touch-control gesture is arranged in described level at a slow speed during move operation district, the amplitude of the described horizontal level setting value of order increase and decrease is multiplied by a minification.
14. touch oscillographs according to claim 13, it is characterized in that: described central processing unit is preset with a deceleration value, and when judging that this variable in distance of organizing continuous coordinate is cumulative, the distance of last two coordinates is set as to a maximum movement value, and continue to change horizontal level setting value with described maximum movement value, and described maximum movement value successively decreases with described deceleration value.
15. 1 kinds of oscillographic waveforms of touch show touch operation method, it is characterized in that: wherein, described oscillograph is provided with one in order to detect the touch-display unit of touch-control gesture and display waveform image, and described waveform demonstration touch operation method lies in after described oscillograph receives a measured signal and carries out, and comprises the following steps:
From described touch-display unit, receive one group of waveform processing parameter, wherein said waveform processing system of parameters produces according to the variation of its touch-control gesture detecting according to described touch-display unit;
According to this group waveform processing parameter, described measured signal is treated to the waveform image of a correspondence;
Waveform image output to described touch-display unit is shown.
The oscillographic waveform of 16. touch according to claim 15 shows touch operation method, it is characterized in that:
Described touch-control gesture comprises single-point towing touch-control gesture and a multiple spot reverse slide touch-control gesture;
Described waveform processing parameter comprises a direct current voltage superposition value, an enlargement ratio setting value, a sampling frequency setting value and a horizontal level setting value.
The oscillographic waveform of 17. touch according to claim 16 shows touch operation method, it is characterized in that:
The step that produces this group waveform processing parameter according to described touch-display unit according to the variation of its touch-control gesture detecting comprises:
If detect described single-point towing touch-control gesture, the vertical axial coordinate of the single touch points of foundation changes the DC voltage stacking value described in setting continuously, and changes continuously the horizontal level setting value described in setting according to the horizontal axis coordinate of single touch points;
If detect described multiple spot reverse slide touch-control gesture, according to the vertical axial coordinate of multiple spot reverse slide touch-control gesture two touch points near and away from reducing respectively and increase described enlargement ratio setting value, and according to the horizontal axis coordinate of multiple spot reverse slide touch-control gesture two touch points near and away from the sampling frequency setting value described in reducing respectively and increasing.
The oscillographic waveform of 18. touch according to claim 17 shows touch operation method, it is characterized in that: in oscillograph, be further set with the pre-numerical value Tpre of a triggering and and trigger rear wait value Tpost, and according to this group waveform processing parameter, described measured signal is treated to corresponding waveform image, it comprises following steps:
According to DC voltage stacking value superposition one DC voltage on described measured signal;
According to enlargement ratio setting value, amplify measured signal;
After display being sampled and be digitized as numerical data according to sampling frequency setting value, store;
According to horizontal level setting value h ', set the described pre-numerical value Tpre of triggering and the described rear wait value of triggering Tpost, its conversion formula is as follows:
Tpre=（H×N/2－h’），h’＝h＋Δh，Δh＝（Δd×N×H）/I
Tpost=（H×N/2＋h’），h’＝h＋Δh，Δh＝（Δd×N×H）/I
Wherein: N is the displayable HORIZONTAL PLAID number of oscillograph, H is the time value (unit: s/div) that every lattice are corresponding, h is the horizontal level (unit: s) after last time moving horizontally, Δ h is the mobile horizontal range (unit: s) of this operation, h ' is the rear horizontal axis of this operation position (unit: s), Δ d is the increase and decrease value of single touch points continuous horizontal coordinate, and I is the displayable total pixel of oscillograph horizontal axis;
And after the described pre-numerical value Tpre of triggering of counting, receive a trigger pip, and etc. rear wait value Tpost to be triggered after time of setting, read the numerical data of described fixed data length and export to show corresponding display waveform as described Wave data.
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