CN102707114A - Waveform control method of digital oscilloscope - Google Patents
Waveform control method of digital oscilloscope Download PDFInfo
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- CN102707114A CN102707114A CN2012101938763A CN201210193876A CN102707114A CN 102707114 A CN102707114 A CN 102707114A CN 2012101938763 A CN2012101938763 A CN 2012101938763A CN 201210193876 A CN201210193876 A CN 201210193876A CN 102707114 A CN102707114 A CN 102707114A
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Abstract
The invention discloses a waveform control method of a digital oscilloscope, comprising the following steps of: enabling the horizontal direction of a touch screen to correspond to a time shaft of an input signal and the vertical direction of the touch screen to correspond to an amplitude shaft of the input signal; dividing a passage position regulation area, a triggering level regulation area and a triggering time regulation area on the relative position of a screen within a screen area according to a passage position indicator, a triggering time indicator and a triggering level indicator of the digital oscilloscope, determining a waveform scaling regulation area by taking a waveform display area as a center; then determining the CPU (Central Processing Unit) of the digital oscilloscope to execute the following operation according to an area of the touch position of a user: executing current passage switching or moving a waveform along the vertical direction when the passage position regulation area is touched, executing current triggering passage switching or regulating a triggering level when the triggering level regulation area is touched, and moving the waveform along the horizontal direction when the triggering time regulation area is touched. The invention has the advantage that the user can intuitively control various user interface objects already displayed on the screen.
Description
Technical field
The present invention relates to digital oscilloscope, especially relate to digital oscilloscope waveform control method.
Background technology
Traditional digital oscilloscope generally uses mechanical parts such as button, knob to control.The button that the user controls, knob and the waveform display effect of being controlled and be not conspicuous with relation between the various screen objects that current waveform display effect is associated; As far as the user, above-mentioned traditional control mode seems not directly perceived.In addition; For a plurality of parameters to a plurality of passage waveforms are controlled; Certainly will introduce the button and the knob of a large amount of separation, the cost of product improves inevitably, and the user is when controlling waveform; Need sight line and notice be shifted between screen and control panel back and forth, also influence analytical work and possibly cause fatigue.
Chinese invention patent CN (101413968) B discloses the method that bar shaped touching device that a kind of use separates with display screen is handled display waveform, and it has reduced the quantity of button, but still has weak point:
1, the new touching device of introducing is only supported the one dimension operation, and display interface is two-dimentional; Therefore, the touch pad that does not possess two-dimentional input capability can't carry out effective recognition and control a plurality of pictorial elements that are presented on the two dimensional surface;
2, only comprised switching when a kind of function of prepass;
3, in order to select specific waveform; This invention has proposed the notion of waveform blinkpunkt; According to the explanation in the instructions; The waveform blinkpunkt is equivalent to the highs and lows projection in vertical direction that a waveform shows on screen, the foundation of selecting waveform is promptly based on these two virtual points, and is not directly perceived.
Summary of the invention
The object of the invention is to provide a kind of waveform of digital oscilloscope more intuitively control method, by means of the user click and the drag operation of touch-screen is come the oscillographic waveform demonstration of control figure easily.
For realizing above-mentioned purpose, the present invention takes following technical proposals:
Digital oscilloscope waveform control method of the present invention comprises the touch-screen digital oscilloscope; The time shaft of the corresponding input signal of the horizontal direction of said touch-screen, the amplitude axis of the corresponding input signal of vertical direction; Channel position indicator, triggering moment indicator, the relative position of triggering level indicator on said screen according to said digital oscilloscope; In screen area, mark off channel position regulatory region, triggering level regulatory region, trigger regulatory region constantly, and be that waveform convergent-divergent regulatory region is set at the center with the waveform viewing area; According to the user touch location region, set digital oscilloscope CPU and carry out following operation then:
When touching the channel position regulatory region, carry out when the prepass switching or with waveform moving in the vertical direction;
When touching the triggering level regulatory region, carry out current trigger port switching or regulate triggering level;
When touch triggering moment regulatory region, the waveform along continuous straight runs is moved;
When touching waveform convergent-divergent regulatory region, current passage waveform along continuous straight runs is amplified or dwindles;
When the user dragged on touch-screen continuously, digital oscilloscope CPU judged at first whether current touch location is positioned at outside the last touch location region; In this way, cancel the operation that the user is done in last once touch location region;
When user touch location is positioned at waveform convergent-divergent regulatory region, drag in the process, on screen, draw the prompting frame that an expression user drags scope;
The user at first with moving to screen center with position, said prompting frame center superposed part along continuous straight runs in the current passage waveform display plane, amplifies before current passage waveform is amplified again.
The invention has the advantages that the two-dimensional localization ability that has made full use of touch-screen, make the user to control the various user interface object that are presented on the screen intuitively; By the powerful arithmetic capability of CPU, control in the process can be on screen in real time explicit user control situation, give the user feedback with necessity, make control more directly perceived.The scope of controlling of touch-screen no longer is confined to menu selection, this type of dialog box operation simple user interface processing, reaches the purpose of controlling the waveform demonstration through click and drag kick to various screen objects and wave regions.Such as, need move with regard to this task along time shaft the waveform of special modality with regard to the user, the user can be directly drag along time shaft in the indicator moving area triggering constantly; In the process that drags; The same thereupon moved further of passage waveform image, user experience is very directly perceived, and convenient.In addition; The function that this patent provides along the time shaft scaled waveform; Simplified the traditional control mode of user especially widely; That is: in order to observe the waveform details of specific region, the user need at first use button or knob with the waveform aligned in position of required observation to center Screen, bay amplifies when regulating then.And now user institute will do, and only is through the selected wave regions that needs observation of touch-screen, not much else, has simplified operation steps of user.For as mentioning among Chinese invention patent CN (101413968) B; Use touch-screen to control when screen is bigger; The user controls the problem of long easy fatigue of time, and the touch-screen that the user can use a micro screen and match can reach good controlling equally and experience and effect.
Description of drawings
Fig. 1 is the digital oscilloscope screen display reference diagram in the embodiment of the invention.
Fig. 2 is the control flow chart of digital oscilloscope CPU according to the invention.
Embodiment
Like Fig. 1, shown in 2, digital oscilloscope waveform control method of the present invention comprises the touch-screen digital oscilloscope; With reference to figure 1, the time shaft of the horizontal direction respective signal of oscillograph screen, the amplitude axis of the vertical direction respective signal of screen; Comprise the channel position indicator on the screen, trigger indicator and these user interface object of triggering level indicator constantly.The channel position indicator is used to characterize the relative position of special modality on amplitude axis, the projected position of the corresponding in this example special modality zero level of this relative position on amplitude axis; Trigger indicator constantly and be used to characterize the relative position that triggers constantly with screen; The triggering level indicator is used to represent the size of triggering level.Said oscillographic screen area can mark off like lower area according to the possible scope of activities of these user interface object: channel position regulatory region, triggering be regulatory region, triggering level regulatory region constantly; Whole in addition waveform viewing area, promptly as shown in Figure 1, the grid region of center Screen can be set to waveform convergent-divergent regulatory region.
(left can be used in these zones; Top, right, bottom) rectangle of four-tuple representative is represented; Left representes the horizontal ordinate in the said regional upper left corner; Top representes the ordinate in the said regional upper left corner, and right representes the horizontal ordinate in the said regional lower right corner, and bottom representes the ordinate in the said regional lower right corner.
For each dividing region; With the channel position regulatory region is that example is explained: said channel position regulatory region should comprise the scope of activities of said channel position indicator at least; But because channel position indicator itself is very little; In actual solution, can said zone correspondingly be enlarged, be convenient to user's operation.The division that triggers moment regulatory region and triggering level regulatory region is repeated no more according to similarly here.For the convenience of controlling, the scope of waveform convergent-divergent regulatory region also can be more bigger than the grid region of said center Screen, even expand to whole screen area.What deserves to be mentioned is that the above-mentioned zone after the expansion may overlap each other, but can know that it can not controlled the user and impact by following narration.
The user clicks on touch-screen or during drag operation, the touch-screen control module can the user is current (x y) sends CPU to, and CPU is easy to judge said click location and is positioned at which predefine zone with the coordinate figure of touch-screen contact point.It is very simple to judge whether a point falls into the algorithm of rectangle frame, and current algorithm is arranged, and repeats no more here.As previously mentioned, possibly have common factor between four screen areas, so, when carrying out the judgement of contact point place screen area, can judge in certain sequence, recommend to use following mode:
Judge at first whether contact point is positioned at touch channel position regulatory region;
Next judges whether contact point is positioned at the triggering level regulatory region;
Judge then whether contact point is positioned at triggering regulatory region constantly;
Judge at last whether contact point is positioned at waveform convergent-divergent regulatory region.
In case judge that contact point falls into said screen area, just no longer carry out follow-up judgement.
As previously mentioned; Possibly have between each zone overlapping, in order to adapt to the situation that overlaps each other between each zone, when the user drags on touch-screen continuously; Judge at first whether current touch location is positioned at outside the last touch location region; As still in last once touch location region, the operation of then still being correlated with in last once touch location region according to touch location---so just part has been eliminated the overlapping interference to user's operation between each screen area, and which zone is the reference position no matter user drags continuously be positioned at; Can in the entire scope in said zone, freely drag, not receive the influence of region overlapping relation.
Because each dividing region is sightless as far as the user on the screen; The user also can not accomplish accurately absolute to the operation of touch-screen; So the reference position that the user clicks and drags at touch-screen is positioned at beyond the zone of user expectation probably, is positioned at the overlapping region of two adjacent areas such as the initial touch location of user.But, left the initial position region in case subsequent user drags continuously, and got in the zone of user expectation, system just can correctly identify the user region so, and makes correct feedback.Certainly; Because before the user operates in getting into desired region; Oscillograph has been made the unwanted feedback of some users; So when the user drags continuously,, then cancel the operation that the user is done in last once touch location region on touch-screen if current touch location is positioned at outside the last touch location region.
For example; User's click location is positioned at the channel position regulatory region; When CPU receives touch-screen click message; Can be successively relatively the current click location of user concern with position between current each channel position indicator that is in show state, when detecting distance between them, then the represented passage of corresponding channel position indicator is switched to and works as prepass less than preset threshold value Δ t; If in the current click location Δ of the user t scope a plurality of channel position indicators are arranged, then can switch at these interchannels with predefined order (such as the inner cable quotation marks of system) for these passages uses.If do not have the channel position indicator in the current click location Δ t scope, then do not change when the prepass setting.If current on the screen have only a passage to be in show state, can know by above-mentioned narration, when prepass remains unchanged.
Receiving that touch-screen clicks message and carry out above-mentionedly before the prepass change action, CPU can write down and work as prepass; After change action is accomplished; When perhaps touch-screen drags the message arrival for the first time (this moment, user's the last touch-screen click action did not occur in the channel position regulatory region); Also can write down when the relative position of prepass in amplitude axis; If the user drags the position continuously and leaves the channel position regulatory region, CPU can cancel the operation of being done at the channel position regulatory region according to the information of these preservations.
If subsequent user continues in the channel position regulatory region, to carry out drag operation; Then oscillograph be easy to said drag operation with move and be mapped when the position of prepass on amplitude axis; By powerful CPU processing power, the effect after display waveform moves in real time.
When the user was triggering that regulatory region carries out drag operation constantly, similar with above processing procedure, oscillograph was easy to said drag operation and the change that triggers when prepass constantly with the screen relative position are mapped.Equally; In first click; Or for the first time touch-screen drag message when arriving (this moment the user the last touch-screen click action do not occur in trigger regulatory region constantly); CPU can write down when the triggering of prepass constantly and the relative position of screen leave when triggering constantly regulatory region so that the user drags the position continuously, cancel and triggering the work that regulatory region is constantly done.
When the user when the triggering level regulatory region carries out clicking operation; When if the active user adopts this type of logical triggering to relate to the triggering mode of two trigger ports; At first can carry out the switching of current trigger port; CPU is the relative position of the current click location of user and two triggering level indicators relatively successively, if detect distance between them less than preset threshold value Δ t, then current trigger port is switched to the trigger port of correspondence; If two trigger ports all are positioned at current click location Δ t scope, then between these two trigger ports, switch with predefined order.If do not have the triggering level indicator in the current click location Δ t scope, then do not change when the prepass setting.If current trigger port has only one, can know that by above-mentioned narration current trigger port remains unchanged.
Before receiving that touch-screen click message is carried out above-mentioned trigger port change action, CPU can write down current trigger port; After change action is accomplished; When perhaps touch-screen drags the message arrival for the first time (this moment, user's the last touch-screen click action did not occur in the triggering level regulatory region); Also can write down the triggering level value of current trigger port; If the user drags the position continuously and leaves the triggering level regulatory region, CPU can cancel the operation of being done at the triggering level regulatory region according to the information of these preservations.
If subsequent user continues in the triggering level regulatory region, to carry out drag operation, then oscillograph is easy to said drag operation, converts the change of current trigger port triggering level value into.
No matter at which screen area click, system all can write down the last touch-screen and click residing position.When the user dragged at waveform convergent-divergent regulatory region, oscillograph can show a prompting frame, and this prompting frame can be plotted as a rectangle frame, corresponding said the last touch-screen click location in the position of its diagonal line two-end-point and the current position that drags; Prompting frame also can be plotted as an ellipse that is positioned at said rectangle frame scope, and perhaps other are used to indicate that the user drags the prompting frame of scope.
If said touch location is positioned at outside the waveform viewing area; For fear of the rectangle frame of drawing the demonstration of other user interface object is caused interference; Can revise said touch location; Such as, can be point nearest on the border, said waveform viewing area with position correction apart from this touch location.
Along with constantly dragging of user, this prompting frame is constantly repainted, to indicate the up-to-date scope that drags.If when drawing new prompting frame, on screen, drawn prompting frame, then at first wiped the prompting frame of original drafting, and then draw new prompting frame.
When the user finally lifted finger and finishes to drag, oscillograph finally dragged the relativeness of the initial click location of position and storage according to the user, determines waveform is amplified, and still dwindles.For example, oscillograph can stipulate finally to drag the position when initial click location left side, waveform is amplified, otherwise dwindle; Perhaps oscillograph can be stipulated, finally drags the position below initial click location the time, waveform is amplified, otherwise dwindle.
The ratio of amplifying and dwindling, can with drag frame and screen and connect in the difference aspect the physical size.Such as, if the corresponding time shaft of oscillographic horizontal direction, and user's drag operation is identified as the waveform amplification; If drag width of frame is 100, and the indication range of overall waveform display window is 500, then can with the time bay be contracted to original twice.If dragging the width of frame is 200, then can with the time bay only be contracted to original one times.
Amplify and dwindle that to be limited in time shaft be to carry out on the X axle.This is because respective channel zero level position generally can not be positioned at outside the waveform viewing area in the projection on the amplitude axis, and we are difficult to certain interval on the amplitude axis is aligned to center Screen and amplification.
Because final oscillograph for user's drag operation, can be identified as amplification and dwindle two kinds of actions, so when drawing said prompting frame; Lift when finger according to the user in the current position that drags; Oscillograph can be carried out amplification, or reduction operation, can prompting frame be shown as two kinds of different patterns; Such as one be single-line box, one is the two-wire frame; Perhaps one is solid box, and one is frame of broken lines; Perhaps at one jiao of demonstration " amplification " or " dwindling " printed words of prompting frame.
For the waveform amplifieroperation, before amplifying, can at first move to screen center in the waveform viewing area that the center of said prompting frame is corresponding, and then amplify along time shaft.Oscillograph amplifies and aligning screen center along time shaft the just approximate wave regions that equals the user is selected of feedback of user's operation like this.
Claims (1)
1. a digital oscilloscope waveform control method comprises the touch-screen digital oscilloscope; The time shaft of the corresponding input signal of the horizontal direction of said touch-screen, the amplitude axis of the corresponding input signal of vertical direction; It is characterized in that: according to channel position indicator, triggering moment indicator, the relative position of triggering level indicator on said screen of said digital oscilloscope; In screen area, mark off channel position regulatory region, triggering level regulatory region, trigger regulatory region constantly, and be that waveform convergent-divergent regulatory region is set at the center with the waveform viewing area; According to the user touch location region, set digital oscilloscope CPU and carry out following operation then:
When touching the channel position regulatory region, carry out when the prepass switching or with waveform moving in the vertical direction;
When touching the triggering level regulatory region, carry out current trigger port switching or regulate triggering level;
When touch triggering moment regulatory region, the waveform along continuous straight runs is moved;
When touching waveform convergent-divergent regulatory region, current passage waveform along continuous straight runs is amplified or dwindles;
When the user dragged on touch-screen continuously, digital oscilloscope CPU judged at first whether current touch location is positioned at outside the last touch location region; In this way, cancel the operation that the user is done in last once touch location region;
When user touch location is positioned at waveform convergent-divergent regulatory region, drag in the process, on screen, draw the prompting frame that an expression user drags scope;
The user at first with moving to screen center with position, said prompting frame center superposed part along continuous straight runs in the current passage waveform display plane, amplifies before current passage waveform is amplified again.
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| CN103176010A (en) * | 2013-02-01 | 2013-06-26 | 华中科技大学 | System and method for oscilloscope remote touch method |
| CN103809808A (en) * | 2014-01-25 | 2014-05-21 | 深圳麦科信仪器有限公司 | Method and device for horizontal movement of waveform based on touch screen |
| CN103902221A (en) * | 2014-03-26 | 2014-07-02 | 深圳麦科信仪器有限公司 | Touch oscilloscope cursor operating method and device |
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| CN105092919A (en) * | 2014-05-04 | 2015-11-25 | 固纬电子实业股份有限公司 | Gear switching method of touch control type measurement instrument |
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| CN103176010B (en) * | 2013-02-01 | 2016-08-31 | 华中科技大学 | Method for oscilloscope remote touch method |
| CN104181365A (en) * | 2013-05-24 | 2014-12-03 | 苏州普源精电科技有限公司 | Measurement device with zoom display function |
| CN104181365B (en) * | 2013-05-24 | 2019-01-29 | 苏州普源精电科技有限公司 | A kind of measuring device with zooming display function |
| CN104374968B (en) * | 2013-08-17 | 2018-05-25 | 苏州普源精电科技有限公司 | A kind of mixing oscillograph with Multifunctional knob |
| CN104374968A (en) * | 2013-08-17 | 2015-02-25 | 苏州普源精电科技有限公司 | Mixture oscilloscope with multifunctional knob |
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| CN103809808A (en) * | 2014-01-25 | 2014-05-21 | 深圳麦科信仪器有限公司 | Method and device for horizontal movement of waveform based on touch screen |
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| CN103941064A (en) * | 2014-03-26 | 2014-07-23 | 深圳麦科信仪器有限公司 | Callout method and device for waveform display zoon or delay window of touch-control oscilloscope |
| CN103902221B (en) * | 2014-03-26 | 2017-08-11 | 深圳麦科信仪器有限公司 | The operating method and device of a kind of touch-control oscillograph cursor |
| CN103902221A (en) * | 2014-03-26 | 2014-07-02 | 深圳麦科信仪器有限公司 | Touch oscilloscope cursor operating method and device |
| CN103901244A (en) * | 2014-03-26 | 2014-07-02 | 深圳麦科信仪器有限公司 | Method and device for arrangement and operation of signal channels of touch oscilloscope |
| WO2015143774A1 (en) * | 2014-03-26 | 2015-10-01 | 深圳麦科信仪器有限公司 | Touchscreen-based method for adjusting vertical and horizontal systems of oscilloscope |
| CN103941980A (en) * | 2014-04-17 | 2014-07-23 | 深圳麦科信仪器有限公司 | Method and device for transversely moving waveform of touch oscilloscope in horizontal and vertical directions |
| CN105092919A (en) * | 2014-05-04 | 2015-11-25 | 固纬电子实业股份有限公司 | Gear switching method of touch control type measurement instrument |
| CN104502657B (en) * | 2014-12-25 | 2017-07-07 | 中国电子科技集团公司第四十一研究所 | Digital waveform manipulation module and its method |
| CN104502657A (en) * | 2014-12-25 | 2015-04-08 | 中国电子科技集团公司第四十一研究所 | Digital waveform control module and digital waveform control method |
| CN106227448A (en) * | 2016-07-22 | 2016-12-14 | 乐视控股（北京）有限公司 | Control method, control device and the terminal unit that waveform shows |
| CN106249976A (en) * | 2016-08-15 | 2016-12-21 | 中国电子科技集团公司第四十研究所 | A kind of multi-touch method for digital oscilloscope touch screen |
| CN108254607A (en) * | 2016-12-28 | 2018-07-06 | 北京普源精电科技有限公司 | Digital oscilloscope method for displaying waveform and device |
| CN110441572B (en) * | 2019-06-28 | 2022-07-08 | 深圳麦科信科技有限公司 | Touch type digital oscilloscope and waveform selection method thereof |
| CN110441572A (en) * | 2019-06-28 | 2019-11-12 | 深圳麦科信仪器有限公司 | Touch digital oscilloscope and its waveform selection method |
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Application publication date: 20121003 |