CN103149402A - Oscilloscope with functions of recording and replaying wave forms - Google Patents
Oscilloscope with functions of recording and replaying wave forms Download PDFInfo
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Abstract
The invention provides an oscilloscope with the functions of recording and replaying wave forms. The oscilloscope with the functions of recording and replaying the wave forms comprises a wave form recording unit, a continued playing knob and a playing control unit, wherein the wave form recording unit is used for storing wave form data and obtaining multi-frame recording wave forms, the continued playing knob is used for generating corresponding angle information according to a rotation angle of the continued playing knob, and the playing control unit is used for obtaining corresponding inter-frame play time intervals and a play order according to the angle information and playing the multi-frame recording wave forms according to current obtained inter-frame play time intervals and the play order. According to the oscilloscope with the functions of recording and replaying the wave forms, when the number of frames of the recording wave forms is large, continuous playing in the multi-frame recording wave forms can be rapidly carried out, and convenience is brought to fast browsing by users. In addition, the inter-frame play time intervals and the play order can be changed through adjustment of the angle of the knob. Therefore, playing speed and the playing order are flexibly and dynamically adjusted.
Description
Technical field
The present invention relates to the thermometrically technical field, particularly relate to a kind of oscillograph with waveform recording playback function.
Background technology
The waveform recording function is a critical function of digital oscilloscope, and it is that the Wave data that will collect in one period continuous time is stored in the designated space of oscillographic storer (being also the waveform recording unit).Common, after the waveform recording function on, the Wave data that oscillograph can arrive with circulation storage mode storage multi collect, the Wave data that at every turn collects is stored as a frame and records waveform, and each frame is recorded the storage depth that the length of waveform equals to set.Recording process namely is equivalent to the storing process of Wave data.The Wave data that at every turn collects is stored in the different addresses of storer, after completing the recording of a frame waveform, memory address will jump to next address automatically, carries out recording of next frame waveform, circulation successively, thus the multiframe that the frame number that obtains being arranged in order increases progressively is gradually recorded waveform.
Accordingly, oscillograph also has a waveform recording playback function, namely after waveform recording is completed, can play the waveform of each frame of having recorded.As shown in Figure 1, be the schematic diagram of a kind of waveform recording playback of prior art.The existing method of recording wave shape playback is that a knob 101 with a plurality of rotating scale lattice is set on oscillographic guidance panel, by rotating this knob 101, control current broadcast the frame number of recording waveform increase or successively decrease, obtain from waveform recording unit 102 current frame number corresponding record waveform, and it is shown in display unit 103, be convenient to the user and check the waveform of recording of specifying frame number.In the above methods, check that a frame records waveform, at first the user wants turning knob, can be rotated in the forward or reverse rotation, and scale lattice of every rotation are a stepping, and each stepping is play the frame number of recording waveform and increased progressively one or successively decrease one.The method of this employing step-by-step system control waveform playback, the step value minimum of knob is necessary for one.The method can produce following problem:
1). when the frame number of recording waveform is a lot, the user repeatedly turning knob just can be accumulated to specify frame number corresponding record waveform, what realize in the turning knob process is that one by one single frames is play, can only the increasing or decreasing frame number, can not realize recording the quick playback of waveform and the function of dynamic adjustments playback speed, playback speed is slower.
2) if. record in multiframe and carry out redirect in waveform and play, the frame number of current broadcast directly can be set to user's appointment frame number, specify the message Long-distance Control oscillograph of frame number by transmission, such as frame number directly is set to 1000 from 10, the waveform of recording that shows on that display interface has directly become the 1000th frame from the 10th frame, so, the 11st frame to the 999 interframe records waveform and can not be presented on screen in revising the process of frame number.
3). in the high sampling rate oscillograph, the wave form varies of adjacent two frames is very little, and the user is common and the incomplete waveform shape of understanding particular frame, tells particular frame than more quickly, and is very difficult.Therefore provide a kind of method for user's fast browsing waveform necessary.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of oscillograph with waveform recording playback function, can record waveform for user's fast browsing.
In order to address the above problem, the invention discloses a kind of oscillograph with waveform recording playback function, comprising:
The waveform recording unit is used for the stored waveform data, obtains multiframe and records waveform;
Playing control unit is used for playing described multiframe and records waveform;
Also comprise: play continuously knob, be used for producing corresponding angle message according to its anglec of rotation;
Described playing control unit is used for obtaining corresponding interframe reproduction time interval and playing sequence according to described angle message; And according to current interframe reproduction time interval and the playing sequence that obtains, play described multiframe and record waveform.
The present invention can when the frame number of recording waveform be more, record in waveform in multiframe and play continuously rapidly; And, can pass through adjusting knob Angulation changes interframe reproduction time interval and playing sequence, thus dynamic adjustments broadcasting speed and playing sequence flexibly.By fast browsing, the user can roughly understand the information such as variation tendency of waveform, can reduce in interested place the broadcasting speed of recording waveform, thereby carry out minute observation; Can improve the broadcasting speed of waveform in uninterested place, save the browsing time of waveform.
Illustrate as one, playing control unit of the present invention is used for according to described angle message, obtains the interframe reproduction time interval with the big or small inversely proportional relation of the described anglec of rotation.
Illustrate as one, playing control unit of the present invention is used for obtaining described interframe reproduction time interval and playing sequence according to described angle message from one group of initialize data corresponding with playing sequence and interframe reproduction time interval.
Illustrate as one, playing control unit of the present invention also is used for User default start frame and abort frame, the last frame that shows before the described start frame of initial play, abort frame or recording and playback function record waveform; Then, more current interframe reproduction time interval and the playing sequence that obtains of foundation, the waveform of recording in described start frame and abort frame scope play.
Illustrate as one, continuous broadcast knob of the present invention is used for producing corresponding forward play message in the first rotation angle range, produces corresponding reverse-play message in the second rotation angle range; Described playing control unit is used for according to described forward play message, obtains the forward play order that frame number increases progressively; According to described reverse-play message, obtain the reverse-play order that frame number successively decreases.
As an example, originally illustrate the described anglec of rotation of rotary manipulation generation that described described continuous broadcast knob is used for User; And when the user discharges described rotary manipulation, automatically restore to the zero anglec of rotation under original state.
As an example, originally illustrate the rotary manipulation of described continuous broadcast knob User, turn clockwise when spending less than 180 from described zero anglec of rotation, produce the anglec of rotation that is in the first rotation angle range; Be rotated counterclockwise when spending less than 180 from described zero anglec of rotation, produce the anglec of rotation that is in the second rotation angle range.
As an example, originally illustrate described continuous broadcast knob and be used for producing a zero degree message in described zero anglec of rotation; Described playing control unit also is used for stopping playing described multiframe according to described zero degree message and records waveform.
As an example, originally illustrate described playing control unit at the current playing sequence that obtains and the front playing sequence that once obtains not simultaneously, first suspend the described multiframe of broadcast and record waveform, afterwards, according to current interframe reproduction time interval and the playing sequence that obtains, continue to play described multiframe and record waveform again.
As an example, originally illustrate the current broadcast user preset of described playing control unit abort frame record waveform the time, according to described forward play order, stop playing described multiframe and record waveform.
As an example, originally illustrate the current broadcast user preset of described playing control unit start frame record waveform the time, according to described reverse-play order, stop playing described multiframe and record waveform.
Illustrate as one, playing control unit of the present invention comprises:
The waveform display module is used for recording waveform from described multiframe and reads a frame and record waveform, is sent to the waveform display module as current broadcast frame; And the stand-by period after current broadcast frame is sent to the waveform display module is when reaching described interframe reproduction time interval, obtain a frame adjacent with the frame number of current broadcast frame according to described playing sequence and record waveform, be sent to the waveform display module as new current broadcast frame;
The waveform display module, the current broadcast frame update displayed that is used for receiving is at display screen.
As an example, originally illustrate described waveform display module and according to described forward play order, the frame number of current broadcast frame is increased progressively one, and the corresponding frame of frame number that obtains after increasing progressively records waveform, be sent to display module as new current broadcast frame; Described waveform display module successively decreases one according to described reverse-play order to the frame number of current broadcast frame, and the corresponding frame of frame number that obtains after successively decreasing records waveform, is sent to display module as new current broadcast frame.
Illustrate as one, oscillograph of the present invention also comprises:
Single frames is play knob, is used for producing the stepping message of one when a stepping scale of its rotation;
Described playing control unit also is used for according to described stepping message, reads a frame adjacent with current broadcast frame and records waveform and play.
Originally illustrate and both can utilize continuous broadcast knob to realize playing continuously fast; Can utilize again single needle to play knob and realize the single frames broadcast, check the frame details, improve user's Experience Degree.
As an example, originally illustrate described single frames broadcast knob and increase progressively stepping message for produce one when turning clockwise a stepping scale; Described playing control unit is used for according to the described stepping message that increases progressively, and the frame number of current broadcast frame is increased progressively one, and obtains the corresponding frame of frame number after increasing progressively and record waveform and play.
As an example, originally illustrate described single frames and play knob for produce the stepping message of successively decreasing when being rotated counterclockwise a stepping scale; Described playing control unit is used for according to the described stepping message of successively decreasing, and the frame number of current broadcast frame is successively decreased one, and obtains the corresponding frame of frame number after successively decreasing and record waveform and play.
As an example, originally illustrate described continuous broadcast knob and described single frames and play the shared same public knob of knob.
Description of drawings
Fig. 1 is the principle schematic of a kind of waveform recording playback of prior art;
Fig. 2 is a kind of structural representation with oscillograph embodiment of waveform recording playback function of the present invention;
Fig. 3 is the rotary manipulation schematic diagram of a kind of continuous broadcast knob of the present invention;
Fig. 4 is that playing control unit of the present invention receives performed flow chart of steps after angle message;
Fig. 5 is a kind of illustrational structural representation of oscillograph embodiment of the present invention;
Fig. 6 is that playing control unit of the present invention receives performed flow chart of steps after stepping message;
Fig. 7 is a kind of structural representation that the present invention plays knob and single frames broadcast knob continuously.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
With reference to Fig. 2, show a kind of structural representation with oscillograph embodiment of waveform recording playback function of the present invention, the oscillograph 200 that the present embodiment proposes comprises:
Waveform recording unit 201, its stored waveform data obtain multiframe and record waveform a;
Play continuously knob 203, according to angle message b corresponding to anglec of rotation generation of himself;
Described playing control unit 202 is also obtained corresponding interframe reproduction time interval and playing sequence according to angle message b; And according to current interframe reproduction time interval and the playing sequence that obtains, play described multiframe and record waveform a.
Waveform recording unit 201 can be the storer of oscillograph 200 inside, records waveform and realizes the waveform recording process by storing successively each frame.Oscillograph 200 enters play mode after starting the recording and playback function, for example, can enter play mode by triggering a certain function button.Play continuously knob 203 and have a plurality of anglecs of rotation, under play mode, after the user revises its anglec of rotation, play continuously knob 203 and can export a certain amount of pulse, this pulse is in the different anglecs of rotation and produces corresponding angle message b.Playing control unit 202 is recorded waveform according to the multiframe that angle message b plays storage in waveform recording unit 201, and is general, reads described multiframe and records the continuous several frames in waveform a and play.
By the embodiment of the present invention, can when the frame number of recording waveform be more, record in waveform in multiframe rapidly and play continuously; And, can pass through adjusting knob Angulation changes interframe reproduction time interval and playing sequence, thus dynamic adjustments broadcasting speed and playing sequence flexibly.By fast browsing, the user can roughly understand the information such as variation tendency of waveform, can reduce in interested place the broadcasting speed of recording waveform, thereby carry out minute observation; Can improve the broadcasting speed of waveform in non-interested place, save the browsing time of recording waveform.
Illustrate as one, in the present embodiment, playing control unit 202 can be according to angle message b, obtains the interframe reproduction time interval with the big or small inversely proportional relation of the anglec of rotation.That is to say, when the anglec of rotation of continuous broadcast knob 203 was larger, interframe reproduction time interval was shorter, and the broadcasting speed of recording accordingly waveform is faster; When the anglec of rotation of continuous broadcast knob 203 more hour, interframe reproduction time interval is longer, the broadcasting speed of recording accordingly waveform is slower.Illustrate as another, in the present embodiment, playing control unit 202 can also be according to angle message b, obtains the interframe reproduction time interval with the big or small relation in direct ratio of the anglec of rotation.
Illustrate as one, in the present embodiment, playing control unit 202 is obtained described interframe reproduction time interval and playing sequence according to angle message b from one group of initialize data corresponding with playing sequence and interframe reproduction time interval.Concrete, playing control unit 202 can record one group of initialize data, and described initialize data comprises: the key assignments and the corresponding reproduction time interval thereof that characterize playing sequence; At first playing control unit 202 according to number of pulses or the width of angle message b, converts thereof into corresponding key assignments; Afterwards, the more described key assignments of foundation, corresponding reproduction time interval and playing sequence obtained from described initialize data; At last, more current reproduction time interval and the playing sequence that obtains of foundation, read described multiframe and record the continuous several frames in waveform and play.As shown in table 1 below, provided the example that one group of initialize data records content.
Table 1
| Key assignments | Interframe reproduction time interval | Key assignments | Interframe reproduction time interval |
| Key assignments A1 | 1s | Key assignments A2 | 1s |
| Key assignments B1 | 0.5s | Key assignments B2 | 0.5s |
| Key assignments C1 | 0.25s | Key assignments C2 | 0.25s |
| Key assignments D1 | 0.1s | Key assignments D2 | 0.1s |
| Key assignments E1 | 0.01s | Key assignments E2 | 0.01s |
| Key assignments F1 | 0.001s | Key assignments F2 | 0.001s |
| Key assignments G1 | 0.00001s | Key assignments G2 | 0.00001s |
According to the initialize data shown in table 1, when the key assignments that is converted to was a kind of in A1～G1, it characterized the forward play order that frame number increases progressively; When the key assignments that is converted to was a kind of in A2～G2, it characterized the reverse-play order that frame number successively decreases.For example, the key assignments that is converted to according to angle message b is C1, according to the interframe reproduction time interval of 0.25s, the broadcast of recording waveform with the forward play order.And for example, the key assignments that is converted to according to angle message b is A2, according to the interframe reproduction time interval of 1s, the broadcast of recording waveform with the reverse-play order.
Common, play the interval between the largest frames in initialize data when recording waveform and play continuously according to multiframe, human eye can be told the time scale that two continuous frames changes and determine.Between largest frames, the reproduction time interval can not be less than this time scale.Between minimum frame, the reproduction time interval is determined according to the data processing speed of oscillograph inside.In this example, as shown in table 1, between largest frames, reproduction time is spaced apart 1s, and between minimum frame, reproduction time is spaced apart 0.00001s.Because key assignments is to be obtained by angle message b corresponding to the anglec of rotation, therefore, key assignments and interframe are play the mapping relations at interval, have represented the mapping relations at the anglec of rotation and interframe broadcast interval.Determined between largest frames between reproduction time interval and minimum frame behind the reproduction time interval, the quantity of the anglec of rotation of supporting according to knob again, determine the corresponding interframe reproduction time of each anglec of rotation interval, be recorded in initialize data, make the broadcasting speed of each anglec of rotation that obvious difference be arranged, the anglec of rotation and interframe reproduction time interval can be the corresponding relation of linear decrease; Also can be the corresponding relation of exponential taper, namely the anglec of rotation is larger, and the difference at interframe reproduction time interval (broadcasting speed) is larger.
Illustrate as one, in the present embodiment, playing control unit 202 can also default start frame and the abort frame of User, the described abort frame of initial play record waveform, that is, and under the waveform recording playback function, when beginning most, at first show the record waveform corresponding with abort frame; Then, more current interframe reproduction time interval and the playing sequence that obtains of foundation, the waveform of recording in start frame and abort frame scope play.Under default situations, the waveform frame of recording and playback can be storage in waveform recording unit 201 all frames record waveform.Accordingly, usually less than the frame number of abort frame, start frame is the waveform of recording of frame number 0 due to the frame number of start frame, is also the first frame waveform that waveform recording unit 201 begins to record; Abort frame is the waveform of recording of the maximum frame number recorded, is also the last frame waveform that recording elements 201 is recorded.For example, recorded in recording elements 201 frame number from 0 to 1000 totally 1001 frames record waveform, under the waveform recording playback function, the initial play frame number is 1000 the waveform of recording, the frame number of recording waveform of playing afterwards is in 0～1000 this scope.In addition, the waveform frame of recording and playback can also User setting in advance, from the intercepting part wherein waveform of recording of all frames of waveform recording unit 201 storages, only plays for this part.In such cases, the user can be with start frame and the self-defined waveform of recording that is set to specify frame number of abort frame, and is concrete, by realizing the frame number of revising start frame or abort frame on the interface is being set.For example, the user can start frame frame number be set to 300, the frame number of abort frame is set to 900, under the waveform recording playback function, the initial play frame number is 900 the waveform of recording, and the frame number of recording waveform of playing afterwards can only be in 300～900 these scopes.Illustrate as another, in the present embodiment, default start frame and the abort frame of all right User of playing control unit 202, the described start frame of initial play record waveform, that is, and under the waveform recording playback function, when beginning most, at first show the record waveform corresponding with start frame; Then, more current interframe reproduction time interval and the playing sequence that obtains of foundation, the waveform of recording in start frame and abort frame scope play.This illustrate with upper one illustrate for example similar, just initial play record the waveform difference, but cross-references repeats no more herein.
Illustrate as another, in the present embodiment, the last frame that playing control unit 202 shows before can also initial play recording and playback function record waveform, that is, keeps the last frame of non-play mode sub-screen demonstration to record waveform constant; Then, more default start frame and abort frame and current interframe reproduction time interval and the playing sequence that obtains of User, the waveform of recording in start frame and abort frame scope play.For example, oscillograph 200 enters the recording and playback function, plays the 500th frame under play mode; Afterwards, switch and play mode, at lower the 600th frame of playing of non-play mode (for example, the wave form analysis pattern), this moment screen display the 600th frame; Afterwards, again enter the recording and playback function, switching playbacks mode playback, and initial play is still the 600th frame at this moment.
Illustrate as one, in the present embodiment, play continuously knob 203 and produce corresponding forward play message in the first rotation angle range, produce corresponding reverse-play message in the second rotation angle range; Described playing control unit 202 is used for according to described forward play message, obtains the forward play order that frame number increases progressively; According to described reverse-play message, obtain the reverse-play order that frame number successively decreases.
As an example, in originally illustrating, play continuously knob 203 and also have elasticity reset device, when the user rotates continuous broadcast knob 203, play continuously the rotary manipulation that knob 203 can User and produce the described anglec of rotation; When the user discharges continuous broadcast knob 203, when not applying rotary manipulation, plays continuously knob 203 and can spring back to automatically its initial position under the effect of described elasticity reset device, that is, automatically restore to the zero anglec of rotation under original state.As shown in Figure 3, be a kind of rotary manipulation schematic diagram of continuous broadcast knob, Fig. 3 mid point M indicated position is the zero anglec of rotation under original state.No matter the user will play knob 203 continuously turns to for which anglec of rotation, in case the user unclamps this knob, when discharging rotary manipulation, play continuously knob 203 will automatic rotating zero anglec of rotation point M place under the original state.
As another example, in originally illustrating, as shown in Figure 3, play continuously the rotary manipulation of knob 203 Users, turn clockwise when spending less than 180 from zero anglec of rotation, produce the anglec of rotation that is in the first rotation angle range, and produce corresponding forward play message according to this anglec of rotation, playing control unit 202 is obtained the forward play order according to described forward play message, carries out the wave shape playback that frame number increases progressively.Play continuously the rotary manipulation of knob 203 Users, be rotated counterclockwise when spending less than 180 from described zero anglec of rotation, generation is in the anglec of rotation in the second rotation angle range, and produce corresponding reverse-play message according to this anglec of rotation, playing control unit 202 is according to described reverse-play message, obtain the reverse-play order, carry out the wave shape playback that frame number increases progressively.Also namely, the first rotation angle range is: from zero scope to the dextrorotation turnback; The second rotation angle range is: from zero to the scope that is rotated counterclockwise 180 degree.As another example, in originally illustrating, the first rotation angle range also can less than or greater than the second rotation angle range, for example, the first rotation angle range is the scopes from zero to 270 degree that turn clockwise, and the second rotation angle range is from zero to the scope that is rotated counterclockwise 90 degree.The present invention is not construed as limiting at this.
As another example, in originally illustrating, play continuously knob 203 and produce a zero degree message b in zero anglec of rotation
0 Playing control unit 202 can also be according to zero degree message b
0Stop playing multiframe and record waveform a.When playing control unit 202 receives zero degree message b
0The time, the expression user has discharged continuous broadcast knob 203, if be in playing process this moment, needs to stop to play.When if playing control unit 202 receives other non-zero angle message, the expression user has revised the anglec of rotation of continuous broadcast knob 203, but still be in the waveform recording playback state, need to again obtain interframe reproduction time interval and/or playing sequence, according to current interframe reproduction time interval and the playing sequence that obtains, play described multiframe and record waveform.
As another example, in originally illustrating, described playing control unit 202 is first suspended and is play described multiframe and record waveform at the current playing sequence that obtains and the front playing sequence that once obtains not simultaneously, and display interface stops to be recorded on waveform when former frame; Afterwards, more current interframe reproduction time interval and the playing sequence that obtains of foundation, continue to play described multiframe and record waveform.Need explanation be when continuing to play, to be that a shown frame is recorded waveform and begun to play when suspending.
According to above-mentioned example, provide and originally illustrate, playing control unit 202 receives the steps flow chart of carrying out after angle message b, as shown in Figure 4:
Step S1, receiving angle message b, and determine whether zero degree message: if, execution in step S2; If not, execution in step S3;
Step S2 stops playing;
Step S3 obtains corresponding interframe reproduction time interval and playing sequence according to angle message b, and judges whether to be in the broadcast state of recording waveform; If so, execution in step S5; If not, execution in step S4;
Step S4 arranges and plays interframe reproduction time interval and the playing sequence of recording waveform, and starts broadcast; Afterwards, return to step S1; Wherein, broadcast interframe reproduction time interval and the playing sequence of recording waveform is set to interframe reproduction time interval and the playing sequence that step S3 obtains;
Step S5 judges whether playing sequence changes; If so, execution in step S6; If not, execution in step S7;
Step S6 suspends and plays; Afterwards, execution in step S8;
Step S7 resets and plays the interframe reproduction time interval of recording waveform, and continues to play; Afterwards, return to step S1; Wherein, the interframe reproduction time of broadcast being recorded waveform is set to the interframe reproduction time interval that step S3 obtains, and because playing sequence is constant, therefore, need not to reset playing sequence;
Step S8 reconfigures interframe reproduction time interval and playing sequence, and starts broadcast; Afterwards, return to step S1; Wherein, broadcast interframe reproduction time interval and the playing sequence of recording waveform is set to interframe reproduction time interval and the playing sequence that step S3 obtains.
As an example, in originally illustrating, the abort frame of the current broadcast user preset of playing control unit 202 record waveform the time, according to described forward play order, stop playing described multiframe and record waveform.That is to say, if current broadcast is the waveform of recording of abort frame, user's angle in the first rotation angle range time of rotating knob, user's rotary manipulation is inoperative, playing control unit 202 stops playing described multiframe and records waveform, the waveform of recording that remains abort frame of interface display.
As another example, in originally illustrating, the start frame of the current broadcast user preset of playing control unit 202 record waveform the time, according to described reverse-play order, stop playing described multiframe and record waveform.That is to say, if current broadcast is the waveform of recording of start frame, user's angle in the second rotation angle range time of rotating knob, user's rotary manipulation is inoperative, playing control unit 202 stops playing described multiframe and records waveform, the waveform of recording that remains start frame of interface display.
Illustrate as one, in the present embodiment, described playing control unit 202 can comprise:
The waveform display module is used for recording waveform from described multiframe and reads a frame and record waveform, is sent to the waveform display module as current broadcast frame; And the stand-by period after current broadcast frame is sent to the waveform display module is when reaching described interframe reproduction time interval, obtain a frame adjacent with the frame number of current broadcast frame according to described playing sequence and record waveform, be sent to the waveform display module as new current broadcast frame;
The waveform display module, the current broadcast frame update displayed that is used for receiving is at display screen.
That is to say, the mode of waveform display module to increase progressively or to successively decrease revised frame number successively, reads the waveform of recording of corresponding frame number, and sends to the waveform display module and show.Every current broadcast frame is sent to just needs to wait for a clock after the waveform display module, this clock is the current interframe reproduction time interval that obtains, and the overtime frame number that increases progressively or successively decrease of clock is after being sent to the waveform display module with new current broadcast frame, clock-reset, and restart timing.
As an example, in originally illustrating, described waveform display module increases progressively one according to described forward play order to the frame number of current broadcast frame, and the corresponding frame of frame number that obtains after increasing progressively records waveform, is sent to display module as new current broadcast frame.Described waveform display module successively decreases one according to described reverse-play order to the frame number of current broadcast frame, and the corresponding frame of frame number that obtains after successively decreasing records waveform, is sent to display module as new current broadcast frame.
Illustrate as one, in the present embodiment, as shown in the figure 5, oscillograph 200 can also comprise:
Single frames is play and is revolved 204, produces the stepping message c of when a stepping scale of its rotation; Accordingly, playing control unit 202 can also be according to stepping message c, reads a frame adjacent with current broadcast frame and records waveform and play.
As an example, in originally illustrating, single frames broadcast knob 204 produces one and increases progressively stepping message when turning clockwise a stepping scale; Playing control unit 202 is used for according to the described stepping message that increases progressively, and the frame number of current broadcast frame is increased progressively one, and obtains the corresponding frame of frame number after increasing progressively and record waveform and play.As another example, in originally illustrating, single frames is play knob 204 and produce the stepping message of successively decreasing when being rotated counterclockwise a stepping scale; Playing control unit 202 is used for according to the described stepping message of successively decreasing, and the frame number of current broadcast frame is successively decreased one, and obtains the corresponding frame of frame number after successively decreasing and record waveform and play.
According to above-mentioned example, provide and originally illustrate, playing control unit 202 receives the steps flow chart of carrying out after stepping message c, as shown in Figure 6:
Step T1 receives stepping message c, and the stepping message that determines whether to successively decrease; If so, execution in step T2; If not, execution in step T3;
Step T2 the frame number of current broadcast frame is successively decreased one, and the corresponding frame of frame number that obtains after successively decreasing is recorded waveform; Afterwards, execution in step T4;
Step T3 the frame number of current broadcast frame is increased progressively one, and the corresponding frame of frame number that obtains after successively decreasing is recorded waveform; Afterwards, execution in step T4;
Step T4, that obtains after the frame number of play revising records waveform.
As another example, in originally illustrating, single frames is play knob 204 can also produce the stepping message of successively decreasing when turning clockwise a stepping scale; Produce one and increase progressively stepping message when turning clockwise a stepping scale.
As another example, in originally illustrating, play continuously knob 203 and single frames and play the shared same public knob of knob 204.For example, under the continuous play mode of acquiescence, public knob realizes playing continuously the function of knob 203; When triggering a certain function button, enter the single frames play mode, public knob is realized the function of single frames broadcast knob 204.As another example, in originally illustrating, play continuously knob 203 and single frames broadcast knob 204 and be two separate knobs, can be arranged on the diverse location place of guidance panel; In addition, inside and outside two knobs can also be set at the same position place, as shown in Figure 7, wherein, inner button is that single frames is play knob 204, and outer knob is to play continuously knob 203.
Different from continuous broadcast knob 203 is that stepping scale of the single frames broadcast every rotation of knob 204 could be play an adjacent frame and record waveform; And when playing continuously knob 203 and often turning to an anglec of rotation, with fixing interframe reproduction time interval and playing sequence, play continuously.In this example, both can play knob by the rotation single frames, and as shown in Fig. 7 (a), make broadcast state be in the single frames play mode, play frame by frame according to stepping message; Also can play continuously knob by rotation, as shown in Fig. 7 (b), make broadcast state be in continuous play mode, play continuously according to angle message.Be understandable that, under continuous play mode, if the user rotates inner button (single frames broadcast knob), represent that the user interrupted the process of quick playback, attempt to finely tune the details of checking every frame, at this moment need to stop recording the continuous broadcast of waveform, play mode is switched to the single frames play mode.
Originally illustrate and both can utilize continuous broadcast knob to realize playing continuously fast; Can utilize again single needle to play knob and realize the single frames broadcast, check the frame details, improve user's Experience Degree.
Above to a kind of oscillograph with waveform recording playback function provided by the present invention, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (17)
1. oscillograph with waveform recording playback function comprises:
The waveform recording unit is used for the stored waveform data, obtains multiframe and records waveform;
Playing control unit is used for playing described multiframe and records waveform;
It is characterized in that, also comprise:
Play continuously knob, be used for producing corresponding angle message according to its anglec of rotation;
Described playing control unit is used for obtaining corresponding interframe reproduction time interval and playing sequence according to described angle message; And according to current interframe reproduction time interval and the playing sequence that obtains, play described multiframe and record waveform.
2. oscillograph as claimed in claim 1, is characterized in that,
Described playing control unit is used for according to described angle message, obtains the interframe reproduction time interval with the big or small inversely proportional relation of the described anglec of rotation.
3. oscillograph as claimed in claim 1, is characterized in that,
Described playing control unit is used for obtaining described interframe reproduction time interval and playing sequence according to described angle message from one group of initialize data corresponding with playing sequence and interframe reproduction time interval.
4. oscillograph as claimed in claim 1, is characterized in that,
Described playing control unit also is used for User default start frame and abort frame, the last frame that shows before the described start frame of initial play, abort frame or recording and playback function record waveform; Then, more current interframe reproduction time interval and the playing sequence that obtains of foundation, the waveform of recording in start frame and abort frame scope play.
5. oscillograph as claimed in claim 1, is characterized in that,
Described continuous broadcast knob is used for producing corresponding forward play message in the first rotation angle range, produces corresponding reverse-play message in the second rotation angle range;
Described playing control unit is used for according to described forward play message, obtains the forward play order that frame number increases progressively; According to described reverse-play message, obtain the reverse-play order that frame number successively decreases.
6. oscillograph as claimed in claim 5, is characterized in that,
The rotary manipulation that described continuous broadcast knob is used for User produces the described anglec of rotation; And when the user discharges described rotary manipulation, automatically restore to the zero anglec of rotation under original state.
7. oscillograph as claimed in claim 6, is characterized in that,
The rotary manipulation of described continuous broadcast knob User turns clockwise when spending less than 180 from described zero anglec of rotation, produces the anglec of rotation that is in the first rotation angle range; Be rotated counterclockwise when spending less than 180 from described zero anglec of rotation, produce the anglec of rotation that is in the second rotation angle range.
8. oscillograph as claimed in claim 6, is characterized in that,
Described continuous broadcast knob is used for producing a zero degree message in described zero anglec of rotation;
Described playing control unit also is used for stopping playing described multiframe according to described zero degree message and records waveform.
9. oscillograph as claimed in claim 5, is characterized in that,
Described playing control unit is not at the current playing sequence that obtains and the front playing sequence that once obtains simultaneously, first suspend the described multiframe of broadcast and record waveform, afterwards, more current interframe reproduction time interval and the playing sequence that obtains of foundation, continue to play described multiframe and record waveform.
10. oscillograph as claimed in claim 5, is characterized in that,
The abort frame of the current broadcast user preset of described playing control unit record waveform the time, according to described forward play order, stop playing described multiframe and record waveform.
11. oscillograph as claimed in claim 5 is characterized in that,
The start frame of the current broadcast user preset of described playing control unit record waveform the time, according to described reverse-play order, stop playing described multiframe and record waveform.
12. oscillograph as described in claim 5 to 11 any one is characterized in that,
Described playing control unit comprises:
The waveform display module is used for recording waveform from described multiframe and reads a frame and record waveform, is sent to the waveform display module as current broadcast frame; And the stand-by period after current broadcast frame is sent to the waveform display module is when reaching described interframe reproduction time interval, obtain a frame adjacent with the frame number of current broadcast frame according to described playing sequence and record waveform, be sent to the waveform display module as new current broadcast frame;
The waveform display module, the current broadcast frame update displayed that is used for receiving is at display screen.
13. oscillograph as claimed in claim 12 is characterized in that,
Described waveform display module increases progressively one according to described forward play order to the frame number of current broadcast frame, and the corresponding frame of frame number that obtains after increasing progressively records waveform, is sent to display module as new current broadcast frame;
Described waveform display module successively decreases one according to described reverse-play order to the frame number of current broadcast frame, and the corresponding frame of frame number that obtains after successively decreasing records waveform, is sent to display module as new current broadcast frame.
14. oscillograph as described in claim 1 to 11 any one is characterized in that, also comprises:
Single frames is play knob, is used for producing the stepping message of one when a stepping scale of its rotation;
Described playing control unit also is used for according to described stepping message, reads a frame adjacent with current broadcast frame and records waveform and play.
15. oscillograph as claimed in claim 14 is characterized in that,
Described single frames is play knob and is increased progressively stepping message for produce one when turning clockwise a stepping scale;
Described playing control unit is used for according to the described stepping message that increases progressively, and the frame number of current broadcast frame is increased progressively one, and obtains the corresponding frame of frame number after increasing progressively and record waveform and play.
16. oscillograph as claimed in claim 14 is characterized in that,
Described single frames is play knob and be used for producing the stepping message of successively decreasing when being rotated counterclockwise a stepping scale;
Described playing control unit is used for according to the described stepping message of successively decreasing, and the frame number of current broadcast frame is successively decreased one, and obtains the corresponding frame of frame number after successively decreasing and record waveform and play.
17. oscillograph as claimed in claim 14 is characterized in that,
Described continuous broadcast knob and described single frames are play knob and are shared same public knob.
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