CN111948433A - Waveform display method and device based on digital oscilloscope - Google Patents
Waveform display method and device based on digital oscilloscope Download PDFInfo
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Abstract
The invention provides a waveform display method and a device based on a digital oscilloscope, wherein the method comprises the following steps: acquiring and storing operation instruction information, wherein the operation instruction information comprises an operation instruction and a first time identifier; acquiring and storing first data group information based on the stored operation instruction information, wherein the first data group information comprises a first data group and a second time identifier; and acquiring a read-back instruction, and sequentially sending the operation instruction information and the first data group information to the display component according to the read-back instruction so that the display component sequentially displays the operation instruction and the first data group based on the first time identifier and the second time identifier respectively. Based on the waveform display method, the operation instruction and the waveform can be directly and alternately displayed on the display component of the conventional oscilloscope, so that the operation process can be corresponded to the change of the waveform and the measurement result when a user reads back the waveform conveniently.
Description
Technical Field
The invention relates to the field of oscilloscopes, in particular to a waveform display method and device based on a digital oscilloscope.
Background
Signals in nature are transient signals which are changed instantly mostly, signals which meet triggering conditions can be captured by adopting the triggering function of the oscilloscope, and some important signals also need to be stored and further observed and analyzed. Therefore, waveform storage, recording and readback are important functions of the digital oscilloscope.
In a conventional oscilloscope, an acquired waveform is usually stored in a certain format, and when needing to be read back, the stored waveform is read back, that is, the stored waveform is seen in an interface of the oscilloscope. However, when the above scheme is adopted, only the waveform can be recorded independently, and how the waveform changes operate cannot be known. At present, only equipment with a video recording function, such as a video camera or a mobile phone, can be used for recording the whole operation process and the display result from the perspective of a third party so as to form a video file.
However, the above method is complicated to operate, and the shooting can be realized only by using external equipment with a camera shooting function, and a shooting scene needs to be built, so that inconvenience is undoubtedly brought to users.
Disclosure of Invention
In view of the above problem that the recording operation process is complicated by using an oscilloscope with a video recording function, the present invention is proposed to provide a waveform display method and apparatus based on a digital oscilloscope, which overcome the above problem or at least partially solve the above problem.
According to an aspect of the present invention, there is provided a waveform display method based on a digital oscilloscope, applied to an oscilloscope, the oscilloscope having an operation component and a display component, the method comprising:
acquiring and storing operation instruction information, wherein the operation instruction information comprises an operation instruction and a first time identifier, the operation instruction is an instruction input into the oscilloscope by a first user through the operation component, and the first time identifier is a relative moment when the operation instruction is generated;
acquiring and storing first data group information based on the stored operation instruction information, wherein the first data group information comprises a first data group and a second time identifier, the first data group is a channel signal acquired according to an acquisition parameter and the operation instruction, and the second time identifier is a relative moment when the first data group is generated;
and acquiring a read-back instruction, and sequentially sending the operation instruction information and the first data group information to the display component according to the read-back instruction so that the display component sequentially displays the operation instruction and the first data group based on the first time identifier and the second time identifier respectively.
Preferably, the acquiring and storing the first data group information specifically includes:
acquiring the acquisition parameters and acquiring the channel signals according to the acquisition parameters to acquire acquisition data;
acquiring the operation instruction, and processing the acquired data according to the operation instruction to obtain and store a first data group and a second time identifier;
wherein the acquisition parameters include at least one of: time base, vertical gear and trigger conditions.
Preferably, the method further comprises:
and displaying the operation instruction in a text or image form.
Preferably, after the first data group information is acquired, the method further includes:
acquiring and storing a second data group after image processing is carried out on the data in the first data group, and establishing a corresponding relation between the second data group and the second time identifier;
and storing the second data group information, wherein the second data group information comprises a second data group and a second time identifier.
Preferably, after the operation instruction information is sent according to the read-back instruction, the method further includes:
judging whether the time for sending the operation instruction information from the current time passes a first preset time or not;
and if so, sending the second data group information.
According to another aspect of the present invention, a waveform exhibiting apparatus based on a digital oscilloscope includes:
the first acquisition unit is used for acquiring and storing operation instruction information, wherein the operation instruction information comprises an operation instruction and a first time identifier, the operation instruction is an instruction input into the oscilloscope by a first user through the operation component, and the first time identifier is a relative moment when the operation instruction is generated;
the second acquisition unit is used for acquiring and storing first data group information based on the stored operation instruction information, wherein the first data group information comprises a first data group and a second time identifier, the first data group is a channel signal acquired according to an acquisition parameter and the operation instruction, and the second time identifier is a relative moment when the first data group is generated;
and the third acquisition unit is used for acquiring a read-back instruction and sequentially sending the operation instruction information and the first data group information to the display assembly according to the read-back instruction so that the display assembly sequentially displays the operation instruction and the first data group based on the first time identifier and the second time identifier respectively.
Preferably, the method further comprises the following steps:
the fourth acquisition unit is used for acquiring the acquisition parameters and acquiring the channel signals according to the acquisition parameters to acquire acquisition data;
the fifth obtaining unit is used for obtaining the operation instruction, processing the collected data according to the operation instruction, and then obtaining and storing a first data group and a second time identifier;
wherein the acquisition parameters include at least one of: time base, vertical gear and trigger conditions.
Preferably, the display component displays the operation instruction in a form of characters or images.
Preferably, the apparatus further comprises:
the image processing unit is used for carrying out image processing on the data in the first data group, then acquiring and storing a second data group, and establishing a corresponding relation between the second data group and the second time identifier;
and the storage unit is used for storing the second data group information, and the second data group information comprises a second data group and a second time identifier.
Preferably, after the operation instruction information is sent according to the read-back instruction, the method further includes:
the judging unit is used for judging whether a first preset time is passed by the current time from the time of sending the operation instruction information;
and the sending unit is used for sending the second data group information if the second data group information is received.
Based on the waveform display method and the waveform display device in the scheme of the invention, the waveform display and operation method of the oscilloscope are not required to be recorded by a third-party device, the operation instruction and the waveform change can be respectively and alternately displayed by a display component of the existing oscilloscope, so that a user can conveniently correspond the operation process with the waveform and the change of the measurement result during reading back, and the operation process of the oscilloscope can be more clearly reflected during demonstration.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings may be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an oscilloscope according to an embodiment of the present invention;
FIG. 2 is a flow chart of a waveform display method based on a digital oscilloscope according to an embodiment of the present invention;
FIG. 3 is a flow chart of a read-back method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a waveform display apparatus based on a digital oscilloscope in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a waveform display method based on a digital oscilloscope, which is applied to an oscilloscope, and as shown in figure 1, the oscilloscope is provided with an operation component 50 and a display component 60. Specifically, the operation component 50 of the oscilloscope may be in the form of a key component, a touch component, a knob component, or the like. The display component 60 is a display screen of the oscilloscope, and the display screen has a display interface, and can display a menu, background colors of a waveform area, grids and the like besides displaying waveforms, so that the display interface is not only influenced by waveform transformation, but also influenced by menu states, menu background color settings, grid settings and the like. The oscilloscope comprises an ADC 10 for acquiring channel signals and an FPGA 20 for adjusting the sampling rate of the ADC 10 and driving the ADC 10 to sample, wherein the FPGA 20 stores sampling data at a certain depth according to the setting of the oscilloscope after receiving the sampling data and contains all the sampling data at a specific sampling rate within a waveform time, and the specific structure of the oscilloscope is shown in figure 1. The FPGA 20 then passes the stored sample data to the DSP 30 on a frame-by-frame basis. After the DSP 30 finishes measuring the sampling data, the measurement data is transmitted to the FPGA 20, then the FPGA 20 directly stores the measurement data into the SDRAM 40, and then the FPGA 20 reads the stored measurement data according to the specification of the display module 60 and transmits the measurement data to the display module 60.
In an embodiment of the present invention, a waveform display method based on a digital oscilloscope is applied to an oscilloscope, the oscilloscope has an operation component and a display component, and as shown in fig. 2, the method includes:
Based on the waveform display method of the embodiment of the invention, the waveform display and operation method of the oscilloscope do not need to be recorded by a third-party device, and the recorded operation instructions can be directly combined with the recorded waveform data to be respectively displayed by the existing oscilloscope. The display component displays the change of the waveform and the operation instruction, firstly displays the operation instruction, then displays the waveform after the operation instruction is executed, and then displays the next operation instruction, and so on, namely displays the waveform corresponding to the first operation instruction during recording in the time between two times of displaying the operation instructions. The operation process can be corresponded to the change of the waveform and the measuring result when the user reads back conveniently, and the operation process of the oscilloscope can be reflected more clearly when the demonstration is carried out.
Specifically, the various time identifiers described in the embodiments of the present invention are relative, that is, a certain time is used as a timing starting point. For example, in the embodiment of the present invention, the recording start time is used as the timing start point, and the time identifier of the recording start time is marked as 0. The time identification after 1 unit time is 1, the time identification after 1 unit time is 2, and so on, wherein the unit time can be set according to the requirement. Thus, when the relative time at which the first data set is generated is N, meaning that the relative time has elapsed N units of time from the start of the timekeeping, then the second time stamp is N, and the first data set and the relative second time stamp are saved for subsequent readback purposes.
In the embodiment of the invention, in order to clearly display the operation process of the oscilloscope, the method needs to store the operation instruction, so that a user can conveniently compare and know the operation process and the specific form of the waveform by displaying the operation instruction. In a specific scheme, as in step 201, after the specific process of acquiring and storing the operation instruction information by the DSP in the oscilloscope is that an operation instruction is received, the operation instruction information is stored by the DSP, and meanwhile, a first time identifier corresponding to the operation instruction needs to be stored. In this embodiment, the initial value of the recording is used as the starting time of recording the first time identifier.
The first data set represents all waveform data contained in one frame of image on the oscilloscope interface, and therefore is represented in the form of a group of first data sets. In this embodiment, the first data set information is a channel signal obtained based on the operation instruction information and the acquisition parameter. Specifically, when no operation instruction is input, the FPGA receives the sampling data, stores the sampling data at a certain depth according to the setting of the oscilloscope, and then transmits the stored sampling data to the DSP frame by frame. After the DSP finishes measuring the sampling data, the finished measuring data is transmitted to the FPGA; however, when an operation instruction related to the output processed by the FPGA is input, the DSP configures the FPGA according to the input of the operation instruction, and the FPGA processes the channel signal obtained according to the acquisition parameter according to the operation instruction, so that the first data group is the channel signal obtained according to the acquisition parameter and the operation instruction in step 202 of the embodiment of the present invention, that is, in the present invention, the final first data group is obtained according to the adjustment of the acquisition parameter and the operation instruction, and the second time identifier corresponding to the first data group is obtained at the same time.
When the waveform and operation need to be read back, as shown in step 203, a read-back instruction needs to be obtained first, and the corresponding read-back data is obtained according to the read-back instruction and then displayed. Specifically, in the embodiment of the present invention, the readback data includes operation instruction information and first data group information, where the operation instruction information and the first data group information are sequentially sent to the display component, the operation instruction information is sent first, when the operation instruction is displayed on the display component, the first data group information related to the operation instruction is sent again, and is used to display a waveform corresponding to the first data group generated according to the operation instruction after the operation instruction is displayed, and the above reading and displaying processes are performed in a loop. The operation process can be corresponded to the change of the waveform and the measurement result when the user reads back conveniently.
In a preferred embodiment, the read-back instruction is acquired and the read-back time is acquired at the same time, so that the display is performed according to the read-back time during the display. Specifically, the read-back time is different from the time identifier during recording. The read-back time is 0, the read-back time is increased by 1 every 1 unit time, and when the read-back time is equal to the maximum recorded time, the read-back time is reset to 0. Wherein, 1 unit time during the read-back process can be the same as or different from 1 unit time in the recording process. For example, if the read-back speed is 2 times of the recording speed, 1 unit time of the read-back link is set to be equal to 1/2 of 1 unit of the recording link, so the read-back speed can be adjusted according to the read-back time without being limited by the recording time length. For example, when the waveform changes faster, the time duration of the read-back link per unit time can be increased in order to clearly see the waveform changes and the operation instructions.
In the waveform display method based on the digital oscilloscope according to the embodiment of the present invention, preferably, the acquiring and storing the first data set information specifically includes:
acquiring the acquisition parameters and acquiring the channel signals according to the acquisition parameters to acquire acquisition data; wherein the acquisition parameters include at least one of: time base, vertical gear and trigger conditions.
Acquiring the operation instruction, and processing the acquired data according to the operation instruction to obtain and store a first data group and a second time identifier; and the FPGA acquires the channel signals according to the previous acquisition parameters and the acquisition parameters to obtain acquisition data, processes the acquisition data according to the operation instruction obtained from the DSP and the content of the operation instruction to finally obtain and store a first data group and a second time identifier. The trigger conditions may specifically include: the trigger type, the trigger mode, the trigger level, the trigger channel, the open channel, etc. are not limited to the embodiments of the present invention.
In the embodiment of the present invention, a waveform display method based on a digital oscilloscope is preferred, and the method further includes:
the operation instruction is displayed in a text or image form, for example, a key interface of the whole oscilloscope can be displayed, and a key for operation is highlighted at the same time, or only the key can be displayed, and a background which is contrasted with the key is adopted.
In the waveform display method based on the digital oscilloscope according to the embodiment of the present invention, preferably, after the first data set information is acquired, the method further includes:
acquiring and storing a second data group after image processing is carried out on the data in the first data group, and establishing a corresponding relation between the second data group and the second time identifier; specifically, the image processing includes interpolation processing or compression processing, and different processing modes are different according to different pixels in the horizontal direction of the screen. For example, when the screen is 700 pixels in the horizontal direction, if the number of waveform data of one frame transmitted by the FPGA is less than 700, image processing for interpolation is required; if more than 700 waveform data are transmitted in one frame, compressed image processing is required. The data set obtained after the processing is finished is even a second data set which can be fully reflected on the screen. The data set is stored by the DSP, and a corresponding second time stamp is also stored.
And during read-back, the operation instruction is read first and then the second data group related to the operation instruction is read so as to alternately display the operation instruction and the second data group. The process of reading back the second data set after image processing is basically the same as the process of reading back the first data set, so that the process of reading back the first data set can be referred to.
In a preferred embodiment, after the readback data is acquired, the mth operation instruction for display at the current moment is respectively determined, then an overall interface is formed by combining the settings of the oscilloscope and is transmitted to the FPGA, the nth group of the first data group/the nth group of the second data group is determined, the operation instruction and the data group are respectively read by the FPGA according to the display specification of the display component and then displayed, and the operation instruction and the data group are continuously cycled. The oscilloscope settings may include, for example: menu ground color setting, grid setting, and the like.
In the waveform display method based on the digital oscilloscope according to the embodiment of the present invention, preferably, after the operation instruction information is sent according to the read-back instruction, the method specifically includes:
judging whether the time for sending the operation instruction information from the current time passes a first preset time or not; specifically, the time for displaying the operation instruction needs to be kept for a certain duration, namely, a first preset time; and the display component keeps displaying the interface of the operation instruction within the first preset time, does not read the information of the second data group within the first preset time, and can read and display the corresponding second data group when the display time of the interface for displaying the operation instruction reaches a preset time. In a specific embodiment, the DSP performs the above determination, and when the current time is not a first preset time from the time of sending the operation instruction information, the DSP does not send the second data group information to the FPGA, but waits for the first preset time to pass and then sends the first data group information, and so on, the DSP alternately sends and displays the operation instruction and the second data group.
In another specific embodiment of the present invention, a waveform display method is described by taking read-back operation instruction information as an example, and a process of reading back first data group information or second data group information is similar, where an operation instruction may be replaced by a first data group, and a first time identifier may be replaced by a second time identifier. Referring to fig. 3, in the read-back process, the method further includes:
When the step 303 determines that the current read-back time is smaller than the first time identifier corresponding to the operation instruction, step 305 is performed.
And 305, confirming that the required operation instruction is empty, and simultaneously keeping the position of the operation instruction read this time at the position read back next time. That is, the current read-back time does not need to read the operation command, so that the next read-back time needs to be waited for and judged.
In step 301, when it is determined that no stored operation instruction information is readable back before the read-back, step 306 is performed.
if the read-back time is already reset to 0, step 307 is performed, in which it is determined that the required operation command is empty, and the position of the next read-back is changed to the position corresponding to the first operation command, that is, a new round of reading needs to be started from the beginning without any operation command that can be read back;
if the read-back time has not been reset to 0, step 305 is entered to determine that the required operation command is empty, and the position of the next read-back operation command is kept at the position of the operation command read this time.
The method of the embodiment of the invention provides a new oscilloscope function, namely, the oscilloscope can record the operation steps and the corresponding time points, and the operation process can be in one-to-one correspondence with the changes of the waveform and the measurement result during the read-back, thereby being convenient for users to observe and learn.
An embodiment of the present invention further provides a waveform display apparatus based on a digital oscilloscope, as shown in fig. 4, including:
a first obtaining unit 401, configured to obtain and store operation instruction information, where the operation instruction information includes an operation instruction and a first time identifier, the operation instruction is an instruction that a first user inputs the oscilloscope through the operation component, and the first time identifier is a relative time when the operation instruction is generated;
a second obtaining unit 402, configured to obtain and store first data set information based on the stored operation instruction information, where the first data set information includes a first data set and a second time identifier, the first data set is a channel signal obtained according to an acquisition parameter and the operation instruction, and the second time identifier is a relative time when the first data set is generated;
a third obtaining unit 403, configured to obtain a read-back instruction, and sequentially send the operation instruction information and the first data set information to the display assembly according to the read-back instruction, so that the display assembly sequentially displays the operation instruction and the first data set based on the first time identifier and the second time identifier, respectively.
The waveform display device based on the digital oscilloscope provided by the embodiment of the invention preferably further comprises:
the fourth acquisition unit is used for acquiring the acquisition parameters and acquiring the channel signals according to the acquisition parameters to acquire acquisition data;
the fifth obtaining unit is used for obtaining the operation instruction, processing the collected data according to the operation instruction, and then obtaining and storing a first data group and a second time identifier;
wherein the acquisition parameters include at least one of: time base, vertical gear and trigger conditions.
In the waveform display device based on the digital oscilloscope, preferably, the display component displays the operation instruction in a text or image form.
The waveform display device based on the digital oscilloscope provided by the embodiment of the invention preferably further comprises:
the image processing unit is used for carrying out image processing on the data in the first data group, then acquiring and storing a second data group, and establishing a corresponding relation between the second data group and the second time identifier;
and the storage unit is used for storing the second data group information, and the second data group information comprises a second data group and a second time identifier.
In the waveform display device based on the digital oscilloscope, preferably, after the operation instruction information is sent according to the read-back instruction, the method further includes:
the judging unit is used for judging whether a first preset time is passed by the current time from the time of sending the operation instruction information;
and the sending unit is used for sending the second data group information if the second data group information is received.
In summary, the waveform display method and apparatus based on the digital oscilloscope provided by the embodiment of the present invention have the following technical effects:
firstly, when the functions and the use method of the oscilloscope are required to be demonstrated by recording videos, a camera is not required, and a shooting scene is not required to be built, so that the novel functions provided by the invention can achieve better effects and are more convenient to use.
Second, for the case where a person unfamiliar with the use of the scene only sees the recorded waveform and is likely to not know how to operate the oscilloscope to reproduce the recorded waveform, the problem can be solved if the oscilloscope has the function proposed by the present invention.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should also be understood that, in the embodiment of the present invention, the term "and/or" is only one kind of association relation describing an associated object, and means that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A waveform display method based on a digital oscilloscope is applied to the oscilloscope, the oscilloscope is provided with an operation component and a display component, and the method is characterized by comprising the following steps:
acquiring and storing operation instruction information, wherein the operation instruction information comprises an operation instruction and a first time identifier, the operation instruction is an instruction input into the oscilloscope by a first user through the operation component, and the first time identifier is a relative moment when the operation instruction is generated;
acquiring and storing first data group information based on the stored operation instruction information, wherein the first data group information comprises a first data group and a second time identifier, the first data group is a channel signal acquired according to an acquisition parameter and the operation instruction, and the second time identifier is a relative moment when the first data group is generated;
and acquiring a read-back instruction, and sequentially sending the operation instruction information and the first data group information to the display component according to the read-back instruction so that the display component sequentially displays the operation instruction and the first data group based on the first time identifier and the second time identifier respectively.
2. The waveform display method based on the digital oscilloscope according to claim 1, wherein the acquiring and storing the first data group information specifically comprises:
acquiring the acquisition parameters and acquiring the channel signals according to the acquisition parameters to acquire acquisition data;
acquiring the operation instruction, and processing the acquired data according to the operation instruction to obtain and store a first data group and a second time identifier;
wherein the acquisition parameters include at least one of: time base, vertical gear and trigger conditions.
3. The digital oscilloscope-based waveform presentation method according to claim 1, further comprising:
and displaying the operation instruction in a text or image form.
4. The digital oscilloscope-based waveform display method according to claim 1, wherein after acquiring the first data set information, the method further comprises:
acquiring and storing a second data group after image processing is carried out on the data in the first data group, and establishing a corresponding relation between the second data group and the second time identifier;
and storing the second data group information, wherein the second data group information comprises a second data group and a second time identifier.
5. The digital oscilloscope-based waveform display method according to claim 4, wherein after the operation instruction information is sent according to the read-back instruction, the method further comprises:
judging whether the time for sending the operation instruction information from the current time passes a first preset time or not;
and if so, sending the second data group information.
6. A waveform display device based on a digital oscilloscope is characterized by comprising:
the first acquisition unit is used for acquiring and storing operation instruction information, wherein the operation instruction information comprises an operation instruction and a first time identifier, the operation instruction is an instruction input into the oscilloscope by a first user through the operation component, and the first time identifier is a relative moment when the operation instruction is generated;
the second acquisition unit is used for acquiring and storing first data group information based on the stored operation instruction information, wherein the first data group information comprises a first data group and a second time identifier, the first data group is a channel signal acquired according to an acquisition parameter and the operation instruction, and the second time identifier is a relative moment when the first data group is generated;
and the third acquisition unit is used for acquiring a read-back instruction and sequentially sending the operation instruction information and the first data group information to the display assembly according to the read-back instruction so that the display assembly sequentially displays the operation instruction and the first data group based on the first time identifier and the second time identifier respectively.
7. The digital oscilloscope-based waveform demonstration apparatus according to claim 6 further comprising:
the fourth acquisition unit is used for acquiring the acquisition parameters and acquiring the channel signals according to the acquisition parameters to acquire acquisition data;
the fifth obtaining unit is used for obtaining the operation instruction, processing the collected data according to the operation instruction, and then obtaining and storing a first data group and a second time identifier;
wherein the acquisition parameters include at least one of: time base, vertical gear and trigger conditions.
8. The digital oscilloscope-based waveform display device according to claim 6, wherein the display component displays the operation instructions in a form of characters or images.
9. The digital oscilloscope-based waveform demonstration apparatus according to claim 6 further comprising:
the image processing unit is used for carrying out image processing on the data in the first data group, then acquiring and storing a second data group, and establishing a corresponding relation between the second data group and the second time identifier;
and the storage unit is used for storing the second data group information, and the second data group information comprises a second data group and a second time identifier.
10. The digital oscilloscope-based waveform display apparatus according to claim 9, wherein after sending the operation instruction information according to the read-back instruction, the method further comprises:
the judging unit is used for judging whether a first preset time is passed by the current time from the time of sending the operation instruction information;
and the sending unit is used for sending the second data group information if the second data group information is received.
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