CN117761371A - Display device supporting scroll triggering and data processing method of scroll triggering thereof - Google Patents
Display device supporting scroll triggering and data processing method of scroll triggering thereof Download PDFInfo
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Abstract
The application provides a display device supporting rolling triggering and a data processing method of the rolling triggering. The display device comprises a data acquisition module, a storage module and a data processing module, wherein in a rolling mode, the data processing module responds to an external trigger enabling instruction to detect a trigger event of acquired input data, and when a preset trigger condition is met, the input data of a full frame is acquired as trigger data according to a preset rule; the trigger data at least comprises one trigger point; when the display is needed, the input data and the trigger data are respectively read, so that the input data and the trigger data can be displayed singly or in combination. The application realizes that the trigger data can be displayed and analyzed singly or in combination for the trigger data which satisfies the trigger condition for a plurality of times under the rolling mode.
Description
Technical Field
The application relates to the technical field of test measurement, in particular to a display device supporting rolling trigger and a data processing method of the rolling trigger.
Background
The existing equipment with waveform display function, such as oscilloscope, is a very wide-purpose electronic measuring instrument, which can convert the electric signal invisible to human eyes into waveform image visible to human eyes, so that people can conveniently study the variation process of various electric signals.
Taking an oscilloscope as an example, the acquisition modes of the existing oscilloscope comprise a Y-T mode, a scanning mode and a rolling mode. The Y-T mode is the most common mode of oscilloscope acquisition and display, and the waveform is displayed according to the frame when one frame is acquired. In the scanning mode, waveforms are displayed from left to right, the waveform display update starts to update after the pre-trigger is full and the trigger condition is met or overtime, and the latest waveform is placed on the right side of old waveform data. The rolling mode has the greatest advantage that no dead time is acquired, and the change track of the waveform can be observed in real time by utilizing the acquisition display mode; the waveform is displayed from right to left, with the most recently coming waveform being placed at the right-most end of the display. Because the collection in the rolling mode has no dead time, waveform change can be seen in time and is widely used by users, the system is convenient for the users to continuously record under unmanned condition and stop analysis after the collection after the trigger condition is satisfied.
On existing oscilloscope apparatuses, only a single trigger is supported in the scroll mode. Single-shot refers to: when a user presses a start key, a trigger module of the oscilloscope obtains a trigger enabling signal, whether the received input data meets the trigger condition is compared, a trigger control signal is generated once the trigger condition is met, meanwhile, the trigger enabling signal is invalid, and the oscilloscope stops running after grabbing the current single-frame trigger data and displaying corresponding waveforms according to the trigger control signal. Therefore, in the existing oscilloscope rolling mode, after the operation of the oscilloscope starts to be performed and the triggering data is captured and the corresponding waveform is displayed by the oscilloscope, the operation is stopped immediately, and repeated triggering is avoided, namely in the existing oscilloscope rolling mode, only single triggering can be realized, continuous triggering cannot be realized, and only the current single-frame triggering data can be displayed and analyzed.
Disclosure of Invention
The application provides a display device supporting rolling trigger and a data processing method of the rolling trigger, which can solve the technical problems that the existing device with a waveform display function cannot continuously trigger to acquire multi-frame trigger data and cannot simultaneously display and analyze current frame input data and multi-frame trigger data in a rolling mode.
In a first aspect, an embodiment of the present application provides a display apparatus supporting scroll triggering, including:
The data acquisition module is used for acquiring continuous input data;
A memory module including a plurality of memory regions;
The data processing module comprises a trigger detection unit, a data grabbing unit and a read-write control unit;
In a rolling mode, the trigger detection unit responds to an external trigger enabling instruction to detect a trigger event of the input data, and generates a trigger grabbing signal when a preset trigger condition is met;
The data grabbing unit is used for responding to the trigger grabbing signal and grabbing the input data of the full frame according to a preset rule to serve as trigger data; the trigger data at least comprises one trigger point;
The read-write control unit is used for controlling the input data and the trigger data to be written into the storage areas of the storage module respectively; and when the display is required, the read-write control unit can respectively control and read the input data and the trigger data stored in the storage area so as to realize that the input data and the trigger data can be displayed singly or in combination.
in a second aspect, an embodiment of the present application provides a data processing method for rolling trigger, which is applied to a display device supporting rolling trigger, where the display device supporting rolling trigger includes a data acquisition module, a storage module, and a data processing module; the data processing method comprises the following steps:
Acquiring continuous input data;
In a rolling trigger mode, responding to an external trigger enabling instruction, and detecting a trigger event of the input data;
When the input data meets a preset trigger condition, capturing the input data of a full frame according to a preset rule as trigger data; the trigger data at least comprises one trigger point;
and when the display is needed, respectively reading the input data and the trigger data so as to realize that the input data and the trigger data can be displayed singly or in combination.
In a third aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of a method as described in any of the embodiments herein.
the display device supporting rolling triggering and the data processing method thereof provided by the embodiment of the application comprise a data acquisition module, a storage module and a data processing module, wherein in a rolling mode, the data processing module responds to an external triggering enabling instruction to detect a triggering event of acquired input data, and when a preset triggering condition is met, the data processing module captures the input data of a full frame as triggering data according to a preset rule; the trigger data at least comprises one trigger point; when the display is needed, the input data and the trigger data are read so as to realize that the input data and the trigger data can be displayed singly or in combination.
Compared with the prior art, the application realizes the continuous triggering detection of input data for a plurality of times, grabs the triggering data of a plurality of frames according to the preset storage rule, can read the input data and the triggering data of a plurality of frames when displaying waveforms, and respectively displays the input data of the current frame and the triggering data of at least one frame by displaying a plurality of display windows, so that the triggering data which meet the triggering conditions for a plurality of times can be displayed and analyzed singly or in a combined way, a user can observe and analyze the data concerned more conveniently, and the debugging efficiency of the user is improved.
Drawings
the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
fig. 1 is a schematic structural diagram of a display device supporting scrolling triggering according to a first embodiment of the present application.
Fig. 2 is a schematic structural diagram of a display device supporting scrolling triggering according to a second embodiment of the present application.
Fig. 3 is a schematic structural diagram of a display device supporting scrolling triggering according to a third embodiment of the present application.
Fig. 4 is a schematic structural diagram of a display device supporting scrolling triggering according to a fourth embodiment of the present application.
Fig. 5 is a flowchart of a method for processing rolling trigger data according to an embodiment of the present application.
Fig. 6 is a flowchart of capturing trigger data according to an embodiment of the present application.
fig. 7 is a flowchart of capturing trigger data according to another embodiment of the present application.
Fig. 8 is a schematic diagram of a captured trigger waveform according to an embodiment of the present application.
Fig. 9 is a schematic diagram of a captured trigger waveform according to another embodiment of the present application.
Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.
Detailed Description
The application will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, related operations of the present application have not been shown or described in the specification in order to avoid obscuring the core portions of the present application, and may be unnecessary to persons skilled in the art from a detailed description of the related operations, which may be presented in the description and general knowledge of one skilled in the art.
Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated.
The prior device with waveform display function, such as an oscilloscope, a universal meter, a data acquisition switching device and other test measurement devices, takes the prior oscilloscope as an example, can only display currently input waveform data in a rolling mode, cannot display triggered waveform data, and cannot realize continuous triggering due to the fact that the prior oscilloscope can only realize single triggering, namely, after the triggering condition is met, the oscilloscope immediately enters a stop mode, at the moment, only the triggering data which are fully acquired at present can be displayed and analyzed, for the triggering data which meet the triggering condition for a plurality of times in a continuous long time, the simultaneous display and analysis of multi-frame triggering data cannot be realized, and the storage space of a memory is wasted due to the fact that only one frame of triggering data is reserved.
Therefore, the application aims to provide a display device supporting rolling triggering, which can realize continuous triggering detection in a rolling mode, can separately store triggering data which continuously meets triggering conditions for a plurality of times in a long time, display currently input data and multi-frame triggering data which meets the triggering conditions through a plurality of display windows, realize simultaneous observation and analysis of the currently input data and the multi-frame triggering data, and meet the requirement of a user for monitoring the triggering for a plurality of times for a long time. In addition, in the rolling mode, trigger data triggered by the rolling mode adopt the trigger point as a reference, and single-frame continuous trigger data are grabbed in the front and rear time periods, so that no dead zone is ensured in the stored data of the trigger data, and the user can observe the reasons of the occurrence of the trigger conveniently.
The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display device supporting scrolling triggering according to a first embodiment of the present application. As shown in fig. 1, the display device supporting rolling triggering provided by the embodiment of the application includes a data acquisition module 100, a storage module 200 and a data processing module 300.
in this embodiment, the data acquisition module 100 is configured to acquire continuous input data.
The storage module 200 includes a plurality of storage areas 201, one of which is used for storing input data acquired by the data acquisition module, and the other of which is used for storing trigger data detected by a trigger.
in some embodiments, memory module 200 includes a memory that may be a DDR memory that is divided into a plurality of memory regions, each memory region corresponding to memory region 201 of memory module 200. The memory module 200 may also be a plurality of DDR memories, each corresponding to the memory area 201 of the memory module 200.
In this embodiment, the data processing module 300 includes a trigger detection unit 301, a data capture unit 302, and a read/write control unit 303.
in the scroll mode, the trigger detection unit 301 detects a trigger event on input data in response to an external trigger enable instruction, and generates a trigger capture signal when a preset trigger condition is satisfied.
The data grabbing unit 302 grabs input data of a full frame as trigger data according to a preset rule in response to the trigger grabbing signal; wherein, the trigger data at least comprises one trigger point.
it can be understood that, when the display device supporting rolling triggering is in the rolling mode, the data processing module acquires continuous input data, and at this time, responds to the triggering instruction, continuous triggering detection is performed on the input data, when the input data meets the preset triggering condition, the current triggering moment is recorded as a triggering point, the triggering point is taken as a reference, and the input data of a preset unit time is captured as the triggering data according to a preset storage rule.
The storage depth of the full frame is configurable, and the full frame can be the depth of the waveform displayed by the display device supporting rolling triggering, such as the depth of the waveform of a single frame displayed by the oscilloscope.
The trigger data is not necessarily data for which the trigger is not available, but may be data of interest to the user in the input data, which is related to the trigger condition set by the user. The preset trigger condition can be a plurality of triggers such as pulse width trigger, edge trigger, slope trigger, level trigger, amplitude trigger, frequency trigger and the like.
In some embodiments, for input data with multiple trigger points, there may be a case where trigger data of two adjacent frames that are grabbed overlap in time, but at least one trigger point is included in the grabbed trigger data.
in some embodiments, the preset rules include configuring a full frame storage depth and a pre-trigger point storage depth, and a preset grabbing rule when grabbing trigger data.
in some embodiments, the preset grabbing rule when grabbing trigger data may be:
And for each trigger point meeting the preset trigger condition, according to the configured full frame storage depth and the storage depth before the trigger point, taking the moment corresponding to the trigger point as a reference, capturing the input data of the full frame as trigger data and storing the trigger data.
It can be understood that, for each trigger point satisfying the preset trigger condition, input data of a full frame is individually grabbed as trigger data based on the trigger point. That is, according to the grabbing rule, each trigger point satisfying the preset trigger condition corresponds to one frame of trigger data, but each frame of trigger data may include a plurality of trigger points, that is, there may be a case that the trigger data of two adjacent grabbed frames overlap in time.
for example, a specific step of capturing trigger data according to a preset rule is:
S1, acquiring a storage depth before a trigger point;
S2, calculating a grabbing starting point when grabbing is obtained by taking the trigger point as a reference; the grabbing starting point is positioned at a time of a time length corresponding to the storage depth before the trigger point before the time corresponding to the trigger point;
s3, capturing input data of a full frame from a capturing starting point as trigger data.
It will be appreciated that when the input data meets the preset trigger condition, the trigger point of the event trigger is a time point in order to meet the full frame storage and full frame display, and thus the trigger data including the trigger point needs to be grabbed. The trigger detection unit 301 may be configured with a full frame storage depth and a storage depth before a trigger point, where the full frame storage depth may be understood as a duration of full frame data, the storage depth before the trigger point may be understood as a duration before the trigger point, when capturing trigger data, the trigger point is taken as a reference point, the duration corresponding to the storage depth before the trigger point is in reverse order, and the duration is taken as a capturing starting point, and captures input data of a time base corresponding to the full frame storage depth as trigger data.
in some embodiments, the preset grabbing rule when grabbing trigger data may further be:
Capturing the trigger data without taking the corresponding moment of each trigger point as a reference when the trigger point exists in the trigger data of the previous frame; when the trigger point does not exist in the trigger data of the previous frame, the input data of the full frame is grabbed as the trigger data and stored according to the configured storage depth of the full frame and the storage depth before the trigger point by taking the time corresponding to the trigger point as a reference.
It can be understood that, when a trigger point satisfying a preset trigger condition already exists in a certain frame of trigger data, for the case that the trigger point can acquire its change, in order to save storage space, the trigger point can be skipped without performing separate trigger data capturing, and capturing or judging of trigger data of the next trigger point can be performed. Specifically, for the first trigger point meeting the preset trigger condition, capturing the input data of the full frame according to the preset capturing rule as trigger data, in order to save storage space, for each subsequent trigger point meeting the preset trigger condition, firstly judging whether the trigger point exists in the trigger data of the previous frame, if so, indicating that the trigger point is captured, and if not, capturing the input data of the full frame as the trigger data according to the configured storage depth of the full frame and the storage depth before the trigger point by taking the moment corresponding to the trigger point as a reference. That is, according to the grabbing rule, each trigger point satisfying the preset trigger condition no longer corresponds to one frame of trigger data, but all trigger points are contained in the grabbed trigger data.
It should be noted that, for whether the trigger point exists in the trigger data of the previous frame, the comparison can be performed in the time dimension by a data comparison determination manner, for example, according to the time corresponding to the trigger point, if the trigger point at the same time exists, the current trigger point is skipped, and the comparison of the next trigger point is performed; the image comparison method may also be an image method, for example, capturing trigger data of a full frame for each trigger point, buffering the captured trigger data as an image corresponding to the trigger data, comparing the images corresponding to the trigger data of the previous frame with the trigger data of the current frame, if there is a coincident trigger point, writing the buffered trigger data of the previous frame into a storage area, and not storing the trigger data of the current frame, but comparing the trigger data of the next frame. For other comparison modes, the description thereof will not be repeated here.
The read-write control unit 303 is configured to control writing of input data and trigger data into a plurality of storage areas of the storage module, respectively; and, when display is required, the read-write control unit 303 can control reading of the input data and the trigger data stored in the storage area to realize that the input data and the trigger data can be displayed alone or in combination.
It may be understood that after the user turns on the display device, a scroll trigger detection instruction is input, the trigger detection unit detects a trigger event on input data collected by the data collection module in response to a trigger enabling instruction, that is, the scroll trigger detection instruction, and when a preset trigger condition is satisfied, generates a trigger grabbing signal and transmits the trigger grabbing signal to the data grabbing unit, the data grabbing unit grabs input data of a full frame as trigger data according to a preset rule in response to the trigger grabbing signal, and the read-write control unit 303 controls the input data and the trigger data to be written into a plurality of storage areas of the storage module respectively for classification storage.
When the user initiates a display request, input data is read from a plurality of storage areas and trigger data is waited for display by the read-write control unit 303. The display request includes the type, the number or the display combination form of the data to be displayed, for example, the input data is displayed separately, the trigger data captured by three frames nearest to the current frame is displayed, or the input data of the current frame and the trigger data captured by multiple frames nearest to the current frame are displayed simultaneously, so that the input data and the trigger data can be displayed separately or in combination.
Correspondingly, in some embodiments, the read/write control unit 303 may be a control unit with a more comprehensive function and higher performance, or may be a plurality of control subunits, where the number of control subunits is the same as and corresponding to the number of storage areas 201 in the storage module 200, and each control subunit is used to control writing and reading of its corresponding storage area.
In summary, the display device supporting rolling triggering provided by the embodiment of the application comprises a data acquisition module, a storage module and a data processing module, wherein in a rolling mode, the data processing module responds to an external triggering enabling instruction to detect a triggering event of acquired input data, and when a preset triggering condition is met, the input data of a full frame is grabbed according to a preset rule to serve as triggering data; the trigger data at least comprises one trigger point; when display is required, the input data and the trigger data are read, so that the input data and the trigger data can be displayed singly or in combination.
Compared with the prior art, the application realizes the continuous triggering detection of input data for a plurality of times, grabs the triggering data of a plurality of frames according to the preset storage rule, can read the input data and the triggering data of a plurality of frames when displaying waveforms, and respectively displays the input data of the current frame and the triggering data of at least one frame by displaying a plurality of display windows, so that the triggering data which meet the triggering conditions for a plurality of times can be displayed and analyzed singly or in a combined way, a user can observe and analyze the data concerned more conveniently, and the debugging efficiency of the user is improved.
Fig. 2 is a schematic structural diagram of a display device supporting scrolling triggering according to a second embodiment of the present application. As shown in fig. 2, on the basis of any of the above embodiments, the display device supporting scrolling triggering provided in this embodiment further includes a display module 400.
The display module 400 includes a main window and at least one sub window for displaying input data and trigger data. In some embodiments, the main window is used to display the input data of the current frame and the sub-window is used to display the trigger data.
It will be appreciated that when a user initiates a display request, the input data and trigger data characterized by the display request are read from the plurality of storage areas by the read-write control unit 303 to await display. The display request includes the type, the number or the display combination form of the data to be displayed, for example, the input data is displayed separately, the trigger data captured by three frames nearest to the current frame is displayed, or the input data of the current frame and the trigger data captured by multiple frames nearest to the current frame are displayed simultaneously, so that the input data and the trigger data can be displayed separately or in combination. When a user initiates a display request, after data processing, the input data of the current frame can be displayed through the main window, and the multi-frame trigger data to be analyzed can be respectively displayed through a plurality of sub-windows, so that the trigger data meeting the trigger conditions for a plurality of times can be displayed and analyzed singly or in a combined way, the user can observe and analyze the data concerned more conveniently, and the debugging efficiency of the user is improved.
In some embodiments, the main window and the sub-window may be arranged in a wrap around, parallel or overlapping arrangement in position, and the main window and the sub-window may be draggable, with magnification selected when viewing details is desired.
In some embodiments, the sub-window may display a picture of the trigger data, or may display an original waveform of the trigger data.
In some embodiments, in the running or stop mode of the display device supporting scrolling triggers, the sub-window displaying the trigger data may be scaled, the data may be horizontally, vertically moved and scaled, the trigger details for viewing the trigger data may be more intuitively measured and analyzed for the data.
fig. 3 is a schematic structural diagram of a display device supporting scrolling triggering according to a third embodiment of the present application. As shown in fig. 3, on the basis of any of the above embodiments, the data processing module 300 in the display device supporting rolling triggering provided in this embodiment further includes a full frame detection unit 304 and a delay unit 305.
The full frame detection unit 304 is configured to detect whether input data before and after a trigger point is enough to capture trigger data of a full frame according to a preset rule.
The delay unit 305 is configured to, when input data before and after the trigger point is detected to be insufficient to capture trigger data of a full frame, wait for a required delay period, and then capture the trigger data.
it will be appreciated that when the input signal satisfies the preset trigger condition, in order to make the display window display full frames and the storage area of the storage module store data without dead zone, the captured trigger data is generally set to be full frames, for example, the depth of full frames display/storage is 10s, and the trigger point is 7s from time 0, at this time, the acquired input signal is at least 10s, so that full frames display or storage can be realized. Therefore, the full frame detection unit 304 is required to obtain the full frame storage depth according to the preset rule, and detect whether the input data before and after the trigger point is enough to capture the trigger data of the full frame according to the trigger point and the full frame storage depth. When input data before and after a trigger point is detected to be enough to capture trigger data of a full frame, capturing the input data of the full frame according to a preset rule as the trigger data; when the input data before and after the trigger point is detected to be insufficient to capture the trigger data of the full frame, the input data is required to be continuously waited to receive more input data until the input data is sufficient to capture the trigger data of the full frame, and then capturing the trigger data.
Fig. 4 is a schematic structural diagram of a display device supporting scrolling triggering according to a fourth embodiment of the present application. As shown in fig. 4, on the basis of any of the above embodiments, the data processing module 300 in the display device supporting scrolling triggering provided in this embodiment further includes a first data buffer unit 306, a second data buffer unit 307, and a display data processing unit 308.
The first data buffering unit is configured to buffer the input number acquired by the data acquisition module 100 and transmit the input number to the trigger detection unit 301.
The second data buffer unit 307 is configured to buffer trigger data to be displayed, which is read from the plurality of storage areas 201 in the storage module 200. After capturing the trigger data, the read-write control unit 303 controls writing the captured multi-frame trigger data into the storage area 201, and when the display is required, the read-write control unit 303 controls reading the multi-frame trigger data to be displayed from the storage area 201, and the multi-frame trigger data is buffered in the second data buffering unit 307.
It should be noted that, the configuration parameters of the first data buffer unit and the second data buffer unit may be the same or different, for example, parameters such as storage space, depth, width, etc., and the configuration parameters of the first data buffer unit and the second data buffer unit are related to the waveform spectrum data of the corresponding category that needs to be buffered.
The display data processing unit 308 is configured to receive the trigger data to be displayed, which is transmitted by the second data buffering unit 307, and convert the trigger data to be displayed into data to be displayed.
In some embodiments, when the display module 400 displays the data, the data may be the same waveform data as the input data, or may be a picture of the trigger data.
It should be noted that, the display device supporting rolling triggering according to any embodiment of the present application may be a device having a waveform display function, such as an oscilloscope, a multimeter, or a data acquisition switch device.
in summary, the display device supporting rolling triggering provided by the embodiment of the application displays the input data of the current frame and at least one frame of triggering data respectively through displaying a plurality of display windows, so that the triggering data meeting the triggering conditions for a plurality of times can be displayed and analyzed singly or in combination.
The embodiment of the application also provides a data processing method for rolling triggering, which is applied to the display device supporting rolling triggering in any embodiment, and the display device supporting rolling triggering at least comprises a data acquisition module 100, a storage module 200, a data processing module 300 and a display module 400. Fig. 5 is a flowchart of a method for processing rolling trigger data according to an embodiment of the present application. As shown in fig. 5, the method for processing rolling trigger data provided in this embodiment specifically includes the following steps:
Step S510, acquiring continuous input data.
In step S520, in the scroll trigger mode, trigger event detection is performed on the input data in response to an external trigger enabling instruction.
step S530, when the input data meets the preset trigger condition, capturing the input data of the full frame as the trigger data according to the preset rule; wherein, the trigger data at least comprises one trigger point.
and step S540, when the display is needed, the input data and the trigger data are read, so that the input data and the trigger data can be displayed singly or in combination.
It can be understood that, when the display device supporting rolling triggering is in the rolling mode, the data processing module acquires continuous input data, and at this time, responds to the triggering instruction, carries out continuous triggering detection on the input data, records the current triggering moment as a triggering point when the input data meets the preset triggering condition, takes the triggering point as a reference, captures the input data of a preset unit time as triggering data according to a preset storage rule, and individually stores the triggering point. When display is needed, the input data and the trigger data stored in the storage area are read, so that the input data and the trigger data can be displayed singly or in combination.
The data processing method for rolling triggering provided by the embodiment of the application realizes that the display equipment supporting rolling triggering can trigger for a plurality of times in a rolling mode, captures triggering data of a plurality of segments of preset unit time according to a preset storage rule through continuous triggering detection of input data, can read out multi-frame triggering data when displaying waveforms, respectively displays the input data of a current frame and at least one frame of triggering data through a plurality of display windows, can display and analyze the triggering data which meet the triggering conditions for a plurality of times singly or in a combined way, can observe and analyze data concerned by a user more conveniently, and improves the debugging efficiency of the user.
In some embodiments, the preset rules include configuring a full frame storage depth and a storage depth before a trigger point, and presetting a grabbing rule when grabbing the trigger data.
It will be appreciated that the full frame memory depth is the length of time that a display device supporting scrolling triggers can display data, e.g., the length of a single frame waveform that an oscilloscope can display, is configurable.
To satisfy full frame storage and full frame display, the trigger point of event triggering is a time point, and in order to observe the situation before triggering, in some embodiments, the depth of storage before the trigger point is configured, that is, the waveform duration before the trigger point is hoped to be intercepted.
in some embodiments, the preset grabbing rule when grabbing trigger data may be:
And for each trigger point meeting the preset trigger condition, according to the configured full frame storage depth and the storage depth before the trigger point, taking the moment corresponding to the trigger point as a reference, capturing the input data of the full frame as trigger data and storing the trigger data.
in some embodiments, the preset grabbing rule when grabbing trigger data may further be:
Capturing the trigger data without taking the corresponding moment of each trigger point as a reference when the trigger point exists in the trigger data of the previous frame; when the trigger point does not exist in the trigger data of the previous frame, the input data of the full frame is grabbed as the trigger data and stored according to the configured storage depth of the full frame and the storage depth before the trigger point by taking the time corresponding to the trigger point as a reference.
Fig. 6 is a flowchart of capturing trigger data according to an embodiment of the present application. As shown in fig. 6, in step S530, capturing input data of a full frame as trigger data according to a preset rule, specifically includes the following steps:
Step S610, acquiring the storage depth before the trigger point;
step S620, calculating a grabbing starting point when grabbing is obtained by taking a trigger point as a reference; the grabbing starting point is positioned at a time before the time corresponding to the trigger point, and the time corresponding to the depth of storage before the trigger point is positioned at the time corresponding to the trigger point;
step S630, capturing the input data of the full frame from the capturing start point as the trigger data.
it can be understood that when capturing the input data of the full frame according to the preset rule as the trigger data, firstly, the storage depth before the trigger point configured by the user is obtained, namely, the time length of the data before the trigger point is captured, then the trigger point is taken as the reference point, the time length corresponding to the storage depth before the trigger point is in reverse order, the time length is taken as the capturing starting point, and after the capturing starting point is determined, the input data of the full frame is captured from the capturing starting point as the trigger data.
Fig. 7 is a flowchart of capturing trigger data according to another embodiment of the present application. As shown in fig. 7, in step S530, capturing input data of a full frame as trigger data according to a preset rule, specifically includes the following steps:
step S710, acquiring the storage depth before the trigger point;
Step S720, calculating a grabbing starting point when grabbing is obtained by taking the triggering point as a reference; the grabbing starting point is positioned at a time before the time corresponding to the trigger point, and the time corresponding to the depth of storage before the trigger point is positioned at the time corresponding to the trigger point;
Step S730, acquiring the storage depth of the full frame;
Step 740, calculating a delay time period of input data before and after the trigger point enough to grasp the trigger data of the full frame according to the full frame storage depth and the trigger point front storage depth;
Step S750, after waiting for the delay period, capturing the input data of the full frame according to a preset rule as trigger data.
Steps S710 to S720 are the same as those in the above embodiment, and are not repeated here.
It will be appreciated that when the input signal satisfies the preset trigger condition, in order to make the display window display full frames and the storage area of the storage module store data without dead zone, the captured trigger data is generally set to be full frames, for example, the depth of full frames display/storage is 10s, and the trigger point is 7s from time 0, at this time, the acquired input signal is at least 10s, so that full frames display or storage can be realized. Therefore, it is required to obtain the full frame storage depth according to the preset rule, and detect whether the input data before and after the trigger point is enough to capture the trigger data of the full frame according to the trigger point and the full frame storage depth. When input data before and after a trigger point is detected to be enough to capture trigger data of a full frame, capturing the input data of the full frame according to a preset rule as the trigger data; when the input data before and after the trigger point is detected to be insufficient to capture the trigger data of the full frame, the input data is required to be continuously waited to receive more input data until the input data is sufficient to capture the trigger data of the full frame, and then capturing the trigger data.
In this embodiment, after determining the grabbing start point in step S720, the full frame storage depth is first obtained, and then, according to the full frame storage depth and the storage depth before the trigger point, a delay period of the input data before and after the trigger point, which is a delay period at least equal to a difference of a corresponding duration of the full frame storage depth minus a corresponding duration of the storage depth before the trigger point, is calculated.
and assuming that the storage depth corresponding time length of the full frame is M and the storage depth corresponding time length before the trigger point is P, the delay period needs to meet R not less than M-P, and then the full frame trigger data containing the trigger point is sufficiently captured.
After the waiting delay period is determined, input data of a full frame is grasped as trigger data from the determined grasping start point.
In some embodiments, when data is input for a frame other than the last frame of captured trigger data, the trigger point in the trigger data is in the middle.
It can be understood that, for the observation time set by the user, multiple trigger events may occur in this time period, and for the trigger point close to the start time period, when capturing trigger data, the storage depth before the configured trigger point may be half of the storage depth of the full frame, where the trigger point is located in the middle of the captured trigger data, so that the user is convenient to observe the data change in the time period before and after the trigger point.
however, for a trigger point near the end time period, since the trigger waveform is captured in reverse order of one frame from the end time point, the trigger point is included, and even if the pre-trigger point storage depth is half the full frame storage depth, the trigger point is not in the middle of the trigger data of the last frame, but is necessarily the trigger data of the full frame.
Fig. 8 is a schematic diagram of a captured trigger waveform according to an embodiment of the present application. In the example of the data processing method for rolling triggering provided in this embodiment, assume that in the rolling mode, a period of input data with a duration of 30s includes 4 trigger points A, B, C and D, which are respectively located at 5s, 7s, 19s and 26s of the input data, where the storage depth before the preset trigger point is 5, and the storage depth of full frame is 10, that is, the duration corresponding to the pre-triggering is 5s and the duration corresponding to the full frame is 10s, and the data processing method for rolling triggering according to the embodiment of the present application captures the trigger data, as shown in fig. 8 specifically:
for the trigger point a, the trigger point a occurs at 5s, the corresponding duration is pre-triggered in reverse order from 5s, the waiting delay period is at least 10s-5 s=5s, that is, the first segment of captured trigger data is 0-10 s, and the trigger point a can be stored in the first storage area of the storage module, and can be selectively displayed in the first sub-window when the trigger point a needs to be displayed.
For trigger point B, which occurs at 7s, the first piece of trigger data includes trigger point B because it is included in the delay period of the first piece of trigger data.
For the trigger point C, which occurs at 19s, the corresponding duration of 5s is pre-triggered in a forward and reverse order at 19s, the waiting delay period is at least 10s-5 s=5s, that is, the second segment of captured trigger data is 14-24 s, which can be stored in the second storage area of the storage module, and can be selectively displayed in the second sub-window when display is required.
For the trigger point D, which occurs at 26s, the corresponding duration 5s is pre-triggered in a forward reverse order at 26s, and the waiting delay period is at least 10s-5 s=5s, but since the rolling trigger is finished at 30s, it can be known that the trigger point D is located in the input data of the last frame, when the trigger data is grabbed, only the input data of the last frame needs to be grabbed, that is, the grabbed third segment trigger data is 20-30 s, which can be stored in the third storage area of the storage module, and when the trigger data needs to be displayed, the trigger point D can be selectively displayed in the main window, and of course, other sub-windows can also be selected for displaying, which is not limited herein.
Fig. 9 is a schematic diagram of a captured trigger waveform according to another embodiment of the present application. Based on the above specific example, for the trigger point B, it occurs at 7s, or the trigger point B may also be used as a reference to capture trigger data according to a preset rule, that is, the corresponding duration 5s is pre-triggered in reverse order from 7s, where the waiting delay period is at least 10s-5 s=5s, that is, the captured first segment of trigger data is 2-12 s, which may be stored in the second storage area of the storage module, and may be selectively displayed in the second sub-window when display is required.
The trigger points A, C and D still capture trigger data according to the above embodiments, and are not described herein.
it can be seen that, in the embodiment of the present application, the captured trigger data includes at least one trigger point, or as shown in fig. 9, there may be multiple trigger points, where the captured trigger data of two adjacent frames may overlap in time.
In summary, the display device supporting rolling triggering and the data processing method thereof provided by the embodiment of the application comprise a data acquisition module, a storage module and a data processing module, wherein in a rolling mode, the data processing module responds to an external triggering enabling instruction to detect a triggering event of acquired input data, and when a preset triggering condition is met, the data processing module captures the input data of a full frame as triggering data according to a preset rule; the trigger data at least comprises one trigger point; when the display is needed, the input data and the trigger data are read so as to realize that the input data and the trigger data can be displayed singly or in combination.
Compared with the prior art, the application realizes the continuous triggering detection of input data for a plurality of times, grabs the triggering data of a plurality of frames according to the preset storage rule, can read the input data and the triggering data of a plurality of frames when the waveform is displayed, and then displays the input data of the current frame and the triggering data of at least one frame respectively through a plurality of display windows, so that the triggering data which meet the triggering conditions for a plurality of times can be displayed and analyzed singly or in a combined way, a user can observe and analyze the data concerned more conveniently, and the debugging efficiency of the user is improved.
the embodiment of the application also provides a readable storage medium, and the readable storage medium stores a program or an instruction, which realizes the rolling triggering data processing method when being executed by a processor, and can achieve the same technical effect, and the repetition is avoided, and the description is omitted here.
The processor is a processor in the electronic device in the above embodiment. Readable storage media include computer readable storage media such as computer readable memory ROM, random access memory RAM, magnetic or optical disks, and the like.
Those skilled in the art will appreciate that all or part of the functions of the various methods in the above embodiments may be implemented by hardware, by a computer program, or by software plus necessary general hardware platforms. When all or part of the functions in the above embodiments are implemented by means of a computer program, the program may be stored in a computer readable storage medium, and the storage medium may include: read-only memory, random access memory, magnetic disk, optical disk, hard disk, etc., and the program is executed by a computer to realize the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the functions described above can be realized. In addition, when all or part of the functions in the above embodiments are implemented by means of a computer program, the program may be stored in a storage medium such as a server, another computer, a magnetic disk, an optical disk, a flash disk, or a removable hard disk, and the program in the above embodiments may be implemented by downloading or copying the program into a memory of a local device or updating a version of a system of the local device, and when the program in the memory is executed by a processor.
While the embodiments of the present application have been described above with reference to the drawings, the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and several simple deductions, modifications and substitutions may be made by those skilled in the art without departing from the spirit of the present application and the scope of the claims, which are within the scope of the present application, according to the idea of the present application.
Claims (10)
1. a display device supporting scrolling triggers, comprising:
The data acquisition module is used for acquiring continuous input data;
A memory module including a plurality of memory regions;
The data processing module comprises a trigger detection unit, a data grabbing unit and a read-write control unit;
In a rolling mode, the trigger detection unit responds to an external trigger enabling instruction to detect a trigger event of the input data, and generates a trigger grabbing signal when a preset trigger condition is met;
The data grabbing unit is used for responding to the trigger grabbing signal and grabbing the input data of the full frame according to a preset rule to serve as trigger data; the trigger data at least comprises one trigger point;
The read-write control unit is used for controlling the input data and the trigger data to be written into the storage areas of the storage module respectively; and when the display is required, the read-write control unit can respectively control and read the input data and the trigger data stored in the storage area so as to realize that the input data and the trigger data can be displayed singly or in combination.
2. The scroll-triggered display device of claim 1, further comprising a display module;
The display module comprises a main window and at least one sub window, wherein the main window is used for displaying input data of a current frame; the sub-window is used for displaying the trigger data.
3. the scroll-activated display device of claim 1, wherein the scroll-activated display device is configured to display a display screen,
The data processing module further comprises a full frame detection unit and a delay unit;
the full frame detection unit is used for detecting whether input data before and after the trigger point is enough to capture trigger data of a full frame according to the preset rule; the preset rule comprises the steps of configuring full frame storage depth and storage depth before a trigger point;
And the delay unit is used for waiting for a required delay period and then grabbing the trigger data when the input data before and after the trigger point is detected to be insufficient to grab the trigger data of the full frame.
4. A display device supporting scrolling triggering according to claim 3, wherein the preset rules further comprise a grabbing rule when grabbing the triggering data, in particular:
according to the configured full frame storage depth and the trigger point front storage depth, capturing the input data of the full frame as the trigger data and storing the trigger data by taking the moment corresponding to the trigger point as a reference for each trigger point meeting the preset trigger condition;
Or,
For each trigger point meeting a preset trigger condition, when the trigger point exists in the trigger data of the previous frame, capturing the trigger data without taking the time corresponding to the trigger point as a reference; and when the trigger point is not in the trigger data of the previous frame, according to the configured full frame storage depth and the trigger point front storage depth, taking the time corresponding to the trigger point as a reference, capturing the input data of the full frame as the trigger data and storing the trigger data.
5. The display device supporting rolling triggers according to claim 1, wherein the memory module comprises a DDR memory, the DDR memory being divided into a plurality of memory areas; alternatively, the memory module includes a plurality of DDR memories, each of the DDR memories corresponding to the memory area;
the data processing module further comprises a first data caching unit, a second data caching unit and a display data processing unit;
The first data caching unit is used for caching the input data;
the second data caching unit is used for caching the trigger data to be displayed, which are read from the storage areas;
The display data processing unit is used for receiving the trigger data to be displayed, which is transmitted by the second data caching unit, and converting the trigger data to be displayed into data to be displayed.
6. The scroll-activated display device of claim 1, wherein the scroll-activated display device is an oscilloscope, a multimeter, or a data acquisition switch device.
7. The data processing method for the rolling trigger is applied to the display equipment supporting the rolling trigger, and the display equipment supporting the rolling trigger comprises a data acquisition module, a storage module and a data processing module; the data processing method is characterized by comprising the following steps:
Acquiring continuous input data;
In a rolling trigger mode, responding to an external trigger enabling instruction, and detecting a trigger event of the input data;
When the input data meets a preset trigger condition, capturing the input data of a full frame according to a preset rule as trigger data; the trigger data at least comprises one trigger point;
and when the display is needed, respectively reading the input data and the trigger data so as to realize that the input data and the trigger data can be displayed singly or in combination.
8. the method according to claim 7, wherein the preset rule includes configuring a full frame storage depth and a pre-trigger point storage depth, and presetting a grabbing rule when grabbing the trigger data;
the preset grabbing rule when grabbing the trigger data specifically comprises the following steps:
according to the configured full frame storage depth and the trigger point front storage depth, capturing the input data of the full frame as the trigger data and storing the trigger data by taking the moment corresponding to the trigger point as a reference for each trigger point meeting the preset trigger condition;
Or,
For each trigger point meeting a preset trigger condition, when the trigger point exists in the trigger data of the previous frame, capturing the trigger data without taking the time corresponding to the trigger point as a reference; and when the trigger point is not in the trigger data of the previous frame, according to the configured full frame storage depth and the trigger point front storage depth, taking the time corresponding to the trigger point as a reference, capturing the input data of the full frame as the trigger data and storing the trigger data.
9. The method for processing rolling-triggered data according to claim 8, wherein the capturing the input data of a full frame according to a preset rule as trigger data comprises:
Acquiring the storage depth before the trigger point;
taking the moment corresponding to the trigger point as a reference, and calculating a grabbing starting point when grabbing is obtained; the grabbing starting point is located at a time of a time length corresponding to the storage depth before the trigger point before the time corresponding to the trigger point;
and capturing the input data of the full frame from the capturing starting point as trigger data.
10. The method for processing rolling-triggered data according to claim 8, wherein the capturing the input data of a full frame according to a preset rule as trigger data comprises:
Acquiring the storage depth before the trigger point;
taking the moment corresponding to the trigger point as a reference, and calculating a grabbing starting point when grabbing is obtained; the grabbing starting point is located at a time of a time length corresponding to the storage depth before the trigger point before the time corresponding to the trigger point;
Acquiring a full frame storage depth;
calculating a delay time period of input data before and after the trigger point enough to grasp trigger data of a full frame according to the full frame storage depth and the trigger point front storage depth;
after waiting for the delay period, capturing the input data of the full frame according to a preset rule as trigger data.
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