Waveform selection method and apparatus, device, and storage medium

Abstract

A waveform selection method and apparatus, a device, and a storage medium. The method comprises: in response to a click operation of a user, determining a click position on a display (S110); on the basis of the click position, determining a waveform selection region (S120); respectively determining waveform energy of multiple channel waveforms in the waveform selection region (S130); and on the basis of the waveform energy of the multiple channel waveforms, selecting a target waveform from among the multiple channel waveforms (S140).

Description

A waveform selection method, device, equipment and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 28, 2023, with application number 202311600510.8, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of signal processing technology, and for example, to a waveform selection method, apparatus, device, and storage medium. Background Art

[0003] A digital oscilloscope is a widely used electronic test and measurement device with multiple channels for receiving signals. When a digital oscilloscope receives signals from at least one device under test (DUT), it can simultaneously display the corresponding waveforms of these signals on a display through each channel.

[0004] Because digital oscilloscopes can display waveforms for more than one channel in the same waveform display area, users who wish to adjust a specific channel's waveform must first select the corresponding waveform. Typically, users select a target waveform by tapping it with a finger or clicking it with a mouse pointer. In this case, the user must tap on the oscilloscope screen to separate the target waveform from the other waveforms, ensuring that their finger or mouse pointer does not touch other waveforms. However, multiple channel waveforms often overlap on an oscilloscope with limited screen size, making it difficult to find a large enough area to distinguish the target waveform from the others. Furthermore, even if two waveforms appear separate on the screen, because both finger taps and mouse pointer clicks have a specific response area, users may actually touch multiple waveforms when selecting them. This can cause the digital oscilloscope to select the wrong waveform, resulting in an incorrect response. Summary of the Invention

[0005] The present application provides a waveform selection method, apparatus, device and storage medium to effectively identify user click intentions and improve the accuracy of waveform selection.

[0006] In a first aspect, a waveform selection method is provided, the method comprising:

[0007] In response to a click operation by the user, determining a click position on the display;

[0008] determining a waveform selection area based on the click position;

[0009] respectively determining waveform energies of a plurality of channel waveforms within the waveform selection area;

[0010] A target waveform is selected from the plurality of channel waveforms according to the waveform energies of the plurality of channel waveforms.

[0011] Optionally, determining the waveform selection area based on the click position includes:

[0012] A display area including the click position and having a preset calculated area is used as a waveform selection area.

[0013] Optionally, the click position is located at the center of the waveform selection area.

[0014] Optionally, the waveform selection area is a circle or a right-angled quadrilateral.

[0015] Optionally, respectively determining the waveform energies of the waveforms of the multiple channels in the waveform selection area includes:

[0016] For each channel waveform included in the waveform selection area, the waveform brightness area integral of the channel waveform in the waveform selection area is taken as the waveform energy of the channel waveform.

[0017] Optionally, selecting a target waveform from the multiple channel waveforms according to the waveform energies of the multiple channel waveforms includes:

[0018] determining, according to the waveform energies of the plurality of channel waveforms, an energy proportion of each channel waveform in the waveform selection area;

[0019] The channel waveform with the highest energy proportion is determined as the target waveform selected by the user.

[0020] Optionally, the clicking operation includes a touch display clicking operation and a mouse clicking operation.

[0021] In a second aspect, a waveform selection device is provided, the device comprising:

[0022] a click position determination module configured to determine a click position on the display in response to a click operation by the user;

[0023] a selection area determination module configured to determine a waveform selection area based on the click position;

[0024] a waveform energy statistics module configured to respectively determine the waveform energies of the waveforms of the plurality of channels in the waveform selection area;

[0025] The target waveform selection module is configured to select a target waveform from the multiple channel waveforms according to the waveform energies of the multiple channel waveforms.

[0026] In a third aspect, an electronic test and measurement device is provided, the device comprising:

[0027] at least one processor; and

[0028] a memory communicatively connected to the at least one processor; wherein,

[0029] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the waveform selection method described in the first aspect of the present application.

[0030] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the waveform selection method described in the first aspect of the present application when executed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a flow chart of a waveform selection method provided according to Embodiment 1 of the present application;

[0032] FIG2 is a schematic diagram showing the principle of a waveform selection method provided according to the first embodiment of the present application;

[0033] FIG3 is a schematic structural diagram of a waveform selection device provided according to Embodiment 2 of the present application;

[0034] FIG4 is a schematic structural diagram of an electronic test and measurement device for implementing the waveform selection method according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0036] It should be noted that the terms "first", "second", "target", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] Example 1

[0038] FIG1 is a flowchart of a waveform selection method according to a first embodiment of the present application. This embodiment is applicable to selecting a waveform from among multiple waveforms displayed on a display of electronic test and measurement equipment by clicking on it. The method can be performed by a waveform selection device, which can be implemented in hardware and / or software and can be configured in the electronic test and measurement equipment. As shown in FIG1 , the method includes steps S110 to S140.

[0039] S110 . In response to a click operation by the user, determine a click position on the display.

[0040] The waveform selection method provided in this embodiment can be applied to electronic test and measurement equipment such as digital oscilloscopes, and can also be applied to other electronic devices. This embodiment mainly takes the example of a user selecting a channel waveform displayed on a display of an electronic test and measurement device.

[0041] In this embodiment, the electronic test and measurement device can display waveforms corresponding to multiple channels on a display. When a user wants to select a waveform of a channel, a corresponding click operation can be performed. When the electronic test and measurement device receives the user's click operation, it can record the user's click position on the display.

[0042] In one embodiment, the click operation may include a touch display click operation and a mouse click operation.

[0043] In actual applications, users can directly touch the display to perform click operations, including touching the display with a finger or touching the display with a stylus. When the user touches the display to click, the contact point between the finger and the display can be used as the click location, or the contact point between the tip of the stylus and the display can be used as the click location. When the display is a capacitive screen, the user's touch location can be determined by measuring the capacitance change of the capacitive screen, and the coordinates of the click location can be calculated based on the timing of the touch event. When the display is a resistive touch screen, the user's touch location can be detected by the resistance change between the two layers of conductive film. When the display is an infrared touch screen, the location of the touch point can be detected by emitting and receiving infrared light beams. When a touch occurs, the light beam is blocked, thereby determining the click location.

[0044] The user can also use the mouse to click on the display. The user can move the mouse to make the mouse pointer move accordingly on the display. When the user clicks the mouse, the position of the mouse pointer is used as the click position.

[0045] It is understandable that the click operation in this embodiment is not limited to the touch display click operation and the mouse click operation. The waveform selection method in this embodiment can respond to any click operation supported by other technologies.

[0046] S120 : Determine a waveform selection area based on the click position.

[0047] In this embodiment, in order to reduce the probability of incorrect waveform selection due to display congestion and deviation in user click operations, the waveform selection is determined not simply by the click position, but by the waveform selection area associated with the click position. It is possible to comprehensively judge which channel waveform in the display is more inclined to the user's selection intention.

[0048] In one embodiment, S120 may be implemented in the following manner:

[0049] The display area containing the click position and having the preset calculated area is used as the waveform selection area.

[0050] In practical applications, the size of the waveform selection area can be determined according to the usage scenario. After clicking a position, an area with a preset calculated area near the click position is recorded as the waveform selection area.

[0051] Exemplarily, the click position is located at the center of the waveform selection area; the waveform selection area is a circle or a right-angled quadrilateral.

[0052] In general, although the location where the user clicks the display may vary, the clicked location generally reflects the approximate location of the waveform the user wants to select. Therefore, centering the waveform selection area around the clicked location can increase the probability of selecting the correct waveform. Generally, for ease of calculation, the waveform selection area can be selected as a circle or a rectangular rectangle.

[0053] It is understandable that the click position can also be located at any position in the waveform selection area, such as a vertex or edge of a rectangular quadrilateral.

[0054] In a specific example, a square with a first length as the side length can be determined as the waveform selection area with the click position as the center; a circle with a second length as the radius can be determined as the waveform selection area with the click position as the center; a rectangle with a third length as the long side and a fourth length as the short side can be determined as the waveform selection area with the click position as the center; and a square with the first length as the side length can be determined as the waveform selection area with the click position as the upper left corner vertex.

[0055] S130 , respectively determining waveform energies of the waveforms of the multiple channels within the waveform selection area.

[0056] In this embodiment, the waveform energy corresponding to each channel waveform included in the waveform selection area may be counted, thereby reflecting the distribution status of multiple channel waveforms in the waveform selection area.

[0057] In one embodiment, S130 may be implemented in the following manner:

[0058] For each channel waveform included in the waveform selection region, the waveform brightness area integral of the channel waveform in the waveform selection region is taken as the waveform energy of the channel waveform.

[0059] For example, the waveform energy of a channel waveform in the waveform selection area may refer to the accumulated brightness of each waveform point constituting the channel waveform in the waveform selection area, that is, the integral of the waveform brightness and the area in the waveform selection area, which may be roughly expressed as:

[0060] Waveform energy = ∑ waveform point brightness = ∫ waveform brightness * area.

[0061] S140 : Selecting a target waveform from the multiple channel waveforms according to the waveform energies of the multiple channel waveforms.

[0062] In this embodiment, the waveform energy of the channel waveform can reflect the distribution of the channel waveform in the waveform selection area. Therefore, by analyzing the waveform energy of each channel waveform, the target waveform with the user's selection intention can be selected.

[0063] In one embodiment, S140 may be implemented in the following manner:

[0064] According to the waveform energies of the multiple channel waveforms, the energy proportion of each channel waveform in the waveform selection area is determined; and the channel waveform with the highest energy proportion is determined as the target waveform selected by the user.

[0065] It can be understood that when a channel waveform has a high energy ratio in the waveform selection area, it may indicate that the user is more inclined to select the channel waveform when clicking the click position. Therefore, the channel waveform with the highest energy ratio in the waveform selection area can be determined as the target waveform selected by the user.

[0066] In particular, when the waveform energies of multiple channel waveforms in the waveform selection area are all lower than the preset energy threshold, the user's click operation can be considered an erroneous operation, and no channel waveform can be selected, and a corresponding prompt is given on the display.

[0067] FIG2 is a schematic diagram of the principle of a waveform selection method provided in accordance with Example 1 of the present application. As shown in FIG2 , the display of the electronic test and measurement equipment simultaneously displays channel waveform 1 and channel waveform 2, which have waveforms that are closer in distance. When the user needs to select channel waveform 1, the user touches the display with a finger or clicks the mouse. The black dot in the figure indicates the user's click position. With the click position as the center, a display area with a preset calculation area is divided as a waveform selection area, such as the display area shown in the dotted box in the figure. By calculating the waveform energy of channel waveform 1 and channel waveform 2 in the dotted box, it can be seen that the energy proportion of channel waveform 1 is higher than the energy proportion of channel waveform 2, so channel waveform 1 is selected as the target waveform.

[0068] The technical solution of the embodiment of the present application determines the click location on the display in response to a user's click operation; determines a waveform selection area based on the click location; determines the waveform energy of multiple channel waveforms within the waveform selection area; and selects a target waveform from the multiple channel waveforms based on the waveform energy of the multiple channel waveforms. The embodiment of the present application avoids the problem of the display simultaneously displaying multiple channel waveforms, the waveforms overlapping, and the user click area being blurred, resulting in the inability to correctly select the waveform desired by the user. The embodiment of the present application can effectively identify the user's click intention when selecting a waveform, thereby improving the accuracy of waveform selection.

[0069] Example 2

[0070] FIG3 is a schematic diagram of the structure of a waveform selection device provided in Example 2 of the present application. As shown in FIG3 , the device includes a click position determination module 310 , a selection area determination module 320 , a waveform energy statistics module 330 , and a target waveform selection module 340 .

[0071] The click position determination module 310 is configured to determine a click position on the display in response to a click operation of the user.

[0072] The selection area determination module 320 is configured to determine a waveform selection area based on the click position.

[0073] The waveform energy statistics module 330 is configured to respectively determine the waveform energy of the waveforms of multiple channels within the waveform selection area.

[0074] The target waveform selection module 340 is configured to select a target waveform from the multiple channel waveforms according to the waveform energies of the multiple channel waveforms.

[0075] Optionally, the selected area determination module 320 is configured to:

[0076] A display area including the click position and having a preset calculated area is used as a waveform selection area.

[0077] Optionally, the click position is located at the center of the waveform selection area.

[0078] Optionally, the waveform selection area is a circle or a right-angled quadrilateral.

[0079] Optionally, the waveform energy statistics module 330 is configured to:

[0080] For each channel waveform included in the waveform selection area, the waveform brightness area integral of the channel waveform in the waveform selection area is taken as the waveform energy of the channel waveform.

[0081] Optionally, the target waveform selection module 340:

[0082] determining, according to the waveform energies of the plurality of channel waveforms, an energy proportion of each channel waveform in the waveform selection area;

[0083] The channel waveform with the highest energy proportion is determined as the target waveform selected by the user.

[0084] Optionally, the clicking operation includes a touch display clicking operation and a mouse clicking operation.

[0085] The waveform selection device provided in the embodiments of the present application can execute the waveform selection method provided in any embodiment of the present application, and has a functional module corresponding to the execution method.

[0086] Example 3

[0087] Fig. 4 shows a schematic diagram of the structure of an electronic test and measurement device that can be used to implement an embodiment of the present application. The electronic test and measurement device of this embodiment can be a digital oscilloscope.

[0088] The number of signal channels of the electronic test and measurement equipment can be at least one, and this embodiment takes two signal channels as an example. As shown in Figure 4, the first channel of the electronic test and measurement equipment is configured to receive a first signal through a first port, and the second channel is configured to receive a second signal through a second port. The first channel and the second channel both include an attenuator, an amplifier, and an analog-to-digital converter (ADC). The attenuator is configured to reduce the signal power input to the test system and attenuate the input signal to within the operating range of the amplifier. The amplifier is configured to amplify or attenuate the signal and amplify or attenuate the input signal to the full scale range of the analog-to-digital converter (ADC). The analog-to-digital converter (ADC) is configured to digitize the signal output by the amplifier at a predetermined sampling rate to obtain a waveform of the signal input from the first channel and / or the second channel. The digitized waveform data is stored in a memory, and the data is output from the memory to a digital signal processor (DSP) for processing.

[0089] The electronic test and measurement equipment includes at least one processor and a memory connected to the at least one processor in communication, such as a read-only memory (ROM), a random access memory (RAM), etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) or the computer program loaded from the storage unit into the random access memory (RAM). In the RAM, various programs and data required for the operation of the electronic test and measurement equipment can also be stored. The processor, ROM and RAM are connected to each other via a bus. The processor can be various general and / or special processing components with processing and computing capabilities. Some examples of processors include but are not limited to a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors that run machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The processor executes the various methods and processes described above, such as the waveform selection method.

[0090] The processor performs control operations for the electronic test and measurement device and is configured to control the conditioning, acquisition, and display of a first signal waveform received from a first channel and a second signal waveform received from a second channel. When the electronic test and measurement device is an oscilloscope, the processor also includes a trigger control module configured to control signal triggering for waveform display. The trigger control module is further configured to control the horizontal time base, vertical scale, and offset of the display to appropriately display the waveforms.

[0091] A digital signal processor (DSP) receives and processes the digital signals stored in the memory and provided by the first channel and the second channel, so as to reconstruct and display the original input signals on the display.

[0092] The electronic test and measurement equipment also includes a display processor, a user input module and a display. The user input module is configured to receive information and data input by the user, the display processor receives the data input by the user and processes the waveform data, and displays the waveform of the first channel and / or the second channel on the display through a graphical user interface (GUI). The user input module may include a mouse, a keyboard, a trackball, a joystick, a touchpad, and the display may include a light-emitting diode (LED) display, an organic light-emitting diode (OLED) display, etc. In one embodiment, the user input module is a touch screen, in which case the user input module is arranged on the display.

[0093] The components shown herein, their connections and relationships, and their functions, are examples only, and are not meant to limit implementations of the application described and / or claimed herein.

[0094] In some embodiments, the waveform selection method can be implemented as a computer program that is tangibly contained in a computer-readable storage medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on an electronic device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by a processor, one or more steps of the waveform selection method described above can be performed. Alternatively, in other embodiments, the processor can be configured to perform the waveform selection method by any other appropriate means (e.g., by means of firmware).

[0095] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard parts (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0096] Computer programs for implementing the methods of the present application may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0097] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. A computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. A more specific example of a machine-readable storage medium can include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM (Erasable Programmable Read-Only Memory) or a flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0098] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (Cathode Ray Tube) or LCD (Liquid Crystal Display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0099] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0100] A computing system may include a client and a server. The client and server are generally remote from each other and typically interact via a communication network. The client-server relationship arises through computer programs running on the respective computers and establishing a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, a host product within a cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosts and virtual private server (VPS) services.

[0101] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this application can be achieved. This is not limited herein.

Claims

1. A waveform selection method, comprising: In response to a click operation by a user, determining a click position on the display; Based on the click position, determining a waveform selection area; respectively determining the waveform energies of the waveforms of the plurality of channels in the waveform selection area; A target waveform is selected from the plurality of channel waveforms according to the waveform energies of the plurality of channel waveforms.

2. The method according to claim 1, wherein: The step of determining the waveform selection area based on the click position includes: A display area including the click position and having a preset calculation area is used as a waveform selection area.

3. The method according to claim 2, wherein: The click position is located at the center of the waveform selection area.

4. The method according to claim 2, wherein: The waveform selection area is a circle or a right-angled quadrilateral.

5. The method according to claim 1, wherein: The separately determining the waveform energies of the waveforms of the multiple channels in the waveform selection area comprises: For each channel waveform included in the waveform selection region, the waveform brightness area integral of the channel waveform in the waveform selection region is taken as the waveform energy of the channel waveform.

6. The method according to claim 1, wherein: The step of selecting a target waveform from the plurality of channel waveforms according to the waveform energies of the plurality of channel waveforms comprises: Determining, according to the waveform energies of the multiple channel waveforms, the energy proportion of each channel waveform in the multiple channel waveforms within the waveform selection area; The channel waveform with the highest energy proportion is determined as the target waveform selected by the user.

7. The method according to claim 1, wherein: The click operation includes a touch display click operation and a mouse click operation.

8. A waveform selection device, comprising: A click position determination module, configured to determine a click position on the display in response to a click operation of a user; A selection area determination module, configured to determine a waveform selection area based on the click position; A waveform energy statistics module, configured to respectively determine the waveform energies of the waveforms of the multiple channels in the waveform selection area; The target waveform selection module is configured to select a target waveform from the multiple channel waveforms according to the waveform energies of the multiple channel waveforms.

9. An electronic test and measurement device comprising: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can perform the waveform selection method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a processor to implement the waveform selection method according to any one of claims 1 to 7 when executed.

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