WO2023184936A1 - Procédé et appareil de capture de forme d'onde anormale, dispositif électronique et support de stockage - Google Patents

Procédé et appareil de capture de forme d'onde anormale, dispositif électronique et support de stockage Download PDF

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Publication number
WO2023184936A1
WO2023184936A1 PCT/CN2022/126182 CN2022126182W WO2023184936A1 WO 2023184936 A1 WO2023184936 A1 WO 2023184936A1 CN 2022126182 W CN2022126182 W CN 2022126182W WO 2023184936 A1 WO2023184936 A1 WO 2023184936A1
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Prior art keywords
eye diagram
measurement
waveform
time
eye
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PCT/CN2022/126182
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English (en)
Chinese (zh)
Inventor
王飚
龚桂强
王悦
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普源精电科技股份有限公司
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Publication of WO2023184936A1 publication Critical patent/WO2023184936A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
    • G06F2218/08—Feature extraction
    • G06F2218/10—Feature extraction by analysing the shape of a waveform, e.g. extracting parameters relating to peaks

Definitions

  • This application belongs to the field of signal processing technology, and specifically relates to an abnormal waveform capture method, device, electronic equipment and storage medium.
  • the digital oscilloscope collects a large amount of waveform data in a short period of time and can be used to observe abnormalities in the waveform, that is, occasional waveform signals over a period of time.
  • the eye diagram is a graphic display of a series of digital signals accumulated on an oscilloscope. It contains rich information and reflects the overall characteristics of the digital signal.
  • Embodiments of the present application provide an abnormal waveform capturing method that can accurately capture abnormal waveforms in signals in real time.
  • embodiments of the present application provide a method for capturing abnormal waveforms.
  • the method includes: determining an eye diagram formed by the waveform to be detected at the first time; determining a first measurement item corresponding to the eye diagram; based on the eye diagram. Figure, determine the first measurement value corresponding to the first measurement item; when the first measurement value does not meet the first predetermined condition, output the abnormal waveform corresponding to the first time in the eye diagram.
  • embodiments of the present application provide a device for capturing abnormal waveforms.
  • the input module is used to determine the eye pattern formed by the waveform to be detected at the first time; the first determination module is used to determine the eye pattern corresponding to the eye pattern.
  • a first measurement item a first measurement item;
  • a second determination module configured to determine a first measurement value corresponding to the first measurement item based on the eye diagram;
  • an output module configured to determine when the first measurement value does not meet the first predetermined condition In the case of , output the abnormal waveform corresponding to the first time in the eye diagram.
  • inventions of the present application provide an electronic device.
  • the electronic device includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor.
  • the program or instructions are When executed by the processor, the steps of the abnormal waveform capturing method described in the first aspect are implemented.
  • embodiments of the present application provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the programs or instructions are executed by a processor, the abnormal waveform capture as described in the first aspect is achieved. Method steps.
  • inventions of the present application provide a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the first aspect.
  • the abnormal waveform capture method is used to run programs or instructions to implement the first aspect.
  • the eye diagram formed by the waveform to be detected at the first time is determined; the first measurement item corresponding to the eye diagram is determined; based on the eye diagram, the first measurement item corresponding to the first measurement item is determined. Measured value; when the first measured value does not meet the first predetermined condition, outputting the abnormal waveform corresponding to the first time in the eye diagram can accurately capture the abnormal waveform in the signal in real time.
  • Figure 1 is a schematic flowchart of a method for capturing abnormal waveforms provided by an embodiment of the present application
  • Figure 2 is a schematic flowchart of another abnormal waveform capture method provided by an embodiment of the present application.
  • Figure 3 is a schematic structural diagram of an abnormal waveform capturing device provided by an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the hardware structure of another electronic device provided by an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the figures so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in orders other than those illustrated or described herein, and that "first,” “second,” etc. are distinguished Objects are usually of one type, and the number of objects is not limited. For example, the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • Figure 1 shows a method for capturing abnormal waveforms provided by an embodiment of the present invention.
  • the method can be executed by an electronic device, and the electronic device can include: a server or a terminal device.
  • the method can be performed by software or hardware installed on the electronic device, and the method includes the following steps:
  • S101 Determine the eye pattern formed by the waveform to be detected at the first time.
  • the eye diagram of a digital signal contains rich information, reflects the overall characteristics of the digital signal, and can well evaluate the quality of the digital signal. Use the output of the transmission channel as the input of the oscilloscope to obtain the eye diagram corresponding to the signal before the violation occurs.
  • step S101 in this embodiment includes: inputting the waveform to be detected before the first time into a target oscilloscope; adjusting the scanning period of the target oscilloscope so that the level of the target oscilloscope is The scanning period is synchronized with the period of the received symbols; the eye diagram is obtained.
  • eye diagram parameters related to the eye diagram such as eye height, eye width, eye amplitude, eye cross ratio, "1" level, “0” level, extinction ratio, Q factor, average power, rise time, fall Time etc.
  • the first measurement item includes: at least one of an amplitude measurement item and a time measurement item.
  • the amplitude measurement items include: at least one of eye level, eye amplitude, eye crossing amplitude, eye crossing percentage, eye height, eye signal-to-noise ratio, quality (Q) factor, extinction ratio, and vertical eye opening.
  • the time measurement items include: at least one of eye crossing time, eye delay, deterministic jitter, rise time, fall time, eye width, horizontal eye opening, peak-to-peak jitter, random jitter, jitter root mean square, and total jitter.
  • a first measurement value corresponding to the first measurement item is determined.
  • the pixel points are counted on the picture formed by the eye diagram, and the corresponding measurement value is calculated according to the definition of the above measurement items.
  • the eye level is defined as the size of the "1" level and the "0" level in the eye diagram.
  • the algorithm counts the 20% area in the middle of the eye diagram, makes a histogram in the vertical direction, and calculates the mean of the two histograms. The one with a larger voltage amplitude is a "1" level, and the one with a smaller voltage amplitude is a "0" level. flat.
  • the eye height is defined as the difference between the voltage values of the eye diagram where the "1" level drops by 3 standard deviations ⁇ and the "0" level rises by 3 standard deviations ⁇ .
  • the algorithm calculates the standard deviation of the two histograms above and obtains the eye height according to the definition.
  • the crossover time is defined as the time point when the eye diagram cross point is on the horizontal axis.
  • the algorithm makes a histogram within the -Atotal*BW+Atotal*BW rectangular range, and the eye-crossing time is the time value corresponding to the mean of the two histograms.
  • -Atotal is the value of the eye "0" level
  • Atotal is the value of the eye "1" level
  • BW is generally selected to be 20%.
  • the rise time is defined as the time difference between 10% and 90% of the first rising edge of the eye diagram.
  • the algorithm determines the voltage values of 10% and 90% of the eye diagram based on the eye "0" level and the eye "1" level, makes histograms in the horizontal direction respectively, calculates the time difference between the two histograms, and obtains the eye diagram rise time.
  • the corresponding first measurement values are determined using statistical methods according to the definition.
  • the eye signal-to-noise ratio is the difference between the "1" level and the "0" level divided by the sum of their corresponding standard deviations.
  • the vertical eye opening is the vertical distance between two points on the vertical histogram at the eye delay (EyeDelay), and the eye delay is the time from the middle point to the far origin of the eye diagram.
  • the eye signal-to-noise ratio, Q factor, vertical eye opening, deterministic jitter, horizontal eye opening, random jitter, etc. are calculated using the double Dirac model, taking into account the random and deterministic components.
  • the waveform in the eye diagram corresponding to the first time is an abnormal waveform.
  • different first measurement items in this embodiment correspond to different first predetermined conditions. Users can select one or more measurement items for analysis as needed.
  • the predetermined condition corresponds to the measurement item.
  • the measured value can be eye level.
  • the corresponding predetermined condition can be that the measured value is not greater than a preset threshold or that the measured value is not less than a preset threshold. Preset threshold.
  • the embodiment of the present application performs statistical analysis on the entire signal based on the above multiple measurement items based on the eye diagram of the signal combined with the historical information and current information of the signal, which not only overcomes the low accuracy and poor operation of the eye diagram template analysis when capturing abnormal waveforms.
  • the convenience problem also overcomes the problem that when using the oscilloscope trigger function to capture abnormal waveforms, it can only analyze the characteristics of the current signal based on the current information, resulting in the loss of signal information in the time domain and low accuracy.
  • An embodiment of the present application provides a method for capturing abnormal waveforms by determining the eye diagram formed by the waveform to be detected at the first time; determining the first measurement item corresponding to the eye diagram; and determining the third measurement item based on the eye diagram.
  • a first measurement value corresponding to a measurement item; when the first measurement value does not meet the first predetermined condition, outputting the abnormal waveform corresponding to the first time in the eye diagram can solve the problem of abnormal waveforms in eye diagram template analysis It solves the problems of low accuracy and inconvenient operation during capture. It also avoids the problem of signal information loss in the time domain caused by using the oscilloscope trigger function to capture waveforms, and finally achieves the effect of accurately capturing abnormal waveforms in signals in real time.
  • Figure 2 shows a method for capturing abnormal waveforms provided by an embodiment of the present invention.
  • the method can be executed by an electronic device, and the electronic device can include: a server or a terminal device.
  • the method can be performed by software or hardware installed on the electronic device, and the method includes the following steps:
  • S201 Determine the eye diagram formed by the waveform to be detected at the first time.
  • step S101 or step S102 in the embodiment of FIG. 1 , and the repeated parts will not be described again here.
  • S203 Determine multiple measurement points on the eye diagram corresponding to the first measurement item; obtain the first measurement value based on the multiple measurement points.
  • step S204 there is also a step of: performing a predetermined violation action, wherein the predetermined violation action includes at least one of saving the abnormal waveform and stopping detection.
  • An embodiment of the present invention provides a method for capturing abnormal waveforms by determining the eye diagram formed by the waveform to be detected at the first time; determining the first measurement item corresponding to the eye diagram; and determining the first measurement item corresponding to the eye diagram. Multiple measurement points of a measurement item; based on the plurality of measurement points, obtain the first measurement value; when the first measurement value does not meet the first predetermined condition, output the corresponding third value in the eye diagram
  • a temporary abnormal waveform can solve the problem of low accuracy and inconvenient operation of eye diagram template analysis when capturing abnormal waveforms. It also avoids the problem of loss of signal information in the time domain caused by using the oscilloscope trigger function to capture waveforms. , ultimately achieving the effect of accurately capturing abnormal waveforms in signals in real time.
  • the execution subject may be an abnormal waveform capture device, or a control module used to execute the abnormal waveform capture method in the abnormal waveform capture.
  • the method of performing abnormal waveform capture by the abnormal waveform capture device is used as an example to illustrate the abnormal waveform capture device provided by the embodiment of the present application.
  • Figure 3 shows a schematic structural diagram of an abnormal waveform capturing device provided by an embodiment of the present invention.
  • a device 300 for capturing abnormal waveforms includes: an input module 310, used to determine the eye diagram formed by the waveform to be detected at the first time; a first determination module 320, used to determine the eye diagram corresponding to the eye diagram. a first measurement item; a second determination module 330, configured to determine a first measurement value corresponding to the first measurement item based on the eye diagram; an output module 340, configured to determine when the first measurement value does not satisfy the first measurement value; Under predetermined conditions, the abnormal waveform corresponding to the first time in the eye diagram is output.
  • the input module 310 is configured to: input the waveform to be detected before the first time into a target oscilloscope; adjust the scanning period of the target oscilloscope so that the level of the target oscilloscope is The scanning period is synchronized with the period of the received symbols; the eye diagram is obtained.
  • the second determination module 330 is configured to: determine a plurality of measurement points corresponding to the first measurement item on the eye diagram; based on the plurality of measurement points, obtain the first Measurements.
  • the first measurement item includes: at least one of an amplitude measurement item and a time measurement item.
  • different first measurement items correspond to different first predetermined conditions.
  • the output module is further configured to perform a predetermined violation action, wherein the predetermined violation action includes at least one of saving the abnormal waveform and stopping detection.
  • the abnormal waveform capturing device in the embodiment of the present application may be a device, or may be a component, integrated circuit, or chip in the terminal.
  • the device may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • PDA personal digital assistant
  • non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computers, PC), televisions (television, TV), teller machines or self-service machines, etc., this application The examples are not specifically limited.
  • the abnormal waveform capturing device in the embodiment of the present application may be a device with an operating system.
  • the operating system can be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of this application.
  • the abnormal waveform capture device provided by the embodiment of the present application can implement each process implemented in the method embodiment of Figures 1 to 2. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides an electronic device 400, including a processor 401, a memory 402, and programs or instructions stored on the memory 402 and executable on the processor 401.
  • This program or instruction is implemented when executed by processor 401:
  • the processor 401 when the above-mentioned program or instruction is executed by the processor 401: input the waveform to be detected before the first time into the target oscilloscope; adjust the scan cycle of the target oscilloscope so that the target The horizontal scanning period of the oscilloscope is synchronized with the period of the received symbols; the eye diagram is obtained.
  • the processor 401 when the above-mentioned program or instruction is executed by the processor 401, it is achieved: determining a plurality of measurement points corresponding to the first measurement item on the eye diagram; based on the plurality of measurement points, obtaining the third measurement item. a measured value.
  • the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.
  • FIG. 5 shows a schematic diagram of the hardware structure of another electronic device according to an embodiment of the present application.
  • the electronic device 500 includes, but is not limited to: an input unit 501 for inputting the waveform to be detected, a display unit 502 for displaying the eye diagram corresponding to the waveform to be detected, and a display unit for storing the waveform data to be detected and related measurement data.
  • Storage unit 503, and processing unit 504 for calculation and control and other components.
  • the electronic device 500 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processing unit 504 through a power management system, thereby managing charging, discharging, and function through the power management system. Consumption management and other functions.
  • the processing unit 504 is used to determine the eye diagram formed by the waveform to be detected at the first time; determine the first measurement item corresponding to the eye diagram; based on the eye diagram, determine the first measurement item corresponding to the first measurement item. Measured value; when the first measured value does not meet the first predetermined condition, output the abnormal waveform corresponding to the first time in the eye diagram.
  • the processing unit 504 is configured to input the waveform to be detected before the first time into a target oscilloscope; adjust the scanning period of the target oscilloscope so that the horizontal scanning period of the target oscilloscope is consistent with The cycle of received symbols is synchronized; the eye diagram is obtained.
  • the processing unit 504 is configured to determine a plurality of measurement points on the eye diagram corresponding to the first measurement item; and obtain the first measurement value based on the plurality of measurement points.
  • This embodiment can implement each process of the above-mentioned abnormal waveform capturing method embodiment, and can achieve the same technical effect. To avoid repetition, details will not be described here.
  • the above structure of the electronic device does not constitute a limitation on the electronic device.
  • the electronic device may include more or less components than shown in the figure, or a combination of certain components, or a different arrangement of components, such as an input unit, which may include a graphics processor. (Graphics Processing Unit, GPU) and microphone, the display unit can be configured with a display panel in the form of a liquid crystal display, an organic light-emitting diode, etc.
  • the user input unit includes at least one of a touch panel and other input devices. Touch panels are also called touch screens.
  • Other input devices may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • Storage units can be used to store software programs as well as various data.
  • the storage unit may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • the storage unit may include volatile memory or non-volatile memory, or the storage unit may include both volatile and non-volatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct Rambus RAM (DRRAM).
  • Embodiments of the present application also provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above abnormal waveform capture method embodiment is implemented, and can achieve The same technical effects are not repeated here to avoid repetition.
  • the processor is the processor or processing unit in the electronic device described in the above embodiment.
  • the readable storage media includes computer-readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above embodiment of the abnormal waveform capture method. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-a-chip or system-on-a-chip.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or that contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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Abstract

La présente demande se rapporte au domaine technique du traitement de signal, et concerne un procédé et un appareil de capture de forme d'onde anormale, un dispositif électronique et un support de stockage pour capturer avec précision une forme d'onde anormale dans un signal en temps réel. Le procédé consiste : à déterminer un diagramme en œil formé par une forme d'onde à détecter au premier temps ; à déterminer un premier élément de mesure correspondant au diagramme en œil ; à déterminer, sur la base du diagramme en œil, une première valeur de mesure correspondant au premier élément de mesure ; et à condition que la première valeur de mesure ne soit pas conforme à une première condition prédéfinie, à délivrer une forme d'onde anormale correspondant au premier temps dans le diagramme en œil.
PCT/CN2022/126182 2022-04-01 2022-10-19 Procédé et appareil de capture de forme d'onde anormale, dispositif électronique et support de stockage WO2023184936A1 (fr)

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