Power adapter swing test method and equipment

Abstract

The invention is suitable for the technical field of adapter testing, and particularly relates to a power adapter swing test method and equipment, and the method comprises the steps: obtaining clamping information; wherein the clamping information comprises distance information between the clamping position and the load bearing part and weight information of the load bearing part; analyzing according to the clamping information to obtain a swinging speed; acquiring sound information and corresponding swinging times during swinging at the swinging speed in real time; and performing analysis according to the multiple pieces of sound information and the number of swinging times to obtain a potential fault point and the maximum number of swinging times of the power adapter. The method not only improves the accuracy of evaluating the mechanical durability of the power adapter, but also provides a scientific basis for predicting and preventing potential faults.

Description

Technical Field

[0001] The present application belongs to the field of adapter testing technology, and in particular, relates to a power adapter swing testing method and device. Background Art

[0002] In modern electronic devices, power adapters are one of the key components responsible for converting the AC power provided by the power grid into DC power suitable for the device. Since power adapters often need to withstand physical stress, such as stretching, bending, and twisting caused by cable movement, their durability and reliability are crucial. Especially in some special applications, such as industrial control, medical equipment, and portable electronic devices, higher requirements are placed on the mechanical stability and long-term performance of power adapters.

[0003] In the related art, the power adapter swing test mainly tests the durability of the power cord of the power adapter through a swing test device. During the test, the power cord is usually swung under a load and the two ends of the power cord are connected to a circuit. When the circuit is disconnected, it means that the internal wires of the power cord are broken. At this time, the corresponding number of swings is used to evaluate the durability of the power adapter. However, this method only focuses on the failure mode of the internal wire breakage of the power cord. The result can only be known after the circuit is disconnected due to the wire breakage. At the same time, it also fails to consider the impact of other factors such as insulation damage on the durability of the power adapter. Therefore, the traditional swing test has certain limitations and the test effectiveness is insufficient. Summary of the invention

[0004] The embodiments of the present application provide a power adapter swing test method and device, which can solve the problem that traditional swing tests have certain limitations and insufficient effectiveness.

[0005] In a first aspect, an embodiment of the present application provides a power adapter swing test method, comprising: Obtaining clamping information; wherein the clamping information includes distance information between the clamping point and the weight-bearing piece, and weight information of the weight-bearing piece; Analyzing the clamping information to obtain a swing speed; wherein the swing speed is used to reflect the swing frequency of the swing device; Acquire in real time the sound information and the corresponding number of swings when swinging at the swing speed; wherein the sound information is used to reflect the sound signal generated by the power adapter during the swinging process; According to the analysis of the multiple sound information and the swing times, the potential failure point and the maximum swing times of the power adapter are obtained; wherein the maximum swing times is used to reflect the swing life of the power adapter.

[0006] The above technical solutions in the embodiments of the present application have at least the following technical effects: The power adapter swing test method provided by the present application obtains clamping information including distance information between the clamping point and the load-bearing piece and weight information of the load-bearing piece; then analyzes the clamping information to obtain a swing speed for reflecting the swing frequency of the swing device; then obtains in real time the sound information and the corresponding number of swings for reflecting the sound signal generated by the power adapter during the swinging process when swinging at the swinging speed; finally, analyzes the multiple sound information and the number of swings to obtain the potential failure point of the power adapter and the maximum number of swings for reflecting the swing life of the power adapter. The method determines the swing speed by clamping information, which can make the swing test of different power adapters closer to the actual test conditions and reduce the interference of human factors. By real-time monitoring of the sound signal generated during the swinging process and the corresponding number of swings, the potential failure point of the power adapter can be effectively identified and its maximum swing life can be evaluated. This method not only improves the accuracy of the evaluation of the mechanical durability of the power adapter, but also provides a scientific basis for predicting and preventing potential failures.

[0007] In a possible implementation manner of the first aspect, analyzing according to the clamping information to obtain the swing speed includes: Analyze the distance information of the clamping information to obtain a preliminary swing speed; The swing speed is obtained by analyzing the weight information of the clamping information and the preliminary swing speed.

[0008] In a possible implementation manner of the first aspect, analyzing the weight information and the preliminary swing speed according to the clamping information to obtain the swing speed includes: Analyze the weight information to obtain a speed correction value; The preliminary sway speed is corrected based on the speed correction value to obtain a sway speed.

[0009] In a possible implementation manner of the first aspect, the analyzing according to the plurality of sound information and the number of swings to obtain the potential failure point and the maximum number of swings of the power adapter includes: The sound information is analyzed to obtain an acceleration segment audio and a buffer segment audio; wherein the acceleration segment audio is used to reflect the audio when the longitudinal displacement of the power adapter when the swing device is swinging is greater than a preset value, and the buffer segment audio is used to reflect the audio when the longitudinal displacement of the power adapter when the swing device is swinging is less than the preset value; The potential failure point and the maximum swinging number of the power adapter are obtained by analyzing the multiple acceleration segment audios, the current buffer segment audio and the current swinging number.

[0010] In a possible implementation of the first aspect, the analyzing according to the plurality of acceleration segment audios, the current buffer segment audios, and the current number of swings to obtain the potential failure point and the maximum number of swings of the power adapter includes: Analyze the accelerated audio to obtain a first sound feature, wherein the first sound feature is used to reflect the amplitude of the sound; Analyze the buffered audio to obtain a second sound feature, wherein the second sound feature is used to reflect the components of the sound; According to the analysis of the plurality of the first sound features, the current second sound feature and the current number of swings, the potential failure point and the maximum number of swings of the power adapter are obtained.

[0011] In a possible implementation manner of the first aspect, the analyzing according to the plurality of first sound features, the plurality of second sound features, and the number of swings to obtain the potential failure point and the maximum number of swings of the power adapter includes: Based on a plurality of continuous first sound features, analyzing the amplitude change of the first sound feature to obtain a current wear degree; Analyze the second sound feature to obtain a wear feature; wherein the wear feature is used to reflect the wear location of the power adapter; An analysis is performed based on the current wear degree, the wear characteristics and the number of swings to obtain a potential failure point and a maximum number of swings of the power adapter.

[0012] In a possible implementation manner of the first aspect, the analyzing, based on a plurality of continuous first sound features, the amplitude change of the first sound feature to obtain the current wear degree includes: Based on a plurality of continuous first sound features, analyzing the amplitude change of the first sound feature to obtain a variation point; wherein the variation point is used to reflect the time point when the amplitude change of two adjacent first sound features is greater than a preset amplitude threshold; Based on the variation point, the time series corresponding to the amplitude change of the first sound feature is divided into a first time series and a second time series; wherein the first time series is used to reflect the amplitude change before the variation point, and the second time series is used to reflect the amplitude change after the variation point; The current wear degree is obtained by analyzing the first time series and the second time series.

[0013] In a possible implementation manner of the first aspect, analyzing according to the first time series and the second time series to obtain the current wear degree includes: Analyze the first time series to obtain an average amplitude; Analyze according to the average amplitude to obtain the inherent wear degree; Analyze the second time series to obtain a maximum amplitude change rate; wherein the maximum amplitude change rate is used to reflect the maximum degree of amplitude change in the second time series; A current wear degree is obtained based on the amplitude change rate and the inherent wear degree.

[0014] In a possible implementation manner of the first aspect, the analyzing according to the current wear degree, the wear characteristic, and the number of swings to obtain the potential failure point and the maximum number of swings of the power adapter includes: Analyze the wear characteristics and the current number of swings to obtain potential failure points; Analyze the current wear degree and the corresponding swing times to obtain a comprehensive wear index; An analysis is performed based on the comprehensive wear index and the number of swings corresponding to the potential failure point to obtain a maximum number of swings.

[0015] In a second aspect, an embodiment of the present application provides a power adapter swing test system, comprising: A first acquisition module is used to acquire clamping information; wherein the clamping information includes distance information between the clamping position and the load-bearing piece and weight information of the load-bearing piece; A first analysis module is used to analyze the clamping information to obtain a swing speed; wherein the swing speed is used to reflect the swing frequency of the swing device; A second acquisition module is used to acquire in real time the sound information and the corresponding number of swings when the power adapter is swinging at the swing speed; wherein the sound information is used to reflect the sound signal generated by the power adapter during the swinging process; The second analysis module is used to analyze the multiple sound information and the swing times to obtain the potential failure point and the maximum swing times of the power adapter; wherein the maximum swing times is used to reflect the swing life of the power adapter.

[0016] In the third aspect, an embodiment of the present application provides a power adapter swing test device, comprising a swing device and a control device, wherein the control device is electrically connected to the swing device, and the control device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the methods described in the first aspect when executing the computer program.

[0017] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described in any one of the above-mentioned first aspects is implemented.

[0018] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product runs on a power adapter swing test device, the power adapter swing test device executes the power adapter swing test method described in any one of the first aspects above.

[0019] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a flowchart of a power adapter swing test method provided in an embodiment of the present application; Figure 2 It is a schematic diagram of the implementation flow of the power adapter swing test method provided in an embodiment of the present application; Figure 3 is a structural schematic diagram of a power adapter swing test system provided in an embodiment of the present application; Figure 4 It is a structural schematic diagram of a control device of a power adapter swing test device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0023] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0024] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0025] As used in the specification of this application and the appended claims, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting" depending on the context. Similarly, the phrase "if it is determined" or "if the described condition or event is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce the described condition or event is detected" or "in response to detecting the described condition or event" depending on the context.

[0026] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0027] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0028] In modern electronic devices, power adapters are one of the key components responsible for converting the AC power provided by the power grid into DC power suitable for the device. Since power adapters often need to withstand physical stress, such as stretching, bending, and twisting caused by cable movement, their durability and reliability are crucial. Especially in some special applications, such as industrial control, medical equipment, and portable electronic devices, higher requirements are placed on the mechanical stability and long-term performance of power adapters.

[0029] In the related art, the power adapter swing test mainly tests the durability of the power cord of the power adapter through a swing test device. During the test, the power cord is usually swung under a load and the two ends of the power cord are connected to a circuit. When the circuit is disconnected, it means that the internal wires of the power cord are broken. At this time, the corresponding number of swings is used to evaluate the durability of the power adapter. However, this method only focuses on the failure mode of the internal wire breakage of the power cord. The result can only be known after the circuit is disconnected due to the wire breakage. At the same time, it also fails to consider the impact of other factors such as insulation damage on the durability of the power adapter. Therefore, the traditional swing test has certain limitations and effectiveness.

[0030] To solve the above problems, the embodiment of the present application provides a power adapter swing test method and device. In the method, by obtaining the clamping information including the distance information between the clamping position and the load-bearing piece and the weight information of the load-bearing piece; then analyzing according to the clamping information, obtaining the swing speed used to reflect the swing frequency of the swing device; then obtaining in real time the sound information and the corresponding number of swings used to reflect the sound signal generated by the power adapter during the swinging process when swinging at the swinging speed; finally analyzing according to multiple sound information and the number of swings, obtaining the potential failure point of the power adapter and the maximum number of swings used to reflect the swing life of the power adapter. The method determines the swing speed by clamping information, which can make the swing test of different power adapters closer to the actual test conditions, reduce the interference of human factors such as arbitrarily mounting the load-bearing piece on the power adapter, and effectively identify the potential failure point of the power adapter and evaluate its maximum swing life by real-time monitoring of the sound signal and the corresponding number of swings generated during the swinging process. This method not only improves the accuracy of the evaluation of the mechanical durability of the power adapter, but also provides a scientific basis for predicting and preventing potential failures.

[0031] The power adapter swing test method provided in the embodiment of the present application can be applied to a power adapter swing test device. At this time, the power adapter swing test device is the executor of the power adapter swing test method provided in the embodiment of the present application. The embodiment of the present application does not impose any restrictions on the specific type of the power adapter swing test device.

[0032] For example, a power adapter swing test device may include a swing device and a control device, and the control device is electrically connected to the swing device. The swing device is used to clamp the power adapter and swing it. The swing device includes at least one clamping mechanism, a driving mechanism and a weight-bearing member. Among them, the clamping mechanism is used to clamp one end of the power adapter. For example, the clamping mechanism can adopt a design similar to pliers, and the opening size can be adjusted by a knob or a screw to ensure that a stable clamping force is provided for power cords of different diameters. The output end of the driving mechanism is connected to the clamping mechanism to drive the clamping mechanism to swing. For example, the driving mechanism can be a motor, a hydraulic press, etc., but not limited to this. The weight-bearing member is detachably connected to the other end of the power adapter to add additional loads to simulate different load conditions that the power adapter may encounter in actual applications, and the weight-bearing member can adjust the weight. For example, the weight-bearing member can be a weight set, a spring loading device, etc., but not limited to this. The control device monitors and controls the entire swinging process.

[0033] For example, the control device can be a mobile phone, a tablet computer, a wearable device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), a desktop computer, a smart screen, a smart TV and other terminal devices, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, an Internet of Things terminal, a computer, a laptop computer, a handheld communication device, a handheld computing device, a satellite wireless device, a wireless modem card, a TV set top box (STB), a customer premises equipment (CPE) and / or other devices for communicating on a wireless system and a next-generation communication system, for example, a mobile terminal in a 5G network or a mobile terminal in a future evolved public land mobile network (PLMN).

[0034] In order to better understand the power adapter swing test method provided in the embodiment of the present application, the specific implementation process of the power adapter swing test method provided in the embodiment of the present application is exemplarily introduced below.

[0035] Figure 1 and Figure 2 A schematic flow chart of a power adapter swing test method provided in an embodiment of the present application is shown. The power adapter swing test method includes: S100, obtaining clamping information; wherein the clamping information includes distance information between the clamping point and the load-bearing piece and weight information of the load-bearing piece.

[0036] It can be understood that the clamping point refers to the position of the clamping mechanism close to one end of the load-bearing member when the clamping mechanism of the swing device clamps the power cord. The distance information between the clamping point and the load-bearing member refers to the minimum distance between the clamping point and the load-bearing member. The distance information can be obtained by obtaining the clamping image through an imaging device installed on one side of the swing device and analyzing it using image processing technology; the weight information can also be obtained by obtaining the image of the load-bearing member and analyzing the size of the load-bearing member to obtain the weight of the load-bearing member; the distance information and weight information can also be manually input by humans, etc., but are not limited to this.

[0037] S200, analyzing the clamping information to obtain a swing speed; wherein the swing speed is used to reflect the swing frequency of the swing device.

[0038] It can be understood that after the swing mechanism of the swing device clamps one end of the power adapter, it will swing back and forth according to the preset swing angle, and the time for one reciprocating motion is the swing frequency. For example, the pendulum length can be determined by the distance information of the clamping information, and an initial swing speed can be obtained according to the pendulum length and the preset swing period, and then the initial swing speed can be adjusted in combination with the weight of the load-bearing piece to obtain the final swing speed; the clamping information can also be input into the learning model, and the learning model outputs the corresponding swing speed, etc., but is not limited to this. The learning model is trained with multiple sets of training data, and each set of training data in the multiple sets of training data includes clamping information and swing speed.

[0039] In a possible implementation, in step S200, analyzing the clamping information to obtain the swing speed includes: S210, analyzing the distance information of the clamping information to obtain a preliminary swing speed.

[0040] It can be understood that different distances correspond to a preliminary swing speed. Exemplarily, the preliminary swing speed can be obtained by inputting the distance information into the swing database for matching; the distance information can also be input into the learning model, and the learning model outputs the corresponding preliminary swing speed, etc., but is not limited thereto. The swing database refers to a database containing different distances and the preliminary swing speeds corresponding to the distances. These data can be obtained through laboratory experiments, on-site measurements and monitoring, and past experience. After obtaining, the collected data is sorted, classified and archived, useful information and rules are extracted, and the relevant data is saved in the database to form a swing database.

[0041] S220, analyzing the weight information of the clamping information and the preliminary swing speed to obtain the swing speed.

[0042] It is understandable that weight information will affect the amount of stress applied to the power adapter and its cable during the swinging process. A heavier load may mean greater mechanical stress, so the swinging speed needs to be adjusted appropriately to avoid excessive wear or structural damage caused by too fast a speed. The appropriate speed adjustment ratio can be determined using the weight information, and then adjusted in combination with the preliminary swinging speed to obtain the swinging speed. The weight information and the preliminary swinging speed can also be input into a learning model, which then outputs the corresponding swinging speed, and so on, but is not limited to this.

[0043] With such a setting, the final swing speed is determined by distance information and weight information, which can optimize the test conditions of the power adapter, thereby improving the scientificity and rationality of the test process.

[0044] In a possible implementation, in step S220, the weight information of the clamping information and the preliminary swing speed are analyzed to obtain the swing speed, including: S221, analyzing the weight information to obtain a speed correction value.

[0045] It can be understood that different weight information corresponds to a speed correction value. For example, a weight interval group can be preset, the weight interval group includes multiple weight intervals, each weight interval corresponds to a speed correction value, and the weight information is matched with the weight interval in the weight interval group to obtain the corresponding speed correction value; or the weight information can be input into a learning model, and the learning model outputs the corresponding speed correction value, etc., but it is not limited thereto. The speed correction value can be a negative number or a positive number.

[0046] S222, correcting the preliminary sway speed based on the speed correction value to obtain the sway speed.

[0047] It can be understood that the swing speed = preliminary swing speed + speed correction value.

[0048] In this way, the initial swing speed is corrected based on the speed correction value, which can effectively optimize the test parameter settings. At the same time, even when facing different weights or load conditions, the swing speed can be dynamically adjusted, reducing the problem of excessive stress or insufficient testing that may be caused by a single fixed speed or weight, thereby improving the scientificity, accuracy and efficiency of the test process, and also providing strong support for the improvement of product quality.

[0049] S300, obtaining in real time the sound information and the corresponding number of swings at the swing speed; wherein the sound information is used to reflect the sound signal generated by the power adapter during the swinging process.

[0050] It can be understood that the target of acquiring the sound information is the power cord of the power adapter, and the sound information of the clamping mechanism of the swing device clamped at the clamping point of the power adapter is acquired. Exemplarily, the sound information can be acquired by setting a plurality of high-sensitivity microphones, acoustic sensors and other sound acquisition devices near the clamping mechanism, and then the acquired sound information is transmitted to the control device. The number of swings can be obtained by installing a rotary encoder on the rotating shaft of the swing mechanism. Whenever the swing mechanism completes a complete round-trip motion, the encoder will generate a certain number of pulse signals, and the number of these pulses can be read and converted into the number of swings; or a pair of photoelectric switches can be installed on the center line of the swing path. When the swing arm passes through these switches, a signal change will be triggered, and each trigger can be counted as one time, and so on, but not limited to this.

[0051] S400, analyzing the multiple sound information and the number of swings to obtain the potential failure point and the maximum number of swings of the power adapter; wherein the maximum number of swings is used to reflect the swing life of the power adapter.

[0052] It can be understood that a potential failure point refers to a position or structure of the power adapter that is prone to failure or wear during use, or a position and structure whose service life is lower than expected. For example, the sound information can be further analyzed to judge the degree of wear and the location of wear through information such as the amplitude or intensity reflected by the sound, and the worn location or structure can be evaluated in combination with the current number of swings to obtain potential failure points and maximum number of swings; multiple sound information and swing times can also be input into a learning model, and the learning model outputs the corresponding potential failure points and maximum number of swings, etc., but is not limited to this.

[0053] In a possible implementation, in step S400, the potential failure point and the maximum number of swings of the power adapter are obtained by analyzing the multiple sound information and the number of swings, including: S410, analyzing the sound information to obtain acceleration segment audio and buffer segment audio; wherein the acceleration segment audio is used to reflect the audio when the longitudinal displacement of the power adapter when the swing device is swinging is greater than a preset value, and the buffer segment audio is used to reflect the audio when the longitudinal displacement of the power adapter when the swing device is swinging is less than a preset value.

[0054] It can be understood that the longitudinal displacement refers to the displacement of the power adapter in the vertical direction perpendicular to the horizontal direction per unit time. In a swing cycle of the power adapter, the greater the swing angle, the greater the longitudinal displacement, and the smaller the swing angle, the smaller the longitudinal displacement. The preset value is a pre-set value, and the corresponding swing angle can be obtained through the preset value analysis, that is, when the swing angle is less than the swing angle corresponding to the preset value, it is a buffer segment, and when the swing angle is greater than the swing angle corresponding to the preset value, it is an acceleration segment. The preset value is a pre-set value, which can be manually input or obtained from the swing database, etc., but is not limited to this. When the detected longitudinal displacement exceeds the preset value, the sound of the current time period is marked as the acceleration segment audio; otherwise, it is marked as the buffer segment audio.

[0055] S420, analyzing the multiple acceleration segment audios, the current buffer segment audios and the current number of swings to obtain potential failure points and a maximum number of swings of the power adapter.

[0056] It can be understood that the multiple acceleration segment audios include a collection of acceleration segment audios within multiple continuous cycles. For example, the corresponding amplitude or sound components can be obtained by analyzing the acceleration segment audio and the buffer segment audio, and then the wear condition can be analyzed through multiple continuous amplitude changes, and then the potential fault point can be obtained through the sound component and the corresponding swing number analysis, and the maximum swing number can be analyzed based on the potential fault point, wear condition and the current swing number; multiple acceleration segment audios, the current buffer segment audio and the current swing number can also be input into the learning model, and the learning model outputs the corresponding potential fault point and the maximum swing number.

[0057] With such a setting, by dividing the sound information into acceleration segment audio and deceleration segment audio, the conditions of the power adapter under higher stress conditions and under lower stress conditions are respectively reflected, and then the potential fault point and the maximum swing number are obtained by analyzing multiple acceleration segment audios, the current buffer segment audio and the current swing number, making the analysis process more refined, and being able to perform detailed monitoring and evaluation on the performance of the power adapter under different motion states, thereby improving the accuracy of identifying potential fault points and providing a scientific basis for determining the maximum swing number.

[0058] In a possible implementation, in step S420, the potential failure point and the maximum swing number of the power adapter are obtained by analyzing the multiple acceleration segment audios, the current buffer segment audios and the current swing number, including: S421, analyzing the accelerated audio to obtain a first sound feature, wherein the first sound feature is used to reflect the amplitude of the sound.

[0059] It is understandable that the first sound feature includes the amplitudes of a plurality of different sounds. The amplitude of each sound can be obtained by performing spectrum analysis on the accelerated segment audio.

[0060] S422, analyzing the buffered audio segment to obtain a second sound feature, wherein the second sound feature is used to reflect the components of the sound.

[0061] It can be understood that the components of the sound refer to the types of sounds emitted by the power adapter. The energy distribution can be obtained by converting the audio signal in the time domain into a frequency domain signal, and then the components can be identified. All components are then screened and the inherent components are removed to obtain the second sound feature. The inherent components refer to the types of sounds that the power adapter will definitely emit during the swing test, such as the sound of the power adapter rubbing against the surrounding air when moving, the sound of the vibration of the swing device during operation transmitted to the power adapter, and so on.

[0062] S423, analyzing according to the multiple first sound features, the current second sound features and the current number of swings to obtain a potential failure point and a maximum number of swings of the power adapter.

[0063] It can be understood that the change in amplitude can be obtained through analysis of multiple sound features to determine the wear condition, and the worn location or structure can be obtained through the component of the second sound feature. The potential fault point can be obtained based on the worn location and the current number of swings, and the maximum number of swings can be further analyzed and evaluated based on the degree of wear and the potential fault point. Multiple first sound features, the current second sound features and the current number of swings can also be input into the learning model, and the learning model then outputs the corresponding potential fault points and maximum number of swings, etc., but is not limited to this.

[0064] Thus configured, the method improves the accuracy and reliability of testing, enabling problems that could affect product life and performance to be detected at an early stage. In this way, design or manufacturing processes can be adjusted in a timely manner to reduce future failures.

[0065] In a possible implementation, in step S423, analyzing the multiple first sound features, the current second sound features, and the current number of swings to obtain the potential failure point and the maximum number of swings of the power adapter includes: S4231, based on multiple continuous first sound features, analyze the amplitude change of the first sound feature to obtain the current wear degree.

[0066] It can be understood that the current wear degree refers to the wear condition of the power adapter in the current swing test. For example, the amplitude change of multiple continuous first sound features can be analyzed to obtain the time point of the amplitude change degree, and the multiple first sound features can be divided into two time intervals through the time point, and then the current wear degree can be obtained through analysis of these two time intervals; or the continuous first sound features can be input into the learning model, and the learning model outputs the corresponding current wear degree, etc., but not limited to this.

[0067] In a possible implementation, in step S4231, based on a plurality of continuous first sound features, the amplitude change of the first sound feature is analyzed to obtain the current wear degree, including: S42311, based on multiple continuous first sound features, analyze the amplitude change of the first sound features to obtain a variation point; wherein the variation point is used to reflect the time point when the amplitude change of two adjacent first sound features is greater than a preset amplitude threshold.

[0068] It can be understood that the preset amplitude threshold is a preset amplitude change value, which can be manually input or obtained from a swing database, etc., but is not limited thereto. The amplitude difference can be calculated for each pair of adjacent amplitudes in turn, and each amplitude difference is compared with the preset amplitude threshold. When the amplitude difference is greater than the preset amplitude threshold, it is marked, and the time corresponding to the mark is determined as the variation point.

[0069] S42312, based on the variation point, the time series corresponding to the amplitude change of the first sound feature is divided into a first time series and a second time series; wherein the first time series is used to reflect the amplitude change before the variation point, and the second time series is used to reflect the amplitude change after the variation point.

[0070] It can be understood that the number of swings corresponding to the first time series is less than the number of swings corresponding to the second time series. The first time series can reflect the sound data when the power adapter has no significant wear or defects, and the second time series can reflect the sound data after the power adapter has significant wear or defects.

[0071] S42313, analyzing the first time series and the second time series to obtain the current wear degree.

[0072] Exemplarily, the first time series can be analyzed to obtain the average amplitude of the first time series, and the degree of wear of the power adapter when the number of swings increases but no obvious wear occurs can be obtained through the average amplitude. Then, analysis can be performed based on the second time series to obtain the amplitude change of the power adapter after obvious wear or defects occur, and then the current degree of wear can be comprehensively obtained. The first time series and the second time series can also be input into a learning model, and the learning model outputs the corresponding current degree of wear.

[0073] In this way, the method can be used not only for a single test, but also for long-term monitoring, helping to track the performance degradation of equipment over time. By comparing data from different periods, future wear trends can be predicted, maintenance plans can be optimized, and product life can be extended.

[0074] In a possible implementation, in step S42313, analyzing the first time series and the second time series to obtain the current wear degree includes: S423131, analyze according to the first time series to obtain an average amplitude.

[0075] It can be understood that the physical meaning of the average amplitude represents the baseline vibration energy level when the power adapter is not significantly worn. The average amplitude can be calculated by a sliding window weighted average algorithm, where the window length is aligned with the first time series, that is, the weight value is proportionally divided by the length of the sliding window from the starting point to the end point, and finally the average amplitude is obtained by weighting the amplitude at each time point and the corresponding weight value.

[0076] S423132, analyze based on the average amplitude to obtain the inherent wear degree.

[0077] It can be understood that the inherent wear degree refers to the degree of wear that inevitably occurs gradually as the number of swings increases during the swing test of the power adapter. Different average amplitudes reflected by different types of power adapters correspond to an inherent wear degree. Exemplarily, the average amplitude can be matched in the swing database to obtain the corresponding inherent wear degree, or the average amplitude can be input into the learning model, and the learning model outputs the corresponding inherent wear degree, etc., but is not limited to this.

[0078] S423133, analyzing the second time series to obtain a maximum amplitude change rate; wherein the maximum amplitude change rate is used to reflect the maximum degree of amplitude change in the second time series.

[0079] It can be understood that the maximum amplitude change rate refers to the extreme value of the ratio of the difference between the amplitude values ​​corresponding to two adjacent time points in the second time series, which reflects how much the vibration characteristics of the power adapter have changed after significant wear or defects occur.

[0080] S423134, obtaining the current wear degree based on the amplitude change rate and the inherent wear degree.

[0081] It can be understood that the current wear degree fusion algorithm adopts a dynamic weighting strategy: the inherent wear degree ratio increases linearly with the equipment usage time, and the maximum amplitude change rate weight is automatically increased when a mutation event is detected. Finally, the exponential smoothing method is used to balance the superposition effect of long-term slow wear and short-term severe damage, and a 0-1 standardized wear coefficient is output.

[0082] This setting realizes a dual evaluation mechanism of wear degree by separating the normal wear baseline (first time series) of the power adapter and the abnormal damage characteristics (second time series). The inherent wear degree quantifies the long-term cumulative loss, and the maximum amplitude change rate captures sudden damage events. The dynamic fusion model of the two takes into account the detection needs of progressive aging and prominent wear. The dynamic adjustment mechanism of the time window ensures that the evaluation results are adapted to different working conditions.

[0083] S4232, analyzing the second sound feature to obtain a wear feature; wherein the wear feature is used to reflect the wear location of the power adapter.

[0084] It is understandable that different mechanical problems will produce unique acoustic fingerprints. For example, wear and breakage of the inner core of the power cord and wear of the insulation layer will leave specific traces in the acoustic signal. By matching the components reflected by the second sound feature, the location of the wear can be obtained.

[0085] S4233, analyzing according to the current wear degree, wear characteristics and swing times, to obtain a potential failure point and a maximum swing times of the power adapter.

[0086] Exemplarily, the potential fault point can be obtained through the specific location of the wear and the corresponding number of swings when the wear occurs, and then the maximum number of swings can be further evaluated and analyzed based on the potential fault point and the current degree of wear; the current degree of wear, wear characteristics and number of swings can also be input into the learning model, and the learning model outputs the corresponding potential fault point and maximum number of swings, etc., but is not limited to this.

[0087] This setup combines the current wear level, wear characteristics and the number of swings for comprehensive analysis, which can provide a more accurate life prediction for the power adapter. Knowing the number of swings the device has experienced, combined with its current state, can help estimate the remaining safe operation times, and also indicate which parts are most prone to failure. It also improves the efficiency and accuracy of the test, promotes the transition from reactive maintenance to predictive maintenance, and reduces unnecessary maintenance costs.

[0088] In a possible implementation, in step S4233, the potential failure point and the maximum swing number of the power adapter are obtained by analyzing the current wear degree, wear characteristics and swing number, including: S42331, analyze the wear characteristics and the current number of swings to obtain potential failure points.

[0089] It can be understood that by comparing the parts with obvious wear and the corresponding number of swings, the probability of wear or the timing of wear can be calculated. By judging the probability or timing, for example, setting a threshold, when the probability is greater than the threshold, or the time is less than the threshold, the part corresponding to the wear feature is marked as a potential fault point.

[0090] S42332, analyzing the current wear degree and the corresponding number of swings to obtain a comprehensive wear index.

[0091] It can be understood that the comprehensive wear index is a multi-dimensional evaluation index for the degree of wear of the power adapter in terms of the number of uses, usage time, and usage conditions. For example, the relationship between the current degree of wear and the corresponding number of swings and the comprehensive wear index can be analyzed by a multivariate regression analysis method, a function model can be constructed, and then the current degree of wear and the number of swings can be substituted into the function model to obtain the comprehensive wear index; or a preset wear index can be given according to the values ​​of the degree of wear and the number of swings, and then a comprehensive wear index can be obtained by weighted division and weighted summation, etc., but not limited to this.

[0092] S42333, analyzing the number of swings corresponding to the comprehensive wear index and the potential failure point to obtain the maximum number of swings.

[0093] It can be understood that the maximum number of swings = number of swings + comprehensive wear index × number of swings.

[0094] In this way, potential failure points are determined by analyzing the wear characteristics and the current number of swings. This method can accurately identify problem areas that may occur during the use of the power adapter. This helps to discover key parts that may cause failure in advance, so that preventive measures or design improvements can be taken to extend the service life of the product and improve its reliability; the comprehensive wear index is obtained based on the current wear level and the corresponding number of swings. This approach provides a quantitative evaluation tool that enables the wear conditions under different conditions to be objectively compared. It not only takes into account the physical amount of wear, but also combines the frequency of use (i.e., the number of swings) to provide data support for subsequent risk assessments. This technical solution effectively combines experimental testing with data analysis to achieve an in-depth understanding and precise control of the durability of the power adapter, which is not only conducive to improving product quality, but also provides a scientific basis for predicting and preventing potential failures.

[0095] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0096] Corresponding to the power adapter swing test method described in the above embodiment, the embodiment of the present application also provides a power adapter swing test system, and each module of the system can implement each step of the power adapter swing test method. Figure 3 A structural block diagram of a power adapter swing test system provided in an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0097] Reference Figure 3 , the power adapter swing test system includes: The first acquisition module is used to acquire clamping information; wherein the clamping information includes distance information between the clamping point and the weight-bearing piece and weight information of the weight-bearing piece.

[0098] The first analysis module is used to analyze the clamping information to obtain the swing speed; wherein the swing speed is used to reflect the swing frequency of the swing device.

[0099] The second acquisition module is used to acquire the sound information and the corresponding number of swings at the swing speed in real time; wherein the sound information is used to reflect the sound signal generated by the power adapter during the swinging process.

[0100] The second analysis module is used to analyze the multiple sound information and the number of swings to obtain the potential failure point and the maximum number of swings of the power adapter; wherein the maximum number of swings is used to reflect the swing life of the power adapter.

[0101] It should be noted that the information interaction, execution process and other contents between the above-mentioned modules are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0102] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above modules is used as an example for illustration. In practical applications, the above functions can be assigned to different modules as needed, that is, the internal structure of the system can be divided into different modules to complete all or part of the functions described above. The modules in the embodiment can be integrated into a processing unit, or each module can exist physically alone, or two or more modules can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the modules are only for the convenience of distinguishing from each other, and are not used to limit the scope of protection of this application. The specific working process of the modules in the above system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0103] An embodiment of the present application also provides a power adapter swing test device, including a swing device and a control device, wherein the control device is electrically connected to the swing device. Figure 4 This is a schematic diagram of the structure of a control device 6 provided in an embodiment of the present application. Figure 4 As shown, the control device 6 of this embodiment includes: at least one processor 60 ( Figure 4 Only one is shown), at least one memory 61 ( Figure 4 Only one is shown) and a computer program 62 stored in the at least one memory 61 and executable on the at least one processor 60. When the processor 60 executes the computer program 62, the control device 6 implements the steps in any of the above-mentioned power adapter swing test method embodiments, or implements the functions of the modules in the above-mentioned system embodiments.

[0104] Exemplarily, the computer program 62 may be divided into one or more modules / units, which are stored in the memory 61 and executed by the processor 60 to complete the present application. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program 62 in the control device 6.

[0105] The control device 6 can be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The power adapter swing test device can include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art can understand that Figure 4 It is only an example of the control device 6 and does not constitute a limitation on the control device 6. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, buses, etc.

[0106] The processor 60 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0107] In some embodiments, the memory 61 may be an internal storage unit of the control device 6, such as a hard disk or memory of the control device 6. In other embodiments, the memory 61 may also be an external storage device of the control device 6, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the control device 6. Further, the memory 61 may also include both an internal storage unit and an external storage device of the control device 6. The memory 61 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program. The memory 61 may also be used to temporarily store data that has been output or is to be output.

[0108] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0109] An embodiment of the present application provides a computer program product. When the computer program product runs on a power adapter swing test device, the power adapter swing test device implements the steps in any of the above-mentioned method embodiments.

[0110] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the power adapter swing test equipment, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electrical carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a disk or an optical disk.

[0111] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0112] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0113] In the embodiments provided in the present application, it should be understood that the disclosed power adapter swing test device and system can be implemented in other ways. For example, the power adapter swing test system embodiment described above is only schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0114] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0115] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A power adapter swing test method, characterized in that: include: Obtaining clamping information; wherein the clamping information includes distance information between the clamping point and the weight-bearing piece, and weight information of the weight-bearing piece; Analyzing the clamping information to obtain a swing speed; wherein the swing speed is used to reflect the swing frequency of the swing device; Acquire in real time the sound information and the corresponding number of swings when swinging at the swing speed; wherein the sound information is used to reflect the sound signal generated by the power adapter during the swinging process; According to the analysis of the multiple sound information and the swing times, the potential failure point and the maximum swing times of the power adapter are obtained; wherein the maximum swing times is used to reflect the swing life of the power adapter.

2. The power adapter swing test method according to claim 1, characterized in that: The analyzing according to the clamping information to obtain the swing speed includes: Analyze the distance information of the clamping information to obtain a preliminary swing speed; The swing speed is obtained by analyzing the weight information of the clamping information and the preliminary swing speed.

3. The power adapter swing test method according to claim 2, characterized in that: The step of analyzing the weight information of the clamping information and the preliminary swing speed to obtain the swing speed includes: Analyze the weight information to obtain a speed correction value; The preliminary sway speed is corrected based on the speed correction value to obtain a sway speed.

4. The power adapter swing test method according to claim 1, wherein: The step of analyzing the plurality of sound information and the number of swings to obtain the potential failure point and the maximum number of swings of the power adapter includes: The sound information is analyzed to obtain an acceleration segment audio and a buffer segment audio; wherein the acceleration segment audio is used to reflect the audio when the longitudinal displacement of the power adapter when the swing device is swinging is greater than a preset value, and the buffer segment audio is used to reflect the audio when the longitudinal displacement of the power adapter when the swing device is swinging is less than the preset value; The potential failure point and the maximum swinging number of the power adapter are obtained by analyzing the multiple acceleration segment audios, the current buffer segment audio and the current swinging number.

5. The power adapter swing test method according to claim 4, characterized in that: The step of analyzing the plurality of acceleration segment audios, the current buffer segment audios, and the current number of swings to obtain the potential failure point and the maximum number of swings of the power adapter includes: Analyze the accelerated audio to obtain a first sound feature, wherein the first sound feature is used to reflect the amplitude of the sound; Analyze the buffered audio to obtain a second sound feature, wherein the second sound feature is used to reflect the components of the sound; According to the analysis of the plurality of the first sound features, the current second sound feature and the current number of swings, the potential failure point and the maximum number of swings of the power adapter are obtained.

6. The power adapter swing test method according to claim 5, characterized in that: The step of analyzing the plurality of first sound features, the plurality of second sound features, and the number of swings to obtain a potential failure point and a maximum number of swings of the power adapter includes: Based on a plurality of continuous first sound features, analyzing the amplitude change of the first sound feature to obtain a current wear degree; Analyze the second sound feature to obtain a wear feature; wherein the wear feature is used to reflect the wear location of the power adapter; An analysis is performed based on the current wear degree, the wear characteristics and the number of swings to obtain a potential failure point and a maximum number of swings of the power adapter.

7. The power adapter swing test method according to claim 6, characterized in that: The analyzing the amplitude change of the first sound feature based on the plurality of continuous first sound features to obtain the current wear degree includes: Based on a plurality of continuous first sound features, analyzing the amplitude change of the first sound feature to obtain a variation point; wherein the variation point is used to reflect the time point when the amplitude change of two adjacent first sound features is greater than a preset amplitude threshold; Based on the variation point, the time series corresponding to the amplitude change of the first sound feature is divided into a first time series and a second time series; wherein the first time series is used to reflect the amplitude change before the variation point, and the second time series is used to reflect the amplitude change after the variation point; The current wear degree is obtained by analyzing the first time series and the second time series.

8. The power adapter swing test method according to claim 7, characterized in that: The analyzing the first time series and the second time series to obtain the current wear degree includes: Analyze the first time series to obtain an average amplitude; Analyze according to the average amplitude to obtain the inherent wear degree; Analyze the second time series to obtain a maximum amplitude change rate; wherein the maximum amplitude change rate is used to reflect the maximum degree of amplitude change in the second time series; A current wear degree is obtained based on the amplitude change rate and the inherent wear degree.

9. The power adapter swing test method according to claim 6, wherein: The analyzing according to the current wear degree, the wear characteristics and the swing times to obtain the potential failure point and the maximum swing times of the power adapter includes: Analyze the wear characteristics and the current number of swings to obtain potential failure points; Analyze the current wear degree and the corresponding swing times to obtain a comprehensive wear index; An analysis is performed based on the comprehensive wear index and the number of swings corresponding to the potential failure point to obtain a maximum number of swings.

10. A power adapter swing test device, characterized in that: The invention comprises a swing device and a control device, wherein the control device is electrically connected to the swing device, the control device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the method according to any one of claims 1 to 9 when executing the computer program.

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