Power Adapter Swing Test Method and Equipment

Abstract

This application is applicable to the technical field of adapter testing, and particularly relates to a power adapter swing test method and device. The power adapter swing test method includes: obtaining clamping information; wherein, the clamping information includes the distance information between the clamping position and the load-bearing member and the weight information of the load-bearing member; analyzing according to the clamping information to obtain the swing speed; obtaining the sound information and the corresponding number of swings during swinging at the swing speed in real time; analyzing according to multiple pieces of sound information and the number of swings to obtain the potential fault points and the maximum number of swings of the power adapter. This method not only improves the accuracy of the mechanical durability evaluation of the power adapter, but also provides a scientific basis for predicting and preventing potential faults.

Description

Technical Field

[0001] This application belongs to the technical field of adapter testing, and particularly relates to a power adapter swing test method and device. Background Art

[0002] In modern electronic devices, as one of the key components, the power adapter is responsible for converting the alternating current provided by the power grid into direct current suitable for the device to use. Since the power adapter often needs to withstand physical stresses, such as tensile, bending, and torsional forces generated by cable movement, its durability and reliability are crucial. Especially in some special application scenarios, such as industrial control, medical equipment, and portable electronic devices, higher requirements are put forward for the mechanical stability and long-term use performance of the power adapter.

[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, usually, a load is applied to swing the power cord, and both ends of the power cord are connected to a circuit. When the circuit is disconnected, it indicates that the wire inside the power cord is broken. At this time, the corresponding number of swing times is used to evaluate the durability of the power adapter. However, this method only focuses on one failure mode of the wire break inside the power cord, and the result can only be known after the wire break causes the circuit to be disconnected. At the same time, it does not consider other factors that may affect the durability of the power adapter, such as insulation layer damage. Therefore, the traditional swing test has certain limitations and insufficient test effectiveness. Summary of the Invention

[0004] The embodiments of this application provide a power adapter swing test method and device, which can solve the problems of certain limitations and insufficient effectiveness of the traditional swing test.

[0005] In a first aspect, the embodiments of this application provide a power adapter swing test method, including:

[0006] Obtain clamping information; wherein, the clamping information includes the distance information between the clamping position and the load member, and the weight information of the load member;

[0007] Analyze according to the clamping information to obtain a swing speed; wherein, the swing speed is used to reflect the swing frequency of the swing device;

[0008] Real-time obtain the sound information and the corresponding number of swing times during swinging at the swing speed; wherein, the sound information is used to reflect the sound signal generated by the power adapter during the swing process;

[0009] Analyze based on multiple pieces of the sound information and the number of swings to obtain potential failure points 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.

[0010] In the technical solutions described above in the embodiments of the present application, there are at least the following technical effects:

[0011] The power adapter swing test method provided by the present application obtains clamping information including the distance information between the clamping position and the weight member and the weight information of the weight member; then analyzes according to the clamping information to obtain the swing speed for reflecting the swing frequency of the swing device; then obtains in real time the sound information for reflecting the sound signal generated by the power adapter during swinging at the swing speed and the corresponding number of swings; finally analyzes according to multiple pieces of sound information and the number of swings to obtain potential failure points of the power adapter and the maximum number of swings for reflecting the swing life of the power adapter. This method determines the swing speed based on the clamping information, can make the swing tests of different power adapters closer to the actual test conditions, reduce the interference of human factors, and can effectively identify potential failure points of the power adapter and evaluate its maximum swing life by real-time monitoring of the sound signal generated during swinging and the corresponding number of swings. This method not only improves the accuracy of the mechanical durability evaluation of the power adapter, but also provides a scientific basis for predicting and preventing potential failures.

[0012] In a possible implementation manner of the first aspect, the analyzing according to the clamping information to obtain the swing speed includes:

[0013] Analyze according to the distance information of the clamping information to obtain a preliminary swing speed;

[0014] Analyze according to the weight information of the clamping information and the preliminary swing speed to obtain the swing speed.

[0015] In a possible implementation manner of the first aspect, the analyzing according to the weight information of the clamping information and the preliminary swing speed to obtain the swing speed includes:

[0016] Analyze according to the weight information to obtain a speed correction value;

[0017] Based on the speed correction value, correct the preliminary swing speed to obtain the swing speed.

[0018] In a possible implementation manner of the first aspect, the analyzing according to multiple pieces of the sound information and the number of swings to obtain potential failure points and the maximum number of swings of the power adapter includes:

[0019] Analyze the sound information to obtain the acceleration segment audio and the buffer segment audio; wherein, the acceleration segment audio is used to reflect the audio when the longitudinal displacement of the power adapter during the swinging of the swinging device 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 during the swinging of the swinging device is less than the preset value;

[0020] Analyze based on multiple pieces of the acceleration segment audio, the current buffer segment audio, and the current number of swings to obtain the potential fault points and the maximum number of swings of the power adapter.

[0021] In a possible implementation manner of the first aspect, the analyzing based on multiple pieces of the acceleration segment audio, the current buffer segment audio, and the current number of swings to obtain the potential fault points and the maximum number of swings of the power adapter includes:

[0022] Analyze based on the acceleration segment audio to obtain a first sound feature; wherein, the first sound feature is used to reflect the amplitude of the sound;

[0023] Analyze based on the buffer segment audio to obtain a second sound feature; wherein, the second sound feature is used to reflect the composition of the sound;

[0024] Analyze based on multiple pieces of the first sound feature, the current second sound feature, and the current number of swings to obtain the potential fault points and the maximum number of swings of the power adapter.

[0025] In a possible implementation manner of the first aspect, the analyzing based on multiple pieces of the first sound feature, multiple pieces of the second sound feature, and the number of swings to obtain the potential fault points and the maximum number of swings of the power adapter includes:

[0026] Based on multiple consecutive first sound features, analyze the amplitude change of the first sound feature to obtain the current wear degree;

[0027] Analyze the second sound feature to obtain a wear feature; wherein, the wear feature is used to reflect the worn part of the power adapter;

[0028] Analyze based on the current wear degree, the wear feature, and the number of swings to obtain the potential fault points and the maximum number of swings of the power adapter.

[0029] In a possible implementation manner of the first aspect, the analyzing based on multiple consecutive first sound features, analyzing the amplitude change of the first sound feature to obtain the current wear degree includes:

[0030] Analyze the amplitude change of the first sound feature based on multiple consecutive first sound features to obtain a variation point; wherein, the variation point is used to reflect the time point at which the amplitude change between two adjacent first sound features is greater than a preset amplitude threshold.

[0031] Divide the time series corresponding to the amplitude change of the first sound feature into a first time series and a second time series based on the variation point; 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.

[0032] Analyze based on the first time series and the second time series to obtain the current wear level.

[0033] In a possible implementation manner of the first aspect, the analyzing based on the first time series and the second time series to obtain the current wear level includes:

[0034] Analyze based on the first time series to obtain an average amplitude.

[0035] Analyze based on the average amplitude to obtain an inherent wear level.

[0036] Analyze based on the second time series to obtain a maximum amplitude change rate; wherein, the maximum amplitude change rate is used to reflect the degree of the largest amplitude change in the second time series.

[0037] Obtain the current wear level based on the amplitude change rate and the inherent wear level.

[0038] In a possible implementation manner of the first aspect, the analyzing based on the current wear level, the wear characteristics, and the number of swings to obtain the potential fault point and the maximum number of swings of the power adapter includes:

[0039] Analyze based on the wear characteristics and the current number of swings to obtain a potential fault point.

[0040] Analyze based on the current wear level and the corresponding number of swings to obtain a comprehensive wear index.

[0041] Analyze based on the comprehensive wear index and the number of swings corresponding to the potential fault point to obtain the maximum number of swings.

[0042] In a second aspect, an embodiment of the present application provides a power adapter swing test system, including:

[0043] A first acquisition module, configured to acquire clamping information; wherein, the clamping information includes distance information between the clamping position and the load-bearing member and weight information of the load-bearing member.

[0044] A first analysis module, configured to analyze according to the clamping information to obtain a swing speed; wherein, the swing speed is used to reflect the swing frequency of the swing device.

[0045] A second acquisition module, configured to acquire in real time sound information and corresponding swing times during swinging at the swing speed; wherein, the sound information is used to reflect the sound signal generated by the power adapter during swinging.

[0046] A second analysis module, configured to analyze according to a plurality of the sound information and the swing times to obtain potential fault points and a maximum swing number of the power adapter; wherein, the maximum swing number is used to reflect the swing life of the power adapter.

[0047] In a third aspect, an embodiment of the present application provides a power adapter swing test device, including a swing device and a control device. The control device is electrically connected to the swing device. The control device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method described in any one of the first aspects above is implemented.

[0048] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the method described in any one of the first aspects above is implemented.

[0049] 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 is enabled to execute the power adapter swing test method described in any one of the first aspects above.

[0050] It can be understood that the beneficial effects of the above second aspect to fifth aspect can refer to the relevant descriptions in the first aspect above, and will not be elaborated here. Description of the Drawings

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0052] Figure 1 It is a schematic flowchart of the power adapter swing test method provided by the embodiment of the present application;

[0053] Figure 2 It is a schematic flow chart of the implementation of the power adapter swing test method provided by the embodiments of the present application;

[0054] Figure 3 It is a schematic structural diagram of the power adapter swing test system provided by the embodiments of the present application;

[0055] Figure 4 It is a schematic structural diagram of the control device of the power adapter swing test equipment provided by the embodiments of the present application. Detailed implementation manners

[0056] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system architectures and technologies are presented to provide a thorough understanding of the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can 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 avoid unnecessary details from interfering with the description of the present application.

[0057] It should be understood that when used in the specification of the present application and the appended claims, the term "comprising" indicates the presence of the 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 their combinations.

[0058] It should also be understood that the term "and / or" as used in the specification of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0059] As used in the specification of the present application and the appended claims, the term "if" can be interpreted as "when", "once", "in response to determining", or "in response to detecting" depending on the context. Similarly, the phrase "if determined" or "if the described condition or event is detected" can be interpreted as meaning "once determined", "in response to determining", "once the described condition or event is detected", or "in response to detecting the described condition or event" depending on the context.

[0060] In addition, in the description of the specification of the present application and the appended claims, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0061] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized.

[0062] In modern electronic devices, as one of the key components, the power adapter is responsible for converting the alternating current provided by the power grid into direct current suitable for the device to use. Since the power adapter often needs to withstand physical stresses, such as tensile, bending, and torsional forces generated by cable movement, its durability and reliability are crucial. Especially in some special application scenarios, such as industrial control, medical equipment, and portable electronic devices and other fields, higher requirements are put forward for the mechanical stability and long-term use performance of the power adapter.

[0063] 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, usually, a load is applied to swing the power cord, and both ends of the power cord are connected to the circuit. When the circuit is disconnected, it indicates that the wire inside the power cord is broken. At this time, the corresponding number of swing times is used to evaluate the durability of the power adapter. However, this method only focuses on one failure mode, that is, the wire break inside the power cord, and the result can only be known after the wire break causes the circuit to be disconnected. At the same time, it also fails to consider the influence of other factors such as insulation layer damage on the durability performance of the power adapter. Therefore, the traditional swing test has certain limitations and ineffectiveness.

[0064] To solve the above problems, the embodiments of the present application provide a power adapter swing test method and device. In this method, clamping information including the distance information between the clamping position and the weight member and the weight information of the weight member is obtained; then, the clamping information is analyzed to obtain a swing speed for reflecting the swing frequency of the swing device; then, the sound information for reflecting the sound signal generated by the power adapter during the swing and the corresponding number of swings are obtained in real time at the swing speed; finally, the multiple sound information and the number of swings are analyzed to obtain the potential fault points of the power adapter and the maximum number of swings for reflecting the swing life of the power adapter. This method determines the swing speed based on the clamping information, which can make the swing tests of different power adapters closer to the actual test conditions, reduce the interference of human factors such as arbitrarily mounting the weight member on the power adapter, and effectively identify the potential fault points of the power adapter and evaluate its maximum swing life by real-time monitoring of the sound signal generated during the swing and the corresponding number of swings. This method not only improves the accuracy of the mechanical durability evaluation of the power adapter but also provides a scientific basis for predicting and preventing potential faults.

[0065] The power adapter swing test method provided by the embodiments 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 execution subject of the power adapter swing test method provided by the embodiments of the present application. The embodiments of the present application do not impose any restrictions on the specific type of the power adapter swing test device.

[0066] For example, the 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 perform a swing. The swing device includes at least one clamping mechanism, a driving mechanism, and a weight 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 a firm clamping force for power cords of different diameters. The output end of the driving mechanism is connected to the clamping mechanism and is used to drive the clamping mechanism to perform a swing action. For example, the driving mechanism can be a motor, a hydraulic press, etc., but is not limited thereto. The weight member is detachably connected to the other end of the power adapter and is used to increase an additional load to simulate different load conditions that the power adapter may encounter in actual applications, and the weight of the weight member can be adjusted. For example, the weight member can be a set of weights, a spring-loaded device, etc., but is not limited thereto. The control device monitors and controls the entire swing process.

[0067] 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 large screen, a smart TV, and other terminal devices, a handheld device with wireless communication function, a computing device, or other processing devices 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 set top box (STB), a customer premise equipment (CPE), and / or other devices for communicating on a wireless system, as well as 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), etc.

[0068] To better understand the power adapter swing test method provided by the embodiments of the present application, the following provides an exemplary introduction to the specific implementation process of the power adapter swing test method provided by the embodiments of the present application.

[0069] Figure 1 and Figure 2 FIG. shows a schematic flowchart of the power adapter swing test method provided by the embodiments of the present application. The power adapter swing test method includes:

[0070] S100, obtaining clamping information; wherein, the clamping information includes the distance information between the clamping position and the load-bearing member and the weight information of the load-bearing member.

[0071] It can be understood that the clamping position refers to the position of the end of the clamping mechanism of the swing device close to the load-bearing member when the clamping mechanism clamps the power cord. The distance information between the clamping position and the load-bearing member refers to the minimum distance between the clamping position and the load-bearing member. The distance information can be obtained by analyzing the clamping image captured by the imaging device installed on one side of the swing device 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, etc., but not limited thereto.

[0072] S200, analyzing according to the clamping information to obtain a swing speed; wherein, the swing speed is used to reflect the swing frequency of the swing device.

[0073] It can be understood that after the swinging mechanism of the swinging device holds one end of the power adapter, it will perform a reciprocating swinging motion according to a preset swinging angle, and the time for one reciprocating motion is the swinging frequency. Exemplarily, the pendulum length can be determined by the distance information of the clamping information, an initial swinging speed can be obtained based on the pendulum length and the preset swinging period, and then the initial swinging speed can be adjusted in combination with the weight of the load-bearing member to obtain the final swinging speed; or the clamping information can be input into a learning model, and the learning model outputs the corresponding swinging speed, etc., but 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 swinging speed.

[0074] In a possible implementation manner, in step S200, analyzing according to the clamping information to obtain the swinging speed includes:

[0075] S210, analyzing according to the distance information of the clamping information to obtain a preliminary swinging speed.

[0076] It can be understood that different distances correspond to a preliminary swinging speed. Exemplarily, the preliminary swinging speed can be obtained by inputting the distance information into a swinging database for matching; or the distance information can be input into a learning model, and the learning model outputs the corresponding preliminary swinging speed, etc., but not limited to this. The swinging database refers to a database that contains different distances and the preliminary swinging speeds corresponding to the distances. These data can be obtained through means such as laboratory experiments, on-site measurements and monitoring, and past experience. After obtaining the data, the collected data is sorted, classified, and archived, useful information and rules are extracted, and then the relevant data is saved into the database to form a swinging database.

[0077] S220, analyzing according to the weight information of the clamping information and the preliminary swinging speed to obtain the swinging speed.

[0078] It can be understood that the weight information will affect the magnitude of the stress suffered by the power adapter and its cable during the swinging process. A heavier load may mean greater mechanical stress. Therefore, it is necessary to appropriately adjust the swinging speed to avoid excessive wear or structural damage caused by too fast a speed. The appropriate speed adjustment ratio can be determined through the weight information, and then combined with the preliminary swinging speed for adjustment to obtain the swinging speed; or the weight information and the preliminary swinging speed can be input into a learning model, and the learning model then outputs the corresponding swinging speed, etc., but not limited to this.

[0079] With such a setting, determining the final swinging speed through the distance information and the weight information can optimize the test conditions of the power adapter, thereby improving the scientificity and rationality of the test process.

[0080] In a possible implementation, in step S220, an analysis is performed based on the weight information and the preliminary swing speed of the clamping information to obtain the swing speed, including:

[0081] S221, perform an analysis based on the weight information to obtain a speed correction value.

[0082] It can be understood that different weight information corresponds to a speed correction value. Exemplarily, 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 intervals in the weight interval group to obtain the corresponding speed correction value; alternatively, the weight information can be input into a learning model, and the learning model then outputs the corresponding speed correction value, etc., but not limited to this. The speed correction value can be negative or positive.

[0083] S222, correct the preliminary swing speed based on the speed correction value to obtain the swing speed.

[0084] It can be understood that the swing speed = preliminary swing speed + speed correction value.

[0085] With such a setting, correcting the preliminary swing speed based on the speed correction value can effectively optimize the test parameter settings. At the same time, even when facing different weight or load conditions, the swing speed can be dynamically adjusted, reducing the problems of excessive stress or insufficient testing that may be caused by a single fixed speed or weight, thereby improving the scientific nature, accuracy, and efficiency of the test process, and also providing strong support for improving product quality.

[0086] S300, obtain the sound information and the corresponding number of swings in real time 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.

[0087] It can be understood that the acquisition target of the sound information is the power cord of the power adapter, and the sound information of the clamping position where the clamping mechanism of the swinging device clamps the power adapter is acquired. Exemplarily, multiple high-sensitivity microphones, acoustic sensors, and other sound acquisition devices can be set near the clamping mechanism to acquire the sound information, 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 swinging mechanism. Whenever the swinging mechanism completes a full round-trip movement, the encoder will generate a certain number of pulse signals, and the number of swings can be obtained by reading the number of these pulses and converting them; alternatively, a pair of photoelectric switches can be installed on the center line of the swinging path, and when the swinging arm passes through these switches, a signal change will be triggered, and each trigger can be counted as one time, etc., but not limited to this.

[0088] The S400 analyzes based on multiple sound information and the number of swings to obtain potential fault points and the maximum number of swings of the power adapter; among them, the maximum number of swings is used to reflect the swing life of the power adapter.

[0089] It can be understood that the potential fault point refers to the position or structure of the power adapter that is prone to failure or wear during use, or the service life of its position and structure is lower than expected. Exemplarily, the degree and location of wear can be judged by further analyzing the sound information, such as the amplitude or intensity reflected by the sound, and at the same time, the worn part or structure can be evaluated in combination with the current number of swings, so as to obtain the potential fault point and the maximum number of swings; it can also input multiple sound information and the number of swings into a learning model, and the learning model outputs the corresponding potential fault point and the maximum number of swings, etc., but not limited to this.

[0090] In a possible implementation manner, in step S400, analyzing based on multiple sound information and the number of swings to obtain the potential fault point and the maximum number of swings of the power adapter includes:

[0091] S410 analyzes the sound information to obtain an acceleration segment audio and a buffer segment audio; among them, the acceleration segment audio is used to reflect the audio when the longitudinal displacement of the power adapter during the swing of the swinging device 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 during the swing of the swinging device is less than the preset value.

[0092] 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 one swing cycle of the power adapter, the larger the swing angle, the larger the longitudinal displacement, and the smaller the swing angle, the smaller the longitudinal displacement. The preset value is a pre-set value. By analyzing the preset value, the corresponding swing angle can be obtained, that is, when the swing angle is less than the swing angle corresponding to the preset value, it is the buffer segment, and when the swing angle is greater than the swing angle corresponding to the preset value, it is the acceleration segment. The preset value is a pre-set value, which can be manually input by humans, or obtained from a swing database, etc., but not limited to this. When the detected longitudinal displacement exceeds the preset value, the sound in the current time period is marked as the acceleration segment audio; otherwise, it is marked as the buffer segment audio.

[0093] S420 analyzes based on multiple acceleration segment audios, the current buffer segment audio, and the current number of swings to obtain the potential fault point and the maximum number of swings of the power adapter.

[0094] It can be understood that multiple acceleration-segment audio includes a set of acceleration-segment audio within multiple consecutive periods. Exemplarily, by analyzing the acceleration-segment audio and the buffer-segment audio, the corresponding amplitude or sound components can be obtained. Then, the wear condition can be analyzed through the analysis of the amplitude changes in multiple consecutive periods. Next, the potential fault points can be analyzed through the sound components and the corresponding number of swings, and the maximum number of swings can be analyzed based on the potential fault points, the wear condition, and the current number of swings. Alternatively, multiple acceleration-segment audio, the current buffer-segment audio, and the current number of swings can be input into a learning model, and the learning model outputs the corresponding potential fault points and the maximum number of swings.

[0095] With such a setting, by dividing the sound information into acceleration-segment audio and deceleration-segment audio, which respectively reflect the conditions of the power adapter under higher stress conditions and lower stress conditions, and then analyzing the potential fault points and the maximum number of swings through multiple acceleration-segment audio, the current buffer-segment audio, and the current number of swings, the analysis process becomes more refined, enabling detailed monitoring and evaluation of the performance of the power adapter under different motion states, thereby improving the recognition accuracy of potential fault points and providing a scientific basis for determining the maximum number of swings.

[0096] In a possible implementation manner, in step S420, analyzing based on multiple acceleration-segment audio, the current buffer-segment audio, and the current number of swings to obtain the potential fault points and the maximum number of swings of the power adapter includes:

[0097] S421, analyzing based on the acceleration-segment audio to obtain a first sound feature; wherein, the first sound feature is used to reflect the amplitude of the sound.

[0098] It can be understood that the first sound feature includes the amplitudes of multiple different sounds. The amplitude of each sound can be obtained by performing a spectral analysis on the acceleration-segment audio.

[0099] S422, analyzing based on the buffer-segment audio to obtain a second sound feature; wherein, the second sound feature is used to reflect the components of the sound.

[0100] It can be understood that the components of the sound refer to the types of sounds emitted by the power adapter. By converting the audio signal in the time domain into a frequency domain signal, the energy distribution can be obtained, and then the components can be identified. After screening all the components and removing the inherent components, the second sound feature can be obtained. 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 being conducted to the power adapter during operation, and so on.

[0101] S423. Analyze based on multiple first sound characteristics, the current second sound characteristic, and the current number of swings to obtain potential fault points and the maximum number of swings of the power adapter.

[0102] It can be understood that the change in amplitude can be obtained through the analysis of multiple sound characteristics to judge the wear condition. Through the components of the second sound characteristic, the worn part or structure can be obtained. Based on the worn part and the current number of swings, potential fault points can be obtained, and then the maximum number of swings can be further analyzed and evaluated through the degree of wear and potential fault points. Or multiple first sound characteristics, the current second sound characteristic, and the current number of swings can be input into a learning model, and the learning model then outputs the corresponding potential fault points and the maximum number of swings, etc., but not limited to this.

[0103] With such a setting, this method improves the accuracy and reliability of the test, enabling problems that may affect the product life and performance to be detected at an early stage. In this way, the design or manufacturing process can be adjusted in a timely manner to reduce the occurrence of faults in future use.

[0104] In a possible implementation manner, in step S423, analyzing based on multiple first sound characteristics, the current second sound characteristic, and the current number of swings to obtain potential fault points and the maximum number of swings of the power adapter includes:

[0105] S4231. Analyze the amplitude change of the first sound characteristic based on multiple consecutive first sound characteristics to obtain the current degree of wear.

[0106] It can be understood that the current degree of wear refers to the wear condition of the power adapter in the current swing test. Exemplarily, by analyzing the amplitude change of multiple consecutive first sound characteristics, the time point of the amplitude change degree can be obtained. Through this time point, multiple first sound characteristics are divided into two time intervals, and then analyzed through these two time intervals to obtain the current degree of wear. Or by inputting consecutive first sound characteristics into a learning model, the learning model outputs the corresponding current degree of wear, etc., but not limited to this.

[0107] In a possible implementation manner, in step S4231, analyzing the amplitude change of the first sound characteristic based on multiple consecutive first sound characteristics to obtain the current degree of wear includes:

[0108] S42311. Analyze the amplitude change of the first sound characteristic based on multiple consecutive first sound characteristics to obtain a mutation point; wherein, the mutation point is used to reflect the time point when the amplitude change between two adjacent first sound characteristics is greater than a preset amplitude threshold.

[0109] It can be understood that the preset amplitude threshold is a preset amplitude change value, which can be manually input by a person, or obtained from a swing database, etc., but not limited to this. The amplitude difference can be calculated for each pair of adjacent amplitudes in sequence, 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 mutation point.

[0110] S42312, based on the mutation point, divide the time series corresponding to the amplitude change of the first sound feature into a first time series and a second time series; wherein, the first time series is used to reflect the amplitude change before the mutation point, and the second time series is used to reflect the amplitude change after the mutation point.

[0111] 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 not undergone significant wear or defects, and the second time series can reflect the sound data after the power adapter has undergone significant wear or defects.

[0112] S42313, analyze according to the first time series and the second time series to obtain the current wear degree.

[0113] Exemplarily, the average amplitude of the first time series can be obtained by analyzing the first time series. Through the average amplitude, the wear degree of the power adapter when the number of swings increases but there is no obvious wear can be obtained. Then, analyze according to the second time series to obtain the amplitude change of the power adapter after obvious wear or defects, and then comprehensively obtain the current wear degree; or the first time series and the second time series can be input into a learning model, and the learning model outputs the corresponding current wear degree.

[0114] With such a setting, this method can not only be used for single tests, but also for long-term monitoring, helping to track the performance degradation of the device over time. By comparing the data in different periods, future wear trends can be predicted, maintenance plans can be optimized, and the product service life can be extended.

[0115] In a possible implementation manner, in step S42313, analyzing according to the first time series and the second time series to obtain the current wear degree includes:

[0116] S423131, analyze according to the first time series to obtain the average amplitude.

[0117] It can be understood that the physical meaning of the average amplitude characterizes the reference vibration energy level when the power adapter has not undergone significant wear. The average amplitude can be calculated by the sliding window weighted average algorithm. The window length is aligned with the first time series, that is, the weight values are proportionally divided according to the length of the sliding window from the starting point to the ending point, and finally the average amplitude is obtained by weighting the amplitude at each time point and the corresponding weight values.

[0118] S423132, analyze according to the average amplitude to obtain the inherent wear degree.

[0119] It can be understood that the inherent wear degree refers to the degree of inevitable gradual wear of the power adapter during the swing test as the number of swings increases. 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 not limited to this.

[0120] S423133, analyze according to the second time series to obtain the maximum amplitude change rate; wherein, the maximum amplitude change rate is used to reflect the degree of the largest amplitude change in the second time series.

[0121] 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 mutated after significant wear or defects occur.

[0122] S423134, obtain the current wear degree based on the amplitude change rate and the inherent wear degree.

[0123] It can be understood that the fusion algorithm of the current wear degree adopts a dynamic weighting strategy: the proportion of the inherent wear degree increases linearly with the device usage time, and the weight of the maximum amplitude change rate 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.

[0124] With such settings, by separating the normal wear baseline (the first time series) of the power adapter from the abnormal damage characteristics (the second time series), a dual evaluation mechanism for the wear degree is realized. 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 requirements of progressive aging and prominent wear. The time window dynamic adjustment mechanism ensures that the evaluation results adapt to different working conditions.

[0125] S4232, analyze the second sound feature to obtain the wear feature; wherein, the wear feature is used to reflect the worn part of the power adapter.

[0126] It can be understood that different mechanical problems will generate unique acoustic fingerprints. For example, wear and breakage of the inner core of the power cord, wear of the insulation layer, etc. will all leave specific traces in the acoustic signal. By matching the components reflected by the second sound characteristics, the worn parts can be obtained.

[0127] S4233. Analyze based on the current wear degree, wear characteristics, and number of swings to obtain the potential fault points and the maximum number of swings of the power adapter.

[0128] Exemplarily, the potential fault points can be obtained by the specific worn parts 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 points combined with the current wear degree; or the current wear degree, wear characteristics, and number of swings can be input into a learning model, and the learning model outputs the corresponding potential fault points and the maximum number of swings, etc., but not limited to this.

[0129] With such a setting, combining the current wear degree, wear characteristics, and number of swings for comprehensive analysis can provide a more accurate life prediction for the power adapter. Understanding the number of swings the device has experienced and combining its current state can help estimate the remaining safe operation times, and at the same time can also indicate which parts are most likely to fail. It also improves the efficiency and accuracy of testing, promotes the transformation from reactive maintenance to predictive maintenance, and reduces unnecessary maintenance costs.

[0130] In a possible implementation manner, in step S4233, analyzing based on the current wear degree, wear characteristics, and number of swings to obtain the potential fault points and the maximum number of swings of the power adapter includes:

[0131] S42331. Analyze based on the wear characteristics and the current number of swings to obtain the potential fault points.

[0132] It can be understood that by the parts with obvious wear and the corresponding number of swings, the probability of wear occurrence or the timing of wear occurrence 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 parts corresponding to the wear characteristics are marked as potential fault points.

[0133] S42332. Analyze based on the current wear degree and the corresponding number of swings to obtain a comprehensive wear index.

[0134] It can be understood that the comprehensive wear index is a multi-dimensional evaluation index for the wear degree of the power adapter in terms of the number of uses, usage time, and usage conditions. Exemplarily, the relationship between the current wear degree and the corresponding number of swings and the comprehensive wear index can be analyzed through a multiple regression analysis method to construct a function model, and then the current wear degree and the number of swings are substituted into the function model to obtain the comprehensive wear index; alternatively, a preset wear index can be given respectively according to the values of the wear degree and the number of swings, and then a comprehensive wear index can be obtained by weighted summation according to the weight division, etc., but not limited thereto.

[0135] S42333, analyze according to the comprehensive wear index and the number of swings corresponding to the potential failure point to obtain the maximum number of swings.

[0136] It can be understood that the maximum number of swings = the number of swings + the comprehensive wear index × the number of swings.

[0137] With such a setting, by analyzing the wear characteristics and the current number of swings to determine the potential failure point, this method can accurately identify the problem areas that may occur during the use of the power adapter. This helps to discover in advance the key parts that may lead to failure, so as to take preventive measures or improve the design to extend the service life of the product and improve its reliability; analyzing the comprehensive wear index based on the current wear degree and the corresponding number of swings, this approach provides a quantitative evaluation tool, enabling the wear conditions under different conditions to be objectively compared. It not only considers the physical wear amount but also combines the usage frequency (i.e., the number of swings), providing data support for subsequent risk assessment. This technical solution effectively combines experimental testing and data analysis, achieving an in-depth understanding and precise control of the durability of the power adapter, which is not only beneficial to the improvement of product quality but also provides a scientific basis for predicting and preventing potential failures.

[0138] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0139] Corresponding to the power adapter swing test method described in the above embodiments, the embodiments of the present application also provide a power adapter swing test system, and each module of this system can implement each step of the power adapter swing test method. Figure 3 The structural block diagram of the power adapter swing test system provided by the embodiments of the present application is shown. For the sake of convenience of description, only the parts related to the embodiments of the present application are shown.

[0140] Refer to Figure 3 , this power adapter swing test system includes:

[0141] The first acquisition module is used to acquire clamping information; wherein, the clamping information includes the distance information between the clamping position and the load-bearing member and the weight information of the load-bearing member.

[0142] The first analysis module is used to analyze according to the clamping information to obtain the swing speed; wherein, the swing speed is used to reflect the swing frequency of the swing device.

[0143] The second acquisition module is used to 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.

[0144] The second analysis module is used to analyze according to multiple sound information and the number of swings to obtain the potential fault points 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.

[0145] It should be noted that the information interaction, execution process, etc. between the above modules, due to being based on the same concept as the method embodiment of the present application, for their specific functions and the technical effects brought, please refer to the method embodiment part for details, and will not be elaborated here.

[0146] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the above-mentioned division of each module is used for illustration. In practical applications, the above functions can be allocated to different modules according to needs, that is, the internal structure of the system is divided into different modules to complete all or part of the functions described above. Each module in the embodiment can be integrated in a processing unit, or each module can exist physically alone, or two or more modules can be integrated in one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each module are only for the convenience of mutual distinction and do not limit the protection scope of the present application. The specific working process of the modules in the above system can refer to the corresponding process in the foregoing method embodiment and will not be elaborated here.

[0147] The embodiment of the present application also provides a power adapter swing test device, including a swing device and a control device, and the control device is electrically connected to the swing device. Figure 4 It is a schematic structural diagram of the control device 6 provided by an embodiment of the present application. As Figure 4 shown, the control device 6 of this embodiment includes: at least one processor 60 ( Figure 4 only one is shown in the figure), at least one memory 61 ( Figure 4(only one is shown in the figure) 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 embodiments of the power adapter swing test method, or the control device 6 implements the functions of each module in the above system embodiment.

[0148] Exemplarily, the computer program 62 may be divided into one or more modules / units, and the one or more modules / units 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 performing specific functions, and these instruction segments are used to describe the execution process of the computer program 62 in the control device 6.

[0149] The control device 6 may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The power adapter swing test device may include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art can understand that Figure 4 merely examples of the control device 6, which do not constitute a limitation on the control device 6. It may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, it may also include input / output devices, network access devices, buses, etc.

[0150] The processor 60 may be a central processing unit (CPU), and the processor 60 may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0151] The memory 61 may be an internal storage unit of the control device 6 in some embodiments, such as the hard disk or memory of the control device 6. The memory 61 may also be an external storage device of the control device 6 in other embodiments, 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 the internal storage unit and the external storage device of the control device 6. The memory 61 is used to store an operating system, application programs, a 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 will be output.

[0152] An embodiment of the present application also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0153] An embodiment of the present application provides a computer program product, and 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 method embodiments.

[0154] 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, to implement all or part of the processes in the above method embodiments of the present application, a computer program can be used to instruct relevant hardware to complete. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps in the above method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can at least include: any entity or device capable of carrying the computer program code to the power adapter swing test device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk, or an optical disc, etc.

[0155] In the above embodiments, the descriptions of the various embodiments have their own focuses. For parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0156] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0157] In the embodiments provided in this application, it should be understood that the disclosed power adapter swing test equipment and system can be implemented in other ways. For example, the power adapter swing test system embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of devices or modules can be in electrical, mechanical or other forms.

[0158] The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they can be located in one place, or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0159] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included in the protection scope of this 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 at which 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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