Jitter evaluation device and method, electronic apparatus, storage medium, and program product

Abstract

The invention discloses a jitter evaluation device and method, electronic equipment, a storage medium and a program product, relates to the technical field of automobiles, and is used for evaluating the jitter level in the door cover closing process. The jitter evaluation device comprises an acceleration sensor and a data processing module. The data processing module is connected with the acceleration sensor; the acceleration sensor is used for acquiring acceleration time domain data of a surface detection point of the door cover in the closing process of the door cover and sending the acceleration time domain data to the data processing module; and the data processing module is used for obtaining jitter evaluation parameters of the door cover based on the acceleration time domain data.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a jitter evaluation device, method, electronic equipment, storage medium and program product. Background Art

[0002] With the development of the automobile industry, users have higher and higher requirements for automobile quality and comfort. Controlling the vibration level when the door cover is closed has become an important design task. For the vibration when the door cover is closed, a complete and comprehensive evaluation standard needs to be established.

[0003] The vehicle vibration evaluation method in the prior art obtains vibration acceleration data in three directions of the vehicle during driving, and calculates the vibration evaluation parameters by combining the vibration weight coefficients in the three directions.

[0004] However, the current vehicle vibration evaluation method mainly focuses on the vibration evaluation of the vehicle under driving conditions, rather than the vibration evaluation during the door cover closing process. Therefore, the prior art lacks a technical solution for performing vibration evaluation during the door cover closing process. Summary of the invention

[0005] The object of the present invention is to provide a jitter evaluation device, method, electronic device, storage medium and program product for evaluating the jitter level during the closing process of a door cover.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme:

[0007] In a first aspect, the present invention provides a jitter evaluation device, including an acceleration sensor and a data processing module; the data processing module is connected to the acceleration sensor; the acceleration sensor is used to obtain acceleration time domain data of surface detection points of a door cover during the closing process of the door cover, and send the acceleration time domain data to the data processing module; the data processing module is configured to obtain jitter evaluation parameters of the door cover based on the acceleration time domain data.

[0008] It can be understood that the jitter evaluation device provided in the embodiment of the present application uses an acceleration sensor to understand the acceleration change when the door cover is closed in real time, obtains acceleration time domain data, and improves the real-time performance and accuracy of the jitter evaluation device. The data processing module obtains the jitter evaluation parameters of the door cover based on the acceleration time domain data, realizes the automation and intelligence of the jitter evaluation, and improves the efficiency and accuracy of the jitter evaluation.

[0009] In some embodiments, the jitter assessment parameter includes a jitter level.

[0010] In some embodiments, the jitter evaluation parameter further includes at least one of the following: door closing speed and impact peak-to-peak value.

[0011] In some embodiments, the data processing module is configured to obtain the jitter evaluation parameters of the door cover based on the acceleration time domain data, including: integrating the acceleration time domain data to obtain the integrated data, the integrated data at least including the displacement time domain data; and determining the jitter level based on the integrated data.

[0012] In some embodiments, the data processing module is configured to determine the jitter level based on the data after integration processing, including: fitting a logarithmic attenuation curve according to the peak point of the displacement time domain data and the time information corresponding to the peak point; and determining the jitter level based on the characteristic parameters of the logarithmic attenuation curve.

[0013] In some embodiments, the characteristic parameter of the logarithmic attenuation curve includes at least one of the following: an amplitude coefficient and an attenuation coefficient.

[0014] In some embodiments, the data processing module is configured to determine the closing speed of the door cover based on the speed time domain data, including: determining the closing time point of the door cover based on the time information corresponding to the acceleration time domain data; obtaining the speed corresponding to the closing time point from the speed time domain data; and determining the closing speed of the door cover based on the speed corresponding to the closing time point.

[0015] In some embodiments, the data processing module includes an integration submodule and a processing submodule; the integration submodule is used to integrate the acceleration time domain data to obtain integrated data; the processing submodule is used to determine the jitter level based on the integrated data.

[0016] In some embodiments, the integration submodule includes at least a first integration submodule and a second integration submodule; the first integration submodule is used to integrate the acceleration time domain data to obtain the velocity time domain data; the second integration submodule is used to integrate the velocity time domain data to obtain the displacement time domain data.

[0017] In some embodiments, the peak-to-peak value of the shock is determined based on the peak value of the acceleration time domain data.

[0018] In some embodiments, the jitter evaluation device further includes: a magnetic base, which is used to adsorb the jitter evaluation device to a surface detection point of the door cover.

[0019] In some embodiments, the jitter evaluation device further includes: a wireless transmission module connected to the data processing module; and a wireless transmission module for transmitting the jitter evaluation parameters of the door cover determined by the data processing module to the terminal device.

[0020] In some embodiments, the jitter evaluation device further includes: a display module connected to the data processing module; the display module is used to display the jitter evaluation parameters of the door cover determined by the data processing module.

[0021] In a second aspect, the present application provides a jitter evaluation method, which is applied to a jitter evaluation device, including: during the door cover closing process, obtaining acceleration time domain data of the surface detection points of the door cover; based on the acceleration time domain data, obtaining the jitter evaluation parameters of the door cover.

[0022] It is understandable that real-time acquisition of acceleration time domain data improves the real-time performance and accuracy of the jitter evaluation method. Based on the acceleration time domain data, the jitter evaluation parameters of the door cover are obtained, which realizes the automation and intelligence of the jitter evaluation method and improves the efficiency and accuracy of the jitter evaluation method.

[0023] In some embodiments, the jitter assessment parameter includes a jitter level.

[0024] In some embodiments, the jitter evaluation parameter further includes at least one of the following: door closing speed and impact peak-to-peak value.

[0025] In some embodiments, based on the acceleration time domain data, the jitter evaluation parameters of the door cover are obtained, including: integrating the acceleration time domain data to obtain integrated data, the integrated data at least including displacement time domain data; and determining the jitter level based on the integrated data.

[0026] In some embodiments, determining the jitter level based on the integrated data includes: fitting a logarithmic attenuation curve based on the peak point of the displacement time domain data and the time information corresponding to the peak point; and determining the jitter level based on the characteristic parameters of the logarithmic attenuation curve.

[0027] In some embodiments, the jitter level is determined based on the characteristic parameters of the logarithmic attenuation curve, including: when the data after integration processing also includes speed time domain data, determining the door cover closing speed based on the speed time domain data; determining the jitter level based on the characteristic parameters of the logarithmic attenuation curve and the door cover closing speed.

[0028] In some embodiments, the characteristic parameter of the logarithmic attenuation curve includes at least one of the following: an amplitude coefficient and an attenuation coefficient.

[0029] In some embodiments, determining the closing speed of the door cover based on the speed time domain data includes: determining the closing time point of the door cover based on the time information corresponding to the acceleration time domain data; obtaining the speed corresponding to the closing time point from the speed time domain data; and determining the closing speed of the door cover based on the speed corresponding to the closing time point.

[0030] In some embodiments, the peak-to-peak value of the shock is determined based on the peak value of the acceleration time domain data.

[0031] In a third aspect, the present application provides a jitter evaluation device, including a communication module and a processing module. The communication module is used to obtain acceleration time domain data of surface detection points of a door cover during the closing process of the door cover; the processing module is used to obtain jitter evaluation parameters of the door cover based on the acceleration time domain data.

[0032] In some embodiments, the jitter assessment parameter includes a jitter level.

[0033] In some embodiments, the jitter evaluation parameter further includes at least one of the following: door closing speed and impact peak-to-peak value.

[0034] In some embodiments, the processing module is specifically used to perform integration processing on the acceleration time domain data to obtain integrated processed data, and the integrated processed data at least includes displacement time domain data; based on the integrated processed data, the jitter level is determined.

[0035] In some embodiments, the processing module is specifically used to fit a logarithmic attenuation curve according to the peak point of the displacement time domain data and the time information corresponding to the peak point; and determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve.

[0036] In some embodiments, the processing module is specifically used to determine the door cover closing speed based on the speed time domain data when the data after integration processing also includes speed time domain data; and determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve and the door cover closing speed.

[0037] In some embodiments, the characteristic parameter of the logarithmic attenuation curve includes at least one of the following: an amplitude coefficient and an attenuation coefficient.

[0038] In some embodiments, the processing module is specifically used to determine the closing time point of the door cover based on the time information corresponding to the acceleration time domain data; obtain the speed corresponding to the closing time point from the speed time domain data; and determine the closing speed of the door cover based on the speed corresponding to the closing time point.

[0039] In some embodiments, the peak-to-peak value of the shock is determined based on the peak value of the acceleration time domain data.

[0040] In a fourth aspect, the present application provides an electronic device, comprising: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the electronic device implements the method of the second aspect above.

[0041] In a fifth aspect, the present application provides a computer-readable storage medium, which includes: computer software instructions; when the computer software instructions are executed in an electronic device, the electronic device implements the method of the second aspect above.

[0042] In a sixth aspect, the present application provides a computer program product, which includes a computer program; when the computer program runs in an electronic device, the electronic device implements the method of the second aspect above.

[0043] The beneficial effects of the third to sixth aspects mentioned above refer to the corresponding description of the first or second aspect and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments 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.

[0045] Figure 1 A diagram of a jitter evaluation device provided for this application;

[0046] Figure 2 Another jitter evaluation device diagram provided for this application;

[0047] Figure 3 A diagram of another jitter evaluation device provided in this application;

[0048] Figure 4 A product schematic diagram of a jitter evaluation device provided in this application;

[0049] Figure 5 A flowchart of a jitter evaluation method provided in this application;

[0050] Figure 6 A schematic diagram of a process for determining jitter evaluation parameters provided in this application;

[0051] Figure 7 A schematic diagram of the composition of a jitter evaluation device provided in this application;

[0052] Figure 8 A schematic diagram of the structure of an electronic device provided in this application.

[0053] Reference numerals:

[0054] Acceleration sensor 100 , data processing module 200 , integration submodule 210 , processing submodule 220 , first integration submodule 211 , second integration submodule 212 , wireless transmission module 400 , display module 500 , protective shell 600 , magnetic base 300 , power module 700 . DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside" and the like indicate directions or positional relationships based on the directions or relative positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Unless otherwise specified, the above-mentioned directional description can be flexibly set in the process of actual application under the condition that the relative positional relationship shown in the accompanying drawings is satisfied.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the embodiments of the present invention, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, article or device including the element.

[0060] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0061] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0062] The jitter evaluation method during the door cover closing process has demonstrated its importance in many key areas, including automobile design and development, quality control process, vehicle performance testing, fault diagnosis analysis, user feedback research, and the development of smart car technology. However, the existing vehicle jitter evaluation system mainly focuses on the jitter evaluation of the vehicle in driving state, but fails to cover the jitter when the door cover is closed. The jitter evaluation of a moving vehicle focuses on the vibration acceleration felt by the human body, which belongs to the category of tactile evaluation; while the door cover closing jitter pays more attention to the vibration displacement of the door cover system during the closing action, which belongs to the field of visual observation. Therefore, the current vehicle jitter evaluation standard cannot effectively evaluate the jitter condition when the door cover is closed.

[0063] In view of the above technical problems, the present application proposes a jitter evaluation device, including an acceleration sensor 100 and a data processing module 200; the data processing module 200 is connected to the acceleration sensor 100. The acceleration sensor 100 obtains the acceleration time domain data of the surface detection points of the door cover in real time during the closing process of the door cover, and sends the acceleration time domain data to the data processing module 200, thereby improving the real-time performance and accuracy of the jitter evaluation device. The data processing module 200 is used to obtain the jitter evaluation parameters of the door cover based on the acceleration time domain data, thereby realizing the automation and intelligence of the jitter evaluation and improving the efficiency and accuracy of the jitter evaluation.

[0064] The jitter evaluation device provided in the embodiment of the present application is introduced below in conjunction with the drawings of the specification.

[0065] See also Figure 1 The embodiment of the present application provides a jitter evaluation device including: an acceleration sensor 100 and a data processing module 200. The data processing module 200 is connected to the acceleration sensor 100.

[0066] Next, the acceleration sensor 100 and the data processing module 200 are described respectively.

[0067] In some embodiments, the acceleration sensor 100 is used to obtain acceleration time-domain data of the surface detection points of the door cover during the closing process of the door cover, and send the acceleration time-domain data to the data processing module 200.

[0068] The surface monitoring points of the door cover may be selected according to actual conditions. For example, when detecting the shaking of the door cover of the target vehicle, the surface monitoring points of the door cover may be the corner positions where the shaking is larger.

[0069] In some embodiments, acceleration time domain data refers to the recording and analysis of the acceleration changes over time during the closing process of the door cover in the time domain (or called time domain analysis). This data is usually collected in real time by sensors and other equipment, and can reflect the dynamic characteristics of the door cover during the closing process.

[0070] Exemplarily, the acceleration time domain data refers to the changing trend of the acceleration of the door cover during the closing process.

[0071] Exemplarily, the acceleration sensor 100 may be a dynamic acceleration sensor 100 , a miniaturized digital acceleration sensor 100 , a high-sensitivity acceleration sensor 100 , or the like.

[0072] Exemplarily, the data processing module 200 is configured to obtain a door cover vibration evaluation parameter based on the acceleration time domain data.

[0073] It can be understood that the jitter evaluation device provided by the present application includes an acceleration sensor 100 and a data processing module 200. The acceleration sensor 100 obtains acceleration time domain data in real time, which improves the real-time performance and accuracy of the evaluation device. The data processing module 200 obtains jitter evaluation parameters, realizes the automation and intelligence of jitter evaluation, and improves the efficiency and accuracy of jitter evaluation.

[0074] In some embodiments, the jitter assessment parameter includes a jitter level.

[0075] Exemplarily, the shake level is used to indicate the degree of shake when the door cover is closed. The specific level can be set according to the actual situation. For example, the shake level of the door cover is divided into: extremely bad, poor, medium, good, and excellent.

[0076] Exemplarily, the jitter level of the door cover is extremely poor, with extremely large jitters. The jitters generated during the closing process are significant, which may cause safety hazards. The jitter level of the door cover is poor, with relatively obvious jitters, which has a greater impact on the user experience. The jitter level of the door cover is medium, and a certain amount of jitter can be detected during the closing process of the door cover, which may slightly affect the user experience. The jitter level of the door cover is good, with slight jitters. The door cover closing process is smooth overall, with only occasional small vibrations. The jitter level of the door cover is excellent, with almost no perceptible jitters, and the door cover is extremely stable during the closing process.

[0077] It can be understood that the jitter level can intuitively display the jitter level of the door cover closing and provide more objective and accurate jitter evaluation parameters.

[0078] In some embodiments, the jitter evaluation parameter further includes at least one of the following: door closing speed and impact peak-to-peak value.

[0079] For example, when comparing the jitter levels between products, products with the same jitter level can use the door cover closing speed and the impact peak-to-peak value as jitter evaluation parameters to evaluate the jitter level when the door cover is closed.

[0080] It can be understood that using the door cover closing speed and the impact peak-to-peak value as jitter evaluation parameters increases the flexibility and comprehensiveness of the jitter evaluation device and takes the jitter evaluation parameters into more comprehensive consideration.

[0081] In some embodiments, the peak-to-peak value of the shock is determined based on the peak value of the acceleration time domain data.

[0082] Exemplarily, the peak value of the acceleration time domain data refers to the acceleration data corresponding to the maximum impact force generated by the door cover on the door frame or the surroundings during the process of the door cover closing.

[0083] It can be understood that the peak-to-peak value of the impact is used to reflect the jitter amplitude of the door cover. Using the peak-to-peak value of the impact as a jitter evaluation parameter improves the accuracy and comprehensiveness of the jitter evaluation and reduces the complexity of the jitter evaluation calculation.

[0084] In some embodiments, Figure 2 As shown, the data processing module 200 may include an integration submodule 210 and a processing submodule 220 .

[0085] Exemplarily, the integration submodule 210 is used to perform integration processing on the acceleration time domain data to obtain integrated data.

[0086] Exemplarily, the integration submodule 210 may be in the form of an integration circuit.

[0087] It should be noted that the integration sub-module 210 may be a hardware integration sub-module 210 or a software integration sub-module 210 .

[0088] Exemplarily, the hardware integrator module 210 is usually composed of operational amplifiers, resistors, capacitors, etc. The specific circuit design is determined by the actual situation and is not limited here.

[0089] Exemplarily, the software integration submodule 210 directly performs integration operation on the acceleration signal in the time domain.

[0090] In some embodiments, Figure 2As shown, the integration submodule 210 includes a first integration submodule 211 and a second integration submodule 212 .

[0091] Exemplarily, the first integration submodule 211 is used to perform integration processing on the acceleration time-domain data to obtain the velocity time-domain data.

[0092] Exemplarily, the second integration submodule 212 is used to perform integration processing on the velocity time-domain data to obtain the displacement time-domain data.

[0093] It can be understood that further dividing the integral submodule 210 makes the function of each module clearer, improves the maintainability of the jitter evaluation, and improves the accuracy of the jitter evaluation.

[0094] In some embodiments, the processing submodule 220 is configured to determine a jitter level based on the integrated processed data.

[0095] It can be understood that the use of the integral submodule 210 to integrate the acceleration time domain data reduces the computational burden of the processing submodule 220 and improves the response speed of the jitter evaluation device. At the same time, the integral submodule 210 can provide smoother and more reliable displacement time domain data, thereby improving the accuracy of jitter evaluation. The jitter evaluation parameters determined by the processing submodule 220 provide quantifiable indicators for product design, which helps promote product improvement to improve product quality.

[0096] In some embodiments, when the jitter evaluation parameters include jitter levels, the data processing module 200 is configured to obtain jitter evaluation parameters of the door cover based on the acceleration time domain data, including: integrating the acceleration time domain data to obtain integrated data, the integrated data at least including displacement time domain data; and determining the jitter level based on the integrated data.

[0097] In some embodiments, the displacement time domain data is a functional relationship of the door cover changing with time during the closing process. In the time domain analysis, the horizontal axis represents time and the vertical axis represents displacement. By drawing a displacement-time curve, the position of the door cover at different time points during the closing process and the changing trend of the position can be intuitively displayed. Displacement is a vector with magnitude and direction. Therefore, in the displacement time domain data, in addition to recording the magnitude of the displacement, the direction of the displacement also needs to be recorded. The direction of the displacement can be determined according to the actual situation and is not limited here.

[0098] It is understandable that the data after the integration processing can more accurately reflect the jitter situation during the door cover closing process. Therefore, determining the jitter level based on the data after the integration processing can improve the accuracy of the jitter evaluation.

[0099] In some embodiments, the data processing module 200 is configured to determine the jitter level based on the data after integration processing, including: fitting a logarithmic attenuation curve according to the peak point of the displacement time domain data and the time information corresponding to the peak point; and determining the jitter level based on the characteristic parameters of the logarithmic attenuation curve.

[0100] Among them, the peak point of the displacement time domain data represents the maximum displacement moment during the door cover closing process.

[0101] In some embodiments, the peak value and its corresponding time information are found from the displacement time domain data, and the peak point of the displacement time domain data and the time information corresponding to the peak point are organized into a data set to facilitate fitting of the logarithmic attenuation curve.

[0102] For example, the data set of the peak point (y) of the displacement time domain data is y={y 1 ,y 2 ,…,y n}, the data set of the time information (t) corresponding to the peak point is t = {t 1 ,t 2 ,…,t n}, where n is the number of peak points of the displacement time domain data.

[0103] Exemplarily, a suitable logarithmic attenuation curve model is selected according to the peak point of the displacement time domain data and the time information corresponding to the peak point. The logarithmic attenuation curve model may satisfy the following formula (1):

[0104] y=Ae -at Formula (1)

[0105] Among them, A is the amplitude coefficient, a is the attenuation coefficient, y is the peak point of the displacement time domain data, t is the time information corresponding to the peak point, and e is the base of the natural logarithm (approximately equal to 2.71828).

[0106] In some embodiments, for a nonlinear model, a nonlinear least square method may be used to determine a set of amplitude coefficients and attenuation coefficients so that the error between the displacement time domain data corresponding to the model and the actual displacement time domain data is minimized.

[0107] Exemplarily, a set of amplitude coefficients and attenuation coefficients determined based on the nonlinear least squares method is introduced into the logarithmic attenuation curve model to obtain the final logarithmic attenuation curve.

[0108] In some embodiments, there is no unique method for fitting the logarithmic attenuation curve, which is not limited here.

[0109] In some embodiments, for the displacement time domain data with noise, filtering processing may be performed first to ensure the accuracy of the peak point of the displacement time domain data.

[0110] Exemplarily, the corresponding filtering processing is selected according to the type of noise, and the devices that can implement the filtering processing operation include: a low-pass filter, which is suitable for removing high-frequency noise and retaining low-frequency signals (for example, the main displacement changes during the closing process of the door cover); a high-pass filter, which is used to remove low-frequency interference signals, especially when there is baseline drift in the signal; a band-pass filter, which removes both excessively high and low frequencies and only retains signals within a specific range; a median filter, which is particularly effective in removing spike noise and maintaining the edge characteristics of the signal.

[0111] Exemplarily, the above filtering operation may be implemented by configuring a filtering algorithm in the processing submodule 220 to implement the filtering processing operation, or by adding a corresponding filtering processor in the processing submodule 220 .

[0112] In some embodiments, the characteristic parameter of the logarithmic attenuation curve includes at least one of the following: an amplitude coefficient and an attenuation coefficient.

[0113] Based on this, the data processing module 200 is configured to determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve, which can be implemented as: determining the jitter level based on the amplitude coefficient and / or the attenuation coefficient.

[0114] The amplitude coefficient is the initial amplitude of the fitted logarithmic attenuation curve, which reflects the maximum displacement of the door cover. If the amplitude coefficient is too large, it may cause excessive jitter when the door cover is closed.

[0115] Exemplarily, the attenuation coefficient represents the attenuation rate of the displacement over time in the logarithmic attenuation curve. If the attenuation coefficient is too small, it may cause the door cover to continue to shake when closing.

[0116] In some embodiments, the jitter level may be determined based on a preset mapping relationship between characteristic parameters of the logarithmic attenuation curve and the jitter evaluation score.

[0117] Exemplarily, the preset mapping relationship may be in the form of a rating curve. Exemplarily, the rating curve may have a built-in database of different vehicle models and different door covers for users to select, and rating curves of newly added vehicle models and newly added door covers may be continuously written through the data platform.

[0118] For example, the rating curve may be set according to industry standards and actual conditions. For example, the rating curve may be set as scores corresponding to different amplitude coefficients; or the rating curve may be set as scores corresponding to different attenuation coefficients.

[0119] In some embodiments, the door cover shake evaluation score can be set to a 10-point system, and the corresponding scores of different amplitude coefficients and / or attenuation coefficients in the rating curve are set to a 10-point system.

[0120] Exemplarily, scores corresponding to different amplitude coefficients and / or attenuation coefficients are obtained according to the rating curve, and corresponding weight values ​​are set for the amplitude coefficients and / or attenuation coefficients respectively, and the door cover jitter evaluation score is determined based on the weight values ​​and the corresponding relationship.

[0121] It should be noted that the setting of the weight value is determined by the actual situation, and the embodiments of the present application do not limit this. For example, assuming that the amplitude coefficient has a greater impact on the jitter evaluation, the amplitude coefficient weight value can be set to 100%, and the attenuation coefficient weight value can be set to 0; assuming that the attenuation coefficient has a greater impact on the jitter evaluation, the attenuation coefficient weight value can be set to 100%, and the amplitude coefficient weight value can be set to 0.

[0122] For example, if the door cover shake evaluation score is 1-2 points, the door cover shake level is extremely poor. If the door cover shake evaluation score is 3-4 points, the door cover shake level is poor. If the door cover shake evaluation score is 5-6 points, the door cover shake level is medium. If the door cover shake evaluation score is 7-8 points, the door cover shake level is good. If the door cover shake evaluation score is 9-10 points, the door cover shake level is excellent.

[0123] It can be understood that by fitting the logarithmic attenuation curve and determining the objective evaluation data, the influence of some subjective factors is reduced, the accuracy of the jitter evaluation device is improved, and the determination of the door cover jitter level more intuitively displays the jitter level of the door cover, which is convenient for users to evaluate the jitter level of the door cover and can also enhance customer trust and satisfaction.

[0124] In some embodiments, the data processing module 200 is configured to determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve, and also includes: when the data after integration processing also includes speed time domain data, determining the door cover closing speed based on the speed time domain data; determining the jitter level based on the characteristic parameters of the logarithmic attenuation curve and the door cover closing speed.

[0125] For example, the speed time domain data is a function of the speed change over time during the door cover closing process. In the time domain analysis, the horizontal axis represents time and the vertical axis represents speed. By drawing a speed-time curve, the speed values ​​at different time points during the door cover closing process and the speed change trend can be intuitively displayed.

[0126] In some embodiments, the jitter level is determined based on characteristic parameters of the logarithmic decay curve, the door cover closing speed and a preset corresponding relationship.

[0127] The preset mapping relationship may be a mapping relationship between a characteristic parameter of a logarithmic attenuation curve and a door closing speed, and a jitter evaluation score.

[0128] In some embodiments, the preset mapping relationship may be represented by a rating curve. Exemplarily, the rating curve may be used to reflect the characteristic parameters of the logarithmic attenuation curve corresponding to different jitter evaluation scores and the value range of the door closing speed.

[0129] In some embodiments, the characteristic parameters of the logarithmic decay curve may include an amplitude coefficient and / or an attenuation coefficient.

[0130] Exemplarily, the rating curve is set according to the amplitude coefficient, the attenuation coefficient and the door cover closing speed. For example, the rating curve can be the evaluation scores corresponding to different amplitude coefficients; or the rating curve is the evaluation scores corresponding to different attenuation coefficients; or the rating curve is the evaluation scores corresponding to different door cover closing speeds.

[0131] Exemplarily, the scores corresponding to different amplitude coefficients, attenuation coefficients and door cover closing speeds are determined based on the rating curve, and the weight values ​​corresponding to the amplitude coefficients, attenuation coefficients and door cover closing speeds are set to determine the final jitter evaluation score.

[0132] In some embodiments, the door cover shake evaluation score can be set to a 10-point system, and the scores corresponding to different amplitude coefficients and / or attenuation coefficients in the rating curve are set to a 10-point system.

[0133] Exemplarily, the jitter level is determined based on the jitter evaluation score.

[0134] It can be understood that a unified jitter evaluation standard can be established through the amplitude coefficient, attenuation coefficient and closing speed, which can reduce the evaluation deviation between different products, improve the versatility of the jitter evaluation device, and determine the evaluation level based on the amplitude coefficient, attenuation coefficient and closing speed. Through clear levels, products can be optimized in a targeted manner, which promotes the development of science and technology.

[0135] In some embodiments, the data processing module 200 is configured to determine the closing speed of the door cover based on the speed time domain data, including: determining the closing time point of the door cover based on the time information corresponding to the acceleration time domain data; obtaining the speed corresponding to the closing time point from the speed time domain data; and determining the closing speed of the door cover based on the speed corresponding to the closing time point.

[0136] In some embodiments, in the process of determining the closing time point of the door cover, a preset time calculated from the impact start time point is selected as the closing time point. The impact start time point is the time point when the acceleration time domain data has a significant mutation during the closing process of the door cover, which is usually caused by the collision between the door cover and the door frame or the action of the locking mechanism. The preset time can be 0.2 seconds, and the establishment of the preset time helps to improve the accuracy of the jitter evaluation device.

[0137] In some embodiments, the impact start time point is a time point at which the difference between the acceleration time domain data at adjacent time points is greater than a preset difference, wherein the preset difference is determined by actual conditions and is not limited here.

[0138] Exemplarily, the speed time domain data corresponding to the closing time point is the speed data corresponding to the surface monitoring point of the door cover, and the closing speed of the door cover is obtained by multiplying the speed data corresponding to the surface monitoring point of the door cover by the locking speed coefficient.

[0139] The locking speed coefficient is the ratio of the projection distance from the door lock position to the hinge to the projection distance from the measuring point position to the hinge.

[0140] For example, assuming that the jitter of a vehicle door is evaluated when it is closed, the projection distance from the door lock position to the hinge refers to the distance from the projection of the door lock (usually the lock position when the door is closed) on a plane perpendicular to the hinge axis to the center of the hinge. This distance reflects the position of the door lock relative to the hinge and is one of the key parameters for evaluating the dynamic performance of the door lock.

[0141] Exemplarily, the projection distance from the measuring point position to the hinge refers to the distance from the projection of the surface monitoring point of the door cover on the plane perpendicular to the hinge axis to the center of the hinge.

[0142] It should be noted that the faster the door closing speed, the greater the impact force generated by the door cover during the closing process may be, thereby increasing the possibility of shaking. The slower the door closing speed, the smoother the movement of the door cover and the shaking may be relatively small.

[0143] It can be understood that, compared with the related art that requires measuring the door closing speed through a sensor, the present application obtains the door closing speed through calculation, thereby avoiding the influence of sensor accuracy and improving the reliability of the jitter evaluation device.

[0144] In some embodiments, the closing speed of the door cover can also be used as a parameter for evaluating the jitter of the door cover.

[0145] It can be understood that by determining the door cover jitter evaluation parameters through the door cover closing speed, the jitter situation during the door cover closing process can be more accurately reflected, the objectivity and consistency of the jitter evaluation can be improved, the influence of subjective factors can be eliminated, and the accuracy of the jitter evaluation can be improved.

[0146] It should be noted that compared with the prior art jitter parameter detection scheme of installing a vibration sensor on the door cover, installing a vibration sensor on the vehicle body, and installing a speed sensor on the door lock to measure the door closing speed, the evaluation device provided by the present application only needs to install an acceleration sensor on the door cover, and can determine the door cover jitter evaluation parameters based on the detected data to achieve door cover jitter evaluation. It not only has a streamlined structure, a simple and fast installation process, but also an extremely convenient operation process.

[0147] In some embodiments, see Figure 3 The jitter evaluation device provided in the present application may further include a magnetic base 300 .

[0148] The magnetic base 300 is used to adsorb the jitter evaluation device to the surface detection point of the door cover.

[0149] In some embodiments, the magnetic base 300 can use magnetic attraction to adsorb the evaluation device to the surface detection point of the door cover.

[0150] Exemplarily, a magnet may be mounted on the door cover, and the magnetic base 300 includes a magnet, and fixation is achieved through the mutual attraction between the magnets.

[0151] In some embodiments, the magnetic base 300 can be attached to the surface detection point of the door cover by gluing the evaluation device.

[0152] Exemplarily, the evaluation device may be attached to the door cover by using a traceless adhesive. The traceless adhesive generally uses a specially designed adhesive that does not leave obvious marks or residues after attachment.

[0153] It can be understood that the magnetic base 300 can use magnetic force to firmly adsorb the jitter evaluation device on the door cover, thereby ensuring the accuracy and stability of the jitter evaluation. At the same time, the design of the magnetic base enables the jitter evaluation device to be quickly and conveniently installed and disassembled, thereby improving the convenience of jitter evaluation.

[0154] In some embodiments, see Figure 3 The jitter evaluation device provided in the present application may further include a wireless transmission module 400 . The wireless transmission module 400 is connected to the data processing module 200 .

[0155] Exemplarily, the wireless transmission module 400 is used to transmit the door cover jitter evaluation parameter determined by the data processing module 200 to the terminal device.

[0156] Exemplarily, the terminal device may be a mobile phone, a tablet computer, a wearable device, an in-vehicle 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), etc.

[0157] It can be understood that, through the wireless transmission module 400, the user can obtain the shaking condition of the door cover in real time through the terminal device without being restricted by geographical location, which increases the versatility of the shaking evaluation and improves the convenience of the shaking evaluation.

[0158] In some embodiments, see Figure 3 The jitter evaluation device provided in the present application may further include a display module 500 . The display module 500 is connected to the data processing module 200 .

[0159] In some embodiments, the display module 500 is used to display the jitter evaluation parameters of the door cover determined by the data processing module 200 .

[0160] It is understandable that the display module displays the jitter evaluation parameters of the door cover to the user in a visual form, which makes it easier for the user to understand the jitter level of the door cover, reduces the user's analysis time, and thus improves the work efficiency of the jitter evaluation.

[0161] In some embodiments, the jitter evaluation device provided in the embodiments of the present application is an integrated portable device that can be movably attached to the door cover that needs to be jitter evaluated. In this way, compared with the method of collecting jitter using an internal clearance measuring instrument adopted in the related art, the jitter evaluation device provided by the present application is not only portable, but also easy to disassemble and use; in addition, the test of the closing speed in the existing test requires a separate set of equipment, and the closing jitter evaluation device achieves the synchronous acquisition of two parameters through a single integrated device, simplifying the requirements for on-site testing.

[0162] See also Figure 4 , is a product schematic diagram of a jitter evaluation device provided in an embodiment of the present application. Figure 4 As shown, the jitter evaluation device provided in the present application includes an acceleration sensor 100 , a data processing module 200 , a wireless transmission module 400 , a display module 500 , a magnetic base 300 , a protective shell 600 and a power module 700 .

[0163] In some embodiments, the acceleration sensor 100 , the data processing module 200 , the wireless transmission module 400 , and the display module 500 are located inside the protective shell 600 , and the magnetic base 300 is located outside the protective shell 600 .

[0164] The data processing module 200 is divided into an integration submodule 210 and a processing submodule 220 .

[0165] Exemplarily, the integration submodule 210 is divided into a first integration submodule 211 and an integration submodule 212 .

[0166] Exemplarily, the magnetic base 300 and the protective shell 600 may be connected by bolts.

[0167] In some embodiments, the power module 700 is connected to the acceleration sensor 100 , the data processing module 200 , the wireless transmission module 400 , and the display module 500 , respectively.

[0168] Exemplarily, the power module 700 supplies power to the jitter evaluation device.

[0169] In some embodiments, Figure 5 As shown, a jitter evaluation method provided by the present application is applied to the above jitter evaluation device, and includes the following steps S201-S202:

[0170] S201. During the closing process of the door cover, the acceleration time domain data of the surface detection points of the door cover are obtained.

[0171] In some embodiments, the acceleration time domain data may be determined based on acceleration data acquired in real time by an acceleration sensor.

[0172] For example, assuming that the vehicle door cover is in the closing process, the surface monitoring point of the door cover may be a corner position on the door cover where the vibration is greater.

[0173] S202: Obtain a door cover vibration evaluation parameter based on the acceleration time domain data.

[0174] In some embodiments, the jitter assessment parameter includes a jitter level.

[0175] Exemplarily, the door cover shaking level is used to indicate the degree of shaking when the door cover is closed. Exemplarily, the door cover shaking level may include: extremely poor, poor, medium, good, and excellent.

[0176] In some embodiments, the jitter evaluation parameters may further include the door closing speed and the impact peak-to-peak value.

[0177] For example, the door cover closing speed is an important parameter in the door cover closing process, which directly affects the dynamic performance and stability of the door cover.

[0178] Exemplarily, the peak-to-peak value of the impact is determined based on the peak value of the acceleration time domain data.

[0179] Exemplarily, the peak value of the acceleration time domain data refers to the acceleration data corresponding to the maximum impact force generated by the door cover on the door frame or the surroundings during the process of the door cover closing.

[0180] It is understandable that real-time acquisition of acceleration time domain data improves the real-time performance and accuracy of the jitter evaluation method. Based on the acceleration time domain data, the jitter evaluation parameters of the door cover are obtained, which realizes the automation and intelligence of the jitter evaluation method and improves the efficiency and accuracy of the jitter evaluation method.

[0181] In some embodiments, the jitter evaluation parameter includes a jitter level, and the above step S202 can be specifically implemented as the following steps S2021-S2022:

[0182] S2021. Integrate the acceleration time domain data to obtain integrated data, where the integrated data at least includes displacement time domain data.

[0183] In some embodiments, the displacement time domain data is a functional relationship of the door cover changing with time during the closing process. In the time domain analysis, the horizontal axis represents time and the vertical axis represents displacement. By drawing a displacement-time curve, the position of the door cover at different time points during the closing process and the changing trend of the position can be intuitively displayed. Displacement is a vector with magnitude and direction. Therefore, in the displacement time domain data, in addition to recording the magnitude of the displacement, the direction of the displacement also needs to be recorded. The direction of the displacement can be determined according to the actual situation and is not limited here.

[0184] S2022: Determine the jitter level based on the integrated data.

[0185] In some embodiments, a rating curve of the corresponding relationship between the displacement time domain data and the jitter evaluation score may be set, and the jitter level may be determined based on the rating curve.

[0186] In some embodiments, the above step S2022 can be implemented as the following steps Sa1-Sa2:

[0187] Sa1. Fit a logarithmic attenuation curve based on the peak point of the displacement time domain data and the time information corresponding to the peak point.

[0188] Exemplarily, there are many methods for fitting the logarithmic decay curve, which are not limited here.

[0189] Sa2. Determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve.

[0190] In some embodiments, the characteristic parameter of the logarithmic attenuation curve includes at least one of the following: an amplitude coefficient and an attenuation coefficient.

[0191] For example, the amplitude coefficient represents the maximum vibration amplitude of the displacement time domain data during the closing process of the door cover. The larger the amplitude coefficient, the worse the jitter performance of the door cover when closing.

[0192] For example, the attenuation coefficient indicates the speed of vibration attenuation during the closing process of the door cover. The larger the attenuation coefficient, the faster the vibration attenuation and the better the stability when the door cover is closed. If the vibration can be quickly attenuated to a lower level, the jitter performance of the door cover will be better.

[0193] In some embodiments, the jitter level may be determined based on a preset mapping relationship between characteristic parameters of the logarithmic attenuation curve and the jitter evaluation score.

[0194] Exemplarily, the preset mapping relationship may be in the form of a rating curve. Exemplarily, the rating curve may have a built-in database of different vehicle models and different door covers for users to select, and rating curves of newly added vehicle models and newly added door covers may be continuously written through the data platform.

[0195] For example, the rating curve may be set according to industry standards and actual conditions. For example, the rating curve may be set to the rating scores corresponding to different amplitude coefficients; or the rating curve may be set to the rating scores corresponding to different attenuation coefficients.

[0196] In some embodiments, the door cover shake evaluation score can be set to a 10-point system, and the corresponding scores of different amplitude coefficients and / or attenuation coefficients in the rating curve are set to a 10-point system.

[0197] Exemplarily, evaluation scores corresponding to different amplitude coefficients and / or attenuation coefficients are obtained according to the rating curve, and corresponding weight values ​​are set for the amplitude coefficients and / or attenuation coefficients respectively, and the door cover jitter evaluation score is determined based on the weight values ​​and the corresponding relationship.

[0198] In some embodiments, the weight value and the rating curve are determined by actual conditions and are not limited here.

[0199] In some embodiments, the above step Sa2 may also be implemented as follows:

[0200] Step 1: When the data after the integration process also includes speed time domain data, determine the door cover closing speed based on the speed time domain data.

[0201] Exemplarily, the integrated data is obtained by integrating the acceleration time domain data by an integration submodule.

[0202] In some embodiments, the integration submodule may be in the form of an integration circuit.

[0203] For example, the speed time domain data is a function of the speed change over time during the door cover closing process. In the time domain analysis, the horizontal axis represents time and the vertical axis represents speed. By drawing a speed-time curve, the speed values ​​at different time points during the door cover closing process and the speed change trend can be intuitively displayed.

[0204] In some embodiments, the closing speed of the door cover may be determined by referring to the following steps b1 to b3.

[0205] Step 2: Determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve and the door cover closing speed.

[0206] Exemplarily, the rating curve is set according to the amplitude coefficient, the attenuation coefficient and the door cover closing speed. For example, the rating curve can be the evaluation scores corresponding to different amplitude coefficients; or the rating curve is the evaluation scores corresponding to different attenuation coefficients; or the rating curve is the evaluation scores corresponding to different door cover closing speeds.

[0207] Exemplarily, the scores corresponding to different amplitude coefficients, attenuation coefficients and door cover closing speeds are determined based on the rating curve, and the weight values ​​corresponding to the amplitude coefficients, attenuation coefficients and door cover closing speeds are set to determine the final jitter evaluation score.

[0208] In some embodiments, the door cover shake evaluation score can be set to a 10-point system, and the scores corresponding to the combinations of different amplitude coefficients and / or attenuation coefficients in the rating curve are set to a 10-point system.

[0209] Exemplarily, the jitter level is determined based on the jitter evaluation score.

[0210] In some embodiments, determining the door cover closing speed based on the speed time domain data in the above step 1 can be implemented as the following steps b1 to b3:

[0211] Step b1: Determine the closing time point of the door cover based on the time information corresponding to the acceleration time domain data.

[0212] In some embodiments, the impact start time point is the time point when the acceleration time domain data undergoes a significant mutation during the closing process of the door cover.

[0213] Exemplarily, the closing time point of the door cover is a preset time calculated back from the impact starting time point, for example, the preset time is 0.2 seconds.

[0214] Step b2: Obtain the speed corresponding to the door closing time point from the speed time domain data.

[0215] Step b3: Determine the closing speed of the door cover based on the speed corresponding to the closing time point.

[0216] Exemplarily, the speed time domain data corresponding to the closing time point is the speed time domain data corresponding to the surface monitoring point of the door cover, and the closing speed of the door cover is obtained by multiplying the speed data corresponding to the surface monitoring point of the door cover by the locking speed coefficient.

[0217] For ease of understanding, the jitter evaluation method provided in the embodiment of the present application is described below in the form of an example.

[0218] In some embodiments, the door cover vibration evaluation parameters include vibration level, door closing speed and impact peak value. Figure 6 , the method for determining each jitter evaluation parameter is explained.

[0219] Exemplarily, assuming that the door cover jitter evaluation parameter is the door cover jitter level, the steps of the data processing device acquiring the jitter evaluation parameter based on the acceleration time domain data are d1 to d4:

[0220] d1. Determine the velocity time domain data.

[0221] Exemplarily, the first integration submodule receives acceleration time domain data transmitted by the acceleration sensor, performs integration processing on the acceleration time domain data to obtain velocity time domain data, and sends the velocity time domain data to the processing submodule for storage.

[0222] d2. Determine the displacement time domain data.

[0223] Exemplarily, the second integration submodule receives the velocity time-domain data and performs integration processing on the velocity time-domain data by the first integration submodule to obtain displacement time-domain data, and sends the displacement time-domain data to the processing submodule for storage.

[0224] d3. Fit the logarithmic decay curve.

[0225] Exemplarily, the processing submodule receives the displacement time domain data sent by the first integration submodule.

[0226] Exemplarily, the processing submodule fits a logarithmic attenuation curve according to the peak point of the displacement time domain data and the time information corresponding to the peak point.

[0227] d4. Determine the jitter level.

[0228] As a possible implementation manner, the door cover jitter level is determined based on characteristic parameters of the logarithmic attenuation curve and the door cover closing speed.

[0229] As another possible implementation manner, the jitter level of the door cover is determined based on characteristic parameters of the logarithmic decay curve.

[0230] Exemplarily, the processing submodule sends the shaking level of the door cover to the display module, and sends it to the terminal device through the wireless transmission module.

[0231] Exemplarily, assuming that the door cover vibration evaluation parameter is the door closing speed, the steps of the data processing device acquiring the vibration evaluation parameter are e1 to e2:

[0232] e1. Determine the closing time of the door cover.

[0233] Exemplarily, the processing submodule receives acceleration time domain data sent by the acceleration sensor, and determines the impact time point based on the acceleration time domain data.

[0234] e2. Determine the closing speed of the door cover.

[0235] Exemplarily, the processing submodule determines a door closing time point based on the impact time point, and determines a door closing speed of the door cover based on the door closing time point.

[0236] Exemplarily, the processing submodule sends the door closing speed to the display module, and sends it to the terminal device via the wireless transmission module.

[0237] In some embodiments, assuming that the jitter evaluation parameter of the door cover is an impact peak-to-peak value, the step of the data processing device acquiring the jitter evaluation parameter is: determining the impact peak-to-peak value.

[0238] Exemplarily, the processing submodule determines the peak-to-peak value of the impact based on the received acceleration time-domain data.

[0239] Exemplarily, the processing submodule sends the impulse peak-to-peak value to the display module, and sends it to the terminal device through the wireless transmission module.

[0240] In some embodiments, the wireless transmission module is used to send the jitter evaluation parameters of the door cover to the terminal device.

[0241] In some embodiments, the display module is used to display the jitter evaluation parameters of the door cover.

[0242] Exemplarily, the door cover shaking evaluation parameter is used to evaluate the evaluation level during the door cover closing process.

[0243] It is understandable that the jitter evaluation device provided by the present application adopts an integrated design, so that the jitter evaluation device can be simply fixed at the measuring point position of the door cover through a magnetic base. The jitter evaluation device provided by the present application realizes the convenience of the jitter test process during the closing of the door cover through wireless connection. Compared with the previous complex method of installing measuring points on the door cover, the vehicle body and the door lock respectively, its structure is simpler, the installation is more convenient, and the operation becomes more convenient. The jitter evaluation device provided by the present application significantly improves the test efficiency and reduces the difficulty of installation and maintenance.

[0244] For example, Figure 7 A schematic diagram of the composition of a jitter evaluation device provided in an embodiment of the present application. Figure 7 As shown, the jitter evaluation device 800 includes: a communication module 801 and a processing module 802. The communication module 801 is used to obtain the acceleration time domain data of the surface detection points of the door cover during the door cover closing process; the processing module 802 is used to obtain the jitter evaluation parameters of the door cover based on the acceleration time domain data.

[0245] In some embodiments, the jitter assessment parameter includes a jitter level.

[0246] In some embodiments, the jitter evaluation parameter further includes at least one of the following: door closing speed and impact peak-to-peak value.

[0247] In some embodiments, the processing module 802 is specifically used to perform integration processing on the acceleration time domain data to obtain integrated processed data, where the integrated processed data at least includes displacement time domain data; and determine the jitter level based on the integrated processed data.

[0248] In some embodiments, the processing module 802 is specifically configured to fit a logarithmic attenuation curve according to the peak points of the displacement time domain data and the time information corresponding to the peak points; and determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve.

[0249] In some embodiments, the processing module 802 is specifically used to determine the door cover closing speed based on the speed time domain data when the data after integration processing also includes speed time domain data; and determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve and the door cover closing speed.

[0250] In some embodiments, the characteristic parameter of the logarithmic attenuation curve includes at least one of the following: an amplitude coefficient and an attenuation coefficient.

[0251] In some embodiments, the processing module 802 is specifically used to determine the closing time point of the door cover based on the time information corresponding to the acceleration time domain data; obtain the speed corresponding to the closing time point from the speed time domain data; and determine the closing speed of the door cover based on the speed corresponding to the closing time point.

[0252] In some embodiments, the peak-to-peak value of the shock is determined based on the peak value of the acceleration time domain data.

[0253] The embodiment of the present invention provides a possible structural diagram of the electronic device involved in the above embodiment. Figure 8 As shown, the electronic device 900 includes: a processor 902 , a communication interface 903 , and a bus 904 . Optionally, the electronic device 900 may further include a memory 901 .

[0254] The processor 902 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the present application. The processor 902 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the present application. The processor 902 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0255] The communication interface 903 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0256] The memory 901 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0257] As a possible implementation, the memory 901 may exist independently of the processor 902, and the memory 901 may be connected to the processor 902 via a bus 904 to store instructions or program codes. When the processor 902 calls and executes the instructions or program codes stored in the memory 901, the identification resolution method provided in the embodiment of the present invention can be implemented.

[0258] In another possible implementation, the memory 901 may also be integrated with the processor 902 .

[0259] The bus 904 may be an extended industry standard architecture (EISA) bus, etc. The bus 904 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 8 It is represented by only one thick line, but it does not mean that there is only one bus or one type of bus.

[0260] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the service calling device can be divided into different functional modules to complete all or part of the functions described above.

[0261] The embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by computer instructions to instruct the relevant hardware, and the program can be stored in the above computer-readable storage medium. When the program is executed, it may include the processes of the above method embodiments. The computer-readable storage medium can be the memory or memory of any of the above embodiments. The above computer-readable storage medium can also be an external storage device of the above service calling device, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above service calling device. Further, the above computer-readable storage medium can also include both the internal storage unit of the above service calling device and an external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above service calling device. The above computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0262] An embodiment of the present application also provides a computer program product, which includes a computer program. When the computer program product runs on a computer, the computer is enabled to execute any one of the identification resolution methods provided in the above embodiments.

[0263] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A jitter evaluation device, characterized in that: include: Acceleration sensor, data processing module; The data processing module is connected to the acceleration sensor; The acceleration sensor is used to obtain acceleration time domain data of the surface detection points of the door cover during the closing process of the door cover, and send the acceleration time domain data to the data processing module; The data processing module is configured to obtain a jitter evaluation parameter of the door cover based on the acceleration time domain data.

2. The jitter evaluation device according to claim 1, characterized in that: The jitter evaluation parameter includes a jitter level.

3. The jitter evaluation device according to claim 2, characterized in that: The jitter evaluation parameters also include at least one of the following: door cover closing speed and impact peak-to-peak value.

4. The jitter evaluation device according to claim 2, characterized in that: The data processing module is configured to obtain a jitter evaluation parameter of the door cover based on the acceleration time domain data, including: Performing integration processing on the acceleration time domain data to obtain integrated processed data, wherein the integrated processed data at least includes displacement time domain data; The jitter level is determined based on the integrated data.

5. The jitter evaluation device according to claim 4, characterized in that: The data processing module is configured to determine the jitter level based on the integrated processed data, including: Fitting a logarithmic attenuation curve according to the peak point of the displacement time domain data and the time information corresponding to the peak point; The jitter level is determined based on characteristic parameters of the logarithmic decay curve.

6. The jitter evaluation device according to claim 5, characterized in that: The data processing module is configured to determine the jitter level based on the characteristic parameters of the logarithmic attenuation curve, including: In the case where the data after the integration processing also includes speed time domain data, determining the door cover closing speed based on the speed time domain data; The jitter level is determined based on the characteristic parameters of the logarithmic decay curve and the door cover closing speed.

7. The jitter evaluation device according to claim 5 or 6, characterized in that: The characteristic parameters of the logarithmic attenuation curve include at least one of the following: an amplitude coefficient and an attenuation coefficient.

8. The jitter evaluation device according to claim 6, characterized in that: The data processing module is configured to determine the door cover closing speed based on the speed time domain data, including: Determining a closing time point of the door cover based on time information corresponding to the acceleration time domain data; Acquire the speed corresponding to the door closing time point from the speed time domain data; The closing speed of the door cover is determined based on the speed corresponding to the closing time point.

9. The jitter evaluation device according to claim 4, characterized in that: The data processing module includes an integration submodule and a processing submodule; The integration submodule is used to perform integration processing on the acceleration time domain data to obtain integrated data; The processing submodule is used to determine the jitter level based on the data after the integration processing.

10. The jitter evaluation device according to claim 9, characterized in that: The integration submodule at least includes a first integration submodule and a second integration submodule; The first integration submodule is used to perform integration processing on the acceleration time domain data to obtain velocity time domain data; The second integration submodule is used to perform integration processing on the velocity time-domain data to obtain the displacement time-domain data.

11. The jitter evaluation device according to claim 3, characterized in that: The impact peak-to-peak value is determined based on a peak value of the acceleration time-domain data.

12. The jitter evaluation device according to claim 1, characterized in that: The jitter evaluation device further includes: a magnetic base, and the magnetic base is used to adsorb the jitter evaluation device on a surface detection point of the door cover.

13. The jitter evaluation device according to claim 1, characterized in that: The jitter evaluation device further includes: a wireless transmission module connected to the data processing module; The wireless transmission module is used to transmit the jitter evaluation parameters of the door cover determined by the data processing module to the terminal device.

14. The jitter evaluation device according to claim 1, characterized in that: The jitter evaluation device further includes: a display module connected to the data processing module; The display module is used to display the jitter evaluation parameters of the door cover determined by the data processing module.

15. A jitter evaluation method, characterized in that: Applied to the jitter evaluation device according to any one of claims 1 to 14, the method comprising: During the closing process of the door cover, obtaining acceleration time domain data of the surface detection points of the door cover; Based on the acceleration time domain data, a jitter evaluation parameter of the door cover is obtained.

16. The method according to claim 15, characterized in that The jitter evaluation parameter includes a jitter level.

17. The method according to claim 16, characterized in that The jitter evaluation parameters also include at least one of the following: door cover closing speed and impact peak-to-peak value.

18. The method according to claim 16, characterized in that The obtaining of the door cover vibration evaluation parameter based on the acceleration time domain data includes: Performing integration processing on the acceleration time domain data to obtain integrated processed data, wherein the integrated processed data at least includes displacement time domain data; The jitter level is determined based on the integrated data.

19. The method according to claim 18, characterized in that The step of determining the jitter level based on the data after the integration process comprises: Fitting a logarithmic attenuation curve according to the peak point of the displacement time domain data and the time information corresponding to the peak point; The jitter level is determined based on characteristic parameters of the logarithmic decay curve.

20. The method according to claim 19, characterized in that The determining the jitter level based on the characteristic parameter of the logarithmic attenuation curve includes: In the case where the data after the integration processing also includes speed time domain data, determining the door cover closing speed based on the speed time domain data; The jitter level is determined based on the characteristic parameters of the logarithmic decay curve and the door cover closing speed.

21. The method according to claim 19 or 20, characterized in that The characteristic parameters of the logarithmic attenuation curve include at least one of the following: an amplitude coefficient and an attenuation coefficient.

22. The method according to claim 20, characterized in that The determining the door cover closing speed based on the speed time domain data comprises: Determining a closing time point of the door cover based on time information corresponding to the acceleration time domain data; Acquire the speed corresponding to the door closing time point from the speed time domain data; The closing speed of the door cover is determined based on the speed corresponding to the closing time point.

23. The method according to claim 17, characterized in that The impact peak-to-peak value is determined based on a peak value of the acceleration time-domain data.

24. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the processor is connected to the memory, and the memory is used to store computer instructions, and the computer instructions are loaded and executed by the processor to enable the electronic device to implement the method as claimed in any one of claims 15 to 23.

25. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 15 to 23.

26. A computer program product, characterized in that The computer program product comprises computer instructions, which, when executed on a computer, cause the computer to perform the method according to any one of claims 15 to 23.

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