Air valve noise control method for automobile seat air bag massage

Abstract

The present invention relates to the field of air bag inflation control technology, and specifically to an air valve noise control method for car seat air bag massage. The present application first judges the difficulty of boosting at different positions, that is, the degree of inflation boosting resistance, based on the difference in air pressure changes of different air bags during inflation; and determines the degree of intervention of the main air pump based on the main air pump intervention demand represented by the deviation of air pressure in trend prediction, so that the main air pump adjustment power obtained by combining the degree of inflation boosting resistance and the degree of main air pump intervention is more accurate; in addition, the present application also takes into account that when the air pressure of adjacent massage air bags is relatively large or is subjected to relatively large pressure, inflation can be assisted by opening the air pressure valve between the adjacent massage air bags, and further the degree of valve opening can be determined in real time; thereby, the effect of inflating the massage air bags of car seats is better when the main air pump adjustment power and the real-time valve opening are combined.

Description

Technical Field

[0001] The invention relates to the technical field of air bag inflation control, and in particular to a method for controlling air valve noise for automobile seat air bag massage. Background Art

[0002] The noise generated when inflating the airbags in car massage seats can affect user comfort, especially in quiet environments or at night, where it can disrupt rest and even cause irritation. Long-term exposure can diminish the product experience and lead to user resistance. Consider that a higher main air pump power reduces inflation time but generates more noise. On the other hand, a lower main air pump power reduces noise, but the noise persists longer due to the longer inflation time. To address this issue, existing technologies typically conduct mechanical analysis of the force applied to different massage airbag positions when the user is seated. This measures the inflation difficulty of each massage airbag and adaptively determines the main air pump power based on this difficulty, achieving the goal of minimizing noise while also reducing inflation time. However, due to the difficulty of collecting mechanical data and the lack of intuitiveness in reflecting inflation difficulty, the accuracy of measuring the inflation difficulty of each massage airbag is generally low, resulting in poor inflation performance when the main air pump power determined based on the inflation difficulty is used. Summary of the Invention

[0003] In order to solve the technical problem that the accuracy of the boost difficulty obtained through mechanical analysis in the prior art is low, resulting in poor inflation effect when the main air pump power is determined according to the boost difficulty, the purpose of this application is to provide a valve noise control method for automobile seat air bag massage. The technical solution adopted is as follows:

[0004] The first aspect of the present application provides a method for controlling valve noise for car seat air bag massage, comprising:

[0005] Obtaining an air pressure time series curve of each massage air bag of the car seat within a preset time period after the main air pump starts to inflate the air; and using other massage air bags adjacent to each air pressure valve corresponding to each massage air bag as adjacent air bags corresponding to each air pressure valve;

[0006] Determining the degree of inflation and pressure increase resistance of each massage air bag based on the slope time-series attenuation of the air pressure time-series curve; determining the degree of intervention of the main air pump of each massage air bag based on the deviation of the prediction of the local air pressure change on the air pressure time-series curve; determining the adjustment power of the main air pump based on the inflation and pressure increase resistance and the degree of intervention of the main air pump;

[0007] Based on the deviation in the degree of inflation and pressure increase resistance between each massage air bag and the adjacent air bag and the real-time air pressure deviation, the valve opening degree of the corresponding air pressure valve at the current moment is determined; and the massage air bag of the car seat is continued to be inflated based on the power adjustment of the main air pump and the valve opening degree.

[0008] Furthermore, the process of obtaining the inflation boost resistance degree includes:

[0009] The characteristic points in the air pressure time series curve are obtained by using the Douglas Peucker algorithm; the characteristic points are connected in chronological order to obtain the analysis segments; the analysis segments with slopes less than a preset slope threshold are used as characteristic segments; the attenuation ratio is determined based on the ratio between the number of characteristic segments and the number of analysis segments; the corresponding obstruction rate is determined based on the time series distribution of the slope attenuation of each analysis segment; and the degree of inflation and pressure increase obstruction of each massage air bag is determined based on the product of the obstruction rate and the attenuation ratio.

[0010] Furthermore, the process of obtaining the blocking rate includes:

[0011] The difference between the slope of each analysis segment and the slope of the next analysis segment is used as the slope attenuation value of each analysis segment; the time length between the first moment and the starting moment of the analysis segment with the largest slope attenuation value is negatively correlated to determine the obstruction rate.

[0012] Furthermore, the process of obtaining the main air pump intervention degree includes:

[0013] On the air pressure time series curve, all moments after the first moment of the analysis line segment with the smallest slope are used as reference moments; based on the attenuation pattern of the air pressure value before each reference moment, a predicted air pressure difference value is determined; and based on maximizing the difference between the predicted air pressure difference value at each reference moment and the predicted air pressure difference value at the previous reference moment, a predicted air pressure attenuation value is determined;

[0014] The sum of the air pressure value at each reference moment and the predicted air pressure attenuation value is used as the corresponding air pressure prediction value; on the air pressure time series curve, the moment with the same air pressure value as the air pressure prediction value at each reference moment is used as the comparison moment for each reference moment; the minimum time interval between each reference moment and all comparison moments is used as the prediction duration deviation value for each reference moment;

[0015] The reference intervention degree at each reference moment is determined based on the product between the predicted air pressure attenuation value at each reference moment and the predicted duration deviation value; the main air pump intervention degree of each massage air bag is determined based on the normalized value of the mean of the reference intervention degrees at all reference moments.

[0016] Furthermore, the process of obtaining the predicted air pressure difference includes:

[0017] The difference between the air pressure value at each reference moment and the air pressure value at the previous moment is used as the reference air pressure difference value at each reference moment; all reference air pressure difference values before each reference moment are arranged in chronological order to obtain an air pressure difference value sequence for each reference moment; and the corresponding predicted air pressure difference value is determined based on the air pressure difference value sequence through an autoregressive model.

[0018] Furthermore, the process of obtaining the main air pump adjustment power includes:

[0019] The power adjustment degree is determined according to the inflation boost resistance degree and the main air pump intervention degree; and the main air pump adjustment power is determined according to the product between the power adjustment degree and the preset a priori main air pump power.

[0020] Furthermore, the process of obtaining the power adjustment degree includes:

[0021] A positive correlation mapping is performed on the product of the inflation boosting resistance degree and the main air pump intervention degree to determine the power adjustment degree.

[0022] Furthermore, the process of obtaining the valve opening degree includes:

[0023] Each massage air bag is used as a target air bag in turn; the air pressure valve between the target air bag and each corresponding adjacent air bag is used as a reference valve;

[0024] Based on the deviation in the degree of inflation and pressure increase resistance between each adjacent air bag and the target air bag and the real-time deviation in the air pressure value, the valve adjustment weight of the target air bag on the reference valve at the current moment is determined; based on the valve adjustment weight, the valve opening degree of the reference valve corresponding to the target air bag at the current moment is determined.

[0025] Furthermore, the process of obtaining the valve adjustment weight includes:

[0026] The difference between the inflation boost resistance degree of each adjacent air bag and the inflation boost resistance degree of the target air bag is maximized to determine the boost resistance deviation value of the target air bag on the reference valve; according to the current moment, the difference between the air pressure value of each adjacent air bag and the air pressure value of the target air bag is maximized to determine the corresponding air pressure deficit value; according to the sum of the boost resistance deviation value and the air pressure deficit value, the valve adjustment weight is determined.

[0027] Furthermore, the process of continuing to inflate the massage air bag of the car seat according to the power adjustment of the main air pump and the opening degree of the valve includes:

[0028] After the power of the main air pump for inflating each massage air bag is adjusted, the air pressure valve of each massage air bag is adjusted in real time according to the valve opening degree until the air pressure value of the corresponding massage air bag meets the inflation requirement.

[0029] In a second aspect, the present application provides an air valve noise control system for car seat air bag massage, the system comprising:

[0030] a data acquisition and preprocessing module for obtaining a time series curve of the air pressure of each massage air bag of the car seat within a preset time period after the main air pump starts to inflate the air; and treating the other massage air bags adjacent to each air pressure valve corresponding to each massage air bag as the adjacent air bags of each corresponding air pressure valve;

[0031] a main air pump power determination module, configured to determine the degree of inflation and pressure increase resistance of each massage air bag based on the slope time-series attenuation of the air pressure time-series curve; determine the degree of main air pump intervention for each massage air bag based on the deviation of the predicted local air pressure change on the air pressure time-series curve; and determine the main air pump adjustment power based on the inflation and pressure increase resistance and the main air pump intervention degree;

[0032] The massage air bag inflation module is used to determine the valve opening degree of the corresponding air pressure valve at the current moment based on the deviation in the degree of inflation and pressure increase resistance between each massage air bag and the adjacent air bag and the real-time air pressure deviation; and continue to inflate the massage air bag of the car seat according to the power adjustment of the main air pump and the valve opening degree.

[0033] In a third aspect, the present application provides a computer device comprising a memory and a processor. The memory is configured to store computer program code, and the processor is configured to call and execute the computer program code from the memory to perform the method of the first aspect or any embodiment of the first aspect of the present application.

[0034] In a fourth aspect, the present application provides a computer program product, comprising a computer program code. When the computer program code is executed, the method of the first aspect or any embodiment of the first aspect of the present application is performed.

[0035] In a fifth aspect, the present application provides a computer-readable storage medium, which stores computer program code. When the computer program code is executed, it performs the method of the first aspect of the present application or any embodiment of the first aspect.

[0036] This application has the following beneficial effects:

[0037] The present application first judges the difficulty of boosting at different positions, that is, the degree of inflation and boosting resistance, based on the difference in air pressure changes of different air bags during inflation; and determines the degree of intervention of the main air pump based on the main air pump intervention demand represented by the deviation of air pressure in trend prediction, so that the main air pump adjustment power obtained by combining the degree of inflation and boosting resistance and the degree of main air pump intervention is more accurate; in addition, the present application also takes into account that when the air pressure of adjacent massage air bags is relatively large or they are under relatively large pressure, inflation can be assisted by opening the air pressure valve between the adjacent massage air bags, and the degree of valve opening can be further determined in real time; thereby, the effect of inflating the massage air bags of car seats can be better achieved by combining the main air pump adjustment power and the real-time valve opening degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 A flow chart of a method for controlling valve noise in an automobile seat air bag massage system provided by one embodiment of the present invention;

[0040] Figure 2 A structural diagram of an air valve noise control system for car seat air bag massage provided by one embodiment of the present invention;

[0041] Figure 3 The present invention provides a schematic diagram of a computer device structure according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the following, in conjunction with the accompanying drawings and preferred embodiments, describes in detail the specific implementation method, structure, features and effects of the air valve noise control method for automobile seat air bag massage proposed by the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment, and the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0043] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0044] The following describes in detail a specific solution of a method for controlling valve noise for car seat air bag massage provided by the present invention with reference to the accompanying drawings.

[0045] The present application provides a method for controlling valve noise for car seat airbag massage. Figure 1 , which shows a flow chart of a method for controlling valve noise for car seat air bag massage provided by one embodiment of the present invention, the method comprising:

[0046] Step S101: Obtain the air pressure timing curve of each massage air bag of the car seat within a preset time period after the main air pump starts to inflate; and use the other massage air bags corresponding to each massage air bag and adjacent to each air pressure valve as the adjacent air bags corresponding to each air pressure valve.

[0047] In a specific implementation of an embodiment of the present invention, an air pressure sensor is installed at the inner center of each massage air bag in the car seat. The air pressure sensor collects the air pressure value of each massage air bag at each moment in real time. All air pressure values within a preset time period after the main air pump begins to inflate each massage air bag are arranged in chronological order and then curve-fitted to obtain an air pressure time series curve. The preset time period is set to 1 minute, and the sampling frequency is set to collect data once per second, which can be adjusted according to the specific implementation environment. It should be noted that in the embodiment of the present invention, the power of the main air pump during inflation within the preset time period is set to a preset a priori main air pump power, and the calculation of the main air pump adjustment power and the real-time calculation of the degree of inflation pressure resistance in the subsequent process are both performed after the preset time period ends. The preset a priori main air pump power is set to half of the maximum power of the main air pump, which can be adjusted according to the specific implementation environment.

[0048] Considering that when inflating one of the massage air bags, the air pressure valve connecting to the adjacent air bag can be opened to assist the inflation with the gas of the adjacent air bag, the adjacent air bag to which each massage air bag is adjacent under each air pressure valve is first determined.

[0049] Step S102: Determine the degree of inflation and pressure increase resistance of each massage air bag based on the slope time-series attenuation of the air pressure timing curve; determine the degree of intervention of the main air pump of each massage air bag based on the deviation of the prediction of local air pressure changes on the air pressure timing curve; determine the adjustment power of the main air pump based on the degree of inflation and pressure increase resistance and the degree of intervention of the main air pump.

[0050] When the main air pump inflates the air bag, it maintains a constant power. When the user applies varying pressures to the air bag, the pressure rise within the bag is hindered to varying degrees. The greater the pressure applied, the more difficult it is to achieve the desired pressure, and the rate of pressure rise in the bag gradually slows during inflation. Therefore, the degree of inflation resistance can be analyzed by observing the slope decay of the pressure time-series curve for a single massage air bag during inflation.

[0051] Preferably, in some possible implementations of the embodiments of the present invention, the process of obtaining the inflation boost resistance degree includes:

[0052] The Douglas Peucker algorithm is used to obtain characteristic points in the pressure time series curve; the characteristic points are sequentially connected in chronological order to obtain analysis segments; analysis segments with slopes less than a preset slope threshold are defined as characteristic segments; the attenuation ratio is determined based on the ratio between the number of characteristic segments and the number of analysis segments; and the corresponding blocking rate is determined based on the temporal distribution of the slope attenuation of each analysis segment. The blocking rate is obtained by: using the difference between the slope of each analysis segment and the slope of the next analysis segment as the slope attenuation value of each analysis segment; and performing negative correlation mapping between the time length between the first moment and the starting moment of the analysis segment with the largest slope attenuation value to determine the blocking rate. In a specific implementation of an embodiment of the present invention, the preset slope threshold is set to 0.5 and can be adjusted according to the specific implementation environment. It should be noted that the Douglas Peucker algorithm is a technical means well known to those skilled in the art and will not be further described here.

[0053] First, under normal inflation, the rate of pressure increase is typically high. When a massage bag is subjected to high pressure, the rate of pressure increase slows as the inflation process progresses. Therefore, in the air pressure time series curve, the greater the number of analysis segments (i.e., characteristic segments) below a preset slope threshold, the more pronounced the slowing pressure increase characteristic is, and the corresponding pressure applied to the massage bag is greater, indicating a greater degree of inflation resistance. Furthermore, the slope decay value represents the degree of slope decay over time. The earlier the analysis segment with the maximum slope decay value appears, the earlier the sudden drop in the pressure increase rate occurs, indicating that a greater external force is prematurely suppressing the pressure increase rate, and the corresponding degree of inflation resistance is greater. Therefore, the greater the resistance rate and the greater the decay ratio, the greater the degree of inflation resistance should be. Furthermore, the degree of inflation resistance for each massage bag is determined based on the product of the resistance rate and the decay ratio, so that the greater the pressure applied to the massage bag, the greater the degree of inflation resistance.

[0054] In a specific implementation of the embodiment of the present invention, the process of obtaining the inflation pressure resistance degree includes: ;in, For the The degree of resistance to inflation and pressure increase of each massage air bag; For the The time length between the first moment and the starting moment of the analysis segment with the largest slope attenuation value on the air pressure time series curve of each massage air bag; is a linear normalization function; For the The resistance rate of each massage air bag; For the The number of characteristic line segments on the air pressure time series curve of each massage air bag; For the The number of analysis segments on the air pressure time series curve of each massage air bag; For the The attenuation ratio of each massage air bag.

[0055] Under the action of pressure, the change of air pressure will be suppressed, causing the change of air pressure in the time sequence to deviate from the predicted trend. The greater the deviation between the predicted value and the actual air pressure value, the more severe the suppression of the inflation process under the action of pressure, and the more intensive intervention of the main air pump is required to improve the inflation efficiency.

[0056] Preferably, in some possible implementations of the embodiments of the present invention, the process of obtaining the intervention degree of the main air pump includes:

[0057] On the air pressure time series curve, all moments after the first moment of the analysis line segment with the smallest slope are used as reference moments; the predicted air pressure difference value at each reference moment is determined according to the attenuation law of the air pressure value before each reference moment; the predicted air pressure attenuation value is determined by maximizing the difference between the predicted air pressure difference value at each reference moment and the predicted air pressure difference value at the previous reference moment. The process of obtaining the predicted air pressure difference value includes: taking the difference between the air pressure value at each reference moment and the air pressure value at the previous moment as the reference air pressure difference value at each reference moment; arranging all the reference air pressure difference values before each reference moment in chronological order to obtain the air pressure difference value sequence at each reference moment; and determining the corresponding predicted air pressure difference value according to the air pressure difference value sequence through an autoregressive model. It should be noted that the autoregressive model is a technical means well known to those skilled in the art and will not be further described here.

[0058] For each reference moment, the greater the relative attenuation of the corresponding predicted pressure difference—that is, the larger the predicted pressure attenuation value—the slower the pressure changes over time, and the more severe the attenuation of the actual pressure growth trend under pressure. At this point, a greater main air pump power intervention is required, and the corresponding degree of main air pump intervention should be greater. Therefore, the predicted pressure attenuation value and the degree of main air pump intervention are positively correlated. Furthermore, using the moment after the first moment of the analysis line segment with the smallest slope as the reference moment for analysis ensures that the analyzed time range falls within a period of significant inflation velocity attenuation, thereby more accurately characterizing the degree of main air pump intervention.

[0059] The sum of the air pressure value at each reference moment and the predicted air pressure attenuation value is used as the corresponding air pressure prediction value; on the air pressure time series curve, the moment with the same air pressure value as the corresponding air pressure prediction value at each reference moment is used as the comparison moment for each reference moment; the minimum time interval between each reference moment and all comparison moments is used as the prediction duration deviation value for each reference moment. The greater the relative attenuation of the predicted air pressure difference, the more delayed the appearance time of the corresponding air pressure prediction value will be due to the trend, and the longer the lag time, the greater the degree of attenuation; therefore, the greater the minimum time interval between the reference moment and all comparison moments, the later the air pressure prediction value appears in the time series, and the more severe the attenuation of the corresponding air pressure value growth trend, thus requiring greater main air pump power for intervention; that is, the corresponding prediction duration deviation value is positively correlated with the degree of main air pump intervention. It should be noted that when the air pressure time series curve does not have a comparison moment equal to the corresponding air pressure prediction value, the corresponding comparison moment is determined by interpolation method in combination with the air pressure time series curve; the interpolation method is a technical means well known to those skilled in the art and will not be further limited or elaborated here.

[0060] Because the larger the predicted pressure decay value and the larger the predicted duration deviation value, the greater the main air pump power required for intervention, we further combine all reference moments and determine the reference intervention level for each reference moment based on the product of the predicted pressure decay value and the predicted duration deviation value at each reference moment. The main air pump intervention level for each massage air bag is determined based on the normalized mean of the reference intervention levels across all reference moments. This ensures that the greater the main air pump intervention level, the greater the main air pump power requirement.

[0061] In a specific implementation of the embodiment of the present invention, the process of obtaining the intervention degree of the main air pump is expressed by the formula: ;in, For the The degree of intervention of the main air pump of each massage air bag; For the The number of reference moments on the air pressure time series curve of each massage air bag; For the The air pressure time series curve of the massage air bag The difference between the predicted pressure difference at a reference moment and the predicted pressure difference at the previous reference moment; For the The maximum value of the difference between the predicted air pressure difference value at each reference moment and the predicted air pressure difference value at the previous reference moment on the air pressure time series curve of each massage air bag; For the The air pressure time series curve of the massage air bag The predicted pressure decay value at a reference time; For the The air pressure time series curve of the massage air bag the reference intervention level at a reference moment; is a linear normalization function; it should be noted that the difference represents the absolute value of the difference.

[0062] Preferably, in some possible implementations of the embodiments of the present invention, the process of obtaining the main air pump adjustment power includes: the greater the degree of inflation boost resistance, the stronger the resistance to inflation, and the greater the main air pump power required for inflation; and the main air pump intervention degree represents the power demand for the main air pump, so the power adjustment degree is further determined according to the inflation boost resistance degree and the main air pump intervention degree; and then the power adjustment degree is used as the adjustment weight, and the main air pump adjustment power is determined according to the product between the power adjustment degree and the preset a priori main air pump power. Preferably, in some possible implementations of the embodiments of the present invention, the product between the inflation boost resistance degree and the main air pump intervention degree is positively correlated to determine the power adjustment degree; wherein, the process of obtaining the main air pump adjustment power is expressed in the formula as follows: ;in, For the Adjust the power of the main air pump of each massage air bag; The preset a priori main air pump power; For the The degree of intervention of the main air pump of each massage air bag; For the The degree of resistance to inflation and pressure increase of each massage air bag; For the The power adjustment level of each massage air bag; when the main air pump adjustment power is set to half of the main air pump's maximum power, positive correlation mapping is performed using the corresponding method to ensure that the main air pump adjustment power value does not exceed the main air pump's maximum power. After determining the main air pump adjustment power, the corresponding massage air bag is inflated with the main air pump adjustment power during the subsequent inflation process.

[0063] Step S103: Determine the valve opening degree of the corresponding air pressure valve at the current moment based on the deviation in the degree of inflation and pressure increase resistance between each massage air bag and the adjacent air bag and the real-time air pressure deviation; continue to inflate the massage air bag of the car seat based on the power and valve opening degree adjusted by the main air pump.

[0064] When inflating one of the massage air bags, if the gas pressure and the pressure exerted on the adjacent air bag adjacent to the air pressure valve are relatively large, the massage air bag can be assisted in inflating by opening the air pressure valve, thereby reducing the use time of the main air pump to a certain extent and indirectly reducing the noise caused by the long-term opening of the main air pump; therefore, the adjacent air bags adjacent to the air pressure valve of each massage air bag are further analyzed to determine the opening degree of the air pressure valve.

[0065] Preferably, in some possible implementations of the embodiments of the present invention, the process of obtaining the valve opening degree includes:

[0066] Take each massage air bag as the target air bag in turn; take the air pressure valve between the target air bag and each corresponding adjacent air bag as the reference valve; determine the valve adjustment weight of the target air bag on the reference valve at the current moment according to the deviation of the inflation boost resistance degree between each adjacent air bag and the target air bag and the real-time deviation of the air pressure value; wherein, the process of obtaining the valve adjustment weight includes: maximizing the difference between the inflation boost resistance degree of each adjacent air bag and the inflation boost resistance degree of the target air bag, and determining the boost resistance deviation value of the target air bag on the reference valve; maximizing the difference between the air pressure value of each adjacent air bag and the air pressure value of the target air bag at the current moment, and determining the corresponding air pressure inverse difference value; and determining the valve adjustment weight according to the sum of the boost resistance deviation value and the air pressure inverse difference value.

[0067] For adjacent airbags adjacent to the target airbag, the greater the corresponding pressure resistance relative to the target airbag's, the greater the relative pressure it is subjected to. This means that when the valve is opened, it can assist the target airbag in inflating, and the valve opening should be larger. Furthermore, the greater the pressure of the adjacent airbag relative to the target airbag's pressure, the stronger the tendency for gas from the adjacent airbag to flow into the target airbag, and the larger the valve opening should be. Therefore, the larger the pressure resistance deviation and pressure deficit, the greater the valve adjustment weight.

[0068] The valve opening degree of the reference valve corresponding to the target airbag at the current moment is further determined based on the valve adjustment weight; in a specific implementation of an embodiment of the present invention, when the valve adjustment weight is less than or equal to 0, the reference valve is not opened; when the valve adjustment weight is greater than 0, the normalized value of the valve adjustment weight is used as the valve opening degree of the reference valve corresponding to the target airbag at the current moment. When the valve adjustment weight is less than or equal to 0, it means that the pressure deficit and gas deficit of the adjacent airbag may not be sufficient to support the gas of the adjacent airbag to enter the target airbag. In order to prevent the gas of the target airbag from passing through the reference valve to the adjacent airbag, the valve of the reference valve is closed at this time. When the valve adjustment weight is greater than 0, the greater the valve adjustment weight, the more significant the tendency of the gas of the adjacent airbag to enter the target airbag, so the greater the valve opening degree; the numerical value of the valve opening degree is the percentage of the valve opening size, which will not be further elaborated here.

[0069] In a specific implementation of the embodiment of the present invention, the process of obtaining the valve adjustment weight includes: ;in, Set the target airbag at the current moment Corresponding reference valve The valve adjusts the weight; Target airbag The corresponding degree of inflation pressure resistance; Target airbag Through the reference valve The degree of resistance to inflation of adjacent air bags; Set the target airbag at the current moment The air pressure value; Set the target airbag at the current moment Through the reference valve The air pressure value of the connected adjacent air bags; Target airbag In the reference valve Boost resistance deviation value on ; Target airbag In the reference valve The pressure deficit value on is the maximization function, is a maximization function, where the maximum value used for maximization is obtained through historical data.

[0070] At this point, the main air pump power adjustment and the corresponding air pressure valve opening degree are obtained when inflating the massage air bags. Therefore, the power of the main air pump for each massage air bag is further adjusted. After the main air pump power adjustment is completed, the air pressure valve of each massage air bag is adjusted in real time according to the valve opening degree until the corresponding massage air bag's air pressure reaches the inflation requirement. The inflation requirement needs to be adjusted according to the massage needs in the specific implementation environment, which will not be further explained here.

[0071] To sum up, the valve noise control method for car seat air bag massage first judges the difficulty of boosting at different positions, that is, the degree of inflation boosting resistance, based on the difference in air pressure changes of different air bags during inflation; and determines the degree of intervention of the main air pump based on the main air pump intervention demand represented by the deviation of air pressure in trend prediction, so that the main air pump adjustment power obtained by combining the degree of inflation boosting resistance and the degree of main air pump intervention is more accurate; in addition, the present application also takes into account that when the air pressure of adjacent massage air bags is relatively large or they are under relatively large pressure, inflation can be assisted by opening the air pressure valve between the adjacent massage air bags, and the degree of valve opening can be further determined in real time; thereby, the effect of inflating the massage air bags of car seats can be better achieved by combining the main air pump adjustment power and the real-time valve opening degree.

[0072] This application also provides a valve noise control system for car seat air bag massage, please refer to Figure 2 , which shows a structural diagram of an air valve noise control system for car seat air bag massage provided by an embodiment of the present invention. The system includes: a data acquisition and preprocessing module 201, a main air pump power determination module 202 and a massage air bag inflation module 203.

[0073] The data acquisition and preprocessing module 201 is configured to obtain a time series curve of the air pressure of each massage air bag of the vehicle seat within a preset time period after the main air pump begins to inflate the air bag; and to define the other massage air bags adjacent to each air pressure valve corresponding to each massage air bag as the adjacent air bags of each air pressure valve;

[0074] The main air pump power determination module 202 is used to determine the degree of inflation and pressure increase resistance of each massage air bag based on the slope time-series attenuation of the air pressure time-series curve; determine the degree of main air pump intervention for each massage air bag based on the deviation of the predicted local air pressure change on the air pressure time-series curve; and determine the main air pump adjustment power based on the degree of inflation and pressure increase resistance and the degree of main air pump intervention;

[0075] The massage air bag inflation module 203 is used to determine the valve opening degree of the corresponding air pressure valve at the current moment based on the deviation in the degree of inflation and pressure increase resistance between each massage air bag and the adjacent air bag and the real-time air pressure deviation; and to continue to inflate the massage air bag of the car seat according to the power and valve opening degree adjusted by the main air pump.

[0076] It should be noted that the system provided in the above embodiment is merely an example of the division of the aforementioned functional modules. In actual applications, the aforementioned functions can be assigned to different functional modules as needed, that is, the internal structure of the computer device can be divided into different functional modules to complete all or part of the functions described above. Furthermore, the valve noise control system for automobile seat airbag massage provided in the above embodiment and the valve noise control method for automobile seat airbag massage provided in the above embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0077] The present application also provides a computer device. Figure 3 , which shows a schematic structural diagram of a computer device provided by an embodiment of the present invention, the computer device includes a memory 301, a processor 302, and a computer program 303 stored in the memory 301 and running on the processor 302, wherein when the processor 302 executes the computer program 303, the computer device can execute any of the air valve noise control methods for automobile seat air bag massage introduced above.

[0078] An embodiment of the present application also provides a computer program product. When the computer program product is run on a computer device, the computer device can execute any of the air valve noise control methods for automobile seat air bag massage introduced above.

[0079] An embodiment of the present application also provides a computer-readable storage medium, which stores computer program code. When the computer program code runs on a computer device, the computer device can execute any of the air valve noise control methods for car seat air bag massage introduced above.

[0080] In the embodiments provided in the present application, it should be understood that the provided computer devices, computer program products and computer-readable storage media are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the methods provided above and will not be repeated here.

[0081] It should be noted that the order in which the embodiments of the present invention are described above is for illustrative purposes only and does not necessarily represent the superiority or inferiority of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0082] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

Claims

1. A method for controlling valve noise in an airbag massage seat for a car, characterized in that: The method comprises: Obtaining an air pressure time series curve of each massage air bag of the car seat within a preset time period after the main air pump starts to inflate the air; and using other massage air bags adjacent to each air pressure valve corresponding to each massage air bag as adjacent air bags corresponding to each air pressure valve; Determining the degree of inflation and pressure increase resistance of each massage air bag based on the slope time-series attenuation of the air pressure time-series curve; determining the degree of intervention of the main air pump of each massage air bag based on the deviation of the prediction of the local air pressure change on the air pressure time-series curve; determining the adjustment power of the main air pump based on the inflation and pressure increase resistance and the degree of intervention of the main air pump; Determining the valve opening degree of the corresponding air pressure valve at the current moment based on the inflation pressure increase resistance deviation between each massage air bag and the adjacent air bag and the real-time air pressure deviation; and continuing to inflate the massage air bag of the car seat based on the power of the main air pump and the valve opening degree; The process of obtaining the inflation boost resistance degree includes: The characteristic points in the air pressure time series curve are obtained by using the Douglas Peucker algorithm; the characteristic points are connected in chronological order to obtain the analysis segments; the analysis segments with slopes less than a preset slope threshold are used as characteristic segments; the attenuation ratio is determined based on the ratio between the number of characteristic segments and the number of analysis segments; the corresponding obstruction rate is determined based on the time series distribution of the slope attenuation of each analysis segment; and the degree of inflation and pressure increase obstruction of each massage air bag is determined based on the product of the obstruction rate and the attenuation ratio.

2. The method for controlling valve noise for car seat airbag massage according to claim 1, characterized in that: The process of obtaining the blocking rate includes: The difference between the slope of each analysis segment and the slope of the next analysis segment is used as the slope attenuation value of each analysis segment; the time length between the first moment and the starting moment of the analysis segment with the largest slope attenuation value is negatively correlated to determine the obstruction rate.

3. The method for controlling valve noise for car seat air bag massage according to claim 1, characterized in that: The process of obtaining the main air pump intervention degree includes: On the air pressure time series curve, all moments after the first moment of the analysis line segment with the smallest slope are used as reference moments; based on the attenuation pattern of the air pressure value before each reference moment, a predicted air pressure difference value is determined; and based on maximizing the difference between the predicted air pressure difference value at each reference moment and the predicted air pressure difference value at the previous reference moment, a predicted air pressure attenuation value is determined; The sum of the air pressure value at each reference moment and the predicted air pressure attenuation value is used as the corresponding air pressure prediction value; on the air pressure time series curve, the moment with the same air pressure value as the air pressure prediction value at each reference moment is used as the comparison moment for each reference moment; the minimum time interval between each reference moment and all comparison moments is used as the prediction duration deviation value for each reference moment; The reference intervention degree at each reference moment is determined based on the product between the predicted air pressure attenuation value at each reference moment and the predicted duration deviation value; the main air pump intervention degree of each massage air bag is determined based on the normalized value of the mean of the reference intervention degrees at all reference moments.

4. The method for controlling valve noise for car seat air bag massage according to claim 3, characterized in that: The process of obtaining the predicted air pressure difference includes: The difference between the air pressure value at each reference moment and the air pressure value at the previous moment is used as the reference air pressure difference value at each reference moment; all reference air pressure difference values before each reference moment are arranged in chronological order to obtain an air pressure difference value sequence for each reference moment; and the corresponding predicted air pressure difference value is determined based on the air pressure difference value sequence through an autoregressive model.

5. The method for controlling valve noise for car seat air bag massage according to claim 1, characterized in that: The process of obtaining the main air pump adjustment power includes: The power adjustment degree is determined according to the inflation boost resistance degree and the main air pump intervention degree; and the main air pump adjustment power is determined according to the product between the power adjustment degree and the preset a priori main air pump power.

6. The method for controlling valve noise for car seat airbag massage according to claim 5, characterized in that: The process of obtaining the power adjustment degree includes: A positive correlation mapping is performed on the product of the inflation boosting resistance degree and the main air pump intervention degree to determine the power adjustment degree.

7. The method for controlling valve noise for car seat airbag massage according to claim 1, characterized in that: The process of obtaining the valve opening degree includes: Each massage air bag is used as a target air bag in turn; the air pressure valve between the target air bag and each corresponding adjacent air bag is used as a reference valve; Based on the deviation in the degree of inflation and pressure increase resistance between each adjacent air bag and the target air bag and the real-time deviation in the air pressure value, the valve adjustment weight of the target air bag on the reference valve at the current moment is determined; based on the valve adjustment weight, the valve opening degree of the reference valve corresponding to the target air bag at the current moment is determined.

8. The method for controlling valve noise for car seat airbag massage according to claim 7, characterized in that: The process of obtaining the valve adjustment weight includes: The difference between the inflation boost resistance degree of each adjacent air bag and the inflation boost resistance degree of the target air bag is maximized to determine the boost resistance deviation value of the target air bag on the reference valve; according to the current moment, the difference between the air pressure value of each adjacent air bag and the air pressure value of the target air bag is maximized to determine the corresponding air pressure deficit value; according to the sum of the boost resistance deviation value and the air pressure deficit value, the valve adjustment weight is determined.

9. The method for controlling valve noise for car seat airbag massage according to claim 1, characterized in that: The process of continuing to inflate the massage air bag of the car seat according to the power adjustment of the main air pump and the opening degree of the valve includes: After the power of the main air pump for inflating each massage air bag is adjusted, the air pressure valve of each massage air bag is adjusted in real time according to the valve opening degree until the air pressure value of the corresponding massage air bag meets the inflation requirement.

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