Dehydration control method, electronic equipment and fabric treatment equipment

Abstract

The invention relates to the technical field of fabric treatment equipment, in particular to a dehydration control method, electronic equipment and fabric treatment equipment. The dewatering control method comprises the following steps: in a dewatering procedure, increasing the dewatering rotating speed of a fabric processing drum; in the speed raising stage, first operation parameters of the motor are obtained; determining a second operation parameter for quantifying the vibration condition of the fabric processing drum according to the first operation parameter; and pre-judging whether the cylinder collision risk exists in the dehydration speed increasing process or not based on the second operation parameter. According to the method, by determining the second operation parameter for quantifying the vibration condition of the fabric treatment cylinder, the speed increasing process of the fabric treatment cylinder can be dynamically adjusted, the dewatering efficiency of the fabric is improved, meanwhile, the effect of reducing dewatering noise can be achieved, and the stability and reliability of the fabric treatment cylinder in the dewatering process of the fabric are effectively improved.

Description

Technical Field

[0001] This application relates to the field of fabric processing equipment technology, and in particular to a dehydration control method, electronic equipment, and fabric processing equipment. Background Technology

[0002] When fabric processing equipment, such as washing machines, is performing a spin-drying operation, uneven distribution of fabric within the inner drum of the fabric processing drum, or structural design issues with the washing machine itself, can easily lead to unbalanced rotation of the inner drum.

[0003] This imbalance can cause the washing machine to vibrate violently, leading to noise problems. Noise not only affects the user experience but can also cause additional stress on the washing machine's mechanical components, shortening the equipment's lifespan.

[0004] Most solutions to these problems focus on improving the mechanical structure. For example, adding damping devices can absorb some vibration energy, and optimizing the counterweight can improve the balance of the inner drum. However, these methods require additional hardware in the design and manufacturing process of the washing machine, leading to increased production costs and adding to the overall complexity of the device. Summary of the Invention

[0005] In view of this, this application provides a dehydration control method, electronic device and fabric processing equipment to solve the problem that the existing fabric processing equipment causes poor user experience due to high noise when dehydrating fabrics.

[0006] A first aspect of this application provides a dehydration control method applied to a fabric processing device, the fabric processing device including a fabric processing drum and a motor, the motor being used to drive the fabric processing drum to rotate, the dehydration control method comprising:

[0007] In the dehydration process, the dehydration speed of the fabric treatment drum is increased based on a stepped speed-up strategy, which includes multiple consecutive speed-up stages.

[0008] During the acceleration phase, the first operating parameters of the motor are obtained, and the first operating parameters are used to characterize the vibration of the fabric treatment cylinder;

[0009] A second set of operating parameters is determined based on the first set of operating parameters to quantify the vibration of the fabric treatment cylinder.

[0010] Based on the second operating parameters, a prediction is made as to whether there is a risk of collision with the cylinder during the dehydration acceleration process.

[0011] In some embodiments, the step of predicting whether there is a risk of cylinder collision during the dehydration acceleration process based on the second operating parameters includes:

[0012] The first judgment result is obtained by comparing the second operating parameter with its corresponding second preset threshold at least once.

[0013] Wherein, when the first judgment result is that the second operating parameter is greater than or equal to the second preset threshold, it is considered that there is a risk of collision with the drum, and the dehydration speed of the fabric processing drum is subjected to a second control process;

[0014] The second control process includes: reducing the dewatering speed of the fabric treatment drum to the speed of the first speed-up stage in the plurality of consecutive speed-up stages, and controlling the dewatering speed of the fabric treatment drum to re-enter the dewatering speed-up stage based on the stepped speed-up strategy.

[0015] In some embodiments, the step of predicting whether there is a risk of cylinder collision during the dehydration acceleration process based on the second operating parameters further includes:

[0016] When the first judgment result is that the second operating parameter is less than the second preset threshold, the dehydration speed of the fabric processing drum is further controlled according to the second judgment result of the first operating parameter and the corresponding first preset threshold.

[0017] In some embodiments, further controlling the dewatering speed of the fabric treatment drum based on the second judgment result of the first operating parameter and its corresponding first preset threshold includes:

[0018] When the second determination result is that the first operating parameter is less than the first preset threshold, the dehydration speed of the fabric processing cylinder is subjected to the first control process.

[0019] The first control process includes: controlling the dehydration speed of the fabric treatment drum to increase based on the stepped speed-up strategy.

[0020] In some embodiments, further controlling the dewatering speed of the fabric treatment drum based on the second judgment result of the first operating parameter and the corresponding first preset threshold also includes:

[0021] When the second judgment result is that the first operating parameter is greater than the first preset threshold, the dehydration speed of the fabric processing cylinder is subjected to a third control process.

[0022] The third control process includes: reducing the dewatering speed of the fabric processing drum from the speed in the current acceleration stage to the speed in the previous acceleration stage, re-acquiring the first operating parameters and the second operating parameters, and controlling the dewatering speed of the fabric processing drum based on the judgment result.

[0023] In some implementations, the second operating parameter includes at least the vibration amplitude of the motor at the current speed;

[0024] The first operating parameter includes at least the current fluctuation component of the motor at the current speed;

[0025] The second preset threshold is the safe distance when the fabric processing tube does not collide with the tube during operation;

[0026] Each acceleration stage is provided with a first preset threshold, and the first preset threshold is the same in each acceleration stage.

[0027] In some embodiments, determining the second operating parameter, based on the first operating parameter, to quantify the vibration of the fabric treatment cylinder includes:

[0028] The second operating parameter is determined based on the mapping relationship between the first operating parameter and the second operating parameter in the current operating state of the fabric processing drum. The current operating state of the fabric processing drum includes the garment load state and the acceleration stage.

[0029] During the operation of the dehydration process, the mapping relationship between the second operating parameter and the first operating parameter differs under different load conditions and different acceleration stages.

[0030] In some embodiments, the dehydration control method further includes establishing the mapping relationship for different fabric treatment drum operating states in the following manner:

[0031] The calibration equation is obtained by performing regression analysis on the current fluctuation component and the corresponding vibration amplitude, and multiple initial mapping relationships are established based on the calibration equation.

[0032] Based on historical data, the initial mapping relationships are optimized using linear regression and / or machine learning algorithms to obtain the mapping relationships. The historical data includes at least the current signal and vibration data of the motor under different fabric types, different fabric weights, and different water levels during the dehydration process.

[0033] In some embodiments, the fabric processing equipment includes an acceleration sensor and a current sensor;

[0034] The accelerometer is used to collect the vibration amplitude of the motor at different speeds;

[0035] The current sensor is used to acquire the current signal of the motor in real time, wherein the current fluctuation component is obtained by extracting the current signal.

[0036] In some implementations, the mapping relationship satisfies:

[0037]

[0038] Among them, A n denoted as the current harmonic amplitude, k1, k2, and b are fitting coefficients, the values ​​of k1, k2, and b are related to the operating state of the fabric treatment tube, ΔI represents the first operating parameter, and X represents the second operating parameter.

[0039] A second aspect of this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the dehydration control method as described in the first aspect.

[0040] A third aspect of this application provides a fabric treatment apparatus that is controlled by the dehydration control method described in the first aspect, or includes the electronic equipment described in the second aspect.

[0041] Compared with the prior art, the main advantages of this application are:

[0042] This application discloses a dehydration control method, electronic equipment, and fabric processing equipment. The dehydration control method includes: in a dehydration process, increasing the dehydration speed of the fabric processing drum based on a stepped speed-up strategy, wherein the stepped speed-up strategy includes multiple speed-up stages; during the speed-up process, acquiring a first operating parameter of the motor, which characterizes the vibration of the fabric processing drum; determining a second operating parameter quantifying the vibration of the fabric processing drum based on the first operating parameter; and predicting the risk of drum collision during the speed-up process based on the second operating parameter. By determining the second operating parameter quantifying the vibration of the fabric processing drum, this application enables dynamic adjustment of the speed-up process of the fabric processing drum, improving the dehydration efficiency of the fabric while reducing dehydration noise, effectively improving the stability and reliability of the fabric processing drum during the dehydration process. Attached Figure Description

[0043] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0044] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0045] Figure 1 This is a flowchart of the steps of a dehydration control method according to an embodiment of this application;

[0046] Figure 2 This is a logic flowchart of a dehydration control method according to an embodiment of the present application, which establishes a preset model;

[0047] Figure 3 This is a diagram showing the correspondence between stepped rotation speed and a first preset threshold in a dehydration control method according to an embodiment of this application;

[0048] Figure 4 This is a flowchart illustrating the logical judgment of a dehydration control method according to an embodiment of this application. Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0051] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0052] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0053] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, but should not be construed as limiting this application.

[0054] like Figure 1 and Figure 4 As shown, an exemplary embodiment of this application provides a dehydration control method that can be applied to fabric processing equipment. The fabric processing equipment includes a fabric processing drum and a motor, the motor being used to drive the fabric processing drum to rotate, for example, to drive the fabric processing drum to rotate and run a dehydration program, thereby dehydrating the fabric.

[0055] The fabric processing equipment may include, but is not limited to, washing machines, which may include, but are not limited to, washer-dryer combos, etc. For example, the washing machine may be a front-loading washing machine or a top-loading washing machine with drying or washing functions, and of course, it may also be other types of fully automatic washing machines.

[0056] In this example and the examples below, the fabric handling equipment is illustrated using a drum washing machine as an example.

[0057] Specifically, the dehydration control method includes the following steps:

[0058] Step S100: In the dewatering process, the dewatering speed of the fabric treatment drum is increased based on a step-increase strategy, which includes multiple speed-increase stages.

[0059] Step S200: During the speed-up phase, the first operating parameters of the motor are obtained. The first operating parameters are used to characterize the vibration of the fabric treatment cylinder.

[0060] Step S300: Determine the second operating parameters for the vibration of the quantified fabric treatment cylinder based on the first operating parameters.

[0061] Step S400: Based on the second operating parameters, predict whether there is a risk of collision during the dehydration acceleration process.

[0062] In step S100, during the dehydration process, the dehydration speed of the fabric treatment drum is increased based on a stepped speed-up strategy, which includes multiple consecutive speed-up stages.

[0063] Specifically, such as Figure 3 As shown, the stepped speed-up strategy refers to the gradual increase in the dewatering speed of the fabric processing drum according to multiple preset consecutive speed-up stages, with each speed-up stage corresponding to a specific speed range. For example, the stepped speed-up strategy may include multiple consecutive speed-up stages such as the first speed-up stage, the second speed-up stage, and the third speed-up stage. The speed range of the first speed-up stage (corresponding to the 0th speed) can be 0-400 rpm, the speed range of the second speed-up stage (corresponding to the 1st speed) can be 400-800 rpm, the speed range of the third speed-up stage (corresponding to the 2nd speed) can be 800-1200 rpm, and so on.

[0064] It should be noted that there is a first preset threshold at the turning point between any two adjacent acceleration stages.

[0065] In step S200, the first operating parameter can be the current fluctuation component of the motor at the current speed. This current fluctuation component can be obtained by extracting it from the motor's current signal, which can be acquired by a current sensor installed in the fabric processing equipment. The first operating parameter is used to characterize the vibration of the fabric processing cylinder.

[0066] In step S300, second operating parameters are determined based on the first operating parameters to quantify the vibration of the fabric treatment cylinder. Specifically, the first operating parameters can be input into a preset model to obtain the second operating parameters. The preset model can be a mapping database that stores the mapping relationship between current fluctuation components and vibration amplitudes. By inputting the acquired current fluctuation component into the preset model, the vibration amplitude corresponding to that current fluctuation component, i.e., the second operating parameter, can be obtained.

[0067] In one example, the preset model is a mapping database of current fluctuation components of multiple motors and the corresponding vibration amplitudes. The current fluctuation components and their corresponding vibration amplitudes are obtained by running the dehydration program on the prototype under different load conditions and different speed conditions. The different load conditions include at least three states: no load, half load, and full load.

[0068] Specifically, an empty state can mean that there is no fabric in the fabric processing tube, a half-loaded state means that the weight of the fabric in the fabric processing tube is about half of the rated capacity, and a full-loaded state means that the weight of the fabric in the fabric processing tube is close to or reaches the rated capacity.

[0069] The process of establishing the mapping database includes: performing regression analysis on the current fluctuation components and their corresponding vibration amplitudes, and establishing multiple initial mapping relationships based on the calibration equations.

[0070] Based on historical data, linear regression and / or machine learning algorithms are used to optimize the initial mapping relationships, resulting in the final mapping relationships. The historical data includes at least the current signals and vibration data of the motor under different fabric types, fabric weights, and water levels during the dehydration process. In other words, the initial mapping database is determined by optimizing the mapping relationships using linear regression and / or machine learning algorithms. The initial mapping database is then trained using historical data to establish the final mapping database, thus obtaining the final mapping relationships.

[0071] In one example, the dewatering process is run at different speed steps under different load conditions (no load, half load, full load) of the fabric processing equipment. The vibration amplitude X of the system at different motor speeds ω is collected by an accelerometer. At the same time, the effective current fluctuation component ΔI is extracted from the real-time current signal I(t) of the motor by a current sensor.

[0072] A mapping database was established between the effective current fluctuation component ΔI and the corresponding vibration amplitude X for regression analysis. Simultaneously, multiple mapping relationships were established through calibration equations, as follows:

[0073]

[0074] Among them, A n Let F(X, I) be the amplitude of the current harmonics, and k1, k2, and b be fitting coefficients. The values ​​of k1, k2, and b are related to the operating state of the fabric treatment cylinder. ΔI represents the first operating parameter, and X represents the second operating parameter.

[0075] Accumulate multi-period running data, and optimize the initial mapping relationship corresponding to each calibration equation through linear regression or machine learning algorithms (such as random forest) to determine the initial mapping database.

[0076] Finally, the initial mapping database is trained based on historical data to improve data accuracy, thereby establishing a mapping database to obtain the mapping relationships.

[0077] In step S400, a prediction is made based on the second operating parameters to determine whether there is a risk of cylinder collision during the dehydration acceleration process, including:

[0078] A first judgment result is obtained by comparing the second operating parameter with its corresponding second preset threshold. Specifically, the first judgment result refers to the result obtained by comparing the second operating parameter (vibration amplitude) with the second preset threshold. That is, when the first judgment result is that the second operating parameter is greater than or equal to the second preset threshold, it is determined that there is a risk of collision with the drum. At this time, a second control process is applied to the dewatering speed of the fabric processing drum. The second control process includes: reducing the dewatering speed of the fabric processing drum to the speed of the first acceleration stage in a series of consecutive acceleration stages, and controlling the dewatering speed of the fabric processing drum to re-enter the dewatering acceleration stage based on a stepped acceleration strategy.

[0079] Furthermore, when the first judgment result indicates that the second operating parameter is less than the second preset threshold, the dewatering speed of the fabric processing drum is controlled based on the second judgment result of the first operating parameter and the first preset threshold.

[0080] When controlling the dewatering speed of the fabric treatment drum, the first judgment result, namely the comparison result of the vibration amplitude and the second preset threshold, is given priority, and then the second judgment result, namely the comparison result of the current fluctuation component and the first preset threshold, is given priority.

[0081] In this example, by determining the second operating parameter of the vibration of the fabric treatment cylinder, the speed-up process of the fabric treatment cylinder can be dynamically adjusted, which improves the dewatering efficiency of the fabric and reduces the dewatering noise, effectively improving the stability and reliability of the fabric treatment cylinder for the fabric during the dewatering process.

[0082] like Figures 1 to 4 As shown, in some embodiments, when the first judgment result is that the second operating parameter is greater than or equal to the second preset threshold, it is determined that there is a risk of collision with the drum. At this time, the dehydration speed of the fabric processing drum is subjected to a second control process.

[0083] The second control process includes: reducing the dewatering speed of the fabric treatment drum to the speed of the first speed-up stage in a series of consecutive speed-up stages, and controlling the dewatering speed of the fabric treatment drum to re-enter the dewatering speed-up stage based on a stepped speed-up strategy.

[0084] That is, when the first judgment result is that the second operating parameter is greater than the second preset threshold, the second judgment result is no longer performed, and the dewatering speed of the fabric processing drum is subjected to the second control process. Specifically, when the vibration amplitude is greater than or equal to the second preset threshold, it indicates that the fabric processing drum is running unstable. At this time, the comparison result between the current fluctuation component and the first preset threshold is no longer considered, the dewatering speed is directly reduced to the speed of the first acceleration stage, and then the dewatering acceleration process is restarted, and the judgment is repeated.

[0085] It should be noted that the engine speed corresponding to the first acceleration phase is... Figure 3 The 0th speed range in the range, and the speed at this time is the safe speed obtained by the prototype in the anti-eccentricity test.

[0086] like Figures 1 to 4 As shown, in some embodiments, when the first judgment result is that the second operating parameter is less than the second preset threshold, the second judgment result is obtained by further comparing the first operating parameter with the corresponding first preset threshold process, and then the dewatering speed of the fabric treatment drum is controlled according to the second judgment result.

[0087] Specifically, the first judgment result refers to the result obtained by comparing the second operating parameter (vibration amplitude) with the second preset threshold, and the second judgment result refers to the result obtained by comparing the first operating parameter (current fluctuation component) with the first preset threshold. When controlling the dewatering speed of the fabric processing drum, the first judgment result, i.e., the vibration amplitude X, is given priority. t The result is compared with the second preset threshold R, and then the second judgment result is considered, that is, the current fluctuation component is compared with the first preset threshold ΔI. th The comparison results.

[0088] The second judgment result is also of two kinds: the first operating parameter is less than the first preset threshold, and the first operating parameter is greater than the first preset threshold.

[0089] When the first judgment result is that the second operating parameter is less than the second preset threshold, and the second judgment result is that the first operating parameter is less than the first preset threshold, a first control process is performed on the dewatering speed of the fabric processing drum. This first control process includes: increasing the dewatering speed of the fabric processing drum based on a stepped speed-up strategy, for example, increasing the speed of the fabric processing drum from... Figure 3 Within the range from the 0th speed to the 1st speed, and so on.

[0090] Specifically, when the vibration amplitude X t The current is less than the second preset threshold R and the current fluctuation component is less than the first preset threshold ΔI. th When the dewatering speed is reached, it indicates that the fabric processing drum is operating stably and the dewatering speed can continue to be increased according to the step-by-step speed-up strategy.

[0091] The first judgment result is that the second operating parameter is less than the second preset threshold R, and the first operating parameter is greater than the first preset threshold ΔI. th At that time, the dewatering speed of the fabric treatment drum is controlled by a third process.

[0092] The third control process includes: reducing the dewatering speed of the fabric treatment drum from the speed in the current acceleration stage to the speed in the previous acceleration stage, and re-judging the first judgment result.

[0093] Specifically, when the vibration amplitude is less than the second preset threshold but the current fluctuation component is greater than or equal to the first preset threshold, it indicates that although the fabric processing drum is operating relatively stably, there is still a certain risk, such as the fabric processing drum entering a high vibration state or having entered the resonance region. At this time, the dewatering speed should be reduced to the speed of the previous acceleration stage. For example, if the speed of the fabric processing drum is at the second acceleration stage (corresponding to...) Figure 3 The first rotational speed in the process is controlled to decrease the rotational speed of the fabric processing drum to the first acceleration stage (corresponding to the first acceleration stage). Figure 3 The second rotation speed is then used to determine whether the vibration amplitude is less than the second preset threshold.

[0094] In the above example, by setting a dual judgment mechanism of safe distance limit and current fluctuation threshold, the control can be optimized at the software level. The motor operating parameters and speed-up strategy can be dynamically adjusted according to the judgment results. When the vibration amplitude exceeds the safe distance or the current fluctuation value exceeds the second preset threshold, the speed is reduced to the safe speed or the previous speed level, which effectively reduces the noise of the fabric processing equipment in the dewatering process, improves the user experience, and enhances the stability and reliability of the fabric processing equipment.

[0095] In some embodiments, the priority of the first judgment result is greater than the priority of the second judgment result. That is, in the process of judging the operating parameters, the first judgment result is judged first. Only when the first judgment result is yes, that is, under the premise that the fabric processing drum will not collide during operation, the dewatering speed of the fabric processing drum is logically controlled by the second judgment result. Thus, the dewatering efficiency can be effectively guaranteed while greatly reducing the noise of the fabric processing drum during operation.

[0096] like Figures 1 to 4 As shown, in some embodiments, a second operating parameter is determined based on the first operating parameter to quantify the vibration of the fabric treatment cylinder, including:

[0097] The second operating parameter is determined based on the mapping relationship between the first operating parameter and the second operating parameter under the current operating state of the fabric processing drum. The current operating state of the fabric processing drum includes the garment load state and the speed-up stage. During the operation of the dehydration program, the mapping relationship between the second operating parameter and the first operating parameter is different under different load states and different speed-up stages.

[0098] The preset model can be a mapping database of the current fluctuation components of multiple motors and the corresponding vibration amplitudes. The current fluctuation components and their corresponding vibration amplitudes are obtained when the prototype runs the dehydration program under different load conditions and different speed conditions. The different load conditions include at least three states: no load, half load, and full load.

[0099] Specifically, an empty state means that there is no fabric in the fabric processing tube, a half-load state means that the weight of the fabric in the fabric processing tube is about half of the rated capacity, and a full-load state means that the weight of the fabric in the fabric processing tube is close to or reaches the rated capacity.

[0100] The dehydration control method also includes: establishing a mapping relationship under different fabric treatment drum operating conditions in the following way, that is, the process of establishing the mapping database includes: performing regression analysis on the current fluctuation component and the corresponding vibration amplitude, and establishing multiple mapping relationships based on the calibration equation.

[0101] The mapping relationships are optimized using linear regression and / or machine learning algorithms to determine the initial mapping database. The initial mapping database is then trained using historical data to establish the final mapping database. The historical data includes at least the current signal and vibration data of the motor under different fabric types, fabric weights, and water levels during the dehydration process.

[0102] In one example, the dewatering process is run at different speed steps under different load conditions (no load, half load, full load) of the fabric processing equipment. The vibration amplitude X of the system at different motor speeds ω is collected by an accelerometer. At the same time, the effective current fluctuation component ΔI is extracted from the real-time current signal I(t) of the motor by a current sensor.

[0103] A mapping database was established between the effective current fluctuation component ΔI and the corresponding vibration amplitude X for regression analysis. Simultaneously, multiple mapping relationships were established through calibration equations, as follows:

[0104]

[0105] Among them, A n Let F(X, I) represent the current harmonic amplitude, and k1, k2, and b be fitting coefficients. The values ​​of k1, k2, and b are related to the operating state of the fabric treatment cylinder, simplified to F(X, I), where ΔI represents the first operating parameter and X represents the second operating parameter. Accumulated multi-cycle operating data are used to optimize the mapping relationships corresponding to each calibration equation through linear regression or machine learning algorithms (such as random forest), thereby determining the initial mapping database.

[0106] Finally, the initial mapping database is trained based on historical data to improve data accuracy, thereby establishing the mapping database.

[0107] like Figures 1 to 4 As shown, in some embodiments, the fabric processing equipment includes an accelerometer and a current sensor. The accelerometer is used to acquire the vibration amplitude of the motor at different speeds. The current sensor is used to acquire the motor's current signal in real time, wherein the current fluctuation component is obtained based on the extraction of the current signal.

[0108] Specifically, the accelerometer can be mounted on the motor housing or the support structure of the fabric treatment tube to detect vibrations in the motor or the fabric treatment tube. The current sensor can be mounted on the motor's power supply line to detect changes in the motor's current.

[0109] An exemplary embodiment of this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the dehydration control method as described in any of the above embodiments.

[0110] This electronic device can be a control unit for fabric processing equipment, used to control the operation of the fabric processing equipment. The memory stores the computer program, and the processor executes the computer program to control the dewatering speed of the fabric processing drum.

[0111] An exemplary embodiment of this application provides a fabric treatment apparatus that is controlled by a dehydration control method as described in any of the above embodiments, or includes the electronic equipment described in the above embodiments.

[0112] The fabric processing equipment can be a washing machine, dryer, or washer-dryer combo, or any other device capable of dehydrating fabrics. The equipment includes a fabric processing drum and a motor, which determines the dehydration program running on the drum. The equipment also includes an accelerometer and a current sensor; the accelerometer collects the vibration amplitude of the motor at different speeds, and the current sensor acquires the motor's current signal in real time.

[0113] The control unit of the fabric processing equipment can be the electronic device described in the above embodiment, used to control the dewatering speed of the fabric processing drum. The control unit receives signals from the acceleration sensor and the current sensor, and controls the dewatering speed of the fabric processing drum based on these signals to achieve a safe and efficient dewatering process.

[0114] In the above example, the dehydration control method includes: in the dehydration process, increasing the dehydration speed of the fabric processing drum based on a stepped speed-up strategy, wherein the stepped speed-up strategy includes multiple consecutive speed-up stages; during the speed-up process, acquiring a first operating parameter of the motor, the first operating parameter being used to reflect the vibration of the fabric processing drum; determining a second operating parameter quantifying the vibration of the fabric processing drum based on the first operating parameter; and controlling the dehydration speed of the fabric processing drum based on a first judgment result of the second operating parameter and a second preset threshold and a second judgment result of the first operating parameter and the first preset threshold.

[0115] In this example, two operating parameters with a mapping relationship are used: the first operating parameter (current fluctuation component) and the second operating parameter (vibration amplitude X).t This method dynamically adjusts the speed increase of the fabric processing drum, improving dewatering efficiency while reducing noise, and effectively enhancing the stability and reliability of the fabric processing drum during dewatering. Specifically, based on software control, the control unit dynamically senses the vibration state of the fabric processing drum by monitoring the motor's current signal in real time. Based on the monitoring results, it adjusts the motor's operating parameters in real time, thereby achieving real-time suppression of vibration and dynamic adjustment of the speed increase strategy during dewatering. This method requires no additional hardware investment and can be implemented through software upgrades on existing equipment, offering advantages such as low cost and high feasibility, while effectively reducing dewatering noise.

[0116] The serial numbers in the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0117] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0118] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dehydration control method applied to a fabric processing device, the fabric processing device comprising a fabric processing drum and a motor, the motor being used to drive the fabric processing drum to rotate, characterized in that, The dehydration control method includes: In the dehydration process, the dehydration speed of the fabric treatment drum is increased based on a stepped speed-up strategy, which includes multiple speed-up stages. During the acceleration phase, the first operating parameters of the motor are obtained, and the first operating parameters are used to characterize the vibration of the fabric treatment cylinder; A second set of operating parameters is determined based on the first set of operating parameters to quantify the vibration of the fabric treatment cylinder. Based on the second operating parameters, a prediction is made as to whether there is a risk of collision with the cylinder during the dehydration acceleration process.

2. The dehydration control method according to claim 1, characterized in that, The prediction of whether there is a risk of cylinder collision during the dehydration acceleration process based on the second operating parameters includes: The first judgment result is obtained by comparing the second operating parameter with its corresponding second preset threshold at least once. Wherein, when the first judgment result is that the second operating parameter is greater than or equal to the second preset threshold, it is considered that there is a risk of collision with the drum, and the dehydration speed of the fabric processing drum is subjected to a second control process; The second control process includes: reducing the dewatering speed of the fabric treatment drum to the speed of the first speed-up stage in the plurality of consecutive speed-up stages, and controlling the dewatering speed of the fabric treatment drum to re-enter the dewatering speed-up stage based on the stepped speed-up strategy.

3. The dehydration control method according to claim 2, characterized in that, The method of predicting whether there is a risk of cylinder collision during the dehydration acceleration process based on the second operating parameters also includes: When the first judgment result is that the second operating parameter is less than the second preset threshold, the dehydration speed of the fabric processing drum is further controlled according to the second judgment result of the first operating parameter and the corresponding first preset threshold.

4. The dehydration control method according to claim 3, characterized in that, The further step of controlling the dewatering speed of the fabric treatment drum based on the second judgment result of the first operating parameters and the corresponding first preset threshold includes: When the second determination result is that the first operating parameter is less than the first preset threshold, the dehydration speed of the fabric processing cylinder is subjected to the first control process. The first control process includes: controlling the dehydration speed of the fabric treatment drum to increase based on the stepped speed-up strategy.

5. The dehydration control method according to claim 4, characterized in that, The further step of controlling the dewatering speed of the fabric treatment drum based on the second judgment result of the first operating parameter and the corresponding first preset threshold also includes: When the second judgment result is that the first operating parameter is greater than the first preset threshold, the dehydration speed of the fabric processing cylinder is subjected to a third control process. The third control process includes: reducing the dewatering speed of the fabric processing drum from the speed in the current acceleration stage to the speed in the previous acceleration stage, re-acquiring the first operating parameters and the second operating parameters, and controlling the dewatering speed of the fabric processing drum based on the judgment result.

6. The dehydration control method according to claim 5, characterized in that, The second operating parameter includes at least the vibration amplitude of the motor at the current speed; The first operating parameter includes at least the current fluctuation component of the motor at the current speed; The second preset threshold is the safe distance when the fabric processing tube does not collide with the tube during operation; Each acceleration stage is provided with a first preset threshold, and the first preset threshold is the same in each acceleration stage.

7. The dehydration control method according to claim 6, characterized in that, The second operating parameter, determined based on the first operating parameter, to quantify the vibration of the fabric treatment cylinder, includes: The second operating parameter is determined based on the mapping relationship between the first operating parameter and the second operating parameter in the current operating state of the fabric processing drum. The current operating state of the fabric processing drum includes the garment load state and the acceleration stage. During the operation of the dehydration process, the mapping relationship between the second operating parameter and the first operating parameter differs under different load conditions and different acceleration stages.

8. The dehydration control method according to claim 7, characterized in that, The dehydration control method further includes: establishing the mapping relationship under different fabric treatment drum operating states using the following method: The calibration equation is obtained by performing regression analysis on the current fluctuation component and the corresponding vibration amplitude, and multiple initial mapping relationships are established based on the calibration equation. Based on historical data, the initial mapping relationships are optimized using linear regression and / or machine learning algorithms to obtain the mapping relationships. The historical data includes at least the current signal and vibration data of the motor under different fabric types, different fabric weights, and different water levels during the dehydration process.

9. The dehydration control method according to claim 8, characterized in that, The fabric processing equipment includes an acceleration sensor and a current sensor; The accelerometer is used to collect the vibration amplitude of the motor at different speeds; The current sensor is used to acquire the current signal of the motor in real time, wherein the current fluctuation component is obtained by extracting the current signal.

10. The dehydration control method according to claim 8, characterized in that, The mapping relationship satisfies: Among them, A n denoted as the current harmonic amplitude, k1, k2, and b are fitting coefficients, the values ​​of k1, k2, and b are related to the operating state of the fabric treatment tube, ΔI represents the first operating parameter, and X represents the second operating parameter.

11. An electronic device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the dehydration control method as described in any one of claims 1 to 10.

12. A fabric treatment device, characterized in that, The dehydration control is performed using any one of the dehydration control methods described in claims 1 to 10, or includes the electronic device described in claim 11.

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