Clothes weighing method and device of washing machine, washing machine and electronic equipment

Abstract

The invention provides a clothes weighing method and device of a washing machine, the washing machine and electronic equipment. The method comprises the steps of controlling a washing machine roller to rotate at a first rotating speed, and obtaining a rotating eccentric value of the washing machine roller at the first rotating speed; according to the rotation eccentric value, the washing machine roller is controlled to rotate at a higher speed and rotate at a lower speed according to a preset rule, the running time of the washing machine roller in the speed reduction process is obtained, and the preset rule is that the washing machine roller is controlled to increase the speed from the first rotating speed to a second rotating speed; the second rotating speed is the preset rotating speed upper limit value, and the third rotating speed is the rotating speed of the washing machine roller when the clothes are separated from the roller wall and collide with the roller; determining the weight of the clothes at least according to the second rotating speed, the third rotating speed, the rotating eccentric value and the running time. The problem that an existing washing machine weighing scheme for calculating the weight of clothes is low in calculation precision is solved.

Description

Technical Field

[0001] The present application relates to the technical field of laundry weighing for washing machines, and in particular to a laundry weighing method and device for washing machines, a washing machine, and an electronic device. Background Art

[0002] In modern life, weighing clothes is not only a basic operation in laundries and daily life at home, but also a vital part of ensuring the proper operation of washing equipment and improving washing efficiency. With the popularity and increasing frequency of washing machines, accurately measuring and controlling the weight of clothes can help prevent overloading, improve the efficiency of washing cycles, and extend the lifespan of washing machines. Therefore, accurate measurement of clothing weight has become particularly important.

[0003] Currently, clothing weighing relies on speed-up weighing technology, which samples motor current and power during the speed-up process and uses this power to calculate clothing mass. However, significant errors can occur during the current and power sampling process, with current deviations typically fluctuating around 10%, leading to significant errors in the calculated results. Summary of the Invention

[0004] The main purpose of the present application is to provide a method and device for weighing clothes in a washing machine, a washing machine and an electronic device, so as to at least solve the problem of low calculation accuracy of clothes weight calculation in existing washing machine weighing solutions.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a method for weighing clothes in a washing machine is provided, comprising: controlling the washing machine drum to increase its speed and rotate to a first speed, and obtaining the rotational eccentricity value of the washing machine drum at the first speed; according to the rotational eccentricity value, controlling the washing machine drum to increase its speed and decrease its speed according to a preset rule, and obtaining the operation time of the washing machine drum during the deceleration process, wherein the preset rule is to control the washing machine drum to increase its speed from a first speed to a second speed, and to control the washing machine drum to decrease its speed to a third speed after the washing machine drum reaches the second speed, the second speed being a preset speed upper limit, and the third speed being the speed of the washing machine drum when the clothes break away from the drum wall and hit the drum; and determining the weight of the clothes based on at least the second speed, the third speed, the rotational eccentricity value and the operation time.

[0006] Optionally, the weight of the clothes is determined at least based on the second speed, the third speed, the rotational eccentricity value and the operating time, including: obtaining the equivalent radius of the clothes and the inner diameter of the washing machine drum when the washing machine drum is rotating, wherein the equivalent radius of the clothes is the distance from the outer contour of the clothes to the central axis of the washing machine drum when the clothes are attached to the inner wall of the washing machine drum; determining the weight of the clothes based on the equivalent radius of the clothes, the inner diameter of the washing machine drum, the second speed, the third speed, the rotational eccentricity value and the operating time.

[0007] Optionally, determining the weight of the clothes according to the clothes equivalent radius, the inner diameter of the washing machine drum, the second speed, the third speed, the rotational eccentricity value, and the operation time includes: calculating the weight according to a weight calculation formula: , determine the weight of the clothes, wherein, is the electromagnetic coefficient, is the average speed of the washing machine drum during the deceleration process, is the speed reduction friction coefficient of the washing machine drum, is the weight of the clothing, is the second speed, is the third speed, T is the operating time, is the inner diameter of the washing machine drum, is the distance from the outer contour of the clothing to the central axis of the washing machine drum, It is the distance from the outer contour of the clothing to the central axis of the washing machine drum.

[0008] Optionally, before controlling the washing machine drum to increase its speed to the first rotational speed, the method further comprises: obtaining a static eccentricity value of the washing machine drum when the washing machine drum is in a stationary state.

[0009] Optionally, after obtaining the rotational eccentricity value of the washing machine drum at the first speed, the method further includes: determining whether the rotational eccentricity value is greater than the static eccentricity value; when the rotational eccentricity value is greater than the static eccentricity value, obtaining the current conductivity of the clothes, and determining the current water content of the clothes based on the current conductivity and a mapping relationship, the mapping relationship representing a mapping relationship between the conductivity and water content of the clothes; when the current water content is greater than a water content threshold, controlling the washing machine drum to slow down to a fourth speed to dehydrate the clothes until the current water content is less than the water content threshold, wherein the fourth speed is less than the first speed.

[0010] Optionally, in the process of controlling the washing machine drum to increase and decrease speed according to preset rules, the method further includes: obtaining the current eccentricity value of the washing machine drum during the process of increasing speed to the second speed, and determining whether the current eccentricity value is greater than the static eccentricity value; when the current eccentricity value is greater than the static eccentricity value, controlling the washing machine drum to decrease speed to a fourth speed to dehydrate the clothes.

[0011] Optionally, before determining the current moisture content of the clothing according to the current conductivity and the mapping relationship, the method further comprises: calculating the moisture content according to the moisture content formula: X=(W dry / (W wet -W dry ))×100%, determine the moisture content of the clothing, and simultaneously obtain the conductivity of the clothing, where X is the moisture content, W dry is the weight of dry clothes, W wet is the weight of wet clothes; and the mapping relationship is determined according to the water content and the conductivity.

[0012] According to another aspect of the present application, a clothing weighing device for a washing machine is provided, comprising: a first control unit, configured to control the washing machine drum to increase its speed and rotate to a first speed, and obtain a rotational eccentricity value of the washing machine drum at the first speed; a second control unit, configured to control the washing machine drum to increase and decrease its speed according to a preset rule based on the rotational eccentricity value, so as to obtain the operating time during which the clothing sticks to the inner wall of the washing machine drum during the deceleration process, wherein the preset rule is to control the washing machine drum to increase its speed from a first speed to a second speed, and when the washing machine drum reaches the second speed, to control the washing machine drum to decrease its speed to a third speed, wherein the third speed is the speed at which the clothing breaks away from the drum wall and hits the drum; a first determination unit, configured to determine the weight of the clothing based at least on the second speed, the third speed, the rotational eccentricity value and the operating time, wherein the weight is at least used to determine the drying time of the clothing.

[0013] According to another aspect of the present application, a washing machine is provided, comprising: a controller, wherein the controller is configured to execute any one of the laundry weighing methods for the washing machine.

[0014] According to another aspect of the present application, an electronic device is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing any one of the laundry weighing methods of the washing machine.

[0015] The technical solution of the present application is applied, by controlling the washing machine drum to increase its speed to a first speed, and obtaining the rotational eccentricity value of the washing machine drum at the first speed; according to the rotational eccentricity value, the washing machine drum is controlled to increase its speed and decrease its speed according to a preset rule, and the operation time of the washing machine drum during the deceleration process is obtained, wherein the preset rule is to control the washing machine drum to increase its speed from a first speed to a second speed, and to control the washing machine drum to decrease its speed to a third speed after reaching the second speed, the second speed being the preset speed upper limit, and the third speed being the speed of the washing machine drum when the clothes break away from the drum wall and hit the drum; the weight of the clothes is determined at least based on the second speed, the third speed, the rotational eccentricity value and the operation time. By dynamically monitoring the distribution of clothes in the drum, that is, through the rotational eccentricity of the clothes, the weight and distribution uniformity of the clothes can be more accurately assessed. After the washing machine drum is accelerated to a preset first speed, it is further increased to a second speed and then decelerated to a third speed. The time when the clothes adhere to the drum wall during the deceleration process can be captured, so that more accurate weight information can be obtained based on this time. This embodiment not only reduces the dependence on motor performance, but also can adjust the weighing strategy in real time to ensure the accuracy of the weighing results, solving the problem of low calculation accuracy of clothing weight calculation in existing washing machine weighing solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0017] Figure 1 A hardware structure block diagram of a mobile terminal for executing a laundry weighing method for a washing machine provided in an embodiment of the present application is shown;

[0018] Figure 2 A schematic flow chart of a method for weighing clothes in a washing machine according to an embodiment of the present application is shown;

[0019] Figure 3 A schematic diagram showing an equivalent radius of clothing provided according to an embodiment of the present application is shown;

[0020] Figure 4 A schematic flow chart of a laundry weighing method for a specific washing machine according to an embodiment of the present application is shown;

[0021] Figure 5 shows a schematic diagram of eccentricity values of clothing distribution provided according to an embodiment of the present application;

[0022] Figure 6 A structural block diagram of a clothes weighing device for a washing machine provided according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] As introduced in the background technology, the existing washing machine weighing solution has low calculation accuracy for calculating the weight of clothes. In order to solve the problem of low calculation accuracy for calculating the weight of clothes in the existing washing machine weighing solution, the embodiments of the present application provide a washing machine clothing weighing method, device, washing machine and electronic device.

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for a laundry weighing method of a washing machine according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1Only one is shown) a processor 102 (the processor 102 may include but is not limited to a microprocessor MCU or a programmable logic device FPGA and other processing devices) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0029] The memory 104 can be used to store computer programs, such as software programs and modules of application software, such as the computer program corresponding to the laundry weighing method for a washing machine in an embodiment of the present invention. The processor 102 executes the computer programs stored in the memory 104 to execute various functional applications and data processing, thereby implementing the above-mentioned method. The memory 104 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of such networks may include a wireless network provided by the mobile terminal's telecommunications provider. In one example, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0030] In this embodiment, a method for weighing clothes in a washing machine running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0031] Figure 2 FIG. 1 is a flow chart of a laundry weighing method for a washing machine according to an embodiment of the present application. Figure 2 As shown, the method includes the following steps:

[0032] Step S201, controlling the washing machine drum to increase its speed to a first speed, and obtaining a rotational eccentricity value of the washing machine drum at the first speed;

[0033] Among them, the first speed is the speed at which the clothes stick to the inner wall of the washing machine drum. According to experiments, when the rotation speed exceeds 60 revolutions per minute, the clothes are already stuck to the inner wall of the drum. Therefore, the first speed can be set to 60 revolutions per minute.

[0034] Step S202, based on the rotational eccentricity value, controlling the washing machine drum to increase and decrease its speed according to a preset rule, and obtaining the operating time of the washing machine drum during the deceleration process, wherein the preset rule is to control the washing machine drum to increase its speed from a first speed to a second speed, and then control the washing machine drum to decrease its speed to a third speed after reaching the second speed, wherein the second speed is a preset speed upper limit, and the third speed is the speed of the washing machine drum when the laundry breaks away from the drum wall and hits the drum;

[0035] Among them, the second speed is the maximum speed for weighing clothes, which is set according to the clothing weighing requirements. For example, it can be set to 120 revolutions per minute, 150 revolutions per minute, etc.; the third speed is the speed when the clothes break away from the inner wall of the washing machine drum and hit the drum. The specific size of the third speed can be determined according to the change of the eccentricity value of the washing machine drum.

[0036] Specifically, after the washing machine drum is accelerated to a preset first speed, the speed of the washing machine drum is further increased to a second speed and then decelerated to a third speed. The time that the clothes adhere to the drum wall during the deceleration process (from the second speed to the third speed), that is, the running time, can be captured for subsequent weight calculation, avoiding the problem of current oscillation when calculating the weight of clothes based on the motor operating parameters in the existing technology, which leads to large errors in the calculation of the weight of clothes.

[0037] Step S203 , determining the weight of the clothes at least based on the second rotation speed, the third rotation speed, the rotation eccentricity value, and the operation time.

[0038] Through this embodiment, by applying the above-mentioned steps S201, S202 and S203, by dynamically monitoring the distribution of the clothes in the drum, that is, through the rotational eccentricity value of the clothes, the weight and distribution uniformity of the clothes can be more accurately evaluated. After the washing machine drum is accelerated to a preset first speed, it is further increased to a second speed and then decelerated to a third speed. The time when the clothes adhere to the drum wall during the deceleration process can be captured, so that more accurate weight information can be obtained based on this time. This embodiment not only reduces the dependence on motor performance, but also can adjust the weighing strategy in real time to ensure the accuracy of the weighing results, thereby solving the problem of low calculation accuracy of the laundry weight calculated by the existing washing machine weighing scheme.

[0039] During the specific implementation process, the weight of the above-mentioned clothes is determined at least based on the above-mentioned second speed, the above-mentioned third speed, the above-mentioned rotational eccentricity value and the above-mentioned operation time, including: obtaining the equivalent radius of the clothes and the inner diameter of the washing machine drum when the above-mentioned washing machine drum is rotating, wherein the above-mentioned clothes equivalent radius is the distance from the outer contour of the above-mentioned clothes to the central axis of the above-mentioned washing machine drum when the above-mentioned clothes are attached to the inner wall of the above-mentioned washing machine drum; the weight of the above-mentioned clothes is determined based on the above-mentioned clothes equivalent radius, the inner diameter of the above-mentioned washing machine drum, the above-mentioned second speed, the above-mentioned third speed, the above-mentioned rotational eccentricity value and the above-mentioned operation time.

[0040] By calculating the equivalent radius of the clothes and the inner diameter of the drum, this method can more accurately estimate the filling level and distribution of clothes in the drum, which is a key step in determining the weight of clothes. The introduction of the concept of the equivalent radius of clothes can quantify the shape and position of clothes in the drum, thereby more accurately calculating their weight. Combined with the speed and operating time of the drum, this technical solution can effectively distinguish the dryness and wetness of clothes and the uniformity of distribution, solving the problem of complex variables commonly encountered in clothing weight measurement. This technical solution includes but is not limited to the use of high-precision sensors to measure the equivalent radius of clothes, and the use of machine learning algorithms to optimize the weight calculation model to adapt to different types of clothes and washing conditions.

[0041] Specifically, determining the weight of the clothes according to the clothes equivalent radius, the inner diameter of the washing machine drum, the second speed, the third speed, the rotational eccentricity value, and the operation time includes: calculating the weight according to a weight calculation formula: , determine the weight of the above clothes, where, is the electromagnetic coefficient, is the average speed of the washing machine drum during the deceleration process, is the friction coefficient of the washing machine drum speed reduction, is the weight of the above clothes, is the second speed mentioned above, is the third speed, T is the operating time, is the inner diameter of the washing machine drum, is the distance from the outer contour of the above-mentioned clothes to the central axis of the above-mentioned washing machine drum, It is the distance from the outer contour of the above-mentioned clothes to the central axis of the above-mentioned washing machine drum.

[0042] in, 、 and The value of Figure 3 shown.

[0043] The application of this method's weight calculation formula is the core of this technical solution, taking into account the physical properties of the drum and the dynamic behavior of the clothing. The electromagnetic coefficient reflects the electromagnetic characteristics of the motor, while the speed reduction friction coefficient reflects the influence of friction within the drum. The precise measurement and appropriate setting of these parameters are crucial to improving weighing accuracy. By analyzing the process of the drum slowing down from the second to the third speed, combined with the measurement of the equivalent radius of the clothing and the inner diameter of the drum, a highly accurate weight estimation model can be constructed, effectively solving the weighing problems caused by changes in clothing type and load.

[0044] More specifically, before controlling the washing machine drum to increase its speed to the first rotational speed, the method further includes: obtaining a static eccentricity value of the washing machine drum when the washing machine drum is in a stationary state.

[0045] This method obtains the static eccentricity value of the washing machine drum (containing clothes) when it is stationary, and collects the rotational eccentricity value during the rotation of the washing machine drum. By comparing the rotational eccentricity value with the static eccentricity value, it can accurately determine whether the clothes have hit the drum, thereby improving the accuracy of clothing weighing.

[0046] Furthermore, after obtaining the rotational eccentricity value of the washing machine drum at the first speed, the method further includes: determining whether the rotational eccentricity value is greater than the static eccentricity value; when the rotational eccentricity value is greater than the static eccentricity value, obtaining the current conductivity of the clothes, and determining the current water content of the clothes based on the current conductivity and the mapping relationship, the mapping relationship representing the mapping relationship between the conductivity and water content of the clothes; when the current water content is greater than the water content threshold, controlling the washing machine drum to slow down to a fourth speed to dehydrate the clothes until the current water content is less than the water content threshold, wherein the fourth speed is less than the first speed.

[0047] Among them, the water content threshold and the fourth speed can be set according to specific weighing requirements. For example, the fourth speed can be set to 30 revolutions per minute;

[0048] This method is a protective measure for washing machine weighing. By comparing the rotating eccentricity value and the static eccentricity value, it can be determined whether the clothes are evenly distributed on the inner wall of the washing machine drum during rotation, avoiding uneven distribution and excessive eccentricity, which may lead to inaccurate subsequent clothing weighing.

[0049] Furthermore, in the process of controlling the washing machine drum to increase and decrease speed according to preset rules, the method also includes: obtaining the current eccentricity value of the washing machine drum during the process of increasing speed to the second speed, and determining whether the current eccentricity value is greater than the static eccentricity value; when the current eccentricity value is greater than the static eccentricity value, controlling the washing machine drum to decrease speed to a fourth speed to dehydrate the clothes.

[0050] This method monitors the eccentricity changes during the speed increase process in real time, promptly identifying uneven laundry distribution and implementing appropriate dehydration measures. This prevents inaccurate run times during rotation, which can lead to significant deviations in subsequent laundry weighing calculations. It also prevents safety hazards and mechanical wear caused by drum imbalance. This dynamic adjustment mechanism not only improves the safety and stability of the washing process, but also optimizes energy management and avoids unnecessary electricity consumption.

[0051] Specifically, before determining the current moisture content of the clothes according to the current conductivity and mapping relationship, the method further includes: calculating the moisture content according to the moisture content formula: X=(W dry / (W wet -W dry ))×100%, determine the water content of the clothes, and simultaneously obtain the conductivity of the clothes, where X is the water content, W dry is the weight of dry clothes, W wet is the weight of wet clothes; the mapping relationship is determined according to the water content and the conductivity.

[0052] This method can determine the mapping relationship between water content and conductivity, so that the water content of clothes can be determined by measuring the conductivity of clothes during the rotation of the washing machine drum. The water content of clothes during the rotation of the washing machine drum can be accurately obtained to avoid excessive water content of clothes and the occurrence of drum collision.

[0053] In addition, this embodiment also includes an intelligent dynamic deceleration curve adjustment mechanism. In addition to weighing clothes based on a fixed deceleration pattern, this feature introduces intelligent dynamic deceleration curve adjustment. This feature uses a machine learning algorithm to predict the optimal deceleration curve based on a large amount of previously collected clothing weight data and corresponding behavioral characteristics during the deceleration process (such as the rate of change of eccentricity, clothing adhesion time, motor feedback, etc.). The system monitors the distribution and moisture content of the clothes in the drum in real time and automatically adjusts the deceleration rate to ensure that the clothes adhere smoothly to the wall within a safe range while optimizing energy consumption during the deceleration process. Compared with the traditional fixed deceleration mode, the intelligent dynamic deceleration curve adjustment significantly reduces the risk of drum collision caused by improper deceleration, while also reducing energy consumption during the washing process and improving washing efficiency. By precisely matching the deceleration curve, the accuracy of clothing weighing is ensured, while also extending the lifespan of the washing machine and improving the user experience.

[0054] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the laundry weighing method of the washing machine of the present application will be described in detail below with reference to specific embodiments.

[0055] This embodiment relates to a specific method for weighing clothes in a washing machine. First, the principle of the method is analyzed. This embodiment is proposed based on the parameter of moment of inertia in the mechanical model. The fundamental reason is that for models of similar shapes, the greater the moment of inertia, the longer it takes to stop from high speed. The moment of inertia is directly related to the mass. Therefore, if the time it takes to stop from high speed to low speed is known, the mass of the clothes can be directly calculated through the mechanical formula. Instead of indirectly measuring through parameters such as motor power, the error caused by large fluctuations in motor voltage and current is reduced. Figure 4 As shown, including the following:

[0056] The weight of the clothes is weighed by slowing down, and the eccentricity and conductivity at rest are used to determine whether the problem of hitting the barrel may occur during the speed increase process. Therefore, it is necessary to measure the limit value of the conductivity at rest in advance to determine what conductivity value may cause the problem of hitting the barrel when the eccentricity is high. The diagram of the eccentricity of the clothes distribution is too large and the eccentricity is normal as shown below. Figure 5 shown.

[0057] Measure the weight of the clothes after drying, record it as W dry , measure the weight of the wet clothes again, record it as W wet ; Water content of clothes after wetting (%) = (W dry / (W wet -W dry )) × 100%; then, based on the measured conductivity L, a graph is drawn showing the relative relationship between moisture content and conductivity. Moisture content and conductivity are positively correlated.

[0058] Clothes speed-up process: First, according to experiments, when the rotation speed exceeds 60 rpm, the clothes will already stick to the outer wall of the drum. At this time, the rotational inertia of the clothes can be analogously added to the rotational inertia of the drum. Therefore, the clothing speed-up process is as follows:

[0059] 1. Slowly increase the speed until the clothes stick to the wall. In this state, the clothes slowly stick to the wall, but due to the slow rising speed, the eccentricity will be relatively low, which is closer to the ideal state (clothes are evenly distributed on the surface of the drum wall).

[0060] 2. Measure the eccentricity when increasing the speed. If the measured eccentricity is large, use the eccentricity and moisture content as the two parameters to determine whether the drum collision phenomenon may occur. If it is possible, reduce the speed and re-enter the washing speed reduction and weighing process.

[0061] 3. Rapidly increase the speed to the maximum speed for clothing weighing. Due to the slow increase in stage 1, the eccentricity of the clothing has changed little at this time. To accumulate sufficient inertia and improve the resolution of the deceleration time, increase the speed of the clothing at this time to extend the deceleration time.

[0062] 4. Reduce the speed from the highest speed to the lowest speed, and record the time it takes to reduce the speed to the lowest speed to complete the subsequent weight calculation.

[0063] Finally, according to the weight calculation formula: , determine the weight of the clothing, where is the electromagnetic coefficient, is the average speed of the washing machine drum during the deceleration process, is the friction coefficient of the washing machine drum during deceleration, is the weight of the clothing, The maximum speed for weighing clothes. is the minimum speed for weighing clothes, T is the running time, that is, Reduce speed to time, is the inner diameter of the washing machine drum, The distance from the outer contour of the clothes to the center axis of the washing machine drum, is the distance from the outer contour of the clothes to the center axis of the washing machine drum, where 、 and The value of Figure 3 shown.

[0064] This embodiment uses a speed-up-then-speed-down configuration for the drum washing machine. At the beginning of weighing, the moisture content of the laundry is measured, and then the need for a speed-up protection mechanism is determined based on the moisture content. This prevents the drum from being hit by excessive weight, increases the chances of successful speed-down weighing, and enhances laundry weighing accuracy.

[0065] The embodiment of the present application also provides a laundry weighing device for a washing machine. It should be noted that the laundry weighing device for a washing machine in the embodiment of the present application can be used to execute the laundry weighing method for a washing machine provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred embodiments, and the details that have been described will not be repeated here. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0066] The following is an introduction to the clothes weighing device of the washing machine provided in the embodiment of the present application.

[0067] Figure 6 Schematic diagram of a laundry weighing device for a washing machine according to an embodiment of the present application. Figure 6 As shown, the device includes:

[0068] A first control unit 61 is configured to control the washing machine drum to increase its speed to a first rotational speed and obtain a rotational eccentricity value of the washing machine drum at the first rotational speed;

[0069] a second control unit 62 for controlling the washing machine drum to increase and decrease its speed according to a preset rule based on the rotational eccentricity value, so as to obtain the operating time during which the clothes stick to the inner wall of the washing machine drum during the deceleration process, wherein the preset rule is to control the washing machine drum to increase its speed from a first speed to a second speed, and when the washing machine drum reaches the second speed, to control the washing machine drum to decrease its speed to a third speed, wherein the third speed is a speed at which the clothes break away from the drum wall and hit the drum;

[0070] The first determining unit 63 is used to determine the weight of the clothes at least according to the second rotation speed, the third rotation speed, the rotation eccentricity value and the operation time, and the weight is at least used to determine the drying time of the clothes.

[0071] In this embodiment, the first control unit is used to control the washing machine drum to increase its speed and rotate to a first speed, and obtain the rotational eccentricity value of the washing machine drum at the first speed; the second control unit is used to control the washing machine drum to increase and decrease its speed according to a preset rule based on the rotational eccentricity value, so as to obtain the operating time during which the clothes stick to the inner wall of the washing machine drum during the deceleration process, wherein the preset rule is to control the washing machine drum to increase its speed from the first speed to the second speed, and when the washing machine drum reaches the second speed, control the washing machine drum to decrease its speed to a third speed, and the third speed is the speed at which the clothes break away from the drum wall and hit the drum; the first determination unit is used to determine the weight of the clothes based on at least the second speed, the third speed, the rotational eccentricity value and the operating time, and the weight is at least used to determine the drying time of the clothes. By dynamically monitoring the distribution of clothes in the drum, that is, through the rotational eccentricity of the clothes, the weight and distribution uniformity of the clothes can be more accurately assessed. After the washing machine drum is accelerated to a preset first speed, it is further increased to a second speed and then decelerated to a third speed. The time when the clothes adhere to the drum wall during the deceleration process can be captured, so that more accurate weight information can be obtained based on this time. This embodiment not only reduces the dependence on motor performance, but also can adjust the weighing strategy in real time to ensure the accuracy of the weighing results, solving the problem of low calculation accuracy of clothing weight calculation in existing washing machine weighing solutions.

[0072] As an optional solution, the first determination unit includes a first acquisition module and a first determination module; the first acquisition module is used to obtain the equivalent radius of the clothes and the inner diameter of the washing machine drum when the washing machine drum is rotating, wherein the equivalent radius of the clothes is the distance from the outer contour of the clothes to the center axis of the washing machine drum when the clothes are attached to the inner wall of the washing machine drum; the first determination module is used to determine the weight of the clothes based on the equivalent radius of the clothes, the inner diameter of the washing machine drum, the second speed, the third speed, the rotation eccentricity value and the operating time.

[0073] Specifically, by calculating the equivalent radius of the laundry and the drum's inner diameter, the filling level and distribution of the laundry within the drum can be more accurately estimated—a key step in determining laundry weight. The introduction of the concept of equivalent radius quantifies the shape and position of the laundry within the drum, enabling a more precise calculation of its weight. Combined with the drum's speed and operating time, this method effectively distinguishes between wet and dry laundry and their distribution uniformity, resolving the complex variables often encountered in laundry weight measurement.

[0074] In an optional solution, the first determination module includes a determination submodule configured to calculate the weight according to the weight calculation formula: , determine the weight of the above clothes, where, is the electromagnetic coefficient, is the average speed of the washing machine drum during the deceleration process, is the friction coefficient of the washing machine drum speed reduction, is the weight of the above clothes, is the second speed mentioned above, is the third speed, T is the operating time, is the inner diameter of the washing machine drum, is the distance from the outer contour of the above-mentioned clothes to the central axis of the above-mentioned washing machine drum, It is the distance from the outer contour of the above-mentioned clothes to the central axis of the above-mentioned washing machine drum.

[0075] Specifically, the weight calculation formula comprehensively considers the physical properties of the drum and the dynamic behavior of the clothing. The electromagnetic coefficient reflects the electromagnetic characteristics of the motor, while the speed reduction friction coefficient reflects the influence of friction within the drum. Accurate measurement and appropriate setting of these parameters are crucial to improving weighing accuracy. By analyzing the process of the drum slowing down from the second to the third speed, combined with measurements of the equivalent radius of the clothing and the inner diameter of the drum, a highly accurate weight estimation model can be constructed, effectively addressing weighing challenges caused by variations in clothing type and load size.

[0076] In an optional solution, the device further includes a first acquisition unit for acquiring a static eccentricity value of the washing machine drum when the washing machine drum is in a stationary state before controlling the washing machine drum to increase its speed to the first rotational speed.

[0077] Specifically, the static eccentricity value of the washing machine drum (containing clothes) is obtained when it is stationary, and the rotational eccentricity value is collected during the rotation of the washing machine drum. By comparing the rotational eccentricity value with the static eccentricity value, it is possible to accurately determine whether the clothes have hit the drum, thereby improving the accuracy of clothing weighing.

[0078] In an optional solution, the device also includes a second determination unit, a third determination unit and a third control unit; the second determination unit is used to determine whether the rotational eccentricity value is greater than the static eccentricity value after obtaining the rotational eccentricity value of the washing machine drum at the first speed; the third determination unit is used to obtain the current conductivity of the clothes when the rotational eccentricity value is greater than the static eccentricity value, and determine the current water content of the clothes based on the current conductivity and the mapping relationship, the mapping relationship representing the mapping relationship between the conductivity and water content of the clothes; the third control unit is used to control the washing machine drum to slow down to a fourth speed when the current water content is greater than the water content threshold, so as to dehydrate the clothes until the current water content is less than the water content threshold, wherein the fourth speed is less than the first speed.

[0079] Specifically, this solution is a protective measure for washing machine weighing. By comparing the rotating eccentricity value and the static eccentricity value, it can be determined whether the clothes are evenly distributed on the inner wall of the washing machine drum during the rotation of the washing machine drum, avoiding uneven distribution and excessive eccentricity, which will lead to inaccurate subsequent clothing weighing.

[0080] In an optional solution, the device also includes a second acquisition unit and a fourth control unit; the second acquisition unit is used to obtain the current eccentricity value of the washing machine drum during the process of speeding up and down according to preset rules, and determine whether the current eccentricity value is greater than the static eccentricity value; the fourth control unit is used to control the washing machine drum to slow down to a fourth speed when the current eccentricity value is greater than the static eccentricity value, so as to dehydrate the clothes.

[0081] Specifically, real-time monitoring of eccentricity changes during the speed increase process can promptly detect uneven laundry distribution and take appropriate dehydration measures. This prevents inaccurate run times during rotation, which can lead to significant deviations in subsequent laundry weight calculations. It also prevents safety hazards and mechanical wear caused by drum imbalance. This dynamic adjustment mechanism not only improves the safety and stability of the washing process, but also optimizes energy management and avoids unnecessary electricity consumption.

[0082] In an optional solution, the device further includes a fourth determining unit and a fifth determining unit; the fourth determining unit is used to calculate the water content of the clothes according to the water content calculation formula: X=(W dry / (W wet -W dry ))×100%, determine the water content of the clothes, and simultaneously obtain the conductivity of the clothes, where X is the water content, W dry is the weight of dry clothes, W wet is the weight of wet clothes; and the fifth determining unit is used to determine the above mapping relationship according to the above water content and the above conductivity.

[0083] Specifically, the mapping relationship between water content and conductivity can be determined, so that the water content of the clothes can be determined by measuring the conductivity of the clothes during the rotation of the washing machine drum. The water content of the clothes during the rotation of the washing machine drum can be accurately obtained to avoid the phenomenon of clothes hitting the drum due to excessive water content.

[0084] The laundry weighing device for a washing machine includes a processor and a memory. The first control unit, the second control unit, and the first determination unit are all stored as program units in the memory. The processor executes the program units stored in the memory to implement the corresponding functions. The modules are all located in the same processor; alternatively, the modules can be located in different processors in any combination.

[0085] The processor includes a core, which retrieves the corresponding program unit from the memory. One or more cores can be set, and the problem of low calculation accuracy of laundry weight calculation in existing washing machine weighing solutions can be solved by adjusting the core parameters.

[0086] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0087] An embodiment of the present invention provides a washing machine, comprising: a controller, wherein the controller is configured to execute any one of the above-mentioned laundry weighing methods for the washing machine.

[0088] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program. When the program is run, the device where the computer-readable storage medium is located is controlled to execute the laundry weighing method for the washing machine.

[0089] An embodiment of the present invention provides a processor, which is used to run a program, wherein the laundry weighing method of the washing machine is executed when the program is run.

[0090] An embodiment of the present invention provides an electronic device comprising a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it implements at least the steps of the aforementioned laundry weighing method for a washing machine. The device herein may be a server, a PC, a PAD, a mobile phone, or the like.

[0091] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the steps of the laundry weighing method of the above-mentioned washing machine.

[0092] Obviously, those skilled in the art will appreciate that the various modules or steps of the present invention described above can be implemented using a general-purpose computing device, can be centralized on a single computing device, or can be distributed across a network of multiple computing devices. They can be implemented using program code executable by the computing device, and thus, can be stored in a storage device and executed by the computing device. In some cases, the steps shown or described herein can be performed in a different order than that shown, or can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0093] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0094] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0095] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0096] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0097] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0098] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0099] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can be implemented using any method or technology for information storage. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change RAM (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.

[0100] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0102] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for weighing clothes in a washing machine, characterized in that: include: Controlling the washing machine drum to increase its speed to a first rotational speed, and obtaining a rotational eccentricity value of the washing machine drum at the first rotational speed; According to the rotational eccentricity value, the washing machine drum is controlled to increase and decrease its speed according to a preset rule, and the operation time of the washing machine drum during the deceleration process is obtained, wherein the preset rule is to control the washing machine drum to increase its speed from a first speed to a second speed, and to control the washing machine drum to decrease its speed to a third speed after the washing machine drum reaches the second speed, the second speed being a preset speed upper limit, and the third speed being the speed of the washing machine drum when the clothes break away from the drum wall and hit the drum; The weight of the laundry is determined based on at least the second rotation speed, the third rotation speed, the rotation eccentricity value, and the operation time.

2. The method according to claim 1, characterized in that Determining the weight of the laundry based on at least the second rotation speed, the third rotation speed, the rotation eccentricity value, and the operation time includes: Obtaining an equivalent radius of clothing and an inner diameter of the washing machine drum when the washing machine drum is rotating, wherein the equivalent radius of clothing is the distance from the outer contour of the clothing to the central axis of the washing machine drum when the clothing is attached to the inner wall of the washing machine drum; The weight of the clothes is determined according to the clothes equivalent radius, the inner diameter of the washing machine drum, the second rotation speed, the third rotation speed, the rotation eccentricity value and the operation time.

3. The method according to claim 2, characterized in that Determining the weight of the clothes according to the clothes equivalent radius, the inner diameter of the washing machine drum, the second speed, the third speed, the rotational eccentricity value, and the operation time includes: Calculation formula based on weight: , determine the weight of the clothes, wherein, is the electromagnetic coefficient, is the average speed of the washing machine drum during the deceleration process, is the speed reduction friction coefficient of the washing machine drum, is the weight of the clothing, is the second speed, is the third speed, T is the operating time, is the inner diameter of the washing machine drum, is the distance from the outer contour of the clothing to the central axis of the washing machine drum, It is the distance from the outer contour of the clothing to the central axis of the washing machine drum.

4. The method according to claim 1, wherein Before controlling the washing machine drum to increase its speed to the first rotational speed, the method further includes: When the drum of the washing machine is in a stationary state, a stationary eccentricity value of the drum of the washing machine is obtained.

5. The method according to claim 4, characterized in that After obtaining the rotational eccentricity value of the washing machine drum at the first speed, the method further includes: determining whether the rotational eccentricity value is greater than the static eccentricity value; When the rotational eccentricity value is greater than the static eccentricity value, obtaining a current conductivity of the clothing, and determining a current moisture content of the clothing based on the current conductivity and a mapping relationship, wherein the mapping relationship represents a mapping relationship between the conductivity and the moisture content of the clothing; When the current water content is greater than the water content threshold, the washing machine drum is controlled to slow down to a fourth speed to dehydrate the clothes until the current water content is less than the water content threshold, wherein the fourth speed is less than the first speed.

6. The method according to claim 4, characterized in that In the process of controlling the washing machine drum to rotate at an increased speed and a decreased speed according to a preset rule, the method further includes: obtaining a current eccentricity value of the washing machine drum during the process of increasing the speed to the second speed, and determining whether the current eccentricity value is greater than the static eccentricity value; When the current eccentricity value is greater than the static eccentricity value, the washing machine drum is controlled to slow down to a fourth speed to dehydrate the clothes.

7. The method according to claim 5, characterized in that Before determining the current moisture content of the clothing according to the current conductivity and the mapping relationship, the method further includes: According to the water content calculation formula: X=(W dry / (W wet -W dry ))×100%, determine the moisture content of the clothing, and simultaneously obtain the conductivity of the clothing, where X is the moisture content, W dry is the weight of dry clothes, W wet is the weight of wet clothes; The mapping relationship is determined according to the water content and the electrical conductivity.

8. A laundry weighing device for a washing machine, characterized in that: include: a first control unit, configured to control the washing machine drum to increase its speed to a first rotational speed, and obtain a rotational eccentricity value of the washing machine drum at the first rotational speed; a second control unit, configured to control the washing machine drum to increase and decrease its speed according to a preset rule based on the rotational eccentricity value, so as to obtain the operating time during which the clothes stick to the inner wall of the washing machine drum during the deceleration process, wherein the preset rule is to control the washing machine drum to increase its speed from a first speed to a second speed, and when the washing machine drum reaches the second speed, control the washing machine drum to decrease its speed to a third speed, wherein the third speed is a speed at which the clothes break away from the drum wall and hit the drum; The first determining unit is used to determine the weight of the clothes at least according to the second rotation speed, the third rotation speed, the rotation eccentricity value and the operation time, and the weight is at least used to determine the drying time of the clothes.

9. A washing machine, characterized in that: include: A controller, wherein the controller is used to execute the laundry weighing method for a washing machine according to any one of claims 1 to 7.

10. An electronic device, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing the laundry weighing method of the washing machine according to any one of claims 1 to 7.

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