Pulsator washing machine, control method and control device therefor, and storage medium

Abstract

The application relates to the technical field of washing equipment, and provides a pulsator washing machine, a control method and a control device thereof and a storage medium, the pulsator washing machine comprises a box body and a washing drum arranged in the box body, the washing drum is installed on the box body through a suspension system, and a liquid balance ring is arranged above the washing drum; the control method comprises the following steps: controlling the washing drum to rotate at a first rotating speed; the first rotating speed is lower than a resonance rotating speed of the suspension system; acquiring a liquid level change condition in the liquid balance ring; determining an eccentricity value of clothes based on the liquid level change condition; and controlling a dehydration process of the pulsator washing machine based on the eccentricity value. When the rotating speed of the washing drum is relatively low (lower than the resonance rotating speed of the suspension system), the gathering direction of the liquid is in phase with the eccentricity of the clothes load, that is, the liquid gathers to the same side of the eccentricity of the clothes load, the liquid level change condition of the liquid balance ring is detected, the detection of the eccentricity value of the clothes is realized, the accuracy of the detection is improved, and support is provided for the subsequent dehydration process.

Description

Technical Field

[0001] This application belongs to the field of washing equipment technology, and in particular relates to a pulsator washing machine and its control method, control device and storage medium. Background Technology

[0002] In related technologies, drum washing machines use a horizontally placed washing drum. During the washing process, the load of clothes is periodically raised to a high point as the drum rotates, and then falls back to a low point. During this process, the uneven distribution of the load (i.e., eccentricity) causes fluctuations in the motor's electrical signal. Therefore, drum washing machines utilize these fluctuations in the motor's electrical signal to accurately detect the eccentricity of the load. However, the washing drum of a top-loading washing machine is vertically placed, and the load of clothes does not change during operation. Therefore, the method of using motor electrical signal fluctuations to detect eccentricity is not applicable to top-loading washing machines, and its accuracy is lower. Summary of the Invention

[0003] This application provides a control method, control device, pulsator washing machine, and storage medium for a pulsator washing machine, in order to solve the problem of low accuracy in existing eccentricity detection methods for pulsator washing machines.

[0004] In a first aspect, embodiments of this application provide a control method for a pulsator washing machine. The pulsator washing machine includes a cabinet and a washing drum disposed within the cabinet. The washing drum is mounted on the cabinet via a suspension system, and a liquid balance ring is installed above the washing drum. The control method includes:

[0005] The washing drum is controlled to rotate at a first rotational speed; wherein the first rotational speed is lower than the resonant rotational speed of the suspension system.

[0006] Obtain the liquid level change within the liquid balance loop;

[0007] Based on the changes in liquid level, the eccentricity value of the clothing is determined;

[0008] The spin-drying process of the pulsator washing machine is controlled based on the eccentricity value.

[0009] In some embodiments of this application, determining the eccentricity value of the clothing based on the liquid level change includes:

[0010] Determine the maximum value of the liquid level in the liquid balance ring during the rotation of the washing drum;

[0011] The eccentricity value is calculated based on the maximum value.

[0012] In some embodiments of this application, calculating the eccentricity value based on the maximum value includes:

[0013] The maximum value is matched with a preset mapping relationship to determine the eccentricity value; wherein, the preset mapping relationship is a pre-calibrated mapping relationship between the liquid level value and the eccentricity amount.

[0014] In some embodiments of this application, controlling the spin-drying process of the pulsator washing machine based on the eccentricity value includes:

[0015] If the eccentricity value is greater than the preset eccentricity threshold, the washing drum is controlled to perform a shaking program until the eccentricity value is less than or equal to the preset eccentricity threshold.

[0016] In some embodiments of this application, controlling the spin-drying process of the pulsator washing machine based on the eccentricity value further includes:

[0017] When the eccentricity value is less than or equal to the preset eccentricity threshold, the washing drum is controlled to dehydrate at a second rotation speed; wherein the second rotation speed is greater than the first rotation speed.

[0018] In some embodiments of this application, before controlling the washing tub to rotate at a first rotational speed, the method further includes:

[0019] The washing drum is controlled to perform a shaking program. After the shaking time reaches a preset time, the step of controlling the washing drum to rotate at a first speed is executed.

[0020] In some embodiments of this application, the first rotational speed is 20-50 prm; and / or, the liquid balance ring is a brine balance ring.

[0021] Secondly, embodiments of this application provide a control device for a pulsator washing machine. The pulsator washing machine includes a cabinet and a washing drum disposed within the cabinet. The washing drum is mounted on the cabinet via a suspension system, and a liquid balance ring is installed above the washing drum. The control device includes:

[0022] A first control module is used to control the washing drum to rotate at a first speed; wherein the first speed is lower than the resonant speed of the suspension system.

[0023] The acquisition module is used to acquire the liquid level changes within the liquid balance loop;

[0024] The determination module is used to determine the eccentricity value of the clothing based on the liquid level change.

[0025] The second control module is used to control the dehydration process of the pulsator washing machine based on the eccentricity value.

[0026] Thirdly, embodiments of this application provide a pulsator washing machine, comprising:

[0027] Box;

[0028] A washing drum is installed on the housing via a suspension system, and a liquid balance ring is installed above the washing drum;

[0029] Multiple liquid level sensors are installed at intervals along the circumference of the liquid balance ring to detect the liquid level height within the liquid balance ring.

[0030] The controller, connected to the liquid level sensor and the washing drum, is configured to execute the control method of the pulsator washing machine described in the above embodiments.

[0031] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control method for a pulsator washing machine as described in the above embodiments.

[0032] The control method for a pulsator washing machine provided in this application includes a cabinet and a washing drum disposed within the cabinet. The washing drum is mounted on the cabinet via a suspension system, and a liquid balance ring is installed above the washing drum. The control method includes: controlling the washing drum to rotate at a first rotational speed; wherein the first rotational speed is lower than the resonant rotational speed of the suspension system; acquiring the liquid level change within the liquid balance ring; determining the eccentricity value of the clothes based on the liquid level change; and controlling the spin-drying process of the pulsator washing machine based on the eccentricity value. By utilizing the fact that when the washing drum's rotational speed is low (lower than the resonant rotational speed of the suspension system), the direction of liquid accumulation is in phase with the eccentricity of the clothes load, i.e., the liquid will accumulate on the same side as the eccentricity of the clothes load. By detecting the liquid level change in the liquid balance ring, the eccentricity value of the clothes can be detected, thereby improving the accuracy of the detection and providing support for the subsequent spin-drying process. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0035] Figure 1 A flowchart illustrating the control method for a pulsator washing machine provided in this application embodiment. Figure 1 .

[0036] Figure 2 A flowchart illustrating the control method for a pulsator washing machine provided in this application embodiment. Figure 2 .

[0037] Figure 3 This is a schematic diagram of the control device for a pulsator washing machine provided in an embodiment of this application.

[0038] Figure 4 This is a schematic diagram of a pulsator washing machine in a stationary state, as provided in an embodiment of this application.

[0039] Figure 5 This is a schematic diagram of a pulsator washing machine at a first rotational speed, as provided in an embodiment of this application.

[0040] Figure 6 This is a schematic diagram of the arrangement of the liquid level sensor provided in an embodiment of this application.

[0041] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0042] Figure label:

[0043] 100. Container; 200. Washing drum; 300. Suspension system; 210. Liquid balance ring; 220. Liquid level sensor. Detailed Implementation

[0044] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0045] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0047] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] In a front-loading washing machine, the drum is horizontal with the clothes loading opening facing forward. As the clothes rotate against the drum, they are lifted to a higher position and then lowered again, repeating this process. During this height change, the motor's electrical signal fluctuates, and the amount of eccentricity is related to this fluctuation. Front-loading washing machines detect eccentricity by detecting these fluctuations. In contrast, top-loading washing machines are vertical with the clothes loading opening facing upward. As the clothes rotate against the wall, there is no height change from low to high. Therefore, using the fluctuations in the motor's electrical signal to detect eccentricity is unsuitable or less accurate for top-loading washing machines.

[0050] This application provides a pulsator washing machine and its control method, control device, and storage medium to solve the problem of low accuracy in existing eccentricity detection methods for pulsator washing machines. The following will be described in conjunction with the accompanying drawings. Figure 1-7 Please provide an explanation.

[0051] The control method for a pulsator washing machine provided in this application embodiment can be applied to pulsator washing machines. For example, refer to... Figures 4-6 As shown, the pulsator washing machine includes a cabinet 100 and a washing drum 200 disposed inside the cabinet 100. The washing drum 200 is installed in the cabinet 100 via a suspension system 300, and a liquid balance ring 210 is installed above the washing drum 200.

[0052] For example, the housing 100 is the main outer shell of the washing machine, and the washing drum 200 includes an inner drum and an outer drum. The inner drum is used to hold the clothes to be washed, and the outer drum is installed inside the housing 100 by a suspension rod. The washing drum 200 and the suspension rod form the suspension system 300 of the pulsator washing machine. The suspension system 300 can absorb and reduce the vibration generated by the rotation of the pulsator during the washing process, making the washing machine run more smoothly. For example, the washing drum 200 is supported on the housing 100 of the washing machine by the suspension rod. In addition, pulsator washing machines are usually equipped with a liquid balance ring 210. When the washing drum 200 rotates for spin-drying and reaches a certain rotation speed, the liquid in the liquid balance ring 210 will automatically gather on the side opposite to the eccentricity of the clothes load, automatically balancing the eccentricity of the clothes load.

[0053] It is understood that the liquid inside the liquid balance ring 210 can be water, salt water, or other liquids. In an optional embodiment, the liquid balance ring 210 is a salt water balance ring. Salt water has a higher density and a greater weight for the same volume, which facilitates load balancing of the pulsator washing machine.

[0054] Please see Figure 1 , Figure 1 This is a flowchart illustrating the control method for a pulsator washing machine provided in an embodiment of this application. The control method for the pulsator washing machine includes:

[0055] S101: Control the washing drum to rotate at a first speed; wherein, the first speed is lower than the resonant speed of the suspension system;

[0056] Understandably, when the washing drum is stationary and not rotating, the liquid level along the circumference within the liquid balance ring is uniform. When the washing drum rotates and reaches a certain speed (generally after the resonant speed of the top-loading washing machine's suspension system), the liquid automatically gathers towards the side opposite to the eccentric load of the clothes, automatically balancing the load imbalance. However, when the washing drum's speed is lower (before the resonant speed of the top-loading washing machine's suspension system), the direction of liquid gathering is in phase with the load imbalance, meaning the liquid gathers on the same side as the load imbalance. Therefore, this can be used to measure the eccentricity of the clothes.

[0057] In one alternative implementation, the first rotational speed is 20-50 revolutions per minute (RPM), such as 20 RPM, 30 RPM, 40 RPM, 50 RPM, etc.

[0058] Existing pulsator washing machines typically experience first-order modal resonance at 60 RPM. Therefore, when the first speed of a pulsator washing machine is set to 20-50 RPM, the resonance of the suspension system has not yet occurred. Due to the centrifugal force, the liquid will concentrate on the eccentric side of the washing drum.

[0059] S102: Obtain the liquid level change within the liquid balance loop;

[0060] For example, multiple liquid level sensors are arranged along the circumferential direction inside the liquid balance ring. While the washing drum rotates, the liquid level sensors record the changes in the liquid level inside the liquid balance ring in real time.

[0061] S103: Determine the eccentricity value of the clothing based on the liquid level change;

[0062] For example, a method for determining the eccentricity of clothing based on changes in liquid level may include: determining the maximum value of the liquid level in the liquid balance ring during the rotation of the washing drum; and calculating the eccentricity based on the maximum value.

[0063] Due to the eccentricity of the clothing, liquid will accumulate on the eccentric side, causing the liquid level sensor on that side to detect a higher liquid level. By detecting the maximum value of the liquid level in the liquid balance ring during the rotation of the washing drum, the magnitude of the clothing eccentricity can be measured. The larger the detected maximum liquid level value, the greater the eccentricity of the clothing load.

[0064] In this embodiment, the magnitude of the clothing eccentricity is determined by the maximum value of the liquid level height rather than the average value or other values, because the maximum value of the liquid level can better reflect the eccentricity of the clothing, so as to accurately calculate the eccentricity value.

[0065] For example, a method for calculating the eccentricity value based on the maximum value includes: matching the maximum value with a preset mapping relationship to determine the eccentricity value; wherein the preset mapping relationship is a pre-calibrated mapping relationship characterizing the liquid level value and the eccentricity amount.

[0066] It is understandable that the preset mapping relationship can be a table or a specific functional expression.

[0067] Specifically, during the design and manufacturing stages of the pulsator washing machine, a mapping table between liquid level values ​​and eccentricity is established beforehand through experiments and tests. This mapping table contains the correspondence between liquid level values ​​and eccentricity. The detected maximum liquid level value is compared with the liquid level values ​​in the mapping table to find the closest value. After finding a matching value, the corresponding eccentricity is directly read. If the detected maximum liquid level value does not have a direct corresponding value in the mapping table, an interpolation method can be used to calculate the eccentricity value.

[0068] For example, if the eccentricity values ​​in the mapping table are 2, 4, 6, 8, and 10 for liquid level heights of 10, 20, 30, 40, and 50 respectively, then when the detected maximum liquid level is 25, the two data points closest to 25 are found: 20 (corresponding to eccentricity 4) and 30 (corresponding to eccentricity 6). Therefore, the eccentricity = 4 + (25-20)*(6-4) / (30-20) = 5. Thus, based on the detected maximum liquid level, the eccentricity calculated through interpolation is 5.

[0069] S104: Controls the spin-drying process of the pulsator washing machine based on the eccentricity value.

[0070] After determining the eccentricity value of the clothes, the washing machine's control system adjusts the spin-drying process accordingly. If the eccentricity value is within an acceptable range, the washing machine can continue spinning at a higher speed. If the eccentricity value exceeds the safe range, the control system may automatically adjust the drum speed or redistribute the clothes through a specific tumbling program to reduce eccentricity, then re-check until the eccentricity value meets the requirements before resuming high-speed spin-drying.

[0071] For example, refer to Figure 2 As shown, based on the eccentricity value, the spin-drying process of the pulsator washing machine is controlled as follows: when the eccentricity value is greater than the preset eccentricity threshold, the washing drum is controlled to perform a shaking program until the eccentricity value is less than or equal to the preset eccentricity threshold.

[0072] Optionally, the shaking program may include controlling the washing drum to briefly rotate in the opposite direction, rotate at a different speed, or use a specific vibration mode, with the aim of redistributing the clothes in the washing drum and reducing eccentricity. The duration or number of shaking cycles can be determined based on the magnitude of the eccentricity and the specific design of the washing machine; this embodiment does not impose specific limitations on this.

[0073] Furthermore, when the eccentricity value is less than or equal to a preset eccentricity threshold, the washing drum is controlled to spin-dry at a second rotation speed; wherein the second rotation speed is greater than the first rotation speed, so as to achieve a highly efficient and rapid spin-drying effect. Optionally, the rotation speed of the second rotation speed can also be adaptively adjusted according to the detected eccentricity value, so as to maximize the spin-drying efficiency while ensuring spin-drying safety.

[0074] Furthermore, before controlling the washing drum to rotate at the first speed, the method also includes: controlling the washing drum to perform a shaking program, and after the shaking time reaches a preset time, executing the step of controlling the washing drum to rotate at the first speed, so as to ensure that the clothes are distributed as evenly as possible before detecting the eccentricity value, thereby improving the dehydration efficiency.

[0075] The control method for a pulsator washing machine provided in this application includes a cabinet and a washing drum disposed within the cabinet. The washing drum is mounted on the cabinet via a suspension system, and a liquid balance ring is installed above the washing drum. The control method includes: controlling the washing drum to rotate at a first rotational speed; wherein the first rotational speed is lower than the resonant rotational speed of the suspension system; acquiring the liquid level change within the liquid balance ring; determining the eccentricity value of the clothes based on the liquid level change; and controlling the spin-drying process of the pulsator washing machine based on the eccentricity value. By utilizing the fact that when the washing drum's rotational speed is low (lower than the resonant rotational speed of the suspension system), the direction of liquid accumulation is in phase with the eccentricity of the clothes load, i.e., the liquid will accumulate on the same side as the eccentricity of the clothes load. By detecting the liquid level change in the liquid balance ring, the eccentricity value of the clothes can be detected, thereby improving the accuracy of eccentricity detection and providing support for the subsequent spin-drying process.

[0076] Secondly, embodiments of this application provide a control device for a pulsator washing machine. The pulsator washing machine includes a cabinet and a washing drum disposed within the cabinet. The washing drum is mounted on the cabinet via a suspension system, and a liquid balance ring is installed above the washing drum. (Refer to...) Figure 3 As shown, the control device includes:

[0077] The first control module 301 is used to control the washing drum to rotate at a first speed; wherein the first speed is lower than the resonant speed of the suspension system.

[0078] The acquisition module 302 is used to acquire the liquid level changes within the liquid balance loop;

[0079] The determination module 303 is used to determine the eccentricity value of the clothing based on the liquid level change.

[0080] The second control module 304 is used to control the spin-drying process of the pulsator washing machine based on the eccentricity value.

[0081] It is understood that the control device can be used to execute the control method of the pulsator washing machine in the above embodiment to detect the eccentricity value of the clothes and control the dehydration process of the pulsator washing machine. This embodiment will not be described in detail here.

[0082] Thirdly, embodiments of this application provide a pulsator washing machine, combined with Figures 4-6 As shown, the pulsator washing machine includes a cabinet 100, a washing drum 200, a liquid level sensor 220, and a controller. The washing drum 200 is mounted on the cabinet 100 via a suspension system 300, and a liquid balance ring 210 is mounted above the washing drum 200. Multiple liquid level sensors 220 are installed at intervals along the circumference of the liquid balance ring 210 to detect the liquid level height within the liquid balance ring 210. The controller is connected to the liquid level sensors 220 and the washing drum 200 and is configured to execute the control method of the pulsator washing machine described in the above embodiment.

[0083] For example, multiple liquid level sensors 220 are evenly distributed at the bottom of the liquid balance ring 210 to ensure accurate liquid level detection during the washing process.

[0084] Figure 7 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 7 As shown, the electronic device may include a processor 701, a communication interface 702, a memory 703, and a bus 704. The processor 701, communication interface 702, and memory 703 communicate with each other via the communication bus 704. The processor 701 can call logic instructions stored in the memory 703 to execute the steps of the control method for the pulsator washing machine.

[0085] Furthermore, the logical instructions in the aforementioned memory 703 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory 703 (ROM), a random access memory 703 (RAM), a magnetic disk, or an optical disk.

[0086] On the other hand, this application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the control method of the pulsator washing machine provided in the above-described method embodiments.

[0087] In another aspect, embodiments of this application also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by processor 701, is implemented to perform the control method of the pulsator washing machine provided in the above embodiments.

[0088] Computer-readable storage media can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MOs), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0089] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0090] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0091] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those 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. Such 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 this application.

Claims

1. A control method for a pulsator washing machine, characterized in that, The pulsator washing machine includes a cabinet and a washing drum disposed within the cabinet. The washing drum is mounted on the cabinet via a suspension system, and a liquid balance ring is installed above the washing drum. The control method includes: The washing drum is controlled to rotate at a first rotational speed; wherein the first rotational speed is lower than the resonant rotational speed of the suspension system. Obtain the liquid level change within the liquid balance loop; Based on the changes in liquid level, the eccentricity value of the clothing is determined; The spin-drying process of the pulsator washing machine is controlled based on the eccentricity value.

2. The control method for a pulsator washing machine according to claim 1, characterized in that, Determining the eccentricity value of the clothing based on the liquid level change includes: Determine the maximum value of the liquid level in the liquid balance ring during the rotation of the washing drum; The eccentricity value is calculated based on the maximum value.

3. The control method for a pulsator washing machine according to claim 2, characterized in that, The calculation of the eccentricity value based on the maximum value includes: The maximum value is matched with a preset mapping relationship to determine the eccentricity value; wherein, the preset mapping relationship is a pre-calibrated mapping relationship between the liquid level value and the eccentricity amount.

4. The control method for a pulsator washing machine according to claim 1, characterized in that, The step of controlling the spin-drying process of the pulsator washing machine based on the eccentricity value includes: If the eccentricity value is greater than the preset eccentricity threshold, the washing drum is controlled to perform a shaking program until the eccentricity value is less than or equal to the preset eccentricity threshold.

5. The control method for a pulsator washing machine according to claim 4, characterized in that, The method of controlling the spin-drying process of the pulsator washing machine based on the eccentricity value further includes: When the eccentricity value is less than or equal to the preset eccentricity threshold, the washing drum is controlled to dehydrate at a second rotation speed; wherein the second rotation speed is greater than the first rotation speed.

6. The control method for a pulsator washing machine according to claim 1, characterized in that, Before controlling the washing drum to rotate at the first rotational speed, the method further includes: The washing drum is controlled to perform a shaking program. After the shaking time reaches a preset time, the step of controlling the washing drum to rotate at a first speed is executed.

7. The control method for a pulsator washing machine according to claim 1, characterized in that, The first rotational speed is 20-50 prm; and / or, the liquid balance ring is a brine balance ring.

8. A control device for a pulsator washing machine, characterized in that, The pulsator washing machine includes a cabinet and a washing drum disposed within the cabinet. The washing drum is mounted on the cabinet via a suspension system, and a liquid balance ring is installed above the washing drum. The control device includes: A first control module is used to control the washing drum to rotate at a first speed; wherein the first speed is lower than the resonant speed of the suspension system. The acquisition module is used to acquire the liquid level changes within the liquid balance loop; The determination module is used to determine the eccentricity value of the clothing based on the liquid level change. The second control module is used to control the dehydration process of the pulsator washing machine based on the eccentricity value.

9. A pulsator washing machine, characterized in that, include: Box; A washing drum is installed on the housing via a suspension system, and a liquid balance ring is installed above the washing drum; Multiple liquid level sensors are installed at intervals along the circumference of the liquid balance ring to detect the liquid level height within the liquid balance ring. A controller, connected to the liquid level sensor and the washing drum, is configured to perform the control method of the pulsator washing machine according to any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the control method for a pulsator washing machine as described in any one of claims 1-7.

Images