Spin-drying control method and apparatus for multi-drum washing device

Abstract

A spin-drying control method and apparatus for a multi-drum washing device. The spin-drying control method comprises: when a first target drum is executing a spin-drying program, monitoring operating states of other drums, and controlling the other drums to operate in states that do not affect spin-drying of the first target drum. The control method can effectively mitigate the problem of decreased eccentricity detection accuracy caused by eccentricity detection of multiple drums, thereby improving operational stability of the washing device.

Description

Dehydration control method and control device for multi-drum washing equipment

[0001] This application claims priority to Chinese Patent Application No. 202510323112.9, filed on March 18, 2025, entitled “Dehydration Control Method and Control Device for Multi-Tube Washing Equipment”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of washing equipment technology, specifically providing a dehydration control method and control device for a multi-drum washing equipment. Background Technology

[0003] Currently, as users demand greater convenience in laundry, multi-drum designs are increasingly being used in washing machines and other laundry equipment. Multi-drum designs allow the same washing equipment to process different types and more clothes at the same time, thus greatly improving the user experience.

[0004] During the spin-drying process of a washing machine, after the clothes are evenly distributed on the drum wall, an eccentricity detection is required to ensure that the clothes are evenly distributed within the drum. This not only ensures more thorough washing but also improves the stability of the washing machine's operation and extends its lifespan. However, in multi-drum washing machines, if multiple drums spin-dry simultaneously, the individual oscillations of the drums can affect the eccentricity detection process, leading to inaccurate load eccentricity detection. This can result in increased vibration during subsequent operation, or even drum collisions and displacement, affecting the washing machine's operational stability.

[0005] Accordingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0006] This application aims to solve the aforementioned technical problem, namely, how to improve the stability of multi-drum washing equipment during the dehydration process.

[0007] In a first aspect, this application provides a dehydration control method for a multi-drum washing machine, comprising:

[0008] While the first target roller is performing the dewatering process, the operating status of the other rollers is monitored, and the other rollers are controlled to operate in a manner that does not affect the dewatering of the first target roller.

[0009] In one technical solution of the above control method, the step of "controlling other drums to operate in a state that does not affect the dehydration of the first target drum" includes: when it is detected that the second target drum is about to perform a dehydration program, controlling the second target drum and the first target drum to perform a preset operation according to the mechanical connection method between the second target drum and the first target drum, so as to reduce the vibration of the washing equipment.

[0010] In one technical solution of the above control method, the step of "controlling the second target roller to perform a preset operation according to the mechanical connection method between the second target roller and the first target roller" includes:

[0011] When the second target roller and the first target roller are rigidly connected, the second target roller is controlled to wait or run at a low speed.

[0012] After the first target roller completes the dehydration process, the second target roller is controlled to execute the dehydration process; and / or

[0013] When the second target roller and the first target roller are not rigidly connected, the second target roller and the first target roller are controlled to perform the dehydration process simultaneously.

[0014] In one technical solution of the above control method, the dehydration program of the washing equipment includes a clothes distribution stage, an eccentricity detection stage, and a speed-up dehydration stage performed sequentially over time. The step of "controlling the second target roller to perform a preset operation according to the mechanical connection method between the second target roller and the first target roller" includes:

[0015] When the second target roller and the first target roller are rigidly connected, and before the first target roller is in the speed-up dehydration stage, the second target roller is controlled to start executing the dehydration program;

[0016] When the second target roller enters the eccentricity detection stage, the second target roller is controlled to run in the opposite direction of rotation to the first target roller.

[0017] The operating states of the second target roller and the first target roller are controlled based on the load eccentricity value of the second target roller during its eccentricity detection process and the load eccentricity value of the first target roller during its eccentricity detection process.

[0018] In one technical solution of the above control method, the step of "controlling the operating state of the second target roller and the first target roller according to the load eccentricity value of the second target roller during its eccentricity detection process and the load eccentricity value of the first target roller during its eccentricity detection process" includes:

[0019] When the load eccentricity values ​​of the first target roller and the second target roller are consistently less than a preset eccentricity threshold, the first target roller and the second target roller simultaneously execute an accelerated dehydration process; and / or

[0020] When at least one of the load eccentricity values ​​of the first target roller and the second target roller is greater than or equal to a preset eccentricity threshold, the first target roller and the second target roller are controlled to slow down and re-enter the clothing distribution stage.

[0021] In one technical solution of the above control method, a displacement sensor is provided on at least one drum of the washing equipment, and the displacement sensor is used to detect the amount of displacement during the rotation of each drum.

[0022] The steps of "controlling the second target roller to perform a preset operation according to the mechanical connection method between the second target roller and the first target roller" include:

[0023] When the second target roller and the first target roller are rigidly connected, the second target roller is controlled to perform a dehydration process.

[0024] Obtain the displacement of the first target roller and the displacement of the second target roller;

[0025] The operating status of the first target roller and the second target roller is controlled based on the displacement of the first target roller and the displacement of the second target roller.

[0026] In one technical solution of the above control method, the step of "controlling the operating state of the first target roller and the second target roller according to the displacement of the first target roller and the displacement of the second target roller" includes:

[0027] When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process.

[0028] When either the displacement of the first target roller or the displacement of the second target roller is greater than or equal to a preset displacement threshold, the first target roller and the second target roller are controlled to slow down and the dehydration process is re-executed.

[0029] In one technical solution of the above control method, the step of "controlling the operating state of the first target roller and the second target roller according to the displacement of the first target roller and the displacement of the second target roller" includes:

[0030] When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process.

[0031] When the displacement of either the first target roller or the second target roller is greater than or equal to a preset displacement threshold, the corresponding roller will be slowed down and the dehydration process will be re-executed, while the other roller continues its own dehydration process.

[0032] In one technical solution of the above control method, the control method further includes:

[0033] When the displacement of the rollers re-entering the dehydration process is greater than or equal to the preset displacement threshold again, the first target roller and the second target roller are controlled to slow down and the dehydration process is re-executed.

[0034] In one technical solution of the above control method, the step of "controlling the operating state of the first target roller and the second target roller according to the displacement of the first target roller and the displacement of the second target roller" includes:

[0035] When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process.

[0036] When the displacement of either the first target roller or the second target roller is greater than or equal to a preset displacement threshold, the first target roller continues to run, while the second target roller is slowed down and the dehydration process is re-executed.

[0037] In one technical solution of the above control method, the control method further includes:

[0038] During the process of the second target roller slowing down and re-executing the dehydration program, if the displacement of either the first target roller or the second target roller is greater than or equal to the preset displacement threshold again, the second target roller continues to run, and the first target roller slows down and re-executes the dehydration program.

[0039] In one technical solution of the above control method, the preset displacement threshold values ​​corresponding to the first target roller and the second target roller are different.

[0040] In a second aspect, this application provides a control device for a multi-drum washing machine, including a processor and a storage device, the storage device being adapted to store a plurality of program codes, the program codes being adapted to be loaded and run by the processor to perform the control method described in any one of the first aspects.

[0041] As described above, based on the technical solution of this application, during the operation of a multi-drum washing machine, when the front drum is performing a spin-drying process, and the rear drum is about to enter the spin-drying process, the rear drum is controlled to wait and execute the spin-drying process sequentially according to the order in which it enters the spin-drying process, or to enter the spin-drying process in an operating mode opposite to that of the front drum, or to further determine the operating state of the two drums based on their displacement after entering the spin-drying process. This can effectively reduce the problem of decreased eccentricity detection accuracy caused by multiple drums performing eccentricity detection simultaneously, thereby improving the operational stability of the washing machine. Attached Figure Description

[0042] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0043] Figure 1 is a flowchart of the main steps of a dehydration control method for a multi-drum washing apparatus according to an embodiment of this application;

[0044] Figure 2 is a detailed flowchart of the dehydration control method of a multi-drum washing apparatus according to the first embodiment of this application;

[0045] Figure 3 is a detailed flowchart of the dehydration control method of a multi-drum washing apparatus according to the second embodiment of this application;

[0046] Figure 4 is a detailed flowchart of the dehydration control method of a multi-drum washing apparatus according to the third embodiment of this application;

[0047] Figure 5 is a detailed flowchart of the dehydration control method of a multi-drum washing apparatus according to the fourth embodiment of this application. Detailed Implementation

[0048] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0049] It should be noted that in the description of this application, terms such as "upper," "lower," "left," "right," "inner," and "outer," which indicate direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the relevant device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, ordinal numbers such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] This application uses a drum washing machine as an example to illustrate the washing equipment. To facilitate understanding of the technical solution, the spin-drying program of the washing machine is first briefly described. The spin-drying program includes a clothes-distribution stage, an eccentricity detection stage, and a speed-up spin-drying stage. In the clothes-distribution stage, the drum rotates back and forth at a low speed to evenly coat the washed clothes onto the drum wall. After the clothes-distribution stage is completed, the drum enters the eccentricity detection stage at a certain speed (higher than the speed in the clothes-distribution stage) and rotates in one direction. During this process, the eccentricity value can be obtained by mathematically processing the measured motor speed fluctuations. Then, it is determined whether the eccentricity value is lower than a preset eccentricity threshold. If the eccentricity value is lower than the preset eccentricity threshold, the washing machine is controlled to enter the speed-up spin-drying stage; otherwise, it needs to slow down and re-enter the clothes-distribution stage until the eccentricity detection meets the requirements.

[0052] However, for multi-drum washing machines, if multiple drums are spinning simultaneously, the oscillation of each drum during the eccentricity detection stage will affect the eccentricity detection process of each other, thereby reducing the accuracy of the eccentricity detection results of each drum and affecting the stability of the washing machine in subsequent operation.

[0053] Therefore, this application aims to improve the stability of a multi-drum washing machine during operation by modifying the spin-drying process. Specifically, the spin-drying control method for the multi-drum washing equipment of this application includes:

[0054] While the first target drum is performing its spin-drying cycle, the operating status of the other drums is monitored, and they are controlled to operate in a manner that does not interfere with the spin-drying process of the first target drum. This "state that does not interfere with the spin-drying process of the first target drum" includes, but is not limited to, having the other drums wait for the first target drum to complete its spin-drying process, or having the other drums operate at a low speed, etc. In short, this aims to reduce the vibration of the washing equipment and prevent collisions or displacement between the drums. The specific steps are as follows:

[0055] Referring to Figure 1, a flowchart of the main steps of a dehydration control method for a multi-drum washing apparatus according to an embodiment of this application is shown, which includes:

[0056] S101: While the first target roller is performing the dewatering process, monitor the operating status of the other rollers.

[0057] S102: When it is detected that the second target drum is about to perform a dehydration program, the second target drum is controlled to perform a preset operation according to the mechanical connection method between the second target drum and the first target drum, so as to reduce the vibration of the washing equipment.

[0058] It should be noted that "to perform the dewatering process" mentioned above includes a certain time before the second target roller performs the dewatering process. This time can be set by those skilled in the art according to actual needs. In extreme cases, this time can also be zero, that is, at the exact end of the drainage process.

[0059] In addition, it should be noted that the above-mentioned "mechanical connection method" includes rigid connection and non-rigid connection. For example, in one structure of a three-drum washing machine, the two upper drums are rigidly connected to each other, while any one of the drums is non-rigidly connected to the lower drum.

[0060] In step S102, "controlling the second target drum to perform a preset operation according to the mechanical connection method between the second target drum and the first target drum" can include various methods. In short, its purpose is to reduce the phenomenon of increased vibration of the washing machine caused by inaccurate eccentricity detection results due to multiple drums spinning simultaneously.

[0061] The following provides several specific methods for “preset operation” as examples.

[0062] Referring to Figure 2, a detailed flowchart of the dehydration control method for a multi-drum washing apparatus according to an embodiment of this application is shown. In the embodiment shown in Figure 2, step S102, "controlling the second target drum to perform a preset operation," specifically includes:

[0063] S1021: When the second target roller and the first target roller are rigidly connected, control the second target roller to wait or run at low speed.

[0064] S1022: After the first target roller completes the dehydration process, control the second target roller to execute the dehydration process.

[0065] As can be seen from the above steps S1021 and S1022, in this embodiment, in order to reduce the problem of inaccurate eccentricity detection and avoid multiple rollers from performing the dehydration process at the same time, that is, after the second target roller completes the drainage process, it executes step S1021, waits for the first target roller to complete the dehydration process, and then executes the second target roller to perform the dehydration process, or controls the second target roller to operate at a low speed (the specific speed is aimed at reducing the impact on the first target roller, for example, controlled within 100 revolutions per minute).

[0066] For example, in one scenario, three drums operate independently and are rigidly connected to each other. The spin-drying process is executed sequentially based on the order in which the drums enter the spin-drying cycle. When a later drum enters the cycle, it must wait for the previous drum to complete its spin-drying process before starting its own. If two drums enter the spin-drying cycle simultaneously, the system randomly selects one to execute first, while the other waits. In this way, multiple drums execute the spin-drying cycle sequentially according to their entry time, effectively reducing the decrease in eccentricity detection accuracy caused by multiple drums simultaneously performing eccentricity detection, thereby improving the operational stability of the washing equipment.

[0067] It should be understood that the “first target drum” and “second target drum” mentioned in this application are not limited to the situation where only two drums are running simultaneously during the washing process. The “first target drum” and “second target drum” also refer to two drums at any time before or after the operation of multiple (three or more) drums in the washing equipment.

[0068] Accordingly, it can be understood that when the second target roller and the first target roller are not rigidly connected, the second target roller and the first target roller are controlled to perform the dewatering process simultaneously. When the two rollers are rigidly connected, their eccentricity detection processes will affect each other; when they are not rigidly connected, their eccentricity detection processes will not affect each other. The following implementation will be described in the case of a rigid connection between the rollers.

[0069] Referring to Figure 3, a detailed flowchart of the dehydration control method for a multi-drum washing apparatus according to an embodiment of this application is shown. In the embodiment shown in Figure 3, step S102, "controlling the second target drum to perform a preset operation," specifically includes:

[0070] S1023: When the second target roller and the first target roller are rigidly connected, and before the first target roller is in the speed-up dehydration stage, control the second target roller to start the dehydration program.

[0071] S1024: When the second target roller enters the eccentricity detection stage, control the second target roller to run in the opposite direction to the rotation of the first target roller.

[0072] For example, in one scenario, the first target roller is in the clothes distribution stage of the dehydration process. Then, the second target roller executes step S1023, also entering the clothes distribution stage. Both the first and second target rollers rotate in opposite directions at low speeds during their respective clothes distribution stages, distributing the clothes evenly on the roller wall. After the first target roller enters the eccentricity detection stage, the second target roller also enters the eccentricity detection stage, but its rotation direction must be opposite to that of the first target roller. In another scenario, the first target roller is in the eccentricity detection stage of the dehydration process. Similarly, the second target roller executes the dehydration process, and after its clothes distribution stage is completed, it enters the eccentricity detection stage in the opposite direction to that of the first target roller, performing eccentricity detection simultaneously with the first target roller.

[0073] S1025: Control the operating status of the second target roller and the first target roller according to the load eccentricity value of the second target roller during its eccentricity detection process and the load eccentricity value of the first target roller during its eccentricity detection process.

[0074] Specifically, step S1025 may include:

[0075] S10251: When the load eccentricity value of the first target roller and the load eccentricity value of the second target roller are always less than the preset eccentricity threshold, the first target roller and the second target roller shall simultaneously execute the speed-up dehydration program.

[0076] It should be noted that the aforementioned "preset eccentricity threshold" can be determined according to actual needs. Different rollers may have different or the same preset eccentricity threshold. For example, when two rollers have the same shape and size and the same mounting structure, their preset eccentricity thresholds can be the same. When two rollers have different shapes and sizes and / or different mounting structure models, their preset eccentricity thresholds can be different. Of course, the preset eccentricity thresholds of all rollers can also be set to the same value. Those skilled in the art can adaptively adjust the specific value of the preset eccentricity threshold according to actual needs.

[0077] In addition, in step S10251 above, "the first target roller and the second target roller simultaneously perform the speed-up dehydration program" refers to the speed-up dehydration program after both the first target roller and the second target roller have met the requirements for eccentricity detection.

[0078] S10252: When at least one of the load eccentricity values ​​of the first target roller and the second target roller is greater than or equal to a preset eccentricity threshold, the first target roller and the second target roller are controlled to slow down and re-enter the dehydration process.

[0079] In step S10252, after the first target roller and the second target roller slow down and re-enter the dehydration program, they both execute the dehydration program simultaneously. Then, in their respective eccentricity detection stages, the first target roller and the second target roller are controlled to run in opposite directions until the load eccentricity value of the first target roller and the load eccentricity value of the second target roller are always less than the preset eccentricity threshold in the eccentricity detection stage, so that they dehydrate simultaneously.

[0080] In the above embodiment, the two rollers operate in opposite directions during the eccentricity detection stage. The swaying generated by the two rollers during rotation can cancel each other out, reducing the impact of the swaying of the two rollers on the eccentricity detection process, thereby improving the accuracy of eccentricity detection.

[0081] Therefore, optionally, in one embodiment of this application, when the first target roller and the second target roller operate in opposite directions during the eccentricity detection phase, the absolute values ​​of their rotational speeds are the same. When the absolute values ​​of their rotational speeds are equal, the swaying can be counteracted to the maximum extent, thereby further improving the accuracy of eccentricity detection.

[0082] Referring to Figure 4, a detailed flowchart of the dehydration control method for a multi-drum washing machine according to an embodiment of this application is shown. It should be noted that the embodiment shown in Figure 4 is based on the premise that at least one drum of the washing machine is equipped with a displacement sensor, which is used to detect the displacement of each drum during rotation. Specifically, when the washing machine is equipped with only one displacement sensor, this sensor can be installed on any one of the drums. In this case, after the displacement sensor measures the displacement of that drum, the displacement of the other drums can also be calculated based on the spatial position and connection relationship between the drums. Of course, a displacement sensor can also be installed on each drum separately; this application does not limit the number of displacement sensors installed.

[0083] In the embodiment shown in Figure 4, step S102, "controlling the second target roller to perform a preset operation according to the mechanical connection method between the second target roller and the first target roller," specifically includes:

[0084] S1026: When the second target roller and the first target roller are rigidly connected, control the second target roller to perform the dehydration process.

[0085] S1027: Obtain the displacement of the first target roller and the displacement of the second target roller.

[0086] S1028: Control the operating status of the first target roller and the second target roller according to the displacement of the first target roller and the displacement of the second target roller.

[0087] Specifically, in one implementation, step S1028 may include:

[0088] S10281: When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process.

[0089] The phrase "continue the dehydration process" means that both processes proceed normally according to the steps of the dehydration process. For example, after the eccentricity detection stage is completed, the process enters the acceleration dehydration stage.

[0090] S10282: When either the displacement of the first target roller or the displacement of the second target roller is greater than or equal to a preset displacement threshold, control the first target roller and the second target roller to slow down and re-enter the dehydration process.

[0091] As can be seen from the above, in the above method, the first target roller and the second target roller can perform the dehydration process at the same time, but the displacement of the two rollers is used to determine whether they can perform dehydration at the same time, and then proceed to the next stage of the speed-up dehydration process.

[0092] Referring to Figure 5, in another implementation, step S1028 can also be:

[0093] S10281: When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process.

[0094] S10283: When the displacement of one of the first target rollers and the second target rollers is greater than or equal to the preset displacement threshold, the corresponding roller will be decelerated and the dehydration program will be re-executed, while the other roller will continue its own dehydration program.

[0095] S10284: When the displacement of the roller that re-enters the dewatering program during its operation is greater than or equal to the preset displacement threshold again, control the first target roller and the second target roller to reduce their speed and re-execute the dewatering program.

[0096] As can be seen, the difference between steps S10283 and S10284 and step S10282 is that when the displacement of one roller exceeds a preset displacement threshold, it indicates that the uniformity of the fabric inside that roller may be worse than that of the other roller. Therefore, only that roller needs to be restarted. However, if the displacement remains excessive after restarting, it indicates that both rollers may have problems, and both need to be decelerated and the dehydration process repeated. This further improves the precision of the control method.

[0097] In another implementation, based on the above embodiment, step S10283 may also be: when the displacement of either the first target roller or the second target roller is greater than or equal to a preset displacement threshold, the first target roller continues to run, the second target roller is slowed down and the dehydration process is re-executed.

[0098] Accordingly, step S10284 can be: during the process of the second target roller slowing down and re-executing the dewatering program, when the displacement of either the first target roller or the second target roller is greater than or equal to the preset displacement threshold again, the second target roller continues to run, and the first target roller slows down and re-executes the dewatering program.

[0099] As can be seen, when the above method is used, if one of the two rollers exceeds the preset displacement threshold, the roller that enters the dehydration program later is slowed down first. If the roller that enters the dehydration program later is slowed down and the clothes are evenly distributed again, and the displacement still exceeds the preset displacement threshold, it indicates that there may be a problem with the roller that enters the dehydration program first. Therefore, the roller that enters the dehydration program first is slowed down and the dehydration program is executed again.

[0100] It should be noted that in some implementations, the preset displacement threshold values ​​for the first and second target rollers are the same. In other implementations, the preset displacement threshold values ​​for the first and second target rollers can be different, depending on factors such as the shape, size, and installation structure of the rollers. Setting different preset displacement threshold values ​​for each roller based on its own shape, size, and installation structure can further improve the precision of the control method, thereby further reducing vibration and improving the operational stability of the washing machine.

[0101] This application also discloses a control device for a multi-drum washing machine, including a processor and a storage device. The storage device is adapted to store multiple program codes, which are adapted to be loaded and run by the processor to perform the control method in any of the above embodiments.

[0102] It should be noted that the aforementioned processor can be a central processing unit, a microprocessor, a digital signal processor, or any other suitable processor, which can be implemented in software, in hardware, or in a combination of both. Such adjustments to the processor form and application level do not deviate from the principles and scope of this application.

[0103] Similarly, the aforementioned storage device can be any suitable medium capable of storing program code, such as hard disk, flash memory, read-only memory, random access memory, etc., and this application does not impose any restrictions on its form.

[0104] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A method for controlling the dehydration of a multi-drum washing machine, characterized in that, include: While the first target roller is performing the dewatering process, the operating status of the other rollers is monitored, and the other rollers are controlled to operate in a manner that does not affect the dewatering of the first target roller.

2. The control method according to claim 1, characterized in that, The steps of "controlling the operation of other rollers so as not to affect the dehydration of the first target roller" include: When the second target drum is detected to be about to perform a spin-drying process, the second target drum and the first target drum are controlled to perform preset operations according to the mechanical connection method between the second target drum and the first target drum, so as to reduce the vibration of the washing equipment.

3. The control method according to claim 2, characterized in that, The steps of "controlling the second target roller to perform a preset operation according to the mechanical connection method between the second target roller and the first target roller" include: When the second target roller and the first target roller are rigidly connected, the second target roller is controlled to wait or run at a low speed. After the first target roller completes the dehydration process, the second target roller is controlled to execute the dehydration process; and / or When the second target roller and the first target roller are not rigidly connected, the second target roller and the first target roller are controlled to perform the dehydration process simultaneously.

4. The control method according to claim 2, characterized in that, The dehydration program of the washing equipment includes a laundry distribution stage, an eccentricity detection stage, and a speed-up dehydration stage, performed sequentially over time. The step of "controlling the second target drum to perform a preset operation according to the mechanical connection method between the second target drum and the first target drum" includes: When the second target roller and the first target roller are rigidly connected, and before the first target roller is in the speed-up dehydration stage, the second target roller is controlled to start executing the dehydration program; When the second target roller enters the eccentricity detection stage, the second target roller is controlled to run in the opposite direction of rotation to the first target roller. The operating states of the second target roller and the first target roller are controlled based on the load eccentricity value of the second target roller during its eccentricity detection process and the load eccentricity value of the first target roller during its eccentricity detection process.

5. The control method according to claim 4, characterized in that, The step of "controlling the operating state of the second target roller and the first target roller based on the load eccentricity value of the second target roller during its eccentricity detection process and the load eccentricity value of the first target roller during its eccentricity detection process" includes: When the load eccentricity values ​​of the first target roller and the second target roller are consistently less than a preset eccentricity threshold, the first target roller and the second target roller simultaneously execute an accelerated dehydration process; and / or When at least one of the load eccentricity values ​​of the first target roller and the second target roller is greater than or equal to a preset eccentricity threshold, the first target roller and the second target roller are controlled to slow down and re-enter the clothing even distribution stage.

6. The control method according to claim 2, characterized in that, At least one drum of the washing equipment is equipped with a displacement sensor, which is used to detect the amount of displacement during the rotation of each drum. The steps of "controlling the second target roller to perform a preset operation according to the mechanical connection method between the second target roller and the first target roller" include: When the second target roller and the first target roller are rigidly connected, the second target roller is controlled to perform a dehydration process. Obtain the displacement of the first target roller and the displacement of the second target roller; The operating status of the first target roller and the second target roller is controlled based on the displacement of the first target roller and the displacement of the second target roller.

7. The control method according to claim 6, characterized in that, The steps of "controlling the operating states of the first target roller and the second target roller based on the displacement of the first target roller and the displacement of the second target roller" include: When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process. When either the displacement of the first target roller or the displacement of the second target roller is greater than or equal to a preset displacement threshold, the first target roller and the second target roller are controlled to slow down and the dehydration process is re-executed.

8. The control method according to claim 6, characterized in that, The steps of "controlling the operating states of the first target roller and the second target roller based on the displacement of the first target roller and the displacement of the second target roller" include: When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process. When the displacement of either the first target roller or the second target roller is greater than or equal to a preset displacement threshold, the corresponding roller will be slowed down and the dehydration process will be re-executed, while the other roller continues its own dehydration process.

9. The control method according to claim 8, characterized in that, The control method further includes: When the displacement of the rollers re-entering the dehydration process is greater than or equal to the preset displacement threshold again, the first target roller and the second target roller are controlled to slow down and the dehydration process is re-executed.

10. The control method according to claim 6, characterized in that, The steps of "controlling the operating states of the first target roller and the second target roller based on the displacement of the first target roller and the displacement of the second target roller" include: When the displacement of the first target roller and the displacement of the second target roller are both always less than the preset displacement threshold, the first target roller and the second target roller continue to perform the dehydration process. When the displacement of either the first target roller or the second target roller is greater than or equal to a preset displacement threshold, the first target roller continues to run, while the second target roller is slowed down and the dehydration process is re-executed.

11. The control method according to claim 10, characterized in that, The control method further includes: During the process of the second target roller slowing down and re-executing the dehydration program, if the displacement of either the first target roller or the second target roller is greater than or equal to the preset displacement threshold again, the second target roller continues to run, and the first target roller slows down and re-executes the dehydration program.

12. The control method according to any one of claims 6 to 11, characterized in that, The preset displacement threshold values ​​corresponding to the first target roller and the second target roller are different.

13. A control device for a multi-drum washing machine, comprising a processor and a storage device, the storage device being adapted to store multiple program codes, characterized in that, The program code is adapted to be loaded and run by the processor to perform the control method according to any one of claims 1 to 12.

Images