Dewatering process method and device for washing machine, washing machine and storage medium

Abstract

The application provides a dehydration processing method and device of a washing machine, the washing machine and a storage medium, and relates to the technical field of intelligent household appliances. A dehydration processing method of a washing machine comprises the following steps: acquiring N fixed-point point displacements of an outer drum of the washing machine at preset interval times through a sensor, calculating the slope of the fixed-point point displacements acquired at two adjacent times relative to the preset interval time, and calculating a new fixed-point displacement; judging the distribution of clothes according to the relationship between the Nth fixed-point point displacement or the new fixed-point point displacement and a displacement threshold value, and determining whether to control the washing machine to accelerate. In the manner, the distribution of clothes in the washing machine drum can be more intuitively judged through the fixed-point point displacement of the outer drum, the distribution effect of clothes is improved, the judgment of whether the washing machine can enter the high-speed dehydration stage is more accurate, and the outer drum is prevented from colliding with the washing machine shell, thereby improving the use experience of users.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of intelligent household appliances, and particularly relates to a dehydration processing method and device of a washing machine, the washing machine and a storage medium. BACKGROUND

[0002] The existing drum washing machine mainly comprises a box body, an outer drum, an inner drum, a motor and a belt pulley. The outer drum is installed in the box body through damping support, the inner drum coaxial with the outer drum is rotatably installed in the outer drum through connecting support, and the motor is installed below the outer drum and is in transmission connection with the inner drum through the belt pulley.

[0003] In the dehydration process, the motor drives the inner drum to rotate rapidly through the belt pulley, and the water in the clothes in the inner drum is separated from the clothes under the action of centrifugal force and is thrown into the outer drum from a plurality of small holes on the inner drum wall and then is discharged out of the washing machine box body. If the clothes are not evenly distributed in the dehydration process, a large eccentricity is generated to cause a centrifugal force to be too large, which causes the inner drum to be greatly deviated under the action of the centrifugal force. The centrifugal force acts on the inner drum, the connecting support and the outer drum in turn, causing the outer drum to also be greatly deviated and collide with the washing machine box body, and even the whole machine is displaced. Therefore, before the washing machine enters the dehydration program, the clothes in the inner drum of the washing machine need to be controlled to be evenly distributed.

[0004] The existing technology usually uses the following means to solve the problem that the outer drum collides with the washing machine box body due to uneven distribution of the clothes in the inner drum: determining the distribution state of the clothes based on the change trend of the motor speed or the motor current, different clothes states correspond to different changes of the motor speed or the motor current, and the inner drum of the washing machine is controlled to alternately rotate forward and reverse within the time interval between two adjacent dehydrations.

[0005] However, the clothes distribution effect determined by the change trend of the motor speed or the motor current is not good, and the outer drum cannot be prevented from colliding with the washing machine box body. SUMMARY

[0006] In order to solve the problem of poor clothes distribution effect in the prior art, the present application provides a dehydration processing method and device of a washing machine, the washing machine and a storage medium.

[0007] In a first aspect, the present application provides a dehydration processing method of a washing machine, which comprises the following steps:

[0008] obtaining the speed of the washing machine, and obtaining N fixed-point displacements of the outer drum of the washing machine at a preset interval time when the speed of the washing machine is a preset speed;

[0009] calculating the slope of the fixed-point displacements obtained at two adjacent times with respect to the preset interval time, and calculating a new fixed-point displacement according to the slope;

[0010] According to a size relationship between the new fixed-point displacement or the Nth fixed-point displacement and a displacement threshold, it is determined whether to control the washing machine to enter a high-speed dehydration stage.

[0011] In a possible implementation, the N is equal to 3, the slope of the fixed-point displacement acquired at two adjacent times with respect to the preset interval time is calculated, and a new fixed-point displacement is calculated according to the slope.

[0012] A first slope is acquired according to a difference between the second fixed-point displacement and the first fixed-point displacement and the preset interval time, and a second slope is acquired according to a difference between the third fixed-point displacement and the second fixed-point displacement and the preset interval time.

[0013] A third slope is acquired according to the first slope, a weight coefficient corresponding to the first slope, the second slope, and a weight coefficient corresponding to the second slope.

[0014] A new fixed-point displacement is acquired according to the third slope, the third fixed-point displacement, and the preset interval time.

[0015] In a possible implementation, the determining, according to a size relationship between the new fixed-point displacement or the Nth fixed-point displacement and a displacement threshold, whether to control the washing machine to enter a high-speed dehydration stage includes:

[0016] A first displacement threshold is acquired according to the preset rotating speed and a preset mapping curve, the preset mapping curve being used to indicate a mapping relationship between a rotating speed of the washing machine and a maximum displacement of an outer drum of the washing machine when the outer drum collides with a shell of the washing machine.

[0017] It is determined whether to control the washing machine to enter a high-speed dehydration stage according to the new fixed-point displacement and the first displacement threshold, or the Nth fixed-point displacement and a second displacement threshold, the second displacement threshold being a minimum outer drum displacement in the preset mapping curve.

[0018] In a possible implementation, the determining, according to the new fixed-point displacement and the first displacement threshold, whether to control the washing machine to enter a high-speed dehydration stage includes:

[0019] If the slope is less than 0 and the new fixed-point displacement is less than the first displacement threshold, the washing machine is controlled to enter a high-speed dehydration stage.

[0020] In a possible implementation, the determining, according to the Nth fixed-point displacement and the second displacement threshold, whether to control the washing machine to enter a high-speed dehydration stage includes:

[0021] If the Nth point displacement is less than or equal to the second displacement threshold, the washing machine is controlled to enter a high-speed dehydration stage.

[0022] In a possible implementation, the method further includes:

[0023] If the washing machine enters the high-speed dehydration stage, the drum displacement of the washing machine is continuously acquired.

[0024] When the drum displacement is greater than or equal to a distance threshold, the washing machine is controlled to reduce the speed to the preset rotating speed, and then the N point displacements of the washing machine drum are acquired again according to the preset interval time.

[0025] In a possible implementation, the method further includes:

[0026] When the number of times of acquiring the N point displacements of the washing machine drum according to the preset interval time is greater than a preset number of times, the washing machine is controlled to stop running.

[0027] In a second aspect, the application provides a dehydration control device of a washing machine, including an acquisition module, a calculation module and a judgment module, wherein:

[0028] The acquisition module is configured to acquire the rotating speed of the washing machine, and when the rotating speed of the washing machine is a preset rotating speed, acquire N point displacements of the washing machine drum according to a preset interval time.

[0029] The calculation module is configured to calculate the slope of the point displacements acquired at adjacent two times with respect to the preset interval time, and calculate a new point displacement according to the slope.

[0030] The judgment module is configured to judge whether to control the washing machine to enter a high-speed dehydration stage according to the size relationship between the new point displacement or the Nth point displacement and a displacement threshold.

[0031] In a possible implementation, the N is equal to 3, and the calculation module is further configured to acquire a first slope according to the difference between a second point displacement and a first point displacement and the preset interval time, and acquire a second slope according to the difference between a third point displacement and the second point displacement and the preset interval time.

[0032] A third slope is acquired according to the first slope, a weight coefficient corresponding to the first slope, the second slope and a weight coefficient corresponding to the second slope.

[0033] A new point displacement is acquired according to the third slope, the third point displacement and the preset interval time.

[0034] In a possible implementation, the determining module is further configured to obtain a first displacement threshold according to the preset rotation speed and a preset mapping curve, the preset mapping curve being configured to indicate a mapping relationship between rotation speed of the washing machine and maximum displacement of the outer drum when the outer drum collides with the washing machine shell.

[0035] According to the new fixed-point displacement or the Nth fixed-point displacement and the first displacement threshold or a second displacement threshold, it is determined whether to control the washing machine to enter a high-speed dehydration stage, the second displacement threshold being the minimum displacement of the outer drum in the preset mapping curve.

[0036] In a possible implementation, the determining module is further configured to, if the slope is less than 0 and the new fixed-point displacement is less than the first displacement threshold, control the washing machine to enter the high-speed dehydration stage.

[0037] In a possible implementation, the determining module is further configured to, if the Nth fixed-point displacement is less than or equal to the second displacement threshold, control the washing machine to enter the high-speed dehydration stage.

[0038] In a possible implementation, the determining module is further configured to, if the washing machine enters the high-speed dehydration stage, continuously obtain the drum displacement of the outer drum of the washing machine.

[0039] When the drum displacement is greater than or equal to a distance threshold, the washing machine is controlled to reduce the speed to the preset rotation speed, and then N fixed-point displacements of the outer drum of the washing machine are obtained again according to the preset interval time.

[0040] In a possible implementation, the determining module is further configured to, when the number of times of obtaining N fixed-point displacements of the outer drum of the washing machine according to the preset interval time is greater than a preset number of times, control the washing machine to stop running.

[0041] In a third aspect, the washing machine is provided. The washing machine comprises at least one processor and a memory and a six-axis acceleration sensor, wherein:

[0042] The memory is configured to store computer-executable instructions.

[0043] The six-axis acceleration sensor is configured to obtain fixed-point displacements of the outer drum of the washing machine.

[0044] The at least one processor is configured to execute the computer-executable instructions stored in the memory, so that the at least one processor executes the dehydration processing method of the washing machine according to any one of the first aspect. In a fourth aspect, the computer storage medium is provided. The computer storage medium stores computer-executable instructions. When the computer-executable instructions are executed by a processor, the computer-executable instructions are configured to implement the dehydration processing method of the washing machine according to any one of the first aspect.

[0045] In a fifth aspect, the embodiments of the present application further provide a computer program product comprising a computer program, which, when executed by a processor, can implement the steps of the dewatering treatment method of the washing machine according to any one of the preceding aspects.

[0046] The present application provides a dewatering treatment method and device of a washing machine, a washing machine and a storage medium. The dewatering treatment method comprises the following steps: acquiring N fixed point displacements of outer drums of washing machines at intervals by sensors; acquiring a slope according to two adjacent fixed point displacements; calculating a new fixed point displacement; determining whether to control the washing machine to accelerate according to a relationship between the Nth fixed point displacement or the new fixed point displacement and a displacement threshold. In the foregoing manner, the distribution of laundry in the washing machine drum can be more intuitively determined according to the fixed point displacement of the outer drum, the distribution of laundry is improved, the determination of whether the washing machine can enter the high-speed dewatering stage is more accurate, and the outer drum is prevented from colliding with the washing machine shell, thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0047] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the present application.

[0048] Figure 1 A flowchart of a dewatering treatment method of a washing machine provided by an embodiment of the present application Figure 1 ;

[0049] Figure 2 A flowchart of a dewatering treatment method of a washing machine provided by an embodiment of the present application Figure 2 ;

[0050] Figure 3 A flowchart of a dewatering treatment method of a washing machine provided by an embodiment of the present application Figure 3 ;

[0051] Figure 4 A structural diagram of a dewatering control device of a washing machine provided by an embodiment of the present application.

[0052] Figure 5 A structural diagram of a washing machine provided by an embodiment of the present application.

[0053] The specific embodiments of the present application have been shown in the foregoing drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0054] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0055] The terms "first", "second", "third", "fourth" and the like in the description, claims, and drawings of the present application, and those above (if any) are used to distinguish similar objects, and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0056] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean example, illustration, or illustration. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of "exemplary" or "for example" is intended to present the relevant concept in a specific manner.

[0057] The prior art usually judges the distribution state of clothes in the drum based on the change trend of motor speed or motor current for the problem that the outer drum collides with the washing machine shell due to uneven distribution of clothes, wherein different clothes distribution states correspond to different changes of motor speed or motor current. Meanwhile, the inner drum of the washing machine is controlled to alternate forward rotation and reverse rotation within the time interval between two adjacent dehydration. However, this method starts from the change of motor speed or motor current, and it is difficult to avoid the collision of the outer drum with the washing machine shell.

[0058] Based on this, the present application starts from the displacement of the outer drum of the washing machine during the dehydration process to judge the distribution of clothes in the inner drum, which not only can judge the distribution of clothes in the inner drum, but also can directly determine whether the outer drum has a collision trend with the washing machine shell, thereby avoiding the collision of the outer drum with the washing machine shell on the basis of ensuring the uniform distribution of clothes.

[0059] Specifically, the present application proposes a dehydration processing method of a washing machine, which obtains N fixed point displacements of the outer drum of the washing machine through a sensor interval, obtains a slope according to two adjacent fixed point displacements, calculates a new fixed point displacement, judges the distribution of clothes according to the relationship between the Nth fixed point displacement or the new fixed point displacement and a displacement threshold, and determines whether to control the washing machine to accelerate.

[0060] Next, the technical solutions shown in the present application will be described in detail through specific embodiments. It should be noted that the following embodiments can exist independently or in combination. For the same or similar content, it will not be repeated in different embodiments.

[0061] The following will be described in detail Figure 1 The present application provides a method for controlling the dehydration of a washing machine.

[0062] Figure 1 The flowchart of a dehydration treatment method for a washing machine provided by an embodiment of the present application Figure 1 As shown in Figure 1 , the method comprises:

[0063] S101, obtain the rotational speed of the washing machine, and when the rotational speed of the washing machine is a preset rotational speed, obtain N fixed point displacements of the outer drum of the washing machine at a preset interval.

[0064] In this step, the rotational speed of the washing machine is controlled to increase, and when the rotational speed is a preset rotational speed, the rotational speed of the washing machine is kept unchanged. The preset rotational speed is used to control the uniform distribution of the clothes in the inner drum of the washing machine, and N fixed point displacements of the outer drum of the washing machine are obtained at a preset time interval, i.e. the fixed point displacements of the outer drum at different times. The fixed point displacement refers to the point displacement of a fixed position on the outer drum of the washing machine.

[0065] The preset rotational speed is selected according to the washing machine model. For example, the preset rotational speed ranges from 30 rpm to 50 rpm. Meanwhile, N is selected according to the actual situation. For example, N can be 3.

[0066] In this embodiment, how to obtain the fixed point displacement of the outer drum of the washing machine is not limited. For example, the washing machine comprises a six-axis acceleration sensor, which is used to obtain the fixed point displacement of the outer drum of the washing machine. The six-axis acceleration sensor can be arranged on the outer drum. The position of the six-axis acceleration sensor corresponds to the position of the fixed point.

[0067] S102, calculate the slope of the fixed point displacements obtained at adjacent times with respect to the preset interval, and calculate a new fixed point displacement according to the slope.

[0068] In this step, the slope is obtained according to the two fixed point displacements obtained at adjacent times. Therefore, N-1 slopes can be obtained, and a new fixed point displacement is calculated according to the N-1 slopes and the weight coefficients corresponding to each slope.

[0069] For example, when N is equal to 3, a first slope dx1 is obtained according to a difference between a second fixed-point displacement X2 and a first fixed-point displacement X1 and the preset interval time; a second slope dx2 is obtained according to a difference between a third fixed-point displacement X3 and the second fixed-point displacement X2 and the preset interval time; a third slope dx3 is obtained according to the first slope dx1, a weight coefficient corresponding to the first slope, the second slope dx2 and a weight coefficient corresponding to the second slope; and a new fixed-point displacement X4 is obtained according to the third slope dx3, the third fixed-point displacement X3 and the preset interval time.

[0070] For example, when N is equal to 3, a first slope dx1 is obtained according to a difference between a second fixed-point displacement X2 and a first fixed-point displacement X1 and the preset interval time; a second slope dx2 is obtained according to a difference between a third fixed-point displacement X3 and the second fixed-point displacement X2 and the preset interval time; a third slope dx3 is obtained according to the first slope dx1, a weight coefficient corresponding to the first slope, the second slope dx2 and a weight coefficient corresponding to the second slope; and a new fixed-point displacement X4 is obtained according to the third slope dx3, the third fixed-point displacement X3 and the preset interval time.

[0071] The first slope dx1 is dx1=(X2-X1) / t.

[0072] The second slope dx2 is dx2=(X3-X2) / t.

[0073] The third slope dx3 is dx3=A*dx1+B*dx2.

[0074] The new fixed-point displacement X4 is calculated by dx3=(X4-X3) / t.

[0075] Wherein, A is a weight coefficient corresponding to the first slope, B is a weight coefficient corresponding to the second slope, and t is the preset interval time.

[0076] S103, according to the size relationship between the new fixed-point displacement or the Nth fixed-point displacement and a displacement threshold, it is judged whether to control the washing machine to enter a high-speed dehydration stage.

[0077] In this step, when the new fixed-point displacement is less than a first displacement threshold and the slopes are all less than 0, it is determined that the clothes in the inner drum are uniformly distributed, and the washing machine is controlled to enter a high-speed dehydration stage; or when the Nth fixed-point displacement is less than or equal to a second displacement threshold, it is determined that the clothes in the inner drum are uniformly distributed, and the washing machine is controlled to enter a high-speed dehydration stage.

[0078] Wherein, the first displacement threshold and the second displacement threshold are determined according to the actual situation of the washing machine, and the embodiment does not limit how to obtain the first displacement threshold and the second displacement threshold.

[0079] The application provides a dehydration treatment method of a washing machine. N fixed point displacements of an outer drum of the washing machine are obtained at intervals by a sensor, a slope is obtained according to two adjacent fixed point displacements, a new fixed point displacement is calculated, and whether to control the washing machine to accelerate is determined according to the relationship between the Nth fixed point displacement or the new fixed point displacement and a displacement threshold. In the above manner, the distribution of clothes in the drum of the washing machine can be more intuitively determined according to the fixed point displacement of the outer drum, the distribution effect of the clothes is improved, the determination of whether the washing machine can enter a high-speed dehydration stage is more accurate, and the outer drum is prevented from colliding with the washing machine shell, thereby improving the user experience.

[0080] The application provides a dehydration treatment method of a washing machine. Figure 2 The application provides a dehydration treatment method of a washing machine.

[0081] Figure 2 A flowchart of a dehydration treatment method of a washing machine provided by an embodiment of the application is shown in Figure 2 . As shown in the figure, the method comprises the following steps. Figure 2

[0082] S201, a first displacement threshold is obtained according to the preset rotation speed and a preset mapping curve, and the preset mapping curve is used to indicate the mapping relationship between the rotation speed of the washing machine and the maximum displacement of the outer drum when the outer drum of the washing machine collides with the shell of the washing machine.

[0083] In this step, after obtaining N fixed point displacements, the maximum displacement of the outer drum corresponding to the preset rotation speed, i.e., the first displacement threshold, is obtained from the preset mapping curve according to the preset rotation speed. The maximum displacement of the outer drum is the displacement of the outer drum when the outer drum of the washing machine collides with the shell of the washing machine at the preset rotation speed.

[0084] The preset mapping curve is obtained by the following steps: the rotation speed of the washing machine is controlled to be unchanged, different position eccentric load weights are continuously increased until the limit state of the outer drum of the washing machine colliding with the shell of the washing machine appears, and all data of the outer drum not colliding with the shell is integrated. The rotation speed of the washing machine is changed, and the above steps are repeated to fit a curve of the rotation speed and the maximum displacement of the outer drum.

[0085] S202, the size relationship between the new fixed point displacement and the first displacement threshold and the size relationship between the Nth fixed point displacement and a second displacement threshold are obtained, and the second displacement threshold is the minimum displacement of the outer drum in the preset mapping curve.

[0086] ​In this step, when the clothes in the drum are evenly distributed, the eccentricity is small, and the collision between the outer drum and the washing machine shell is less likely to occur. Therefore, whether the clothes in the washing machine drum are evenly distributed can be determined by comparing the fixed point displacement of the outer drum of the washing machine and the maximum displacement of the outer drum when the outer drum of the washing machine collides with the shell of the washing machine.

[0087] Therefore, the trend of the fixed point displacement is determined according to the obtained slope. When the slope is greater than 0, the fixed point displacement decreases over time. When the slope is less than 0, the fixed point displacement increases over time. Whether the clothes in the inner drum are evenly distributed is determined according to the slope and the size relationship between the new fixed point displacement and the first displacement threshold. Or whether the clothes in the inner drum are evenly distributed is determined according to the size relationship between the Nth fixed point displacement and the smallest outer drum displacement in the preset mapping curve. According to the determination result, it is determined whether to control the washing machine to enter the high-speed dehydration stage.

[0088] S203, if the slope is less than 0 and the new fixed point displacement is less than the first displacement threshold, control the washing machine to enter the high-speed dehydration stage.

[0089] In this step, if the slope is less than 0, the fixed point displacement of the outer drum of the washing machine is smaller and smaller when the washing machine rotates at a preset speed. Therefore, when the new fixed point displacement is less than the first displacement threshold, it is considered that the subsequent fixed point displacement of the outer drum of the washing machine is less than the first displacement threshold, and the collision between the outer drum of the washing machine and the shell of the washing machine does not occur. Therefore, it is determined that the clothes in the drum of the washing machine are evenly distributed, and the washing machine can be controlled to enter the high-speed dehydration stage. The first displacement threshold is the outer drum displacement when the outer drum of the washing machine collides with the shell of the washing machine when the washing machine operates at a preset speed.

[0090] S204, if the Nth fixed point displacement is less than or equal to the second displacement threshold, control the washing machine to enter the high-speed dehydration stage.

[0091] In this step, if the slope is greater than or equal to 0, the fixed point of the outer drum of the washing machine does not decrease over time, but the washing machine always rotates at a preset speed, so the fixed point displacement of the outer drum of the washing machine changes little and becomes more and more stable over time. Therefore, whether the clothes in the inner drum of the washing machine are evenly distributed can be determined according to the size relationship between the last obtained fixed point displacement and the smallest outer drum displacement in the preset mapping curve.

[0092] Therefore, the smallest outer drum displacement, i.e. the second displacement threshold, is obtained from the preset mapping curve, and the size of the Nth fixed point displacement and the second displacement threshold is compared. When the Nth fixed point displacement is less than or equal to the second displacement threshold, it is considered that the subsequent fixed point displacement of the outer drum of the washing machine is also less than or equal to the second displacement threshold, and the collision between the outer drum of the washing machine and the shell of the washing machine does not occur. It is determined that the clothes in the inner drum of the washing machine are evenly distributed, and the washing machine can enter the high-speed dehydration stage.

[0093] The application provides a dehydration treatment method of a washing machine, a first displacement threshold value and a second displacement threshold value are obtained through a preset relationship, and when a new fixed-point displacement is less than the first displacement threshold value and a slope is less than 0 or an Nth fixed-point displacement is less than or equal to the second displacement threshold value, a high-speed dehydration stage is entered. Through the above manner, clothes in the washing machine drum can be more uniformly distributed, and the clothes distribution effect is improved.

[0094] Figure 3 The application embodiment provides a dehydration treatment method of a washing machine Figure 3 . As shown in the figure, the method comprises the following steps. Figure 4

[0095] S301, if the washing machine enters a high-speed dehydration stage, continuously acquiring a drum displacement of an outer drum of the washing machine.

[0096] In this step, when the washing machine enters the high-speed dehydration stage, the clothes in the drum can change the clothes distribution due to high rotation speed, so that the eccentricity is large, the outer drum of the washing machine and the machine shell collide, and even the whole machine is displaced. Therefore, when the washing machine enters the high-speed dehydration stage, the drum displacement of the washing machine needs to be continuously acquired, and whether the washing machine needs to be controlled to reduce speed is judged according to the drum displacement, and the clothes in the washing machine are redistributed.

[0097] S302, when the drum displacement is greater than or equal to a distance threshold value, controlling the washing machine to reduce speed to a preset rotation speed, and then acquiring N fixed-point displacements of the outer drum of the washing machine according to the preset interval time again.

[0098] In this step, when the acquired drum displacement of the washing machine is greater than the distance threshold value, the washing machine is controlled to reduce speed, the rotation speed of the washing machine is kept unchanged when the rotation speed is reduced to the preset rotation speed, N fixed-point displacements of the outer drum of the washing machine are acquired again according to the preset interval time, a new fixed-point displacement is acquired again, and whether the washing machine needs to enter the high-speed dehydration stage is judged again according to the size relationship between the Nth fixed-point displacement or the new fixed-point displacement and the displacement threshold value. The distance threshold value is determined according to the actual situation, and the embodiment does not make any limitation thereto.

[0099] S303, when the number of times of acquiring N fixed-point displacements of the outer drum of the washing machine according to the preset interval time is greater than a preset number of times, the washing machine is controlled to stop running.

[0100] ​In this step, if the number of times of acquiring the N fixed point displacements of the outer drum of the washing machine according to the preset interval time is greater than the preset number of times, it is considered that the clothes in the washing machine may be knotted and entangled, which hinders the uniform distribution of the clothes in the washing drum, and the washing machine needs to be stopped and controlled to accelerate to the preset speed again, and the N fixed point displacements of the outer drum of the washing machine are acquired again at intervals, and it is determined whether the clothes in the washing machine are uniformly distributed, and it is determined whether the washing machine needs to enter the high-speed dehydration stage according to the determination result.

[0101] The preset number of times is determined according to actual conditions, and the embodiment is not limited in any way. For example, the preset number of times can be 4 times.

[0102] The application provides a dehydration processing method of a washing machine. The outer drum displacement of the washing machine in the high-speed dehydration stage is acquired, the speed is reduced when the drum displacement exceeds the limit, and the fixed point displacement is acquired again according to the preset interval time. When the number of N fixed point displacements acquired is greater than the preset number of times, the washing machine is stopped. Through the above method, the problem of uneven distribution of clothes and large eccentricity of the washing machine in the dehydration stage is prevented.

[0103] Figure 5 A structure diagram of a dehydration control device of a washing machine is provided in the embodiment of the application. The control device comprises an acquisition module 401, a calculation module 402 and a determination module 403, wherein:

[0104] The acquisition module 401 is configured to acquire the rotating speed of the washing machine, and acquire N fixed point displacements of the outer drum of the washing machine according to a preset interval time when the rotating speed of the washing machine is a preset rotating speed.

[0105] The calculation module 402 is configured to calculate the slope of the fixed point displacements acquired at adjacent two times with respect to the preset interval time, and calculate a new fixed point displacement according to the slope.

[0106] The determination module 403 is configured to determine whether the washing machine enters the high-speed dehydration stage according to the size relationship between the new fixed point displacement or the Nth fixed point displacement and a displacement threshold.

[0107] In a possible implementation, the N is equal to 3, and the calculation module 402 is further configured to acquire a first slope according to the difference between the second fixed point displacement and the first fixed point displacement and the preset interval time, and acquire a second slope according to the difference between the third fixed point displacement and the second fixed point displacement and the preset interval time.

[0108] The third slope is acquired according to the first slope, the weight coefficient corresponding to the first slope, the second slope and the weight coefficient corresponding to the second slope.

[0109] According to the third slope, the third fixed-point displacement and the preset interval time, a new fixed-point displacement is obtained.

[0110] In a possible implementation, the judging module 403 is further configured to obtain a first displacement threshold according to the preset rotating speed and a preset mapping curve, the preset mapping curve being used to indicate a mapping relationship between the rotating speed of the washing machine and the maximum displacement of the outer drum when the outer drum collides with the washing machine shell.

[0111] According to the new fixed-point displacement and the first displacement threshold, or the Nth fixed-point displacement and a second displacement threshold, it is determined whether to control the washing machine to enter a high-speed dehydration stage, the second displacement threshold being the minimum displacement of the outer drum in the preset mapping curve.

[0112] In a possible implementation, the judging module 403 is further configured to control the washing machine to enter the high-speed dehydration stage if the slope is less than 0 and the new fixed-point displacement is less than the first displacement threshold.

[0113] In a possible implementation, the judging module 403 is further configured to control the washing machine to enter the high-speed dehydration stage if the Nth fixed-point displacement is less than or equal to the second displacement threshold.

[0114] In a possible implementation, the judging module 403 is further configured to continuously obtain the drum displacement of the outer drum of the washing machine if the washing machine enters the high-speed dehydration stage.

[0115] When the drum displacement is greater than or equal to a distance threshold, the washing machine is controlled to reduce the rotating speed to the preset rotating speed, and then N fixed-point displacements of the outer drum of the washing machine are obtained again according to the preset interval time.

[0116] In a possible implementation, the judging module 403 is further configured to control the washing machine to stop running when the number of times of obtaining N fixed-point displacements of the outer drum of the washing machine according to the preset interval time is greater than a preset number of times.

[0117] Figure 5 A structural schematic diagram of a washing machine is provided in an embodiment of the present application. As shown in the figure, the washing machine 50 includes at least one processor 501, a memory 502 and a six-axis acceleration sensor 503, wherein: ​

[0118] The memory 502 is configured to store computer execution instructions.

[0119] The six-axis acceleration sensor 503 is configured to obtain fixed-point displacements of the outer drum of the washing machine.

[0120] ​The at least one processor 501 is configured to execute the computer-executable instructions stored in the memory 502, so that the at least one processor 501 executes the technical solutions of the dehydration treatment method of the washing machine.

[0121] The at least one processor 501 can be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0122] Optionally, in a specific implementation, the processor 501 and the memory 502 are implemented independently, and the processor 501 and the memory 502 can be connected to each other through a bus and complete communication between each other. The bus can be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc., but it does not mean that there is only one bus or one type of bus.

[0123] Optionally, in a specific implementation, if the processor 501 and the memory 502 are integrated on a chip, the processor 501 and the memory 502 can complete communication through an internal interface.

[0124] The present application also provides a computer storage medium, and the computer storage medium stores computer-executable instructions. When the processor executes the computer-executable instructions, the technical solutions of the dehydration treatment method of the washing machine are implemented.

[0125] The computer-readable storage medium described above can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic storage, a flash memory, a magnetic disk or an optical disk. The computer-readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0126] An example readable storage medium is coupled to the processor such that the processor is able to read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in the control device of the laundry treating apparatus.

[0127] The division of the units is only a logical function division, and in actual implementation, there can be another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0128] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0129] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0130] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the part of the present application that essentially contributes to the prior art or the part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0131] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware. The foregoing program can be stored in a computer readable storage medium. The program executes to perform the steps of the above-mentioned method embodiments; and the foregoing storage medium includes various storage media that can store program codes, such as ROM, RAM, magnetic disk or optical disk.

[0132] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A spin-drying method of a washing machine, characterized by, The method comprises: acquiring a rotation speed of a washing machine, and acquiring N fixed-point displacements of an outer drum of the washing machine at a preset interval time when the rotation speed of the washing machine is a preset rotation speed; calculating a slope of the fixed-point displacements acquired at two adjacent times with respect to the preset interval time, and calculating a new fixed-point displacement according to the slope; judging whether to control the washing machine to enter a high-speed dehydration stage according to a size relationship between the new fixed-point displacement or the Nth fixed-point displacement and a displacement threshold value; the N is equal to 3, the calculating the slope of the fixed-point displacements acquired at two adjacent times with respect to the preset interval time, and the calculating the new fixed-point displacement according to the slope, comprise: acquiring a first slope according to a difference between a second fixed-point displacement and a first fixed-point displacement and the preset interval time, and acquiring a second slope according to a difference between a third fixed-point displacement and the second fixed-point displacement and the preset interval time; acquiring a third slope according to the first slope, a weight coefficient corresponding to the first slope, the second slope and a weight coefficient corresponding to the second slope; acquiring the new fixed-point displacement according to the third slope, the third fixed-point displacement and the preset interval time.

2. The method of claim 1, wherein, the judging whether to control the washing machine to enter the high-speed dehydration stage according to the size relationship between the new fixed-point displacement or the Nth fixed-point displacement and the displacement threshold value, comprise: acquiring a first displacement threshold value according to the preset rotation speed and a preset mapping curve, the preset mapping curve being used to indicate a mapping relationship between a rotation speed of the washing machine and a maximum displacement of the outer drum when the outer drum collides with a shell of the washing machine; judging whether to control the washing machine to enter the high-speed dehydration stage according to the new fixed-point displacement and the first displacement threshold value, or the Nth fixed-point displacement and a second displacement threshold value, the second displacement threshold value being a minimum outer drum displacement in the preset mapping curve.

3. The method of claim 2, wherein, the judging whether to control the washing machine to enter the high-speed dehydration stage according to the new fixed-point displacement and the first displacement threshold value, comprise: if the slope is less than 0 and the new fixed-point displacement is less than the first displacement threshold value, controlling the washing machine to enter the high-speed dehydration stage.

4. The method of claim 3, wherein, the judging whether to control the washing machine to enter the high-speed dehydration stage according to the Nth fixed-point displacement and the second displacement threshold value, comprise: if the Nth fixed-point displacement is less than or equal to the second displacement threshold value, controlling the washing machine to enter the high-speed dehydration stage.

5. The method of claim 1, wherein, the method further comprises: if the washing machine enters the high-speed dehydration stage, continuously acquiring a drum displacement of the outer drum of the washing machine; when the drum displacement is greater than or equal to a distance threshold value, controlling the washing machine to reduce speed to the preset rotation speed, and then acquiring N fixed-point displacements of the outer drum of the washing machine at the preset interval time again.

6. The method of claim 5, wherein, the method further comprises: when a number of times of acquiring N fixed-point displacements of the outer drum of the washing machine at the preset interval time is greater than a preset number of times, controlling the washing machine to stop running.

7. A spin control device for a washing machine, characterized by comprising: comprise: an acquiring module, a calculating module and a judging module, wherein: The acquisition module is configured to acquire a rotation speed of the washing machine, and when the rotation speed of the washing machine is a preset rotation speed, acquire N fixed-point displacements of the outer drum of the washing machine at preset interval times; The calculation module is configured to calculate a slope of the fixed-point displacements acquired at two adjacent times with respect to the preset interval time, and calculate a new fixed-point displacement according to the slope; The judgment module is configured to judge whether to control the washing machine to enter a high-speed dehydration stage according to a size relationship between the new fixed-point displacement or the Nth fixed-point displacement and a displacement threshold value; The N is equal to 3, and the calculation module is specifically configured to acquire a first slope according to a difference between a second fixed-point displacement and a first fixed-point displacement and the preset interval time, acquire a second slope according to a difference between a third fixed-point displacement and the second fixed-point displacement and the preset interval time, acquire a third slope according to the first slope, a weight coefficient corresponding to the first slope, the second slope and a weight coefficient corresponding to the second slope, and acquire the new fixed-point displacement according to the third slope, the third fixed-point displacement and the preset interval time.

8. A laundry machine characterized by Comprise: At least one processor, a memory and a six-axis acceleration sensor, wherein: The memory is configured to store computer execution instructions; The six-axis acceleration sensor is configured to acquire the fixed-point displacement of the outer drum of the washing machine; The at least one processor is configured to execute the computer execution instructions stored in the memory, so that the at least one processor executes the method in any one of claims 1 to 6.

9. A computer storage medium, characterized in that The computer storage medium stores computer execution instructions, and the computer execution instructions are executed by the processor to implement the method in any one of claims 1 to 6.

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