Washing machine dehydration control method and device considering eccentric treatment

Abstract

The invention discloses a washing machine dehydration control method and device considering eccentric treatment. The method comprises the steps that in the process of controlling the washing machine to execute pre-dewatering operation, vibration data of an outer barrel in the washing machine are obtained according to a preset time interval, and the pre-dewatering operation refers to dewatering operation executed in the speed increasing process of an inner barrel of the washing machine; determining the deviation rate of the washing machine according to the vibration data and the standard vibration data; adjusting a preset rotating speed increasing strategy of the inner cylinder according to the deviation rate to obtain a target rotating speed increasing strategy; after the rotating speed is increased to the preset rotating speed according to the target rotating speed increasing strategy, the inner barrel is controlled to execute main dewatering operation according to the preset rotating speed, and dewatering treatment on the to-be-dewatered clothes is completed. The technical problems that delay or misjudgment exists in eccentricity detection in the dehydration process of the washing machine through a traditional method in the related technology, the whole dehydration process is prolonged due to repeated eccentricity detection and treatment, and the dehydration efficiency of the washing machine is seriously affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliance control, and in particular to a washing machine dehydration control method and device taking eccentricity processing into consideration. Background Art

[0002] At present, the existing fully automatic washing machines mainly include drum washing machines and pulsator washing machines, and the outer barrel is suspended on the box by four suspension rods distributed at the four corners of the washing machine. Since the plane on which the washing machine is installed has an inclined angle or the user places the clothes unevenly, eccentricity is inevitable during the washing and dehydration process. Taking the drum washing machine as an example, the current dehydration process is divided into two stages, eccentricity detection stage + speed-up dehydration stage; if there is no eccentricity detection stage, the speed-up dehydration is directly carried out, which can easily cause the washing machine to hit the barrel, thereby causing the whole machine to shift and generate noise, bringing certain safety hazards and increasing user troubles.

[0003] For the eccentricity detection stage, the current main approach is to detect and control the eccentricity state of the washing machine by detecting the impact switch, detecting the power, voltage, current and other parameters during each motor speed-up process, or by detecting the fluctuation of actual acceleration. However, these methods have certain delays and misjudgments.

[0004] When eccentricity is detected, the general treatment is to slow down, unwind again, and then speed up again to determine the eccentricity. If one attempt fails, it will continue for n times until the whole machine is not eccentric, and finally speed up the dehydration according to the set fixed speed increase steps. Such repeated treatment of eccentricity will make the whole dehydration process take a long time.

[0005] There is currently no effective solution to the problem that the traditional method used in the above-mentioned related technologies for detecting eccentricity during the dehydration process of the washing machine is delayed or misjudged, and repeated eccentricity detection and processing will cause the entire dehydration process to become longer, seriously affecting the dehydration efficiency of the washing machine. Summary of the invention

[0006] The embodiments of the present invention provide a washing machine dehydration control method and device taking eccentricity processing into consideration, so as to at least solve the technical problems in the related art that the conventional method for eccentricity detection in the dehydration process of the washing machine is delayed or misjudged, and repeated eccentricity detection and processing will cause the entire dehydration process to be prolonged, thus seriously affecting the dehydration efficiency of the washing machine.

[0007] According to one aspect of an embodiment of the present invention, a method for controlling a washing machine dehydration taking into account eccentricity processing is provided, comprising: in the process of controlling the washing machine to perform a pre-dehydration operation, obtaining vibration data of an outer drum in the washing machine at predetermined time intervals, the pre-dehydration operation referring to a dehydration operation performed during the speed increase of an inner drum of the washing machine; determining a deviation rate of the washing machine according to the vibration data and standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs the dehydration operation in an unloaded state, and the deviation rate is used to reflect the deviation of the clothes to be dehydrated in the inner drum of the washing machine. the eccentricity degree, the no-load state refers to the state when the inner drum does not contain the clothes to be dehydrated; the preset speed increase strategy of the inner drum is adjusted according to the deviation rate to obtain the target speed increase strategy, wherein the preset speed increase strategy is a preset strategy for controlling the speed of the inner drum to increase the speed; after the speed is increased to a preset speed according to the target speed increase strategy, the inner drum is controlled to perform a main dehydration operation at the preset speed to complete the dehydration process of the clothes to be dehydrated, wherein the main dehydration operation refers to the dehydration operation performed when the inner drum is running at a preset speed.

[0008] Optionally, in the process of controlling the washing machine to perform a pre-spinning operation, vibration data of the outer drum in the washing machine is obtained at predetermined time intervals, including: in the process of controlling the washing machine to perform the pre-spinning operation, using a posture sensor to obtain multiple target vibration data of the outer drum in a target axis direction at the predetermined time intervals, wherein the posture sensor is installed on the barrel wall of the outer drum, and the target axis direction is the axis direction in which the eccentricity detection accuracy of the posture sensor is higher than the accuracy threshold; obtaining the absolute value of each of the target vibration data to obtain absolute target vibration data corresponding to each of the target vibration data; and determining the largest absolute target vibration data as the vibration data.

[0009] Optionally, a plurality of target vibration data of the outer barrel in a target axial direction are obtained using a posture sensor at the predetermined time interval, including: obtaining a vibration data group of the outer barrel in each axial direction using the posture sensor, wherein the vibration data group includes a plurality of initial vibration data obtained within a predetermined time length; analyzing the eccentricity detection accuracy of each axial direction according to each vibration data group to obtain an analysis result; determining that the axial direction corresponding to the maximum eccentricity detection accuracy is the target axial direction according to the analysis result; and determining that a plurality of the initial vibration data in the vibration data group corresponding to the target axial direction are a plurality of target vibration data.

[0010] Optionally, the posture sensor is used to obtain a vibration data group of the outer barrel in each axial direction, including: using the posture sensor to obtain a plurality of original vibration data of the outer barrel in each axial direction at the predetermined time interval; filtering and formatting each of the original vibration data to obtain the initial vibration data corresponding to each of the original vibration data; integrating the plurality of initial vibration data belonging to the same axial direction to obtain the vibration data group corresponding to each axial direction.

[0011] Optionally, determining the deviation rate of the washing machine according to the vibration data and the standard vibration data includes: determining the deviation rate of the washing machine according to the vibration data and the standard vibration data using a first formula, wherein the first formula is: P represents the deviation rate, W max represents the vibration data, and W represents the standard vibration data.

[0012] Optionally, adjusting the preset speed increase strategy of the inner drum according to the deviation rate to obtain a target speed increase strategy includes: determining the original acceleration of the speed of the inner drum during the pre-dehydration operation according to the preset speed increase strategy; and updating the original acceleration according to the deviation rate using a second formula to obtain a target acceleration, wherein the second formula is: a represents the original acceleration, a ′ represents the target acceleration; and uses a strategy of controlling the speed to increase according to the target acceleration as the target speed increase strategy.

[0013] Optionally, the vibration data includes first vibration data and second vibration data, and the target speed increase strategy includes a first target speed increase strategy and a second target speed increase strategy. After the speed is increased to a preset speed according to the target speed increase strategy, the inner drum is controlled to perform a main dehydration operation according to the preset speed to complete the dehydration process of the clothes to be dehydrated, including: dividing the speed of the inner drum during the control of the washing machine to perform the pre-dehydration operation into low speed, medium speed and high speed, wherein the low speed is less than the medium speed, and the medium speed is less than the high speed; in the process of controlling the inner drum to run at a first speed, generating a first target speed increase strategy for the speed according to the first vibration data of the outer drum, wherein the first vibration data is the vibration data obtained during the operation of the inner drum at the first speed; when the preset speed belongs to the intermediate speed In the case of a high speed, after the speed is increased to the preset speed according to the first target speed increasing strategy, the inner drum is controlled to perform the main dehydration operation according to the preset speed to complete the dehydration treatment of the clothes to be dehydrated; when the preset speed belongs to the high speed, the speed is increased to a second speed according to the first target speed increasing strategy, wherein the second speed is greater than the first speed; in the process of controlling the inner drum to run at the second speed, a second target speed increasing strategy for the speed is generated according to second vibration data of the outer tub, wherein the second vibration data is the vibration data obtained during the operation of the inner drum at the second speed; after the speed is increased to the preset speed according to the second target speed increasing strategy, the inner drum is controlled to perform the main dehydration operation according to the preset speed to complete the dehydration treatment of the clothes to be dehydrated.

[0014] According to another aspect of an embodiment of the present invention, a washing machine dehydration control device taking eccentricity processing into consideration is also provided, comprising: a first acquisition unit, used to acquire vibration data of the outer drum in the washing machine at predetermined time intervals during the process of controlling the washing machine to perform a pre-dehydration operation, wherein the pre-dehydration operation refers to a dehydration operation performed during the speed increase of the inner drum of the washing machine; a determination unit, used to determine the deviation rate of the washing machine based on the vibration data and standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs the dehydration operation in an unloaded state, and the deviation rate is used to reflect the deviation of the clothes to be dehydrated in the inner drum of the washing machine. the eccentricity degree, the no-load state refers to the state when the inner drum does not contain the clothes to be dehydrated; a second acquisition unit is used to adjust the preset speed increase strategy of the inner drum according to the deviation rate to obtain a target speed increase strategy, wherein the preset speed increase strategy is a preset strategy for controlling the speed of the inner drum to increase the speed; a control unit is used to increase the speed to a preset speed according to the target speed increase strategy, and then control the inner drum to perform a main dehydration operation at the preset speed to complete the dehydration of the clothes to be dehydrated, wherein the main dehydration operation refers to the dehydration operation performed when the inner drum is running at a preset speed.

[0015] Optionally, the first acquisition unit includes: a first acquisition module, used to obtain a plurality of target vibration data of the outer barrel on the target axis using a posture sensor at the predetermined time interval during the process of controlling the washing machine to perform the pre-spinning operation, wherein the posture sensor is installed on the barrel wall of the outer barrel, and the target axis is the axis in which the eccentricity detection accuracy of the posture sensor is higher than the accuracy threshold; a second acquisition module, used to obtain the absolute value of each of the target vibration data to obtain the absolute target vibration data corresponding to each of the target vibration data; a first determination module, used to determine the largest absolute target vibration data as the vibration data.

[0016] Optionally, the first acquisition module includes: a first acquisition submodule, used to use the posture sensor to obtain a vibration data group of the outer barrel in each axis, wherein the vibration data group includes a plurality of initial vibration data acquired within a predetermined time length; a second acquisition submodule, used to analyze the eccentricity detection accuracy of each axis according to each vibration data group to obtain an analysis result; a first determination submodule, used to determine that the axis corresponding to the maximum eccentricity detection accuracy is the target axis according to the analysis result; and a second determination submodule, used to determine that a plurality of the initial vibration data in the vibration data group corresponding to the target axis are a plurality of target vibration data.

[0017] Optionally, the first acquisition submodule includes: a third acquisition submodule, used to obtain multiple original vibration data of the outer barrel in each axis direction using the posture sensor according to the predetermined time interval; a fourth acquisition submodule, used to filter and convert the format of each original vibration data to obtain the initial vibration data corresponding to each original vibration data; and a fifth acquisition submodule, used to integrate multiple initial vibration data belonging to the same axis direction to obtain the vibration data group corresponding to each axis direction.

[0018] Optionally, the determination unit includes: a second determination module, configured to determine the deviation rate of the washing machine using a first formula according to the vibration data and the standard vibration data, wherein the first formula is: P represents the deviation rate, W max represents the vibration data, and W represents the standard vibration data.

[0019] Optionally, the second acquisition unit includes: a third determination module, used to determine the original acceleration of the speed of the inner drum during the pre-dehydration operation according to the preset speed increase strategy; a third acquisition module, used to update the original acceleration according to the deviation rate using a second formula to obtain a target acceleration, wherein the second formula is: a represents the original acceleration, a ′ represents the target acceleration; and a fourth determining module, configured to use a strategy for controlling the speed to increase according to the target acceleration as the target speed increase strategy.

[0020] Optionally, the vibration data includes first vibration data and second vibration data, the target speed increase strategy includes a first target speed increase strategy and a second target speed increase strategy, and the control unit includes: a division module, used to divide the speed of the inner drum during the process of controlling the washing machine to perform the pre-spinning operation into low speed, medium speed and high speed, wherein the low speed is less than the medium speed, and the medium speed is less than the high speed; a first generation module, used to generate a first target speed increase strategy for the speed according to the first vibration data of the outer barrel during the process of controlling the inner drum to run at the first speed, wherein the first vibration data is the vibration data obtained during the operation of the inner drum at the first speed; a first control module, used to increase the speed to the preset speed according to the first target speed increase strategy when the preset speed belongs to the medium speed. The preset speed is controlled, and the inner drum is controlled to perform the main dehydration operation according to the preset speed to complete the dehydration treatment of the clothes to be dehydrated; an adjustment module is used to increase the speed to a second speed according to the first target speed increase strategy when the preset speed belongs to the high speed, wherein the second speed is greater than the first speed; a second generation module is used to generate a second target speed increase strategy for the speed according to the second vibration data of the outer barrel during the process of controlling the inner drum to run at the second speed, wherein the second vibration data is the vibration data obtained during the operation of the inner drum at the second speed; a second control module is used to control the inner drum to perform the main dehydration operation according to the preset speed after the speed is increased to the preset speed according to the second target speed increase strategy, so as to complete the dehydration treatment of the clothes to be dehydrated.

[0021] According to another aspect of an embodiment of the present invention, a washing machine dehydration control system considering eccentricity treatment is provided. The washing machine dehydration control system considering eccentricity treatment uses any of the above-mentioned washing machine dehydration control methods considering eccentricity treatment.

[0022] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is further provided, the computer-readable storage medium comprising a stored program, wherein the program executes any one of the above-mentioned washing machine dehydration control methods considering eccentricity processing.

[0023] According to another aspect of an embodiment of the present invention, a processor is further provided, the processor being used to run a program, wherein when the program is run, any one of the above-mentioned washing machine dehydration control methods considering eccentricity processing is executed.

[0024] According to another aspect of an embodiment of the present invention, a computer program product is further provided, comprising computer instructions, which, when executed by a processor, perform any one of the above-mentioned washing machine dehydration control methods taking eccentricity processing into consideration.

[0025] In an embodiment of the present invention, in the process of controlling the washing machine to perform a pre-spin operation, vibration data of the outer drum in the washing machine is obtained at predetermined time intervals, and the pre-spin operation refers to the spin operation performed during the speed increase process of the inner drum of the washing machine; the deviation rate of the washing machine is determined based on the vibration data and standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs a spin operation in an unloaded state, and the deviation rate is used to reflect the eccentricity of the clothes to be spinned in the inner drum of the washing machine, and the unloaded state refers to the state when there are no clothes to be spinned in the inner drum; the preset speed increase strategy of the inner drum is adjusted according to the deviation rate to obtain a target speed increase strategy, wherein the preset speed increase strategy is a pre-set strategy for controlling the speed of the inner drum to increase the speed; after the speed is increased to a preset speed according to the target speed increase strategy, the inner drum is controlled to perform a main spin operation at a preset speed to complete the dehydration of the clothes to be spinned, wherein the main spin operation refers to a spin operation performed during the operation of the inner drum at a preset speed. Through the above technical scheme, the purpose of judging the eccentricity of the clothes in the inner drum by analyzing the vibration data of the outer drum of the washing machine and adjusting the rotation speed of the inner drum is achieved, and the technical effect of automatically selecting the appropriate speed increase method in the early stage of dehydration speed increase and automatically adjusting the optimal speed increase curve is achieved. It not only saves the time of repeated attempts caused by dehydration failures, but also reduces the noise caused by hitting the drum due to eccentricity, thereby improving the success rate of dehydration and the user experience. It further solves the technical problems in the related art that the traditional method of eccentricity detection in the dehydration process of the washing machine is delayed or misjudged, and repeated eccentricity detection and processing will cause the entire dehydration process to become longer, seriously affecting the dehydration efficiency of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 is a hardware structure block diagram of a mobile terminal of a washing machine dehydration control method considering eccentricity processing according to an embodiment of the present invention;

[0028] Figure 2 is a flow chart of a washing machine dehydration control method considering eccentricity processing according to an embodiment of the present invention;

[0029] Figure 3 is a flow chart of a washing process of a washing machine according to an embodiment of the present invention;

[0030] Figure 4 is a flow chart of an optional washing machine dehydration control method considering eccentricity processing according to an embodiment of the present invention;

[0031] Figure 5 is a schematic diagram of a gesture sensor according to an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram comparing speed increase curves before and after adjustment according to an embodiment of the present invention;

[0033] Figure 7 2 is a schematic diagram of a washing machine dehydration control device considering eccentricity processing according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] As introduced in the background technology, the conventional method used in the related art for detecting the eccentricity during the dehydration process of the washing machine has a delay or misjudgment, and repeated eccentricity detection and processing will cause the entire dehydration process to be prolonged, seriously affecting the dehydration efficiency of the washing machine. In view of the above defects, a dehydration control method and device for a washing machine taking eccentricity processing into consideration are provided in an embodiment of the present invention.

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] The method embodiments provided in the embodiments of the present invention can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 1 is a hardware structure block diagram of a mobile terminal of a washing machine dehydration control method considering eccentricity processing according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.

[0039] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the washing machine dehydration control method considering eccentricity treatment in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0040] According to an embodiment of the present invention, a method embodiment of a washing machine dehydration control method taking into account eccentric processing is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0041] Figure 2 is a flow chart of a washing machine dehydration control method considering eccentricity processing according to an embodiment of the present invention. Figure 2 As shown, the method comprises the following steps:

[0042] Step S202, in the process of controlling the washing machine to perform a pre-spin operation, obtaining vibration data of the outer drum in the washing machine at a predetermined time interval, the pre-spin operation referring to the spin operation performed during the speed increase process of the inner drum of the washing machine.

[0043] In this embodiment, the real-time motion state data (ie, vibration data) of the outer drum can be obtained during the dehydration speed increase process of the washing machine, so as to analyze the eccentric state of the clothes in the inner drum based on the vibration data.

[0044] Step S204, determining the deviation rate of the washing machine based on the vibration data and the standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs a dehydration operation in an empty state, and the deviation rate is used to reflect the degree of eccentricity of the clothes to be dehydrated in the inner drum of the washing machine, and the empty state refers to the state when there are no clothes to be dehydrated in the inner drum.

[0045] In this embodiment, the deviation rate can be calculated based on the vibration data obtained in the above step S202 and the standard vibration data of the outer drum obtained when the washing machine performs a dehydration operation in an unloaded state, so as to analyze the eccentricity of the clothes to be dehydrated in the inner drum of the washing machine.

[0046] Step S206, adjusting the preset speed increase strategy of the inner drum according to the deviation rate to obtain a target speed increase strategy, wherein the preset speed increase strategy is a preset strategy for controlling the speed increase of the inner drum.

[0047] In this embodiment, since the clothes are already eccentrically placed, directly turning on a high speed will result in excessive noise, collision with the barrel and displacement and other undesirable situations; therefore, when the eccentricity is out of range, the clothes need to be rotated at as low a speed as possible. Due to the centripetal force, the clothes will be lifted up and dropped by the inner barrel, and this process will redistribute the clothes; that is, the acceleration of the speed in the pre-spinning stage can be adjusted according to the calculated deviation rate to improve its speed increase curve, thereby reducing or eliminating the influence of the eccentricity.

[0048] Step S208, after the speed is increased to the preset speed according to the target speed increase strategy, the inner drum is controlled to perform the main dehydration operation at the preset speed to complete the dehydration of the clothes to be dehydrated, wherein the main dehydration operation refers to the dehydration operation performed while the inner drum is running at the preset speed.

[0049] In this embodiment, the inner drum of the washing machine can be controlled to increase its speed during the pre-spin stage according to the speed increase curve obtained in the above steps. After increasing to the target speed (preset speed) preset by the user or the program, it enters the main spin stage, and the inner drum is controlled to be dehydrated at the preset speed.

[0050] It can be seen from the above that, through the technical solution provided by the above embodiment of the present invention, in the process of controlling the washing machine to perform a pre-spinning operation, the vibration data of the outer drum in the washing machine can be obtained at predetermined time intervals, and the pre-spinning operation refers to the spin operation performed during the speed increase process of the inner drum of the washing machine; the deviation rate of the washing machine is determined according to the vibration data and the standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs a spin operation in an empty state, and the deviation rate is used to reflect the eccentricity of the clothes to be spinned in the inner drum of the washing machine, and the empty state refers to the state when there are no clothes to be spinned in the inner drum; the preset speed increase strategy of the inner drum is adjusted according to the deviation rate to obtain the target speed increase strategy, wherein the preset speed increase strategy is pre-set A strategy for controlling the speed of the inner drum to increase the speed; after the speed is increased to a preset speed according to the target speed increase strategy, the inner drum is controlled to perform a main dehydration operation at the preset speed to complete the dehydration of the clothes to be dehydrated, wherein the main dehydration operation refers to the dehydration operation performed while the inner drum is running at a preset speed, and the purpose of judging the eccentricity of the clothes in the inner drum by analyzing the vibration data of the outer drum of the washing machine and adjusting the speed of the inner drum is achieved, and the technical effect of automatically selecting a suitable speed increase method in the early stage of dehydration speed increase and automatically adjusting the optimal speed increase curve is achieved, which not only saves the time of repeated attempts caused by dehydration failures, but also reduces the noise caused by hitting the barrel due to eccentricity, improves the success rate of dehydration, and improves the user experience.

[0051] Therefore, the technical solution provided by the above-mentioned embodiment of the present invention solves the technical problems in the related art that the traditional method used in the conventional art for detecting eccentricity during the dehydration process of the washing machine is delayed or misjudged, and repeated eccentricity detection and processing will cause the entire dehydration process to be prolonged, thus seriously affecting the dehydration efficiency of the washing machine.

[0052] Combine the following Figure 3 , Figure 4 , Figure 5 and Figure 6 The above embodiments of the present invention are described in detail. Figure 3 is a flow chart of a washing process of a washing machine according to an embodiment of the present invention, Figure 4 is a flow chart of an optional washing machine dehydration control method considering eccentricity processing according to an embodiment of the present invention, Figure 5 is a schematic diagram of a gesture sensor according to an embodiment of the present invention; Figure 6 3 is a schematic diagram comparing the speed increase curves before and after adjustment according to an embodiment of the present invention.

[0053] like Figure 3 and Figure 4 As shown, when analyzing and processing the eccentricity in the dehydration process of the washing machine, the main controller and Figure 5 The gesture sensors shown in the figure can be used to cooperate with each other to achieve this. For example, the gesture sensors can be used to collect data, and then the main controller can be used to process the data collected by the gesture sensors to analyze and process the eccentricity phenomenon in the dehydration process of the washing machine.

[0054] The attitude sensor is a component used to measure the motion state of an object. For example, the MPU605x is a 6-axis motion processing component that includes a 3-axis accelerometer and a 3-axis gyroscope. Its main function is to obtain the inclination angles (pitch, roll, and yaw) of the object to be measured (such as a quadcopter or a balancing car) on the x, y, and z axes. The accelerometer is actually a force sensor, which is used to detect how much force is applied in the up, down, left, right, front, and back directions, and can also be used to calculate the angle. The gyroscope is an angular velocity detector. For example, if a plane rotates to 90 degrees in 1 second, its angular velocity on the X-axis is 90 degrees / second, which reflects the speed of rotation. Therefore, the attitude sensor can be used to collect the vibration data of the outer drum during the speed-up process of the washing machine to analyze and process the eccentricity phenomenon during the dehydration process of the washing machine.

[0055] like Figure 3 As shown, the entire operation process of the washing machine is as follows: since the attitude sensor and the main controller have errors when they are installed or shipped from the factory, they first need to be zeroed and initialized; then the clothes to be dehydrated in the inner drum need to be weighed. Since the weight of the clothes to be dehydrated determines the load of the washing machine and has a certain influence on the subsequent eccentricity detection and processing, weighing them is also a necessary process; then the washing and draining processes can be carried out. After the draining operation of the washing machine is completed, the pre-dehydration stage of the dehydration operation (i.e., the stage corresponding to the pre-dehydration operation in the embodiment of the present invention) is entered. Eccentricity detection is performed in this stage, and then the main dehydration stage (i.e., the stage corresponding to the main dehydration operation in the embodiment of the present invention) is entered to execute the dehydration process, thereby completing the entire operation process of the washing machine.

[0056] Specifically, the dehydration operation of the washing machine is generally divided into two stages: a speed-up stage (the stage corresponding to the pre-dehydration operation in the embodiment of the present invention, i.e., the pre-dehydration stage) and a constant speed dehydration stage (i.e., the stage corresponding to the main dehydration operation in the embodiment of the present invention, i.e., the main dehydration stage); the two stages are described in detail below: 1) Speed-up stage: When the washing machine starts to dehydrate, the inner drum gradually accelerates from a stationary state to a higher speed. The purpose of this stage is to reach a speed that can effectively dehydrate as soon as possible. Usually, this speed is much higher than the speed during daily washing. During the speed-up process, the washing machine gradually increases the speed of the inner drum by adjusting the output of the motor; if At this stage, the eccentricity of the clothes is detected, and the acceleration of the inner drum speed can be adjusted by analyzing the eccentricity of the clothes to reduce the eccentricity; 2) Constant speed dehydration stage: Once the inner drum reaches the preset dehydration speed, it will enter the constant speed dehydration stage. At this stage, the inner drum maintains a constant high-speed rotation to generate sufficient centrifugal force to shake out the water on the clothes. The constant speed dehydration stage is the time when the actual dehydration operation occurs, and it will last until the end of the set dehydration cycle. At this stage, the washing machine will continue to monitor the eccentricity to ensure stability and safety. If the eccentricity is serious, it may be necessary to reduce the speed or pause the dehydration for readjustment.

[0057] In the embodiment provided by the present invention, a drum washing machine can be taken as an example, and a posture sensor is installed on the washing outer drum. The posture sensor feeds back the motion state data (i.e., vibration data) to the main controller of the washing machine in real time through a communication method (serial communication, IIC communication, etc.). The collected data includes acceleration and gyroscope data (i.e., angular velocity data) in three axes, such as Figure 5 As shown, the attitude sensor can be installed on the outer barrel, and the outer barrel is connected by 4 spring suspension rods. When the washing machine is working, the outer barrel can show an eccentric state, which is measured by the attitude sensor.

[0058] According to the above embodiment of the present invention, in the above step S202, in the process of controlling the washing machine to perform a pre-spinning operation, the vibration data of the outer drum in the washing machine is obtained at a predetermined time interval, including: in the process of controlling the washing machine to perform a pre-spinning operation, using a posture sensor to obtain multiple target vibration data of the outer drum on the target axis at a predetermined time interval, wherein the posture sensor is installed on the barrel wall of the outer drum, and the target axis is the axis in which the eccentricity detection accuracy of the posture sensor is higher than the accuracy threshold; the absolute value of each target vibration data is obtained to obtain the absolute target vibration data corresponding to each target vibration data; and the largest absolute target vibration data is determined as the vibration data.

[0059] In this embodiment, as above Figure 4As shown, in the process of controlling the washing machine to perform the pre-spinning operation, multiple acceleration data of a certain axis (such as the X axis) of the attitude sensor within a certain period of time can be processed by absolute value and sorted from small to large, and the maximum value W is taken. max This will be used as the data for subsequent analysis of deviation rate.

[0060] In an optional embodiment of the present invention, a plurality of target vibration data of the outer barrel in a target axial direction are obtained using a posture sensor at predetermined time intervals, including: obtaining a vibration data group of the outer barrel in each axial direction using a posture sensor, wherein the vibration data group includes a plurality of initial vibration data obtained within a predetermined time length; analyzing the eccentricity detection accuracy of each axial direction according to each vibration data group to obtain an analysis result; determining the axial direction corresponding to the maximum eccentricity detection accuracy as the target axial direction according to the analysis result; and determining a plurality of initial vibration data in the vibration data group corresponding to the target axial direction as a plurality of target vibration data.

[0061] Specifically, the data on the three axes in the attitude sensor can be received by the main controller, but the specific selection of the data on which axis is used as the basis for calculating the deviation rate is mainly based on the following points: 1) Significance of vibration characteristics: If within the preset time period T, the data variation range of a certain axis (i.e., the difference between the maximum value and the minimum value) is significantly larger than that of other axes, this usually indicates that the vibration characteristics in the direction of this axis can best reflect the eccentricity state. For example, if the clothes are mainly clustered in the horizontal direction in the drum, then the data on the X-axis or Y-axis may show more significant fluctuations, while the fluctuations on the Z-axis are smaller; 2) Eccentricity direction: The direction of eccentricity is perpendicular to the rotation axis of the drum. Therefore, if the rotation axis of the drum is the Z-axis, then the eccentricity is most likely It is manifested in the X-axis and Y-axis directions. Whether it is the X-axis or the Y-axis depends on the specific direction of the eccentricity of the clothes and the actual layout of the washing machine. Sometimes, the eccentricity may occur mainly in one direction. In this case, the axis data in this direction will be more representative. 3) Signal quality and stability: In practical applications, it may be necessary to consider the signal quality and stability of the sensor in different axial directions. If the signal of a certain axis is more susceptible to interference or the sensor has higher accuracy in this axis, it will be more reasonable to select the data of this axis for calculating the deviation rate. Therefore, the accuracy of the data in each axis during eccentricity detection can be comprehensively analyzed, or experience can be combined to determine which axis's data is used as the basis for calculating the deviation rate.

[0062] In another optional embodiment of the present invention, a vibration data group of the outer barrel in each axial direction is obtained by using a posture sensor, including: obtaining a plurality of original vibration data of the outer barrel in each axial direction at a predetermined time interval by using the posture sensor; filtering and formatting each original vibration data to obtain initial vibration data corresponding to each original vibration data; and integrating a plurality of initial vibration data belonging to the same axial direction to obtain a vibration data group corresponding to each axial direction.

[0063] Specifically, as above Figure 4 As shown, the vibration data collected by the posture sensor needs to be converted into digital signals that can be used for analysis through filtering, amplification and digital signal processing technology; further, by performing Fourier transform and other processing on these digital signals, frequency domain and time domain analysis can be performed to extract key parameters representing the vibration characteristics of the washing drum, such as frequency, amplitude, etc.

[0064] In a specific embodiment of the present invention, determining the deviation rate of the washing machine according to the vibration data and the standard vibration data includes: determining the deviation rate of the washing machine according to the vibration data and the standard vibration data using a first formula, wherein the first formula is: P represents the deviation rate, W max represents vibration data, and W represents standard vibration data.

[0065] As above Figure 4 As shown, the obtained vibration data and standard vibration data can be used using the formula: To calculate the deviation rate, where P represents the deviation rate, W max represents vibration data, and W represents standard vibration data.

[0066] Specifically, when the clothes in the barrel are not eccentric or the eccentricity is very small, the inner drum rotates normally, and there is basically no large vibration in the drum. It is assumed that some vibration data obtained when the washing machine is in an unloaded state are as shown in Table 1 below. Table 1 shows some vibration data collected when there is no eccentricity; when the placed clothes are clumped and eccentric, the drum rotates elliptically due to the uneven rotation of the drum, causing the outer drum to vibrate. The more severe the vibration, the greater the deviation of the data sampled by the attitude sensor, and the greater the eccentricity. It is assumed that some vibration data obtained when the washing machine is in a loaded state are as shown in Table 2 below. Table 2 shows some vibration data collected with a load of clothes; taking the X-axis data as an example, the largest data in Table 1 can be used as the standard vibration data W, and the largest data in Table 2 can be used as the vibration data W max To calculate the deviation rate.

[0067] Table 1

[0068] Time / s X-axis Y-axis Z-axis 1 70 -420 0 2 74 -700 -140 3 77 -840 -70 4 80 -770 0 5 75 -560 70 6 72 -140 -70 7 68 0 0 8 65 -90 0 9 67 -560 -140 10 71 -910 -140

[0069] Table 2

[0070] Time / s X-axis Y-axis Z-axis 1 280 -390 -70 2 350 -680 -70 3 402 -750 -70 4 425 -830 -210 5 433 -870 -70 6 390 -810 -70 7 340 -700 -70 8 293 -280 0 9 245 0 -140 10 240 70 0

[0071] In another specific embodiment of the present invention, the preset speed increase strategy of the inner drum is adjusted according to the deviation rate to obtain the target speed increase strategy, including: determining the original acceleration of the speed of the inner drum during the pre-dehydration operation according to the preset speed increase strategy; updating the original acceleration according to the deviation rate using a second formula to obtain the target acceleration, wherein the second formula is: a represents the original acceleration, a ′ Indicates the target acceleration; the strategy of increasing the speed according to the target acceleration is used as the target speed increase strategy.

[0072] Specifically, from the speed formula V = a*t, it can be seen that in order to make the clothes run at a low speed as much as possible, the acceleration a needs to be reduced; therefore, the greater the deviation rate, the lower the acceleration should be, so that the speed increase curve is relatively gentle, and the adjusted acceleration a According to the eccentricity detection and analysis, the speed increase curve can be adjusted by Figure 6 The curves shown are compared for reference.

[0073] In an optional embodiment of the present invention, after the speed is increased to a preset speed according to the target speed increase strategy, the inner drum is controlled to perform a main dehydration operation according to the preset speed to complete the dehydration treatment of the clothes to be dehydrated, including: dividing the speed of the inner drum during the control of the washing machine to perform the pre-dehydration operation into low speed, medium speed and high speed, wherein the low speed is less than the medium speed, and the medium speed is less than the high speed; in the process of controlling the inner drum to run at a first speed, a first target speed increase strategy for the speed is generated according to first vibration data of the outer drum, wherein the first vibration data is vibration data obtained during the operation of the inner drum at the first speed; when the preset speed belongs to the medium speed, the speed is increased according to the first target speed. After the speed is increased to a preset speed according to the speed increasing strategy, the inner drum is controlled to perform a main dehydration operation at the preset speed to complete the dehydration treatment of the clothes to be dehydrated; when the preset speed is a high speed, the speed is increased to a second speed according to the first target speed speed increasing strategy, wherein the second speed is greater than the first speed; in the process of controlling the inner drum to run at the second speed, a second target speed speed increasing strategy for the speed is generated according to second vibration data of the outer barrel, wherein the second vibration data is vibration data obtained during the operation of the inner drum at the second speed; after the speed is increased to the preset speed according to the second target speed speed increasing strategy, the inner drum is controlled to perform a main dehydration operation at the preset speed to complete the dehydration treatment of the clothes to be dehydrated.

[0074] Optionally, the vibration data may include but is not limited to first vibration data and second vibration data, and the target speed increase strategy may include but is not limited to a first target speed increase strategy and a second target speed increase strategy.

[0075] Specifically, when using a washing machine to dehydrate, if the rotation speed is close to the natural frequency of the washing machine, especially when the clothes are unevenly distributed in the drum, the unbalanced force will increase, thereby causing resonance; the natural frequency of the washing machine is affected by many factors, including but not limited to: the weight and size of the drum, the stiffness of the supporting springs, the performance of the shock absorber, the weight and distribution of the clothes, etc.; generally speaking, the resonant rotation speed of a drum washing machine may be in the following range: the rotation speed is approximately 0-500rpm; there is generally a certain rotation speed that causes the resonance of the washing machine. During dehydration, the uneven distribution of clothes causes the drum to be eccentric, which is then prone to resonance or drum collision. In the resonant state, the rotation efficiency of the drum will be reduced, affecting the dehydration and cleaning effect of the clothes, resulting in incomplete cleaning or insufficient dehydration of the clothes; in the case of drum collision, it will also cause noise problems; and when the uneven distribution of clothes causes eccentricity, it is one of the reasons for the resonance of the washing machine. Therefore, the speed that the washing machine can increase can be divided into three stages: low speed (0-200rpm), medium speed (200-600rpm), and high speed (above 600rpm). Because the distribution state of the clothes being dehydrated in the drum tends to be stable when the speed is high, the stage that needs to be analyzed is divided into two stages, the low speed stage and the medium speed stage. Of course, the speed increase stage of the washing machine can also be divided according to other division methods based on actual conditions, and no specific restrictions are made here.

[0076] As above Figure 4 As shown, in the eccentricity detection stage, the first stage is first entered to collect data from the low speed stage: the speed is increased to a low speed of R1 rpm (i.e., the first speed) with a preset acceleration, and maintained for T1 seconds. During this process, vibration data will be collected all the time. After data processing and analysis, the deviation rate is low, and the speed set by the user belongs to the medium speed segment, then the speed is directly increased to the target speed set by the user according to the preset speed increase steps; if the speed set by the user belongs to the high speed, it is also necessary to enter the second stage to collect data from the medium speed stage: the speed is increased to a speed of R2rpm (i.e., the second speed) with a preset acceleration and maintained for T2 seconds; the same as the low speed data processing and analysis, the speed increase step of the target speed is automatically determined to increase the speed to the target speed set by the user.

[0077] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0078] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0079] According to an embodiment of the present invention, there is also provided a washing machine dehydration control device considering eccentricity treatment for implementing the above-mentioned washing machine dehydration control method considering eccentricity treatment. Figure 7 is a schematic diagram of a washing machine dehydration control device considering eccentricity processing according to an embodiment of the present invention. Figure 7 As shown, the device comprises: a first acquisition unit 71, a determination unit 73, a second acquisition unit 75 and a control unit 77. The washing machine dehydration control device considering eccentricity treatment is described in detail below.

[0080] The first acquisition unit 71 is used to acquire vibration data of the outer drum of the washing machine at predetermined time intervals during the process of controlling the washing machine to perform a pre-spin operation. The pre-spin operation refers to a spin operation performed during the speed increase process of the inner drum of the washing machine.

[0081] The determination unit 73 is used to determine the deviation rate of the washing machine based on the vibration data and the standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs a dehydration operation in an empty state, and the deviation rate is used to reflect the eccentricity of the clothes to be dehydrated in the inner drum of the washing machine, and the empty state refers to the state when there are no clothes to be dehydrated in the inner drum.

[0082] The second acquisition unit 75 is used to adjust the preset speed increase strategy of the inner drum according to the deviation rate to obtain a target speed increase strategy, wherein the preset speed increase strategy is a preset strategy for controlling the speed increase of the inner drum.

[0083] The control unit 77 is used to increase the speed to a preset speed according to the target speed increase strategy, and then control the inner drum to perform a main dehydration operation at the preset speed to complete the dehydration of the clothes to be dehydrated, wherein the main dehydration operation refers to the dehydration operation performed when the inner drum is running at a preset speed.

[0084] It should be noted here that the above-mentioned first acquisition unit 71, determination unit 73, second acquisition unit 75 and control unit 77 correspond to steps S202 to S208 in the above-mentioned embodiments, and the four units and the corresponding steps implement the same instances and application scenarios, but are not limited to the contents disclosed in the above-mentioned embodiments.

[0085] As can be seen from the above, in the scheme recorded in the above-mentioned embodiment of the present invention, the first acquisition unit can be used to obtain the vibration data of the outer drum in the washing machine at a predetermined time interval during the process of controlling the washing machine to perform a pre-spinning operation, and the pre-spinning operation refers to the spin operation performed during the speed increase process of the inner drum of the washing machine; then the determination unit is used to determine the deviation rate of the washing machine according to the vibration data and the standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs a spin operation in an empty state, and the deviation rate is used to reflect the degree of eccentricity of the clothes to be spinned in the inner drum of the washing machine, and the empty state refers to the state when there are no clothes to be spinned in the inner drum; then the second acquisition unit is used to adjust the preset speed increase strategy of the inner drum according to the deviation rate to obtain the target speed increase strategy, wherein the preset speed increase strategy The invention adopts a strategy for increasing the speed of the inner drum according to a preset control speed; finally, the control unit is used to increase the speed to the preset speed according to the target speed increase strategy, and then the inner drum is controlled to perform the main dehydration operation according to the preset speed to complete the dehydration of the clothes to be dehydrated. Among them, the main dehydration operation refers to the dehydration operation performed when the inner drum is running at a preset speed. The purpose of analyzing the vibration data of the outer drum of the washing machine to judge the eccentricity of the clothes in the inner drum and adjusting the speed of the inner drum is achieved. The technical effect of automatically selecting the appropriate speed increase method in the early stage of dehydration speed increase and automatically adjusting the optimal speed increase curve is achieved, which not only saves the time of repeated attempts caused by dehydration failure, but also reduces the noise caused by hitting the barrel due to eccentricity, improves the success rate of dehydration, and improves the user experience.

[0086] Therefore, the technical solution provided by the above-mentioned embodiment of the present invention solves the technical problems in the related art that the traditional method used in the conventional art for detecting eccentricity during the dehydration process of the washing machine is delayed or misjudged, and repeated eccentricity detection and processing will cause the entire dehydration process to be prolonged, thus seriously affecting the dehydration efficiency of the washing machine.

[0087] In an optional embodiment, the first acquisition unit includes: a first acquisition module, which is used to obtain multiple target vibration data of the outer barrel on the target axis using a posture sensor at predetermined time intervals during the process of controlling the washing machine to perform a pre-spinning operation, wherein the posture sensor is installed on the barrel wall of the outer barrel, and the target axis is the axis in which the eccentricity detection accuracy of the posture sensor is higher than the accuracy threshold; a second acquisition module, which is used to obtain the absolute value of each target vibration data to obtain the absolute target vibration data corresponding to each target vibration data; and a first determination module, which is used to determine the maximum absolute target vibration data as the vibration data.

[0088] In an optional embodiment, the first acquisition module includes: a first acquisition submodule, used to use a posture sensor to obtain a vibration data group of the outer barrel in each axis, wherein the vibration data group includes a plurality of initial vibration data acquired within a predetermined time length; a second acquisition submodule, used to analyze the eccentricity detection accuracy of each axis according to each vibration data group to obtain an analysis result; a first determination submodule, used to determine, according to the analysis result, that the axis corresponding to the maximum eccentricity detection accuracy is the target axis; and a second determination submodule, used to determine that the plurality of initial vibration data in the vibration data group corresponding to the target axis are a plurality of target vibration data.

[0089] In an optional embodiment, the first acquisition submodule includes: a third acquisition submodule, which is used to use the posture sensor to acquire multiple original vibration data of the outer barrel in each axis at a predetermined time interval; a fourth acquisition submodule, which is used to filter and convert the format of each original vibration data to obtain initial vibration data corresponding to each original vibration data; and a fifth acquisition submodule, which is used to integrate multiple initial vibration data belonging to the same axis to obtain a vibration data group corresponding to each axis.

[0090] In an optional embodiment, the determination unit includes: a second determination module, configured to determine the deviation rate of the washing machine using a first formula according to the vibration data and the standard vibration data, wherein the first formula is: P represents the deviation rate, W max represents vibration data, and W represents standard vibration data.

[0091] In an optional embodiment, the second acquisition unit includes: a third determination module, which is used to determine the original acceleration of the speed of the inner drum during the pre-dehydration operation according to a preset speed increase strategy; and a third acquisition module, which is used to update the original acceleration using a second formula according to the deviation rate to obtain a target acceleration, wherein the second formula is: a represents the original acceleration, a ′ represents the target acceleration; and a fourth determining module, for controlling the speed to increase according to the target acceleration as the target speed increase strategy.

[0092] In an optional embodiment, the vibration data includes first vibration data and second vibration data, the target speed increase strategy includes a first target speed increase strategy and a second target speed increase strategy, and the control unit includes: a division module, used to divide the speed of the inner drum during the control of the washing machine to perform a pre-spinning operation into low speed, medium speed and high speed, wherein the low speed is less than the medium speed, and the medium speed is less than the high speed; a first generation module, used to generate a first target speed increase strategy for the speed according to the first vibration data of the outer drum during the process of controlling the inner drum to run at a first speed, wherein the first vibration data is vibration data obtained during the operation of the inner drum at the first speed; a first control module, used to increase the speed according to the first target speed when the preset speed belongs to the medium speed. After the speed increase strategy is increased to the preset speed, the inner drum is controlled to perform the main dehydration operation at the preset speed to complete the dehydration treatment of the clothes to be dehydrated; the adjustment module is used to increase the speed to the second speed according to the first target speed increase strategy when the preset speed is a high speed, wherein the second speed is greater than the first speed; the second generation module is used to generate a second target speed increase strategy for the speed according to the second vibration data of the outer barrel during the process of controlling the inner drum to run at the second speed, wherein the second vibration data is the vibration data obtained during the operation of the inner drum at the second speed; the second control module is used to control the inner drum to perform the main dehydration operation at the preset speed after the speed is increased to the preset speed according to the second target speed increase strategy, so as to complete the dehydration treatment of the clothes to be dehydrated.

[0093] According to another aspect of an embodiment of the present invention, a washing machine dehydration control system considering eccentricity treatment is provided. The washing machine dehydration control system considering eccentricity treatment uses any of the above-mentioned washing machine dehydration control methods considering eccentricity treatment.

[0094] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is further provided, the computer-readable storage medium comprising a stored program, wherein the program executes any one of the above-mentioned washing machine dehydration control methods considering eccentricity processing.

[0095] Optionally, in this embodiment, the computer-readable storage medium may be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the communication devices in a communication device group.

[0096] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: in the process of controlling the washing machine to perform a pre-spin operation, obtaining vibration data of the outer drum in the washing machine at predetermined time intervals, the pre-spin operation referring to a spin operation performed during the speed increase process of the inner drum of the washing machine; determining the deviation rate of the washing machine based on the vibration data and standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs a spin operation in an unloaded state, and the deviation rate is used to reflect the degree of eccentricity of the clothes to be spinned in the inner drum of the washing machine, and the unloaded state refers to a state when there are no clothes to be spinned in the inner drum; adjusting the preset speed increase strategy of the inner drum based on the deviation rate to obtain a target speed increase strategy, wherein the preset speed increase strategy is a preset strategy for controlling the speed of the inner drum to increase the speed; after the speed is increased to a preset speed according to the target speed increase strategy, controlling the inner drum to perform a main spin operation at a preset speed to complete the dehydration of the clothes to be spinned, wherein the main spin operation refers to a spin operation performed during the operation of the inner drum at a preset speed.

[0097] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: in the process of controlling the washing machine to perform a pre-spinning operation, using a posture sensor to obtain multiple target vibration data of the outer barrel on a target axis at predetermined time intervals, wherein the posture sensor is installed on the barrel wall of the outer barrel, and the target axis is the axis in which the eccentricity detection accuracy of the posture sensor is higher than the accuracy threshold; obtaining the absolute value of each target vibration data to obtain absolute target vibration data corresponding to each target vibration data; and determining the largest absolute target vibration data as the vibration data.

[0098] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: using a posture sensor to obtain a vibration data group of the outer barrel in each axis, wherein the vibration data group includes multiple initial vibration data obtained within a predetermined time length; analyzing the eccentricity detection accuracy of each axis according to each vibration data group to obtain an analysis result; determining the axis corresponding to the maximum eccentricity detection accuracy as the target axis according to the analysis result; and determining multiple initial vibration data in the vibration data group corresponding to the target axis as multiple target vibration data.

[0099] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: obtaining multiple original vibration data of the outer barrel in each axial direction using a posture sensor at predetermined time intervals; filtering and formatting each original vibration data to obtain initial vibration data corresponding to each original vibration data; integrating multiple initial vibration data belonging to the same axial direction to obtain a vibration data group corresponding to each axial direction.

[0100] Optionally, in this embodiment, the computer-readable storage medium is configured to store a program code for executing the following steps: determining the deviation rate of the washing machine using a first formula according to the vibration data and the standard vibration data, wherein the first formula is: P represents the deviation rate, W max represents vibration data, and W represents standard vibration data.

[0101] Optionally, in this embodiment, the computer-readable storage medium is configured to store a program code for executing the following steps: determining the original acceleration of the speed of the inner drum during the pre-dehydration operation according to a preset speed increase strategy; updating the original acceleration using a second formula according to the deviation rate to obtain a target acceleration, wherein the second formula is: a represents the original acceleration, a ′ Indicates the target acceleration; the strategy of increasing the speed according to the target acceleration is used as the target speed increase strategy.

[0102] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: dividing the speed of the inner drum during the pre-spinning operation of the washing machine into low speed, medium speed and high speed, wherein the low speed is less than the medium speed, and the medium speed is less than the high speed; in the process of controlling the inner drum to run at a first speed, generating a first target speed increase strategy for the speed according to first vibration data of the outer drum, wherein the first vibration data is vibration data obtained during the operation of the inner drum at the first speed; when the preset speed belongs to the medium speed, after the speed is increased to the preset speed according to the first target speed increase strategy, controlling the inner drum to run at a first speed; The inner drum performs a main dehydration operation at a preset speed to complete the dehydration of the clothes to be dehydrated; when the preset speed is a high speed, the speed is increased to a second speed according to a first target speed increase strategy, wherein the second speed is greater than the first speed; in the process of controlling the inner drum to run at the second speed, a second target speed increase strategy for the speed is generated according to second vibration data of the outer drum, wherein the second vibration data is vibration data obtained during the operation of the inner drum at the second speed; after the speed is increased to the preset speed according to the second target speed increase strategy, the inner drum is controlled to perform a main dehydration operation at the preset speed to complete the dehydration of the clothes to be dehydrated.

[0103] According to another aspect of an embodiment of the present invention, a processor is further provided, and the processor is used to run a program, wherein when the program is run, any one of the above-mentioned washing machine dehydration control methods considering eccentricity processing is executed.

[0104] According to another aspect of an embodiment of the present invention, a computer program product is further provided, comprising computer instructions, which, when executed by a processor, execute any one of the above-mentioned washing machine dehydration control methods taking eccentricity processing into consideration.

[0105] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0106] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0107] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0108] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0109] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0110] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0111] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A washing machine dehydration control method considering eccentricity treatment, characterized in that: include: In the process of controlling the washing machine to perform a pre-spinning operation, obtaining vibration data of the outer drum of the washing machine at predetermined time intervals, wherein the pre-spinning operation refers to a spinning operation performed during the speed increase of the inner drum of the washing machine; determining a deviation rate of the washing machine according to the vibration data and standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs the dehydration operation in an empty state, and the deviation rate is used to reflect the eccentricity of the clothes to be dehydrated in the inner drum of the washing machine, and the empty state refers to a state when there is no clothes to be dehydrated in the inner drum; The preset speed increase strategy of the inner drum is adjusted according to the deviation rate to obtain a target speed increase strategy, wherein the preset speed increase strategy is a preset strategy for controlling the speed increase of the inner drum; After the speed is increased to a preset speed according to the target speed increase strategy, the inner drum is controlled to perform a main dehydration operation at the preset speed to complete the dehydration of the clothes to be dehydrated, wherein the main dehydration operation refers to the dehydration operation performed while the inner drum is running at a preset speed.

2. The washing machine dehydration control method considering eccentricity treatment according to claim 1, characterized in that: In the process of controlling the washing machine to perform a pre-spinning operation, obtaining vibration data of the outer tub in the washing machine at a predetermined time interval includes: In the process of controlling the washing machine to perform the pre-spinning operation, a plurality of target vibration data of the outer tub on a target axis are obtained by using a posture sensor at the predetermined time interval, wherein the posture sensor is mounted on the barrel wall of the outer tub, and the target axis is an axis of the posture sensor whose eccentricity detection accuracy is higher than an accuracy threshold; Acquire the absolute value of each target vibration data to obtain absolute target vibration data corresponding to each target vibration data; The maximum absolute target vibration data is determined as the vibration data.

3. The washing machine dehydration control method considering eccentricity treatment according to claim 2, characterized in that: Acquiring a plurality of target vibration data of the outer barrel in the target axial direction by using the attitude sensor according to the predetermined time interval, including: Using the posture sensor to obtain a vibration data set of the outer barrel in each axial direction, wherein the vibration data set includes a plurality of initial vibration data obtained within a predetermined time period; Analyzing the eccentricity detection accuracy of each of the axial directions according to each of the vibration data groups to obtain an analysis result; Determine, according to the analysis result, the axial direction corresponding to the maximum eccentricity detection accuracy as the target axial direction; A plurality of the initial vibration data in the vibration data group corresponding to the target axial direction is determined as a plurality of the target vibration data.

4. The washing machine dehydration control method considering eccentricity treatment according to claim 3, characterized in that: Using the posture sensor to obtain a vibration data set of the outer barrel in each axial direction includes: Acquiring a plurality of raw vibration data of the outer barrel in each of the axial directions by using the posture sensor at the predetermined time interval; Performing filtering and format conversion on each of the original vibration data to obtain the initial vibration data corresponding to each of the original vibration data; The multiple initial vibration data belonging to the same axial direction are integrated to obtain the vibration data group corresponding to each axial direction.

5. The washing machine dehydration control method considering eccentricity treatment according to claim 1, characterized in that: Determining the deviation rate of the washing machine according to the vibration data and the standard vibration data includes: The deviation rate of the washing machine is determined by using a first formula according to the vibration data and the standard vibration data, wherein the first formula is: P represents the deviation rate, W max represents the vibration data, and W represents the standard vibration data.

6. The washing machine dehydration control method considering eccentricity treatment according to claim 1, characterized in that: The preset speed increase strategy of the inner drum is adjusted according to the deviation rate to obtain a target speed increase strategy, including: Determining the original acceleration of the speed of the inner drum during the pre-dehydration operation according to the preset speed increase strategy; The original acceleration is updated using a second formula according to the deviation rate to obtain a target acceleration, wherein the second formula is: a represents the original acceleration, a ′ represents the target acceleration; A strategy for controlling the rotation speed to increase according to the target acceleration is used as the target rotation speed increase strategy.

7. The washing machine dehydration control method considering eccentricity treatment according to claim 1, characterized in that: The vibration data includes first vibration data and second vibration data, the target speed increasing strategy includes a first target speed increasing strategy and a second target speed increasing strategy, after the speed is increased to a preset speed according to the target speed increasing strategy, the inner drum is controlled to perform a main dehydration operation according to the preset speed to complete the dehydration process of the clothes to be dehydrated, including: Controlling the rotation speed of the inner drum during the pre-spinning operation of the washing machine to be divided into low rotation speed, medium rotation speed and high rotation speed, wherein the low rotation speed is lower than the medium rotation speed, and the medium rotation speed is lower than the high rotation speed; In the process of controlling the inner drum to run at a first speed, generating a first target speed increase strategy for the speed according to first vibration data of the outer drum, wherein the first vibration data is the vibration data obtained during the process of the inner drum running at the first speed; When the preset speed belongs to the medium speed, after the speed is increased to the preset speed according to the first target speed increasing strategy, the inner drum is controlled to perform the main dehydration operation at the preset speed to complete the dehydration process of the clothes to be dehydrated; When the preset speed belongs to the high speed, increasing the speed to a second speed according to the first target speed increasing strategy, wherein the second speed is greater than the first speed; In the process of controlling the inner drum to run at the second speed, generating a second target speed increase strategy for the speed according to the second vibration data of the outer drum, wherein the second vibration data is the vibration data obtained during the process of the inner drum running at the second speed; After the rotation speed is increased to the preset rotation speed according to the second target rotation speed increasing strategy, the inner drum is controlled to perform the main dehydration operation according to the preset rotation speed to complete the dehydration process of the clothes to be dehydrated.

8. A washing machine dehydration control device taking into account eccentricity treatment, characterized in that: include: a first acquisition unit, configured to acquire vibration data of the outer drum of the washing machine at predetermined time intervals during the process of controlling the washing machine to perform a pre-spin operation, wherein the pre-spin operation refers to a spin operation performed during the speed increase process of the inner drum of the washing machine; a determining unit, configured to determine a deviation rate of the washing machine according to the vibration data and standard vibration data, wherein the standard vibration data is the vibration data of the outer drum when the washing machine performs the dehydration operation in an empty state, and the deviation rate is used to reflect the degree of eccentricity of the clothes to be dehydrated in the inner drum of the washing machine, and the empty state refers to a state when there are no clothes to be dehydrated in the inner drum; a second acquisition unit, configured to adjust the preset speed increase strategy of the inner drum according to the deviation rate to obtain a target speed increase strategy, wherein the preset speed increase strategy is a preset strategy for controlling the speed increase of the inner drum; A control unit is used to increase the speed to a preset speed according to the target speed increase strategy, and then control the inner drum to perform a main dehydration operation at the preset speed to complete the dehydration of the clothes to be dehydrated, wherein the main dehydration operation refers to the dehydration operation performed when the inner drum is running at a preset speed.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the washing machine dehydration control method considering eccentricity processing according to any one of claims 1 to 7.

10. A computer program product comprising computer instructions, characterized in that When the computer instructions are executed by the processor, the dehydration control method of the washing machine considering eccentricity processing as described in any one of claims 1 to 7 is performed.

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