A method for treating dirt, electronic equipment and washing machine

By using a turbidity sensor to detect debris in the liquid in the washing machine and combining it with rotation rhythm and water temperature control, the problem of removing paper debris from clothes has been solved, thus improving the cleaning effect.

CN117071242BActive Publication Date: 2025-10-28GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202310968775.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-02
Publication Date
2025-10-28
Estimated Expiration
2043-08-02

AI Technical Summary

Technical Problem

Existing washing machines are unable to effectively remove paper scraps and other foreign matter mixed in with clothes during the washing process, resulting in unsatisfactory cleaning results and causing inconvenience to users.

Method used

A turbidity sensor is used to detect the liquid in the washing machine's drainage path. The detection signal determines whether the liquid contains debris, and the debris index is calculated based on the detection signal to control the rotation rhythm of the inner drum and the water temperature of the washing machine, thus separating debris from clothes.

Benefits of technology

It enables accurate judgment of debris in liquids, provides a basis for subsequent cleaning treatment, improves cleaning effect, and ensures the cleanliness of clothing.

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Abstract

This invention relates to the field of washing machine technology, and in particular to a method for treating dirt, an electronic device, and a washing machine. The method includes: detecting a dirty liquid using a turbidity sensor to obtain a detection signal; and determining the presence of debris in the liquid based on the detection signal. By obtaining the detection signal through the turbidity sensor and determining the presence of debris in the liquid based on the detection signal, the presence of debris in the liquid can be effectively confirmed. Furthermore, it can provide important and accurate information for subsequent cleaning processes.
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Description

Technical Field

[0001] This invention relates to the field of washing machine technology, and in particular to a method for treating dirt, an electronic device, and a washing machine. Background Technology

[0002] As people's living standards continue to improve, washing machines have become an indispensable household appliance. The variety of washing machines is constantly increasing, and their functions are continuously being updated. Currently, washing machines on the market not only meet users' regular clothing washing needs but also provide specific garment care. However, during daily use, washing machines can sometimes fail to achieve ideal cleaning results due to human factors. For example, if paper or other foreign objects are placed in clothing pockets, they may be shredded and mixed with the clothes during the washing process. Conventional washing machines struggle to handle this situation, causing inconvenience for users. Summary of the Invention

[0003] In view of this, the present invention provides a method for treating dirt, an electronic device, and a washing machine to solve the problems in the prior art where paper foreign objects may be shredded and mixed with clothes during the washing process, and conventional washing machines have difficulty removing the shreds by washing means, causing trouble for users.

[0004] This invention provides a method for treating contaminants, the method comprising: detecting a liquid containing contaminants using a turbidity sensor to obtain a detection signal; and determining, based on the detection signal, whether the liquid contains debris.

[0005] Optionally, the step of detecting the dirty liquid using a turbidity sensor to obtain a detection signal includes: detecting the liquid in the drain path of the washing machine using the turbidity sensor to obtain the detection signal.

[0006] Further optionally, the method further includes obtaining the detection signal through the turbidity sensor during the washing stage of the washing machine or during the draining stage of the washing machine.

[0007] Further optionally, the step of detecting the contaminated liquid using a turbidity sensor to obtain a detection signal includes: obtaining at least two detection signals through intermittent detection, each detection signal representing the effective value of contamination in its corresponding detection cycle.

[0008] Further optionally, determining whether the liquid contains debris based on the detection signal includes: determining whether the liquid contains debris based on the number of 0s or the proportion of 0s in the detection signal, wherein the detection signal is a binary signal.

[0009] Further optionally, determining the presence of debris in the liquid based on the number or percentage of zeros in the detection signal includes:

[0010] A reference debris index is calculated based on the debris index of at least two of the detection signals, wherein the debris index is calculated based on the number of 0s or the proportion of 0s in the detection signals;

[0011] The presence of debris is determined by comparing the reference debris index with the debris judgment value.

[0012] Further optionally, after determining that the material contains debris, the method further includes a debris separation stage that separates the debris from the clothing by setting a rotation rhythm and water temperature.

[0013] Further optionally, during the debris separation stage, the inner drum of the washing machine is controlled to rotate forward and backward according to a first rotation rhythm suitable for the separation of debris from clothes, and the washing water is kept in the target temperature range by controlling the heating device.

[0014] Further, optionally, the method further includes:

[0015] During the soaking stage, prior to the debris separation stage, water is refilled and the clothes in the washing machine are soaked.

[0016] During the rinsing phase, after the debris separation phase, the water inlet and outlet are turned on to rinse for a set time. During the rinsing phase, the inner drum of the washing machine is controlled to rotate forward and backward according to the second rotation rhythm.

[0017] During the drainage phase, after the rinsing phase, the inner drum of the washing machine is stopped from rotating, the water inlet is shut off, and drainage is maintained.

[0018] An electronic device includes: a memory for storing one or more computer instructions; and a processor for calling and executing the computer instructions in the memory, thereby implementing a method for handling contaminants.

[0019] A washing machine that employs a dirt-treating method or has electronic equipment.

[0020] Compared with the prior art, the main advantages of the present invention are as follows:

[0021] This invention designs a dirt treatment method, electronic device, and washing machine. By acquiring a detection signal from the turbidity sensor and determining the presence of debris in the liquid based on the detection signal, it can effectively confirm the presence of debris in the liquid. Furthermore, it can provide important and accurate information for subsequent cleaning processes. Attached Figure Description

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0024] Figure 1 This is a schematic flowchart of a debris detection method according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic flowchart of a debris cleaning method according to an embodiment of the present invention. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0028] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0029] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0030] Example 1

[0031] Figure 1 This is a schematic flowchart of a debris detection method according to Embodiment 1 of the present invention. This method can be applied to soiling treatment (e.g., soiling of clothing), and therefore can also be used as a soiling treatment method. (Refer to...) Figure 1 The method includes:

[0032] 100: A detection signal is obtained by detecting liquids containing dirt using a turbidity sensor. A typical example of a liquid containing dirt is the wash water during the washing cycle of a washing machine.

[0033] 102: Determine whether the liquid contains debris based on the detection signal.

[0034] In this embodiment 1, the detection signal obtained by the turbidity sensor is used to determine the presence of debris in the liquid, thus effectively confirming the presence of debris. Furthermore, this provides important and accurate information for subsequent cleaning processes.

[0035] Optionally, in one implementation of this embodiment 1, the detection signal is obtained by detecting the liquid in the drain path of the washing machine using the turbidity sensor. This embodiment can be used in a series of washing machine products, and the detection signal can be obtained by the turbidity sensor during the washing stage or the draining stage of the washing machine.

[0036] Optionally, in one implementation of this embodiment 1, the detection signal is obtained by detecting the liquid containing dirt using the turbidity sensor, including: obtaining at least two detection signals by intermittent detection, each detection signal representing the effective value of dirt in its corresponding detection cycle.

[0037] Optionally, in one implementation of this embodiment 1, determining the presence of debris in the liquid based on the detection signal includes: determining the presence of debris in the liquid based on the number or proportion of 0s in the detection signal, wherein the detection signal is a binary signal. The debris is determined by light reflectance, and the debris is detected in a completely blocked state. The information received by the photoelectric sensor is, for example, 11010101 01101010, where 0 is the photosensitive value received when paper debris passes by, and then the presence of debris is determined by a logical algorithm.

[0038] Optionally, in one implementation of this embodiment 1, determining the presence of debris in the liquid based on the number or proportion of zeros in the detection signal includes:

[0039] The number or proportion of 0s in each of the multiple detection signals is calculated as the debris index corresponding to each detection signal; a reference debris index is calculated based on the debris indices of the multiple detection signals; the presence of debris is determined by comparing the reference debris index with the debris judgment value.

[0040] Optionally, in one example of the invention applied to a washing machine, after the washing machine finishes washing clothes, the drain pump starts running and begins draining. The turbidity sensor is activated, detecting the effective turbidity value Z1 within time period T1 in the drain path. After time period T2 stops, the effective turbidity value Z2 within time period T1 is detected again, and so on, until Z3 is detected. Z1, Z2, and Z3 are all binary numbers. The percentage of 0s in each number is calculated to obtain the debris parameters (or debris thresholds) W1, W2, and W3. A reference debris index is calculated using a statistical method: W = (W1 + W2 + W3) / 3.

[0041] For example, the effective turbidity values ​​Z for the three time periods T1 are as follows: 11100110001111000010 01100001001110000000 00111000101011000111

[0043] The corresponding W1, W2, and W3 debris thresholds (1 represents the debris signal, and the percentage value of signal 1 is calculated) are 50%, 30%, and 50%, respectively.

[0044] The calculated average threshold W is: (50% + 30% + 50%) / 3 = 43.33%.

[0045] Assuming the threshold for determining debris is A, when W < A, it is determined that there is no debris, and the washing machine does not need to perform debris cleaning. When the turbidity sensor detects a threshold W ≥ A, it is determined that there is debris, and the washing machine can be controlled to enter the debris cleaning control mode. The calculated percentage value can be used to measure the debris content, and the water intake, inner drum rotation speed, and time are adjusted according to the amount of debris.

[0046] Example 2

[0047] Embodiment 2 of the present invention provides a debris cleaning method for removing debris mixed on clothing. This method can be triggered to perform debris cleaning when debris is detected in a liquid using the debris detection method described in Embodiment 1 above.

[0048] Taking the lint cleaning method provided in Embodiment 2 of the present invention in a washing machine as an example, the method may include: after determining that there are lint, separating the lint from the clothes by setting the rotation rhythm and water temperature (hereinafter referred to as the lint separation stage).

[0049] Optionally, in one implementation of this embodiment 2, during the lint separation stage, the inner drum of the washing machine is controlled to rotate forward and backward according to a first rotation rhythm suitable for separating lint from clothes, and the washing water is maintained within a target temperature range by controlling the heating device. By shaking the clothes with a forward and reverse rotation rhythm suitable for separating lint from clothes, and by combining temperature control to accelerate the softening of lint, the lint can be separated from the clothes more effectively.

[0050] Specifically, the washing machine drum is controlled to perform lint cleaning. The drum rotates counterclockwise at speed R1 for time T1, then stops rotating for time T2, then rotates clockwise at speed R2 for time T3, and then stops for time T4. This cycle is repeated N times. The lint cleaning control mainly loosens and shakes the clothes, separating the lint from them. The specific control is shown in the table below (the specific values ​​of the parameters can be experimental or empirical data):

[0051]

[0052]

[0053] During drum control, the washing machine's heating device is simultaneously activated. This device can be a heat pump or an electric heater, with a default water temperature setting of S0. When the water temperature S ≥ S0 + 2℃, the heating device is turned off; when the water temperature S ≤ S0 - 2℃, the heating device is turned on. If the heating device is initially activated and the system is in a maintenance state, it will be turned off. For special garments, the maximum temperature tolerance of the garment should be used as the standard. For example, the water temperature setting for wool cleaning is S0. 羊毛The washing machine program has been pre-set with fixed parameters, and the specific control execution is as follows (the specific values ​​of the parameters can be experimental or empirical data):

[0054] state Temperature range Remark Open <![CDATA[S≤S0-2℃]]> Start heating operation maintain <![CDATA[S0-2℃<S<S0+2℃]]> Hysteresis interval closure <![CDATA[S≥S0+2℃]]> Stop heating operation

[0055] After the inner cylinder has completed N cycles, the heating device can be forcibly shut down.

[0056] Optionally, in one implementation of this embodiment 2, the debris cleaning method includes a soaking stage, a debris separation stage (as described above), a rinsing stage, and a drainage stage. See below for further details. Figure 2 Please provide a detailed explanation.

[0057] During the soaking stage, prior to the debris separation stage, water is refilled and the clothes in the washing machine are soaked.

[0058] During the rinsing phase, after the debris separation phase, the water inlet and outlet are turned on to rinse for a set time. During the rinsing phase, the inner drum of the washing machine is controlled to rotate forward and backward according to the second rotation rhythm.

[0059] During the drainage phase, after the rinsing phase, the inner drum of the washing machine is stopped from rotating, the water inlet is shut off, and drainage is maintained.

[0060] The soaking stage includes the following processes:

[0061] S1 garment weight detection calculates the garment weight (M) based on the eccentricity of the washing machine motor rotor and determines the garment weight class, as shown in the table below:

[0062]

[0063]

[0064] When the S2 inlet valve is turned on, the water inlet volume G is determined according to the weight class of the clothing, as shown in the table below:

[0065] Water inflow Very few few middle many parameter <![CDATA[G1]]> <![CDATA[G2]]> <![CDATA[G3]]> <![CDATA[G4]]>

[0066] The water intake levels of very little, little, medium, and large correspond to the weight grades of the clothing, respectively. The water intake should completely submerge the clothing.

[0067] After the S3 water intake is completed, it enters the settling stage, which lasts for T0, to soften the debris and allow it to initially separate from the clothing.

[0068] After the S4 settling time is up, the washing machine drum will perform debris cleaning control.

[0069] The rinsing phase includes the following processes:

[0070] Upon entering the rinsing phase, both the inlet and outlet pumps are activated. The inner cylinder continues to perform debris cleaning control, operating in both forward and reverse cycles. The rinsing phase lasts for T5 hours, during which the turbidity sensor remains off. After time T5, the inner cylinder stops operating, the inlet pump is shut off, and the outlet pump continues running, initiating the drainage phase.

[0071] The drainage stage includes the following processes:

[0072] During the drainage stage, the turbidity sensor is activated to detect the threshold of the debris (see Example 1 for details). Based on the threshold of the debris, it is determined whether to re-execute the debris cleaning control or exit the cleaning process, and this cycle is repeated.

[0073] Optionally, in one implementation of this embodiment 2, the debris cleaning control counts by 1 for each cycle. When the count N < N1, the threshold of the debris is determined. When the count N ≥ N1, the debris cleaning control is completed and the washing machine exits the debris cleaning control mode.

[0074] Example 3

[0075] Embodiment 3 of the present invention provides a method for treating dirt and grime, the method for treating dirt and grime includes the debris detection method described in Embodiment 1 and / or the debris cleaning method provided in Embodiment 2.

[0076] Optionally, in one implementation of this embodiment 3, in one implementation of this embodiment 2, the washing machine can automatically enter the debris cleaning control mode based on the detection result of the turbidity sensor during the washing process, or it can be triggered by external conditions (e.g., the washing machine debris and dirt cleaning button).

[0077] Example 4

[0078] Embodiment 4 of the present invention provides an electronic device having a memory for storing one or more computer instructions, and a memory for calling and executing the computer instructions in the memory, thereby implementing the method provided in any of Embodiments 1 to 3 of the present invention. Optionally, in one implementation of this embodiment, the electronic device may further include an input / output interface for data and instruction interaction between the electronic device and the outside world.

[0079] Furthermore, one embodiment of the present invention also provides a washing machine, which uses the method provided in Embodiment 1 of the present invention for debris detection, and / or uses the method provided in Embodiment 2 of the present invention for debris cleaning, and / or integrates the electronic equipment provided in the embodiments of the present invention for debris detection and / or debris cleaning.

[0080] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0081] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for treating dirt and grime, characterized in that, The method includes: The detection signal is obtained by detecting liquids containing dirt using a turbidity sensor; The presence of debris in the liquid is determined based on the detection signal; After determining that the garment contains debris, a debris separation stage is achieved by using a set rotation rhythm and water temperature to separate the debris from the clothing. The method further includes: During the soaking stage, prior to the debris separation stage, water is refilled and the clothes in the washing machine are soaked. During the rinsing phase, after the debris separation phase, the water inlet and outlet are turned on to rinse for a set time. During the rinsing phase, the inner drum of the washing machine is controlled to rotate forward and backward according to the second rotation rhythm. During the drainage phase, after the rinsing phase, the inner drum of the washing machine is stopped from rotating, the water inlet is shut off, and drainage is maintained.

2. The method for treating dirt and grime according to claim 1, characterized in that, The step of obtaining a detection signal by detecting the dirty liquid using a turbidity sensor includes: detecting the liquid in the drain path of the washing machine using the turbidity sensor to obtain the detection signal.

3. The method for treating dirt and grime according to claim 2, characterized in that, The method further includes: The detection signal is obtained through the turbidity sensor during the washing stage or the draining stage of the washing machine.

4. The method for treating dirt and grime according to any one of claims 1-3, characterized in that, The method of obtaining a detection signal by detecting the contaminated liquid using a turbidity sensor includes: obtaining at least two detection signals by intermittent detection, each detection signal representing the effective value of contamination in its corresponding detection cycle.

5. The method for treating dirt and grime according to claim 4, characterized in that, The step of determining whether the liquid contains debris based on the detection signal includes: determining whether the liquid contains debris based on the number of 0s or the proportion of 0s in the detection signal, wherein the detection signal is a binary signal.

6. The method for treating dirt and grime according to claim 5, characterized in that, The step of determining whether the liquid contains debris based on the number or percentage of zeros in the detection signal includes: A reference debris index is calculated based on the debris index of at least two of the detection signals, wherein the debris index is calculated based on the number of 0s or the proportion of 0s in the detection signals; The presence of debris is determined by comparing the reference debris index with the debris judgment value.

7. The method for treating dirt and grime according to claim 1, characterized in that, During the debris separation stage, the inner drum of the washing machine is controlled to rotate forward and backward according to a first rotation rhythm suitable for the separation of debris from clothes, and the washing water is kept in the target temperature range by controlling the heating device.

8. An electronic device, characterized in that, The electronic device includes: Memory, used to store one or more computer instructions; A processor for calling and executing computer instructions in the memory to implement the dirt removal method as described in any one of claims 1-7.

9. A washing machine, characterized in that, The method for treating dirt as described in any one of claims 1-7, or the electronic device as described in claim 8.

Citation Information

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