Washing device control method, washing device, and storage medium

Abstract

A washing device control method, a washing device, and a storage medium. The washing device control method comprises the following steps: in the washing stage of a washing device, detecting information of foam in the washing device by means of a foam sensor; and on the basis of the information of foam, determining a washing strategy.

Description

Control method of washing device, washing device and storage medium Technical Field

[0001] The present application belongs to the field of cleaning technology, and specifically relates to a control method for a washing device, a washing device, and a storage medium. Background Art

[0002] As people's living standards improve, their demands and expectations for washing equipment are growing. Taking washing machines as an example, during the washing process, clothing treatment agents contain a variety of active ingredients. Surfactants are the core active ingredient in clothing treatment agents, acting to remove stains from clothing fibers and encapsulate them to form micelles, facilitating their absorption into water. Surfactants are also the primary component of foam during the washing process.

[0003] In the existing technology, washing machines are unable to adapt the washing strategy according to actual conditions. As a result, users may perceive the presence of foam when taking clothes, causing them to think that the clothes are not rinsed clean, which reduces the user experience. At the same time, users may turn on the rinsing mode again or directly set it to the maximum round of rinsing, resulting in water and electricity waste.

[0004] Summary of the Invention

[0005] The present application provides a control method for a washing device, a washing device and a storage medium to solve the problem in the prior art that a washing machine cannot adaptively adjust a washing strategy according to actual conditions.

[0006] In order to achieve the above-mentioned object, the present application provides a control method for a washing device, the control method for a washing device comprising the following steps:

[0007] During the washing stage of the washing device, the foam information in the washing device is detected by the foam sensor;

[0008] A washing strategy is determined based on the foam information.

[0009] Preferably, in the control method of the washing device, the step of determining a washing strategy according to the foam information includes:

[0010] When no foam is detected in a single round of rinsing, the control is to add one or more rinses, or end the rinsing;

[0011] When foam is detected during a single rinse, the control enters the next rinse.

[0012] Preferably, in the control method of the washing device, before the step of determining the washing strategy according to the foam information, the control method further includes:

[0013] Obtain the current water quality value of washing water through the stain index sensor;

[0014] Accordingly, when no foam is detected in a single round of rinsing, the step of controlling to add one or more rinses or to end the rinsing includes:

[0015] When no foam is detected in a single round of rinsing and the water quality value of the current washing water is close to the water quality value when the water enters, the control enters the current rinsing as the last round of rinsing.

[0016] Preferably, in the control method of the washing device, the step of determining the washing strategy according to the foam information further includes:

[0017] When foam is detected during a single round of rinsing, the washing strategy is determined based on the type of foam.

[0018] Preferably, in the control method of the washing device, the step of determining a washing strategy according to the type of foam when foam is detected during a single round of rinsing includes:

[0019] When foam is detected during a single rinsing cycle and the foam is large and non-rigid, the washing device is controlled to remain stationary for a first preset time period;

[0020] When foam is detected in a single round of rinsing and the foam is small and dense, water is sprayed during the static time of the drive motor to suppress the foam.

[0021] Preferably, in the control method of the washing device, after the step of detecting foam information in the washing device by a foam sensor during the washing phase of the washing device and before the step of determining a washing strategy based on the foam information, the control method includes:

[0022] A detergent delivery strategy is determined based on the foam information.

[0023] Preferably, in the control method of the washing device, the step of detecting foam information in the washing device by a foam sensor during the washing stage of the washing device is specifically:

[0024] During the washing stage of the washing device, real-time acquisition of foam information in the washing device during the current cycle of the driving motor, wherein one cycle of the driving motor includes the process from the start of the driving motor to the end of the current cycle;

[0025] Accordingly, the step of determining a detergent delivery strategy based on the foam information includes:

[0026] Determine whether a bubble signal is detected in the current cycle;

[0027] When the judgment result is no, the preset volume of detergent is added;

[0028] When the judgment result is yes, the control stops adding detergent.

[0029] Preferably, in the control method of the washing device, the washing device is provided with a plurality of reflective foam sensors located at different liquid levels;

[0030] Accordingly, the step of determining the detergent delivery strategy based on the foam information is specifically as follows:

[0031] When the foam sensor at the preset liquid level does not detect a foam signal, controlling the addition of a preset volume of detergent;

[0032] When the foam sensor located at the preset liquid level detects a foam signal, the control stops adding detergent.

[0033] In order to achieve the above-mentioned object, the present application provides a washing device, which comprises:

[0034] at least one processor; and,

[0035] a memory communicatively connected to the at least one processor; wherein,

[0036] The memory stores instructions that can be executed by the at least one processor. The instructions are executed by the at least one processor so that the at least one processor can perform the control method of the washing device as described above.

[0037] In order to achieve the above-mentioned objectives, the present application provides a computer-readable storage medium storing a computer program, which implements the control method of the washing device as described above when executed by a processor.

[0038] The technical solution provided in this application has the following advantages:

[0039] The control method of the washing machine provided by the present application first detects foam information in the washing machine through a foam sensor during the washing phase of the washing machine; then determines a washing strategy based on the foam information. This can avoid the situation where the user visually perceives the presence of foam when taking out clothes, causing the user to think that the clothes are not rinsed clean, thereby reducing the user experience. At the same time, the user may restart the rinsing mode or directly set the maximum number of rinsing cycles, which wastes water and electricity, thereby improving the user experience.

[0040] Furthermore, by setting a strategy for adding detergent, the present application can ensure the best possible washing effect without wasting clothing treatment agents, ensuring the presence of foam during the washing process, and improving the user's washing experience. It also prevents the problem of overflowing foam and poor rinsing effect caused by excessive initial addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] FIG1 is a schematic diagram of a control method for a washing device according to a first embodiment of the present application;

[0043] FIG2 is a schematic diagram of a second embodiment of a control method for a washing device according to the present application;

[0044] FIG3 is a schematic diagram of a third embodiment of a control method for a washing device according to the present application;

[0045] FIG4 is a schematic diagram of a fourth embodiment of a control method for a washing device according to the present application;

[0046] FIG5 is a schematic diagram of a fifth embodiment of a control method for a washing device according to the present application;

[0047] FIG6 is a schematic diagram of an embodiment of a washing device;

[0048] FIG7 is a schematic structural diagram of a reflective foam sensor according to an embodiment of the present invention;

[0049] FIG8 is a schematic diagram of the reflective foam sensor in FIG7 ;

[0050] FIG9 is a schematic diagram of foam detection data during the rinsing process. DETAILED DESCRIPTION

[0051] This embodiment relates to a control method for a washing machine, applicable to washing machines such as washing machines and dishwashers, which are not listed here. Referring to Figures 7 and 8 , the reflective foam sensor 1 includes a light source 11 and a receiver 12. The receiver 12 is located on the same plane as the light source 11 and is configured to receive light reflected from the foam after the detection light emitted by the light source 11 is reflected. The reflective foam sensor 1 is installed in the washing machine.

[0052] It should be noted that the reflective foam sensor 1 can use the above-mentioned receiving element 12 to receive the reflected light waves to determine whether there is foam. It can also be a reflective foam sensor 1 with the following structure. Specifically including:

[0053] The signal processing element 13 is electrically connected to the receiving element 12; wherein, the first preset distance is determined based on the fact that the receiving element 12 can receive light waves emitted by a reflecting surface that is a second preset distance away from the first plane.

[0054] The reflective foam sensor 1 can be applied to, but not limited to, washing machines. However, for ease of description, the following description will take the reflective foam sensor 1 applied to a washing machine as an example.

[0055] The emitting light source 11 can be any narrowband or broadband light from ultraviolet light to near-infrared light, and the radiation angle of the light source is stable, wide-angle radiation. Taking the reflective foam sensor 1 as an example, the emitting light source 11 can also be a downlight in the washing machine drum or a UV germicidal lamp. The configuration of the emitting light source 11 is not specifically limited here. It should be noted that when the emitting light source 11 is an external light source, such as a downlight in the washing machine drum or a UV germicidal lamp, the reflective foam sensor 1 can also be considered to include only the receiving element 12 and the signal processing element 13. This allows the existing light source to be reused, reducing the cost of the reflective foam sensor 1.

[0056] The receiver 12 can be a full-wavelength responsive photoelectric conversion device (photoresistor / photodiode, etc.), used to convert the light waves reflected by the receiving light source 11 into electrical signals. The receiver 12 and the light source 11 are arranged on the same plane and separated by a first preset distance. The first preset distance is determined based on the intensity and radiation angle of the light source 11. Typically, the receiver 12 is arranged within the circular area that can be radiated by the light source 11. The specific position of the receiver 12 can also be determined by the following methods, including:

[0057] Step S1: first place the receiving element 12 and the emitting light source 11 on the same horizontal plane;

[0058] Step S2, placing a reflector at a second preset distance directly above the horizontal plane, with the reflective surface of the reflector facing the receiving element 12 and the emitting light source 11;

[0059] In which, step S2 may also be to place glass of a second preset distance and thickness on the horizontal plane, and place a reflective plate on the glass, with the reflective surface of the reflective plate facing the receiving element 12 and the emitting light source 11 .

[0060] Taking the reflective foam sensor 1 used in a washing machine as an example, the second preset distance is determined based on the glass door of the washing machine. Typically, the second preset distance is equal to the thickness of the glass door. In this embodiment, the second preset distance is 8 mm to 9 mm. Preferably, the second preset distance is 8 mm. The maximum distance between the emitting light source 11 and the receiving element 12, at which the receiving element 12 can receive light waves emitted from a reflective surface located directly above the first plane at the second preset distance, is Lmax, where the first preset distance is less than Lmax.

[0061] Step S3 , moving the receiving element 12 until the receiving element 12 can receive the light wave reflected by the emitting light source 11 .

[0062] It should be understood that when the distance between the receiving element 12 and the emitting light source 11 exceeds the maximum distance at which the emitted light waves can be received, the receiving element 12 will not be able to receive the light waves reflected by the reflector. Therefore, the distance between the receiving element 12 and the emitting light source 11 only needs to be within the maximum distance.

[0063] The signal processing element 13 is electrically connected to the receiving element 12 and is used to amplify and output the electrical signal converted by the receiving element 12 .

[0064] During specific operation, the reflective foam sensor 1 can respond to the presence or absence of foam.

[0065] (1) When only air exists on the surface of the reflective foam sensor 1, most of the light beam from the light source will propagate to a distant place through the air without any reflected light. The light signal received by the receiving element 12 is the light radiated from the side of the light source. The reading is relatively stable during the detection process, and the reflected light intensity is very weak.

[0066] (2) When foam-free washing water exists on the surface of the reflective foam sensor 1, most of the light beam of the light source will propagate to a distant place through the washing water, and only a small amount of turbid matter in the water body will scatter a small amount of incident light. The light signal received by the receiving element 12 is the sum of the side radiation light of the light source and the small amount of scattered light scattered toward the receiving element 12. The reading is relatively stable during the detection process, and the reflected light intensity is slightly higher than the reflected light intensity of the air medium.

[0067] (3) When large non-rigid foam exists on the surface of the reflective foam sensor 1, the light beam of the light source will be reflected by the film layer on the surface of the foam. The reflection angle is related to the form of the foam. The light signal received by the receiver 12 is the sum of the side radiation of the light source and the reflected light reflected from the foam surface toward the receiver 12. During the detection process, the reading changes with the dissolution and displacement of the foam itself. The overall reading is higher than the reading under the condition of non-foam washing water medium.

[0068] (4) When tiny dense foam exists on the surface of the reflective foam sensor 1, most of the light beam of the light source will be reflected by the foam surface film layer, and due to the tiny density of the foam, its reflection position will be closer to the surface of the reflective foam sensor 1, and the reflection direction will be more concentrated. The light signal received by the receiver 12 is the sum of the side radiation light of the light source and the reflected light reflected from the foam surface toward the receiver 12. The reflected light intensity will exceed the upper limit of the signal of the receiver 12. Due to the relative stability of the tiny foam, the reading is the full scale value and remains stable.

[0069] The reflective foam sensor 1 can determine the presence and type of foam by comparing the ratio of the reflected light signal received by the receiving element 12 to the signal of the emitting light source 11 with a set threshold value. Specifically, multiple groups of known data can be used to fit the specific threshold value, etc. In other embodiments, the threshold value can also be determined based on the power of the driving motor in the washing machine, etc.

[0070] In addition, it should be noted that when the reflective foam sensor 1 is applied to a washing machine, large foam refers to foam with a diameter of 3 cm or more; small and dense foam may be foam other than large foam, and no specific limitation is made here.

[0071] Compared with traditional foam detection solutions (such as liquid level sensing solutions and dehydration braking solutions), the reflective foam sensor 1 provided in this application can perform real-time monitoring of foam during the washing and rinsing processes, so that the presence or absence of foam can be accurately distinguished, and the judgment effect matches the perception of the human eye.

[0072] Furthermore, the reflective foam sensor 1 provided in the present application can provide more effective data basis for the intelligent control of the washing process than the traditional detection method that can only detect whether there is serious foam overflow during the dehydration stage.

[0073] Furthermore, compared with other foam detection technologies such as image recognition and thermal radiation temperature distribution sensing technology, which can accurately analyze the distribution of foam in the washing machine drum, the reflective foam sensor 1 can distinguish the presence or absence of foam at a single location at a lower cost.

[0074] The following describes the implementation details of the control method for the washing device of the first embodiment of the present application. The following content is only provided for ease of understanding and is not necessary for implementing this solution.

[0075] The specific process of this embodiment is shown in FIG1 , and specifically includes:

[0076] Step S100, during the washing stage of the washing device, detecting foam information in the washing device through a foam sensor;

[0077] It should be noted that the implementation subject of this application may be, but is not limited to, a washing machine. The foam sensor installed in the washing machine may be, but is not limited to, the aforementioned reflective foam sensor 1. Because the reflective foam sensor 1 offers significant advantages over other existing foam sensors, it is preferred for this application. For ease of explanation, the following uses the reflective foam sensor 1 as an example, and the washing machine as an example. This does not imply that the foam sensor of this application is limited to the reflective foam sensor 1, or that the washing machine is limited to a washing machine.

[0078] The reflective foam sensor 1 has a relatively typical signal change trend in response to the presence or absence of foam and different types of foam. The presence or absence of foam can be distinguished by tracking the response trend of the reflected light signal within a first preset time period.

[0079] The reflective foam sensor 1 can sense the presence of foam in the inner drum of the washing machine from a visual perspective, thereby providing guidance for determining the rinsing effect.

[0080] When the reflective foam sensor 1 is installed at the lower edge of the glass door of a washing machine (a washing machine is used as an example below), and the washing water in the washing machine is at a low level but does not cover the installation position of the reflective foam sensor 1, as long as foam is generated during the rinsing process, the foam moved by the water flow will flow along the glass door of the washing machine to the lower edge and stay there, thereby being detected by the sensor;

[0081] When the washing machine is in a high liquid level that covers the installation position of the reflective foam sensor 1, as long as foam is generated during the rinsing process, the foam will be rolled to the lower edge of the washing machine glass door during the rotation of the driving motor and detected. Foam detection can also be performed after actively draining the water at the end of the rinse cycle to lower the liquid level.

[0082] It should be noted that when the liquid level in the washing machine is parallel to or higher than the installation position of the reflective foam sensor 1, the liquid level at this time is considered to be a high liquid level, and when the liquid level in the washing machine is lower than the installation position of the reflective foam sensor 1, the liquid level at this time is considered to be a low liquid level.

[0083] Step S200: determining a washing strategy based on the foam information.

[0084] It should be understood that the presence of foam during the rinsing process is sensitively detected. When no foam is detected throughout a single round of rinsing, it can be determined that the clothing treatment agent in this round of rinsing has been rinsed out, and the washing device can consider that there is no need to perform the next round of rinsing and directly enter the final dehydration process; when foam is detected during a single round of rinsing, it can be determined that there is still residual clothing treatment agent in this round of rinsing, and the next round of rinsing is required.

[0085] Specifically, step S200 includes:

[0086] Step S210, when no foam is detected in a single rinsing round, controlling to add one or more rinsing rounds, or ending the rinsing round;

[0087] Step S220: When foam is detected in a single round of rinsing, control is directed to the next rinsing.

[0088] As shown in FIG2 , in the second embodiment of the control method for a washing device provided by the present application, before step S200 , the control method further includes:

[0089] Step S300, obtaining the water quality value of the current washing water through the stain index sensor;

[0090] It should be noted that step S300 may be performed after step S100 and before step S200, or before step S100, without any specific limitation. The stain index sensor detects the water quality value of the current wash water. By detecting the water quality value of the current wash water, the degree of contamination of the current wash water can be determined, and the residual stain content and foam residue in the water can be tracked. In other embodiments, the degree of contamination of the water can also be determined by other methods, such as water transmittance, conductivity, TOC, and other indicators.

[0091] Accordingly, step S210 includes:

[0092] In step S211, when no foam is detected in a single round of rinsing and the water quality value of the current washing water is close to the water quality value when the water enters, the control enters the current rinsing as the last round of rinsing.

[0093] It should be understood that if no foam is detected during a single rinse cycle and the current wash water quality value is close to the water quality value at the time of water inflow, it is considered that the residual stain content and foam in the water body are low. In this case, the current rinse cycle is determined to be the last rinse cycle. Otherwise, the rinse cycle is repeated until the conditions are met. This determination not only meets the customer's understanding of a clean rinse without residual fabric treatment agent, but also ensures that the clothes are free of residual stains, improving the final rinsing effect.

[0094] In addition, if the current wash water quality value is close to the water quality value at the time of water inflow, the method can be to determine whether the absolute value of the difference between the current wash water quality value and the water quality value at the time of water inflow is less than or equal to a set threshold. This threshold can be user-defined, factory-set, or can be set according to different needs.

[0095] As shown in FIG3 , in the third embodiment of the control method for a washing device provided by the present application, step S200 further includes:

[0096] Step S230: When foam is detected during a single round of rinsing, a washing strategy is determined based on the type of foam.

[0097] It should be understood that differentiating the foam forms generated in a washing machine facilitates more accurate determination of washing strategies.

[0098] More specifically, step S230 includes:

[0099] Step S231: When foam is detected during a single rinsing cycle and is non-rigid and large, the washing device is controlled to remain stationary for a first preset time period;

[0100] It should be understood that for non-rigid large bubbles, the bubbles are easier to break down by themselves. You can let it stand for a while at the end of this round of rinsing, waiting for the bubbles to dissipate by themselves before draining the water, and try to dissipate the bubbles as much as possible and drain them out of the washing machine with the water flow.

[0101] When large, non-rigid foam bubbles are present on the surface of the reflective foam sensor 1, the light beam from the light source will be reflected by the foam surface film. The reflection angle is related to the foam's shape. The light signal received by the receiver 12 is the sum of the light radiated from the side of the light source and the light reflected from the foam surface toward the receiver 12. During the detection process, the reading changes as the foam dissipates and moves. Specifically, the first ratio decreases as the foam dissipates and moves. The first ratio is the ratio of the reflected light signal to the detection light signal within the second preset time period.

[0102] Therefore, when the first ratio is greater than or equal to the second threshold and less than the third threshold, foam is considered to be detected and is non-rigid large foam. The second threshold is 30%-40%, and the third threshold is 70%-80%. Preferably, when the first ratio is between 45%-70%, the foam is considered to be non-rigid large foam.

[0103] Step S232: When foam is detected in a single-round rinse and is small and dense, water is sprayed during the rest time of the driving motor to suppress the foam.

[0104] It should be understood that for fine and dense foam, fresh tap water can be introduced through the spray arm during the motor's idle time at the end of this rinsing round to suppress the foam, and the drain pump performs intermittent drainage operation to destroy and discharge the foam as much as possible.

[0105] In addition, when small and dense foam exists on the surface of the reflective foam sensor 1, most of the light beam of the light source will be reflected by the film layer on the surface of the foam, and due to the small density of the foam, its reflection position will be closer to the sensor surface, and the reflection direction will be more concentrated. The light signal received by the receiver 12 is the sum of the side radiation light of the light source and the reflected light reflected from the foam surface toward the receiver 12. The reflected light intensity will exceed the upper limit of the signal of the receiver 12. Due to the relative stability of the small and dense foam, the reading is the full scale value and remains stable.

[0106] Therefore, when the first ratio is greater than or equal to the third threshold and may be less than the fourth threshold, the foam present on the surface of the reflective foam sensor 1 is determined to be fine and dense foam. Preferably, the condition for determining whether the foam present on the surface of the reflective foam sensor 1 is fine and dense foam can be defined as follows: when the first ratio is between 95% and 100%, the foam present is determined to be fine and dense foam.

[0107] Taking the reflective foam sensor 1 installed at the bottom edge of a glass door as an example, several signal points within one rotation cycle of the drive motor in the washing machine can be taken. The average signal, median signal, average signal after removing outliers, or median signal can be calculated from these signal points as the first signal value. If the absolute value of the first signal value is greater than 35.6%, foam is considered to be present. A further determination is made as to whether the absolute value of the first signal value is greater than 69.8%. If so, the foam is considered to be non-rigid, large, and easily breakable. Otherwise, the foam is considered to be fine and dense.

[0108] For example:

[0109] Figure 9 illustrates foam detection data from a single rinse cycle. After each water intake, the washing machine's drive motor rotates, causing the laundry to mix with the rinse water and create foam. This foam is sensed by reflective foam sensor 1, indicating the presence of foam. As the number of rinse cycles increases, the laundry treatment agent is diluted and discharged from the washing machine through the rinsing and draining operations. During the second rinse cycle, the foam signal sensed by reflective foam sensor 1 weakens somewhat, but still remains. During the third rinse cycle, the signal sensed by reflective foam sensor 1 no longer reflects the typical foam signal, indicating that the laundry treatment agent has been completely rinsed out during the third rinse cycle. This indicates that the laundry treatment agent has been completely rinsed out, and this rinse cycle is the final one. Compared to traditional two-round rinsing, determining the number of rinse cycles based on the presence of foam detected by the foam sensor in real time better meets user requirements for washing machines, namely, sufficient removal of residual laundry treatment agent and visually detecting the absence of foam when removing clothes.

[0110] As shown in FIG4 , in the fourth embodiment of the control method for a washing machine provided by the present application, after step S100 and before step S200 , the control method includes:

[0111] Step S400: determining a detergent delivery strategy based on the foam information.

[0112] It should be understood that by periodically sensing the foam generation during the main wash phase, the initial amount of clothing treatment agent can be appropriately reduced, and the additional amount of clothing treatment agent can be guided in real time according to the foam generation during the washing process.

[0113] The main wash process of a washing machine can be divided into several cycles, each of which can include several motor rotation and stop processes. The motor rotation rate and frequency may or may not change between cycles. A small amount of laundry detergent is initially added to the washing machine. During the first cycle, the foam sensor continuously records signal data. If no foam signal is detected during a single cycle, the laundry detergent needs to be added, and the next wash cycle will begin while foam monitoring is also performed. This cycle continues until a signal indicating the presence of foam is detected within a certain cycle. At this time, the laundry detergent addition is stopped, and the washing process continues to the end.

[0114] The mainstream methods for dispensing laundry treatment agent in existing drum washing machines are mainly divided into manual dispensing by the user and automatic dispensing based on the weight of the load. Both manual dispensing and automatic dispensing based on the weight of the load vary to a certain extent from the actual demand for laundry treatment agent, risking insufficient dispensing resulting in poor cleaning results and excessive dispensing resulting in residual laundry treatment agent and overflow, which can damage the washing machine. Beyond the mainstream dispensing method, some washing machines have introduced the concept of replenishing laundry treatment agent. This involves dispensing laundry treatment agent normally during the initial dispensing phase. During operation, the replenishment amount is calculated by detecting the replenishment level and the washing machine is controlled to automatically replenish the amount. This method compensates for the problem of actual water consumption exceeding the expected water consumption due to water absorption by the clothing material, which dilutes the initial laundry treatment agent concentration. However, these methods still fail to account for laundry treatment agent consumption during the washing process, and thus cannot fully ensure that the amount of laundry treatment agent dispensed is appropriate and consistent with the required amount of laundry treatment agent. In terms of user experience, it is not intuitive to know whether the amount of clothing treatment agent added is appropriate, which can also cause users to distrust the washing process. They may even try to eliminate this distrust by restarting the washing machine for additional washing, which wastes water, electricity, and effort. However, this application can solve the above problem by monitoring the occurrence of foam during the washing process in real time and guiding the replenishment of clothing treatment agent during the washing process. Specifically, it includes:

[0115] At the beginning of the wash cycle, the initial amount of laundry treatment agent can be determined based on the load and weight information. Note that this initial amount should be the minimum amount for the load and weight of the product type, i.e., the amount of laundry treatment agent consumed when the load is very clean at this weight. Of course, the amount of laundry treatment agent added each time can also be a fixed value, which can be determined by (upper limit of laundry treatment agent - minimum amount of laundry treatment agent) / number of cycles for the load and weight of the product type.

[0116] More specifically, step S100 includes:

[0117] Step S110, during the washing stage of the washing device, obtaining in real time information on foam in the washing device during a current cycle of the driving motor, wherein a cycle of the driving motor includes a process from when the driving motor rotates to when it stops;

[0118] Accordingly, the step S400 includes:

[0119] Step S410, determining whether a foam signal is detected in the current cycle;

[0120] Step S420: When the judgment result is no, controlling the addition of a preset volume of detergent;

[0121] It should be understood that a dosage limit can also be set as needed, where the cumulative detergent dosage volume is ≤ the detergent dosage limit. The detergent dosage limit can be determined based on the current load fabric information and weighing information, and the laundry treatment agent dosage limit can be factory-set or user-defined, without specific limitations here. The preset volume for each dosage can be set using the fixed value described above.

[0122] Step S430: When the judgment result is yes, the control stops adding detergent.

[0123] As shown in FIG5 , in the fifth embodiment of the control method for a washing device provided by the present application, the washing device is provided with a plurality of reflective foam sensors 1 located at different liquid levels; accordingly, step S400 is specifically as follows:

[0124] Step S440, when the foam sensor at the preset liquid level does not detect a foam signal, controlling the addition of a preset volume of detergent;

[0125] Step S450: When the foam sensor at the preset liquid level detects a foam signal, the detergent is stopped from being added.

[0126] It should be understood that since loads of different materials have different abilities to generate foam during the washing process, different foam levels can be set in different washing modes. The foam level is sensed by installing multiple sensors, and the foam is replenished to the set foam level according to the above logic, thereby further ensuring the washing efficiency in each washing mode.

[0127] Therefore, step S440 includes the correspondence between the load of different materials and the preset liquid level. Usually, washing machines have many modes, such as cotton, linen, mixed, fiber, etc., and the preset liquid level can also be determined according to the washing mode selected by the user.

[0128] This application sets a strategy for adding detergent to ensure the best possible washing effect without wasting laundry treatment, ensuring the presence of foam during the washing process, and improving the user's washing experience. It also prevents problems such as overflowing foam and poor rinsing results caused by excessive initial addition.

[0129] For example:

[0130] If the clothes are heavily soiled and no laundry treatment agent is initially added, 10mL of laundry treatment agent is first added during the wash cycle. Reflective foam sensor 1 then determines the foam generation status every 5 minutes. If no foam is generated within this period, an additional 10mL of laundry treatment agent is added and the above process is repeated. After the fourth addition of 10mL of laundry treatment agent, reflective foam sensor 1 detects the typical foam value for a low liquid level, at which point the required amount of laundry treatment agent is determined to have been added. This method of adding laundry treatment agent during the wash cycle with heavily soiled clothes provides a better wash result than the default initial addition of 20mL of laundry treatment agent based on weighing.

[0131] When the clothes are relatively clean, no laundry treatment agent is initially added. During the wash cycle, 10mL of laundry treatment agent is added, and the foam sensor detects typical foam values ​​at a low liquid level within the first cycle. This determines that the required amount of laundry treatment agent has been added. For washes with relatively clean clothes, this addition of 10mL less laundry treatment agent than the default initial 20mL dosage based on weighing is sufficient to ensure a consistent wash result. This not only saves unnecessary overdosing based on washing needs and prevents overflow, but also results in less laundry treatment agent residue during the rinse cycle, making it easier to eliminate foam while rinsing, while maintaining the same number of rinses.

[0132] In order to achieve the above-mentioned purpose, the present application also provides a washing device, as shown in Figure 6, the washing device includes at least one processor 501; and a memory 502 communicatively connected to the at least one processor 501; wherein the memory 502 stores instructions that can be executed by the at least one processor 501, and the instructions are executed by the at least one processor 501 so that the at least one processor 501 can execute the above-mentioned control method of the washing device.

[0133] The memory 502 and processor 501 are connected using a bus. The bus can include any number of interconnected buses and bridges, connecting various circuits of one or more processors 501 and memory 502. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits. These are all well known in the art and are therefore not described further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be a single component or multiple components, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by the processor 501 is transmitted over a wireless medium via an antenna. Furthermore, the antenna receives data and transmits it to the processor 501.

[0134] The processor 501 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 502 can be used to store data used by the processor 501 when performing operations.

[0135] In order to achieve the above-mentioned objectives, the present application provides a computer-readable storage medium storing a computer program, which implements the control method of the washing device when executed by a processor.

[0136] That is, those skilled in the art will understand that all or part of the steps in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a program, which is stored in a storage medium and includes a number of instructions for causing a device (which may be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc., various media that can store program code.

[0137] Obviously, the embodiments described above are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, ordinary technicians in this field can make other different forms of changes or modifications without making any creative work, which should fall within the scope of protection of this application.

Claims

1. A control method for a washing device, characterized in that: The steps include: During the washing stage of the washing device, the foam information in the washing device is detected by the foam sensor; A washing strategy is determined based on the foam information.

2. The control method of a washing device according to claim 1, characterized in that: The step of determining a washing strategy according to the foam information comprises: When no foam is detected in a single round of rinsing, the control is to add one or more rinsings, or to end the rinsing; When foam is detected during a single rinse, control proceeds to the next rinse.

3. The control method of a washing device according to claim 2, characterized in that: Before the step of determining a washing strategy according to the foam information, the control method further includes: Obtain the water quality value of the current washing water through the stain index sensor; Accordingly, when no foam is detected in a single round of rinsing, the step of controlling to add one or more rinsings or to end the rinsing includes: When no foam is detected in a single round of rinsing and the water quality value of the current washing water is close to the water quality value when the water enters, the current rinsing is controlled to be the last round of rinsing.

4. The control method of a washing device according to claim 1, characterized in that: The step of determining a washing strategy according to the foam information further includes: When foam is detected during a single-round rinse, the washing strategy is determined based on the type of foam.

5. The control method of a washing device according to claim 4, characterized in that: The step of determining a washing strategy according to the type of foam when foam is detected during a single round of rinsing comprises: When foam is detected in a single-round rinse and the foam is non-rigid large foam, the washing device is controlled to stand still for a first preset time; When foam is detected during single-round rinsing and the foam is small and dense, water is sprayed during the static time of the drive motor to suppress the foam.

6. The control method of a washing device according to claim 1, characterized in that: After the step of detecting foam information in the washing device by the foam sensor during the washing stage of the washing device and before the step of determining a washing strategy according to the foam information, the control method includes: The detergent placement strategy is determined according to the foam information.

7. The control method of a washing device according to claim 6, characterized in that: The step of detecting foam information in the washing device by the foam sensor during the washing stage of the washing device is specifically as follows: During the washing stage of the washing device, real-time acquisition of foam information in the washing device during the current cycle of the driving motor, wherein one cycle of the driving motor includes the process from the start of the driving motor to the end of the current stop process; Accordingly, the step of determining a detergent delivery strategy according to the foam information includes: Determine whether a bubble signal is detected in the current cycle; When the judgment result is no, the preset volume of detergent is added; When the judgment result is yes, the control stops adding detergent.

8. The control method of a washing device according to claim 6, characterized in that: The washing device is provided with a plurality of reflective foam sensors located at different liquid levels; Accordingly, the step of determining the detergent delivery strategy according to the foam information is specifically as follows: When the foam sensor at the preset liquid level does not detect a foam signal, controlling the addition of a preset volume of detergent; When the foam sensor located at the preset liquid level detects a foam signal, the control stops the addition of detergent.

9. A washing device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the control method of the washing device according to any one of claims 1 to 8.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the control method of the washing machine according to any one of claims 1 to 8 is implemented.

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