WO2024122918A1

WO2024122918A1 - Method for reducing foam, and washing machine

Info

Publication number: WO2024122918A1
Application number: PCT/KR2023/018311
Authority: WO
Inventors: 김가연; 김종룡; 김진호; 박진영; 강동수
Original assignee: 엘지전자 주식회사
Priority date: 2022-12-08
Filing date: 2023-11-14
Publication date: 2024-06-13

Abstract

The present invention relates to a method for reducing foam, and a washing machine. The washing machine according to one embodiment of the present invention injects a fabric softener and removes foam or confirms that foam is generated, and stores history information, and thus provides guide information.

Description

How to reduce foam and washing machine

The present invention relates to a method for reducing foam and a technology related to a washing machine.

If excessive detergent was added during the washing process, foam was generated, causing the rinsing process to be repeated and washing time to increase. Additionally, water consumption increased during the rinsing process with large amounts of water added.

However, a situation arises in which the user does not know the exact amount of detergent and thus adds a lot of detergent. Therefore, there is a need for methods to reduce foaming and various components related thereto. In particular, to reduce foam generation, technology to guide the amount of detergent and technology to reduce generated foam are needed.

In order to solve the above-mentioned problems, this specification proposes a method for quickly removing detergent foam during the washing process.

In this specification, we would like to propose a method of adding fabric softener to quickly remove detergent foam during the washing process.

In this specification, we propose a method of selectively adding fabric softener according to the amount of detergent foam generated during the washing process, washing method, past history, etc.

In addition, in order to solve the above-mentioned problem, this specification seeks to provide guide information for cases where foam has been detected and foam removal has been performed during the washing process.

In this specification, when more detergent is added than the standard amount and foam is generated, guide information on the use of detergent is provided to the user to prevent the laundry rinse time from increasing due to this.

In this specification, when a large amount of detergent has been put into the washing machine, users can check guide information through a smartphone or washing machine during or after the wash to prevent excessive use of detergent.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention that are not mentioned can be understood by the following description and will be more clearly understood by the examples of the present invention. Additionally, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof indicated in the patent claims.

The washing machine according to an embodiment of the present invention includes a fabric softener input module and performs washing, rinsing, and dehydration functions. The first foam removal logic through water supply and drainage, and the fabric softener input of the water supply and drainage and fabric softener input module Through this, the function module that executes the second bubble removal logic and the occurrence of bubbles are confirmed during the operation of the function module, and the first bubble removal logic or the second bubble removal logic is performed using the amount of bubbles generated and the course information set in the function module. It includes a controller that selects and controls the function module according to the selected foam removal logic.

The method of reducing foam by removing foam by adding a fabric softener according to an embodiment of the present invention includes the steps of the function module of the washing machine performing a set course and the controller of the washing machine confirming and generating foam during the operation of the function module. A step of selecting the first bubble removal logic or the second bubble removal logic using the foam amount and the course information set in the function module, and when the first bubble removal logic is selected, the function module performs bubble removal through water supply and drainage. When the first foam removal step and the second foam removal logic are selected, a second foam removal step is included in which foam removal is performed through water supply and drainage and the addition of fabric softener.

A washing machine that reduces foam by providing guide information about laundry detergent according to an embodiment of the present invention removes foam from the functional module by checking foam generation during the operation of the functional module and the functional module that performs washing, rinsing, and dehydration functions. It includes a controller that operates the function, generates history information about the operation of the foam removal function, and stores it in a memory, and a washing machine communication unit that transmits the history information to the server under the control of the controller.

A method of reducing foam by providing guide information about a laundry detergent according to an embodiment of the present invention includes the steps of the controller of the washing machine confirming foam generation during the operation of the functional module of the washing machine and operating the foam removal function of the functional module; It includes a step of the controller generating history information about the operation of the foam removal function and storing it in a memory, and a step of the controller controlling the washing machine communication unit of the washing machine and transmitting the history information to the server.

A method of reducing foam by providing guide information about laundry detergent according to another embodiment of the present invention includes the steps of the server communication unit of the server receiving history information about the operation of the foam removal function from the washing machine, and the server controller of the server receiving history information It includes a step of generating guide information using and a step of the server controller of the server transmitting the guide information to a user terminal linked to the washing machine.

When applying the present invention, detergent foam during the washing process can be quickly removed.

When applying the present invention, fabric softener can be added to quickly remove detergent foam during the washing process.

When applying the present invention, fabric softener can be selectively added depending on the amount of detergent foam generated during the washing process, washing method, past history, etc.

When the present invention is applied, guide information can be provided when foam is detected and foam removal is performed during the washing process.

When applying the present invention, if more detergent is added than the standard amount and foam is generated, guide information on detergent use can be provided to the user to prevent the laundry rinse time from increasing due to this.

When the present invention is applied, when users put a large amount of detergent into the washing machine, they can prevent over-injection of detergent by allowing users to check guide information through a smartphone or washing machine during or after the wash.

The effects of the present invention are not limited to the effects described above, and those skilled in the art can easily derive various effects of the present invention from the configuration of the present invention.

Figure 1 is a diagram showing the process of removing foam in a washing machine and the configuration of devices according to an embodiment of the present invention.

Figure 2 is a diagram showing the configuration of a washing machine according to an embodiment of the present invention.

Figure 3 is a diagram showing a process in which a washing machine removes foam according to an embodiment of the present invention.

Figure 4 is a diagram for determining foam generation according to an embodiment of the present invention.

Figure 5 is a diagram showing the process of determining the amount of fabric softener input according to an embodiment of the present invention.

Figure 6 is a diagram showing the interaction between a washing machine, a server, and a user terminal according to an embodiment of the present invention.

Figures 7 and 8 are diagrams showing guide information related to foam removal displayed on a user terminal according to an embodiment of the present invention.

Figure 9 is a diagram showing the configuration of the process and devices by which a washing machine provides a guide for inserting the amount of detergent according to an embodiment of the present invention.

Figures 10 and 11 are diagrams showing the process of detecting foam during operation of a washing machine according to an embodiment of the present invention.

Figure 12 is a diagram showing a process in which a washing machine generates and outputs guide information according to an embodiment of the present invention.

Figure 13 is a diagram showing components of a washing machine according to an embodiment of the present invention.

Figure 14 is a diagram showing the components of a server according to an embodiment of the present invention.

Figure 15 is a diagram showing the process of detecting the tax amount according to an embodiment of the present invention.

Figure 16 is a diagram showing guide information displayed on a user terminal according to an embodiment of the present invention.

Hereinafter, with reference to the drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. The present invention may be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts that are not relevant to the description are omitted, and identical or similar components are given the same reference numerals throughout the specification. Additionally, some embodiments of the present invention will be described in detail with reference to the exemplary drawings. In adding reference numerals to components in each drawing, identical components may have the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description may be omitted.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the components are not limited by the term. When a component is described as being “connected,” “coupled,” or “connected” to another component, that component may be directly connected or connected to that other component, but there are no other components between each component. It should be understood that may be “interposed” or that each component may be “connected,” “combined,” or “connected” through other components.

Additionally, in implementing the present invention, the components may be subdivided for convenience of explanation, but these components may be implemented in one device or module, or one component may be implemented in multiple devices or modules. It may be implemented separately.

In this specification, we propose two technologies to solve the foaming problem caused by the problem.

In the past, if an excessive amount of detergent was added to a washing machine during the washing process, water was added to remove the foam and the rinsing process was repeated. However, there is a problem that the amount of water input increases and the washing time increases during this process. Accordingly, an effective method for removing foam while saving water and time is needed. Therefore, if bubbles occur, we will look at techniques to eliminate them.

Conventionally, washing machines provided a foam detection function to detect when foam was generated during the washing process. If bubbles are detected, additional work can be performed to remove the bubbles.

However, foam occurs when the user adds more detergent than the standard amount. Therefore, in addition to detecting bubbles, technology is needed to guide users to add less detergent. Therefore, it is a technology that notifies the user when bubbles occur and reduces the possibility of bubbles occurring in the future.

Therefore, in this specification, in order to reduce foam, the present invention examines a method of removing foam by adding a fabric softener and a washing machine.

Additionally, this specification examines a method of providing guide information on laundry detergents and washing machines to reduce foaming.

Hereinafter, we will look at a method and device for removing bubbles detected by a washing machine during the washing process.

The washing machine 100 detects foam and adds fabric softener to remove the foam (S1). And operation information related to such bubble removal can be transmitted to the server 300. The washing machine 100 can transmit information according to each operation (start time, end time, function performed, amount of fabric softener added during the foam removal process, etc.) to the server 300, and this information is sent to the server 300. It is saved (S2).

Of course, in the S1 process, if there is information to be notified to the user regarding foam removal, the washing machine 100 may store the information within the washing machine 100. Afterwards, the stored information can be notified to the user at a later date, or at the end of washing, or when the door of the washing machine is opened.

And the server 300 can transmit the information provided by the washing machine 100 to the user terminal 500 as a push message (S3). At this time, the user terminal 500 is a terminal owned by a user who owns or uses the washing machine 100, and the user terminal 500 can be linked to the washing machine 100 via the server 300.

The method of linking the user terminal 500 and the washing machine 100 is a method in which the washing machine 100 provides information for linking to the user terminal 500, and the user terminal 500 provides a predetermined method for linking with the washing machine 100. It can be implemented in various ways, such as by installing an app, and the present invention is not limited to this.

In the configuration of FIG. 1, the washing machine 100 may detect foam caused by a taxing agent during the washing process, add fabric softener to remove foam, and provide operation information to the user indicating that foam removal work has been performed.

Over Detergent means when the amount of detergent added is large compared to the amount or weight of laundry, or when the amount of detergent is large compared to the amount of water. Alternatively, taxation means that a lot of detergent is added to the washing machine according to a specific standard set. Alternatively, taxation refers to cases where the amount of residual detergent during the washing process exceeds a certain standard. In this specification, taxation refers to various states in which a large amount of tax is input compared to a preset standard.

Figure 2 is a diagram showing components of a washing machine according to an embodiment of the present invention.

The washing machine 100 includes a function module 190 that performs washing, rinsing, and spin-drying functions, a controller 150, a washing machine communication unit 160, an interface 170, and a memory 180. The functional module 190 includes a washing tub, a motor that controls the washing tub, and auxiliary devices that supply and drain water. In more detail, the functional module 190 may include a fabric softener input module 192 and a circulation pump 194.

The function module 190 includes a fabric softener input module 192 and performs washing, rinsing, and dehydration functions. In addition, the function module 190 executes the first foam removal logic through water supply and drainage and the second foam removal logic through water supply and drainage and fabric softener input from the fabric softener input module 192. The second foam removal logic is a logic in which the fabric softener input module 192 injects fabric softener to remove bubbles.

The controller 150 checks the generation of bubbles during the operation of the function module 190, operates the bubble removal function of the function module 190, generates work information about the operation of the bubble removal function, and stores it in the memory 180. . In particular, the controller 150 can perform a foam removal function by controlling the fabric softener input module 192 according to the washing course, washing time, and foam generation amount.

That is, the controller 150 checks the generation of bubbles during the operation of the function module, selects the first bubble removal logic or the second bubble removal logic using the amount of bubbles generated and the course information set in the function module 190, and selects the selected bubble removal logic. The function module 190 can be controlled according to the bubble removal logic. The foam removal logic includes a set of values for judgment criteria for removing foam, or information about the functions of the washing machine that must be performed to remove foam. Alternatively, the bubble removal logic includes commands, programs, or software that define the tasks that the controller 150 must perform to remove bubbles.

The washing machine communication unit 160 transmits work information related to foam removal to the server 300 under the control of the controller 150. That is, the washing machine communication unit 160 transmits task information related to execution of the foam removal logic to the server 300.

Additionally, the washing machine communication unit 160 may receive the result of the user's response to task information related to foam removal from the server 300. For example, the work result includes information about the injection of fabric softener, and the user who confirms this through the user terminal 500 can select “Stop adding fabric softener when foam is generated.” Upon receiving such a reaction result, the controller 150 of the washing machine 100 removes the foam through processes such as rinsing and draining without adding fabric softener the next time foam is generated.

The types of work information that the washing machine communication unit 160 transmits to the server 300 include the number of spin-drying delays that occur during the operation of the foam removal function of the function module 190, the water level value, the current increase value for the rotation of the washing machine, Alternatively, it may include any one or more of the time spent operating the foam removal function. Additionally, the length of the delay (for example, if the initial washing time was expected to be 1 hour and 10 minutes, but due to defoaming it became 1 hour and 30 minutes, there is a 20-minute delay), the amount of water added due to watering and spin (how many liters), and the amount of water added. The amount of fabric softener can also be included in the work information.

If the work result includes information about the addition of fabric softener and the user who confirmed this through the user terminal 500 does not instruct to stop adding fabric softener, the controller 150 of the washing machine 100 generates the next foam. You can also effectively remove foam by adding fabric softener.

The memory 180 stores information related to the operation of the washing machine 100. The memory 180 can maintain stored information even when electricity is not supplied.

The controller 150 performs the second bubble removal logic when the amount of foam is greater than the standard value or when the first end time when performing the first bubble removal logic according to the set course information is later than the expected second end time of the course information. You can choose. For example, assume that the set course information is a quick wash course. Here, the controller 150 may determine that three times of water supply and drainage are required when performing the first foam removal logic depending on the amount of foam, etc. And the controller 150 takes time for the foam removal process (first foam removal logic) through water supply/drainage, and as a result, at 1:20, later than the initial expected end time of the quick wash cycle (e.g., 1 p.m.) You can calculate the completion of washing.

Accordingly, when applying the second foam removal logic (fabric softener injection method), the controller 150 can apply the second foam removal logic to quickly complete the wash course if the expected washing end time is 1:05 PM. .

The controller 150 detects the amount of foam according to various sensors arranged in the function module 190 or the operating situation (S11). Then check whether bubble removal is necessary (S12). If foam removal is not necessary, proceed to the dehydration course (S19).

Meanwhile, if foam removal is necessary, the controller 150 starts foam removal logic (S13). The controller 150 checks whether the course currently in progress is a course that must be completed sooner than the standard course (S14). In the case of a course that must be completed quickly, rapid removal of foam is necessary, so the controller 150 operates the foam removal logic (second foam removal logic), and when the function module 190 performs water supply in this process, the fabric softener input module ( 192) is controlled to inject fabric softener and operate the circulation pump 194 (S16).

Meanwhile, if it is determined as No in step S14, the controller 150 checks whether the amount of foam is large (S15). If there is a large amount of foam, step S16 (second foam removal logic) is also performed. On the other hand, when there are not many bubbles, the controller 150 operates a general bubble removal logic (first bubble removal logic) (S17). After performing the bubble removal operation of S17 or S16, the controller 150 checks whether the bubble removal logic can be terminated (S18). The amount of remaining foam is checked or the completion of the foam removal logic is checked using sensor values calculated by other function modules 190 (S18). If more bubble removal logic is needed, the controller 150 may repeat steps S13 to S17.

If the foam removal logic is determined to end in S18, the controller 150 proceeds with dehydration (S19).

The embodiment of FIG. 3 shows a process in which fabric softener is added to remove foam when a large amount of foam is detected due to detergent while the washing machine 100 is washing, rinsing, and dehydrating. In particular, when it detects that there is a lot of foam during washing, rinsing, and dehydration, the washing machine 100 drains the foam, adds water and fabric softener together, supplies water containing the fabric softener, and then controls the circulation pump to perform operation processes such as tumbling. Through this, the fabric softener can be circulated and defoamed. Then, the washing machine 100 drains the washing water defoamed by the fabric softener and proceeds to the next step.

When applying the embodiment of FIG. 3, compared to the conventional drain-water supply-drain method to remove foam and lower the detergent concentration of washing machines and clothes, foam can be removed in a short time and with a small amount of water.

This can reduce the amount of water and time required to remove foam by using a fabric softener to reduce the probability of foaming.

In the process of FIG. 3, the controller 150 can measure the amount of fabric softener added. And based on the amount of fabric softener added to remove foam, the amount of fabric softener that needs to be added or added at the time the fabric softener is originally added (timely injection point), such as during the last rinse, is calculated. In addition, the controller 150 controls the addition of the fabric softener at the right time by reflecting the amount of fabric softener added in the foam removal process.

In order to effectively remove foam when the washing machine 100 generates a lot of foam in the washing machine during washing, rinsing, and dehydration, the controller 150 determines that a lot of foam has been generated, drains the washing water containing the foam in the washing machine, and then adds fabric softener. Add it with water and remove the foam using a chemical method.

For this purpose, the controller 150 may determine that it is foam when the water level rises to the level of a washing tube due to insufficient drainage due to foam during dehydration. In one embodiment, the controller 150 checks whether bubbles are generated using the water level information detected by the water level sensor constituting the function module 190.

Alternatively, the controller 150 may determine that it is foam if the actual RPM is insufficient compared to the original target RPM (Target RPM) due to resistance caused by foam when entering dehydration. The bubble determination process through RPM is examined in Figure 4.

Figure 4 is a diagram for determining foam generation according to an embodiment of the present invention. The washing machine constituting the functional module 190 can be rotated by a motor. At this time, if a large amount of foam is generated, the RPM of the motor that rotates the washing machine increases and spin-drying is delayed.

As shown in the graph of FIG. 4, the controller 150 can determine whether dehydration is delayed due to foam by determining whether the RPM increases.

P1, P2, and P3 show the RPM of the motor that rotates the washing machine for dehydration, respectively. When spin-drying is completed, the RPM rises rapidly as indicated by

numbers

41, 42, 43, and 44, which means that many bubbles have been generated in the washing machine. Therefore, when the RPM rapidly increases like this, the controller 150 determines that the friction force inside and outside the washing tub has increased, and this increase in friction force can be determined to be caused by foam.

As RPM increases, the controller 150 may inject fabric softener to remove foam.

Figure 5 is a diagram showing the process of determining the amount of fabric softener input according to an embodiment of the present invention. The controller 150 determines the amount of foam and the washing course (S21). Embodiments for determining the amount of foam include using a water level sensor, increasing RPM, or analyzing images taken with an internal camera. The controller 150 compares the time required to remove bubbles with the time required to perform a washing course and determines whether to remove bubbles using general bubble removal logic or by adding fabric softener. .

Additionally, the controller 150 determines whether it is possible to add fabric softener to the laundry (S22). The controller 150 determines the necessity of adding fabric softener depending on the type of fabric. Then, the controller 150 checks whether the user previously agreed to perform the foam removal logic using fabric softener. This includes a process in which the result is transmitted to the server 300 when the user agrees or disagrees with removing foam by adding fabric softener in the selection regarding foam removal logic displayed on the user terminal 500.

If the user has not previously consented to foam removal using fabric softener through the user terminal 500, etc., the controller 150 may control the washing machine 100 not to perform the foam removal function using fabric softener. there is.

The controller 150 may determine whether foam removal using a fabric softener is necessary according to the results determined and confirmed in S21, S22, and S23 (S23) and proceed to step S16 or S17 of FIG. 3 accordingly. Meanwhile, in S23, the controller 150 may determine the amount of fabric softener input in response to the determined foam amount.

For example, if the washing course is rapid washing, the controller 150 can add a large amount of fabric softener to remove foam.

Additionally, even if the user agrees to remove foam using fabric softener, the controller 150 can add a large amount of fabric softener to remove foam. If the user does not separately express consent or opposition to foam removal after checking the foam removal operation information according to the addition of fabric softener through the user terminal 500, this information is stored in the memory 180 in the washing machine 100. It is saved as response information.

The controller 150 can use the response information to adjust the amount of fabric softener to be added in the foam removal process.

If the user agrees through the user terminal 500, etc., the controller 150 adds a large amount of fabric softener for effective foam removal, and if there is no indication of consent or opposition, the controller 150 removes foam and To save on the amount of fabric softener, add a medium amount of fabric softener. If an objection is expressed, the controller 150 performs a foam removal operation without adding fabric softener. And the corresponding task information may be transmitted to the user terminal 500 via the server 300.

When applying the above-described embodiment, foam can be removed by a chemical method of adding a fabric softener. In the case of detergents, most are composed using anionic surfactants, and if there is a lot of anionic surfactants, foam may be generated. On the other hand, fabric softener is composed of cationic surfactant, so it can inhibit the activity of anionic surfactant by reacting with anionic surfactant, and through this, foam caused by detergent can be defoamed by chemical method.

The controller 150 can select the time to add fabric softener to remove foam, before entering the laundry dehydration process and after the draining process. At this point, the detergent concentration is highest and foam is most likely to occur.

Accordingly, the controller 150 can supply water and fabric softener together after draining water to remove foam through reaction with the anionic surfactant, and enter the dehydration process.

When adding a softener, the controller 150 must operate the circulation pump 194 in order to maximize the foaming effect caused by the softener. In addition, the controller 150 adjusts the amount of fabric softener input according to the level of foam amount detected by foam detection, so that an appropriate amount of fabric softener can effectively remove foam.

The function module 190 of the washing machine 100 performs the set course (S31). Then, the controller 150 of the washing machine 100 checks foam generation during the operation of the function module 190 and uses the amount of foam generated and the course information set in the function module 190 to perform the first foam removal logic or the second foam removal logic. Select the bubble removal logic. And the function module 190 of the washing machine 100 performs the selected first or second foam removal logic (S32).

When the first bubble removal logic is selected, the function module 190 performs bubble removal through water supply and drainage. When the second foam removal logic is selected, the function module 190 performs foam removal through water supply and drainage and fabric softener input.

When foam removal is completed, the washing machine communication unit 160 transmits task information related to execution of the foam removal logic to the server 300 (S33). Then, the server 300 generates guide information based on the task information (S34). Guide information may include task information as is. Alternatively, the guide information may include a statement confirming whether the user agrees or disagrees with adding fabric softener to remove foam.

The server 300 transmits guide information to the user terminal 500 (S35). Methods of transmitting guide information include a push message transmission method or an alarm method of an app installed on the user terminal 500.

The user terminal 500 displays guide information and transmits the result of the user's response or non-response to the guide information to the server 300 as response information (S36, S37).

For example, in order to reduce time and water consumption during the defoaming process, the guide information asks, "Do you want to add fabric softener when defoaming?" and the user terminal 500 includes an interface that allows you to select “yes” or “no”.

Alternatively, the guide information is: "Would you like to activate automatic detergent dispensing to remove suds?" and the user terminal 500 includes an interface that allows you to select “yes” or “no”.

Various guide information to prevent adding a large amount of detergent is displayed, and the user terminal 500 responds such as confirm, agree, disagree, or do not confirm, and such response information is transmitted to the server 300. (S37). Then, the server 300 transmits response information to the washing machine 100 (S38).

Afterwards, the washing machine sets the foam removal logic selection method according to the response information (S39). Additionally, if the response information activates automatic detergent injection, excessive detergent injection can be prevented by activating automatic detergent injection when setting a subsequent washing course.

Let’s look at S39 in more detail.

The washing machine communication unit 160 receives response information about the task information from the server 300 (S38). Here, if the response information agrees with the input of the fabric softener foam removal logic, the controller 150 stores the response information in the memory. And the controller 150 increases the possibility of selecting the second bubble removal logic among the first bubble removal logic or the second bubble removal logic. Since the user has agreed, in order to increase the efficiency of future foam removal, the controller 150 selects the second foam removal logic by adding a fabric softener when removing foam.

Meanwhile, let's look at the opposite case.

The washing machine communication unit 160 receives response information about the task information from the server 300 (S38). Here, if the response information opposes the input of the fabric softener foam removal logic, the controller 150 stores the response information in the memory.

Then, during the subsequent washing process, the controller 150 selects the first foam removal logic or the second foam removal logic. As a result, fabric softener is not added during the foam removal process.

Figure 7 is a diagram showing guide information displayed on the user terminal 500a to confirm that fabric softener has been added to remove foam and whether the same method will be applied in the future.

When the user selects “Yes” displayed on the user terminal 500a of FIG. 7, response information is transmitted to the server 300 and in turn to the washing machine 100. And when the controller 150 of the washing machine 100 detects foam later, it increases the possibility of selecting a second foam removal logic that removes foam using a fabric softener.

Meanwhile, when the user selects “No” displayed on the user terminal 500a of FIG. 7, response information is transmitted to the server 300 and in turn to the washing machine 100. When the controller 150 of the washing machine 100 detects foam, it selects the first foam removal logic that removes foam using only water supply and drainage without adding fabric softener.

Figure 8 is a diagram showing guide information displayed on the user terminal 500b to confirm that fabric softener has been added to remove foam and whether to activate automatic detergent injection so that detergent is properly added to prevent foam generation.

When the user selects “Yes” displayed on the user terminal 500b of FIG. 8, response information is transmitted to the server 300 and in turn to the washing machine 100. Then, the controller 150 of the washing machine 100 activates the automatic detergent injection function to inject detergent according to the washing course and the amount of laundry.

Meanwhile, when the user selects “No” displayed on the user terminal 500b of FIG. 8, response information is transmitted to the server 300 and then transmitted to the washing machine 100. And when the controller 150 of the washing machine 100 detects foam without activating the automatic detergent injection function, it performs the same foam removal logic.

When applying the above-described embodiments, if a lot of foam is generated due to excessive detergent in the washing machine during the washing, rinsing, and dehydration process, the foam is quickly removed to prevent a delay in entering the dehydration due to the foam and to improve the rinsing performance of the washing machine user. dissatisfaction can be eliminated.

Conventionally, if there was a lot of foam, the foam was removed by draining the water and foam in the washing machine, then supplying clean water and draining the water. This was a method of physically lowering the concentration of detergent surfactant inside the washing machine, thereby lowering the probability of foam generation or adverse effects (delayed dehydration entry, poor rinsing performance) caused by foam.

Embodiments of the present specification enable foam to be chemically removed by adding a fabric softener. In addition, when foam is generated, the washing machine's controller 150 determines whether to add fabric softener based on the washing course, washing time, foam amount, etc. to effectively remove foam.

In particular, in order to save time, electrical energy, and water volume, which may increase due to repeated water supply and drainage, the controller 150 of the washing machine provides fiber for foam removal according to the amount of foam, the washing course, or the characteristics of the laundry. You can decide whether or not to add softener. And if you remove foam by adding fabric softener, you can save time, water, and electrical energy.

In addition, the washing machine 100 provides information about excessive injection of detergent to the user terminal 500 via the server 300 or displays notification information about the application of foam removal logic when the user approaches the washing machine 100. This allows the user to add detergent in an appropriate amount.

If the controller 150 of the washing machine according to the embodiment of the present specification determines that there is a lot of foam during washing, rinsing, and dehydration, it drains the foam and detergent and then adds fabric softener without the dehydration process. Additionally, the controller 150 may perform foam removal logic in the dehydration entry section and the first rinsing section after washing, where the detergent concentration is high and problems occur due to foam.

The controller 150 can control the function module 190 to remove foam by adding fabric softener when water is supplied, circulate it for a certain period of time through a circulation pump, and allow it to sufficiently diffuse before proceeding with the drainage process. When fabric softener is supplied, the circulation pump must be operated to sufficiently react with the fabric softener and foam. And after removing the foam, the controller 150 proceeds with dehydration and the next rinsing process.

In the case of a washing machine equipped with an automatic detergent dispenser, the controller 150 can remove foam by applying the process of FIG. 3 to the dehydration section after washing, where a lot of foam is generated. In the case of a washing machine without an automatic detergent dispenser, the controller 150 can remove foam by applying the process of FIG. 3 when rinsing water supply.

When applying the embodiment of the present invention, by adding a fabric softener to remove foam, a large amount of water and time are saved compared to lowering the surfactant concentration in the washing machine and clothes through the existing drain-water supply-drain process. It can be reduced.

Hereinafter, we will look at a method and device for providing guide information on the injection of detergent according to the foam detected during the washing machine washing process.

The washing machine 100 communicates with the server 300. The washing machine 100 can transmit information (start time, end time, performance function, tax input information, etc.) according to each operation to the server 300, and this information is stored in the server 300 (S101) .

Meanwhile, if there is information that needs to be reported to the user during the washing process, the washing machine 100 stores the information within the washing machine 100 and notifies the user later, or informs the user after the washing is completed or when the door of the washing machine is opened. You can announce the saved information (S102).

And the server 300 may transmit the information provided by the washing machine 100 to the user terminal 500 as a push message (S103). At this time, the user terminal 500 is a terminal owned by a user who owns or uses the washing machine 100, and the user terminal 500 can be linked to the washing machine 100 via the server 300.

In the configuration of FIG. 9, the washing machine 100 can detect foam caused by a taxing agent during the washing process and provide guide information on adding detergent to the user. To this end, the washing machine 100 may proceed with a process of detecting foam caused by the input of taxing agent.

Figures 10 and 11 are diagrams showing the process of detecting foam during operation of a washing machine according to an embodiment of the present invention. Refer to Figure 13 for the detailed structure of the washing machine. The washing machine detects foam during operation, performs a function to remove it, and transmits history information about it to the server 300.

Referring to the drawing of FIG. 10, the washing machine 100 detects foam during the washing/rinsing/spin-drying process (S111). As an example of the sensed result, a method for the washing machine 100 to detect foam is to count the number of occurrences of dehydration delay due to foam during the operation process. Or, in another embodiment, the washing machine 100 may determine whether foam is generated according to a change in the height of water during the process of adding or draining water. In another embodiment, the washing machine 100 may detect foam by determining that friction due to foam has increased when the current increases while the washing machine is rotating.

After detecting foam, the washing machine 100 performs a foam removal function (S112). Then, the washing machine 100 determines whether the foam has been removed using the various methods described above (S113). The washing machine 100 may repeat steps S112 and S113 until the foam is removed.

When foam removal is confirmed, the washing machine 100 stores history information related to foam removal (S114) and transmits the history information to the server 300 (S117). The server 300 that has received the history information may generate guide information in response to the history information.

The controller (150 in FIG. 13) of the washing machine 100 monitors the number of occurrences of spin-drying delay, water level value, and History information can be generated including one or more of the current rise value for the rotation of the washing machine or the time taken to operate the foam removal function.

Referring to the drawing of FIG. 11, the washing machine 100 transmits history information to the server 300 (S117). Then, the server 300 generates guide information based on the history information (S121). History information includes information about the number of times or time a foam removal operation was performed, or the amount of water introduced for foam removal. History information also includes information about the weight of laundry and the washing/rinsing/spin cycle. Alternatively, the history information may include photos, videos, etc. taken by the washing machine 100 of the inside of the washing machine.

The server 300 generates guide information including information about appropriate detergent input based on history information. In one embodiment of the present invention, the guide information may include content suggesting a reduction in detergent compared to the previous amount of detergent that caused foam removal. Alternatively, the guide information may include content suggesting an increase in laundry load compared to the previous amount of detergent that caused foam removal. Alternatively, the guide information may include information on past detergent input amounts and information on whether foam removal occurs according to each detergent input amount.

Alternatively, the guide information may include a message informing to reduce detergent input. Additionally, the guide information may include images or videos included in the history information.

The server 300 transmits guide information to the user terminal 500 (S122). The user terminal 500 may display guide information on the screen of the user terminal. Alternatively, the guide information may be delivered to the user terminal 500 as a push message, and the user may check the guide information by touching the push message on the user terminal 500.

The user terminal 500 transmits a result of whether guide information is displayed to the server 300 (S124). In step S124, guide information may be transmitted to the washing machine 100 together. Then, the server 300 transmits the result displaying the guide information to the washing machine 100 (S125). If the user terminal 500 does not confirm or does not display the guide information, the interface of the washing machine 100 may display the guide information according to the display result (S126).

10 and 11 are connected to the detailed configuration of the washing machine 100 in FIG. 13 as follows.

The controller 150 of the washing machine 100 checks foam generation during the operation of the function module of the washing machine 100 and operates the foam removal function of the function module 190 (S111 to S113). The controller 150 generates history information about the operation of the bubble removal function and stores it in memory (S114). The controller 150 controls the washing machine communication unit 160 of the washing machine 100 and transmits the history information to the server 300 (S117).

Figure 12 is a diagram showing a process in which a washing machine generates and outputs guide information according to an embodiment of the present invention. S111 to S114 of FIG. 12 refer to the description of the processes of S111 to S114 of FIG. 10 above. After the washing machine 100 stores the foam removal history information (S114), the washing machine generates guide information and determines an output method (S118). This is so that the washing machine 100 provides guide information to the user through the interface.

Then, when the user approaches the washing machine 100, it outputs guide information to the interface (S119). The determination of the user's access is made by opening the cover constituting the function module (190 in FIG. 13) of the washing machine 100, or by controlling the interface 170 of the washing machine 100 by the user or by using a device installed in the washing machine 100. This includes cases where the human body detection sensor detects the user's approach. To this end, the washing machine 100 may further include a separate human body detection sensor.

The interface 170 of the washing machine 100 may output a message including guide information or a tax input warning message. Depending on the embodiment, the guide information may include a tax input warning message.

For example, the washing machine 100 may output guide information such as “A lot of foam was generated, so please reduce the amount of detergent used during the next wash” through a speaker. Alternatively, the guide information can be visually output on the touch screen or LCD window of the washing machine 100.

When applying the embodiments of FIGS. 10 to 12, while the washing machine 100 is washing, rinsing, and dehydrating, foam is detected due to the detergent and the number of times a removal motion to remove the foam occurs or the amount of water added, It is possible to detect the amount of taxation according to the time when the removal motion was performed, and provide a guide to prevent taxation to the user.

As the amount of detergent increases, the number of times the foam removal motion occurs after foam detection occurs more frequently. Therefore, the washing machine 100 divides the number of foam removal motion occurrences, the amount of water injected, the time the removal motion lasts, etc. into sections and predicts the amount of detergent for each section. In addition, the washing machine 100 can inform the user about the input of taxation to reduce the amount of tax through an app on the user terminal 500 and guide the user on the amount of tax to be reduced.

The server 300, which has received foam removal history information due to taxation from the washing machine 100, may provide guide information to the user terminal 500. And the app of the user terminal 500 may transmit back to the server 300 whether the user has confirmed the guide information (whether the guide information is displayed or not). If the guide information is not displayed on the user terminal 500 or the user does not check the guide information, the server 300 may instruct the washing machine 100 to output the guide information.

In addition, in the case of a washing machine with an automatic detergent device, the guide information includes whether the user agrees to automatic detergent injection, and when the customer agrees, the amount of detergent can be reduced to an appropriate amount according to the step.

For example, in FIG. 11 , the guide information transmitted to the user terminal 500 may include an interface for responding “yes” or “no” to automatic detergent injection. Also, if the guide information display result includes information that the user has set “Yes” for automatic detergent input in S123 and S124, the server 300 sends instruction information for activating automatic detergent input to the washing machine 100 as the guide information. It is transmitted by including it in the display result (S125). And the washing machine 100 can set automatic detergent injection in process S126.

The washing machine 100 includes a function module 190 that performs washing, rinsing, and spin-drying functions, a controller 150, a washing machine communication unit 160, an interface 170, and a memory 180. The functional module 190 includes a washing tub, a motor that controls the washing tub, and auxiliary devices that supply and drain water.

The controller 150 checks the generation of bubbles during the operation of the function module 190, operates the bubble removal function of the function module 190, and generates history information about the operation of the bubble removal function and stores it in the memory 180. .

The washing machine communication unit 160 transmits history information to the server 300 under the control of the controller 150.

As seen in S125 of FIG. 11, the washing machine communication unit 160 may receive a guide information display result from the server 300. In addition, if the received guide information display result indicates not to display the guide information, the controller 150 can control the interface 170 of the washing machine 100 to output a message containing guide information or a tax input warning message. There is (see S126 in FIG. 11). The output method includes one or more of the output of an auditory message (voice) or the output of a visual message (text, graphics, etc.).

Additionally, the guide information display result may further include an instruction to set automatic detergent injection to the washing machine 100, and in this case, the controller 150 may activate automatic detergent injection to the washing machine 100. Accordingly, the function module 190 can later automatically add detergent according to the amount of laundry or washing method.

The server communication unit 360 of the server 300 receives history information about the operation of the foam removal function from the washing machine 100 (S117 in FIG. 11). Then, the server controller 350 of the server 300 generates guide information using the history information (S121 in FIG. 11). Thereafter, the server controller 350 transmits the guide information to the user terminal 500 linked to the washing machine 100 (S122). To this end, the database 380 of the server 300 may store identification information about the user terminal 500 corresponding to the washing machine 100 or identification information about the application installed on the user terminal 500.

Afterwards, the server communication unit 360 receives the guide information display result from the user terminal 500 (S124 in FIG. 11).

In one embodiment, the guide information display result may further include instructions for setting automatic detergent injection for the washing machine 100.

Additionally, the server communication unit 360 may transmit the guide information display result received from the user terminal 500 to the washing machine 100 (S125 in FIG. 11). Thereafter, the washing machine 100 may separately output a tax input warning message, re-output the guide information, or set automatic detergent input according to the guide information display result.

When applying the above-described embodiment, when a washing machine using a drum washing machine as an example detects foam due to a taxing agent during the process of washing, rinsing, and dehydrating, the washing machine performs a removal motion to remove the foam. And, depending on the number of occurrences of the foam removal motion, the occurrence time, or the amount of water used to remove foam, the washing machine 100 detects the amount of tax and notifies the customer. Since the amount of detergent and the number of times of foam removal motion (water supply/drain once) are proportional, the controller 150 of the washing machine 100 notifies the server 300 when the foam removal motion (operation of the foam removal function) occurs more than a certain number of times. Notify. Additionally, the server 300 provides guide information (notification message) recommending to the customer to reduce the amount of detergent input through an app (or a linked user terminal) connected to the washing machine. The user terminal 500 may display a notification message (guide information).

Figure 15 is a diagram showing the process of detecting the tax amount according to an embodiment of the present invention. The function module 190 of the washing machine 100 performs a foam removal motion under the control of the controller 150 (S131). Then, the controller 150 of the washing machine 100 records factors corresponding to various physical and chemical characteristics before and after determining the foam removal motion or foam removal (S132).

For example, the controller 150 may record factors calculated before and after performing a bubble removal motion. One example of the factors is the number of occurrences of the foam removal motion, the occurrence time, or the amount of water used for foam removal. Alternatively, the factor according to an embodiment of the present invention includes the RPM (Revolutions Per Minute, Rotations Per Minute) value of the motor or the increase in RPM related to the rotation of the washing machine when dehydration is delayed due to foam. The part about the increase in RPM was previously presented in Figure 4.

Thereafter, the controller 150 calculates the input detergent amount and the reference detergent amount using the above-mentioned factors (S133, S134).

To calculate the amount of detergent introduced, the controller 150 can use information such as the weight or volume of the laundry, the amount and temperature of water added during the washing or rinsing process, and the strength of washing/rinsing power during the washing or rinsing course. During this calculation process, the controller 150 can calculate the tax amount. And the controller 150 can also calculate the standard amount of detergent (the amount of detergent that needs to be appropriately added) by comparing it with this.

Thereafter, the controller 150 may control the washing machine communication unit 160 to transmit calculated detergent amount (taxable amount and standard detergent amount) information to the server 300 (S135). Alternatively, the controller 150 stores the calculated information and later, when the user approaches the washing machine 100, the interface 170 outputs the information and guides the amount of detergent input (S135).

As previously seen in FIG. 4, RPM can be included in the process of determining foam generation according to an embodiment of the present invention. The washing machine constituting the functional module 190 can be rotated by a motor. At this time, we saw earlier that when a large amount of foam is generated, the RPM of the motor that rotates the washing machine increases and dehydration is delayed.

That is, the controller 150 can determine whether the dehydration is delayed due to foam as shown in the graph of FIG. 4 by determining whether the RPM increases. For a description of P1, P2, and P3, refer to FIG. 4.

The controller 150 may include RPM in the process of determining whether bubbles are generated or calculating factors related to bubble removal.

When applying the above-described embodiment, if foam is generated due to a detergent while the washing machine 100 is washing, rinsing, or dehydrating, the washing machine may detect the foam generation and perform a removal motion to remove the foam. Then, the washing machine 100 divides the number (or time) of the removal motion into sections according to the number and time at which the foam removal motion occurs, detects the amount of tax by number (or time), and then connects the user terminal during washing or after the end of washing. You can guide customers to reduce their tax through the app installed at (500). Additionally, during this process, the interface 170 of the washing machine 100 may output this information in a visual or auditory manner.

After washing is completed, the interface 170 of the washing machine 100, which has an LED or LCD window as an example, notifies that taxation has been added and provides a notification to guide the user in reducing the tax. In this process, the washing machine 100 can guide the standard amount of detergent in connection with the amount of laundry, the characteristics of the laundry, and the washing course.

If a lot of foam is generated from the detergent in the washing machine during the washing, rinsing, and dehydration process, the foam may cause a delay in the entry of the dehydration process, increasing the washing time and causing problems with the rinsing performance of the washing machine user.

Therefore, when applying the embodiment of the present invention, information related to foam generation is provided to the user in real time as soon as the washing is completed, or when the user approaches the washing machine, so that the user can receive tax information at an appropriate time. .

The washing machine 100 can use RPM, etc. to check whether there are any problems with the spin-drying operation and repeat the foam removal motion until the passing criteria are satisfied. The washing machine 100 can calculate the amount of detergent introduced using the number or time of repetition of the foam removal motion, increase in RPM, amount of water introduced, etc.

The number or time of repeating the foam removal motion can be divided into sections and stored in the memory 180, and the washing machine 100 can use this information to determine the amount of foam or excessive amount of detergent by stage. . That is, the washing machine 100 can calculate the excessive amount of detergent and the standard amount of detergent by matching the detergent amount for each section.

For example, the washing machine 100 may determine that 5% of the amount of detergent was excessively added per foam removal motion. Additionally, the washing machine 100 can calculate the over-injected amount of detergent per time up to the first three times of the foam removal motion as 5%, and from the fourth time of the foam removal motion onwards, the amount of detergent over-injected per time can be calculated as 3%.

Of course, on the contrary, from the 4th time of the foam removal motion, the amount of detergent overused per time can be calculated as 7%. Of course, the washing machine 100 can respond to the amount of foam per foam removal motion and later calculate the amount of tax for contamination based on the amount of foam.

The washing machine 100 can guide the user with information about the classified foam level or excessive amount of detergent and the standard amount of detergent suitable for the corresponding wash. In one embodiment, the washing machine 100 may guide the user to reduce the amount of detergent. The guiding information includes information about the amount of detergent to be reduced or the appropriate amount of detergent. In the case of a washing machine equipped with an automatic detergent system, it is possible to check whether the customer agrees to a reduction in the amount of detergent and reduce the amount of detergent according to the user's consent and settings.

In the process of determining taxation, the controller 150 of the washing machine 100 may reflect various variables. For example, the controller 150 may set different judgment conditions for reduced detergent according to the washing load and guide the detergent amount appropriately for the washing load. Additionally, the controller 150 can guide the amount of detergent to suit the characteristics of the laundry by setting different judgment conditions for reduced detergent according to the type of washing load.

Additionally, the controller 150 may vary detergent judgment conditions depending on water temperature and season-specific characteristics. Additionally, in the case of a washing machine capable of detecting the degree of contamination, detergent judgment conditions can be set differently depending on the degree of contamination.

In this way, by the washing machine 100 or the user terminal 500 providing guide information about the amount of detergent, the user can check the level of the amount of detergent added and relieve anxiety about rinsing the washing machine. Additionally, the washing machine 100 may provide guide information so that the user can save wasted detergent. In addition, time delays can be prevented by preventing dehydration delays caused by foam generation due to taxation.

Users can also check the level of detergent they have put in, and can solve poor rinsing performance due to foam.

Figure 16 is a diagram showing guide information displayed on a user terminal according to an embodiment of the present invention. The user terminal 500 receives guide information about the end of laundry and occurrence of taxation from the server 300 and outputs it as shown in FIG. 16.

When the content related to tax input displayed on the screen of the user terminal 500 and the confirmation button (like button) are selected, the user terminal 500 may transmit the guide information display result to the server 300. Additionally, if the user does not respond separately to the tax system notification or selects the “Next” button, the server 300 may change the notification period for the tax system.

When applying the embodiment of the present invention, when foam is detected more than a certain number of times, the situation where foam is generated is provided in real time through the app on the user terminal 500, and a response (automatic detergent injection) is possible. do.

Therefore, while the washing is in progress, the user can check the foam generation due to the tax agent in real time and thus can take action regarding the tax agent more effectively. In addition, the server 300 increases or decreases the number of tax system notifications or the standard amount of tax system judgment according to the display result of the guide information on the user terminal 500 as in step S124 of FIG. 11 to appropriately guide the user as to whether or not there is a tax system. can do.

Even though all the components constituting the embodiments of the present invention are described as being combined or operated in combination, the present invention is not necessarily limited to these embodiments, and within the scope of the purpose of the present invention, all components are combined into one or more. It can also be operated by selectively combining. In addition, although all of the components may be implemented as a single independent hardware, a program module in which some or all of the components are selectively combined to perform some or all of the functions of one or more pieces of hardware. It may also be implemented as a computer program having. The codes and code segments that make up the computer program can be easily deduced by a person skilled in the art of the present invention. Such a computer program can be stored in a computer-readable storage medium and read and executed by a computer, thereby implementing embodiments of the present invention. Storage media for computer programs include magnetic recording media, optical recording media, and storage media including semiconductor recording elements. Additionally, the computer program implementing the embodiment of the present invention includes a program module that is transmitted in real time through an external device.

Although the above description focuses on the embodiments of the present invention, various changes and modifications can be made at the level of those skilled in the art. Accordingly, it will be understood that such changes and modifications are included within the scope of the present invention as long as they do not depart from the scope of the present invention.

-Explanation of symbols-

100: washing machine 300: server

500: user terminal

Claims

It includes a fabric softener input module and performs washing, rinsing, and dehydration functions, and executes the first foam removal logic through water supply and drainage and the second foam removal logic through water supply, drainage, and fabric softener input from the fabric softener input module. Function module that does; and

Confirm the generation of bubbles during the operation of the function module, select the first bubble removal logic or the second bubble removal logic using the amount of bubbles generated and the course information set in the function module, and select the first bubble removal logic and the selected bubble removal logic. A washing machine comprising a controller that controls the function module according to the above.
According to paragraph 1,

The controller removes the second foam when the amount of foam is greater than the standard value or when the first end time when performing the first foam removal logic according to the set course information is later than the expected second end time of the course information. Washing machine, selecting removal logic.
According to paragraph 1,

The controller selects the second foam removal logic, and when the function module performs water supply, the controller controls the fabric softener input module to inject the fabric softener and operates the circulation pump of the function module.
According to paragraph 1,

A washing machine further comprising a washing machine communication unit that transmits operation information related to execution of the foam removal logic to a server.
According to paragraph 4,

The washing machine communication unit receives response information to the task information from the server, and if the response information agrees to input the foam removal logic of the fabric softener, the controller stores the response information in memory,

The controller is a washing machine that increases the possibility of selecting the second foam removal logic among the first foam removal logic or the second foam removal logic.
According to clause 4,

The washing machine communication unit receives response information to the job information from the server, and when the response information opposes the input of the foam removal logic of the fabric softener, the controller stores the response information in memory,

After the storage, the controller selects the first foam removal logic among the first foam removal logic or the second foam removal logic.
According to paragraph 4,

The work information includes one or more of the number of occurrences of dehydration delay that occurred during the operation of the foam removal function of the function module, the water level value, the current increase value for the rotation of the washing machine, or the time taken to operate the foam removal function. , washing machine.
A function module of the washing machine performing a set course;

A controller of the washing machine confirming foam generation during the operation of the function module and selecting a first foam removal logic or a second foam removal logic using the amount of foam generated and course information set in the function module;

When the first bubble removal logic is selected, the function module includes a first bubble removal step of performing bubble removal through water supply and drainage; and

A method of reducing foam by removing foam by adding a fabric softener, comprising a second foam removal step of removing foam through water supply and drainage and adding the fabric softener when the second foam removal logic is selected.
According to clause 8,

The selecting step is performed when the amount of foam is greater than the reference value or the first end time when the controller performs the first foam removal logic according to the set course information is later than the expected second end time of the course information. In this case, a method of reducing foam by removing foam by adding a fabric softener, including the step of selecting the second foam removal logic.
According to clause 8,

The second foam removal step is

When the function module performs water supply, the controller controls the fabric softener input module of the function module to inject the fabric softener and operates the circulation pump of the function module. How to reduce foam by removing it.
According to clause 8,

A method of reducing foam by removing foam by adding a fabric softener, further comprising the step of the washing machine communication unit of the washing machine transmitting operation information related to execution of the foam removal logic to a server.
According to clause 11,

The washing machine communication unit receiving response information to the job information from the server;

If the response information agrees to the input of the foam removal logic of the fabric softener, the controller stores the response information in memory and then selects the second foam removal logic among the first foam removal logic or the second foam removal logic. A method of reducing foam by removing foam by adding a fabric softener, which further includes the step of increasing the possibility.
According to clause 11,

The washing machine communication unit receiving response information to the job information from the server;

If the response information is opposed to the input of the fabric softener into the foam removal logic, the controller stores the response information in the memory, and then the controller always performs the first foam removal logic among the first foam removal logic or the second foam removal logic. A method of reducing foam by removing foam by adding fabric softener, which selects the removal logic.
According to clause 11,

The work information includes one or more of the number of occurrences of dehydration delay that occurred during the operation of the foam removal function of the function module, the water level value, the current increase value for the rotation of the washing machine, or the time taken to operate the foam removal function. , A method of reducing foam by adding fabric softener to remove foam.
A functional module that performs washing, rinsing, and spin-drying functions;

A controller that checks the generation of bubbles during the operation of the function module, operates a bubble removal function of the function module, and generates history information about the operation of the bubble removal function and stores it in a memory; and

A washing machine that reduces foam by providing guide information about laundry detergent, including a washing machine communication unit that transmits the history information to a server under control of the controller.
According to clause 15,

A washing machine that reduces foam by providing guide information about laundry detergent, wherein the washing machine communication unit receives guide information display results from the server.
According to clause 16,

When the guide information display result indicates non-display of the guide information, the controller controls the interface of the washing machine to output guide information about laundry detergent, which outputs a message containing the guide information or a taxation agent input warning message. A washing machine that reduces foam.
According to clause 16,

The guide information display result further includes instructions for setting automatic detergent injection for the washing machine,

A washing machine wherein the controller activates automatic detergent injection of the washing machine and provides guide information about laundry detergent to reduce foam.
According to clause 15,

The history information includes one or more of the number of occurrences of dehydration delay that occurred during the operation of the foam removal function of the function module, the water level value, the current increase value for the rotation of the washing machine, or the time taken to operate the foam removal function. , a washing machine that provides guide information on laundry detergents to reduce foaming.
According to clause 15,

The controller controls the interface of the washing machine when a user approaches the washing machine and outputs a tax introduction warning message. A washing machine that reduces foam by providing guide information about laundry detergent.
A step of the washing machine controller confirming foam generation during the operation of the functional module of the washing machine and operating the foam removal function of the functional module;

generating, by the controller, history information about the operation of the bubble removal function and storing it in a memory; and

A method of reducing foam by providing guide information about laundry detergent, including the step of the controller controlling the washing machine communication unit of the washing machine to transmit the history information to the server.
According to clause 21,

A method of reducing foam by providing guide information about laundry detergent, further comprising the step of the washing machine communication unit receiving a guide information display result from the server.
According to clause 22,

When the guide information display result indicates non-display of the guide information, the controller controls the interface of the washing machine to output a message including the guide information or a taxation agent input warning message. Laundry detergent further comprising: Provides guide information on how to reduce foam.
According to clause 22,

The guide information display result further includes instructions for setting automatic detergent injection for the washing machine,

A method of reducing foam by providing guide information about laundry detergent, wherein the controller further includes activating automatic detergent injection of the washing machine.
According to clause 21,

The history information includes one or more of the number of occurrences of dehydration delay that occurred during the operation of the foam removal function of the function module, the water level value, the current increase value for the rotation of the washing machine, or the time taken to operate the foam removal function. , a guide to laundry detergents to reduce foaming.
According to clause 21,

The method further includes the step of the controller controlling an interface of the washing machine to output a warning message for introducing a tax agent when a user approaches the washing machine.
A server communication unit of the server receiving history information about the operation of the foam removal function from the washing machine;

A server controller of the server generating guide information using the history information; and

A method of reducing foam by providing guide information about laundry detergent, comprising the step of the server controller of the server transmitting the guide information to a user terminal linked to the washing machine.
According to clause 27,

A method of reducing foam by providing guide information about laundry detergent, further comprising the step of the server communication unit receiving the guide information display result from the user terminal.
According to clause 28,

A method of reducing foam by providing guide information about laundry detergent, wherein the guide information display result further includes instructions for setting automatic detergent injection for the washing machine.
According to clause 28,

A method of reducing foam by providing guide information for laundry detergent, further comprising the step of the server communication unit transmitting the received guide information display result to the washing machine.