A laundry device detergent dispensing method and control device

Abstract

The application discloses a laundry device detergent feeding method and a control device, the method comprising: after starting a washing process, initially feeding one or more component detergents into a washing cabin in a certain amount; obtaining the elution amount or elution rate of various stains in washing water according to a preset unit time interval; comparing the obtained elution amount or elution rate with a pre-stored storage parameter to determine whether at least one component detergent needs to be continuously fed; adding the component detergent into the washing cabin according to the feeding amount and feeding mode of the component detergent, continuously detecting the elution amount, and adjusting the feeding mode of the component detergent. The application can realize intelligent feeding of the detergent amount according to the actual dirtiness of clothes, reasonably control the addition of detergent components according to different stain components, more accurately wash stains, and improve the washing and rinsing effects.

Description

Technical Field

[0001] This invention belongs to the field of washing machine technology, specifically relating to a detergent dispensing method and control device for a washing machine. Background Technology

[0002] The removal of dirt from clothing is a gradual process, and the speed of removal depends on the type of dirt and the detergent used. Generally speaking, grease stains need to be gradually peeled off from the surface of clothing with the help of cationic / anionic / nonionic surfactants; protein stains need to be gradually hydrolyzed and removed by proteases; water-soluble compounds dissolve rapidly in water; and solid particles need to be gradually removed from the clothing fibers through physical shaking and agitation.

[0003] Currently, most existing technologies determine the amount of detergent to add or whether it needs to be added by weighing or predicting the material of the clothes. This involves adding detergent all at once or adding it multiple times, without considering how to wash the clothes step by step to ensure that the dirt is completely removed. This results in problems such as dirt not being washed off and detergent residue, and it also affects the rinsing effect of the clothes. Summary of the Invention

[0004] Technical Objective: To address the aforementioned technical problems, this invention proposes a detergent dispensing method and control device for a laundry apparatus, which enables precise detergent dispensing during the washing process, improves detergent utilization efficiency, effectively controls detergent residue during rinsing, and enhances washing and rinsing results.

[0005] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A method for automatically dispensing detergent in a laundry device, characterized by comprising the following steps:

[0007] (1) After the washing process is started, one or more detergents are added to the washing chamber in a fixed amount for the first time. The detergents are used to remove the preset type of dirt and automatically add water according to the program conditions to dilute, dissolve and disperse the detergent.

[0008] (2) Obtain the washing amount or washing rate of various dirt in the washing water according to the preset unit time interval. The washing amount represents the total mass of the corresponding type of dirt that leaves the surface of the clothes and enters the washing water in the first unit time after a detergent component is added. The washing rate represents the change in the washing amount of the corresponding type of dirt in the second unit time after a detergent component is added.

[0009] (3) comparing the obtained elution amount or elution rate with the pre-stored storage parameters to determine whether at least one component detergent needs to continue to be added, if yes, formulating the adding amount and adding mode of the corresponding component detergent, and going to the next step, if no, stopping the adding of the component detergent, and washing according to the program conditions until the washing process is completed;

[0010] (4) adding the component detergent into the washing cabin according to the formulated adding amount and adding mode of the component detergent, and returning to step (2).

[0011] Preferably, the pre-stored storage parameters include the elution amount limit condition 1, the elution amount critical value and the elution amount limit condition 2, or the elution rate limit condition 1, the elution rate critical value and the elution rate limit condition 2 determined by experiments, specifically:

[0012] If the elution amount of the dirt in the washing water in the first unit time reaches the saturated elution amount after the quantitative component detergent is added, the saturated elution amount is taken as the elution limit condition 1, and the change of the elution amount in the second unit time is taken as the elution rate limit condition 1;

[0013] If the elution amount of the dirt in the washing water in the first unit time is less than the saturated elution amount after the quantitative component detergent is added, if the washing time is prolonged for a long enough time, the elution amount of the corresponding dirt in the washing water can reach the saturated elution amount, the elution amount of the dirt in the washing water in the first unit time is taken as the elution amount critical value, and the change of the elution amount in the second unit time is taken as the elution rate critical value;

[0014] If the consumption amount of the component detergent in the first unit time is 0 after the quantitative component detergent is added, the elution amount of the dirt in the washing water in the first unit time is taken as the elution amount limit condition 2, and the change of the elution amount in the second unit time is taken as the elution rate limit condition 2.

[0015] Preferably, one or more elution amount reference values are divided between the elution amount critical value and the elution amount limit condition 1, and one or more elution rate reference values are divided between the elution rate critical value and the elution rate limit condition 1.

[0016] Preferably, in the step (3), the obtained elution amount is compared with the pre-stored elution amount limit condition 1, the elution amount critical value and the elution amount limit condition 2 to determine whether at least one component detergent needs to continue to be added, specifically including:

[0017] If the elution amount critical value The obtained elution amount The elution amount limit condition 1, it is determined that the current component detergent needs to continue to be added, and the adding amount of the component detergent in the next time is calculated according to the obtained elution amount of the dirt this time;

[0018] If the elution amount reference value 1 The obtained elution amount If the elution amount critical value, it is determined that the current ingredient detergent does not need to continue to be put in.

[0019] Preferably, in the step (3), the elution amount reference value includes elution amount reference value 1, elution amount reference value 2 and elution amount reference value 3.

[0020] The next put-in amount of the ingredient detergent is calculated according to the obtained elution amount, specifically including:

[0021] If the elution amount reference value 1 The obtained elution amount If the elution amount limit condition 1, it is determined that the next put-in amount of the ingredient detergent is A;

[0022] If the elution amount reference value 2 The obtained elution amount If the elution amount reference value 1, it is determined that the next put-in amount of the ingredient detergent is B;

[0023] If the elution amount reference value 3 The obtained elution amount If the elution amount reference value 2, it is determined that the next put-in amount of the ingredient detergent is C;

[0024] If the elution amount critical value The obtained elution amount If the elution amount reference value 3, it is determined that the next put-in amount of the ingredient detergent is D;

[0025] Wherein, A B C D.

[0026] Preferably, in the step (3), the obtained elution rate is compared with the pre-stored elution rate limit condition 1, elution rate critical value and elution rate limit condition 2, to determine whether at least one ingredient detergent needs to continue to be put in, specifically including:

[0027] If the elution rate critical value The obtained elution rate If the elution rate limit condition 1, it is determined that the current ingredient detergent needs to continue to be put in, and the next put-in amount of the ingredient detergent is calculated according to the obtained elution rate;

[0028] If the elution rate limit condition 2 The obtained elution rate If the elution rate critical value, it is determined that the current ingredient detergent does not need to continue to be put in.

[0029] Preferably, in the step (3), the elution rate reference value comprises an elution rate reference value 1, an elution rate reference value 2 and an elution rate reference value 3; the next dosage of the component detergent is calculated according to the obtained elution rate, specifically comprising:

[0030] If the elution rate reference value 1 The obtained elution rate The elution rate limit condition 1, the next dosage of the component detergent is determined as ;

[0031] If the elution rate reference value 2 The obtained elution rate The elution rate reference value 1, the next dosage of the component detergent is determined as ;

[0032] If the elution rate reference value 3 The obtained elution rate The elution rate reference value 2, the next dosage of the component detergent is determined as ;

[0033] If the elution rate critical value The obtained elution rate The elution rate reference value 3, the next dosage of the component detergent is determined as ;

[0034] Wherein, .

[0035] A laundry device detergent dispensing control device, characterized in that it comprises:

[0036] A detergent storage module for storing different component detergents according to classification before starting laundry.

[0037] A detergent dispensing module for obtaining detergents from the detergent storage module and dispensing one or more component detergents into the washing chamber according to the instructions sent by the laundry device control module after starting the washing process, each component detergent being used to remove a preset type of dirt;

[0038] A dirt index acquisition module for acquiring the elution amount or elution rate of various dirt in the washing water according to a preset unit time interval, the elution amount representing the total mass of the corresponding type of dirt that has separated from the surface of the clothes and entered the washing water within a first unit time after the dispensing of a component detergent, and the elution rate representing the change in the elution amount of the corresponding type of dirt within a second unit time after the dispensing of a component detergent, and the acquired dirt index is returned to the laundry device control module;

[0039] The laundry device control module is used for comparing the obtained elution amount or elution rate with the pre-stored storage parameters, judging whether at least one component detergent needs to continue to be put, if yes, formulating the putting amount and putting mode of the corresponding component detergent, entering the next step, and if no, stopping the putting of the component detergent, and performing washing according to the program conditions until the washing process ends.

[0040] Preferably, the dirtiness index acquisition module comprises a water quality monitoring module.

[0041] The water quality monitoring module is used for acquiring the elution amount of various dirtiness in the washing water according to a preset unit time interval, and comprises one or more of a full-spectrum detection module, a conductivity or TDS detection module, an image recognition detection module, a pH detection module and a refractive index detection module.

[0042] Preferably, the device further comprises a temperature adjusting device for adjusting the temperature of the washing water in the laundry device.

[0043] Beneficial effects: due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0044] The present application intelligently puts the amount of detergent according to the actual dirtiness degree of clothes, reasonably controls the addition of detergent components according to different stain components, improves the efficiency of detergent use, has better stain washing effect, has less detergent residue, avoids poor rinsing effect caused by excessive addition of detergent, and improves the washing and rinsing effect. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 The flowchart of the laundry device detergent putting method of the present application;

[0046] Figure 2 The schematic diagram of the elution amount of the washing-out matter changing with time after the nth time of adding the component detergent;

[0047] Figure 3 The case of the elution amount of the washing-out matter in the unit time of the multi-section type trace addition of the detergent. DETAILED DESCRIPTION

[0048] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0049] The present application proposes a laundry device detergent putting method, the principle of which is to put clothes into a laundry device and fully wet and soak the clothes with water with traceable water amount, to put a trace amount of a certain component detergent at a fixed time, to track the elution of the component detergent corresponding to the stains in the water quality by using a water quality monitoring module in the process of dirtiness falling off from the surface of the clothes, to determine the subsequent input amount and input logic of the component detergent.

[0050] Example one

[0051] The embodiment proposes a laundry device detergent dispensing method. The laundry is put into the washing cabin and enters the washing process. The washing process includes the following steps:

[0052] (1) After the washing process is started, a certain amount of one or more component detergents is initially added to the washing cabin. The component detergents are used to remove a preset type of dirt, and water is automatically added according to the program conditions to dilute, dissolve, and disperse the detergents.

[0053] (2) The amount of dirt eluted or the elution rate of various types of dirt in the washing water is obtained at a preset unit time interval. The elution amount indicates the total mass of the corresponding type of dirt that is separated from the surface of the laundry and enters the washing water within a first unit time after the addition of a component detergent. The elution rate indicates the change in the elution amount of the corresponding type of dirt within a second unit time after the addition of a component detergent.

[0054] (3) The obtained elution amount or elution rate is compared with the pre-stored storage parameters to determine whether at least one component detergent needs to be continuously added. If yes, the amount and method of adding the corresponding component detergent are determined, and the next step is entered. If no, the addition of the component detergent is stopped, and the washing is performed according to the program conditions until the washing process is completed.

[0055] (4) The component detergent is added to the washing cabin according to the determined amount and method of adding the component detergent, and the step (2) is returned.

[0056] Specifically, in step (1), at the beginning of the washing process after it is started, the type of the component detergent initially added to the washing cabin can be adjusted according to the information about the material and dirt of the laundry obtained by the laundry device from the outside. If a certain type of dirt is not included, the component detergent corresponding to the dirt can not be added in a small amount.

[0057] In steps (2) to (4), after the initial addition of the detergent in the washing process is completed, the elution amount of the corresponding component dirt in the washing water is monitored in real time. The monitored elution amount is compared with the pre-stored storage parameters or standard curve to obtain the subsequent detergent dispensing logic. The dispensing logic is used to accurately control the dispensing time and amount of the detergent. That is, by adding different types of detergents in multiple steps and using multiple indexes to determine the type and content of the dirt on the laundry, the subsequent addition of different types of detergents is guided.

[0058] The method of the embodiment is aimed at the washing and elution of different stains on clothes in a single washing process of the washing device. Different component detergents for different types of stains are added to the washing cabin at the same time or at different times, and multiple stain component elution processes are tracked independently. According to the elution amount of the eluted material detected by tracking, the addition amount of the corresponding component detergent is calculated, and then the precise addition of different component detergents can be completed, avoiding the difference in optimal use environment between different component detergents and not achieving the optimal washing effect.

[0059] Further, the proportion of component detergent or the real amount of component detergent can be presented to the user of the washing device in any form, improving the detection of the entire intelligent washing process and optimizing the user experience.

[0060] Further, the consumption rate of each type of detergent can be calculated according to the cumulative amount of different component detergents, and the user can be reminded to supplement different component detergents on time.

[0061] The following case 1 and case 2 take the elution amount as an example to explain the method of the embodiment in detail. In case 1, a storage parameter "saturation elution amount" is introduced, and in case 2, three storage parameters "limit condition 1 representing elution amount, critical value, and limit condition 2" are introduced.

[0062] Case 1:

[0063] The elution amount represents the total mass of a single stain eluted from the surface of clothes into the washing water. It can be calculated by multiplying the concentration of the stain by the water inlet amount of the washing machine. The water inlet amount of the washing machine can be obtained by calculating the flow meter / liquid level meter data information and the volume of the washing machine cavity. If the washing process involves water replenishment, the concentration of the stain will decrease due to the dilution of the stain in the water, but the calculation of the elution amount will not be affected by the increase in the water inlet amount.

[0064] After the initial addition of a small amount of detergent, the detergent interacts with the corresponding dirt on the garment surface, gradually washing it out into the water. The corresponding water quality monitoring module detects a gradual increase in the amount of detergent removed. When the amount of detergent removed is much less than the required amount to completely remove the stain (hereinafter referred to as the required amount), the concentration of detergent in the water decreases as the dirt is removed. Therefore, the rate of dirt removal gradually decreases during this period, and the concentration of the removed product over time shows a gradually decreasing trend. When the amount of detergent removed is much less than the required amount, there is no water intake or drainage, and the product of the increase in the concentration of the removed product per unit time and the amount of water in the washing machine should be a fixed value, i.e., the saturation removal amount. After a single small addition of detergent, if the change in removal amount per unit time equals the saturation removal amount, it is determined that the corresponding detergent needs to be added again, and the amount of this detergent added is determined. As the washing process continues, since the corresponding dirt on the garment surface is reduced, the amount of removed product per unit time will be lower than the saturation removal amount, i.e., the unsaturated removal amount.

[0065] Case 2

[0066] This case study is a further optimization of the precise detergent dosing method in Case 1. Based on the precise detergent dosing scheme in Case 1, Figure 2 The figure shows the amount of eluted material that changes over time during the washing process after a single, minute addition of detergent.

[0067] After a single addition of a trace amount of detergent, there are three critical values ​​for the removal of dirt from the surface of the clothing, namely, limit condition 1, the critical value, and limit condition 2 in the diagram.

[0068] Limiting Condition 1: After adding a fixed amount of detergent, the detergent is completely consumed, and the amount of dirt washed away in the washing water reaches the saturation washing amount in the first unit time. The saturation washing amount is taken as the elution limit condition 1. If the washing water still contains a large amount of such dirt, a large amount of detergent of this ingredient needs to be added.

[0069] Critical value: The detergent added this time is just enough to remove the corresponding dirt from the clothes. It is only because the washing time is insufficient that it is not completely washed away. If the washing time is extended to a sufficiently long time, the corresponding amount of dirt washed away in the washing water can reach the saturation washing amount. Therefore, the amount of dirt washed away in the washing water in the first unit time is the critical value of washing amount.

[0070] Limiting condition 2: The detergent added this time was not consumed at all, so there is no need to add more detergent or perform another washing process.

[0071] When a unit washing time ends after adding a trace amount of detergent, the logic for adding subsequent laundry detergent should be set according to the following three scenarios:

[0072] (1) If the elution amount of the eluate in the unit time is in the limit condition 1, or the elution rate (slope) of the eluate is close to the limit condition 1, it can be judged that the current component detergent is completely consumed, and the clothes still contain a large amount of such stain content, and a large amount of this component detergent needs to be added in the subsequent washing;

[0073] (2) If the elution amount of the eluate in the unit time is between the critical value and the limit condition 1, or the elution rate (slope) of the eluate is between the critical value and the limit condition 1, it can be judged that the current component detergent is not completely consumed, and the clothes still contain a large amount of such stain content, and a small amount of this component detergent needs to be added in the subsequent washing;

[0074] (3) If the elution amount of the eluate in the unit time is between the critical value and the limit condition 2, or the elution rate (slope) of the eluate is between the limit condition 2 and the critical value, it can be judged that the current component detergent is not completely consumed, and the clothes contain a small amount of such stain, and no additional component detergent is needed in the subsequent washing, only the normal washing process is needed;

[0075] The case in (2) above can be further distinguished in combination with the case 1, case 2 and case 3 shown in FIG. 1 between the limit condition 1 and the critical value, as follows: Figure 3

[0076] (2.1) When the elution amount of the eluate in the unit time is between the limit condition 1 and case 1, or the elution rate (slope) of the eluate is between the limit condition 1 and case 1, the subsequent amount of the component detergent is preset value A;

[0077] (2.2) When the elution amount of the eluate in the unit time is between case 1 and case 2, or the elution rate (slope) of the eluate is between case 1 and case 2, the subsequent amount of the component detergent is preset value B;

[0078] (2.3) When the elution amount of the eluate in the unit time is between case 2 and case 3, or the elution rate (slope) of the eluate is between case 2 and case 3, the subsequent amount of the component detergent is preset value C;

[0079] (2.4) When the elution amount of the eluate in the unit time is between case 3 and the critical value, or the elution rate (slope) of the eluate is between case 3 and the critical value, the subsequent amount of the component detergent is preset value D, wherein preset value A > B > C > D.

[0080] If the "elution rate" is taken as an example, the washing logic is the same.

[0081] The above logic is arranged as the following table 1:

[0082] ​Table 1: A certain component detergent dispensing logic

[0083]

[0084] The above multi-stage micro-addition is a fixed program of the laundry device, and the amount of micro-addition is also a fixed value. The multi-stage can be 1 and more than 1. The micro-addition amount is related to the number of multi-stage. Taking a certain segment of micro-addition in the multi-stage micro-addition washing program, comparing the concentration change of the washing-out material after single micro-addition washing, that is, the change of the unit washing time end value of the standard curve or the washing-out rate of the washing-out material at the unit washing time end, that is, the washing-out rate of the standard curve, the subsequent component detergent dispensing logic can be determined. For example, the first micro-addition of the component detergent is 0.1 g. If the unit time elution amount or elution rate is 0, no subsequent addition process is needed; if the unit time elution amount or elution rate is greater than 0, the subsequent component detergent dispensing logic is executed.

[0085] The preset parameters of the above standard curve, such as elution rate, limit condition 1, limit condition 2, critical value, and preset value, should be obtained by experiment from the washing device and its control program containing the accurate dispensing of the detergent.

[0086] The fixed washing program is used for washing. The load (weight) of the clothes during the experiment is a fixed value, which is 3 kg of national standard cotton cloth here. A total of 6 groups of experiments are performed. In each group of experiments, the clothes load with a certain amount of oil (1 g, 2 g, 3 g, 4 g, 5 g, and 6 g, respectively) is put into the washing device, and the fixed program of the washing device is used to automatically add water to soak the clothes. From the 0th moment of the washing process, 3 mL of oil detergent is added to the washing machine to remove oil stains. The total oil elution amount is measured at the end of the 3rd minute, the end of the 6th minute, the end of the 9th minute, the end of the 12th minute, and the end of the 15th minute of the washing process, respectively, and is recorded in Table 2. It should be noted that the preset amount of detergent here is related to the washing effect and the size of the cavity of the actual washing device. For example, the washing device has a dispensing unit of 3 mL; here, considering the total washing time of the washing device, the first unit time is set to 3 minutes.

[0087] Table 2

[0088]

[0089] From the above table, it can be observed that when the oil dosage is 1 g and 2 g, the total oil elution amount in the first 3 minutes is almost equal to the oil dosage, proving that 3 mL of oil-based detergent can completely elute the oil on the clothing load in the first 3 minutes; when the oil dosage is 3 g, the total oil elution amount in the first 3 minutes is less than the oil dosage, while the total oil elution amount after 12 minutes of washing time, i.e. the fourth 3 minutes, is approximately equal to the oil dosage, proving that 3 mL of oil-based detergent can elute 3 g of oil on the clothing load, but the corresponding washing time needs to be extended to 12 minutes; when the oil dosage is 4 g, 5 g, and 6 g, respectively, the total oil elution amount in the first 3 minutes is much lower than the oil dosage, and the total oil elution amount after 15 minutes of washing time, i.e. the fifth 3 minutes, is still less than the oil dosage, proving that 3 mL of oil-based detergent cannot completely elute the oil on the clothing load even with increased washing time, and additional oil-based detergent needs to be supplemented; when the oil dosage is 6 g, the total elution amount remains almost constant after the first 3 minutes of washing time, confirming that the total elution amount in the first 3 minutes in this state is the saturated elution amount of a single oil-based detergent dosage, and increasing the washing time cannot wash out more oil.

[0090] From the above experimental data, it can be defined that the single oil-based detergent dosage is 3 mL, the first unit time is 3 minutes, the elution limit condition 1, i.e. the saturated elution amount, is 3.5 g (3.46 g accurate to one decimal place), the elution limit condition 2 is 0 g, and the elution critical value is 2.6 g. Further, it can be defined that the elution condition 1 is 3.1 g, corresponding to the next oil-based detergent dosage of 2.5 mL, and the elution condition 2 is 2.9 g, corresponding to the next oil-based detergent dosage of 1.5 mL.

[0091] Similarly, the change in elution amount in the second unit time (e.g. 1 minute) during washing can be tracked in real time, i.e. the elution rate. When the oil-based detergent content is relatively low compared to the oil dosage, the elution rate at the end of the first unit time is greater than 0 g / min. The larger the oil dosage, the worse the elution effect of the 3 mL oil-based detergent dosage, and the larger the elution rate at the end of the first unit time, as shown in Table 3.

[0092] Table 3

[0093]

[0094] From the above experimental data, the single oil-based detergent dosage can be defined as 3 mL, the first unit time is 3 minutes, the elution limit condition 1 is the saturation elution rate of 1 g / min, the elution rate limit condition 2 is 0 g / min, and the elution rate critical value is 0.6 g / min. Further, the elution rate condition 1 can be defined as 0.65 g / min, the next oil-based detergent dosage is 2.5 mL, the elution rate condition 2 is 0.8 g / min, and the next oil-based detergent dosage is 1.5 mL.

[0095] With 3 kg of national standard cloth as the load and 5 g of oil as the stain, the washing effect of the existing micro-dosing process and the commonly used mixed laundry detergent according to the weighing method is compared. The total washing time is 20 minutes, and after washing, a normal secondary rinsing process is carried out. The detergent residue in the rinsing water is measured and recorded in Table 4. As can be seen from Table 4, the micro-dosing of the detergent corresponding to the stain can effectively reduce the detergent residue in the rinsing water during the rinsing stage. When the residue of the traditional mixed detergent is large, a necessary three-rinsing process is carried out. In comparison, the method of micro-dosing of the detergent corresponding to the stain can reasonably control the detergent residue during the rinsing process, without increasing unnecessary rinsing processes, so as to achieve the purpose of energy saving and water saving.

[0096] Table 4

[0097]

[0098] The method of the present application can also be used for the addition of various auxiliary washing ingredients, such as bleaching agents, softening agents, disinfectants, etc.

[0099] Example two

[0100] The present embodiment provides a washing device detergent dispensing control device, comprising:

[0101] The detergent storage module is used to store different component detergents according to the classification before the start of washing.

[0102] The detergent dispensing module is used to obtain the detergent from the detergent storage module and quantitatively input one or more component detergents into the washing cabin according to the instructions sent by the washing device control module after the start of the washing process, and the various component detergents are used to remove the preset type of dirt.

[0103] The dirt index acquisition module is configured to acquire the elution amount or elution rate of various dirt in the washing water according to a preset unit time interval, the elution amount represents the total mass of the corresponding type of dirt that is separated from the surface of the clothes and enters the washing water within a first unit time after the addition of one component detergent, and the elution rate represents the change in the elution amount of the corresponding type of dirt within a second unit time after the addition of one component detergent, and the acquired dirt index is fed back to the washing device control module.

[0104] The washing device control module is configured to compare the acquired elution amount or elution rate with a pre-stored storage parameter, determine whether at least one component detergent needs to be continuously added, if yes, formulate the addition amount and addition mode of the corresponding component detergent, and proceed to the next step, and if no, stop the addition of the component detergent, and perform washing according to the program conditions until the washing process is completed.

[0105] The dirt index acquisition module includes a water quality monitoring module configured to acquire the elution amount of various dirt in the washing water according to a preset unit time interval, and includes one or more of a full-spectrum detection module, a conductivity or TDS detection module, an image recognition detection module, a pH detection module, and a refractive index detection module.

[0106] The water quality monitoring module is configured to monitor the elution amount raw data of the corresponding component dirt in the washing water in real time, the data transmission module is configured to feed back the data detected by the water quality monitoring module to the washing device control module, the washing device control module is configured to compare and analyze the elution amount raw data monitored by the water quality monitoring module with the stored standard curve to obtain the subsequent detergent addition logic, and control the detergent addition module to add the detergent according to the addition logic in the form of an instruction, and the detergent addition module is configured to receive and accurately control the detergent addition time and addition amount according to the instruction of the washing device control module. The temperature adjusting module is configured to adjust the temperature of the washing water in the washing device.

[0107] Further, the above water quality monitoring module can be one or more of a full-spectrum detection module, a conductivity / TDS detection module, an image recognition detection module, a pH detection module, and a refractive index detection module. The full-spectrum detection module can provide quantitative concentration information of different organic matter / solid particulate matter, which is relatively comprehensive; the conductivity / TDS detection module can provide quantitative concentration information of water-soluble dirt; the image recognition detection module can assist other detection modules to provide supplementary information about dirt such as apparent content of dirt; the pH detection module can assist other detection modules to provide supplementary information about dirt such as semi-quantitative concentration information of dirt and the influence of dirt on the pH of water; and the refractive index detection module can provide the refractive index of dirt contained in water to assist in determining the quantitative concentration information of dirt.

[0108] Further, in the full spectrum detection module, according to the corresponding relationship between the intensity of the characteristic absorption peak at different wavelengths and the certain component of the stain, multiple component stains can be quantitatively tracked in real time. For example, the intensity change of UV300 in the near ultraviolet band of the full spectrum can be used to monitor the oil stains wrapped by surfactants and dissolved in water; the intensity change of UV254 in the ultraviolet band of the full spectrum can be used to monitor the intermediates such as proteinase and peptone after hydrolysis by protease, so as to monitor the protein stains before hydrolysis; the intensity change of NIR780 in the near infrared band of the full spectrum can be used to monitor the solid particles in the water.

[0109] The laundry device detergent dispensing device of the embodiment can further include:

[0110] A temperature adjusting device is used to adjust the temperature of the washing water in the laundry device. When the content of a certain difficult-to-wash stain is high, the washing efficiency of the corresponding component detergent can be improved by increasing the temperature of the washing water, thereby assisting the washing of the stain.

[0111] A display module is used to display the dispensing information of the current detergent, including the dispensing amount, dispensing time and dispensing ratio of various component detergents.

[0112] A prompt module is used to send a signal to remind the user to supplement different component detergents.

[0113] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A method for dispensing detergent into a laundry device, characterized in that, Including the following steps: (1) After the washing process is started, one or more detergents are added to the washing chamber in a fixed amount for the first time. The detergents are used to remove the preset type of dirt and automatically add water according to the program conditions to dilute, dissolve and disperse the detergent. (2) Obtain the washing amount or washing rate of various dirt in the washing water according to the preset unit time interval. The washing amount represents the total mass of the corresponding type of dirt that leaves the surface of the clothes and enters the washing water in the first unit time after a detergent component is added. The washing rate represents the change in the washing amount of the corresponding type of dirt in the second unit time after a detergent component is added. (3) Compare the obtained elution volume or elution rate with the pre-stored storage parameters to determine whether at least one component detergent needs to be added. If yes, formulate the corresponding component detergent addition amount and addition method and proceed to the next step. If no, stop the addition of component detergent and wash according to the program conditions until the washing process ends. (4) Add detergent to the washing chamber according to the prescribed dosage and method, and return to step (2). The pre-stored parameters include elution limit condition 1, elution critical value, and elution limit condition 2 determined experimentally, or elution rate limit condition 1, elution rate critical value, and elution rate limit condition 2, specifically: If, after adding a fixed amount of detergent, the amount of dirt washed away in the washing water reaches the saturation amount within the first unit time, then the saturation amount is taken as the elution limit condition 1, and the change in the amount of dirt washed away within the second unit time is taken as the elution rate limit condition 1. If, after adding a fixed amount of detergent, the amount of dirt eluted from the washing water in the first unit time is less than the saturated elution amount, and if the washing time is extended to a sufficiently long time, the corresponding amount of dirt eluted from the washing water can reach the saturated elution amount, then the amount of dirt eluted from the washing water in the first unit time is taken as the critical value of the elution amount, and the change in the elution amount in the second unit time is taken as the critical value of the elution rate. If the amount of detergent consumed in the first unit time is 0 after adding a fixed amount of detergent, then the amount of dirt washed away from the washing water in the first unit time is taken as the elution limit condition 2, and the change in the elution amount in the second unit time is taken as the elution rate limit condition 2.

2. The detergent dispensing method for the washing device according to claim 1, characterized in that: There is one or more reference values ​​for elution amount between the critical value for elution amount and the elution amount limit condition 1, and there is one or more reference values ​​for elution rate between the critical value for elution rate and the elution rate limit condition 1.

3. The detergent dispensing method for the washing device according to claim 2, characterized in that: In step (3), the obtained elution volume is compared with the pre-stored elution volume limit condition 1, elution volume critical value, and elution volume limit condition 2 to determine whether at least one component of the detergent needs to be added. Specifically, this includes: If the critical value of elution volume The amount of elution obtained If the washing volume limit condition is 1, it is determined that the current detergent component needs to be added, and the amount of detergent component to be added next is calculated based on the amount of dirt washed away in the current wash. If the elution volume limit condition 2 The amount of elution obtained If the elution threshold is reached, it is determined that the current detergent component does not need to be added further.

4. The detergent dispensing method for the washing device according to claim 3, characterized in that, In step (3), the elution reference values ​​include elution reference value 1, elution reference value 2 and elution reference value 3; The amount of detergent to be added next is calculated based on the amount of detergent removed, specifically including: If the reference value for elution volume is 1 The amount of elution obtained Washing capacity limit condition 1, determine the next addition amount of detergent component A; If the reference value for elution volume is 2 The amount of elution obtained The reference value for washing volume is 1, and the next dosage of the detergent component is determined to be B; If the reference value for elution volume is 3 The amount of elution obtained Based on the reference value of 2 for washing volume, determine the next dosage of the detergent component as C; If the critical value of elution volume The amount of elution obtained The reference value for washing volume is 3, and the next dosage of the detergent component is determined to be D; Among them, A B C D.

5. The detergent dispensing method for the washing device according to claim 4, characterized in that: In step (3), the obtained elution rate is compared with the pre-stored elution rate limit condition 1, elution rate critical value, and elution rate limit condition 2 to determine whether at least one component of the detergent needs to be added. Specifically, this includes: If the critical value of elution rate elution rate obtained If the elution rate limit condition is 1, it is determined that the current detergent component needs to be added, and the amount of detergent component to be added next is calculated based on the obtained elution rate. If the elution rate limit condition 2 elution rate obtained If the elution rate reaches a critical value, it is determined that the current detergent component does not need to be added further.

6. The detergent dispensing method for the washing device according to claim 5, characterized in that, In step (3), the elution rate reference values ​​include elution rate reference value 1, elution rate reference value 2, and elution rate reference value 3; the next dosage of the detergent component is calculated based on the obtained elution rate, specifically including: If the elution rate reference value is 1 elution rate obtained Washout rate limit condition 1, determine the next dosage of the detergent component. ; If the reference value for elution rate is 2 elution rate obtained The reference value for washout rate is 1, which determines the amount of detergent to be added next time. ; If the reference value for elution rate is 3 elution rate obtained Based on a washout rate reference value of 2, determine the next dosage of the detergent component. ; If the critical value of elution rate elution rate obtained The reference value for washout rate is 3, which determines the amount of detergent to be added next time. ; in, .

7. A detergent dispensing control device for a laundry apparatus, performing the detergent dispensing method of claim 1, characterized in that, The device includes: The detergent storage module is used to store detergents of different ingredients according to their categories before the washing process begins. The detergent dispensing module is used to obtain detergent from the detergent storage module and quantitatively add one or more detergent components into the washing chamber according to the instructions sent by the washing device control module after the washing process is started. Various detergent components are used to remove preset types of dirt. The dirt index acquisition module is used to acquire the washing amount or washing rate of various dirt in the washing water according to a preset unit time interval. The washing amount represents the total mass of the corresponding type of dirt that leaves the surface of the clothes and enters the washing water in the first unit time after a detergent component is added. The washing rate represents the change in the washing amount of the corresponding type of dirt in the second unit time after a detergent component is added. The acquired dirt index is then transmitted back to the washing device control module. The washing machine control module compares the acquired washing volume or washing rate with the pre-stored parameters to determine whether at least one detergent ingredient needs to be added. If so, it determines the corresponding amount and method of adding the detergent ingredient and proceeds to the next step. If not, it stops adding the detergent ingredient and continues washing according to the program conditions until the washing process is completed.

8. The detergent dispensing control device for a laundry apparatus according to claim 7, characterized in that: The dirt and filth index acquisition module includes a water quality monitoring module; The water quality monitoring module is used to obtain the amount of various dirt removed from the washing water at preset unit time intervals, including one or more of the following: full spectrum detection module, conductivity or TDS detection module, image recognition detection module, pH detection module, and refractive index detection module.

9. A detergent dispensing control device for a laundry apparatus according to claim 7, characterized in that: The device also includes a temperature regulating device for regulating the temperature of the washing water in the washing machine.

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