Control method of washing equipment and washing equipment

Abstract

The invention discloses a washing equipment control method and washing equipment, and the control method comprises the steps that a detection period with a fixed time length is preset in the washing process of the washing equipment, and in the washing process, the washing equipment executes the following steps: S1, in each detection period, carrying out stain amount detection on washing water to obtain a detection value of the stain amount of the washing water, carrying out operational analysis on the detection value to obtain a stain index of the washing water in the current detection period; s2, comparing the stain index XN obtained in the Nth detection period with the stain index X1 obtained in the first detection period to obtain the stain variation of the washing water; and S3, if the stain variable quantity of the washing water is smaller than or equal to a set threshold value, the washing process is ended. According to the washing equipment, through operational analysis of the detection values and comparison of the stain indexes, the credibility of the stain variation of the washing water is good, the detection error and interference of the detection device can be considered less in the judgment process, and the time for judging the end of the washing process is more accurate.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing equipment, and in particular, relates to a control method for washing equipment and the washing equipment. Background Art

[0002] As the most widely used household appliance in people's daily life, washing equipment helps people get rid of the trouble of washing clothes and brings great convenience to people. However, with the increasing types and functions of washing equipment, it is difficult to control the end time of the washing process while making it more suitable for users' different washing needs.

[0003] For this reason, some washing equipment is provided with a detection device which can detect the turbidity of washing water, and decides when to end the washing process according to the comparison result of the detection value and the threshold value.

[0004] However, the judgment process of the above-mentioned washing equipment is relatively simple and cannot cope with the detection errors and interferences of the detection device, resulting in poor credibility of the data used to determine when to end the washing process and poor accuracy of the judgment result.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a control method and a washing device for a washing device. The washing device makes the credibility of the change in the amount of stains in the washing water better through calculation and analysis of the detection values ​​and comparison of the stain index, so that the judgment process can consider the detection error and interference of the detection device less, and the timing of ending the washing process can be determined more accurately.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] The present invention provides a control method for a washing device, wherein a detection cycle of a fixed length is preset during a washing process of the washing device, and during the washing process, the washing device performs:

[0009] Step S1, in each detection cycle, the amount of stains on the washing water is detected to obtain a detection value of the amount of stains on the washing water, and the detection value is analyzed and calculated to obtain a stain index of the washing water in the current detection cycle;

[0010] Step S2: The stain index X obtained in the Nth detection cycle is N Compare with the stain index X1 obtained in the first detection cycle to obtain the change in the stain of the washing water;

[0011] Step S3: if the change in the amount of stains in the washing water is less than or equal to a set threshold, then the washing process is terminated;

[0012] In which, the value of N in step S2 is greater than or equal to 2.

[0013] The washing device of the present invention makes the credibility of the change in the amount of stains in the washing water better by calculating and analyzing the detection values ​​and comparing the stain index, so that the judgment process can consider the detection error and interference of the detection device less, and the timing of ending the washing process can be determined more accurately.

[0014] A further solution of the present invention is: Step S1 specifically includes: in each of the detection cycles, the washing equipment detects the amount of stains on the washing water once at equal time intervals to obtain a detection value; an average value of several detection values ​​obtained in the current detection cycle is taken as the stain index of the current detection cycle.

[0015] In the above scheme, by taking the average value of the detection values ​​at equal time intervals as the stain index of the current detection cycle, the influence of interference on the detection device on the stain index is reduced, making the stain index more accurate and determining when to end the washing process more accurately.

[0016] A further solution of the present invention is that step S2 specifically comprises: calculating the stain index X N The absolute value of the difference between the stain index X1 and the stain index X1 is used to obtain the change in the stain of the washing water.

[0017] In the above scheme, the stain index X N The absolute value of the difference with the stain index X1 is used to obtain the change in the stain of the washing water, so that the change in the stain of the washing water does not need to consider the detection error of the detection device, but has a higher credibility and can more accurately determine when to end the washing process.

[0018] A further solution of the present invention is: in step S3, if the change in the amount of stains in the washing water is greater than the set threshold, then step S4 is executed: continue to run the next detection cycle, and obtain the stain index X N+a ; Set the stain index X N+a The stain index X obtained in the a+1th detection cycle a+1 Compare and obtain the change amount of washing water stains, and then return to step S3;

[0019] The initial value of a is 1, and the value of a increases by 1 each time step S4 is executed.

[0020] In the above scheme, continuous judgment of when to end the washing process is achieved.

[0021] A further solution of the present invention is: the washing device is preset with several different setting modes, and the value of N in step S2 is determined according to the setting mode currently running.

[0022] In the above scheme, the requirements of washing cleanliness in different setting modes are met.

[0023] A further solution of the present invention is that: the washing device determines the upper limit of the running time of the washing process according to the setting mode of the current operation;

[0024] If the running time of the washing process is greater than the upper limit of the running time, the washing process is ended.

[0025] In the above scheme, when the running time of the washing process is greater than the upper limit of the running time, the washing process is terminated, thereby avoiding the situation where the stains that cannot be washed away make the change in the washing water stain amount always unable to be less than or equal to the set threshold. It also prevents the long-term operation of the washing process from causing the operating motor of the washing equipment to overheat or the clothes to be washed badly, and further meets the requirements of different setting modes for washing cleanliness.

[0026] A further solution of the present invention is that after the washing process is finished, the washing device runs a rinsing process, including:

[0027] During the rinsing process of the washing device, the detection amount of the stain amount of the rinsing water is obtained multiple times, and the stain content of the rinsing water is obtained after calculation and analysis based on the detection amount;

[0028] If the stain content of the rinsing water is less than or equal to the set threshold, the rinsing process is ended.

[0029] In the above scheme, the detection amount of the rinse water stain amount obtained multiple times is analyzed through calculation to obtain the rinse water stain content, and the rinse water stain content is used to determine when to end the rinsing process. When the clothes are rinsed clean, the rinsing process is accurately ended, so that the clothes can achieve a higher rinsing rate, lower stains and clothing treatment agent residues.

[0030] A further solution of the present invention is that the rinsing process includes one or more rinsing cycles;

[0031] If the change in the amount of stains on the washing water is greater than the set threshold, the operation of draining the washing tub is performed, and then the next rinsing cycle is run again; otherwise, the operation of draining the washing tub is performed, and then the rinsing process is ended.

[0032] In the above scheme, by setting the rinsing cycle, it is possible to change the water in the washing tub during the process of obtaining the detection amount of the stain amount in the rinsing water, thereby making the rinsing process more efficient.

[0033] The present invention also provides a washing device, wherein the washing device executes the control method of the washing device.

[0034] A further solution of the present invention is: the washing device comprises: a detection module, comprising an ultraviolet spectrum sensor, the ultraviolet spectrum sensor detecting the amount of stains in the washing water and the rinsing water by ultraviolet absorption spectroscopy;

[0035] The control module is used to execute steps S1 to S4, obtain a stain index and a stain content of the rinsing water according to the detection value of the washing water and the detection amount of the rinsing water detected by the detection module, control whether to end the washing process according to the stain index, and control whether to end the rinsing process according to the stain content of the rinsing water.

[0036] In the above scheme, through the control module, the washing equipment further processes the detection value of the washing water and the detection amount of the rinsing water detected by the detection module and makes a judgment on ending the washing process and the rinsing process. Through the ultraviolet spectrum sensor, accurate detection value of the washing water and detection amount of the rinsing water are obtained, making the timing of deciding to end the washing process and the rinsing process more accurate.

[0037] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0038] 1. The washing device makes the credibility of the change of the washing water stain better by calculating and analyzing the detection value and comparing the stain index, so that the judgment process can consider the detection error and interference of the detection device less, and the timing of ending the washing process can be determined more accurately;

[0039] 2. Set the stain index X in step S2 and step S4 according to different setting modes. N and stain index X N+a The value of N in the formula satisfies the requirements of washing cleanliness in different setting modes.

[0040] 3. The rinsing water stain content is obtained through multiple acquisitions of the detection amount of the rinsing water stain, and the rinsing water stain content is used to determine when to end the rinsing process. When the clothes are rinsed clean, the rinsing process is accurately ended, so that the clothes can achieve a higher rinsing rate, lower stains and clothing treatment agent residues;

[0041] 4. Through the control module, the washing equipment further processes the detection value of the washing water and the detection amount of the rinsing water detected by the detection module and determines whether to end the washing process and the rinsing process. Through the ultraviolet spectrum sensor, accurate detection values ​​of the washing water and the detection amount of the rinsing water are obtained, making the timing of deciding to end the washing process and the rinsing process more accurate.

[0042] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0044] Figure 1 It is a schematic flow chart of a control method of a washing device of the present invention;

[0045] Figure 2 It is a cycle flow diagram of a control method for washing equipment of the present invention.

[0046] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0048] like Figure 1 and Figure 2 As shown, the present invention provides a control method and a washing device for a washing device, wherein the washing device makes the credibility of the change in the amount of stains in the washing water better through calculation and analysis of the detection values ​​and comparison of the stain index, so that the judgment process can consider the detection error and interference of the detection device less, and the timing of ending the washing process can be determined more accurately.

[0049] Embodiment 1

[0050] like Figure 1 and Figure 2 As shown, this embodiment provides a control method for a washing device, wherein a detection cycle of a fixed length is preset during the washing process of the washing device. During the washing process, the washing device executes: step S1, in each detection cycle, detecting the amount of stains on the washing water to obtain a detection value of the amount of stains on the washing water, performing calculation and analysis on the detection value to obtain a stain index of the washing water in the current detection cycle; step S2, calculating the stain index X obtained in the Nth detection cycle; N Compare with the stain index X1 obtained in the first detection cycle to obtain the change in washing water stains; step S3, if the change in washing water stains is less than or equal to the set threshold, end the washing process; wherein the value of N in step S2 is greater than or equal to 2.

[0051] Specifically, the washing device includes: a detection module, including an ultraviolet spectrum sensor, which detects the amount of stains in washing water and rinsing water by ultraviolet absorption spectroscopy; a control module, which is used to execute steps S1 to S4, obtain a stain index and a stain content in rinsing water according to the detection value of the washing water and the detection amount of the rinsing water detected by the detection module, control whether to end the washing process according to the stain index, and control whether to end the rinsing process according to the stain content in the rinsing water.

[0052] The ultraviolet spectrum sensor detects the amount of stains using ultraviolet absorption spectroscopy. The ultraviolet absorption spectroscopy detects the amount of a substance by observing the corresponding relationship between a substance and its ultraviolet visible spectrum when the substance absorbs light of a specific wavelength to a maximum value. The amount of stains includes a variety of substances that cannot be detected by conventional sensors. Conventional sensors, such as infrared tube sensors, cannot detect organic soluble stains, including oily stains, proteins, clothing treatment agents, and emulsions, while the ultraviolet spectrum sensor can detect insoluble particles while detecting the above-mentioned organic soluble stains. Since organic soluble stains include the main types of dirt on clothes, during the washing process, the amount of stains is detected in real time and accurately, and the stain index of the washing water in each detection cycle is recorded through calculation and analysis, so that the detection module of the washing equipment further performs calculation and analysis on the amount of stains, thereby reducing the interference of the fluctuation of the detection value of the washing water detected by the ultraviolet spectrum sensor on the judgment result. In addition, by using the stain index X obtained in the Nth detection cycle N Compared with the stain index X1 obtained in the first detection cycle, the change in washing water stains is obtained, which reduces the influence of detection errors caused by the setting position of the ultraviolet spectrum sensor on the judgment result, and also reduces the influence of electromagnetic interference caused by the motor of the washing equipment and other equipment on the ultraviolet spectrum sensor on the judgment result, thereby increasing the credibility of the change in washing water stains and making the timing of ending the washing process more accurate.

[0053] Furthermore, according to the detection value, after operation and analysis, the stain index of the washing water in each detection cycle is recorded, which specifically includes: filtering and analyzing the detection value, and recording the filtering and analysis results as the stain index of the washing water in each detection cycle. The filtering analysis can be any filtering method in specific implementation, such as median filtering method. The median filtering method is to continuously obtain odd-numbered detection values, arrange the odd-numbered detection values ​​according to size, take the middle value as the effective value of this time, and record it as the stain index of the washing water in the current detection cycle.

[0054] Specifically, the control module instructs the detection module to start acquiring the detection value of the amount of stains in the washing water 30 seconds after the water intake of the washing process is completed, and the set threshold is 0.2.

[0055] Therefore, the washing device compares the stain index obtained through the Nth detection cycle with the stain index obtained through the first detection cycle to obtain the change in washing water stains. The change in washing water stains is used to determine when to end the washing process, so that the credibility of the change in washing water stains is better, and the judgment process can consider the detection error and interference of the detection device less, and the timing of determining the end of the washing process is more accurate.

[0056] In this embodiment, step S1 specifically includes: in each detection cycle, the washing device detects the amount of stains on the washing water once at equal time intervals to obtain a detection value; and averages several detection values ​​obtained in the current detection cycle as the stain index of the current detection cycle.

[0057] Specifically, the time interval is 2 seconds, the detection cycle is 20 seconds, and 10 detection values ​​are obtained in the detection cycle.

[0058] In detail, the average of several detection values ​​obtained in the current detection cycle is taken, which is the process in which the control module of the washing equipment performs mean filtering on the detection values ​​of the detection module, so that accidental changes in the detection values ​​will not affect the value of the stain index too much, and can better deal with the periodic electromagnetic interference and random electromagnetic interference generated by the motor and other equipment of the washing equipment to the detection module.

[0059] Therefore, by taking the average value of the detection values ​​at equal time intervals as the stain index of the current detection cycle, the influence of interference on the detection device on the stain index is reduced, making the stain index more accurate and determining when to end the washing process more accurately.

[0060] In this embodiment, step S2 specifically includes: calculating the stain index X N The absolute value of the difference between the stain index X1 and the stain index X1 is used to obtain the change in the stain of the washing water.

[0061] In detail, the stain index X N The absolute value of the difference between the stain index X1 and the stain index X1 is used to obtain the change in the stain of the washing water, so that when the clothes are washed, the change in the stain index is small, the change in the stain of the washing water is small, and the washing process is stopped in time, so that the washing state of the clothes can be accurately judged and the washing process can be accurately ended.

[0062] In detail, the stain index X NThe absolute value of the difference between the detection error of the detection module and the stain index X1 is used to obtain the change in the washing water stain, which also reduces the influence of the detection error caused by the setting position of the detection module on the judgment result, and also reduces the influence of electromagnetic interference of the motor of the washing equipment and other equipment on the ultraviolet spectrum sensor on the judgment result, thereby increasing the credibility of the change in the washing water stain, and making the timing of determining the end of the washing process more accurate.

[0063] Therefore, the stain index X N The absolute value of the difference with the stain index X1 is used to obtain the change in the stain of the washing water, so that the change in the stain of the washing water does not need to consider the detection error of the detection device, but has a higher credibility and can more accurately determine when to end the washing process.

[0064] In this embodiment, in step S3, if the change in the amount of stains in the washing water is greater than the set threshold, step S4 is executed: continue to run the next detection cycle and obtain the stain index X N+a ; Set the stain index X N+a The stain index X obtained in the a+1th detection cycle a+1 By comparison, the change in the amount of stains in the washing water is obtained, and then the process returns to step S3; wherein the initial value of a is 1, and the value of a increases by 1 each time step S4 is executed.

[0065] Specifically, in a specific implementation of this embodiment, the control module of the washing device is a controller of the washing device, more specifically a single-chip microcomputer controller, equipped with an implementation algorithm of steps S1 to S4, wherein the implementation of steps S1 to S4 in the controller is: by setting N storage spaces, the stain index X1 to the stain index X N Write the first storage space to the Nth storage space, and when the washing device runs the next detection cycle, the newly obtained stain index X a+1 To stain index X N+a The first storage space is written to the Nth storage space and the original data is overwritten. This achieves that the data of multiple detection cycles can be stored by occupying a small storage space of the controller.

[0066] Thus, a continuous determination of when to end the washing process is achieved.

[0067] In this embodiment, the washing device is preset with several different setting modes, and the value of N in step S2 is determined according to the setting mode currently running.

[0068] In a specific implementation of this embodiment, the above steps S1 to S4, and if the running time of the washing process is greater than the upper limit of the running time, the washing process is terminated, are set in the special function of the washing device, and the special function can be named as the rinsing and washing function, and the special function is built into the setting mode of the washing device, and the setting mode is, for example: smart washing, children's clothing, underwear and home textiles. After the user selects one of smart washing, children's clothing, underwear and home textiles, he chooses whether to start the rinsing and washing function. If the user chooses not to start the rinsing and washing function, the original washing process of smart washing, children's clothing, underwear and home textiles is executed; if the user chooses to start the rinsing and washing function, the stain index X in step S2 and step S4 of the rinsing and washing function is set according to the smart washing, children's clothing, underwear or home textiles. N and stain index X N+a The value of N in the setting mode is set as well as the upper limit of the operation time of the rinse and wash function. The value of N is the preset number of cycles of the rinse mode, and the upper limit of the operation time is the preset upper limit of the washing time of the setting mode, and the time unit is minutes. Therefore, the requirements of different setting modes for washing cleanliness are met. For example, the stain index X of the smart wash N The interval between the stain index X1 and the stain index X2 is larger, the change in the stain of the washing water is less likely to be less than or equal to the set threshold, and the requirement for washing cleanliness is higher. N The interval between the stain index X1 and the value thereof is small, the change in the stain of the washing water is more likely to be less than or equal to the set threshold, and the requirement for the washing cleanliness is lower.

[0069] In another specific implementation of this embodiment, the above steps S1 to S4, and if the running time of the washing process is greater than the upper limit of the running time, then the washing process is terminated, are set in the special function of the washing device, and the special function can be named as a rinse and wash function. The rinse and wash function is a special program set in parallel with the setting mode of the washing device, allowing the user to choose to use the setting mode or the special program. Specifically, a separate rinse and wash function key is set on the washing device, and if the user presses the rinse and wash function key, the special function is started.

[0070] Therefore, by setting the stain index X in step S2 and step S4 according to different setting modes, N and stain index X N+a The value of N in the formula satisfies the requirements of washing cleanliness in different setting modes.

[0071] In this embodiment, the washing device determines the upper limit of the running time of the washing process according to the setting mode of the current operation; if the running time of the washing process is greater than the upper limit of the running time, the washing process is terminated.

[0072] Specifically, the judgment that the running time of the washing process is greater than the upper limit of the running time is independent of the operation of steps S1 to S4. The operation of steps S1 to S4 can be interrupted at any time point in the washing process, and the washing process can be terminated.

[0073] If the running time of the washing process is greater than the upper limit of the running time, the washing process is terminated, thereby avoiding the situation where the stain change in the washing water cannot be less than or equal to the set threshold due to stains that cannot be washed clean, and preventing the long-term running of the washing process from causing the running motor of the washing device to overheat or the clothes to be washed badly, and further meeting the requirements of different setting modes for washing cleanliness.

[0074] In this embodiment, after the washing process is completed, the washing device runs a rinsing process, including: during the rinsing process of the washing device, the detection amount of the rinse water stain amount is obtained multiple times, and the rinse water stain content is obtained after calculation and analysis based on the detection amount; if the rinse water stain content is less than or equal to the set limit, the rinsing process is ended.

[0075] Specifically, the computational analysis is the same as the computational analysis of the washing process, including the filtering analysis, more specifically mean filtering, that is, calculating the average value of the detected amounts of rinse water stains obtained multiple times.

[0076] The rinse water stain content is obtained by repeatedly obtaining the detected amount of rinse water stains, and then analyzed through calculation. The rinse water stain content is used to determine when to end the rinsing process. When the clothes are rinsed clean, the rinsing process is accurately ended, so that the clothes can achieve a higher rinsing rate, lower stains and clothing treatment agent residues.

[0077] In this embodiment, the rinsing process includes one or more rinsing cycles; if the stain content of the rinsing water is greater than the set limit, the washing tub is drained and then the next rinsing cycle is run again; otherwise, the washing tub is drained and then the rinsing process is ended.

[0078] Specifically, during the period from 30 seconds after the completion of water intake in the rinse cycle to 30 seconds before the end of the rinse cycle, the detection amounts of rinse water stains are obtained multiple times at equal detection time intervals, and the average of the multiple detection amounts is calculated to obtain the rinse water stain content.

[0079] In a specific implementation of this embodiment, the above judgment of ending the rinsing process is set in the special function together with steps S1 to S4. If the user chooses to start the rinsing function after selecting a setting mode, the upper limit of the number of rinsing times is set according to the first preset value of the setting mode. If the cumulative number of operations of the rinsing cycle reaches the upper limit of the number of rinsing times, after the rinsing cycle ends, the operation of draining the washing tub is performed, and then the rinsing process ends. The setting limit is set according to the second preset value of the setting mode.

[0080] By setting the rinsing cycle, it is possible to change the water in the washing tub during the process of obtaining the detection amount of the stain amount of the rinsing water, thereby making the rinsing process more efficient.

[0081] In this embodiment, Figure 2 As shown, the specific process of the control method of the washing device is as follows: the washing device starts a washing process, and 30 seconds after the water intake of the washing process is completed, the control module enables the ultraviolet spectrum sensor of the detection module to start acquiring the detection value of the amount of stains in the washing water, and executes steps S1 to S4. When the washing process is not completed after step S3 is executed, the cycle of steps S3 and S4 is started, until the running time of the washing process is greater than the upper limit of the running time, or the judgment condition of step S3 is met, the washing process is ended;

[0082] After the washing device finishes the washing process, the rinsing cycle of the rinsing process is started in a cyclic operation. From 30 seconds after the water intake of each rinsing cycle is completed to 30 seconds before the end of the rinsing cycle, the control module enables the ultraviolet spectrum sensor of the detection module to start obtaining the detection amount of the stain amount in the rinsing water, and before the operation of draining the washing tub is performed, the above-mentioned judgment on the end of the rinsing process is performed. If the cumulative number of running times of the rinsing cycle reaches the upper limit of the number of rinses, or the stain content in the rinsing water is less than or equal to the set limit, the operation of draining the washing tub is performed, and then the rinsing process is ended. Otherwise, the next rinsing cycle is cyclically run until the rinsing process is ended.

[0083] In this embodiment, by calculating and analyzing the detection value and comparing the stain index, the credibility of the change amount of the stain in the washing water is better, so that the judgment process can consider the detection error and interference of the detection device less, and the timing of ending the washing process is more accurate; by setting the stain index X in step S2 and step S4 according to different setting modes, N and stain index X N+aThe value of N meets the requirements of washing cleanliness of different setting modes; the detection amount of rinse water stains obtained multiple times is used to obtain the rinse water stain content through calculation and analysis. The rinse water stain content is used to determine when to end the rinsing process. When the clothes are rinsed clean, the rinsing process is accurately ended, so that the clothes can achieve a higher rinsing rate, lower stains and clothing treatment agent residues.

[0084] Embodiment 2

[0085] like Figure 1 and Figure 2 As shown, this embodiment provides a washing device, and the washing device executes the control method of the washing device as described in the first embodiment.

[0086] In this embodiment, the washing device includes: a detection module, including an ultraviolet spectrum sensor, and the ultraviolet spectrum sensor detects the amount of stains in washing water and rinsing water through ultraviolet absorption spectroscopy; a control module, used to execute steps S1 to S4, obtain a stain index and a stain content of rinsing water according to the detection value of the washing water and the detection amount of the rinsing water detected by the detection module, control whether to end the washing process according to the stain index, and control whether to end the rinsing process according to the stain content of the rinsing water.

[0087] Through the control module, the washing equipment further processes the detection value of the washing water and the detection amount of the rinsing water detected by the detection module and makes a judgment on ending the washing process and the rinsing process. Through the ultraviolet spectrum sensor, accurate detection value of the washing water and the detection amount of the rinsing water are obtained, making the timing of deciding to end the washing process and the rinsing process more accurate.

[0088] In this embodiment, the ultraviolet spectrum sensor uses ultraviolet absorption spectroscopy to detect the amount of stains. The ultraviolet absorption spectroscopy detects the amount of substances by the corresponding relationship between the substance and its ultraviolet visible spectrum when the substance absorbs light of a specific wavelength to the maximum value. The amount of stains includes a variety of substances that cannot be detected by conventional sensors. Conventional sensors, such as infrared tube sensors, cannot detect organic soluble stains, including oily stains, proteins, clothing treatment agents, and emulsions, while the ultraviolet spectrum sensor can detect insoluble particles while detecting the above-mentioned organic soluble stains. Since organic soluble stains include the main types of dirt on clothes, during the washing process, by real-time and accurate detection of the amount of stains, and when the rate of change does not change significantly, the washing process is stopped in time, so as to accurately judge the washing state and rinsing state of the clothes, and when the clothes are washed, the washing process is accurately ended, and when the clothes are rinsed clean, the rinsing process is accurately ended, so that the clothes can achieve a higher rinsing rate, lower stains and clothing treatment agent residues.

[0089] In this embodiment, the control module is a controller of the washing device. The controller is equipped with the algorithm of steps S1 to S4 for further processing and logical judgment of the data obtained from the self-detection module so as to better control the end timing of the washing process and the rinsing process.

[0090] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A method for controlling a washing device, characterized in that: The washing process of the washing device is preset with a detection cycle of a fixed length. During the washing process, the washing device performs: Step S1, in each detection cycle, the amount of stains on the washing water is detected to obtain a detection value of the amount of stains on the washing water, and the detection value is analyzed and calculated to obtain a stain index of the washing water in the current detection cycle; Step S2: The stain index X obtained in the Nth detection cycle is N Compare with the stain index X1 obtained in the first detection cycle to obtain the change in the stain of the washing water; Step S3: if the change in the amount of stains in the washing water is less than or equal to a set threshold, then the washing process is terminated; In which, the value of N in step S2 is greater than or equal to 2.

2. A control method for a washing device according to claim 1, characterized in that: Step S1 specifically includes: in each detection cycle, the washing device detects the amount of stains on the washing water once at equal time intervals to obtain a detection value; and averages several detection values ​​obtained in the current detection cycle as the stain index of the current detection cycle.

3. A control method for a washing device according to claim 1, characterized in that: Step S2 specifically includes: calculating the stain index X N The absolute value of the difference between the stain index X1 and the stain index X1 is used to obtain the change in the stain of the washing water.

4. A control method for a washing device according to claim 1, characterized in that: In step S3, if the change in the amount of stains in the washing water is greater than the set threshold, step S4 is executed: continue to run the next detection cycle and obtain the stain index X N+a ; Set the stain index X N+a The stain index X obtained in the a+1th detection cycle a+1 Compare and obtain the change amount of washing water stains, and then return to step S3; The initial value of a is 1, and the value of a increases by 1 each time step S4 is executed.

5. A control method for a washing device according to claim 1, characterized in that: The washing device is preset with several different setting modes, and the value of N in step S2 is determined according to the setting mode currently running.

6. A control method for a washing device according to claim 5, characterized in that: The washing device determines the upper limit of the running time of the washing process according to the current running setting mode; If the running time of the washing process is greater than the upper limit of the running time, the washing process is ended.

7. A control method for a washing device according to any one of claims 1 to 6, characterized in that: After the washing process is finished, the washing device performs a rinsing process, including: During the rinsing process of the washing device, the detection amount of the stain amount of the rinsing water is obtained multiple times, and the stain content of the rinsing water is obtained after calculation and analysis based on the detection amount; If the stain content of the rinsing water is less than or equal to the set limit, the rinsing process is ended.

8. A control method for washing equipment according to claim 7, characterized in that: The rinsing process includes one or more rinsing cycles; If the stain content of the rinsing water is greater than the set limit, the operation of draining the washing tub is performed, and then the next rinsing cycle is run again; otherwise, the operation of draining the washing tub is performed, and then the rinsing process is ended.

9. A washing device, characterized in that: The washing device executes the washing device control method according to any one of claims 1 to 8.

10. A washing device according to claim 9, characterized in that: include: The detection module includes an ultraviolet spectrum sensor, which detects the amount of stains in the washing water and the rinsing water by ultraviolet absorption spectroscopy; The control module is used to execute steps S1 to S4, obtain a stain index and a stain content of the rinsing water according to the detection value of the washing water and the detection amount of the rinsing water detected by the detection module, control whether to end the washing process according to the stain index, and control whether to end the rinsing process according to the stain content of the rinsing water.

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