Control method of washing equipment and washing equipment

Abstract

The invention discloses a control method of washing equipment and the washing equipment, and the control method of the washing equipment comprises the following steps: S1, in the washing process of the washing equipment, obtaining a detection result of the stain amount of washing water, and obtaining a first stain index within a first set duration; s2, the detection result of the stain amount of the washing water is obtained again, and a second stain index within a second set duration is obtained; s3, according to the first stain index, the second stain index and preset interval time, the stain amount change rate is obtained through calculation; s4, if the stain amount change rate is smaller than or equal to a set threshold value, the washing process is ended. According to the method and the device, the stain quantity change rate reflects the change condition of the stain index within a period of time, so that the opportunity for ending the washing process is judged by comparing the stain quantity change rate with the set threshold value, and the aim of accurately controlling and ending the washing process by the washing equipment is fulfilled.

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 equipped with a detection device that can detect the turbidity of washing water, and decides when to end the washing process based on the comparison result of the detected stain index and the threshold.

[0004] However, the judgment process of the above-mentioned washing equipment is relatively simple and cannot reflect the change of the stain index over a period of time.

[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 stain amount change rate reflects the change of the stain index over a period of time, and then the timing to end the washing process is judged by comparing the stain amount change rate with the set threshold, thereby achieving the purpose of the washing device being able to accurately control the end of the washing process.

[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, comprising the following steps:

[0009] Step S1, during the washing process of the washing device, obtaining a detection result of the amount of stains in the washing water, and obtaining a first stain index within a first set time period;

[0010] Step S2, obtaining the detection result of the amount of stains in the washing water again, and obtaining a second stain index within a second set time period;

[0011] Step S3, calculating the stain amount change rate according to the first stain index, the second stain index and a preset interval time;

[0012] Step S4: If the rate of change of the amount of dirt is less than or equal to a set threshold, the washing process is terminated.

[0013] In the present invention, the change of the stain index over a period of time is reflected by the stain amount change rate, and then the timing of ending the washing process is determined by comparing the stain amount change rate with the set threshold, thereby achieving the purpose of accurately controlling the end of the washing process by the washing device.

[0014] A further solution of the present invention is: step S1 specifically comprises:

[0015] The amount of stains in the washing water is detected multiple times within the first set time period to obtain multiple stain index collection values, and the multiple stain index collection values ​​are processed by calculation to obtain the first stain index.

[0016] A further solution of the present invention is: step S2 specifically comprises:

[0017] The amount of stains in the washing water is detected multiple times within the second set time period to obtain multiple stain index collection values, and the multiple stain index collection values ​​are processed by calculation to obtain the second stain index.

[0018] In the above solution, by performing calculations on a plurality of collected stain index values, the first stain index, the second stain index and the stain amount change rate are made more accurate.

[0019] A further solution of the present invention is: in step S1 / step S2, the washing device detects the amount of stains in the washing water once at equal time intervals within the first set time length / the second set time length to obtain the stain index collection value;

[0020] The operation processing is specifically as follows:

[0021] Within the first set time length and the second set time length, detection results of the amount of stains in the washing water are obtained at equal time intervals to obtain a plurality of stain index collection values, and an average value of the plurality of stain index collection values ​​is calculated.

[0022] In the above solution, the first stain index, the second stain index and the stain amount change rate are further made more accurate.

[0023] A further solution of the present invention is: Step S3 specifically comprises:

[0024] Step S3 is specifically as follows:

[0025] The stain amount change rate is calculated by the following formula:

[0026]

[0027] Among them, K is the stain amount change rate, X1 is the first stain index, X2 is the second stain index, and T is the preset interval time.

[0028] A further solution of the present invention is that the preset interval time, the first set duration and the second set duration are all equal.

[0029] In the above scheme, the rate of change of the amount of stain is made more accurate.

[0030] A further solution of the present invention is: in step S4, if the stain amount change rate is greater than the set threshold, the following steps are performed:

[0031] Step S5, assigning the value of the second stain index to the first stain index, and then returning to step S2.

[0032] In the above scheme, step S5 is used to return to step S2, so as to continuously obtain the rate of change of the amount of stains and continuously judge the timing of ending the washing process.

[0033] A further solution of the present invention is: if the running time of the washing process exceeds the maximum washing time, the washing process is terminated.

[0034] In the above scheme, if the running time of the washing process exceeds the maximum washing time, the washing process is terminated, which avoids the situation where the stain amount change rate cannot be less than or equal to the set threshold due to stains that cannot be washed clean, and also prevents the long-term running of the washing process from causing the running motor of the washing equipment to overheat or the clothes to be damaged.

[0035] The present invention also provides a washing device, wherein the washing device executes the control method of the washing device.

[0036] A further solution of the present invention is: the washing device comprises:

[0037] The detection module includes an ultraviolet spectrum sensor, which detects the amount of stains in the washing water by ultraviolet absorption spectroscopy;

[0038] The control module is used to execute steps S1 to S5, obtain the first stain index, the second stain index and the stain amount change rate according to the amount of stain on the washing water detected by the detection module, and then control whether the washing device ends the washing process according to the stain change rate.

[0039] In the above scheme, through the control module, the washing equipment further processes the amount of washing water stains detected by the detection module and determines whether to end the washing process. Through the ultraviolet spectrum sensor, the accurate amount of washing water stains is obtained, and then the accurate rate of change of the stain amount is obtained, so that the timing of deciding to end the washing process is more accurate.

[0040] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0041] 1. The change rate of the stain amount reflects the change of the stain index over a period of time. The comparison between the stain amount change rate and the set threshold determines the timing of ending the washing process, so that the washing device can accurately end the washing process by obtaining the stain index;

[0042] 2. When the running time of the washing process exceeds the maximum washing time, the washing process is terminated, thereby preventing the stains that cannot be washed from causing the stain amount change rate to be unable to be less than or equal to the set threshold, and also 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;

[0043] 3. Through the control module, the washing equipment further processes the detection results of the amount of stains in the washing water collected by the detection module and determines whether to end the washing process. Through the ultraviolet spectrum sensor, accurate detection results of the amount of stains in the washing water are obtained, and then the accurate change rate of the stain amount is obtained, making the timing of deciding to end the washing process more accurate.

[0044] 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

[0045] 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:

[0046] Figure 1 It is a schematic flow chart of a control method of a washing device of the present invention;

[0047] Figure 2 It is a schematic diagram of a cycle flow of a control method for a washing device of the present invention;

[0048] Figure 3 It is a time-collection value experimental data curve diagram of a control method for a washing device of the present invention;

[0049] Figure 4 It is another time-collection value experimental data curve diagram of a control method for washing equipment of the present invention.

[0050] 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

[0051] 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.

[0052] like Figures 1 to 4 As shown, the present invention provides a control method and a washing device for a washing device, wherein the stain amount change rate reflects the change of the stain index over a period of time, and then the timing of ending the washing process is determined by comparing the stain amount change rate with a set threshold, thereby achieving the purpose of accurately controlling the end of the washing process by the washing device.

[0053] Embodiment 1

[0054] like Figures 1 to 4 As shown, this embodiment provides a control method for a washing device, comprising the following steps:

[0055] Step S1, during the washing process of the washing device, obtaining a detection result of the amount of stains in the washing water, and obtaining a first stain index within a first set time period;

[0056] Step S2, obtaining the detection result of the amount of stains in the washing water again, and obtaining a second stain index within a second set time period;

[0057] Step S3, calculating the stain amount change rate according to the first stain index, the second stain index and a preset interval time;

[0058] Step S4: If the rate of change of the amount of dirt is less than or equal to a set threshold, the washing process is terminated.

[0059] Specifically, the first stain index is used to reflect the degree of dirtiness of the washing water within a first set time period, and can be obtained by detecting the amount of stains in the washing water once or multiple times within the first set time period.

[0060] Similarly, the second stain index is used to reflect the degree of dirtiness of the washing water for a second set time period after the first set time period, and can be obtained by detecting the amount of stains in the washing water once or multiple times within the second set time period.

[0061] Specifically, the washing device includes: a detection module, including an ultraviolet spectrum sensor, the ultraviolet spectrum sensor detects the amount of stains in the washing water by ultraviolet absorption spectroscopy; a control module, used to execute steps S1 to S5, and control the washing device to end the washing process. The washing device obtains the detection result of the amount of stains in the washing water through the detection module. The control module is a controller of the washing device.

[0062] The ultraviolet spectrum sensor detects the amount of stains using ultraviolet absorption spectroscopy. The ultraviolet absorption spectroscopy detects the amount of a substance by the corresponding relationship between the 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, laundry detergents, 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 dissolution is detected in real time and accurately, and the washing process is stopped in time when the rate of change does not change significantly, so as to accurately judge the washing state of the clothes and accurately end the washing process when the clothes are clean.

[0063] Therefore, by obtaining the stain amount change rate that reflects the change of the stain index over a period of time, the stain amount change rate is compared with the set threshold to determine the timing of ending the washing process, thereby achieving that the washing device can accurately end the washing process by obtaining the stain index.

[0064] In this embodiment, step S1 specifically includes: performing multiple detections on the amount of stains in the washing water within the first set time period to obtain multiple stain index collection values, and performing calculations on the multiple stain index collection values ​​to obtain the first stain index.

[0065] In this embodiment, step S2 specifically includes: performing multiple detections on the amount of stains in the washing water within the second set time period to obtain multiple stain index collection values, and performing calculations on the multiple stain index collection values ​​to obtain the second stain index.

[0066] By performing calculations on a plurality of collected stain index values, the first stain index, the second stain index and the stain amount change rate are made more accurate.

[0067] In this embodiment, in step S1 / step S2, the washing device detects the amount of stains on the washing water once at equal time intervals within the first set time length / the second set time length to obtain the stain index collection value; the calculation processing is specifically: within the first set time length and the second set time length, the detection results of the amount of stains on the washing water are obtained at equal time intervals to obtain multiple stain index collection values, and the average value of the multiple stain index collection values ​​is calculated.

[0068] The first stain index, the second stain index and the stain amount change rate are further made more accurate.

[0069] Specifically, in a specific embodiment of the present invention, the control module obtains the stain index collection value detected by the detection module once every 2 seconds, takes the average of 5 consecutive stain index collection values, and records it as the first stain index. After obtaining the first stain index, the control module continues to obtain the stain index collection value detected by the detection module once every 2 seconds, takes the average of 5 consecutive collected data, and records it as the second stain index. Furthermore, after the water intake of the washing process is completed, the set initial time length is passed before the data collected by the detection module is obtained. Specifically, the set initial time length is 10 seconds, which can avoid the situation where the washing process ends when the stains have not begun to dissolve in the washing water at the beginning of washing.

[0070] In this embodiment, step S3 is specifically as follows: the stain amount change rate is calculated by the following formula:

[0071]

[0072] Among them, K is the stain amount change rate, X1 is the first stain index, X2 is the second stain index, and T is the preset interval time.

[0073] Specifically, the preset interval time may be an average of the first set time length and the second set time length.

[0074] Furthermore, the preset interval time, the first set duration and the second set duration are all equal.

[0075] Specifically, the control module obtains the detection result of the amount of stains in the washing water through the detection module, and records each stain index collection value obtained by the detection corresponding to the detection time, thereby generating a time-collection value curve with the horizontal axis being the running time of the washing process and the vertical axis being the stain index collection value, such as Figure 3 and Figure 4 As shown, the slope of the curve can more intuitively reflect the change of the stain index over a period of time. More specifically, the first set time, the second set time and the preset interval time are all 10 seconds, which is equal to the total time required for the control module to obtain the data collected by the detection module once every 2 seconds and to obtain the collected data 5 times in a row.

[0076] Detailed, such as Figure 3 and Figure 4The time-collected value curve shown is a line connecting the points where the soil index collection value is obtained once every 2 seconds. When the first set time is 6 seconds, there are 3 points for collecting the soil index value, and the horizontal coordinate of the first soil index is the same as that of the second point, and the vertical coordinate is the average value of the vertical coordinates of the three points; when the first set time is 10 seconds, the horizontal coordinate of the first soil index is the same as that of the third point, and the vertical coordinate is the average value of the vertical coordinates of the five points; the value of the second soil index on the curve is similar, and the soil amount change rate is the line connecting the first soil index and the second soil index. Preferably, the preset interval time, the first set time and the second set time are equal, so that the soil amount change rate can better reflect the change of the curve. If the first set time is not equal to the second set time, the preset interval time is the average of the first set time and the second set time.

[0077] Detailed, such as Figure 3 and Figure 4 The portion between the two dotted lines of the time-collection value curve shown is a relatively flat portion, and the curves before and after this relatively flat portion have large fluctuations. If the preset interval time is too small, the two points are closer and the change in slope is smaller, and this relatively flat portion will be identified as the rate of change of the amount of stains being less than or equal to the set threshold, and the clothes have been washed, and the washing process will be mistakenly ended when there are still stains being dissolved. If the preset interval time is too large, the two points are farther apart and the change in slope is larger, and the rate of change of the amount of stains cannot be accurately reflected. Therefore, by Figure 3 and Figure 4 From the time-collection value curve and related experimental data, it can be concluded that the appropriate first set time length, the second set time length and the preset interval time are 10 seconds.

[0078] In this embodiment, in step S4, if the stain amount change rate is greater than the set threshold, the following steps are performed: step S5, assigning the value of the second stain index to the first stain index, and then returning to step S2.

[0079] By returning to step S2 through step S5, the rate of change of the amount of stains can be continuously acquired and the timing of ending the washing process can be continuously determined.

[0080] In this embodiment, if the running time of the washing process exceeds the maximum washing time, the washing process is terminated.

[0081] Specifically, the judgment that the running time exceeds the maximum washing time is independent of the running of steps S1 to S5, and the running of steps S1 to S5 can be interrupted at any time point during the washing process, and the washing process can be terminated.

[0082] In a specific implementation of this embodiment, the maximum washing time is 30 minutes.

[0083] If the running time of the washing process exceeds the maximum washing time, the washing process is terminated, which avoids the situation where the stain amount change rate cannot be less than or equal to the set threshold due to stains that cannot be washed clean, and also prevents the long-term running of the washing process from causing the running motor of the washing equipment to overheat or the clothes to be damaged.

[0084] In this embodiment, Figure 2 As shown, the specific process of the control method of the washing device is: the washing device starts a washing process, and 10 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 stain index collection value, and executes steps S1 to S5. When the washing process is not ended by step S5, a cycle of steps S2 to S5 is started, until the running time of the washing process exceeds the maximum washing time, or the judgment condition of step S4 is met, and the washing process is ended.

[0085] In this embodiment, the change rate of the stain amount reflects the change of the stain index over a period of time. The comparison between the stain amount change rate and the set threshold value determines the timing of terminating the washing process, thereby enabling the washing device to accurately terminate the washing process by obtaining the stain index. Through the control module, the washing device further processes the detection result of the washing water stain amount collected by the detection module and determines whether to terminate the washing process. Through the ultraviolet spectrum sensor, the accurate detection result of the washing water stain amount is obtained, and then the accurate stain amount change rate is obtained, so that the timing of determining the end of the washing process is more accurate.

[0086] Embodiment 2

[0087] like Figures 1 to 4 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.

[0088] 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 the washing water by ultraviolet absorption spectroscopy; a control module, used to execute steps S1 to S5, obtain the first stain index, the second stain index and the stain amount change rate according to the amount of stains in the washing water detected by the detection module, and then control whether to end the washing process of the washing device according to the stain change rate.

[0089] 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 a substance by the corresponding relationship between the substance and its ultraviolet visible spectrum when the substance absorbs light of a specific wavelength to reach 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, laundry detergents 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 dissolution is detected in real time and accurately, and the washing process is stopped in time when the rate of change does not change significantly, so as to accurately judge the washing state of the clothes and accurately end the washing process when the clothes are washed.

[0090] In this embodiment, the control module is a controller of the washing equipment, which has the function of storing the collected values ​​of the ultraviolet spectrum sensor and generating a time-collected value curve in real time. The controller is equipped with the algorithm of steps S1 to S5, which is used to further process and logically judge the collected values ​​obtained from the self-detection module, so that it can be better used to reflect the changes in the stain index over a period of time and better control the end timing of the washing process.

[0091] Therefore, in this embodiment, through the control module, the washing equipment further processes the detection results of the amount of stains in the washing water collected by the detection module and determines whether to end the washing process. Through the ultraviolet spectrum sensor, accurate detection results of the amount of stains in the washing water are obtained, and then the accurate change rate of the stain amount is obtained, so that the timing of deciding to end the washing process is more accurate.

[0092] 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: include: Step S1, during the washing process of the washing device, obtaining a detection result of the amount of stains in the washing water, and obtaining a first stain index within a first set time period; Step S2, obtaining the detection result of the amount of stains in the washing water again, and obtaining a second stain index within a second set time period; Step S3, calculating the stain amount change rate according to the first stain index, the second stain index and a preset interval time; Step S4: If the rate of change of the amount of dirt is less than or equal to a set threshold, the washing process is terminated.

2. A control method for a washing device according to claim 1, characterized in that: Step S1 specifically includes: The amount of stains in the washing water is detected multiple times within the first set time period to obtain multiple stain index collection values, and the multiple stain index collection values ​​are processed by calculation to obtain the first stain index.

3. A control method for a washing device according to claim 1, characterized in that: Step S2 specifically includes: The amount of stains in the washing water is detected multiple times within the second set time period to obtain multiple stain index collection values, and the multiple stain index collection values ​​are processed by calculation to obtain the second stain index.

4. A control method for a washing device according to claim 2 or 3, characterized in that: In step S1 / step S2, the washing device detects the amount of stains in the washing water once at equal time intervals within the first set time length / the second set time length to obtain the stain index collection value; The calculation processing is specifically: calculating an average value of the multiple stain index collection values.

5. A control method for a washing device according to claim 1, characterized in that: In step S3, The stain amount change rate is calculated by the following formula: Wherein, K is the stain amount change rate, X1 is the first stain index, X2 is the second stain index, and T is the preset interval time.

6. A control method for a washing device according to claim 1, characterized in that: The preset interval time, the first set duration and the second set duration are all equal.

7. A control method for a washing device according to any one of claims 1, 2, 3, 5 and 6, characterized in that: In step S4, if the stain amount change rate is greater than the set threshold, the following steps are performed: Step S5, assigning the value of the second stain index to the first stain index, and then returning to step S2.

8. A method for controlling a washing device according to any one of claims 1, 2, 3, 5 and 6, characterized in that: If the running time of the washing process exceeds the maximum washing time, the washing 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 by ultraviolet absorption spectroscopy; The control module is used to execute steps S1 to S5, obtain the first stain index, the second stain index and the stain amount change rate according to the amount of stain on the washing water detected by the detection module, and then control whether the washing device ends the washing process according to the stain change rate.

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