CN110735284A - Washing machine and clothes washing control method thereof - Google Patents
Washing machine and clothes washing control method thereof Download PDFInfo
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- CN110735284A CN110735284A CN201810792125.0A CN201810792125A CN110735284A CN 110735284 A CN110735284 A CN 110735284A CN 201810792125 A CN201810792125 A CN 201810792125A CN 110735284 A CN110735284 A CN 110735284A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention provides washing machines and a clothes washing control method thereof, wherein the washing machine comprises an outer barrel, an inner barrel and a hyperspectral imaging device, wherein the inner barrel is rotatably arranged in the outer barrel and used for accommodating clothes to be washed, the hyperspectral imaging device is used for shooting a clothes placement area of the inner barrel, the clothes washing control method comprises the steps of determining a washing scheme according to the material of the clothes to be washed, the washing scheme at least comprises an initial input amount of a detergent and a washing target concentration, controlling a detergent input device of the washing machine to input the detergent according to the initial input amount, starting the hyperspectral imaging device to shoot a washing mixed liquid and obtaining a hyperspectral image of the washing mixed liquid shot by the hyperspectral imaging device, determining the detergent concentration in the washing mixed liquid according to hyperspectral image characteristic information of the washing mixed liquid, and controlling the detergent input device to increase the input amount of the detergent under the condition that the detergent concentration in the washing mixed liquid is lower than the washing target concentration, so that the detergent concentration meets the washing.
Description
Technical Field
The present invention relates to a washing machine, and more particularly, to a washing machine and a laundry washing control method thereof.
Background
With the improvement of living standard and the drive of consumer upgrading, the consumer's orientation of household appliances is changing, and the initial functional requirements are changing to the pursuit of quality of life. The washing machine gradually changes from the initial pure washing to a home washing center, which also provides a new challenge for the intelligent washing machine, and of course, provides a chance for the application of various intelligent identification technologies on washing machine products. By using an intelligent identification technology, intelligent washing and protection of clothes on a washing machine is realized, and the development trend of intelligent washing machines is also reached.
Some current washing machines are provided with a detergent feeding device capable of automatically adding detergent, and a certain amount of detergent can be fed according to the setting of a user, however, in actual use, due to the difference between clothes and washing, the concentration of the fed detergent cannot reach the set target, and the washing effect is affected.
Disclosure of Invention
aims to provide washing machines which enable washing to meet washing requirements and avoid insufficient detergent feeding and a clothes washing control method thereof.
The object of the present invention is to provide washing machines with steps, which can automatically determine and execute the washing scheme, and reduce the user's operation.
The washing control method comprises the steps of determining a washing scheme according to the material of clothes to be washed, wherein the washing scheme at least comprises an initial input amount of a detergent and a washing target concentration, controlling a detergent input device of the washing machine to input the detergent according to the initial input amount, starting the hyperspectral imaging device to shoot a washing mixed liquid and obtaining a hyperspectral image of the washing mixed liquid shot by the hyperspectral imaging device, determining the detergent concentration of the washing mixed liquid according to hyperspectral image characteristic information of the washing mixed liquid, and controlling the detergent input device to increase the input amount of the detergent under the condition that the detergent concentration of the washing mixed liquid is lower than the washing target concentration.
Optionally, the step of determining the detergent concentration of the washing mixed liquor according to the hyperspectral image characteristic information of the washing mixed liquor comprises: selecting a plurality of pixel points in different areas of a hyperspectral image of the washing mixed liquid, and respectively acquiring spectral data of the pixel points; extracting a spectrum curve of the spectrum data of the plurality of pixel points; respectively identifying the spectral curves of the spectral data of the multiple pixel points by using a preset detergent concentration detection model to obtain the corresponding detergent concentrations of the multiple pixel points, wherein the detergent concentration detection model is obtained by training the spectral curves of washing mixed liquor with different detergent concentrations in advance; and comprehensively judging the detergent concentrations corresponding to the multiple pixel points by using a chemometrics algorithm to obtain the detergent concentration of the washing mixed liquid.
Optionally, a rinse target concentration is further included in the washing protocol, and the control method further includes: after the washing machine finishes rinsing, starting the hyperspectral imaging device to shoot the rinsing waste liquid, and acquiring a hyperspectral image of the rinsing waste liquid shot by the hyperspectral imaging device; determining the concentration of a detergent in the rinsing waste liquid according to the hyperspectral image characteristic information of the rinsing waste liquid; and controlling the washing machine to perform rinsing again under the condition that the concentration of the detergent in the rinsing waste liquid is higher than the rinsing target concentration.
Optionally, the step of determining the detergent concentration of the rinsing waste liquid according to the hyperspectral image characteristic information of the rinsing waste liquid comprises: selecting a plurality of pixel points in different areas of a hyperspectral image of the rinsing waste liquid, and respectively acquiring spectral data of the pixel points; extracting a spectrum curve of the spectrum data of the plurality of pixel points; respectively identifying the spectral curves of the spectral data of the multiple pixel points by using a preset detergent concentration detection model to obtain the corresponding detergent concentrations of the multiple pixel points, wherein the detergent concentration detection model is obtained by training the spectral curves of the rinsing waste liquid with different detergent concentrations in advance; and comprehensively judging the detergent concentrations corresponding to the pixel points by using a chemometrics algorithm to obtain the detergent concentration of the rinsing waste liquid.
Optionally, the step of determining the washing scheme according to the material of the laundry to be washed includes: acquiring a washing starting signal of the washing machine; controlling the hyperspectral imaging device to shoot, and acquiring a hyperspectral image of the clothes to be washed shot by the hyperspectral imaging device; extracting characteristic information of a hyperspectral image of the clothes to be washed, and identifying the material of the clothes to be washed according to the characteristic information; and configuring a washing scheme according to the material of the clothes to be washed, and controlling a washing execution system of the washing machine to execute the washing scheme.
Optionally, the characteristic information of the hyperspectral image of the laundry to be washed includes a characteristic peak of the spectral data, and the step of identifying the material of the laundry to be washed according to the characteristic information includes: and identifying the characteristic peak of the spectral data by using a preset material identification model to obtain a material type corresponding to the characteristic peak of the spectral data, wherein the material identification model is obtained in advance according to various clothes materials and the characteristic peak of the corresponding spectral data through training.
Optionally, the hyperspectral image of the laundry to be washed further includes image data, and the step of extracting the characteristic information of the hyperspectral image of the laundry to be washed further includes: distinguishing the image data of the clothes to be washed by using a neural network algorithm, and determining the material variety and quantity of the clothes to be washed; respectively extracting the characteristic information of the hyperspectral images of the clothes to be washed made of various materials.
Optionally, in the case that the laundry contains a plurality of materials, the step of configuring the washing scheme according to the materials of the laundry includes: selecting a shuffling scheme from corresponding washing schemes of multiple materials, wherein the shuffling scheme meets the condition of avoiding the damage of the multiple materials; and in case that there is no shuffling scheme for the corresponding washing schemes of the plurality of materials, outputting a prompt message for prompting that the laundry to be washed cannot be shuffled.
Optionally, the washing protocol further specifies any or more of washing time, washing intensity, and detergent type.
According to another aspects of the present invention, there are also provided kinds of washing machines, including an outer tub for containing washing water, an inner tub rotatably disposed in the outer tub for containing laundry to be washed, a hyperspectral imaging device disposed in the outer tub with a photographing direction configured to face the inner tub for photographing a hyperspectral image of a washing mixture, and a controller including a memory in which a computer program is stored and a processor, the computer program when executed by the processor implementing any of the kinds of laundry washing control methods described above.
According to the washing machine and the clothes washing control method thereof, the hyperspectral imaging device is used for shooting the washing mixed liquid to obtain the hyperspectral image, the hyperspectral image is used for identifying the content (concentration) of the detergent, and the detergent is correspondingly adjusted, so that the washing condition better meets the requirements of clothes materials, and the problem of incomplete washing caused by insufficient detergent feeding can be avoided.
, the washing machine and the method can also use the hyperspectral image of the rinsing waste liquid to identify the content (concentration) of the detergent by the hyperspectral image to decide whether to continue rinsing, so as to reasonably control the rinsing frequency, avoid the excessive rinsing frequency and water waste, or the insufficient rinsing frequency and residual detergent in the clothes.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Reference will now be made in detail to the specific embodiments of the present invention, which are illustrated by way of example and not by way of limitation in the accompanying figures in which like reference numerals refer to the same or similar parts or features.
Fig. 1 is a schematic external view of washing machines according to an embodiment of the present invention;
fig. 2 is an internal structure view of a washing machine according to embodiments of the present invention;
fig. 3 is a schematic block diagram of control of a washing machine according to embodiments of the present invention;
fig. 4 is a schematic view of a laundry control method of a washing machine according to embodiments of the present invention;
fig. 5 is a general flow diagram of the washing machine according to embodiments of the present invention for washing laundry;
FIG. 6 is a flow chart of detergent replenishment of a washing machine according to embodiments of the present invention, and
fig. 7 is a flowchart of adjusting the number of times of rinsing in the washing machine according to embodiments of the present invention.
Detailed Description
The embodiment firstly provides washing machines 10, and by means of the hyperspectral image analysis technology, the concentration of the detergent is automatically analyzed, so that the condition that the washing is not clean due to insufficient detergent feeding is avoided.
Fig. 1 is a schematic external view of a washing machine 10 according to embodiments of the present invention, fig. 2 is a schematic internal structure of the washing machine 10 according to embodiments of the present invention, and fig. 3 is a schematic control block diagram of the washing machine 10 according to embodiments of the present invention.
The washing machine 10 of the present embodiment may generally include an outer tub 110, an inner tub 120, a hyperspectral imaging device 200, a controller 300, and a washing execution system 400. the washing machine 10 of the present embodiment is described by taking a front-loading drum washing machine as an example, and since the washing machine of other configurations is different only in the constructions of the inner tub 120, the outer tub 110, and the supporting manner, the working principle and other structures are basically , and persons skilled in the art can apply the solution of the present embodiment to washing machines of other configurations on the basis of understanding the solution of the present embodiment applied to the front-loading drum washing machine.
An outer tub 110 of the washing machine 10 for holding washing water; the inner tub 120 is rotatably provided in the outer tub 110 for accommodating laundry to be washed. The front of the inner tub 120 may have an opening for laundry to be put in. The inner tub 120 has a plurality of lifting ribs therein, and is driven by the motor 430 and the transmission mechanism to rotate regularly, so that the laundry is rolled and kneaded in the inner tub 120, thereby achieving the purpose of washing. The washing machine 10 can be controlled to perform washing operations such as water feeding, detergent feeding, washing, warming, rinsing, draining, and dewatering. Since the specific washing structure is well known to those skilled in the art, it will not be described herein.
In the washing machine 10 of the present embodiment, the hyperspectral imaging apparatus 200 photographs the laundry placement area of the inner tub 120, and may photograph a hyperspectral image of a washing mixture (rinsing waste liquid) in a washing process for identifying the detergent concentration. The controller 300 may analyze the hyperspectral image obtained by photographing to obtain the concentration of the detergent and control the addition and rinsing times of the detergent.
In addition, the materials of the laundry are more and more abundant, and the laundry of each material has different washing requirements (for example, different requirements on washing time, washing strength, detergent addition amount, rinsing times and dewatering strength) due to the characteristics of the material. The hyperspectral imaging device 200 can be used for shooting the clothes placing area of the inner barrel 120 before washing, the controller 300 can analyze the hyperspectral image obtained by shooting to obtain a washing scheme and control the washing execution system 400 to execute the washing scheme, so that the material of the washed clothes can be accurately determined, the determined washing scheme is adaptive to the washed clothes, the pertinence of the washing scheme is stronger, the washing efficiency is improved, and the damage caused by washing abrasion of the clothes is effectively reduced on the premise of ensuring the washing is clean.
The hyperspectral imaging apparatus 200 may be disposed at an upper portion of the opening (i.e., an upper portion of the inner side of the body 130), and a photographing direction thereof is configured to face the laundry placement area of the inner tub 120 (i.e., a middle-lower area of the inner tub 120), and is configured to photograph a hyperspectral image of the washing mixture (the rinsing waste liquid) and the laundry to be washed.
alternative arrangement structure is that the hyperspectral imaging device 200 is installed at the outer barrel 110 near the body 130, and the hyperspectral imaging device 200 is also provided with a transparent cover 210 at the installation position to isolate the hyperspectral imaging device 200 from the inner barrel 120.
The side of the transparent cover 210 facing the inner barrel 120 is coated with a super-hydrophobic nano coating to avoid water stains affecting the shooting effect of the hyperspectral imaging device 200, the super-hydrophobic nano coating can be prepared mainly based on acrylic polyurethane, is good in wear resistance and excellent in mechanical property, has good tolerance to strong acid and strong alkaline media, and in the experimental stage, the contact angle of the super-hydrophobic nano coating is still larger than 150 degrees after the super-hydrophobic nano coating is polished for 300 times by abrasive paper, so that the hydrophobic effect is good.
By using the super-hydrophobic nano coating, the transparent cover 210 does not form water stain accumulation, and the requirement of the hyperspectral imaging device 200 for shooting in the washing machine 10 is met.
Since the light inside the washing machine 10 cannot satisfy the photographing requirement, the washing machine 10 further includes: and a broad spectrum light source 220, also disposed at the upper portion of the opening, for providing photographing light to the hyperspectral imaging apparatus 200.
The broad spectrum light source 220 may comprise integrated LEDs, the light emission spectrum range of which is set to be up to 400 to 2400nm in this embodiment or more integrated LEDs may be provided, for example, the integrated LEDs may be provided around the hyperspectral imaging device 200 and shielded by the transparent cover 210.
In other embodiments, the broad spectrum light source 220 may be separately disposed from the hyperspectral imager 200, for example, on both sides of the upper portion of the body 130 of the washing machine 10 .
The hyperspectral image shot by the hyperspectral imaging device 200 can include image data and spectral data, for example, each pixel point can include an image pixel element and a spectral wavelength element of the pixel, that is, each pixel point is multivariate data sets and includes a plurality of image pixel element data and sets of spectral wavelength elements, so the hyperspectral data simultaneously obtains continuous spectral data of each pixel point and continuous image data of each spectral band.
The controller 300 includes a memory 310 and a processor 320, wherein the memory 310 stores a computer program, and the computer program can process the hyperspectral image, automatically determine a washing scheme, and control the washing execution system 400 to complete the washing scheme when being executed by the processor 320, thereby implementing an automatic washing function of the washing machine 10. The laundry control method of the washing machine 10 of the present embodiment will be described below.
Fig. 4 is a schematic diagram of a laundry control method of a washing machine according to embodiments of the present invention, which is performed by the processor 320 of the controller 300 of the washing machine 10 in the above-described embodiments, the laundry control method of the washing machine may include:
step S402, determining a washing scheme according to the material of the clothes to be washed, and controlling a detergent putting device 410 of the washing machine 10 to put detergent according to an initial putting amount, wherein the washing scheme at least comprises the initial putting amount and a washing target concentration of the detergent;
step S404, starting the hyperspectral imaging device 200 to shoot the washing mixed liquid, and acquiring a hyperspectral image of the washing mixed liquid shot by the hyperspectral imaging device 200;
and S406, determining the concentration of the detergent in the washing mixed liquor according to the hyperspectral image characteristic information of the washing mixed liquor. Because the detergent of the washing mixed liquid is possibly uneven, when the concentration of the detergent in the washing mixed liquid is determined, a plurality of pixel points can be selected in different areas of a hyperspectral image of the washing mixed liquid, and spectral data of the pixel points are respectively obtained; extracting a spectrum curve of the spectrum data of the plurality of pixel points; respectively identifying the spectral curves of the spectral data of the multiple pixel points by using a preset detergent concentration detection model to obtain the corresponding detergent concentrations of the multiple pixel points, wherein the detergent concentration detection model is obtained by training the spectral curves of washing mixed liquor with different detergent concentrations in advance; and comprehensively judging the detergent concentrations corresponding to the multiple pixel points by using a chemometrics algorithm to obtain the detergent concentration of the washing mixed liquid.
In the washing mixed liquid, different substances have unique absorption effect on light in a specific wavelength range, and different transmission conditions can occur on light with different wavelengths, so that the spectral characteristics of various substances are different, the washing mixed liquid with different concentrations and a spectral curve can train a sample, and a detergent concentration detection model is obtained for identifying the detergent concentration. In addition, the corresponding detergent concentration at a plurality of pixel points is comprehensively judged through a chemometrics algorithm, so that the problem of non-uniformity is avoided.
In step S408, when the detergent concentration in the washing liquid mixture is lower than the target washing concentration, the detergent supply device 410 is controlled to increase the amount of detergent to be supplied.
The washing scheme can also comprise a rinsing target concentration, after the washing machine finishes rinsing, the hyperspectral imaging device 200 is started to shoot the rinsing waste liquid, and a hyperspectral image of the rinsing waste liquid shot by the hyperspectral imaging device 200 is obtained; determining the concentration of a detergent in the rinsing waste liquid according to the hyperspectral image characteristic information of the rinsing waste liquid; in the case where the detergent concentration in the rinse waste liquid is higher than the rinse target concentration, the washing machine 10 is controlled to perform rinsing again.
The method comprises the steps of determining the detergent concentration of rinsing waste liquid according to hyperspectral image characteristic information of the rinsing waste liquid and determining the detergent concentration of washing mixed liquid basically , namely selecting a plurality of pixel points in different areas of a hyperspectral image of the rinsing waste liquid, respectively obtaining spectral data of the pixel points, extracting spectral curves of the spectral data of the pixel points, respectively identifying the spectral curves of the spectral data of the pixel points by using a preset detergent concentration detection model to obtain the detergent concentrations corresponding to the pixel points, wherein the detergent concentration detection model is obtained by training the spectral curves of the rinsing waste liquid with different detergent concentrations in advance, and comprehensively judging the detergent concentrations corresponding to the pixel points by using a chemometrics algorithm to obtain the detergent concentrations of the rinsing waste liquid, so that inaccurate detection caused by uneven detergent is avoided.
In step S402, before the laundry to be washed is put into the washing machine 10 and no water is discharged, the washing scheme may be automatically determined by means of the hyperspectral image analysis technique.
The process of determining the washing scheme comprises the steps of controlling the hyperspectral imaging device 200 to shoot and acquiring the hyperspectral image of the clothes to be washed shot by the hyperspectral imaging device 200, for example, the process of controlling shooting can comprise the steps of acquiring an off signal of the washing machine 10, detecting whether the clothes to be washed are put in or not after the washing machine 10 is confirmed to be turned off, and controlling the hyperspectral imaging device 200 to shoot the hyperspectral image under the condition that the clothes to be washed are confirmed to be put in.
The process of acquiring the off signal of the washing machine 10 may include controlling the hyperspectral imaging device 200 to photograph the clothes placement area to obtain image data of the clothes placement area, determining whether clothes exist in the clothes placement area according to the image data, if the clothes exist, comparing the image data with washing history data to determine whether the clothes in the clothes placement area are the clothes washed before opening , and if the clothes washed before opening are not the clothes washed, determining to put the clothes to be washed.
When the hyperspectral imaging device 200 is controlled to shoot, the hyperspectral light source corresponding to the hyperspectral imaging device can be started at the same time to provide the required hyperspectral light for shooting.
After the hyperspectral image of the clothes to be washed is obtained, extracting the characteristic information of the hyperspectral image, and identifying the material of the clothes to be washed according to the characteristic information; the extracting of the characteristic information of the hyperspectral image may include a characteristic peak of spectral data in the hyperspectral image, and the process of identifying the material of the laundry by using the characteristic peak of the spectral data may include: and identifying the characteristic peak of the spectral data by using a preset material identification model to obtain a material type corresponding to the characteristic peak of the spectral data, wherein the material identification model is obtained in advance according to various clothes materials and the characteristic peak of the corresponding spectral data through training. When the material identification model is trained, various materials such as wool, cotton fabrics, blended fabrics, silk, terylene, chinlon, hemp fabrics and the like and spectral data thereof can be combined with a chemometrics algorithm to form a training sample. For example: the spectral characteristic peak of the pure cotton material is 1950 nm; the spectral characteristic peak of the chemical fiber fabric is 1400 nm.
Since the number of the clothes to be washed may be multiple and the material thereof may be multiple, the step of extracting the characteristic information of the hyperspectral image may further include: carrying out image recognition on the image data by utilizing a neural network algorithm to determine different extraction areas of the image data; and respectively extracting characteristic peaks of the spectral data of each region from the extraction regions so as to respectively determine the clothes material of each region. For example, the image data is subjected to image recognition by using a neural network algorithm, so that regions (including regions with different colors and regions with different light intensities) presenting different image characteristics in the clothes placement region can be recognized, the regions presenting different image characteristics are respectively used as extraction regions, characteristic peaks of the spectral data are respectively extracted, and the clothes material is respectively determined according to the characteristic peaks of the spectral data of the regions.
The washing pattern may then be configured according to the material of the laundry to be washed, and the washing execution system 400 of the washing machine 10 may be controlled to execute the washing pattern. Under the condition that the clothes to be washed contain multiple materials, the alternative scheme can be selected according to the corresponding washing scheme of the multiple materials, and the alternative scheme meets the condition of avoiding the damage of the multiple materials. The alternative washing scheme is selected as the scheme with the least damage to various clothes to be washed or the scheme with the shortest washing time.
Because some clothes made of materials cannot be shuffled, for example, the cleaning requirements of real silk materials and some chemical fiber materials are different, and meanwhile, the cleaning of all the clothes cannot be met, and the clothes can be damaged. Therefore, prompt information can be output under the condition that the materials of the clothes to be washed are not suitable for being washed at the same time or alternative washing schemes cannot be determined, so that a user can be prompted to intervene.
And in the case that no alternative scheme exists in the corresponding washing schemes made of various materials, outputting prompt information for prompting that the clothes to be washed cannot be shuffled. In the case that the washing machine 10 of the present embodiment is provided with the display screen 500, an interface corresponding to a washing scheme may be output by using the display screen 500, for example, the prompt information may include information of the material of the clothes that cannot be washed at the same time, an operation prompt for prompting the user to take out the clothes, and the like.
The washing execution system 400 may include a detergent dispenser 410 for dispensing detergent into the outer tub 110 during a washing process, a water inlet 420 for discharging water into the outer tub 110 during the washing process, a driving motor 430 for driving the inner tub 120 to rotate, a water discharge 440, etc. the washing execution system 400 may perform the controller 300 to determine a washing pattern and automatically complete the washing process, and the above-described steps S402 to S406 may be performed during the washing process to adjust the amount of detergent dispensed, and the number of times of rinsing may be adjusted further in step .
Fig. 5 is a schematic diagram illustrating the overall flow of the washing process of the washing machine 10 according to embodiments of the present invention, wherein the washing process comprises:
step S502, starting the washing machine 10;
step S504, controlling the hyperspectral imaging device 200 to shoot to obtain a hyperspectral image of the clothes to be washed;
step S506, identifying the material of all the clothes to be washed;
step S508, determining a washing scheme matched with the material, and if the material has the condition that the materials cannot be shuffled, reminding a user;
step S510, draining water and adding detergent according to a washing scheme;
step S512, shooting a hyperspectral image of the washing mixed liquid, identifying the detergent concentration of the washing mixed liquid, judging whether the detergent needs to be supplemented or not, and if the detergent needs to be supplemented, adding the detergent;
step S514, washing and rinsing processes are carried out. The number and intensity of washes and the number and intensity of rinses are determined by the wash protocol.
And step S516, shooting a hyperspectral image of the rinsing waste liquid, identifying the detergent concentration of the rinsing waste liquid, judging whether the rinsing waste liquid is rinsed completely, and if not, increasing the rinsing.
Step S518, the user is reminded of the end of washing.
After the laundry is put into the inner tub 120, the washing machine 10 is started, the broad spectrum light source 220 and the hyperspectral imaging device are started, the hyperspectral image of the laundry is obtained by shooting, and then the image data and the spectrum data are respectively extracted. The data can be used for identifying the material quality. After identification, a washing protocol consistent with the material is determined. The washing course sets washing time, washing intensity, detergent addition amount and rinsing times.
After the washing scheme is determined, water is automatically drained and detergent is added, the condition that the washing requirement is met probably due to the fact that the amount of the added detergent is used, then the concentration of the detergent can be detected by means of a hyperspectral imaging device, and if the concentration of the detergent is not enough, the detergent amount is added again until the washing requirement is met.
And before the washing is finished, detecting the detergent concentration of the rinsing waste liquid by using the hyperspectral imaging device again, finishing the washing process if the detergent concentration is small enough, and continuing rinsing until the detergent concentration is small enough to finish the washing if the detergent concentration is too large.
Fig. 6 is a flow chart of detergent replenishment of the washing machine 10 according to embodiments of the present invention, the flow chart includes:
step S602, washing is started, water is discharged, and a detergent is added;
step S604, acquiring a hyperspectral image of the washing mixed liquor;
step S606, selecting a plurality of pixel points in the hyperspectral image, and respectively calling spectral data of each pixel point;
step S608, analyzing the spectrum curve of each pixel point, and comprehensively analyzing to obtain the concentration of the detergent;
step S610, judging whether the concentration of the detergent is lower (smaller) than the washing target concentration, if so, supplementing the detergent, and reacquiring a hyperspectral image of the washing mixed liquid;
in step S612, when the detergent concentration satisfies the target washing concentration, washing is started.
In the above process, after the washing machine 10 automatically feeds water, a predetermined amount of detergent is added and mixed with the water. Starting the hyperspectral imaging device 200, shooting hyperspectral data of the washing mixed liquid, acquiring data of a plurality of pixel points on an image simultaneously due to the fact that the detergent is not uniformly mixed at the beginning of washing, and comprehensively analyzing and calculating the concentration of the detergent by using a chemometrics algorithm according to respective spectral data so as to judge whether the concentration value meets the washing requirement. If the concentration of the detergent is too low, the detergent is added until the concentration requirement of the detergent is met, and then a washing program is started to wash the clothes.
Fig. 7 is a flowchart of the washing machine 10 adjusting the number of times of rinsing according to embodiments of the present invention, the flowchart includes:
in step S702, the rinsing is completed,
step S704, acquiring a hyperspectral image of the washing mixed liquor;
step S706, selecting a plurality of pixel points in the hyperspectral image, and respectively calling spectral data of each pixel point;
step S708, analyzing the spectrum curve of each pixel point, and comprehensively analyzing to obtain the concentration of the detergent of the rinsing waste liquid;
step S710, judging whether the concentration of the detergent is higher (larger) than the rinsing target concentration, if so, rinsing again
In step S712, the rinsing is terminated after the detergent concentration is lower than the rinsing target concentration.
Executing the flow, and acquiring a hyperspectral image of the washing mixed liquid and generating a spectrogram corresponding to the hyperspectral image when water is not drained after rinsing is finished each time; comparing the detected concentration with a rinsing target concentration according to a preset rinsing target concentration as a condition for stopping rinsing; and when the detected concentration is greater than the rinsing target concentration, rinsing again after the washing water is discharged until the detected concentration meets the requirement.
The washing machine 10 and the clothes washing control method thereof in the embodiment utilize the hyperspectral imaging device 200 to shoot the washing mixed liquid to obtain the hyperspectral image, utilize the hyperspectral image to identify the content (concentration) of the detergent, and correspondingly adjust the detergent, so that the washing condition better meets the requirements of clothes materials, and the problem of incomplete washing caused by insufficient detergent feeding can be avoided.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
- A laundry control method of washing machines, the washing machine includes an outer tub, an inner tub rotatably provided in the outer tub for accommodating laundry to be washed, and a hyperspectral imaging device for photographing a laundry placing area of the inner tub, and the laundry control method includes:determining a washing scheme according to the material of the clothes to be washed, wherein the washing scheme at least comprises the initial input amount of a detergent and the washing target concentration;controlling a detergent putting device of the washing machine to put detergent according to the initial putting amount;starting the hyperspectral imaging device to shoot the washing mixed liquid, and acquiring a hyperspectral image of the washing mixed liquid shot by the hyperspectral imaging device;determining the concentration of a detergent in the washing mixed liquor according to the hyperspectral image characteristic information of the washing mixed liquor;and controlling the detergent feeding device to increase the feeding amount of the detergent under the condition that the concentration of the detergent in the washing mixed liquid is lower than the washing target concentration.
- 2. The method of claim 1, wherein determining the detergent concentration of the wash mixture based on the hyperspectral image characteristic information of the wash mixture comprises:selecting a plurality of pixel points in different areas of the hyperspectral image of the washing mixed liquid, and respectively acquiring spectral data of the pixel points;extracting a spectrum curve of the spectrum data of the plurality of pixel points;respectively identifying the spectral curves of the spectral data of the pixel points by using a preset detergent concentration detection model to obtain the corresponding detergent concentrations of the pixel points, wherein the detergent concentration detection model is obtained by training the spectral curves of washing mixed liquor with different detergent concentrations in advance;and comprehensively judging the detergent concentrations corresponding to the pixel points by using a chemometrics algorithm to obtain the detergent concentration of the washing mixed liquid.
- 3. The method of claim 1, whereinA rinse target concentration is also included in the washing protocol, and the control method further includes:after the washing machine finishes rinsing, starting the hyperspectral imaging device to shoot rinsing waste liquid, and acquiring a hyperspectral image of the rinsing waste liquid shot by the hyperspectral imaging device;determining the concentration of a detergent in the rinsing waste liquid according to the hyperspectral image characteristic information of the rinsing waste liquid;and controlling the washing machine to perform rinsing again under the condition that the concentration of the detergent in the rinsing waste liquid is higher than the rinsing target concentration.
- 4. The method according to claim 3, wherein the step of determining the detergent concentration of the rinsing waste liquid according to the hyperspectral image characteristic information of the rinsing waste liquid comprises:selecting a plurality of pixel points in different areas of the hyperspectral image of the rinsing waste liquid, and respectively acquiring spectral data of the pixel points;extracting a spectrum curve of the spectrum data of the plurality of pixel points;respectively identifying the spectral curves of the spectral data of the pixel points by using a preset detergent concentration detection model to obtain the corresponding detergent concentrations of the pixel points, wherein the detergent concentration detection model is obtained by training the spectral curves of the rinsing waste liquid with different detergent concentrations in advance;and comprehensively judging the detergent concentrations corresponding to the pixel points by using a chemometrics algorithm to obtain the detergent concentration of the rinsing waste liquid.
- 5. The method according to any of claims 1 to 4 and , wherein the step of determining a washing program based on the material of the laundry item comprises:acquiring a washing starting signal of the washing machine;controlling the hyperspectral imaging device to shoot, and acquiring a hyperspectral image of the clothes to be washed shot by the hyperspectral imaging device;extracting characteristic information of the hyperspectral image of the clothes to be washed, and identifying the material of the clothes to be washed according to the characteristic information;and configuring a washing scheme according to the material of the clothes to be washed, and controlling a washing execution system of the washing machine to execute the washing scheme.
- 6. The method of claim 5, whereinThe characteristic information of the hyperspectral image of the clothes to be washed comprises a characteristic peak of spectral data, and the step of identifying the material of the clothes to be washed according to the characteristic information comprises the following steps:and identifying the characteristic peak of the spectral data by using a preset material identification model to obtain a material type corresponding to the characteristic peak of the spectral data, wherein the material identification model is obtained in advance according to various clothes materials and the characteristic peak of the corresponding spectral data through training.
- 7. The method of claim 6, whereinThe hyperspectral image of the clothes to be washed further comprises image data, and the step of extracting the characteristic information of the hyperspectral image of the clothes to be washed further comprises the steps of:distinguishing the image data of the clothes to be washed by using a neural network algorithm, and determining the material variety and quantity of the clothes to be washed;and respectively extracting the characteristic information of the hyperspectral images of the clothes to be washed, which are made of various materials.
- 8. The method of claim 6, whereinUnder the condition that the clothes to be washed contain various materials, the step of configuring the washing scheme according to the materials of the clothes to be washed comprises the following steps:selecting a shuffling scheme from corresponding washing schemes for the plurality of materials, the shuffling scheme satisfying a condition for avoiding damage to the plurality of materials; and isAnd outputting prompt information for prompting that the clothes to be washed cannot be shuffled when the shuffling scheme does not exist from the corresponding washing schemes of the multiple materials.
- 9. The method of claim 5, wherein the washing regimen further specifies any or more of:wash time, wash intensity, detergent type.
- 10, A washing machine comprising:an outer tub for holding washing water;an inner tub rotatably provided in the outer tub for accommodating laundry to be washed;the hyperspectral imaging device is arranged in the outer barrel, the shooting direction of the hyperspectral imaging device is configured to face the inner barrel, and the hyperspectral imaging device is used for shooting a hyperspectral image of the washing mixed liquid; anda controller comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, implements a laundry control method according to any of claims 1-9.
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