CN113564866A - Washing machine control method based on washing water spectral analysis and washing machine - Google Patents
Washing machine control method based on washing water spectral analysis and washing machine Download PDFInfo
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a washing machine control method based on washing water spectral analysis and a washing machine, wherein the control method comprises the following steps of: acquiring information of clothes in an inner drum of the washing machine; after the liquid level reaches a preset water inlet level, executing a preset stirring program; obtaining a washing water sample, and performing spectral analysis on the washing water sample to obtain a global absorption spectrum band of the current washing water; determining the stain type of the clothes according to the global absorption spectrum band; determining washing parameters according to the stain type and the clothes information, wherein the washing parameters comprise the type of detergent, the addition amount of the detergent, a washing mode, washing time and rinsing times; the washing program is executed according to the washing parameters. According to the washing machine control method provided by the embodiment of the invention, the stain type of clothes is identified through carrying out spectral analysis on the washing water, and the detergent is added according to the stain type, so that the stain identification precision is favorably improved, and the washing effect is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of washing machine control, in particular to a washing machine control method based on washing water spectral analysis and a washing machine.
Background
With the improvement of the requirements of people on the living quality, the washing machine gradually changes from the initial pure washing to a household washing and protecting center, and the intelligent washing and protecting of clothes are realized by utilizing an intelligent identification technology, so that the development trend of the washing machine is formed.
The washing machine can realize automatic addition of detergent when a washing program is executed. The traditional washing machine is mainly characterized in that detergent is automatically added according to the weight of clothes to be washed, because the weight of the clothes, the material of the clothes and the type of stains are different when a user washes the clothes every time, the types of the detergent on the market are various, the automatic putting amount of the detergent is calculated according to the weight of the clothes, and the inaccurate putting amount of the detergent is easily caused.
At present, some washing machines take stain types as reference factors for selecting detergents, the stain types on clothes are mainly identified by performing spectrum scanning on the clothes, and the defects that the angles and postures of users for throwing the clothes into the clothes are random, stain areas are easily shielded, the stain types cannot be accurately and quickly identified, the precision of throwing the detergents is low, and the washing effect is influenced are overcome.
Disclosure of Invention
The invention provides a washing machine control method based on washing water spectral analysis, which solves the problem that the stain type cannot be accurately identified and is beneficial to improving the stain identification precision.
In a first aspect, an embodiment of the present invention provides a washing machine control method based on washing water spectral analysis, including the following steps:
acquiring information of clothes in an inner drum of the washing machine;
after the liquid level reaches a preset water inlet level, executing a preset stirring program;
obtaining a washing water sample, and performing spectral analysis on the washing water sample to obtain a global absorption spectrum band of the current washing water;
determining the stain type of the clothes according to the global absorption spectrum band;
determining washing parameters according to the stain type and the clothes information, wherein the washing parameters comprise a detergent type, a detergent adding amount, a washing mode, washing time and rinsing times;
and executing a washing program according to the washing parameters.
In a second aspect, an embodiment of the present invention further provides a washing machine, which employs the washing machine control method based on the washing water spectral analysis, and the washing machine includes a control module, a clothes detection device, a liquid level sensor, a washing water sample collection device, a spectral detection device, and a detergent feeding device, wherein the detergent feeding device is used for storing multiple types of detergents; the clothes detection device is used for acquiring the clothes information of the clothes to be washed; the liquid level sensor is used for detecting the height of the liquid level in the inner drum of the washing machine; the washing water sample collecting device is used for obtaining a washing water sample; the spectrum detection device is used for carrying out spectrum analysis on the washing water sample to obtain the global absorption spectrum band of the current washing water; the control module is provided with a comparison analysis unit which is used for determining the stain type of clothes according to the global absorption spectrum wave band and determining washing parameters according to the stain type and the clothes information, wherein the washing parameters comprise the type of detergent, the addition amount of the detergent, a washing mode, washing time and rinsing times; the control module is also used for controlling the washing machine to execute a washing program according to the washing parameters.
According to the washing machine provided by the embodiment of the invention, by adopting the washing machine control method based on washing water spectral analysis, the stain type of clothes is identified by performing spectral analysis on the washing water, and the washing parameters are determined according to the stain type, the clothes material and the clothes weight, so that the problem that the stain type cannot be accurately identified is solved, the stain identification precision is favorably improved, the detergent addition accuracy is improved, the washing effect is improved, and the user experience is improved.
Drawings
Fig. 1 is a flowchart of a washing machine control method based on washing water spectral analysis according to an embodiment of the present invention;
fig. 2 is a flowchart of another washing machine control method based on washing water spectral analysis according to an embodiment of the present invention;
fig. 3 is a flowchart of a washing machine control method based on washing water spectral analysis according to another embodiment of the present invention;
fig. 4 is a flowchart of a washing machine control method based on washing water spectral analysis according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a washing machine according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment of the invention provides a washing machine control method based on washing water spectral analysis. The control method adds the detergent according to the material of the clothes, detects the using amount of the detergent according to the liquid level height of the inner drum of the washing machine when the washing machine executes a washing program, and adds the detergent for multiple times according to the material of the clothes, so that the using amount of the detergent can be adjusted according to the material of the clothes, and the washing effect is improved. Fig. 1 is a flowchart of a washing machine control method based on washing water spectral analysis according to an embodiment of the present invention. Fig. 2 is a flowchart of another washing machine control method based on washing water spectral analysis according to an embodiment of the present invention.
As shown in fig. 1, the control method includes the steps of:
step S101: acquiring the information of the clothes in the inner drum of the washing machine, wherein the information of the clothes comprises the material and weight of the clothes.
The clothes detection device can be arranged to detect the clothes information of the clothes to be washed put into the inner drum of the washing machine, such as the clothes material and the clothes weight. Specifically, different types of laundry detecting devices may be provided to detect laundry input.
For example, the laundry detecting device may include a laundry height detecting device disposed at an inner tub of the washing machine and a weighing device disposed at a bottom of the inner tub of the washing machine, the weighing device is used to detect a weight of the laundry, the height detecting device is used to detect a height of the laundry, and the comparison and analysis unit of the control module compares the height of the laundry and the weight of the laundry with pre-stored data to determine a material of the laundry.
For example, the image data in the inner drum of the washing machine can be acquired by adopting an image acquisition module, and the comparison analysis unit of the control module compares the image data with a prestored image to acquire the clothes information of the clothes to be washed in the inner drum of the washing machine.
Step S102: and after the liquid level reaches the preset water inlet level, executing a preset stirring program.
Wherein, the preset water inlet level is the lowest water level of the washing machine for executing the washing program. The preset stirring program is a program that the washing machine rotates according to a preset rotating speed to stir the clothes in the inner drum under the condition that no detergent is added.
Illustratively, a liquid level sensor is arranged in the inner barrel of the washing machine to detect the liquid level in the inner barrel of the washing machine, analog-to-digital conversion processing is carried out on the detection result, the processed liquid level data is sent to the control module, and the control module controls the washing machine to execute a preset stirring program when judging that the liquid level reaches a preset water inlet level.
Step S103: and acquiring a washing water sample, and performing spectral analysis on the washing water sample to acquire the global absorption spectrum band of the current washing water.
For example, a washing water sample collecting device may be disposed above the inner tub of the washing machine, and a space is disposed between the washing water sample collecting device and the inner tub of the washing machine to protect the washing water sample collecting device, when the washing water sample is required to be collected, the inner tub of the washing machine stops, the washing water sample collecting device is controlled to be lowered into the washing water, and a preset amount of washing water sample is collected, for example, the preset amount of water of each washing water sample may be 5 ml. And sending the collected washing water sample to a spectral detection device, and performing spectral analysis on the washing water sample by using the spectral detection device.
The washing water sample is obtained after the clothes to be washed are fully mixed and contacted with the water in the inner barrel of the washing machine through a preset stirring program. In this embodiment, the washing water sample may be subjected to spectroscopic analysis using absorption spectroscopy, which refers to a method of analyzing the composition of a substance based on the absorption spectrum of the substance. The light with different wavelengths has different effects and different absorption intensities on the washing water sample, and the components of the washing water sample can be qualitatively and quantitatively analyzed by acquiring the wave band of the absorption spectrum.
Illustratively, a visible light spectrometer can be adopted to collect a full-wave-band continuous spectrum of the washing water sample in a visible light region, a characteristic absorption spectrum of the washing water sample can be obtained, and a global absorption spectrum wave band of the current washing water can be obtained through the characteristic absorption spectrum of the washing water sample.
Of course, on the premise of ensuring the analysis effect, other spectral analysis methods can be adopted to perform qualitative and quantitative analysis on the washing water sample, which is not limited to this.
Optionally, as shown in fig. 2, the obtaining of the washing water sample, performing spectral analysis on the washing water sample, and obtaining the global absorption spectrum band of the current washing water specifically includes the following steps:
step S201: and acquiring N local washing water samples within preset stirring time T, wherein N is an integer greater than or equal to 2.
In the embodiment, the preset agitation time T is the total time for the washing machine to perform the preset agitation program, and after the preset agitation time T, at least part of the dirt in the laundry is fully mixed with the water in the inner drum of the washing machine. Further, when the inner drum of the washing machine stops rotating, the washing water sample collecting device is controlled to be placed into washing water to collect a washing water sample with a preset water amount, the collected washing water sample is sent to the spectrum detection device, and the spectrum detection device is adopted to perform spectrum analysis on the washing water sample.
For example, the preset stirring time T may be 5 minutes, and N may be 5, that is, at the end of the preset stirring time 5 minutes, a total of 5 partial washing water samples are obtained, wherein the amount of washing water of the 5 partial washing water samples is the same, and may be 5 ml, for example.
Step S202: and respectively carrying out spectral analysis on the N local washing water samples to obtain local absorption spectrum wave bands passing through the N local washing water samples.
The N local washing water samples may be washing water samples of different water layers in the inner tub of the washing machine, and each local washing water sample is subjected to spectral analysis according to the method mentioned in step S103, so that the characteristic absorption spectrum of each local washing water sample can be obtained, and then N local absorption spectrum bands are obtained, where the local absorption spectrum bands correspond to the local washing water samples one to one.
Step S203: and combining and de-weighting the N local absorption spectrum wave bands to obtain the global absorption spectrum wave band of the current washing water.
Specifically, due to the fact that the acquisition time of each local washing water sample and/or the water layer are not consistent, the N local absorption spectrum bands may be partially overlapped or completely different, and the N local absorption spectrum bands are combined to remove the duplication, so that the global absorption spectrum band of the current washing water is acquired.
Step S104: and determining the stain type of the clothes according to the global absorption spectrum band.
Specifically, the corresponding relation data of the spectrum band and the stain type can be prestored, and the comparison analysis unit is adopted to compare the global absorption spectrum band with the spectrum band in the corresponding relation data, so as to obtain the stain type corresponding to the global absorption spectrum band.
Fig. 3 is a flowchart of a washing machine control method based on washing water spectral analysis according to another embodiment of the present invention. In this example, stain types are divided into two types, including: stubborn stains (stain types such as oil stains, fruit stains, blood stains, and the like) and general stains (stain types such as mud stains, sweat stains, and the like).
Optionally, as shown in fig. 3, determining the stain type of the laundry according to the global absorption spectrum band includes the following steps:
step S301: the global absorption spectral band is compared to a pre-stored spectral band.
The prestored spectrum wave band can be a spectrum wave band corresponding to a conventional stubborn stain after being mixed (such as oil stain, fruit stain and blood stain), and the global absorption spectrum wave band and the prestored spectrum wave band can be compared by adopting a comparison analysis unit.
Illustratively, the pre-stored spectral bands may include a 400 nm to 800 nm band (corresponding to the main stain type being oil stain), a 800 nm to 950 nm band (corresponding to the main stain type being blood stain), and a 1000 nm to 1380 nm band (corresponding to the main stain type being fruit stain).
Step S302: and if the global absorption spectrum band is at least partially overlapped with the prestored spectrum band, judging the stain type to be stubborn stain.
Illustratively, the global absorption spectrum band is compared with a prestored spectrum band by using a comparison analysis unit, and if a part of bands in the global absorption spectrum band belong to a band from 400 nanometers to 800 nanometers, a band from 800 nanometers to 950 nanometers and a band from 1000 nanometers to 1380 nanometers, the type of the stain in the current washing water is judged to be stubborn.
Step S303: and if the global absorption spectrum band is not overlapped with the pre-stored spectrum band completely, judging that the stain type is common stain.
Illustratively, the global absorption spectrum band is compared with a prestored spectrum band by using a comparison analysis unit, and if the band in the global absorption spectrum band does not belong to any one of the bands from 400 nm to 800 nm, from 800 nm to 950 nm and from 1000 nm to 1380 nm, the type of the stain in the current washing water is determined to be a common stain.
For example, the pre-stored spectral bands may include a first pre-stored spectral band (e.g., 400 nm to 800 nm band), a second pre-stored spectral band (e.g., 800 nm to 950 nm band), and a third pre-stored spectral band (e.g., 400 nm to 800 nm band), the global absorption spectral band is compared with the first pre-stored spectral band, the second pre-stored spectral band, and the third pre-stored spectral band by the comparison and analysis unit, and the stain type is determined according to the comparison result. It should be noted that, if the global absorption spectrum band at least partially coincides with the plurality of pre-stored spectrum bands, the stain type is determined according to the pre-stored spectrum band that most coincides with the global absorption spectrum band.
Therefore, the embodiment of the invention can identify the stain type of the clothes to be washed by carrying out spectral analysis on the washing water, solves the problem that the stain type cannot be accurately identified, avoids the problem that a user artificially searches for the stain area in the process of putting the clothes into the clothes, is beneficial to improving the stain identification precision, and has high intelligent degree.
Step S105: and determining washing parameters according to the stain type and the clothes information, wherein the washing parameters comprise the type of detergent, the addition amount of the detergent, a washing mode, washing time and rinsing times.
The detergent type and the stain type satisfy pre-stored corresponding relationship data, for example, if the stain type is stubborn stain, the detergent type is a strong detergent, for example, the strong detergent may include washing aids such as soda, caustic alkali, sodium silicate, an emulsifier, chlorine bleaching powder and the like; if the stain type is a normal stain, the detergent type is a conventional detergent, wherein the conventional detergent may be a detergent having a conventional washing effect.
Specifically, the comparison analysis unit may compare the laundry material and the laundry weight of the laundry to be washed with the pre-stored data, and determine a washing mode, a first washing time, a first rinsing time and a first detergent addition amount according to the comparison result, for example, the washing mode may include a cotton and linen washing mode, a down washing mode, a shirt washing mode, a baby laundry washing mode, and the like; the first washing time includes 30 minutes, 40 minutes, 50 minutes, 60 minutes, etc.; the number of first rinses may be 1, 2, 3, etc.
Further, the stain type and the prestored corresponding relation data can be compared by adopting a comparison analysis unit, if the stain type is judged to be stubborn stain, the detergent type is determined to be a strong detergent, the first washing time is prolonged by 5 minutes, the first rinsing frequency is increased once, the detergent dosage is increased by 5 milliliters, at the moment, the washing time is adjusted to be the second washing time, the rinsing frequency is adjusted to be the second rinsing frequency, and the detergent dosage is adjusted to be the second detergent addition amount; and if the stain type is judged to be common stain, determining that the detergent type is a conventional detergent, wherein the washing time is maintained to be the first washing time, the rinsing times are maintained to be the first rinsing times, and the detergent dosage is maintained to be the first detergent addition amount.
If the washing mode is the baby laundry washing mode, the detergent type is not adjusted according to the stain type.
Step S106: the washing program is executed according to the washing parameters.
Optionally, the performing of the washing program according to the washing parameters comprises the steps of: adding a detergent according to the type and the additive amount of the detergent; and after the detergent is put in, controlling the washing machine to execute the washing program according to the washing mode, the washing time and/or the rinsing times.
Specifically, detergent is dosed according to the finally determined detergent type and detergent addition amount, and the washing program is executed with the finally determined washing parameters. For example, if the stain type is judged to be common stain, a first detergent adding amount of a conventional detergent is added, and a washing program is executed according to a selected washing mode, a first washing time and a first rinsing frequency; and if the stain type is judged to be stubborn stain, adding a second detergent adding amount of strong detergent, and executing the washing program according to the selected washing mode, the second washing time and the second rinsing times.
Therefore, according to the washing machine control method based on washing water spectral analysis provided by the embodiment of the invention, the stain type of clothes is identified through the spectral analysis of the washing water, and the washing parameters are determined according to the stain type, the clothes material and the clothes weight, so that the problem that the stain type cannot be accurately identified is solved, the stain identification precision is favorably improved, the detergent adding accuracy is improved, the washing effect is improved, and the user experience is improved.
Further, the embodiment of the present invention provides two methods for obtaining a washing water sample, which specifically include:
example one
Optionally, obtaining N local wash water samples at a preset stirring time T, comprising the steps of: dividing washing water in an inner barrel of the washing machine into N water layers from bottom to top; and when the stirring time reaches the preset stirring time T, respectively sampling the washing water of the N water layers to obtain N local washing water samples.
Exemplarily, the height detection device can be adopted to detect the liquid level in the inner barrel of the washing machine and send the liquid level data to the control module, and the control module processes the liquid level data to obtain N sampling height data, controls the lowering height of the washing water sample collection device according to the sampling height data, and samples the washing water in different water layers.
In this embodiment, the control module may be adapted to control the inner drum of the washing machine to rotate at a preset rotation speed for a preset stirring time T, and when the stirring time reaches the preset stirring time T, control the inner drum of the washing machine to stop rotating, and sequentially divide the washing water into a first water layer, a second water layer, an … … N-1 th water layer, and an nth water layer from bottom to top, where the first water layer is located at the lowest part, and the nth water layer is located at the highest part, and obtain a local washing water sample from each water layer respectively, so as to obtain N local washing water samples in total.
Example two
Optionally, obtaining N local wash water samples at a preset stirring time T, comprising the steps of: dividing washing water in an inner barrel of the washing machine into N water layers from bottom to top; controlling the washing machine to stop stirring at preset stirring time T and at preset time intervals of T/N; and sampling the washing water of the N water layers from bottom to top in sequence to obtain N local washing water samples, wherein one local washing water sample is obtained when the stirring is stopped each time.
Exemplarily, the height detection device can be adopted to detect the liquid level in the inner barrel of the washing machine and send the liquid level data to the control module, and the control module processes the liquid level data to obtain N sampling height data, controls the lowering height of the washing water sample collection device according to the sampling height data, and samples the washing water in different water layers.
Specifically, the control module can be adopted to control the inner barrel of the washing machine to rotate at a preset rotating speed to execute a stirring program, after a preset time interval T/N, the washing machine is controlled to stop stirring, washing water is sequentially divided into a first water layer, a second water layer, an … … (N-1) th water layer and an Nth water layer from bottom to top, wherein the first water layer is positioned at the lowest part, the Nth water layer is positioned at the uppermost part, first sampling is executed, and a local washing water sample is obtained from the first water layer; after the first sampling is finished, the inner barrel of the washing machine is controlled to rotate at a preset rotating speed again to execute a stirring program, the washing machine is controlled to stop stirring after a preset time interval T/N, washing water is divided into a first water layer, a second water layer, an … … (N-1) th water layer and an Nth water layer from bottom to top in sequence, wherein the first water layer is located at the lowest part, the Nth water layer is located at the uppermost part, the second sampling is executed, a local washing water sample is obtained from the second water layer, and by analogy, N local washing water samples are obtained through N times of sampling.
Therefore, a plurality of washing water samples can be obtained, each washing water sample is located in different water layers, the phenomenon that stains are deposited on different water layers to influence sampling results is avoided, and the sampling precision of washing water is improved.
The embodiment of the invention also provides a washing machine control method based on the washing water spectral analysis. In this embodiment, the washing machine may be controlled at the terminal device.
In this embodiment, the washing machine control method based on the spectral analysis of the washing water further includes the steps of: setting corresponding relation data of a spectrum wave band, a stain type and a detergent type in the terminal equipment; sending the corresponding relation data set by the user to the washing machine for storage; and determining the type of the detergent according to the global absorption spectrum wave band and the corresponding relation data.
The terminal device may include one or more of a display panel of a washing machine, a smart phone, a tablet computer, or a notebook computer.
Specifically, before washing the clothes, the terminal device may set the spectrum band, the stain type, and the detergent type corresponding to the spectrum band, for example, the stain type corresponding to the fourth spectrum band may be set as sweat stain, and the detergent type corresponding to the sweat stain may be set as strong detergent. After the corresponding relation data are set, the wireless communication connection between the terminal equipment and the washing machine is established, the corresponding relation data set by a user are sent to a comparison analysis module of the washing machine, the comparison analysis module compares the global absorption spectrum wave band with the corresponding relation data, and the type of the detergent is determined according to a comparison result.
Fig. 4 is a flowchart of a washing machine control method based on washing water spectral analysis according to another embodiment of the present invention. In this embodiment, the control method may detect the turbidity of the washing water and adjust the washing parameters according to the turbidity of the washing water.
As shown in fig. 4, after the detergent is put in according to the type and amount of the detergent, and the washing program is executed according to the washing parameters, the method further includes the following steps:
step S401: the turbidity of the current washing water is acquired.
In this embodiment, a turbidity detection device may be provided to detect the turbidity of the washing water, and the greater the contents of detergent and dirt in the washing water, the higher the turbidity of the washing water.
Step S402: and if the turbidity is larger than the preset threshold value, increasing the rinsing times once.
In this embodiment, the comparison analysis unit may be adopted to compare the turbidity with a preset threshold, if the turbidity is greater than the preset threshold, it is determined that the cleanliness of the washing water is low, and one rinsing is added on the basis of the current rinsing times, so that the low cleanliness of the clothes caused by excessive detergent addition or strong detergent usage can be avoided, and the washing effect can be improved.
The embodiment of the invention also provides a washing machine control method based on the washing water spectral analysis. In this embodiment, the washing machine control method based on the spectral analysis of the washing water further includes the steps of: acquiring image data in an inner barrel of the washing machine in real time; and sending the image data and/or stain type and/or clothes material and/or clothes weight to the terminal equipment for displaying.
The terminal equipment comprises one or more of a display panel of the washing machine, a smart phone, a tablet personal computer or a notebook computer.
In this embodiment, the washing machine may be provided with an image acquisition module and a communication module, the communication module is connected to a control module of the washing machine, the image acquisition module is configured to acquire image data in an inner cylinder of the washing machine and send the image data to the communication module, and the communication module is configured to establish a wireless communication connection between the washing machine and a terminal device, so that the washing machine sends the image data and/or stain type and/or clothing material and/or clothing weight in the inner cylinder of the washing machine to the terminal device. In the process of executing the washing program, a user can check image data and/or stain types and/or clothes materials and/or clothes weights in the inner drum of the washing machine at the terminal device, set washing parameters according to the image data and/or the stain types and/or the clothes materials and/or the clothes weights, and send the washing parameters set by the user to the washing machine. The control module of the washing machine receives the washing parameters sent by the communication module, controls the detergent putting device to be opened or closed according to the type of the detergent set by the user and the detergent adding amount, so that the detergent set by the user is put in, and controls the washing machine to execute a washing program according to the washing parameters set by the user after the detergent is added, so that the remote monitoring of the washing process of the washing machine can be realized, the washing effect is favorably improved, and the intelligent degree is high.
The embodiment of the invention also provides a washing machine adopting the washing machine control method based on the washing water spectral analysis. Fig. 5 is a schematic structural diagram of a washing machine according to an embodiment of the present invention. As shown in fig. 5, the washing machine 01 includes a control module 101, a laundry detecting device 102, a liquid level sensor 103, a wash water sample collecting device 104, a spectrum detecting device 105, and a detergent dispensing device 106.
The detergent putting device 106 is used for storing various types of detergents; the clothes detection device 102 is used for acquiring clothes information of clothes to be washed, wherein the clothes information comprises clothes material and clothes weight; the liquid level sensor 103 is used for detecting the height of the liquid level in the inner drum of the washing machine; the washing water sample collection device 104 is used for obtaining a washing water sample; the spectrum detection device 105 is used for performing spectrum analysis on the washing water sample to obtain the global absorption spectrum band of the current washing water; the control module 101 is provided with a comparison and analysis unit, and the comparison and analysis unit is used for determining the stain type of the clothes according to the global absorption spectrum band and determining the washing parameters according to the stain type and the clothes information, wherein the washing parameters comprise the type of detergent, the addition amount of the detergent, a washing mode, washing time and rinsing times; the control module 101 is further configured to control the detergent feeding device 106 to add detergent according to the type and the additive amount of the detergent, and control the washing machine to execute a washing program according to the washing parameters.
Optionally, the control module 101 is further configured to control the washing water sample collecting device 104 to obtain N local washing water samples and send the N local washing water samples to the spectrum detecting device 105 within a preset stirring time T; the spectrum detection device 105 is configured to perform spectrum analysis on the N local washing water samples, acquire local absorption spectrum bands passing through the N local washing water samples, and send the N local absorption spectrum bands to the control module 101; the control module 101 merges and deduplicates the N local absorption spectrum bands to obtain a global absorption spectrum band of the current washing water; wherein N is an integer of 2 or more.
Optionally, the control module 101 is further configured to divide the washing water in the inner tub of the washing machine into N water layers from bottom to top; when the stirring time reaches the preset stirring time T, the control module 101 controls the washing water sample collection device 104 to sample the washing water of the N water layers respectively, and N local washing water samples are obtained.
Optionally, the control module 101 is further configured to divide the washing water in the inner tub of the washing machine into N water layers from bottom to top; at a preset stirring time T, the control module 101 controls the washing machine to stop stirring at preset time intervals T/N, and controls the washing water sample collection device 104 to sequentially sample the washing water of the N water layers from bottom to top to obtain N local washing water samples, wherein one local washing water sample is obtained when stirring is stopped each time.
Optionally, the comparison analysis unit is further configured to compare the global absorption spectrum band with a prestored spectrum band, and if the global absorption spectrum band is at least partially overlapped with the prestored spectrum band, the comparison analysis unit determines that the stain type is stubborn stain; and if the global absorption spectrum band is not overlapped with the pre-stored spectrum band completely, the comparison analysis unit determines that the stain type is common stain.
Optionally, the washing machine further comprises a turbidity detection device. The turbidity detection device is used for acquiring the turbidity of current washing water and sending the turbidity data to the comparison analysis unit of the control module, the comparison analysis unit is also used for comparing the turbidity data with a preset threshold value, and if the comparison analysis unit judges that the turbidity data is larger than the preset threshold value, the control module controls the rinsing times of the washing machine to be increased once.
As shown in fig. 5, the washing machine 01 further includes an image acquisition device 107, a display device 108 and a communication module 109, wherein the image acquisition module is configured to acquire image data in the inner cylinder of the washing machine and send the image data to the communication module 109 and the display device 108; the display device 108 is used for displaying image data and/or stain types and/or clothes materials and/or clothes weights; the communication module 109 is used to establish a wireless communication connection between the washing machine and the terminal device, so that the washing machine transmits image data and/or stain type and/or clothes material and/or clothes weight to the terminal device.
In this embodiment, the terminal device further sets corresponding relationship data of the spectrum band, the stain type and the detergent type; the terminal equipment sends the corresponding relation data set by the user to the washing machine by adopting the communication module 109, and sends the corresponding relation data to the control module 101 for storage; further, the control module 101 determines the detergent type according to the global absorption spectrum band and the correspondence data.
In this embodiment, washing machine inner tube top still is equipped with the down lamp, and when light was not enough, control module 101 control down lamp was opened, was favorable to gathering image data.
The terminal device can be one or a combination of a display panel of a washing machine, a smart phone, a tablet computer or a notebook computer.
In summary, according to the washing machine provided by the embodiment of the invention, by adopting the washing machine control method based on washing water spectral analysis, the control method identifies the stain type of the clothes by performing spectral analysis on the washing water, determines the washing parameters according to the stain type, the clothes material and the clothes weight, solves the problem that the stain type cannot be identified accurately, is beneficial to improving the stain identification precision, improving the detergent adding accuracy, improving the washing effect and improving the user experience.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A washing machine control method based on washing water spectral analysis is characterized by comprising the following steps:
acquiring information of clothes in an inner drum of the washing machine;
after the liquid level reaches a preset water inlet level, executing a preset stirring program;
obtaining a washing water sample, and performing spectral analysis on the washing water sample to obtain a global absorption spectrum band of the current washing water;
determining the stain type of the clothes according to the global absorption spectrum band;
determining washing parameters according to the stain type and the clothes information, wherein the washing parameters comprise a detergent type, a detergent adding amount, a washing mode, washing time and/or rinsing times;
and executing a washing program according to the washing parameters.
2. The washing machine control method based on washing water spectral analysis of claim 1, wherein the steps of obtaining a washing water sample, performing spectral analysis on the washing water sample, and obtaining the global absorption spectrum band of the current washing water comprise:
acquiring N local washing water samples within preset stirring time T;
respectively carrying out spectral analysis on the N local washing water samples to obtain local absorption spectrum wave bands passing through the N local washing water samples;
combining and de-weighting the N local absorption spectrum wave bands to obtain a global absorption spectrum wave band of the current washing water;
wherein N is an integer of 2 or more.
3. A washing machine control method based on washing water spectral analysis according to claim 2, characterized in that said obtaining N partial washing water samples at a preset agitation time T comprises the steps of:
dividing washing water in an inner barrel of the washing machine into N water layers from bottom to top;
and when the stirring time reaches the preset stirring time T, respectively sampling the washing water of the N water layers to obtain N local washing water samples.
4. A washing machine control method based on washing water spectral analysis according to claim 2, characterized in that said obtaining N partial washing water samples at a preset agitation time T comprises the steps of:
dividing washing water in an inner barrel of the washing machine into N water layers from bottom to top;
controlling the washing machine to stop stirring at preset stirring time T and at preset time intervals of T/N;
and sampling the washing water of the N water layers from bottom to top in sequence to obtain N local washing water samples, wherein one local washing water sample is obtained when the stirring is stopped at each time.
5. A washing machine control method based on washing water spectral analysis according to claim 1, characterized in that said determining the stain type of the laundry according to said global absorption spectral band comprises the steps of:
comparing the global absorption spectrum band with a pre-stored spectrum band;
if the global absorption spectrum band is at least partially overlapped with the prestored spectrum band, judging that the stain type is stubborn stain;
and if the global absorption spectrum band is not overlapped with the prestored spectrum band completely, judging that the stain type is common stain.
6. The washing machine control method based on the spectral analysis of the washing water according to claim 5, further comprising the steps of:
setting corresponding relation data of a spectrum wave band, a stain type and a detergent type in the terminal equipment;
sending the corresponding relation data set by the user to the washing machine for storage;
and determining the type of the detergent according to the global absorption spectrum waveband and the corresponding relation data.
7. A washing machine control method based on washing water spectral analysis according to any of claims 1-5, characterized by further comprising the following steps after performing a washing program according to the washing parameters:
obtaining the turbidity of the current washing water;
and if the turbidity is larger than a preset threshold value, increasing the rinsing frequency once.
8. Washing machine control method based on washing water spectral analysis according to any of claims 1-5, characterized by further comprising the steps of:
acquiring image data in an inner barrel of the washing machine in real time;
and sending the image data and/or the stain type and/or the clothes material and/or the clothes weight to a terminal device for displaying.
9. Washing machine control method based on washing water spectral analysis according to any of claims 1-5, characterized in that the execution of the washing program according to the washing parameters comprises the following steps:
putting detergent according to the type and the addition amount of the detergent;
and after the detergent is put in, controlling the washing machine to execute the washing program according to the washing mode, the washing time and/or the rinsing times.
10. A washing machine, characterized in that the washing machine control method based on washing water spectral analysis according to any one of claims 1-9 is adopted, the washing machine comprises a control module, a clothes detection device, a liquid level sensor, a washing water sample collection device, a spectrum detection device and a detergent feeding device, wherein,
the detergent putting device is used for storing various types of detergents;
the clothes detection device is used for acquiring the clothes information of the clothes to be washed;
the liquid level sensor is used for detecting the height of the liquid level in the inner drum of the washing machine;
the washing water sample collecting device is used for obtaining a washing water sample;
the spectrum detection device is used for carrying out spectrum analysis on the washing water sample to obtain the global absorption spectrum band of the current washing water;
the control module is provided with a comparison analysis unit which is used for determining the stain type of clothes according to the global absorption spectrum wave band and determining washing parameters according to the stain type and the clothes information, wherein the washing parameters comprise the type of detergent, the addition amount of the detergent, a washing mode, washing time and rinsing times;
the control module is also used for controlling the washing machine to execute a washing program according to the washing parameters.
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