CN112941818A - Washing machine control method and device, storage medium and washing machine - Google Patents
Washing machine control method and device, storage medium and washing machine Download PDFInfo
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- CN112941818A CN112941818A CN202110096206.9A CN202110096206A CN112941818A CN 112941818 A CN112941818 A CN 112941818A CN 202110096206 A CN202110096206 A CN 202110096206A CN 112941818 A CN112941818 A CN 112941818A
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- 238000005406 washing Methods 0.000 title claims abstract description 318
- 238000000034 method Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 189
- 239000006260 foam Substances 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 22
- 238000004590 computer program Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 description 11
- 239000003599 detergent Substances 0.000 description 10
- 230000008859 change Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/20—Washing liquid condition, e.g. turbidity
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/08—Draining of washing liquids
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/10—Temperature of washing liquids; Heating means therefor
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
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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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention provides a washing machine control method, a washing machine control device, a storage medium and a washing machine, wherein the method comprises the following steps: after the washing machine is started, controlling the washing machine to feed water according to the weight of the clothes to be washed; after controlling the washing machine to completely feed water, detecting a first water level frequency of the washing machine; controlling the washing machine to heat and wash the clothes to be washed for a first preset time; detecting a second water level frequency of the washing machine after heating and washing for a first preset time; judging whether washing foam generated by the washing machine is in a preset state or not according to the first water level frequency and the second water level frequency; and if the washing foam generated by the washing machine is in a preset state, controlling the washing machine to execute a preset defoaming program. The scheme provided by the invention can eliminate washing foam.
Description
Technical Field
The invention relates to the field of control, in particular to a washing machine control method and device, a storage medium and a washing machine.
Background
In the washing process of the drum washing machine, a user is easy to generate a large amount of foam because of excessive detergent put in. Excessive foam is a burden on the washing machine, easily damages the washing machine, and directly affects the final washing effect.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and provides a control method and device for a washing machine, a storage medium and a washing machine, so as to solve the problem that a large amount of foam is easily generated during the washing process of a drum washing machine in the prior art due to excessive detergent input by a user.
One aspect of the present invention provides a control method of a washing machine, including: a water inlet step, which is used for controlling the water inlet of the washing machine according to the weight of the clothes to be washed after the washing machine is started; a first detection step, which is used for detecting the first water level frequency of the washing machine after controlling the washing machine to finish water feeding; a heating washing step for controlling the washing machine to heat and wash the clothes to be washed for a first preset time; a second detection step for detecting a second water level frequency of the washing machine after the heating washing for a first preset time; a judging step for judging whether the washing foam generated by the washing machine is in a preset state according to the first water level frequency and the second water level frequency; and an executing step for controlling the washing machine to execute a preset defoaming program if the washing foam generated by the washing machine is judged to be in a preset state.
Optionally, after controlling the washing machine to completely feed water, standing for a second preset time, and detecting the first water level frequency of the washing machine; and/or after the washing machine is controlled to heat and wash the clothes to be washed for a first preset time, standing for a second preset time, and detecting the second water level frequency of the washing machine.
Optionally, the determining whether the washing bubbles generated by the washing machine are in a preset state according to the first water level frequency and the second water level frequency includes: judging whether the difference value of the second water level frequency and the first water level frequency is greater than a preset threshold value or not; if the difference value is judged to be less than or equal to a preset threshold value, determining that washing foam generated by the washing machine is not in a preset state; if the difference value is larger than the preset threshold value, controlling a motor of the washing machine to operate for a third preset time according to the first preset rotating speed; determining whether washing foam generated by the washing machine is in a preset state according to the motor power when the motor runs for a third preset time; and if the power of the motor is greater than a preset power value, determining that washing foam generated by the washing machine is in a preset state.
Optionally, the washing machine is controlled to execute a preset defoaming program, including: controlling a water inlet valve and a drainage pump of the washing machine to be opened simultaneously, and controlling a motor of the washing machine to operate according to a second preset rotating speed; and when the time for controlling the washing machine to execute the defoaming program reaches the preset defoaming time, controlling the washing machine to exit the defoaming program.
Another aspect of the present invention provides a control apparatus for a washing machine, comprising: the water inlet unit is used for controlling the water inlet of the washing machine according to the weight of the clothes to be washed after the washing machine is started; the first detection unit is used for detecting the first water level frequency of the washing machine after the water inlet unit controls the washing machine to completely feed water; the heating washing unit is used for controlling the washing machine to heat and wash the clothes to be washed for a first preset time; a second detection unit for detecting a second water level frequency of the washing machine after the heating washing for a first preset time; a judging unit for judging whether the washing foam generated by the washing machine is in a preset state according to the first water level frequency and the second water level frequency; and the execution unit is used for controlling the washing machine to execute a preset defoaming program if the judgment unit judges that the washing foam generated by the washing machine is in a preset state.
Optionally, after the water inlet unit controls the washing machine to completely feed water, and stands still for a second preset time, the first detection unit detects the first water level frequency of the washing machine; and/or the presence of a gas in the gas,
after the heating washing unit controls the washing machine to heat and wash the clothes to be washed for a first preset time and then stands for a second preset time, the second detection unit detects the second water level frequency of the washing machine.
Optionally, the determining unit determining whether the washing bubbles generated by the washing machine are in a preset state according to the first water level frequency and the second water level frequency, includes: judging whether the difference value of the second water level frequency and the first water level frequency is greater than a preset threshold value or not; if the difference value is judged to be less than or equal to a preset threshold value, determining that washing foam generated by the washing machine is not in a preset state; if the difference value is larger than the preset threshold value, controlling a motor of the washing machine to operate for a third preset time according to the first preset rotating speed; determining whether washing foam generated by the washing machine is in a preset state according to the motor power when the motor runs for a third preset time; and if the power of the motor is greater than a preset power value, determining that washing foam generated by the washing machine is in a preset state.
Optionally, the execution unit controls the washing machine to execute a preset defoaming program, including: controlling a water inlet valve and a drainage pump of the washing machine to be opened simultaneously, and controlling a motor of the washing machine to operate according to a second preset rotating speed; and when the time for controlling the washing machine to execute the defoaming program reaches the preset defoaming time, controlling the washing machine to exit the defoaming program.
A further aspect of the invention provides a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of any of the methods described above.
In a further aspect, the invention provides a washing machine comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods described above when executing the program.
In a further aspect, the invention provides a washing machine comprising a washing machine control device as described in any one of the preceding claims.
According to the technical scheme of the invention, whether washing foam of the washing machine is in a high foam state can be preliminarily determined according to the change of the water level frequency of the washing machine, whether foam eliminating operation is executed is further determined according to the motor frequency, and the foam eliminating operation is carried out by simultaneously feeding water and discharging water, so that the washing foam can be eliminated on the premise of not increasing the hardware cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a method diagram illustrating an embodiment of a method for controlling a washing machine according to the present invention;
FIG. 2 is a method diagram illustrating an embodiment of a method for controlling a washing machine according to the present invention;
fig. 3 is a block diagram of an embodiment of a control device of a washing machine according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a method diagram illustrating an embodiment of a method for controlling a washing machine according to the present invention.
As shown in fig. 1, according to an embodiment of the present invention, the washing machine control method includes at least a water inlet step S110, a first detection step S120, a heating washing step S130, a second detection step S140, a judgment step S150, and an execution step S160.
And step S110, controlling the water inlet of the washing machine according to the weight of the clothes to be washed after the washing machine is started.
And step S120, detecting the first water level frequency of the washing machine after controlling the washing machine to completely feed water.
Specifically, after the washing machine is started and clothes to be washed put in by a user are weighed, the washing machine is controlled to start water inflow according to weighing data, in the process, the inner drum of the washing machine is kept still until the water amount reaches a set water amount (namely, the water amount determined according to the weight of the clothes), the water inflow is finished, and at the moment, the current first water level frequency L1 (an electric signal detected by a water level sensor) is measured. Optionally, to ensure the accuracy of the detection, after controlling the washing machine to completely feed water, the washing machine is left for a second preset time (for example, 30S) before detecting the current first water level frequency L1.
And step S130, controlling the washing machine to heat and wash the clothes to be washed for a first preset time.
Step S140, detecting a second water level frequency of the washing machine after the heating washing for a first preset time.
Specifically, the washing machine is controlled to heat the clothes to be washed, the inner drum is synchronously controlled to periodically rotate to wash the clothes to be washed, and after the clothes are heated and washed for a first preset time, the second water level frequency of the washing machine is detected. Heating can help the speed of foam generation, shorten judgement time. The heating in the washing process is helpful to improve the activity of the detergent and improve the washing effect. Optionally, after the washing machine is controlled to heat and wash the laundry for a first preset time, and then the laundry is kept still for a second preset time, the second water level frequency of the washing machine is detected. Namely, after the heating washing is carried out for the first preset time, the inner cylinder is controlled to stop rotating, and after the standing washing is carried out for the second preset time, the second water level frequency of the washing machine is detected. Optionally, the washing machine is controlled to continuously heat the laundry during a second preset time of standing.
And step S150, judging whether the washing foam generated by the washing machine is in a preset state according to the first water level frequency and the second water level frequency.
The preset state may be a high bubble state. In some embodiments, whether the washing bubbles generated by the washing machine are in a preset state, i.e. a high bubble state, is determined according to the difference between the second water level frequency and the first water level frequency. That is, the amount of foam is reflected by the change in the frequency of the water level after the heated washing. Since the foam is generated from water, the more foam, the lower the water content. For example, when no foam is generated, the water level frequency is 3600Hz, and after the foam is generated, part of water becomes foam, the water level drops, the water level frequency rises, becoming 3800Hz (the water level frequency value is smaller as the water amount is larger). Therefore, the amount of foam can be judged by detecting the change of the water level frequency, and when the water level frequency has large change, the foam can be used as the judgment basis of high foam.
Specifically, whether the difference value between the second water level frequency and the first water level frequency is greater than a preset threshold value is judged; and if the difference value is judged to be less than or equal to the preset threshold value, determining that the washing foam generated by the washing machine is not in a preset state. If the difference value is larger than the preset threshold value, controlling a motor of the washing machine to operate for a third preset time according to the first preset rotating speed; and determining whether the washing foam generated by the washing machine is in a preset state according to the motor power when the motor runs for a third preset time. And if the power of the motor is greater than a preset power value, determining that washing foam generated by the washing machine is in a preset state. Optionally, the first preset rotation speed v1 is more than or equal to 93 rpm.
For example, it is judged whether a difference Δ L between the second water level frequency L2 and the first water level frequency L1 is greater than 50Hz (a preset threshold), and when Δ L ≦ 50Hz, it is determined that there is no high bubble. When Δ L > 50Hz, the presence or absence of high foaming is further judged. At this time, the motor starts to operate for 10s (third preset time) at a (first preset rotating speed) rotating speed v1, and v1 is more than or equal to 93 rpm. Judging whether the motor power W is larger than a preset power value W1, if W is not larger than W1, returning to the heating washing step (step S130), and re-executing the second detection step (step S140) and the judgment step (step S150), and judging whether the washing foam generated by the washing machine is in a preset state according to the first water level frequency and the second water level frequency; if the motor power W is larger than W1, the washing machine is judged to be in a high-foam state.
And step S160, if the washing foam generated by the washing machine is judged to be in a preset state, controlling the washing machine to execute a preset defoaming program.
If the washing foam generated by the washing machine is judged not to be in a preset state, controlling the washing machine to execute a preset washing program; and if the washing foam generated by the washing machine is in a preset state, controlling the washing machine to execute a preset defoaming program.
In some embodiments, controlling the washing machine to perform the preset defoaming program may specifically include: and controlling a water inlet valve and a drainage pump of the washing machine to be opened simultaneously, and controlling a motor of the washing machine to operate according to a second preset rotating speed. And when the time for controlling the washing machine to execute the defoaming program reaches the preset defoaming time, controlling the washing machine to exit the defoaming program. Optionally, the second preset rotating speed v2 is more than or equal to 200 rpm.
Specifically, after the washing machine enters a defoaming procedure, a drainage pump and a water inlet valve of the washing machine are opened simultaneously, wherein water enters from a door seal spray header in the water inlet process. And (4) keeping the drainage pump continuously opened, and discharging bubbles in a mode of water inlet and water discharge. Since a lot of detergent is fully blended into the clothes, in the process, the motor of the washing machine rotates to drive the inner drum of the washing machine to operate according to the (second preset rotating speed) rotating speed v 2. Due to the centrifugal force, the detergent in the load is pushed out of the laundry, dissolved by dilution of the water flow, and discharged out of the washing machine through the drain pump.
Since the foam is lighter in weight than water, in this state, a long time of operation is required to achieve the effect of eliminating the foam. And when the defoaming time reaches the preset defoaming time t, finishing the whole defoaming procedure, and subsequently performing a clothes rinsing stage to clean residual detergent.
For clarity of explaining the technical solution of the present invention, the following describes an execution flow of the washing machine control method according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a control method of a washing machine according to an embodiment of the present invention. As shown in fig. 2, after the washing machine is started, after the clothes put in by the user are weighed, the washing machine is controlled to start water inflow according to the weighing data, in the process, the inner cylinder of the washing machine is kept still until the water amount reaches the set water amount, the water inflow is finished, the washing machine is kept still for 30S after the water inflow is finished, and at this time, the current water level frequency L1 (a water level signal detected by a water level sensor) is measured. When the water amount reaches the set water amount, the washing machine starts to heat and wash and synchronously carries out periodic rotation. When the rotation time reaches 1min (the first preset time), standing for 30s, continuously heating in the process, and keeping the inner cylinder still. After leaving the tank for 30 seconds, the water level frequency was measured again, and the water level frequency L2 was measured.
And comparing whether the difference Delta L between L2 and L1 is greater than 50Hz (a preset threshold), and determining that no high bubbles are generated when the Delta L is less than or equal to 50Hz, wherein the washing machine operates in a normal state until the whole program is finished. When the Delta L is more than 50Hz, the washing machine enters a foam judging state to further judge whether high foam exists. At this time, the motor starts to operate at the (first preset rotation speed) rotation speed v1 for 10s (fourth preset time). Comparing the power of the motor at the moment, and returning to the stage of judging the Delta L again if the power is consistent in a conventional state, namely W is less than or equal to W1; if the motor power W is larger than W1, the washing machine is judged to be in a high foam state in the state, and the washing machine enters a defoaming program.
After the washing machine enters a defoaming program, the washing machine simultaneously opens the water discharge pump and the water inlet valve, water enters from the door seal spray header, the water discharge pump is kept continuously open, foam is discharged in a mode of water inlet and water discharge, and in the process, the washing machine motor rotates to drive the washing machine inner barrel to operate according to the rotating speed v2 (second preset rotating speed). When the defoaming operation time reaches a set value t, the whole defoaming program is ended.
Fig. 3 is a block diagram of an embodiment of a control device of a washing machine according to the present invention. As shown in fig. 3, the washing machine control device 100 includes a water inlet unit 110, a first detection unit 120, a heated washing unit 130, a second detection unit 140, a judgment unit 150, and an execution unit 160.
The water inlet unit 110 is used for controlling the water inlet of the washing machine according to the weight of the laundry after the washing machine is started; the first detecting unit 120 is configured to detect a first water level frequency of the washing machine after the water inlet unit controls the washing machine to completely feed water.
Specifically, after the washing machine is started and clothes to be washed put in by a user are weighed, the water inlet unit 110 controls the washing machine to start water inlet according to the weighing data, in the process, the inner drum of the washing machine is kept still until the water amount reaches a set water amount (i.e., the water amount determined according to the weight of the clothes), and the water inlet is finished, at this time, the first detection unit 120 detects the current first water level frequency L1 (an electric signal detected by the water level sensor). Alternatively, to ensure the detection accuracy, the first detecting unit 120 detects the current first water level frequency L1 after the water inlet unit 110 controls the washing machine to completely feed water and stands still for a second preset time (for example, 30S).
The heating and washing unit 130 is used for controlling the washing machine to heat and wash the laundry for a first preset time; the second detecting unit 140 is used for detecting a second water level frequency of the washing machine after the heated washing for a first preset time.
Specifically, the heating and washing unit 130 controls the washing machine to heat the laundry and synchronously controls the inner drum to periodically rotate to wash the laundry, and after the laundry is heated and washed for a first preset time, the second detection unit 140 detects a second water level frequency of the washing machine. Heating can help the speed of foam generation, shorten judgement time. The heating in the washing process is helpful to improve the activity of the detergent and improve the washing effect. Alternatively, the second detecting unit 140 detects the second water level frequency of the washing machine after the heating and washing unit 130 controls the washing machine to heat and wash the laundry for a first preset time and then stands for a second preset time. Namely, after the heating washing is carried out for the first preset time, the inner cylinder is controlled to stop rotating, and after the standing washing is carried out for the second preset time, the second water level frequency of the washing machine is detected. Optionally, the washing machine is controlled to continuously heat the laundry during a second preset time of standing.
The judging unit 150 is configured to judge whether the washing bubbles generated by the washing machine are in a preset state according to the first water level frequency and the second water level frequency.
The preset state may be a high bubble state. In some embodiments, the determining unit 150 determines whether the washing bubbles generated from the washing machine are in a preset state, i.e., a high bubble state, according to the difference between the second water level frequency and the first water level frequency. That is, the amount of foam is reflected by the change in the frequency of the water level after the heated washing. Since the foam is generated from water, the more foam, the lower the water content. For example, when no foam is generated, the water level frequency is 3600Hz, and after the foam is generated, part of water becomes foam, the water level drops, the water level frequency rises, becoming 3800Hz (the water level frequency value is smaller as the water amount is larger). Therefore, the amount of foam can be judged by detecting the change of the water level frequency, and when the water level frequency has large change, the foam can be used as the judgment basis of high foam.
Specifically, the determining unit 150 determines whether a difference between the second water level frequency and the first water level frequency is greater than a preset threshold; and if the difference value is judged to be less than or equal to the preset threshold value, determining that the washing foam generated by the washing machine is not in a preset state. If the difference value is larger than the preset threshold value, controlling a motor of the washing machine to operate for a third preset time according to the first preset rotating speed; and determining whether the washing foam generated by the washing machine is in a preset state according to the motor power when the motor runs for a third preset time. And if the power of the motor is greater than a preset power value, determining that washing foam generated by the washing machine is in a preset state. Optionally, the first preset rotation speed v1 is more than or equal to 93 rpm.
For example, it is judged whether a difference Δ L between the second water level frequency L2 and the first water level frequency L1 is greater than 50Hz (a preset threshold), and when Δ L ≦ 50Hz, it is determined that there is no high bubble. When Δ L > 50Hz, the presence or absence of high foaming is further judged. At this time, the motor starts to operate for 10s (third preset time) at a (first preset rotating speed) rotating speed v1, and v1 is more than or equal to 93 rpm. Judging whether the motor power W is larger than a preset power value W1, if W is not larger than W1, the heating washing unit 130 and the second detection unit 140 execute the functions again, and the judgment unit 150 judges whether the washing foam generated by the washing machine is in a preset state according to the first water level frequency and the second water level frequency; if the motor power W is larger than W1, the washing machine is judged to be in a high-foam state.
The execution unit 160 is configured to control the washing machine to execute a preset defoaming program if the determination unit 150 determines that the washing foam generated by the washing machine is in a preset state.
If the determining unit 150 determines that the washing bubbles generated from the washing machine are not in the preset state, the executing unit 160 controls the washing machine to execute a preset washing program; if the determining unit 150 determines that the washing bubbles generated by the washing machine are in a preset state, the executing unit 160 controls the washing machine to execute a preset defoaming program.
In some embodiments, the controlling the washing machine to execute the preset defoaming program by the execution unit 160 may specifically include: and controlling a water inlet valve and a drainage pump of the washing machine to be opened simultaneously, and controlling a motor of the washing machine to operate according to a second preset rotating speed. The execution unit 160 controls the washing machine to exit the defoaming program when the time for controlling the washing machine to execute the defoaming program reaches a preset defoaming time. Optionally, the second preset rotating speed v2 is more than or equal to 200 rpm.
Specifically, after the washing machine enters the defoaming procedure, the execution unit 160 simultaneously opens the drainage pump and the inlet valve of the washing machine, wherein water enters from the door seal spray header during the water inlet process. And (4) keeping the drainage pump continuously opened, and discharging bubbles in a mode of water inlet and water discharge. Since a lot of detergent is fully blended into the laundry, in the process, the execution unit 160 controls the washing machine motor to rotate, so as to drive the washing machine inner barrel to operate according to the (second preset rotation speed) rotation speed v 2. Due to the centrifugal force, the detergent in the load is pushed out of the laundry, dissolved by dilution of the water flow, and discharged out of the washing machine through the drain pump.
Since the foam is lighter in weight than water, in this state, a long time of operation is required to achieve the effect of eliminating the foam. And when the defoaming time reaches the preset defoaming time t, finishing the whole defoaming procedure, and subsequently performing a clothes rinsing stage to clean residual detergent.
The invention also provides a storage medium corresponding to the control method of the washing machine, wherein a computer program is stored on the storage medium, and the program is used for realizing the steps of any one of the methods when being executed by a processor.
The invention also provides a washing machine corresponding to the washing machine control method, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of any one of the methods.
The invention also provides a washing machine corresponding to the washing machine control device, which comprises any one of the washing machine control devices.
Therefore, according to the scheme provided by the invention, whether washing foam of the washing machine is in a high foam state is preliminarily determined according to the change of the water level frequency of the washing machine, whether foam eliminating operation is executed is further determined according to the motor frequency, and the foam eliminating operation is carried out by simultaneously feeding water and discharging water, so that the washing foam can be eliminated on the premise of not increasing the hardware cost.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and the parts serving as the control device may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A control method of a washing machine, comprising:
a water inlet step, which is used for controlling the water inlet of the washing machine according to the weight of the clothes to be washed after the washing machine is started;
a first detection step, which is used for detecting the first water level frequency of the washing machine after controlling the washing machine to finish water feeding;
a heating washing step for controlling the washing machine to heat and wash the clothes to be washed for a first preset time;
a second detection step for detecting a second water level frequency of the washing machine after the heating washing for a first preset time;
a judging step for judging whether the washing foam generated by the washing machine is in a preset state according to the first water level frequency and the second water level frequency;
and an executing step for controlling the washing machine to execute a preset defoaming program if the washing foam generated by the washing machine is judged to be in a preset state.
2. The method of claim 1,
after controlling the washing machine to completely feed water, standing for a second preset time, and detecting the first water level frequency of the washing machine;
and/or the presence of a gas in the gas,
and after controlling the washing machine to heat and wash the clothes to be washed for a first preset time and standing for a second preset time, detecting a second water level frequency of the washing machine.
3. The method of claim 1, wherein determining whether the wash bubbles generated from the washing machine are in a preset state according to the first water level frequency and the second water level frequency comprises:
judging whether the difference value of the second water level frequency and the first water level frequency is greater than a preset threshold value or not;
if the difference value is judged to be less than or equal to a preset threshold value, determining that washing foam generated by the washing machine is not in a preset state;
if the difference value is larger than the preset threshold value, controlling a motor of the washing machine to operate for a third preset time according to the first preset rotating speed;
determining whether washing foam generated by the washing machine is in a preset state according to the motor power when the motor runs for a third preset time;
and if the power of the motor is greater than a preset power value, determining that washing foam generated by the washing machine is in a preset state.
4. The method according to any one of claims 1 to 3, wherein controlling the washing machine to perform a preset defoaming procedure comprises:
controlling a water inlet valve and a drainage pump of the washing machine to be opened simultaneously, and controlling a motor of the washing machine to operate according to a second preset rotating speed;
and when the time for controlling the washing machine to execute the defoaming program reaches the preset defoaming time, controlling the washing machine to exit the defoaming program.
5. A washing machine control device characterized by comprising:
the water inlet unit is used for controlling the water inlet of the washing machine according to the weight of the clothes to be washed after the washing machine is started;
the first detection unit is used for detecting the first water level frequency of the washing machine after the water inlet unit controls the washing machine to completely feed water;
the heating washing unit is used for controlling the washing machine to heat and wash the clothes to be washed for a first preset time;
a second detection unit for detecting a second water level frequency of the washing machine after the heating washing for a first preset time;
a judging unit for judging whether the washing foam generated by the washing machine is in a preset state according to the first water level frequency and the second water level frequency;
and the execution unit is used for controlling the washing machine to execute a preset defoaming program if the judgment unit judges that the washing foam generated by the washing machine is in a preset state.
6. The apparatus of claim 5,
after the water inlet unit controls the washing machine to completely feed water, standing for a second preset time, and detecting the first water level frequency of the washing machine by the first detection unit;
and/or the presence of a gas in the gas,
after the heating washing unit controls the washing machine to heat and wash the clothes to be washed for a first preset time and then stands for a second preset time, the second detection unit detects the second water level frequency of the washing machine.
7. The apparatus of claim 5, wherein the judging unit judging whether the wash bubbles generated from the washing machine are in a preset state according to the first water level frequency and the second water level frequency comprises:
judging whether the difference value of the second water level frequency and the first water level frequency is greater than a preset threshold value or not;
if the difference value is judged to be less than or equal to a preset threshold value, determining that washing foam generated by the washing machine is not in a preset state;
if the difference value is larger than the preset threshold value, controlling a motor of the washing machine to operate for a third preset time according to the first preset rotating speed;
determining whether washing foam generated by the washing machine is in a preset state according to the motor power when the motor runs for a third preset time;
and if the power of the motor is greater than a preset power value, determining that washing foam generated by the washing machine is in a preset state.
8. The apparatus of any one of claims 5 to 7, wherein the execution unit controls the washing machine to execute a preset defoaming program, comprising:
controlling a water inlet valve and a drainage pump of the washing machine to be opened simultaneously, and controlling a motor of the washing machine to operate according to a second preset rotating speed;
and when the time for controlling the washing machine to execute the defoaming program reaches the preset defoaming time, controlling the washing machine to exit the defoaming program.
9. A storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
10. A washing machine comprising a processor, a memory and a computer program stored on the memory and operable on the processor to carry out the steps of the method of any of claims 1 to 4 when the program is executed by the processor or comprising a washing machine control apparatus according to any of claims 5 to 8.
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