CN109468794B - Method and device for obtaining water inlet time before weighing of pulsator washing machine - Google Patents
Method and device for obtaining water inlet time before weighing of pulsator washing machine Download PDFInfo
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- CN109468794B CN109468794B CN201710799786.1A CN201710799786A CN109468794B CN 109468794 B CN109468794 B CN 109468794B CN 201710799786 A CN201710799786 A CN 201710799786A CN 109468794 B CN109468794 B CN 109468794B
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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
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Abstract
The embodiment of the invention provides a method and a device for obtaining the water advance time before weighing of a pulsator washing machine, and belongs to the technical field of household appliance design. The method comprises the following steps: putting the clothes made of the first material into an inner drum of a pulsator washing machine; according to the water inlet time t of the clothes made of the reference material0Feeding water into the inner barrel; at the time of water inlet t0After the time, water is supplemented into the inner cylinder, and the water supplementing time delta t for obtaining a target nominal weight value is recorded; determining the weighted forward water inlet time t of the pulsator washing machine in a first material mode0+. DELTA.t. By the technical scheme, the water inlet time t of the clothes is determined according to the standard material0And after water is fed into the inner cylinder, water feeding time delta t for obtaining a target nominal weight value is recorded, and accurate water feeding time before weighing can be obtained, so that the accurate weighing is favorable for improving the washing effect and saving water and energy.
Description
Technical Field
The invention relates to the field of household appliance design, in particular to a method and a device for obtaining the water-feeding time before weighing of a pulsator washing machine.
Background
Automatic weighing is a control method in a pulsator washing machine, and aims to measure clothes and feed water. According to the weight of the clothes, the water inflow is judged, the washing efficiency can be effectively improved, and energy and water are saved. Meanwhile, for many washing machine programs, the automatic weighing determines the washing and bleaching times, the washing time, the detergent consumption and the like in the subsequent washing process. The working principle is that under the condition that the inner cylinder is not water, the motor drives the load to operate, when a stop command is sent, the rotor of the motor continues to operate under the action of inertia, and at the moment, the rotor cuts the stator to generate induced potential. The induced potential gradually attenuates and disappears under the damping action of the laundry and the like. The attenuation speed of the induced potential amplitude and the oscillation frequency is different according to different clothes qualities, clothes amount, belt tightness and the like. Generally, the more and harder the garment, the faster the decay. Thereby judging the weight of the laundry.
The inventor of the present application finds that the above-mentioned solution of the prior art has drawbacks in implementing the present invention. In the actual weighing process, the material of the clothes has great influence on the automatic weighing result. For example, terylene and cotton with the same weight, the weighing results are obviously different. In particular, if the weight of the clothes is the same but the friction coefficient of the clothes is very different, the result of weighing the clothes with high friction coefficient is obviously larger than that of the clothes with low friction coefficient, and the weight of the clothes is the same.
In view of the above technical problems, no good solution is available in the prior art.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device, which can accurately determine the water-feeding time before the washing machine is weighed, so that the weighing result is more accurate.
In order to achieve the above object, an embodiment of the present invention provides a method for obtaining a water inlet time before a pulsator washing machine is weighed, wherein the method includes:
putting the clothes made of the first material into an inner drum of a pulsator washing machine;
according to the water inlet time t of the clothes made of the reference material0Feeding water into the inner barrel;
at the time of water inlet t0After the time, water is supplemented into the inner cylinder, and the water supplementing time delta t for obtaining a target nominal weight value is recorded;
determining the weighted forward water inlet time t of the pulsator washing machine in a first material mode0+△t。
Optionally, the reference material is a cotton-flax material.
Optionally, the water inlet time t0The method comprises the steps that for standard material clothes with known weight, water is fed until the water feeding time when the difference value between a weighed value obtained by weighing and the known weight is smaller than or equal to an error threshold value.
Optionally, the water inlet time t0Is a pair ofAnd (3) weighing the clothes made of the standard material with the known weight after different water inlet times, and then weighing the clothes to obtain the water inlet time corresponding to the minimum weighing value in the weighing values.
Optionally, the water supply time Δ t is a water supply time for supplying water to the first material clothes with known weight until a difference value between a weighed value and the known weight is smaller than or equal to an error threshold value.
Optionally, the water supply time Δ t is the water supply time corresponding to the smallest weighing value among weighing values obtained by weighing the clothes made of the first material with known weight after different water supply times are supplied with water.
Optionally, the method comprises said weighing by:
controlling a motor to drive the inner barrel to rotate at a preset speed, and powering down the motor;
acquiring a pulse signal output by the motor during the period from the preset speed to the standstill of the inner cylinder;
the weighing value is characterized by the number of the collected pulse signals.
Optionally, the method comprises:
determining the water advance time for weighing the clothes made of the first materials;
performing linear regression processing on the determined water inlet time before weighing to obtain water inlet time delta t of the clothes made of the first material and the water inlet time t of the reference material0Have the following relationship between:
wherein μ is the friction coefficient of the first material, μ0The coefficient of friction of the reference material.
Optionally, the method comprises:
according to the water supply time delta t of the clothes made of the first material and the water supply time t of the reference material0The relationship between the water supply time and the water supply time is determined;
when mu is less than or equal to mu0When the water is not replenished.
In another aspect, the invention provides a machine readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements the method as described above.
In another aspect, the present invention provides a washing machine comprising an inner tub and a control panel, wherein the control panel comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the method as described above when executing the program.
By the technical scheme, the water inlet time t of the clothes is determined according to the standard material0And after water is fed into the inner cylinder, water feeding time delta t for obtaining a target nominal weight value is recorded, and accurate water feeding time before weighing can be obtained, so that the accurate weighing is favorable for improving the washing effect and saving water and energy.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments 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 embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a flowchart of a method for obtaining a water inlet time before weighing of a pulsator washing machine according to an embodiment of the present invention;
FIG. 2 is a flow chart of an exemplary weighing method provided by an embodiment of the present invention;
FIG. 3 is a flowchart of a method for obtaining a water inlet time before weighing in a pulsator washing machine according to another embodiment of the present invention;
fig. 4 is a flowchart of a method for obtaining a water inlet time before weighing of a pulsator washing machine according to still another embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
It should be noted that the terms "first" and "second" in the description of the present invention are used merely for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention.
One skilled in the art will recognize that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
Fig. 1 is a flowchart of a method for obtaining a water inlet time before weighing of a pulsator washing machine according to an embodiment of the present invention.
The method for obtaining the water inlet time before weighing of the pulsator washing machine, which is provided by the embodiment of the invention and shown in fig. 1, may include:
s101, placing the clothes made of the first material into an inner drum of a pulsator washing machine;
s102, according to the standard material, the clothes water inlet time t0To the inside ofWater is fed into the cylinder;
s103, in the water inlet t0After the time, water is supplemented into the inner cylinder, and the water supplementing time delta t for obtaining a target nominal weight value is recorded;
s104, determining the weighted forward water inlet time t of the pulsator washing machine in a first material mode0+△t。
In an embodiment, the material of the clothing may be any of the following: cotton, acrylic fiber, terylene, wool, down and silk. The first material and the reference material may be selected from among the above materials. In a preferred embodiment, the reference material may be cotton or hemp.
In an embodiment, the water intake time t0The method comprises the steps that for standard material clothes with known weight, water is fed until the water feeding time when the difference value between a weighed value obtained by weighing and the known weight is smaller than or equal to an error threshold value. In one example, the water inlet time t of the reference material clothes can be determined by the following method0. Placing standard material clothes with known weight a in the inner cylinder, and feeding water into the inner cylinder for t0' weighing is performed, the weight a ' of the laundry is determined using the obtained weighing value, and when the difference between the determined weight a ' of the laundry and the actual weight a of the laundry is less than a preset threshold, the t is determined0' Water inlet time t of clothes made of reference material with weight of a0. In an embodiment, time t0' may be any time randomly selected.
In an alternative embodiment, the water intake time t0The weighing method is characterized in that for standard clothes made of a known weight, the water inlet time corresponding to the minimum weighing value in weighing values obtained by weighing after water is fed for different water inlet times is obtained. In one example, the water intake time t0Can be determined by weighing for a plurality of times, for example, a reference material clothes with known weight a is placed in the inner drum, and the water can be respectively fed into the inner drum for a time t1、t2、……、tnThen weighing is carried out to obtain n weighing values a1、a2、……、anSelecting the weighing value (e.g. a2) with the smallest weighing value as the corresponding water inlet time (e.g. t2)Water inlet time t of standard material clothing with weight of a0。
In an embodiment, the water feeding time Δ t is the water feeding time for the first material clothes with known weight, until the difference value between the weighed value and the known weight is less than or equal to the error threshold value. In one example, the water intake time Δ t of the first material laundry may be determined by the following method. The method comprises the steps of placing clothes made of a first material with known weight b in an inner drum, weighing when water inflow time into the inner drum reaches delta t ', determining the weight b' of the clothes by using the obtained weighing value, and determining the delta t 'as the water inflow time delta t of the first material with the weight b when the difference value between the determined weight b' of the clothes and the actual weight b of the clothes is smaller than a preset threshold value. In an embodiment, the time Δ t' may be any time randomly selected.
In an alternative embodiment, the water replenishment time Δ t is the water replenishment time corresponding to the smallest weighing value among the weighing values obtained by weighing after the water replenishment is performed for the first material clothes with the known weight after different water replenishment times. In one example, the water intake time Δ t may be determined by weighing a plurality of times, for example, placing a garment of a first material of known weight b in the inner tub, and separately taking water into the inner tub for the time Δ t1、△t2、……、△tnThen weighing is carried out to obtain n weighing values b1、b2、……、bnFrom which the weighing value (e.g. b) with the smallest weighing value is selected2) Corresponding water intake time (e.g., Δ t)2) The water inlet time delta t of the clothes made of the first material with the weight b.
Fig. 2 is a flowchart of an exemplary weighing method provided by an embodiment of the present invention. As shown in fig. 2, in one example, weighing may be performed by:
s201, controlling a motor to drive the inner cylinder to rotate at a preset speed, and powering down the motor;
s202, collecting a pulse signal output by the motor during the period from the preset speed to the standstill of the inner cylinder;
and S203, characterizing the weighing value by the number of the collected pulse signals.
In an embodiment, the motor may drive the inner cylinder to reach the rotation speed V first0Then cutting off the power supply of the motor to power off the motor, and counting the rotating speed V of the inner cylinder after the motor is powered off0The number of pulses of the pulse signal output from the motor to the complete stop. The weight of the laundry in the drum is determined by the number of pulses using a mapping relationship between the number of pulses and the weight of the laundry. It should be noted that the mapping relationship between the number of pulses and the weight of the laundry may be different for different motor types, for example, for a variable frequency washing machine, the smaller the number of pulse signals, the smaller the weighing value. For a constant frequency washing machine, the more the number of pulse signals is, the smaller the weighing value is. In an alternative embodiment, the number of pulses of the pulse signal may be used directly to characterize the weight of the laundry.
In an embodiment, the known weight of the laundry (reference material or first material) in the above embodiments may be obtained by weighing the laundry using a weighing device such as a scale before the laundry is placed in the drum. In an alternative embodiment, the laundry put into the drum may be weighed by a sensor provided in the washing machine, such as a pressure sensor. In one example, the empty weight of the inner tub of the washing machine and the weight of the tub after the laundry is added may be determined by a pressure sensor disposed at a weighing position such as a rotation shaft of the inner tub, and the difference between the empty weight and the weight is used to obtain a weighing value of the laundry.
Fig. 3 is a flowchart of a method for obtaining a water inlet time before weighing of a pulsator washing machine according to another embodiment of the present invention. In an embodiment, as shown in fig. 3, the method provided by the present invention may further include:
s301, determining the water feeding time before weighing of the clothes made of the first materials;
s302, performing linear regression processing on the determined water inlet time before weighing to obtain water inlet time delta t for the clothes made of the first material and the water inlet time t for the reference material0Have the following relationship between:
wherein μ is the friction coefficient of the first material, μ0The coefficient of friction of the reference material.
In an embodiment, in step S301, steps S101 to S104 shown in fig. 1 may be repeatedly performed for clothes of different materials to determine the water-before-weighing time for clothes of a plurality of first materials.
After the water inlet time before weighing of clothes of different materials is obtained, when the water inlet time before weighing of clothes of any material (such as cotton, acrylic fiber, polyester, wool, down, silk and the like) needs to be determined, the water inlet time before weighing can be achieved through a switch or a knob which is arranged on the washing machine and corresponds to the material of the clothes. In embodiments, the different laundry materials may correspond to selectable functions or modes in the washing machine. In an alternative embodiment, the laundry material may be determined by an external input (e.g., selection in a function or mode of the washing machine). Accordingly, the method may include determining a material of the clothing article in response to an external input.
Fig. 4 is a flowchart of a method for obtaining a water inlet time before weighing of a pulsator washing machine according to still another embodiment of the present invention. As shown in fig. 4, the method provided by the embodiment of the present invention may determine the water replenishing time by the following steps:
s401, according to the water feeding time delta t of the clothes made of the first material and the water feeding time t of the reference material0The relationship between the water supply time and the water supply time is determined;
s402, when mu is less than or equal to mu0When the water is not replenished.
In an embodiment, the water feeding time Δ t of the first material clothes and the water feeding time t of the reference material determined in the step S401 by the steps shown in fig. 3 can be utilized0The relationship between (e.g.,
) And determining the water feeding time delta t.
In an embodiment, the method may further include comparing the friction coefficient μ of the material corresponding to the first material with the friction coefficient μ of the material corresponding to the first materialReference material mu0For example, whether the friction coefficient μ of the material corresponding to the first material is less than or equal to the reference friction coefficient μ of the reference material0. In an embodiment, when μ is less than or equal to μ0The time can be based on the water feeding time Deltat of the clothes made of the first material and the water feeding time t of the reference material0The relationship between the water supply time and the water supply time determines the water supply time deltat.
By the technical scheme, the water inlet time t of the clothes is determined according to the standard material0And after water is fed into the inner cylinder, water feeding time delta t for obtaining a target nominal weight value is recorded, and accurate water feeding time before weighing can be obtained, so that the accurate weighing is favorable for improving the washing effect and saving water and energy.
In another aspect of the embodiments of the present invention, there is also provided a machine-readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the method as described above.
In another aspect of the embodiments of the present invention, there is also provided a washing machine including an inner tub and a control board, wherein the control board includes a memory, a processor and a computer program stored in the memory and running on the processor, and the processor implements the method as described above when executing the program. In an embodiment, the washing machine is a pulsator washing machine.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A method for obtaining the water-feeding time before weighing of a pulsator washing machine is characterized by comprising the following steps:
putting the clothes made of the first material into an inner drum of a pulsator washing machine;
according to the water inlet time t of the clothes made of the reference material0Feeding water into the inner barrel;
at the time of water inlet t0After the time, water is supplemented into the inner cylinder, and the water supplementing time delta t for obtaining a target nominal weight value is recorded;
determining the weighted forward water inlet time t of the pulsator washing machine in a first material mode0+△t。
2. The method of claim 1, wherein the reference material is a cotton-flax material.
3. Method according to claim 1, characterized in that said water intake time t0The method comprises the steps that for standard material clothes with known weight, water is fed until the water feeding time when the difference value between a weighed value obtained by weighing and the known weight is smaller than or equal to an error threshold value.
4. The method of claim 1, wherein the method is performed in a batch modeCharacterized in that the water inlet time t0The weighing method is characterized in that for standard clothes made of a known weight, the water inlet time corresponding to the minimum weighing value in weighing values obtained by weighing after water is fed for different water inlet times is obtained.
5. The method according to claim 1, wherein the water feeding time Δ t is a water feeding time for a first material garment of a known weight, until a difference between a weighed value and the known weight is less than or equal to an error threshold.
6. The method according to claim 1, wherein the water replenishment time Δ t is the water replenishment time corresponding to the smallest weighing value among the weighing values obtained by weighing the clothes made of the first material with known weight after the water is replenished for different water replenishment times.
7. Method according to claim 4 or 6, characterized in that it comprises said weighing by:
controlling a motor to drive the inner barrel to rotate at a preset speed, and powering down the motor;
acquiring a pulse signal output by the motor during the period from the preset speed to the standstill of the inner cylinder;
the weighing value is characterized by the number of the collected pulse signals.
8. A method according to any of claims 1-6, characterized in that the method comprises:
determining the water advance time for weighing the clothes made of the first materials;
performing linear regression processing on the determined water inlet time before weighing to obtain water inlet time delta t of the clothes made of the first material and the water inlet time t of the reference material0Have the following relationship between:
wherein μ is the friction coefficient of the first material, μ0The coefficient of friction of the reference material.
9. The method of claim 8, wherein the method comprises:
according to the water supply time delta t of the clothes made of the first material and the water supply time t of the reference material0The relationship between the water supply time and the water supply time is determined;
when mu is less than or equal to mu0When the water is not replenished.
10. A machine readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of any one of claims 1-9.
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| CN111945377B (en) * | 2020-08-17 | 2022-08-26 | 珠海格力电器股份有限公司 | Weighing method of washing machine, washing machine and computer readable storage medium |
| CN112726116B (en) * | 2020-12-23 | 2021-12-21 | 珠海格力电器股份有限公司 | Washing machine and weighing method |
| CN114438717B (en) * | 2022-01-06 | 2023-02-28 | 珠海格力电器股份有限公司 | Washing control method and device of washing equipment, washing machine and storage medium |
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