CN112899985A - Washing machine - Google Patents
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- CN112899985A CN112899985A CN201911137484.3A CN201911137484A CN112899985A CN 112899985 A CN112899985 A CN 112899985A CN 201911137484 A CN201911137484 A CN 201911137484A CN 112899985 A CN112899985 A CN 112899985A
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Abstract
The invention discloses a washing machine, comprising: a housing; a washing tub disposed within the cabinet, the washing tub having a washing space formed therein; the driving mechanism is arranged in the machine shell and used for driving the washing barrel to rotate around the shaft; a vibration detecting device disposed in the cabinet for detecting an amplitude signal of the washing tub; and the controller is configured to control the driving mechanism to rotate according to a set rotating speed, receive an amplitude signal detected by the vibration detection device when the driving mechanism drives the driving mechanism to rotate, and judge the material type and/or weight of the clothes in the washing space according to the amplitude signal. According to the washing machine, the weight of the clothes is judged according to different impacts on the bottom of the washing barrel after the clothes are lifted to a certain height in the washing barrel, and the weighing precision is high. The scheme does not need to mark the clothes for judging the material of the clothes, is not limited by external conditions and has universality.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a washing machine.
Background
The washing machine is a cleaning appliance for washing clothes by using mechanical action generated by electric energy, has been a common washing appliance, has been in families of thousands of people for a long time, and becomes one of essential household appliances in daily life of people. With the development of the washing machine technology, the washing machine tends to be in an intelligent and washing precise design, and the precise washing function of the washing machine is gradually improved.
The accurate washing and intelligent washing of the washing machine are improved, the weight of clothes is monitored, the material of the clothes is identified, and the washing time and the water level are determined according to the weight and the material of the clothes. The present weighing mode of the washing machine monitors the weight of clothes through the power change of a motor, and the larger the power is, the larger the weight is. The main material is disconnected through the mode of clothing moisture content height to present material identification mode, perhaps passes through the main material of RFID label discernment clothing.
The prior art mainly has the following defects: through the mode of motor power change monitoring clothing weight, power change when the motor weighs has very big relation with the belt elasticity, and the belt of different elasticities can produce very big influence to the fuzzy curve of weighing, influences the degree of accuracy of weighing. The material is judged by utilizing the moisture content of the clothes, if the inner drum is filled with water but does not reach the washing water level, water is required to be supplemented for many times, and the washing time is prolonged. If the major material of the clothes is identified by using the RFID tag, since most clothes on the market do not have the tag, the method has very limited application, and the tag may affect the wearing comfort. Because the detection and judgment of the parameters have errors, the program computer board can not accurately design various washing parameters and can not achieve accurate washing, and therefore, the parameters such as the amount of the washing agent, the washing water level, the temperature, the time, the rinsing times, the dewatering time, the drying temperature, the drying time and the like need to be set by a user, and the operation is complex.
Disclosure of Invention
In order to solve the technical problems that a washing machine in the prior art is poor in clothes weighing precision and limited in material judgment, the invention provides the washing machine, the material and the weight of clothes are judged according to different impacts on the bottom of a washing barrel after the clothes are lifted to a certain height in the washing barrel, the weighing precision is high, and the material judgment is not limited by the outside.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides a washing machine, including:
a housing;
a washing tub disposed within the cabinet, the washing tub having a washing space formed therein;
a driving mechanism disposed in the cabinet for driving the washing tub to rotate around a shaft;
a vibration detecting device disposed in the cabinet for detecting an amplitude signal of the washing tub;
and the controller is configured to control the driving mechanism to rotate according to a set rotating speed, receive an amplitude signal detected by the vibration detection device when the driving mechanism drives the driving mechanism to rotate, and judge the type and/or weight of the clothes in the washing space according to the amplitude signal.
Furthermore, the types of the clothes materials are divided into a plurality of types according to the density and/or the roughness, wherein the types at least comprise a first type and a second type, and the density or the roughness of the first type is smaller than that of the second type;
the controller controls the driving mechanism to rotate according to v1, the vibration detection device detects the current amplitude signal as h1, and the controller compares h1 with a first threshold p1, wherein p1 is greater than 0;
if h1 is less than p1, the clothes material type is judged to be the first type, otherwise, the clothes material type is judged to be the second type.
Further, the method comprises a step of dividing a weight interval, which at least comprises a first weight interval and a second weight interval, wherein the value of the first weight interval is smaller than that of the second weight interval, and when the type of the clothes material is judged to be of a second type, the method also comprises a step of judging the weight of the clothes, and the method comprises the following steps:
compare h1 to a second threshold p 2:
if h1 < p2, judging that the weight of the clothes is in a first weight interval, otherwise, judging that the weight of the clothes is in a second weight interval, wherein p2 > p 1.
Further, when the type of the material of the clothes is the first type, the method also comprises the step of judging the weight of the clothes, and the method comprises the following steps:
the controller controls the driving mechanism to rotate according to v2, the vibration detection device detects that the current amplitude signal is h2, the controller compares h2 with h1, if the difference value between h2 and h1 is not larger than a set error value, the weight of clothes is judged to be in a first weight interval, if h2 is larger than h1 and the difference value between h2 and h1 is larger than the set error value, the weight of clothes is judged to be in a second weight interval, wherein v2 is larger than v 1.
Further, when the material type of the clothes is the first type, the method further comprises the step of correcting the material type of the clothes, and the method comprises the following steps:
the controller controls the driving mechanism to rotate according to v3, the vibration detection device detects that the current amplitude signal is h3, the controller compares h3 with h2, if h3 is less than h2, the last judgment result of the clothes material type is maintained, otherwise, the clothes material type is corrected to be of a second type, wherein v3 is greater than v 2.
Further, when the type of the material of the clothes is the second type, the method also comprises the step of preliminarily correcting the weight of the clothes, and comprises the following steps:
the controller controls the driving mechanism to rotate according to v2, the vibration detection device detects that the current amplitude signal is h4, the controller compares h4 with h1, if the difference value between h4 and h1 is not larger than a set error value, the previous clothes weight judgment result is maintained, and if h4 is larger than h1 and the difference value is larger than the set error value, the clothes weight is corrected: if the previous clothes weight is judged to be in the first weight interval, the current correction is in the second weight interval, and if the previous clothes weight is judged to be in the second weight interval, the current correction is in the third weight interval, wherein v2 is larger than v1, and the value of the third weight interval is larger than that of the second weight interval.
Further, when the type of the material of the clothes is the second type, the method also comprises the step of correcting the weight of the clothes again, and the method comprises the following steps: the controller controls the driving mechanism to rotate according to v4, the vibration detection device detects that the current amplitude signal is h5, the controller compares h5 with h4, if h5 is not larger than h4, the result in the step of preliminarily correcting the weight of the clothes is maintained, if h5 is larger than h4, the weight of the clothes is corrected again, if the weight of the clothes in the step of preliminarily correcting the weight of the clothes is judged to be in the first weight interval, the clothes is corrected to the second weight interval this time, if the weight of the clothes in the step of preliminarily correcting the weight of the clothes is judged to be in the second weight interval, the clothes is corrected to the third weight interval this time, if the weight of the clothes in the step of preliminarily correcting the weight of the clothes is judged to be in the third weight interval, the clothes is corrected to the fourth weight interval this time, wherein v4 is larger than v3, and the value of the fourth weight interval is larger than the value of the third weight interval.
Further, when the type of the material of the clothes is the second type, the method also comprises a step of correcting the weight of the clothes for the third time, and the method comprises the following steps: the controller controls the driving mechanism to rotate according to v5, the vibration detection device detects that the current amplitude signal is h6, the controller compares h6 with h5, and if h6 is not greater than h5, the controller maintains the result in the step of correcting the weight of the laundry again.
Further, the vibration detection device is one or more acceleration sensors or photoelectric sensors.
Further, the controller selects and sets washing parameters according to the material type and/or weight of the clothes in the washing space, wherein the washing parameters comprise one or more of parameters of detergent amount, water level of inlet water, washing temperature, washing time, rinsing times, dewatering speed and time, drying temperature and drying time.
Compared with the prior art, the technical scheme of the invention has the following technical effects: according to the washing machine, the weight of the clothes is judged according to different impacts on the bottom of the washing barrel after the clothes are lifted to a certain height in the washing barrel, and the weighing precision is high. The frictional force that can utilize the clothing of different materials and washtub inner wall is different, embodies the height difference that the clothing of different materials promoted under specific rotational speed at the washtub, and the impact that causes the washtub bottom is different correspondingly, judges the material of clothing in view of the above, and this scheme need not to do the sign to the clothing to the judgement of clothing material, does not receive external condition's restriction, more has the universality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a washing machine according to an embodiment of the present invention;
fig. 2 is a block diagram illustrating an electric signal transmission principle in an embodiment of the washing machine according to the present invention;
FIG. 3 is a flow chart illustrating the determination of the material and weight of the laundry in an embodiment of the washing machine according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
Example one
As shown in fig. 1, the washing machine of the present embodiment includes a cabinet 11, a washing tub 12, a driving mechanism, a vibration detecting device and a controller, wherein the driving mechanism and the vibration detecting device are disposed outside the washing tub 12 and inside the cabinet 11, not shown in fig. 1 due to shielding, and the controller is enclosed in a control board chamber inside the cabinet, not shown in fig. 1 due to shielding, and the electrical connection relationship among the driving mechanism, the vibration detecting device and the controller is as shown in fig. 2. The washing machine should further include a door 13 for sealing or opening the washing tub 12. The washing machine in the present embodiment is particularly a drum washing machine.
The washing tub 12 is disposed in the cabinet 11, a washing space is formed in the washing tub 12, and when washing, laundry needs to be put into the washing space of the washing tub 12, and the washing tub 12 rotates around a shaft to perform washing, spin-drying, and other functions of the laundry.
The driving mechanism is used for driving the washing barrel to rotate around the shaft, and the driving mechanism can be realized by adopting a power mechanism which can utilize electric energy to do work outwards, such as a motor.
The vibration detection device can be realized by one or more acceleration sensors or photoelectric sensors, and can accurately detect the multidirectional amplitude brought by the beating force of clothes in the washing drum without limiting the number or types of the sensors.
The controller selects and sets washing parameters according to the material type and/or weight of clothes in the washing space, wherein the washing parameters comprise any combination of parameters including but not limited to the quantity of detergent, the water level of inlet water, the washing temperature, the washing time, the rinsing times, the dehydration rotating speed and time, the drying temperature and the drying time.
After the controller acquires the material and the weight of the clothes, the program operation parameters can be set automatically according to the material and the weight, extra operation is not needed, and hands are liberated. When the clothes can be washed clean, unnecessary detergent addition, washing water, power consumption and the like are greatly reduced, and energy is saved. In addition, the fabric can also play a role in protecting clothes, and if the fabric is judged to be made of silk, the fabric can be protected by controlling the heating temperature not to be too high or not to be heated.
The vibration detecting means is provided in the cabinet 11 for detecting an amplitude signal of the washing tub 12. When the washing tub 12 rotates, the laundry is in different states in the washing space according to the different rotation speeds of the washing tub 12, which mainly includes the following conditions:
when the rotation speed of the washing tub 12 is low, the washing tub slides along the sidewall of the inner tub, and at this time, the impact of the laundry on the bottom of the washing tub 12 is weak, and the amplitude signal detected by the corresponding vibration detecting device is weak.
When the rotation speed of the washing tub 12 is proper, the laundry is lifted to a certain height by the washing tub 12 under the action of the friction force between the laundry and the washing tub, and the laundry falls to the bottom of the washing tub 12 from the height under the action of gravity, so that the impact of the laundry on the bottom of the washing tub 12 is strong, and the amplitude signal detected by the corresponding vibration detection device is strong. And the height at which the laundry is lifted is different, the material of the laundry is different, and the impact on the bottom of the washing tub 12 when the laundry is dropped is also different.
When the rotation speed of the washing tub 12 is high, the laundry may rotate along with the washing tub 12 under the centrifugal force, and at this time, the laundry may not drop by gravity, so that the laundry may not be impacted on the washing tub 12, and the amplitude signal may not be detected or may not be weak by the corresponding vibration detecting device.
Based on the principle, according to the clothing in this embodiment after being promoted to a take the altitude in the washtub, can be different to the impact that the washtub bottom caused, judge the weight of clothing in view of the above, the precision of weighing is high. The frictional force that can utilize the clothing of different materials and washtub inner wall is different, embodies the height difference that the clothing of different materials promoted under specific rotational speed at the washtub, and the impact that causes the washtub bottom is different correspondingly, judges the material of clothing in view of the above, and this scheme need not to do the sign to the clothing to the judgement of clothing material, does not receive external condition's restriction, more has the universality.
The controller is configured to control the driving mechanism to rotate according to a set rotating speed, receive an amplitude signal detected by the vibration detection device when the driving mechanism drives the driving mechanism to rotate, and judge the type and/or weight of the clothes in the washing space according to the amplitude signal. The controller may be a main controller of the washing machine, or may be a control module additionally configured to cut off the material type and/or weight of the laundry in the washing space.
The clothes are made of various materials, the materials comprise cotton, hemp, silk, chemical fiber and the like according to raw materials, the difference of the clothes made of different materials is mainly reflected by different water absorbability and different surface roughness, and the water absorbability of the materials is in certain relation with the density of the materials.
For example, cotton and hemp materials have high density, high water absorption and rough surface, while silk materials have low density, low water absorption, smooth surface and low roughness, and chemical fiber materials are between the two types. The roughness of the clothes made of different materials is different, so that the friction between the clothes and the inner wall of the washing tub 12 is determined, and the clothes are different in height, which can be correspondingly lifted by the washing tub 12, at the same rotating speed, and further different in vibration caused when the clothes are beaten on the bottom wall of the washing tub 12. In this embodiment, the types of the clothes materials are divided into several types according to the density and/or the roughness, and at least two types are included: a first type and a second type, wherein the density or roughness of the first type is less than the density or roughness of the second type. The first type can be light and smooth silk clothes or partial chemical fiber materials, the second type can be cotton and hemp materials with high density and roughness, or partial chemical fiber materials, certainly, the clothes can be divided into two types, and the clothes can be divided into more than two types in more detail, and the clothes can be protected.
The clothes to be washed and the like are put into the washing barrel 12, the door body 13 is closed, the washing machine is started, and before formal water feeding and washing, the vibration strength caused by that the clothes are lifted to a certain height at different rotating speeds and fall to the bottom of the washing barrel 12 is tested. Including clothing material judgement and clothing weight judgement two big steps in this embodiment, specifically include:
the controller controls the driving mechanism to rotate according to v1, the vibration detection device detects that the current amplitude signal is h1, and the controller compares h1 with a first threshold value p1, wherein p1 is more than 0;
if h1 is less than p1, the clothes material type is judged to be the first type, otherwise, the clothes material type is judged to be the second type.
It should be noted that the speed v1 should be a relatively small rotation speed, and different materials of clothes have different friction with the inner wall of the washing tub 12, at the rotation speed v1, the clothes with rough materials can be lifted to a certain height and can be dropped, while the clothes with light and smooth materials can only slide along the inner tub side wall, or the lifted height is smaller than the former one, it can be understood that the higher the lifted height is, the stronger the vibration generated during dropping is, in this step, the clothes materials are primarily distinguished by controlling the driving mechanism to rotate according to v 1. For the laundry whose detected amplitude signal is smaller than the first threshold value p1, it is judged as the first type, otherwise, it is judged as the second type.
The amount of laundry also directly affects the setting of washing parameters, such as detergent dosage, washing water intake, etc. The amount of laundry may be reflected in weight, i.e., the more laundry, the greater the corresponding weight.
The friction force between the laundry of the same material or with similar roughness and the inner wall of the washing tub 12 is relatively close, and when the laundry is lifted to a similar height at a specific rotation speed of the washing tub 12, the impact force on the washing tub 12 caused by the falling of the laundry with a larger weight is larger than that of the laundry with a smaller weight. The embodiment further includes a step of dividing the weight interval, which at least includes a first weight interval and a second weight interval, wherein the value of the first weight interval is smaller than the value of the second weight interval, and when the type of the laundry is determined to be of the second type, in order to further improve the washing accuracy, the method further includes a step of determining the weight of the laundry, including:
compare h1 to a second threshold p 2:
if h1 < p2, judging that the weight of the clothes is in a first weight interval, otherwise, judging that the weight of the clothes is in a second weight interval, wherein p2 > p 1.
Similarly, when the type of the laundry is the first type, the method further includes a step of determining the weight of the laundry, and since the laundry of the first type cannot be lifted or may be lifted when the rotation speed of the washing tub 12 is v1, the impact on the washing tub 12 due to the light weight is small, and therefore, in order to determine the weight of the laundry of the first type, the method includes the following steps:
the controller controls the driving mechanism to rotate according to v2, the vibration detection device detects that the current amplitude signal is h2, the controller compares h2 with h1, and if the difference value between h2 and h1 is not larger than a set error value, namely the impact of the clothes on the washing tub 12 is close to each other at the speed v1 and the speed v2, which indicates that the weight of the clothes is light, the controller judges that the weight of the clothes is in a first weight interval. If h2 is greater than h1 and the difference between the two values is greater than the predetermined error value, it indicates that the impact of the lifted laundry on washing tub 12 is increased, and indicates that the laundry is heavier, and therefore, it is determined that the laundry is heavier in the second weight range, where v2 > v 1.
In order to prevent the misjudgment of the clothes material type, when the clothes material type is judged to be the first type, the method also comprises the step of correcting the clothes material type, and comprises the following steps:
the controller controls the driving mechanism to rotate according to v3, the vibration detection device detects that the current amplitude signal is h3, the controller compares h3 with h2, wherein v3 is greater than v2, if h3 is less than h2, namely, the rotating speed of the washing tub 12 is further increased, if the detected amplitude signal is weakened, the clothes start to rotate along with the washing tub 12, therefore, the impact on the washing tub 12 is weakened, the clothes can be proved to be really light and thin, and the judgment result of the type of the clothes material at the previous time is maintained. Otherwise, if the detected amplitude signal is enhanced, the judgment result of the previous time is incorrect, and the clothes are corrected to be made of a second type of material with hard and rough fabric, namely, the type of the clothes material is corrected to be the second type.
In order to further improve the detection and judgment precision of the clothes, for example, the first weight interval is a basic weight interval which corresponds to the minimum amount of the washing liquid and the control water inlet, while the second weight interval only indicates that the weight is larger than the basic weight interval, and the weight interval can be further subdivided and corrected, so that the washing parameters are further precisely controlled. When the type of the clothes material is the second type, the method also comprises the step of preliminarily correcting the weight of the clothes, and comprises the following steps:
the clothes with similar material or roughness are closer to the friction force of the inner wall of the washing tub 12, and for heavier clothes, the corresponding lifting height is different under different rotating speeds (especially critical rotating speed) of the washing tub 12, and the lifting height is higher when the rotating speed is higher, and conversely, the lifting height is lower.
The controller controls the driving mechanism to rotate according to v2, the vibration detection device detects that the current amplitude signal is h4, the controller compares h4 with h1, and if the difference value between h4 and h1 is not larger than a set error value, the last clothes weight judgment result is maintained. If h4 is greater than h1 and the difference is greater than the set error value, indicating that the actual weight of the clothes is heavier than the previously determined weight, the weight of the clothes needs to be corrected: if the previous clothes weight is judged to be in the first weight interval, the current correction is in the second weight interval, and if the previous clothes weight is judged to be in the second weight interval, the current correction is in the third weight interval, wherein v2 is larger than v1, and the value of the third weight interval is larger than that of the second weight interval.
Similarly, in order to further improve the accuracy of detecting and judging the clothes, when the type of the material of the clothes is the second type, the method further comprises the step of correcting the weight of the clothes again, and the method comprises the following steps: the controller controls the driving mechanism to rotate according to v4, the vibration detection device detects that the current amplitude signal is h5, the controller compares h5 with h4, if h5 is not larger than h4, the result in the step of primarily correcting the weight of the clothes is maintained, if h5 is larger than h4, the weight of the clothes is corrected again, if the weight of the clothes in the step of primarily correcting the weight of the clothes is judged to be in the first weight interval, the current correction is carried out to the second weight interval, if the weight of the clothes in the step of primarily correcting the weight of the clothes is judged to be in the second weight interval, the current correction is carried out to the third weight interval, if the weight of the clothes in the step of primarily correcting the weight of the clothes is judged to be in the third weight interval, the current correction is carried out to the fourth weight interval, wherein v4 is larger than v3, and the value of the fourth weight interval is larger than the value of the third weight interval.
When the type of the clothes is the second type, the method also comprises a step of correcting the weight of the clothes for the third time, and the method comprises the following steps: the controller controls the driving mechanism to rotate according to v5, the vibration detection device detects that the current amplitude signal is h6, the controller compares h6 with h5, and if h6 is not more than h5, the result in the step of correcting the weight of the clothes again is maintained. When the rotating speed is v5, the rotating speed is a higher rotating speed, almost all clothes made of materials rotate along the inner wall of the washing barrel, and on the basis that the clothes made of the second type of materials are judged to be small in load, if the two vibration signals are equivalent, the correctness of the materials and the weights judged in the prior art is further verified. If h5 is greater than h4, the vibration signal is further strengthened, and it can be determined that the load is heavy load clothes and the weight needs to be corrected further.
The scheme carries out cross contrast analysis on different impact signals caused by clothes with different weights and different materials at the bottom of the washing barrel 12 to obtain accurate weight and materials.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A washing machine, characterized by comprising:
a housing;
a washing tub disposed within the cabinet, the washing tub having a washing space formed therein;
a driving mechanism disposed in the cabinet for driving the washing tub to rotate around a shaft;
a vibration detecting device disposed in the cabinet for detecting an amplitude signal of the washing tub;
and the controller is configured to control the driving mechanism to rotate according to a set rotating speed, receive an amplitude signal detected by the vibration detection device when the driving mechanism drives the driving mechanism to rotate, and judge the type and/or weight of the clothes in the washing space according to the amplitude signal.
2. The washing machine as claimed in claim 1, wherein: the types of the clothes materials are divided into a plurality of types according to the density and/or the roughness, and the types at least comprise a first type and a second type, wherein the density or the roughness of the first type is smaller than that of the second type;
the controller controls the driving mechanism to rotate according to v1, the vibration detection device detects the current amplitude signal as h1, and the controller compares h1 with a first threshold p1, wherein p1 is greater than 0;
if h1 is less than p1, the clothes material type is judged to be the first type, otherwise, the clothes material type is judged to be the second type.
3. The washing machine as claimed in claim 2, wherein: the method also comprises a step of dividing weight intervals, at least comprising a first weight interval and a second weight interval, wherein the value of the first weight interval is smaller than that of the second weight interval, and when the type of the clothes material is judged to be of a second type, the method also comprises a step of judging the weight of the clothes, and comprises the following steps:
compare h1 to a second threshold p 2:
if h1 < p2, judging that the weight of the clothes is in a first weight interval, otherwise, judging that the weight of the clothes is in a second weight interval, wherein p2 > p 1.
4. A washing machine as claimed in claim 3, wherein: when the material type of the clothes is the first type, the method also comprises the step of judging the weight of the clothes, and comprises the following steps:
the controller controls the driving mechanism to rotate according to v2, the vibration detection device detects that the current amplitude signal is h2, the controller compares h2 with h1, if the difference value between h2 and h1 is not larger than a set error value, the weight of clothes is judged to be in a first weight interval, if h2 is larger than h1 and the difference value between h2 and h1 is larger than the set error value, the weight of clothes is judged to be in a second weight interval, wherein v2 is larger than v 1.
5. The washing machine as claimed in claim 4, wherein: when the clothing material type is the first type, the method also comprises the step of correcting the clothing material type, and the method comprises the following steps:
the controller controls the driving mechanism to rotate according to v3, the vibration detection device detects that the current amplitude signal is h3, the controller compares h3 with h2, if h3 is less than h2, the last judgment result of the clothes material type is maintained, otherwise, the clothes material type is corrected to be of a second type, wherein v3 is greater than v 2.
6. A washing machine as claimed in claim 3, wherein: when the type of the clothes material is the second type, the method also comprises the step of preliminarily correcting the weight of the clothes, and comprises the following steps:
the controller controls the driving mechanism to rotate according to v2, the vibration detection device detects that the current amplitude signal is h4, the controller compares h4 with h1, if the difference value between h4 and h1 is not larger than a set error value, the previous clothes weight judgment result is maintained, and if h4 is larger than h1 and the difference value is larger than the set error value, the clothes weight is corrected: if the previous clothes weight is judged to be in the first weight interval, the current correction is in the second weight interval, and if the previous clothes weight is judged to be in the second weight interval, the current correction is in the third weight interval, wherein v2 is larger than v1, and the value of the third weight interval is larger than that of the second weight interval.
7. The washing machine as claimed in claim 6, wherein: when the type of the clothes material is the second type, the method also comprises the step of correcting the weight of the clothes again, and comprises the following steps: the controller controls the driving mechanism to rotate according to v4, the vibration detection device detects that the current amplitude signal is h5, the controller compares h5 with h4, if h5 is not larger than h4, the result in the step of preliminarily correcting the weight of the clothes is maintained, if h5 is larger than h4, the weight of the clothes is corrected again, if the weight of the clothes in the step of preliminarily correcting the weight of the clothes is judged to be in the first weight interval, the clothes is corrected to the second weight interval this time, if the weight of the clothes in the step of preliminarily correcting the weight of the clothes is judged to be in the second weight interval, the clothes is corrected to the third weight interval this time, if the weight of the clothes in the step of preliminarily correcting the weight of the clothes is judged to be in the third weight interval, the clothes is corrected to the fourth weight interval this time, wherein v4 is larger than v3, and the value of the fourth weight interval is larger than the value of the third weight interval.
8. The washing machine as claimed in claim 7, wherein: when the type of the clothes is the second type, the method also comprises a step of correcting the weight of the clothes for the third time, and the method comprises the following steps: the controller controls the driving mechanism to rotate according to v5, the vibration detection device detects that the current amplitude signal is h6, the controller compares h6 with h5, and if h6 is not greater than h5, the controller maintains the result in the step of correcting the weight of the laundry again.
9. A washing machine as claimed in any one of claims 1 to 8, wherein: the vibration detection device is one or more acceleration sensors or photoelectric sensors.
10. A washing machine as claimed in any one of claims 1 to 8, wherein: the controller selects and sets washing parameters according to the material type and/or weight of the clothes in the washing space, and the washing parameters comprise one or more of parameters of detergent amount, water level of inlet water, washing temperature, washing time, rinsing times, dewatering rotating speed and time, drying temperature and drying time.
Priority Applications (1)
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| CN109778486A (en) * | 2017-11-13 | 2019-05-21 | 青岛海尔洗衣机有限公司 | Laundry of washing machine weighing method and washing machine |
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Address after: 266101 No.8, Hisense Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266101 No.8, Hisense Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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