CN109778486A - Laundry of washing machine weighing method and washing machine - Google Patents
Laundry of washing machine weighing method and washing machine Download PDFInfo
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- CN109778486A CN109778486A CN201711114773.2A CN201711114773A CN109778486A CN 109778486 A CN109778486 A CN 109778486A CN 201711114773 A CN201711114773 A CN 201711114773A CN 109778486 A CN109778486 A CN 109778486A
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- 238000005406 washing Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005303 weighing Methods 0.000 title claims abstract description 29
- 238000012986 modification Methods 0.000 claims abstract description 28
- 230000004048 modification Effects 0.000 claims abstract description 28
- 238000013507 mapping Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims description 10
- 238000012549 training Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a kind of laundry of washing machine weighing method and washing machines, after washing machine is put into clothing, washing machine is controlled to rotate with the setting speed that clothes weight is greater than centrifugal force, obtain the vibration data of vibrating sensor detection in rotation process, washing machine outer cylinder the first amplitude in a first direction is calculated based on vibration data, amplitude and the mapping table of clothes weight is searched and determines that the corresponding clothes weight of the first amplitude is the weight of clothing；The amplitude of washing machine outer cylinder and the corresponding relationship of clothes weight are obtained by training according to the data largely tested repeatedly, when washing machine is rotated with setting speed, obtain the vibration data of the washing machine outer cylinder of vibrating sensor detection, and washing machine outer cylinder is calculated according to vibration data, the amplitude that vibration generates occurs, and inquire the mapping table of amplitude and clothes weight, in conjunction with the weight of modification rule corrected accurately to determine clothing, the technical problem of existing laundry of washing machine weighing inaccuracy is solved.
Description
Technical field
The invention belongs to washing machine technology fields, specifically, being to be related to a kind of laundry of washing machine weighing method and laundry
Machine.
Background technique
In the washing procedure of existing washing machine, can all there be the step of clothing weighing before water inlet.
The purpose of laundry of washing machine weighing is, knows the weight of clothing, by weighing so as to according to the weight of clothing
The automatic setting of amount suitable inflow, dosage of scour etc.；Specifically, being usually the motor after washing machine is put into clothing starting
After turning to setting speed start to brake, is sentenced the variation of this current value in the process for zero to revolving speed by starting brake
The weight of disconnected clothing.
The method of existing this clothing weighing needs to carry out a large amount of electric current correlation values and calculates, but in fact, due to
Clothing position is different, and the current value generated in weighing process is also different, will lead to judgement and makes a fault, can not accurately judge
The weight of clothing.
Summary of the invention
This application provides a kind of laundry of washing machine weighing method and washing machines, and it is inaccurate to solve existing laundry of washing machine weighing
True technical problem.
In order to solve the above technical problems, the application is achieved using following technical scheme:
It is proposed a kind of laundry of washing machine weighing method, comprising: after washing machine is put into clothing, controls washing machine and turn with setting speed
It is dynamic；Obtain the vibration data of vibrating sensor detection；The washing machine outer cylinder is calculated in a first direction based on the vibration data
On the first amplitude；The mapping table for searching amplitude and clothes weight, determines that the corresponding clothes weight of first amplitude is
The weight of the clothing.
Further, the setting speed is the revolving speed that clothing gravity is greater than centrifugal force.
Further, the setting speed includes positive setting speed and reversed setting speed；Then it is based on the vibration number
According to calculating the first amplitude of the washing machine outer cylinder in a first direction, specifically: based on the vibration data calculate described in wash
The first amplitude of forward direction and reversed first amplitude of clothing machine outer cylinder in a first direction；Then determine the corresponding clothing of first amplitude
Weight is the weight of the clothing, specifically: the mapping table of the amplitude and clothes weight is searched, determines that forward direction first is shaken
The corresponding clothes weight corresponding with reversed first amplitude of width；The clothing is determined based on weight equation W=a*D11+b*D22
Weight；Wherein, D11 is the corresponding clothes weight of positive first amplitude, D22 is the corresponding clothes weight of reversed first amplitude,
A, b are weight coefficient.
Further, to calculate the first amplitude of the washing machine outer cylinder in a first direction based on the vibration data same
When, the method also includes: the second amplitude of the washing machine outer cylinder in a second direction is calculated based on the vibration data；Sentence
Whether second amplitude that breaks is greater than the first given threshold；If so, true in the mapping table for searching amplitude and clothes weight
When the corresponding clothes weight of fixed first amplitude, the weight of clothing is determined based on the first modification rule；Wherein, the second party
To vertical with the first direction.
Further, to calculate the second amplitude of the washing machine outer cylinder in a second direction based on the vibration data same
When, the method also includes: three amplitudes of the washing machine outer cylinder on third direction are calculated based on the vibration data；Judgement
Whether the third amplitude is greater than the second given threshold；If so, being determined in the mapping table for searching amplitude and clothes weight
When the corresponding clothes weight of first amplitude, the weight of clothing is determined based on first modification rule and the second modification rule
Amount；Wherein, the third direction is the two-dimensional coordinate system plane constituted perpendicular to the first direction and the second direction.
A kind of washing machine is proposed, including control module, the vibrating sensor for being installed on washing machine outer cylinder, the first magnitude determinations
Module, memory module, enquiry module and clothes weight determining module；The control module, for after washing machine is put into clothing,
Control washing machine is rotated with setting speed；The vibrating sensor, for obtaining the vibration data of the washing machine outer cylinder；It is described
Memory module, for storing the mapping table of amplitude and clothes weight；The first magnitude determinations module, for based on described
Vibration data calculates the first amplitude of the washing machine outer cylinder in a first direction；The enquiry module, for searching the vibration
The mapping table of width and clothes weight；The clothes weight determining module, for the lookup based on enquiry module, determine described in
The corresponding clothes weight of first amplitude is the weight of the clothing.
Further, the setting speed is the revolving speed that clothing gravity is greater than centrifugal force.
Further, the setting speed includes positive setting speed and reversed setting speed；Then first amplitude meter
Calculating module includes positive first magnitude determinations unit and reversed first magnitude determinations unit；The clothes weight determining module includes
Weight calculation unit；The positive first magnitude determinations unit, for calculating the washing machine outer cylinder based on the vibration data
The first amplitude of forward direction in a first direction；The reversed first magnitude determinations unit, for being calculated based on the vibration data
Reversed first amplitude of the washing machine outer cylinder in a first direction；The then clothes weight determining module, specifically for being based on
The lookup of enquiry module determines the first amplitude of forward direction and the corresponding clothes weight of reversed first amplitude, the weight calculation
Unit then determines the weight of the clothing based on weight equation W=a*D11+b*D22；Wherein, D 11 is positive first amplitude pair
Clothes weight, the D22 answered is the corresponding clothes weight of reversed first amplitude, and a, b are weight coefficient.
Further, the washing machine further includes the second magnitude determinations module and the second amplitude judgment module；The clothing
Weight determining module includes the first amending unit；The second magnitude determinations module, for calculating institute based on the vibration data
State the second amplitude of washing machine outer cylinder in a second direction；The second amplitude judgment module, for judging second amplitude
Whether the first given threshold is greater than；If so, first amending unit, for being based on looking into the clothes weight determining module
When asking the lookup of module and determining the corresponding clothes weight of first amplitude, the weight of clothing is determined based on the first modification rule；
Wherein, the second direction is vertical with the first direction.
Further, the washing machine further includes third magnitude determinations module and third amplitude judgment module；The clothing
Weight determining module further includes the second amending unit；The third magnitude determinations module, for being calculated based on the vibration data
Third amplitude of the washing machine outer cylinder on third direction；The third amplitude judgment module, for judging the third vibration
Whether width is greater than the second given threshold；If so, the second amendment ternary, for being based in the clothes weight determining module
When the lookup of enquiry module determines first amplitude corresponding clothes weight, the weight of clothing is determined based on the second modification rule
Amount；Wherein, the third direction is the two-dimensional coordinate system plane constituted perpendicular to the first direction and the second direction.
Compared with prior art, the advantages of the application and good effect is: the laundry of washing machine weighing side that the application proposes
In method and washing machine, vibrating sensor is set in washing machine outer cylinder, is turned in washing machine with the setting that clothing gravity is greater than centrifugal force
Under speed when rotation, the vibration data of the washing machine outer cylinder of vibrating sensor detection is obtained, and laundry is calculated according to vibration data
The first amplitude of machine outer cylinder in a first direction, and inquire amplitude and know that the first amplitude is corresponding with the mapping table of clothes weight
Clothes weight, the second amplitude and/or third amplitude all within the set threshold range when, the clothes weight that inquiry is obtained is true
Be set to the weight of clothing, and when the second amplitude and/or this width of third exceed given threshold, then according to the first modification rule and/
Or second modification rule the weight to determine clothing is modified to the obtained clothes weight of inquiry；Among these, amplitude and clothing
The mapping table of weight is to be obtained according to the largely data tested repeatedly by training and pre-stored, has accuracy high
The characteristics of, and the amendment of the first modification rule and/or the second modification rule cooperation is combined, further increase clothes weight judgement
Accuracy solves the technical problem of existing laundry of washing machine weighing inaccuracy.
After the detailed description of the application embodiment is read in conjunction with the figure, other features and advantages of the application will become more
Add clear.
Detailed description of the invention
Fig. 1 is the method flow diagram for the laundry of washing machine weighing method that the application proposes；
Fig. 2 is the weighing system architecture diagram for the washing machine that the application proposes.
Specific embodiment
The specific embodiment of the application is described in more detail with reference to the accompanying drawing.
The laundry of washing machine weighing method that the application proposes, as shown in Figure 1, including the following steps:
Step S11: after washing machine is put into clothing, control washing machine is rotated with setting speed.
The setting speed is the revolving speed that clothing gravity is greater than centrifugal force, by taking roller washing machine as an example, is turned in inner cylinder with setting
During speed rotation, clothing is attached to when turning to top with inner cylinder on inner tube wall, can be fallen by gravity to bottom end, and to inner cylinder
A downward pressure is generated, so that washing machine outer cylinder generates vibration.
Step S12: the vibration data of vibrating sensor detection is obtained.
The whereabouts of clothing makes washing machine outer cylinder generate vibration, and vibrating sensor is mounted on outer cylinder, detects its vibration data.
Step S13: the first amplitude of washing machine outer cylinder in a first direction is calculated based on vibration data.
The Oscillation Amplitude of washing machine outer cylinder can be calculated according to vibration data.By taking inner cylinder for drum washing machine as an example, first
Direction X is the direction for being parallel to clothing gravity, and when falling on inner cylinder bottom end under clothing, washing machine inner/outer tube produces on X in a first direction
Raw Oscillation Amplitude.
Step S14: searching the mapping table of amplitude and clothes weight, determines that the corresponding clothes weight of the first amplitude is clothing
The weight of object.
The mapping table of amplitude and clothes weight is to be obtained simultaneously in advance according to the data largely tested repeatedly by training
Storage, after the first amplitude in a first direction is calculated according to vibration data, inquire the amplitude and clothes weight
Mapping table obtain the corresponding clothes weight of the first amplitude.
In practical application, the weight of the amplitude comprehensive descision clothing generated when can be rotated based on different directions, specifically,
After washing machine is put into clothing, is rotated from forward and reverse both direction with setting speed namely setting speed is set including forward direction
Determine revolving speed and reversed setting speed；When with the rotation of positive setting speed, washing machine outer cylinder is calculated in first party based on vibration data
Upward the first amplitude of forward direction calculates washing machine outer cylinder in a first direction based on vibration data when with the rotation of reversed setting speed
On reversed first amplitude；And the mapping table of amplitude and clothes weight is searched, positive first amplitude and reversed is determined respectively
The corresponding clothes weight of first amplitude finally determines the weight of clothing based on weight equation W=a*D11+b*D22；Wherein, D
11 be the corresponding clothes weight of positive first amplitude, D22 is the corresponding clothes weight of reversed first amplitude, and a, b are weight coefficient.
Since the mapping table of amplitude and clothes weight is to be obtained according to the data largely tested repeatedly by training,
Clothing is contained in the data largely tested repeatedly in identical weight, the outer cylinder amplitude due to caused by the difference of position
Different situations can cause to judge by accident compared in the existing mode calculated according to electric current correlation values due to current value difference, this
In application by way of calculating weight of the amplitude to determine clothing of washing machine outer cylinder in a first direction, by largely testing
Data are more fully trained, and the more acurrate degree of obtained clothes weight is high, solve the skill of existing laundry of washing machine weighing inaccuracy
Art problem.
For the accuracy for further improving clothes weight judgement, in the embodiment of the present application, calculated based on vibration data
The first amplitude of washing machine outer cylinder in a first direction at the same time it can also combine following measures to the obtained clothes weight of inquiry into
Row amendment.
Specifically, calculating the second amplitude of washing machine outer cylinder in a second direction based on vibration data；Second direction Y
It is vertical with first direction X；Judge whether the second amplitude is greater than the first given threshold；If within the first given threshold, basis
The method of step S11 to step S14 determine the weight of clothing, if more than the first given threshold, are then searching amplitude and clothing
When the mapping table of object weight determines the first amplitude corresponding clothes weight, based on the first modification rule to the weight of clothing into
Row amendment, is determined as the weight of final clothing with revised clothes weight；For example, first modification rule are as follows: inquiring
The corresponding clothes weight of the first amplitude on the basis of increase setting weight, such as 250g, 500g etc.；Alternatively, one line of setting
Property or nonlinear amendment relationship, using the clothes weight inquired according to the first amplitude as independent variable, with linearly or nonlinearly
It is the finally determining weight of clothing etc. that function, which exports result,.
It is furthermore preferred that may be used also calculating the second amplitude of washing machine outer cylinder in a second direction simultaneously based on vibration data
To combine following measures to improve the accuracy of clothes weight judgement: calculating washing machine outer cylinder on third direction based on vibration data
Three amplitudes；Judge whether third amplitude is greater than the second given threshold；If so, searching amplitude pass corresponding with clothes weight
When being that table determines the corresponding clothes weight of the first amplitude, the weight of clothing is determined based on the first modification rule and the second modification rule
Amount；Among these, third direction Z is the two-dimensional coordinate system plane constituted perpendicular to first direction X and second direction Y；Second amendment
Rule can refer to the setting of the first modification rule, and the application is to the first modification rule and the not specific limit of the second modification rule
It is fixed；Applicable priority level or the setting of integrated application condition for the first modification rule and the second modification rule etc. are according to reality
Application settings, the application not limit.
Based on laundry of washing machine weighing method set forth above, the application also proposes a kind of washing machine, as shown in Fig. 2, packet
It includes control module 21, the vibrating sensor 22 for being installed on washing machine outer cylinder, the first magnitude determinations module 23, memory module 24, look into
Ask module 25 and clothes weight determining module 26.
Control module 21 is used for after washing machine is put into clothing, and control washing machine is rotated with setting speed；Vibrating sensor
22 for obtaining the vibration data of washing machine outer cylinder；Memory module 24 is used to store the mapping table of amplitude and clothes weight；
First magnitude determinations module 23 is used to calculate the first amplitude of washing machine outer cylinder in a first direction based on vibration data；Inquire mould
Block 25 is used to search the mapping table of amplitude and clothes weight；Clothes weight determining module 26 is used for looking into based on enquiry module
It looks for, determines that the corresponding clothes weight of the first amplitude is the weight of clothing；Wherein, setting speed is that clothing gravity is greater than centrifugal force
Revolving speed.
Specifically, setting speed includes positive setting speed and reversed setting speed；Then the first magnitude determinations module 23 is wrapped
Include positive first magnitude determinations unit 231 and reversed first magnitude determinations unit 232；Clothes weight determining module 26 includes weight
Computing unit 261；Positive first magnitude determinations unit 231 is used to calculate washing machine outer cylinder in a first direction based on vibration data
The first amplitude of forward direction；Reversed first magnitude determinations unit 232 is used to calculate washing machine outer cylinder in first party based on vibration data
Upward reversed first amplitude；Then clothes weight determining module 26 is specifically used for the lookup based on enquiry module 25, determines positive
After first amplitude and the corresponding clothes weight of reversed first amplitude, weight calculation unit 261 is then based on weight equation W=a*
D11+b*D22 determines the weight of clothing；Wherein, D11 is the corresponding clothes weight of positive first amplitude, D22 is reversed first vibration
Corresponding clothes weight, a, b are weight coefficient.
Preferably, which further includes the second magnitude determinations module 27 and the second amplitude judgment module 28；Clothes weight
Determining module 26 includes the first amending unit 262；Second magnitude determinations module 27 is used to calculate outside washing machine based on vibration data
The second amplitude of cylinder in a second direction；Second amplitude judgment module 28 is for judging whether the second amplitude is greater than the first setting threshold
Value；If so, the first amending unit 262 is used to determine first based on the lookup of enquiry module 25 in clothes weight determining module 26
When the corresponding clothes weight of amplitude, the weight of clothing is determined based on the first modification rule；Wherein, second direction and first direction hang down
Directly.
Further, which further includes third magnitude determinations module 29 and third amplitude judgment module 30；Clothing
Weight determining module 26 further includes the second amending unit 263；Third magnitude determinations module 29 is used to wash based on vibration data calculating
Third amplitude of the clothing machine outer cylinder on third direction；Third amplitude judgment module 30 is for judging whether third amplitude is greater than second
Given threshold；If so, the second amendment ternary 263 is for true in lookup of the clothes weight determining module 26 based on enquiry module 25
When the corresponding clothes weight of fixed first amplitude, the weight of clothing is determined based on the second modification rule；Wherein, third direction is vertical
In the two-dimensional coordinate system plane that first direction and second direction are constituted.
The method of specific washing machine realization clothing weighing is in laundry of washing machine weighing method set forth above
It is described in detail, it will not go into details herein.
In the laundry of washing machine weighing method and washing machine that above-mentioned the application proposes, passed through according to the data largely tested repeatedly
It crosses training and obtains the amplitude of washing machine outer cylinder and the corresponding relationship of clothes weight, vibrating sensor is set in washing machine outer cylinder,
Washing machine is greater than with clothing gravity when rotating under the setting speed of centrifugal force, obtains the washing machine outer cylinder of vibrating sensor detection
Vibration data, and washing machine outer cylinder is calculated according to vibration data, the amplitude that vibration generates occurs, and inquire amplitude and clothing weight
The mapping table of amount solves existing laundry of washing machine weighing in conjunction with the weight of modification rule corrected accurately to determine clothing
The technical problem of inaccuracy.
It should be noted that the above description is not a limitation of the present invention, the present invention is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made within the essential scope of the present invention, are also answered
It belongs to the scope of protection of the present invention.
Claims (10)
1. laundry of washing machine weighing method characterized by comprising
After washing machine is put into clothing, control washing machine is rotated with setting speed；
Obtain the vibration data of vibrating sensor detection；
The first amplitude of the washing machine outer cylinder in a first direction is calculated based on the vibration data；
The mapping table for searching amplitude and clothes weight determines that the corresponding clothes weight of first amplitude is the clothing
Weight.
2. laundry of washing machine weighing method according to claim 1, which is characterized in that the setting speed is clothing gravity
Greater than the revolving speed of centrifugal force.
3. laundry of washing machine weighing method according to claim 1, which is characterized in that the setting speed is set including forward direction
Determine revolving speed and reversed setting speed；The first vibration of the washing machine outer cylinder in a first direction is then calculated based on the vibration data
Width, specifically:
The first amplitude of forward direction and reversed first of the washing machine outer cylinder in a first direction is calculated based on the vibration data to shake
Width；
Then determine that the corresponding clothes weight of first amplitude is the weight of the clothing, specifically:
The mapping table of the amplitude and clothes weight is searched, determines that the first amplitude of forward direction is corresponding and reversed first amplitude is distinguished
Corresponding clothes weight；The weight of the clothing is determined based on weight equation W=a*D11+b*D22；Wherein, D11 is forward direction first
The corresponding clothes weight of amplitude, D22 are the corresponding clothes weight of reversed first amplitude, and a, b are weight coefficient.
4. laundry of washing machine weighing method according to claim 1, which is characterized in that calculate institute based on the vibration data
State the first amplitude of washing machine outer cylinder in a first direction simultaneously, the method also includes:
The second amplitude of the washing machine outer cylinder in a second direction is calculated based on the vibration data；
Judge whether second amplitude is greater than the first given threshold；If so,
Then when searching amplitude and the mapping table of clothes weight and determining the corresponding clothes weight of first amplitude, based on the
One modification rule determines the weight of clothing；
Wherein, the second direction is vertical with the first direction.
5. laundry of washing machine weighing method according to claim 4, which is characterized in that calculate institute based on the vibration data
State the second amplitude of washing machine outer cylinder in a second direction simultaneously, the method also includes:
Three amplitudes of the washing machine outer cylinder on third direction are calculated based on the vibration data；
Judge whether the third amplitude is greater than the second given threshold；If so,
Then when searching amplitude and the mapping table of clothes weight and determining the corresponding clothes weight of first amplitude, it is based on institute
It states the first modification rule and the second modification rule determines the weight of clothing；
Wherein, the third direction is the two-dimensional coordinate system plane constituted perpendicular to the first direction and the second direction.
6. washing machine, which is characterized in that including control module, the vibrating sensor for being installed on washing machine outer cylinder, the first amplitude meter
Calculate module, memory module, enquiry module and clothes weight determining module；
The control module, for after washing machine is put into clothing, control washing machine to be rotated with setting speed；
The vibrating sensor, for obtaining the vibration data of the washing machine outer cylinder；
The memory module, for storing the mapping table of amplitude and clothes weight；
The first magnitude determinations module, for calculating the washing machine outer cylinder in a first direction based on the vibration data
First amplitude；
The enquiry module, for searching the mapping table of the amplitude and clothes weight；
The clothes weight determining module determines the corresponding clothing weight of first amplitude for the lookup based on enquiry module
Amount is the weight of the clothing.
7. washing machine according to claim 6, which is characterized in that the setting speed is that clothing gravity is greater than centrifugal force
Revolving speed.
8. washing machine according to claim 6, which is characterized in that the setting speed is including positive setting speed and reversely
Setting speed；
Then the first magnitude determinations module includes positive first magnitude determinations unit and reversed first magnitude determinations unit；It is described
Clothes weight determining module includes weight calculation unit；
The positive first magnitude determinations unit, for calculating the washing machine outer cylinder in a first direction based on the vibration data
On the first amplitude of forward direction；The reversed first magnitude determinations unit, for calculating the washing machine based on the vibration data
Reversed first amplitude of outer cylinder in a first direction；
The then clothes weight determining module determines the first amplitude of forward direction and reversed specifically for the lookup based on enquiry module
The corresponding clothes weight of first amplitude, the weight calculation unit then determine institute based on weight equation W=a*D11+b*D22
State the weight of clothing；Wherein, D 11 is the corresponding clothes weight of positive first amplitude, D22 is the corresponding clothing of reversed first amplitude
Object weight, a, b are weight coefficient.
9. washing machine according to claim 6, which is characterized in that the washing machine further include the second magnitude determinations module and
Second amplitude judgment module；The clothes weight determining module includes the first amending unit；
The second magnitude determinations module, for calculating the washing machine outer cylinder in a second direction based on the vibration data
Second amplitude；
The second amplitude judgment module, for judging whether second amplitude is greater than the first given threshold；If so, described
First amending unit, for determining that first amplitude is corresponding based on the lookup of enquiry module in the clothes weight determining module
Clothes weight when, the weight of clothing is determined based on the first modification rule；
Wherein, the second direction is vertical with the first direction.
10. washing machine according to claim 7, which is characterized in that the washing machine further includes third magnitude determinations module
With third amplitude judgment module；The clothes weight determining module further includes the second amending unit；
The third magnitude determinations module, for calculating the washing machine outer cylinder on third direction based on the vibration data
Third amplitude；
The third amplitude judgment module, for judging whether the third amplitude is greater than the second given threshold；If so, described
Second amendment ternary, for determining that first amplitude is corresponding based on the lookup of enquiry module in the clothes weight determining module
Clothes weight when, the weight of clothing is determined based on the second modification rule；
Wherein, the third direction is the two-dimensional coordinate system plane constituted perpendicular to the first direction and the second direction.
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| CN112899985A (en) * | 2019-11-19 | 2021-06-04 | 海信（山东）冰箱有限公司 | Washing machine |
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| CN109778486B (en) | 2022-07-08 |
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