CN111945377B - Weighing method of washing machine, washing machine and computer readable storage medium - Google Patents
Weighing method of washing machine, washing machine and computer readable storage medium Download PDFInfo
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- CN111945377B CN111945377B CN202010828985.2A CN202010828985A CN111945377B CN 111945377 B CN111945377 B CN 111945377B CN 202010828985 A CN202010828985 A CN 202010828985A CN 111945377 B CN111945377 B CN 111945377B
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- 238000005406 washing Methods 0.000 title claims abstract description 272
- 238000005303 weighing Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000003860 storage Methods 0.000 title claims abstract description 10
- 230000000630 rising effect Effects 0.000 claims abstract description 55
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000012937 correction Methods 0.000 claims description 50
- 238000004590 computer program Methods 0.000 claims description 9
- 230000001174 ascending effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 32
- 230000000694 effects Effects 0.000 abstract description 19
- 230000008447 perception Effects 0.000 abstract description 14
- 239000003599 detergent Substances 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000032683 aging Effects 0.000 description 13
- 238000012360 testing method Methods 0.000 description 4
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/38—Time, e.g. duration
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/44—Current or voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention provides a washing machine weighing method, a washing machine and a computer readable storage medium, wherein the washing machine weighing method comprises the following steps: controlling the motor to operate at a preset frequency, and acquiring the frequency rising time required by the motor to operate at the preset frequency and the current of the motor to operate at the preset frequency; acquiring a first load weight according to the frequency rising time and a preset frequency rising time-weight relation; acquiring a second load weight according to the current and a preset current-weight relation; an average value of the first load weight and the second load weight is obtained and taken as a weight of laundry in the current washing machine. The dual judgement of contrast is weighed with predetermined weight relation respectively through the rise frequency time and the electric current that acquire the motor, and is more accurate to the perception of clothing weight, and whole weighing process time spent is shorter for washing machine can select the best washing water level, puts in proper amount detergent, reaches the best washing effect, promotes the satisfaction of user to washing machine washing effect, water consumption and power consumption.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a washing machine weighing method, a washing machine and a computer readable storage medium.
Background
Along with the improvement of living standard of people, the performance requirement of the washing machine is higher and higher, and energy conservation, environmental protection and intellectualization become several important factors considered when people buy the washing machine. Because the water consumption and the washing time of the washing machine are determined by the weight of the clothes in the washing machine, and the water consumption and the washing time of the washing machine directly influence the washing effect, the water consumption and the power consumption of the washing machine, accurately acquiring the weight of the clothes in the washing machine becomes a key point for realizing energy conservation, environmental protection and intellectualization of the washing machine.
The existing washing machine basically obtains the weight of the clothes in the washing machine through a single technical index, such as the rotating speed of the motor, or the current of the motor, or the voltage of the motor. The existing washing machine calculates the weight of clothes in the washing machine in order to obtain a plurality of single technical index values in the weighing process, and a motor needs to run repeatedly for a plurality of times, so that the weighing time is long, the weighing precision is not high, the whole weighing effect is not ideal, and the user experience is poor. In addition, the existing washing machine does not consider interference factors such as aging of motor parts in the weighing process, so that the weighing precision and accuracy are not high.
Disclosure of Invention
The invention aims to provide a weighing method of a washing machine, which can quickly and accurately weigh.
A second object of the present invention is to provide a washing machine that weighs quickly and accurately.
A third object of the present invention is to provide a computer readable storage medium for implementing the above-mentioned weighing method of a washing machine.
In order to achieve the first object of the present invention, the present invention provides a weighing method of a washing machine, comprising: controlling the motor to operate at a preset frequency, and acquiring the frequency rising time required by the motor to operate at the preset frequency and the current of the motor to operate at the preset frequency; acquiring a first load weight according to the frequency rising time and a preset frequency rising time-weight relation; acquiring a second load weight according to the current and a preset current-weight relation; an average value of the first load weight and the second load weight is obtained and taken as a weight of laundry in the current washing machine.
According to the scheme, the washing machine weighing method obtains the first load weight and the second load weight by respectively comparing the frequency-rising time and the current of the motor with the preset weight relation, and then obtains the more accurate clothes weight by averaging the first load weight and the second load weight. The double judgment weighing is carried out through the current and the frequency rising time, and the sensing of the weight of the clothes is more accurate. And the whole weighing process is short in time, only 15 seconds are needed, and the damage to clothes caused by waterless rotation can be reduced to the maximum extent. The quick weighing device has the advantages that the weighing sensing accuracy can be improved while the weighing is carried out quickly, so that the washing machine can select the optimal washing water level and put in a proper amount of detergent, the washing effect of the washing machine is optimal, the satisfaction degree of a user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
Preferably, the weighing method of the washing machine further comprises the following steps: and judging whether the washing times of the current washing machine are greater than the preset times, if so, executing self-correction operation.
In a further aspect, the self-leveling operation comprises: and obtaining the correction weight by subtracting the first preset correction value from the average value, and taking the correction weight as the weight of the clothes in the current washing machine.
According to the scheme, with the use of the washing machine, parts such as the motor and the like age, the acquired frequency rising time and the acquired current become larger, the weighing sensing accuracy is affected, and the weighing result is deviated from the actual clothes weight. Therefore, after the washing times of the washing machine are larger than the preset times, the average value of the first load weight and the second load weight is subjected to self-correction operation, namely the average value is subjected to self-subtraction of the first preset correction value to obtain the correction weight, the correction weight is used as the weight of clothes in the washing machine, the phenomenon that the aging of parts such as a motor influences the accuracy of weighing perception is avoided, the accuracy of weighing perception of the washing machine is ensured, the washing machine can select a proper water level, the satisfaction degree of a user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
In a further aspect, the self-leveling operation comprises: obtaining corrected frequency-rising time-weight relation by subtracting a second preset correction value from each frequency-rising time of the preset frequency-rising time-weight relation, obtaining corrected current-weight relation by subtracting a third preset correction value from each current value of the preset current-weight relation, and resetting the washing times of the current washing machine; acquiring a third load weight according to the frequency rising time and the corrected frequency rising time-weight relation; obtaining a fourth load weight according to the current and the corrected current-weight relationship; and acquiring a corrected average value of the third load weight and the fourth load weight, and taking the corrected average value as the weight of the clothes in the current washing machine.
According to the scheme, with the use of the washing machine, parts such as the motor and the like age, the acquired frequency rising time and the acquired current become larger, the weighing sensing accuracy is affected, and the weighing result is deviated from the actual clothes weight. Therefore, after the washing times of the washing machine are more than the preset times, the self-correction operation is carried out on the preset frequency-rising time-weight relation and the preset current-weight relation, and the calibration and optimization are carried out, namely, each frequency-rising time of the preset frequency-rising time-weight relation is subtracted from the second preset correction value to obtain the corrected frequency-rising time-weight relation, and each current value of the preset current-weight relation is subtracted from the third preset correction value to obtain the corrected current-weight relation, namely, the current corresponding to the preset weight and the frequency-rising time are reduced and corrected, so that the corrected frequency-rising time-weight relation and the corrected current-weight relation keep accuracy. After the current and the frequency-rising time corresponding to the preset weight are self-corrected, the washing times i of the washing machine are reset at the same time, and the washing times i are repeatedly self-corrected after reaching the washing times next time, so that the problem that the aging of parts such as a motor influences the weighing perception accuracy of the washing machine is avoided, the weighing perception accuracy of the washing machine is guaranteed, the washing machine can select a proper water level, the satisfaction degree of a user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
Further, the obtaining of the preset frequency-increasing time-weight relationship comprises: placing clothes with known weight in a sample washing machine, wherein the sample washing machine is the same as the current washing machine; controlling the frequency of the motor running to the preset frequency in the first direction to reach the preset frequency, and detecting the frequency rising time of the motor in the process of running to the preset frequency in the first direction each time so as to obtain first frequency rising time; controlling the frequency of the motor running to the preset frequency in the second direction to reach the preset frequency, and detecting the frequency rising time of the motor in the process of running to the preset frequency in the second direction each time so as to obtain second frequency rising time; and calculating root mean square values of the plurality of first frequency rising times and the plurality of second frequency rising times as final frequency rising times.
It is a further option to control the motor to run alternately in the first direction and in the second direction.
Therefore, clothes with known weight are put into the washing machine, the step of obtaining the preset frequency-rising time-weight relation is repeatedly circulated, enough data are obtained through multiple tests, then the data are fitted to obtain a relation curve corresponding to the frequency-rising time and the weight, namely the preset frequency-rising time-weight relation, so that the weighing perception accuracy of the washing machine used by a user is ensured, the washing machine can select a proper water level, the satisfaction degree of the user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
Further, the obtaining of the preset current-weight relationship comprises: placing clothes with known weight in a sample washing machine, wherein the sample washing machine is the same as the current washing machine; controlling the motor to run to a preset frequency in a first direction for a preset number of times, and detecting the current of the motor to obtain a first working current when the motor runs to the preset frequency in the first direction each time; controlling the frequency of the motor running to the preset frequency in the second direction to reach the preset frequency, and detecting the current of the motor when the motor runs to the preset frequency in the second direction each time so as to obtain a second working current; and calculating the root mean square value of the plurality of first working currents and the plurality of second working currents as final working currents.
It is a further option to control the motor to run alternately in the first direction and in the second direction.
Therefore, clothes with known weight are put into the washing machine, the step of obtaining the preset current-weight relation is repeatedly circulated, enough data are obtained through multiple tests, and then the data are fitted to obtain a relation curve corresponding to the current and the weight, namely the preset current-weight relation, so that the weighing sensing accuracy of the washing machine used by a user is ensured, the washing machine can select a proper water level, the satisfaction degree of the user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
In order to achieve the second object of the present invention, the present invention provides a washing machine comprising: a motor; the driving module is connected with the motor and is used for driving the motor to run; the detection module is connected with the motor and is used for detecting the frequency rising time required by the motor running to the preset frequency and the current of the motor running to the preset frequency; the control module is respectively connected with the driving module and the detection module, and is used for controlling the motor to run at a preset frequency, acquiring the frequency rising time required by the motor running to the preset frequency and the current of the motor running to the preset frequency, acquiring a first load weight according to the frequency rising time and the preset frequency rising time-weight relation, acquiring a second load weight according to the current and the preset current-weight relation, acquiring the average value of the first load weight and the second load weight, and taking the average value as the weight of clothes in the washing machine.
The control module is further used for judging whether the washing times of the current washing machine are larger than the preset times, and if so, self-correction operation is executed.
In a further aspect, the self-leveling operation comprises: the average value is subtracted from a first preset correction value to obtain a corrected weight, and the corrected weight is taken as the weight of the laundry in the washing machine.
In a further aspect, the self-leveling operation comprises: obtaining corrected frequency-rising time-weight relation by subtracting a second preset correction value from each frequency-rising time of the preset frequency-rising time-weight relation, obtaining corrected current-weight relation by subtracting a third preset correction value from each current value of the preset current-weight relation, and resetting the washing times of the washing machine; acquiring a third load weight according to the frequency rising time and the corrected frequency rising time-weight relation; obtaining a fourth load weight according to the current and the corrected current-weight relationship; a corrected average of the third and fourth load weights is obtained and taken as the weight of the laundry in the washing machine.
In order to achieve the third object of the present invention, the present invention provides a computer readable storage medium having stored thereon a computer program, which when executed by a processor, performs the steps of the above-described weighing method of a washing machine.
Drawings
Fig. 1 is a flow chart of an embodiment of the weighing method of the washing machine of the invention.
FIG. 2 is a flow chart of a first embodiment of the self-leveling operation in an embodiment of the weighing method of the washing machine of the present invention.
FIG. 3 is a flow chart of a second embodiment of the self-leveling operation in an embodiment of the weighing method of the washing machine of the present invention.
Fig. 4 is a flowchart for obtaining a preset frequency-increasing time-weight relationship in an embodiment of the weighing method of the washing machine of the present invention.
Fig. 5 is a flow chart of obtaining a preset current-weight relationship in an embodiment of the weighing method of the washing machine of the present invention.
Fig. 6 is a block diagram of an embodiment of the washing machine of the present invention.
The invention is further described with reference to the following figures and examples.
Detailed Description
The weighing method of the washing machine is applied to the washing machine, and the washing machine can be one of a pulsator washing machine, a drum washing machine, a stirring washing machine or a jet washing machine.
Embodiment of weighing method of washing machine:
the embodiment is applied to a washing machine, and referring to fig. 1, fig. 1 is a flow chart of a weighing method of the washing machine. When a user puts the clothes into the washing machine and then starts the washing function, the washing machine starts weighing, firstly, step S1 is executed to control the motor to start and enable the running frequency of the motor to reach the preset frequency, and then step S2 is executed to obtain the frequency-up time required by the running frequency of the motor to reach the preset frequency and the current of the motor when the motor runs to the preset frequency, namely, the time required by the motor to reach the preset frequency from the static running is the frequency-up time and the current of the motor when the motor runs to reach the preset frequency. Then, step S3 is executed to determine whether the number of washing times of the current washing machine is greater than the preset number of washing times, if so, it is determined that the components such as the motor have aging phenomenon, and step S5 is executed to perform self-correcting weighing operation. If not, step S4 is executed to obtain a first load weight according to the frequency-increasing time and a preset frequency-increasing time-weight relationship, and obtain a second load weight according to the current and a preset current-weight relationship, that is, the obtained frequency-increasing time required for the motor to operate to the preset frequency is compared with the preset frequency-increasing time-weight relationship to obtain a corresponding first load weight, and the obtained current when the motor operates to the preset frequency is compared with the preset current-weight relationship to obtain a second load weight. Thereafter, step S6 is performed to obtain an average value of the first and second load weights, and to take the average value as the weight of the laundry in the current washing machine. Then, step S7 is executed, and the washing number i of the washing machine is increased by one (i ═ i + 1). And finally, selecting proper water inflow by the washing machine according to the obtained weight of the clothes in the current washing machine for washing.
According to the weighing method of the washing machine, the first load weight and the second load weight are obtained by obtaining the frequency rising time and the current of the motor and comparing the frequency rising time and the current with the preset weight relation respectively, and then the average value of the first load weight and the second load weight is obtained to obtain more accurate clothes weight. The double judgment weighing is carried out through the current and the frequency rising time, and the sensing of the weight of the clothes is more accurate. And whole weighing process time spent is shorter, and this embodiment washing machine weighing method only needs 15 seconds in whole weighing process, can furthest reduce because the damage that anhydrous rotation caused the clothing. The quick weighing device has the advantages that the weighing sensing accuracy can be improved while the weighing is carried out quickly, so that the washing machine can select the optimal washing water level and put in a proper amount of detergent, the washing effect of the washing machine is optimal, the satisfaction degree of a user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
Referring to fig. 2, fig. 2 is a flow chart of a first embodiment of a self-leveling operation in a weighing method of a washing machine. And (4) when the step (S3) is executed, judging whether the washing frequency i of the current washing machine is greater than the preset frequency, if so, determining that the parts such as the motor and the like have the aging phenomenon, and executing the step (S5) to perform the self-correcting weighing operation. The preset number of times of washing can be set differently according to the structural performance of different washing machines, the preset number of times of washing in the embodiment is 500, namely when the washing number i of the washing machine is greater than 500, it is determined that the parts such as the motor have aging phenomena and self-correction weighing operation is required. Subsequently, step S511 is executed to obtain a first load weight according to the frequency-increasing time and the preset frequency-increasing time-weight relationship, obtain a second load weight according to the current and the preset current-weight relationship, that is, the obtained frequency-increasing time required for the motor to operate to the preset frequency is compared with the preset frequency-increasing time-weight relationship to obtain a corresponding first load weight, and the obtained current when the motor operates to the preset frequency is compared with the preset current-weight relationship to obtain a second load weight. Next, step S512 is performed to obtain an average value of the first and second loading weights, and then step S513 is performed to obtain a correction weight by subtracting the first preset correction value from the average value, and to take the correction weight as the weight of the laundry in the washing machine. Then, step S7 is executed, and the washing number i of the washing machine is increased by one (i ═ i + 1). And finally, selecting proper water inflow by the washing machine according to the obtained weight of the clothes in the current washing machine for washing. The first preset correction value of the embodiment can be set differently according to the structural performance of different washing machines, and the first preset correction value is a preset fixed value because the preset frequency-rising time-weight relation and the preset current-weight relation are curves close to linear correlation.
With the use of the washing machine, parts such as the motor and the like can age along with the washing machine, the acquired frequency-increasing time and current can be increased along with the aging, the accuracy of weighing sensing is affected, and the weighing result is deviated from the actual clothes weight. Therefore, after the washing times of the washing machine are larger than the preset times, the average value of the first load weight and the second load weight is subjected to self-correction operation, namely the average value is subjected to self-subtraction of the first preset correction value to obtain the correction weight, the correction weight is used as the weight of clothes in the washing machine, the phenomenon that the aging of parts such as a motor influences the accuracy of weighing perception is avoided, the accuracy of weighing perception of the washing machine is ensured, the washing machine can select a proper water level, the satisfaction degree of a user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
Referring to fig. 3, fig. 3 is a flow chart of a second embodiment of a self-leveling operation in a weighing method of a washing machine. And (4) when the step (S3) is executed, judging whether the washing frequency i of the current washing machine is greater than the preset frequency, if so, determining that the parts such as the motor and the like have the aging phenomenon, and executing the step (S5) to perform the self-correcting weighing operation. The preset number of times of washing can be set differently according to the structural performance of different washing machines, the preset number of times of washing in the embodiment is 500, namely when the washing number i of the washing machine is greater than 500, it is determined that the parts such as the motor have aging phenomena and self-correction weighing operation is required. Subsequently, step S521 is executed to obtain a corrected frequency-rising time-weight relationship by subtracting the second preset correction value from each frequency-rising time of the preset frequency-rising time-weight relationship, obtain a corrected current-weight relationship by subtracting the third preset correction value from each current value of the preset current-weight relationship, and zero-clearing the washing times i of the washing machine. Then, step S522 is executed to obtain a third load weight according to the frequency-increasing time and the corrected frequency-increasing time-weight relationship, and obtain a fourth load weight according to the current and the corrected current-weight relationship, and then step S523 is executed to obtain a corrected average value of the third load weight and the fourth load weight, and the corrected average value is used as the laundry weight in the washing machine, where the corrected average value is the average value of the third load weight and the fourth load weight. Then, step S7 is executed, and the washing number i of the washing machine is increased by one (i ═ i + 1). And finally, selecting proper water inflow by the washing machine according to the obtained weight of the clothes in the current washing machine for washing. If the number of washing times i of the washing machine is reset after the number of washing times i of the washing machine is greater than 500 for the first time, then whether the number of washing times i of the current washing machine is greater than a preset number of washing times is judged, if not, the step S522 is directly executed, the third load weight is obtained according to the frequency-increasing time and the corrected frequency-increasing time-weight relation, the fourth load weight is obtained according to the current and the corrected current-weight relation, then the step S523 is executed, the corrected average value of the third load weight and the fourth load weight is obtained, and the corrected average value is used as the weight of the clothes in the washing machine. If yes, step S521 is executed, each of the rising frequency times of the preset rising frequency time-weight relationship is subtracted from the second preset correction value to obtain a corrected rising frequency time-weight relationship, each of the current values of the preset current-weight relationship is subtracted from the third preset correction value to obtain a corrected current-weight relationship, and the washing times i of the washing machine are cleared, so that the preset rising frequency time-weight relationship and the preset current-weight relationship perform the second self-correction operation. And repeating the steps to perform self-correction operation on the preset frequency-rising time-weight relation and the preset current-weight relation. The second preset correction value and the third preset correction value can be set differently according to the structural performance of different washing machines, and both the preset ascending frequency time-weight relation and the preset current-weight relation are close to linearly related curves, so that the second preset correction value and the third preset correction value are preset fixed values.
With the use of the washing machine, parts such as the motor and the like can age along with the washing machine, the acquired frequency-increasing time and current can be increased along with the aging, the accuracy of weighing sensing is affected, and the weighing result is deviated from the actual clothes weight. Therefore, after the washing times of the washing machine are more than the preset times, the self-correction operation is carried out on the preset frequency-rising time-weight relation and the preset current-weight relation, and the calibration and optimization are carried out, namely, each frequency-rising time of the preset frequency-rising time-weight relation is subtracted from the second preset correction value to obtain the corrected frequency-rising time-weight relation, and each current value of the preset current-weight relation is subtracted from the third preset correction value to obtain the corrected current-weight relation, namely, the current corresponding to the preset weight and the frequency-rising time are reduced and corrected, so that the corrected frequency-rising time-weight relation and the corrected current-weight relation keep accuracy. After current and the rising frequency time that correspond to preset weight carry out the self-correction, carry out the zero clearing to washing machine's washing number of times i simultaneously, wait to arrive 500 times again and repeatedly carry out the self-correction processing, thereby avoid the ageing influence washing machine accuracy of perception of weighing of spare parts such as motor, guarantee the accuracy of washing machine perception of weighing, make washing machine can select suitable water level, promote the user to washing effect, the satisfaction of water consumption and power consumption of washing machine, bring intelligent service experience for the user simultaneously.
Referring to fig. 4, fig. 4 is a flowchart for obtaining a preset frequency-increasing time-weight relationship in a weighing method of a washing machine. In order to obtain a preset ramp-up time-weight relationship curve, step S81 is performed first, in which laundry of a known weight is placed in a sample washing machine, and the sample washing machine is the same as a current washing machine used by a user, step S82 is performed, the number of times that the motor is operated in the first direction to a preset frequency reaches a preset number of times, and the ramp-up time of the motor is detected during each operation in the first direction to the preset frequency to obtain a first ramp-up time, step S83 is performed, the number of times that the motor is operated in the second direction to the preset frequency reaches a preset number of times, and the ramp-up time of the motor is detected during each operation in the second direction to the preset frequency to obtain a second ramp-up time, and step S84 is performed, and the root mean square values of the plurality of first ramp-up times and the plurality of second ramp-up times are calculated as a final ramp-up time. The preset times can be set differently according to the structural performance of different washing machines, in this embodiment, the preset times is fifteen times, the number of times that the motor is operated in the first direction to the preset frequency reaches fifteen times, the frequency rising time of the motor is detected in the process of each operation from the first direction to the preset frequency to obtain the first frequency rising time, the number of times that the motor is operated in the second direction to the preset frequency reaches fifteen times, the frequency rising time of the motor is detected in the process of each operation from the second direction to the preset frequency to obtain the second frequency rising time, and then root mean square values of the fifteen first frequency rising times and the fifteen second frequency rising times are calculated as the final frequency rising time corresponding to the clothes with the known weight. Furthermore, the motor may be controlled to alternately operate fifteen times in the first direction and the second direction, respectively, to obtain fifteen first and fifteen second ramp-up times.
The method comprises the steps of putting clothes with known weight of 0-9 KG into a washing machine, repeatedly circulating the step of obtaining the preset frequency rising time-weight relation, obtaining enough data through multiple tests, fitting the data to obtain a relation curve corresponding to the frequency rising time and the weight, namely the preset frequency rising time-weight relation, and accordingly ensuring accurate weighing perception of the washing machine used by a user, enabling the washing machine to select a proper water level, improving the satisfaction degree of the user on the washing effect, the water consumption and the power consumption of the washing machine, and bringing intelligent service experience to the user.
Referring to fig. 5, fig. 5 is a flowchart for obtaining a preset current-weight relationship in a weighing method of a washing machine. In order to obtain a preset current-weight relationship curve, step S91 is performed first, in which laundry of a known weight is placed in a sample washing machine, and the sample washing machine is the same as a current washing machine used by a user, step S92 is performed, the number of times that the motor is operated in the first direction to a preset frequency reaches a preset number of times, and the current of the motor is detected to obtain a first operating current each time the motor is operated in the first direction to the preset frequency, step S93 is performed, the number of times that the motor is operated in the second direction to the preset frequency reaches a preset number of times, and the current of the motor is detected to obtain a second operating current each time the motor is operated in the second direction to the preset frequency, and step S94 is performed, and the root mean square values of the plurality of first operating currents and the plurality of second operating currents are calculated as a final operating current. The preset times can be set differently according to the structural performance of different washing machines, in this embodiment, the preset times is fifteen times, the number of times that the motor operates in the first direction to the preset frequency reaches fifteen times, the current of the motor is detected to obtain the first working current when the motor operates in the first direction to the preset frequency each time, the number of times that the motor operates in the second direction to the preset frequency reaches fifteen times, the current of the motor is detected to obtain the second working current when the motor operates in the second direction to the preset frequency each time, and then root mean square values of the fifteen first working currents and the fifteen second working currents are calculated as the final working current corresponding to clothes with known weight. Furthermore, the motor may be controlled to alternately operate fifteen times in the first direction and the second direction, respectively, to obtain fifteen first operating currents and fifteen second operating currents.
The method comprises the steps of putting clothes with known weight of 0-9 KG into a washing machine, repeatedly circulating the step of obtaining the preset current-weight relation, obtaining enough data through multiple tests, fitting the data to obtain a relation curve corresponding to the current and the weight, namely the preset current-weight relation, so that the weighing perception of the washing machine used by a user is ensured to be accurate, the washing machine can select a proper water level, the satisfaction degree of the user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
Washing machine embodiment:
referring to fig. 6, fig. 6 is a block diagram of the washing machine. The washing machine comprises a motor 10, a driving module 20, a detection module 30 and a control module 40, wherein the driving module 20 is connected with the motor 10 and used for driving the motor 10 to operate, the detection module 30 is connected with the motor 10, and the detection module 30 is used for detecting the frequency rising time required by the motor 10 to operate to a preset frequency and the current when the motor 10 operates to the preset frequency. The control module 40 is respectively connected to the driving module 20 and the detecting module 30, the control module 40 is configured to control the motor 10 to operate at a preset frequency, obtain a frequency-rising time required for the motor 10 to operate at the preset frequency and a current when the motor 10 operates at the preset frequency, obtain a first load weight according to the frequency-rising time and a preset frequency-rising time-weight relationship, obtain a second load weight according to the current and the preset current-weight relationship, obtain an average value of the first load weight and the second load weight, and use the average value as a laundry weight in the washing machine.
The control module 40 of the washing machine obtains a first load weight and a second load weight by obtaining the frequency-increasing time and current of the motor and comparing with a preset weight relation respectively, and then calculates an average value of the first load weight and the second load weight to obtain a more accurate clothes weight. The current and the frequency rise time of the motor are used for carrying out double judgment weighing, the time of the whole weighing process is short, the whole weighing process of the washing machine only needs 15 seconds, and the damage of the washing machine to clothes due to waterless rotation can be reduced to the maximum extent. The quick weighing device has the advantages that the weighing sensing accuracy can be improved while the weighing is carried out quickly, so that the washing machine can select the optimal washing water level and put in a proper amount of detergent, the washing effect of the washing machine is optimal, the satisfaction degree of a user on the washing effect, the water consumption and the power consumption of the washing machine is improved, and meanwhile, intelligent service experience is brought to the user.
With the use of the washing machine, the parts such as the motor 10 will age, and the obtained frequency-increasing time and current will increase, which affects the accuracy of the weighing result, resulting in deviation between the weighing result and the actual clothes weight. Therefore, in the process of weighing the clothes weight, the control module 40 further determines whether the washing frequency i of the current washing machine is greater than the preset frequency, and if so, determines that the parts such as the motor 10 are aged and the self-correcting weighing operation is required. Wherein the self-leveling weighing operation may be referred to in the first embodiment of the self-leveling operation of fig. 2 and the second embodiment of the self-leveling operation of fig. 3. Through correcting the operation of weighing to the washing machine in control module 40's the condition of predetermineeing calibrates and optimizes to avoid ageing influence washing machine weighing perception's accuracy of spare parts such as motor 10, guarantee the accuracy of perception of weighing, make washing machine can select suitable water level, promote the user to washing effect, the water consumption and the satisfaction of power consumption of washing machine, bring intelligent service experience for the user simultaneously.
Computer-readable storage medium embodiments:
the computer programs stored in the driving module 20, the sensing module 30 and the control module 40 of the washing machine may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the above-mentioned weighing method when the computer program is executed by a processor.
Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
The above embodiments are only preferred examples of the present invention, and should not be construed as limiting the scope of the invention, so that the equivalent changes or modifications made by the structure, characteristics and principle of the claimed invention should be included in the scope of the invention.
Claims (13)
1. The weighing method of the washing machine is characterized by comprising the following steps:
controlling the motor to operate at a preset frequency, and acquiring the frequency rising time required by the motor to operate at the preset frequency and the current of the motor to operate at the preset frequency;
acquiring a first load weight according to the frequency rising time and a preset frequency rising time-weight relation;
acquiring a second load weight according to the current and a preset current-weight relation;
and acquiring an average value of the first load weight and the second load weight, and taking the average value as the weight of the clothes in the current washing machine.
2. The weighing method of a washing machine according to claim 1, wherein:
the weighing method of the washing machine further comprises the following steps: and judging whether the washing times of the current washing machine are greater than the preset times, if so, executing self-correction operation.
3. The weighing method of a washing machine according to claim 2, wherein:
the self-correcting operation comprises: and obtaining the corrected weight by subtracting the average value from a first preset correction value, and taking the corrected weight as the weight of the clothes in the current washing machine.
4. The weighing method of a washing machine according to claim 2, wherein:
the self-correcting operation comprises:
obtaining corrected ascending frequency time-weight relation by subtracting a second preset correction value from each ascending frequency time of the preset ascending frequency time-weight relation, obtaining corrected current-weight relation by subtracting a third preset correction value from each current value of the preset current-weight relation, and resetting the washing times of the current washing machine;
acquiring a third load weight according to the frequency rising time and the corrected frequency rising time-weight relation;
obtaining a fourth load weight according to the current and the corrected current-weight relationship;
and acquiring a corrected average value of the third load weight and the fourth load weight, and taking the corrected average value as the weight of clothes in the current washing machine.
5. The weighing method of a washing machine according to any one of claims 1 to 4, wherein:
obtaining the preset frequency-increasing time-weight relationship comprises:
placing clothes with known weight in a sample washing machine, wherein the sample washing machine and the current washing machine are the same washing machine;
controlling the frequency of the motor running to the preset frequency in the first direction to reach the preset frequency, and detecting the frequency rising time of the motor in the process of running to the preset frequency in the first direction each time so as to obtain first frequency rising time;
controlling the frequency of the motor running to the preset frequency in the second direction to reach the preset frequency, and detecting the frequency rising time of the motor in the process of running to the preset frequency in the second direction each time so as to obtain second frequency rising time;
and calculating root mean square values of a plurality of first frequency raising times and a plurality of second frequency raising times as final frequency raising times.
6. The weighing method of a washing machine according to claim 5, wherein:
the motor is controlled to alternately operate in a first direction and a second direction.
7. The weighing method of a washing machine according to any one of claims 1 to 4, wherein:
obtaining the preset current-weight relationship comprises:
placing clothes with known weight in a sample washing machine, wherein the sample washing machine and the current washing machine are the same washing machine;
controlling the motor to run to a preset frequency in a first direction for a preset number of times, and detecting the current of the motor to obtain a first working current when the motor runs to the preset frequency in the first direction each time;
controlling the frequency of the motor running to the preset frequency in the second direction to reach the preset frequency, and detecting the current of the motor when the motor runs to the preset frequency in the second direction each time so as to obtain a second working current;
and calculating the root mean square value of the plurality of first working currents and the plurality of second working currents as final working currents.
8. The weighing method of a washing machine according to claim 7, wherein:
the motor is controlled to alternately operate in a first direction and a second direction.
9. A washing machine, characterized by comprising:
a motor;
the driving module is connected with the motor and is used for driving the motor to operate;
the detection module is connected with the motor and is used for detecting the frequency rising time required by the motor running to a preset frequency and the current of the motor running to the preset frequency;
the control module is respectively connected with the driving module and the detection module, and is used for controlling the motor to run at a preset frequency, acquiring the frequency-rising time required by the motor to run at the preset frequency and the current when the motor runs at the preset frequency, acquiring a first load weight according to the frequency-rising time and a preset frequency-rising time-weight relation, acquiring a second load weight according to the current and a preset current-weight relation, acquiring an average value of the first load weight and the second load weight, and taking the average value as the weight of clothes in the washing machine.
10. A washing machine as claimed in claim 9, wherein:
the control module is also used for judging whether the washing times of the current washing machine are larger than the preset times, and if so, self-correcting operation is executed.
11. The washing machine as claimed in claim 10, wherein:
the self-correcting operation comprises: and obtaining the corrected weight by subtracting the average value from a first preset correction value, and taking the corrected weight as the weight of the clothes in the washing machine.
12. The washing machine as claimed in claim 10, wherein:
the self-correcting operation comprises:
obtaining corrected ascending frequency time-weight relation by subtracting a second preset correction value from each ascending frequency time of the preset ascending frequency time-weight relation, obtaining corrected current-weight relation by subtracting a third preset correction value from each current value of the preset current-weight relation, and resetting the washing times of the washing machine;
acquiring a third load weight according to the frequency rising time and the corrected frequency rising time-weight relation;
obtaining a fourth load weight according to the current and the corrected current-weight relationship;
and acquiring a corrected average value of the third load weight and the fourth load weight, and taking the corrected average value as the weight of the clothes in the washing machine.
13. A computer-readable storage medium having stored thereon a computer program, characterized in that:
the computer program, when executed by a processor, implements the steps of the washing machine weighing method of any one of the preceding claims 1 to 8.
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| CN112663283B (en) * | 2020-12-10 | 2023-03-24 | 珠海格力电器股份有限公司 | Eccentricity correction method and device |
| 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 |
| CN112853673A (en) * | 2020-12-31 | 2021-05-28 | Tcl家用电器（合肥）有限公司 | Load capacity determination method and device of washing machine, washing machine and storage medium |
| CN115748189A (en) * | 2021-09-02 | 2023-03-07 | 佛山市顺德区美的洗涤电器制造有限公司 | Drainage detection method in washing cavity, washing equipment and computer storage medium |
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