CN114808410A

CN114808410A - Clothes dryer control method and clothes dryer device

Info

Publication number: CN114808410A
Application number: CN202210603311.1A
Authority: CN
Inventors: 郭飞; 栾强利
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-07-29

Abstract

An embodiment of the present application provides a dryer control method and a dryer apparatus, the method including: acquiring feedback values generated by the inner cylinder in a plurality of rotation periods, wherein the feedback values comprise displacement of the inner cylinder or a footing stress value of the box body; judging whether the clothes in the inner drum are wound according to a feedback value generated by the inner drum in each rotation period; if the judgment result is yes, the rotating direction of the motor in the box body is adjusted. According to the technical scheme, when the clothes in the inner drum are judged to be wound, the rotating direction of the motor in the box body is adjusted to unwind the wound clothes in the inner drum, so that the possibility that the clothes generate folds in the drying process is reduced, and the using satisfaction degree of the clothes dryer is further improved.

Description

Clothes dryer control method and clothes dryer device

Technical Field

The application relates to the field of clothes dryer control, in particular to a clothes dryer control method and clothes dryer equipment.

Background

Along with the continuous development of scientific and technological, people's life is more convenient, and the dryer equipment that has to dry to the clothing appears in people's life, but when present dryer equipment dried the clothing, because the clothing twines together extremely easily under the continuous rotatory drive in the inner tube, forms the winding group, not only can lead to the clothing to dry totally, also can make the clothing fold, and the influence is worn beautifully, leads to the user to feel relatively poor and the satisfaction lower to the experience of dryer.

Disclosure of Invention

To solve the above technical problem, embodiments of the present application provide a dryer control method and a dryer apparatus.

According to an aspect of an embodiment of the present application, there is provided a control method of a dryer including a cabinet in which an inner tub and a motor for driving the inner tub to rotate are disposed, the method including: acquiring feedback values generated by the inner cylinder in a plurality of rotation periods, wherein the feedback values comprise displacement of the inner cylinder or a foot stress value of the box body; judging whether the clothes in the inner drum are wound according to a feedback value generated by the inner drum in each rotation period; if the judgment result is yes, the rotating direction of the motor in the box body is adjusted.

In another exemplary embodiment, the acquiring feedback values of the inner barrel in a plurality of rotation cycles includes: acquiring feedback components generated by the inner cylinder at different acquisition time points in each rotation period; and calculating an average feedback component corresponding to each rotation period according to the feedback components of the different acquisition time points, and taking the average feedback component as the feedback value.

In another exemplary embodiment, the determining whether the laundry in the drum is entangled according to a feedback value generated by the drum in each rotation cycle includes: judging whether a target rotation period exists in a plurality of rotation periods of the inner cylinder, wherein a feedback value corresponding to the target rotation period is larger than a feedback value corresponding to a previous rotation period; if the judgment result is yes, the clothes in the inner drum are determined to be wound.

In another exemplary embodiment, the method further comprises: judging whether the clothes in the inner drum are unwound according to a feedback value generated by the inner drum in each rotation period; if yes, the rotation direction of the motor is restored.

In another exemplary embodiment, the determining whether the fabric items in the drum are unwound according to the feedback value generated by the drum in each rotation cycle includes: taking a feedback value generated by the inner cylinder in a previous rotation period of the target rotation period as an abnormal feedback value, and judging whether the feedback value generated by the inner cylinder in a rotation period after the target rotation period is smaller than the abnormal feedback value; if the number of the clothes in the inner drum is judged to be larger than the preset value, the clothes in the inner drum are determined to be not wound.

In another exemplary embodiment, the method further comprises: judging whether the clothes in the inner drum are dried or not according to the feedback value corresponding to each rotation period of the inner drum; if the judgment result is yes, the motor is turned off.

In another exemplary embodiment, the determining whether drying of the laundry in the drum is completed according to a feedback value generated by the drum in each rotation cycle includes: determining a preset number of continuous periods from the plurality of collected rotation periods; judging whether the feedback values generated by the inner cylinder in the continuous period are sequentially decreased; if so, continuously judging whether the difference value between the maximum feedback value and the minimum feedback value in the continuous period is smaller than a preset standard value; if the clothes drying device is judged to be yes, the clothes in the inner drum are determined to be dried.

According to an aspect of an embodiment of the present application, there is provided a dryer apparatus including: the box body is internally provided with an inner cylinder and a motor for driving the inner cylinder to rotate; the sensor assembly is arranged on the box body and used for acquiring feedback values generated by the inner barrel in a plurality of rotation periods; and the controller is electrically connected with the sensor assembly and is used for executing the method by reading prestored computer readable instructions.

In another exemplary embodiment, the sensor assembly includes a laser displacement sensor disposed on the housing, the laser displacement sensor being configured to acquire a displacement amount of the inner cylinder when the inner cylinder rotates, so as to use the displacement amount as the feedback value; or; and the stress sensor is arranged on a bottom foot of the box body and is used for acquiring a stress value of the bottom foot when the inner cylinder rotates so as to take the stress value as the feedback value.

In another exemplary embodiment, an air duct is further disposed in the box body, and a fan is disposed in the air duct and used for achieving circulation of the drying air in the inner barrel.

According to an aspect of embodiments of the present application, there is provided a computer-readable storage medium having stored thereon computer-readable instructions which, when executed by a processor of a computer, cause the computer to perform the method as described in the above embodiments.

According to the technical scheme of the embodiment of the application, feedback values generated by the inner drum in a plurality of rotation periods are collected, whether the clothes in the inner drum are wound or not is judged according to the feedback values generated by the inner drum in each rotation period, and if the clothes in the inner drum are wound, the rotating direction of the motor in the box body is adjusted to unwind the wound clothes in the inner drum, so that the possibility that wrinkles are generated in the clothes in the drying process is reduced, and the using satisfaction degree of the clothes dryer is further improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic view of a construction of a dryer apparatus to which the present application relates.

Fig. 2 is a flowchart illustrating a dryer control method according to an exemplary embodiment of the present application.

Fig. 3 is a flow chart of step S200 in an example embodiment in the embodiment shown in fig. 2.

Fig. 4 is a flow chart of step S210 in an example embodiment in the embodiment shown in fig. 2.

Fig. 5 is a flowchart illustrating a dryer control method according to another exemplary embodiment of the present application.

Fig. 6 is a flowchart of step S500 in yet another example embodiment in the embodiment shown in fig. 5.

Fig. 7 is a flowchart illustrating a dryer control method according to still another exemplary embodiment of the present application.

Fig. 8 is a flow chart of step S700 in an example embodiment in the embodiment shown in fig. 7.

Fig. 9 is a flowchart illustrating a dryer control method according to an exemplary embodiment of the present application.

Fig. 10 is a flowchart illustrating a dryer control method according to another exemplary embodiment of the present application.

Fig. 11 is a flowchart illustrating a dryer control method according to still another exemplary embodiment of the present application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

It should be noted that: reference herein to "a plurality" means two or more. "and/or" describe the association relationship of the associated objects, meaning that there may be three relationships, e.g., A and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Referring to fig. 1, fig. 1 is a schematic structural view of a clothes dryer apparatus according to the present application. The exemplary dryer apparatus 10 is provided with a cabinet 11, a sensor assembly and a controller in electrical signal communication with the sensor assembly.

The box 11 includes an inner cylinder 12 and a motor for driving the inner cylinder 12 to rotate, an air duct 13 is further disposed in the box 11, and a fan is disposed in the air duct 13, and the fan includes a first fan 14 and a second fan 15. When the first fan 14 is turned on and the second fan 15 is turned off, the drying air circulates in the inner tub 12 in a clockwise direction. When the first fan 14 is turned off and the second fan 15 is turned on, the drying air in the inner tub 12 circulates counterclockwise.

Sensor assembly is used for gathering the feedback value that the inner tube produced in a plurality of rotation periods, sensor assembly is including installing laser displacement sensor 16 on inner tube 12 to gather the displacement amount that inner tube 12 produced when rotatory through laser displacement sensor 16, thereby regard the displacement amount as feedback value, or sensor assembly also can be the atress sensor 18 of setting on footing 17 of box 11, with the atress value that footing 17 bore when inner tube 12 is rotatory is gathered through atress sensor 18, thereby regard the atress value as feedback value.

Based on the electric signal connection between the sensor assembly, the motor and the fan and the controller, the controller can acquire data transmitted by the sensor assembly and can also send control signals to the motor and the fan. In an embodiment related to the present application, the controller implements the releasing of the entangled state of the laundry in the drum by executing a dryer control method described in the following embodiments to improve the drying effect of the dryer, thereby enhancing the experience of the dryer. For a detailed process of releasing the winding state of the clothes in the drum, please refer to the description in the following embodiments, which will not be repeated herein.

Fig. 2 is a flowchart illustrating a dryer control method according to an exemplary embodiment of the present application. It is noted that the method is applicable to the dryer apparatus shown in fig. 1, and the method can be specifically executed by a controller provided in the dryer apparatus shown in fig. 1, for example, a computer readable instruction is stored in the controller in advance, or a computer readable instruction is stored in a memory provided in the dryer apparatus, and the controller executes the dryer control method by reading the computer readable instruction.

The method provided by the present embodiment will be described in detail below with a controller as an exemplary execution subject. As shown in fig. 2, in an exemplary embodiment, the method at least includes steps S200 to S230, which are described in detail as follows:

in step S200, feedback values generated by the inner barrel over a plurality of rotation cycles are collected.

First, it should be noted that the inner cylinder in the case of the dryer is driven by the motor to rotate, so that the inner cylinder generates displacement under the action of centrifugal force, and the case vibrates under the influence of the displacement of the inner cylinder and is transferred to the bottom feet of the case. Thus, the feedback values generated by the inner cylinder over multiple rotation cycles can include the amount of displacement of the inner cylinder or the amount of foot force of the case.

In this embodiment, since the feedback value generated by the inner drum in the rotation process is regular, the feedback value generated by the inner drum in a plurality of rotation periods can be collected first to determine whether the clothes in the inner drum are wound.

In step S210, it is determined whether the laundry in the drum is entangled according to a feedback value generated by the drum in each rotation period.

In this embodiment, after the feedback values generated in a plurality of rotation cycles of the drum are collected, whether the clothes in the drum are entangled can be judged according to the feedback values generated in each rotation cycle.

For example, if the feedback value of a certain rotation period of the drum is greater than the feedback value of the previous rotation period, the rule of the feedback value generated by the drum is destroyed, so as to determine that the clothes in the drum are entangled.

If yes, in step S220, the rotation direction of the motor in the housing is adjusted.

In the embodiment of the application, after the winding of the clothes in the inner drum is judged according to the feedback value, the rotation direction of the motor in the box body is adjusted to unwind the wound clothes.

For example, when the motor is rotating clockwise, and it is determined that the laundry in the drum is entangled, the rotating direction of the motor is adjusted to be counterclockwise, so that the laundry entangled by the clockwise rotation is changed to be counterclockwise, so as to unwind the entanglement of the laundry.

Through the embodiment, feedback values generated by the inner drum in a plurality of rotation cycles are collected, and whether the clothes in the inner drum are wound or not is judged according to the collected feedback values. The acting force generated by the rotation of the clothes in the inner drum can be completely released on the side wall of the inner drum to lift the centrifugal force of the inner drum, so that the displacement of the inner drum included by the feedback value can more accurately judge the winding condition of the clothes, and further the accuracy of judging whether the clothes are wound is improved; correspondingly, the vibration that clothing and inner tube in the inner tube produced also can be complete transmits to the footing of box to the stress value of footing that the feedback value includes also can promote the accuracy of judging whether the clothing takes place to twine.

Referring to fig. 3, fig. 3 is a flow chart of step S200 in an exemplary embodiment in the embodiment shown in fig. 2. As shown in fig. 3, the process of collecting feedback values generated by the inner barrel in a plurality of rotation cycles may include steps S300 to S310, which are described in detail as follows:

in step S300, feedback components generated by the inner barrel at different acquisition time points in each rotation cycle are acquired.

First, it should be noted that the collection time point is a time point at which the sensor assembly is controlled to collect the feedback value.

Wherein a single rotation period can set a plurality of acquisition time points; feedback values acquired at different acquisition time points in a single rotation period are taken as feedback components.

In step S310, an average feedback component corresponding to each rotation period is calculated according to the feedback components at different acquisition time points, and the average feedback component is used as a feedback value.

In this embodiment, after the feedback components generated by the inner cylinder at different collection time points in each rotation period are collected, the average feedback component corresponding to each rotation period can be calculated according to the feedback components at different collection time points, and the average feedback component is used as a feedback value to reduce the influence of the abnormal feedback component on the feedback value corresponding to a single rotation period, thereby improving the accuracy of data judgment and enabling the feedback value to reflect the feedback condition of the clothes dryer in the rotation period.

In an exemplary embodiment, where the sensor assembly is implemented as a laser displacement sensor, the average feedback component of the inner barrel per revolution can be calculated according to the following equation:

S _SUM ＝Σ(S ₁ ,S ₂ ,S ₃ ,S ₄ ,…,S _N )

wherein N represents the number of acquisition time points; s ₁ ,S ₂ ,S ₃ ,S ₄ ,…,S _N Representing the displacement of the inner cylinder acquired by the laser displacement sensor at different acquisition time points in a single rotation period so as to obtain the displacementAs a feedback component; s _SUM Representing the sum of feedback components acquired by the inner cylinder at different acquisition time points in a single rotation period; s _n Representing the average feedback component.

In another exemplary embodiment, where the sensor assembly is implemented as a force sensor, the average feedback component of the inner barrel per revolution can be calculated according to the following equation:

wherein N represents the number of acquisition time points;

representing stress values of the footing, which are acquired by the stress sensor at different acquisition time points in a single rotation period of the inner cylinder, so that each stress value is taken as a feedback component; f _SUM Representing the sum of the feedback components acquired by the inner cylinder at different acquisition time points in a single rotation cycle; f _n Representing the average feedback component.

Referring to fig. 4, fig. 4 is a flowchart of step S210 in an exemplary embodiment in the embodiment shown in fig. 2. As shown in fig. 4, the process of determining whether the laundry in the drum is entangled according to the feedback value generated by the drum in each rotation period may include steps S400 to S410, which are described in detail as follows:

in step S400, it is determined whether or not a target rotation period exists among a plurality of rotation periods of the inner cylinder.

And the feedback value corresponding to the target rotation period is larger than the feedback value corresponding to the previous rotation period. For example, the first rotation period corresponds to a feedback value of 20, and the second rotation period corresponds to a feedback value of 30. And if the first rotation period is the previous rotation period of the second rotation period, the feedback value corresponding to the second rotation period is larger than the first rotation period, so that the second rotation period is taken as the target rotation period.

In this embodiment, after the feedback values corresponding to the inner cylinder in the multiple rotation periods are acquired, it can be determined whether the target rotation period exists in the multiple rotation periods of the inner cylinder.

If a decision is made at step S410, it is determined that the laundry in the inner tub is entangled.

The whole weight of the clothes in the inner drum is gradually reduced under the condition that the clothes in the inner drum are continuously dried, so that the acting force exerted on the inner drum by the clothes is gradually reduced, and the displacement of the inner drum generated by centrifugal force is also reduced. However, if the laundry is entangled, the force applied to the inner tub by the laundry is increased, and the displacement of the inner tub caused by the centrifugal force is simultaneously increased.

In this embodiment, if there is a target rotation period in which the feedback value is greater than the feedback value of the previous rotation period, it is determined that the laundry in the drum is entangled.

Through the above embodiment, after the feedback values generated by the inner drum in a plurality of rotation cycles are collected, whether a target rotation cycle with a feedback value larger than that of the previous rotation cycle exists in the plurality of rotation cycles of the inner drum is judged, if not, the clothes in the inner drum are determined not to be wound, and if yes, the clothes in the inner drum are determined to be wound, so that the function of determining whether the clothes in the inner drum are wound is realized.

Referring to fig. 5, fig. 5 is a flowchart illustrating a dryer control method according to another exemplary embodiment of the present application. As shown in fig. 5, the method further includes steps S500 to S510 based on the method shown in fig. 4, and the following details are introduced:

in step S500, whether the laundry in the drum is disentangled is determined according to a feedback value generated by the drum in each rotation period.

In this embodiment, to determine whether the fabric items wrapped in the drum have been unwrapped, a determination can be made as to whether the fabric items in the drum have been unwrapped based on a feedback value generated by the drum during each rotation cycle.

And the mode of judging whether the clothes in the inner drum are unwound or not according to the feedback value can be flexibly set according to the requirement. In one example, a release threshold may be preset, and when a feedback value generated during a certain rotation period is less than the release threshold, it is determined that the laundry in the drum is released from being entangled. In another example, a feedback value corresponding to the target rotation period may be set as an abnormal feedback value, and when the feedback value generated in a certain rotation period is smaller than the abnormal feedback value, it is determined that the laundry in the drum is disentangled.

If yes, the rotation direction of the motor is returned in step S510.

In this embodiment, if the feedback value determines that the clothes are unwound, the rotation direction of the motor can be recovered to continue drying. That is, in one example, drying may be stopped while determining that the laundry in the drum is entangled and adjusting the rotation direction of the motor; until the clothes in the inner drum are determined to be unwound, the drying is continued, so that the aim of reducing the possibility of winding wrinkles generated on the clothes is fulfilled, and the wrinkle preventing effect of the clothes dryer is further improved.

In another example, when the winding of the clothes in the inner drum is determined and the rotation direction of the motor is adjusted, the fan is controlled to adjust the circulation of the drying air in the inner drum so as to quicken the winding of the clothes in the inner drum to be removed and synchronously dry the clothes; for example, turning off the first fan 16 and turning on the second fan 17 in fig. 1 to adjust the circulation of the drying gas in the drum 11 to a counterclockwise direction until it is determined that the laundry in the drum 11 is unwound, the rotation direction of the motor is restored, and turning off the second fan 17 and turning on the first fan 16 to restore the clockwise circulation of the drying gas in the drum 11.

Through the embodiment, when the clothes in the inner drum are wound, whether the clothes in the inner drum are wound off can be judged according to the feedback value generated in each rotation period of the inner drum, and after the clothes are judged to be wound off, the original rotation direction of the motor is recovered, and the drying process is continuously carried out.

Referring to fig. 6, fig. 6 is a flowchart of step S510 in an exemplary embodiment in the embodiment shown in fig. 5. As shown in fig. 6, the process of determining whether the laundry in the drum is disentangled according to the feedback value generated by the drum in each rotation cycle may include steps S600 to S610, which are described in detail as follows:

in step S600, a feedback value generated in a rotation period of the inner cylinder before the target rotation period is used as an abnormal feedback value, and it is determined whether or not the feedback value generated in the rotation period of the inner cylinder after the target rotation period is smaller than the abnormal feedback value.

When the clothes in the inner drum are wound, the feedback value generated in the target rotation period is higher than that generated in the previous rotation period when the clothes are not wound; therefore, when the clothes are unwound, the feedback value generated in the rotation period is lower than the feedback value corresponding to the target rotation period, and the clothes are still dried in the unwinding process, so that the feedback value generated after the clothes are unwound is also lower than the feedback value generated in the previous rotation period of the target rotation period.

In order to confirm whether the laundry is unwound or not, in the embodiment of the present application, a feedback value generated in a rotation cycle of the drum immediately before the target rotation cycle is set as an abnormal feedback value, and it is determined whether or not a feedback value generated in a rotation cycle of the drum immediately after the target rotation cycle is smaller than the abnormal feedback value.

If a decision is made at step S610, it is determined that the laundry in the inner tub is disentangled.

In this embodiment, whether the feedback value is smaller than the abnormal feedback value is determined according to the feedback value generated in the rotation period of the inner drum after the target rotation period, if so, the clothes in the inner drum are determined to be unwound, and if not, the clothes in the inner drum are determined not to be unwound.

As in the above example, if the second rotation period is the target rotation period and the feedback value generated in the second rotation period is 30, the feedback value 20 generated in the first rotation period before the second rotation period is used as the abnormal feedback value. And the third rotation period is a rotation period after the second rotation period, the feedback value generated by the third rotation period is 32, and if the feedback value generated by the third rotation period is larger than the abnormal feedback value, the clothes in the inner drum are determined not to be unwound. And after the fourth rotation period is after the third rotation period, the feedback value generated by the fourth rotation period is 15, and if the feedback value generated by the fourth rotation period is smaller than the abnormal feedback value, the clothes in the inner drum are determined to be unwound.

Through the above embodiment, after the clothes in the inner drum are wound, the feedback value generated by the inner drum in the previous rotation period of the target rotation period is used as the abnormal feedback value, and then whether the feedback value generated by the inner drum in the rotation period after the target rotation period is smaller than the abnormal feedback value is judged. And determining that the clothes in the inner drum are not wound if the feedback value generated in the rotation period of the inner drum after the target rotation period is smaller than the abnormal feedback value based on the condition that the feedback value generated in the rotation period of the inner drum after the target rotation period is smaller than the abnormal feedback value.

Referring to fig. 7, fig. 7 is a flowchart illustrating a dryer control method according to another exemplary embodiment of the present application. As shown in fig. 7, the method further includes steps S700 to S710 based on the method shown in fig. 2, and the following details are introduced:

in step S700, whether the drying of the laundry in the inner tub is completed is determined according to the feedback value corresponding to each rotation period of the inner tub.

It should be noted that, in the process of regularly drying the laundry, if the laundry is dried completely but the predetermined time is not reached, the laundry will still be dried, which not only wastes power resources, but also easily increases the possibility of wrinkles on the laundry.

In this embodiment, after the feedback values generated by the inner drum in a plurality of rotation cycles are collected, whether the drying of the clothes in the inner drum is completed can be judged according to the feedback value corresponding to each rotation cycle of the inner drum.

In one example, a standard feedback value can be preset, and then whether the feedback value is smaller than the standard feedback value is judged according to the feedback value corresponding to each rotation period of the inner cylinder, if yes, the clothes in the inner cylinder are determined to be dried.

In another example, after a standard feedback value is preset, a preset number of continuous cycles are determined from the collected multiple rotation cycles, whether the feedback values generated in the continuous cycles are all smaller than the standard feedback value is judged, and if the feedback values are judged to be smaller than the standard feedback value, it is determined that the drying of the clothes in the inner drum is completed.

If a yes judgment is made in step S710, the motor is turned off.

In order to save power resources after the clothes in the inner drum are dried, in the embodiment of the application, when the clothes in the inner drum are judged to be dried according to the feedback value corresponding to each rotation period of the inner drum, the motor is turned off, so that the possibility of increasing wrinkles on the clothes is reduced, and the using satisfaction degree of the clothes dryer is improved.

Referring to fig. 8, fig. 8 is a flowchart of step S700 in an exemplary embodiment in the embodiment shown in fig. 7. As shown in fig. 8, the process of determining whether drying of the laundry in the drum is completed according to the feedback value corresponding to each rotation cycle of the drum may include steps S800 to S830, which are described in detail as follows:

in step S800, a preset number of consecutive periods is determined from the plurality of acquired rotation periods.

In an exemplary embodiment, in the process of determining whether drying of the laundry in the inner tub is completed according to the feedback value corresponding to each rotation period of the inner tub, since the rotation period of the inner tub is more, in order to improve the determination accuracy and reduce the data volume, a preset number of consecutive periods may be determined from the collected multiple rotation periods.

The preset number can be flexibly set according to needs, for example, 10 continuous rotation periods or 20 continuous rotation periods are set.

In step S810, it is determined whether the feedback values generated by the inner cylinder in the continuous period are sequentially decreased.

It should be noted that the weight of the laundry may affect the magnitude of the feedback value generated by the drum during the rotation period. Therefore, during the continuous drying process of the clothes, the moisture in the clothes is gradually reduced, the clothes gradually become lighter, and the generated feedback value is also gradually reduced.

In this embodiment, after the preset number of consecutive periods is determined, it can be determined whether the feedback values generated by the inner drum in the consecutive periods are sequentially decreased, so as to determine whether the clothes in the inner drum are continuously dried without being entangled.

For example, if the preset number is set to 5, it is determined whether the feedback values corresponding to the collected 5 rotation periods are sequentially decreased, and if the feedback values corresponding to the fifth rotation period, the sixth rotation period, the seventh rotation period, the eighth rotation period, and the ninth rotation period are 20, 18, 16, 14, and 12, respectively, when the 5 consecutive periods are the fifth rotation period, the sixth rotation period, the seventh rotation period, the eighth rotation period, and the ninth rotation period, respectively, the feedback values generated in the consecutive periods are sequentially decreased, and it is determined that the laundry in the inner tub is continuously dried without being entangled. If the feedback values corresponding to the fifth rotation period, the sixth rotation period, the seventh rotation period, the eighth rotation period, and the ninth rotation period are 20, 18, 22, and 14, respectively, the feedback values generated in the consecutive periods are not sequentially decreased, and it is determined as no. And the laundry is wound in the seventh rotation period and the eighth rotation period and is unwound in the ninth rotation period.

In step S820, if yes, it is continuously determined whether the difference between the maximum feedback value and the minimum feedback value in the continuous period is smaller than a preset standard value.

The preset standard value is used for determining whether drying of the clothes in the inner drum is completed, the setting mode of the standard value can be flexibly set according to needs, and in one example, different standard values can be set according to the weight of the clothes in the inner drum. In another example, different standard values may be set according to the drying degree set by the dryer.

In this embodiment, if it is determined that the feedback values generated by the inner drum in the continuous period are sequentially decreased, it indicates that the clothes in the inner drum are not wound and are continuously dried, and it can be determined whether the difference between the maximum feedback value and the minimum feedback value in the continuous period is smaller than a preset standard value.

As in the above example, if the feedback values corresponding to the fifth rotation period and the ninth rotation period are the maximum feedback value and the minimum feedback value in the continuous period, the difference between the feedback values corresponding to the fifth rotation period and the ninth rotation period is 8, and if the preset standard value is set to 7, the difference between the maximum feedback value and the minimum feedback value is smaller than the preset standard value, so as to determine that the drying of the laundry in the drum is completed. If the preset standard value is set to 10, the preset standard value is larger than the difference value between the maximum feedback value and the minimum feedback value, which indicates that the clothes in the inner drum cannot be dried, and thus the feedback value generated by the inner drum in the next rotation period needs to be continuously obtained for judgment.

If yes, it is determined in step S830 that drying the laundry in the inner tub is completed.

In this embodiment, if it is determined that the difference between the maximum feedback value and the minimum feedback value in the continuous period is smaller than the preset standard value, it is determined that drying the laundry in the inner drum is completed.

In one example, after the feedback values generated by the inner drum in the continuous period are sequentially decreased, whether the difference value between the maximum feedback value and the minimum feedback value in the continuous period is smaller than a preset standard value is judged, so that when the clothes are not wound, it is determined that the drying of the clothes in the inner drum is completed, and the motor is stopped.

See fig. 9. Fig. 9 is a flowchart illustrating a method of controlling the dryer, which may further include steps S900 to S910 when the feedback value is implemented as the displacement amount of the inner drum, according to an embodiment of the present application, as described in detail below.

In step S900, the average displacement is calculated once every time the inner cylinder rotates one revolution.

In the process of rotating the inner cylinder, the displacement generated by the inner cylinder at different acquisition time points is acquired, and then the average displacement generated by the inner cylinder in the rotation period is calculated according to the displacement acquired at different time points.

In the step S910, in the step S,every five revolutions, judging whether the average displacement amount of the inner cylinder in the five revolutions is S _n+1 ≥S _n+2 ≥S _n+3 ≥S _n+4 ≥S _n+5 And the maximum displacement average S of the inner cylinder in five rotation periods _n+1 With the minimum displacement average S _n+5 Whether the difference of (A) is less than M _Terminate 。

Every five revolutions is a continuous period with the preset number of five determined from a plurality of revolutions of the inner cylinder. S _n+1 The average displacement corresponding to one circle of rotation of the inner cylinder; s _n+2 The average displacement corresponding to two rotations of the inner cylinder is obtained; s _n+3 The average displacement corresponding to three revolutions of the inner cylinder; s _n+4 The average displacement quantity corresponding to the periphery of the rotation of the inner cylinder is calculated; s _n+5 The average displacement corresponding to five-cycle rotation of the inner cylinder; m _Terminate Is a preset standard value.

The step S910 includes steps S920 and S930.

In step S920, if yes, it is determined that the drying of the laundry is completed.

If the average displacement quantity of the inner cylinder corresponding to five continuous periods is S _n+1 ≥S _n+2 ≥S _n+3 ≥S _n+4 ≥S _n+5 And S is _n+1 -S _n+5 Less than M _Terminate The clothes in the inner drum can be determined to be dried, and the clothes are not wound.

If no, the laundry is continuously dried in step S930.

If the average displacement of the inner cylinder in five continuous periods does not show S _n+1 ≥S _n+2 ≥S _n+3 ≥S _n+4 ≥S _n+5 If the clothes in the inner drum are wound, the winding of the clothes needs to be removed; if S _n+1 -S _n+5 Greater than M _Terminate If the drying is not finished, the clothes in the inner drum need to be dried continuously.

See fig. 10. Fig. 10 is a flowchart illustrating a method of controlling the dryer, which may further include steps S1000 to S1110 when the motor is rotated in a forward direction and the feedback value is implemented as a displacement amount of the inner drum, as described in detail below, according to an embodiment of the present application.

In step S1000, the motor rotates in the forward direction.

In step S1010, the laundry is dried.

In step S1020, it is determined whether drying of the laundry is completed.

The specific manner for determining whether the drying of the laundry is completed is described in detail in step S900 to step S910 in fig. 9, and is not described herein again. Step S1020 further includes step S1030 and step S1040.

In step S1030, if yes, the motor stops operating.

After the clothes are determined to be dried, the motor is controlled to stop running for saving resources.

In step S1040, if no, the laser displacement sensor collects the displacement generated by the inner cylinder in the rotation period in real time.

In step S1050, once the inner cylinder rotates one circle, the average displacement value corresponding to the current rotation period of the inner cylinder is calculated.

The specific way of calculating the displacement average value is described in detail in steps S300 to S310 in fig. 3, and is not described herein again.

In step S1060, the average value S of the displacement of the inner cylinder in the current rotation period is calculated _n Average value S of displacement corresponding to previous rotation period of inner cylinder _n-1 A comparison is made.

In step S1070, the average value S of the displacement of the inner cylinder in the current rotation period is determined _n Whether the displacement is smaller than the average value S of the displacement corresponding to the previous rotation period of the inner cylinder _n-1 。

If yes, the process goes to step S1010, and if no, the process goes to step S1080.

In step S1080, the average value S of the displacement of the inner cylinder in the previous rotation period _n-1 Marking as M _In And (4) stopping.

When the average value of the displacement corresponding to the current rotation period of the inner cylinder is larger than the average value of the displacement corresponding to the previous rotation period of the inner cylinderAnd then, the clothes in the inner drum are determined to be wound. The average value S of the displacement corresponding to the previous rotation period of the inner cylinder _n-1 Marking as M _Pause As an abnormal feedback value, so as to determine that the laundry in the drum is unwound by comparing the average value of the displacement of the drum generated in the subsequent rotation period with the abnormal feedback value.

In step S1090, the motor stops operating.

In step S1100, the first fan is turned on and the second fan is turned off.

Referring to fig. 1, the first fan is turned on and the second fan is turned off, thereby changing a circulation direction of the drying air in the drum to improve efficiency of releasing entanglement of the laundry in the drum by the drying air.

In step S1110, the motor is operated in reverse.

See fig. 11. Fig. 11 is a flowchart illustrating a method of controlling the dryer, which may further include steps S2000 to S2110 when the forward rotation of the motor is switched to the reverse rotation and the feedback value is implemented as the displacement amount of the inner drum, as described in detail below.

In step S2000, the motor is operated in reverse.

In step S2010, laundry drying is performed.

In step S2020, it is determined whether drying of the laundry is completed.

Step S2020 includes step S2030 and step S2040.

If yes, in step S2030, the motor stops operating.

In step S2040, if no, the laser displacement sensor collects the displacement of the inner cylinder generated in the rotation period in real time.

In step S2050, once the inner cylinder rotates one circle, the average displacement value corresponding to the current rotation period of the inner cylinder is calculated.

In step S2060, the average value S of the displacement of the inner cylinder corresponding to the current rotation period _n And M _Pause A comparison is made.

In step S2070, the inner cylinder is judgedThe average value S of the displacement corresponding to the current rotation period _n Whether or not less than M _Stopping 。

If not, the process skips to step S2010, and if yes, the process goes to step S2080.

In step S2080, it is determined that the laundry in the inner tub is restored to the state before winding.

When judging the displacement average value S corresponding to the current rotation period of the inner cylinder _n Whether or not less than M _Pause And then, determining that the clothes in the inner drum are restored to the state before winding.

In step S2090, the motor stops operating.

In step S2100, the first fan is turned off and the second fan is turned on.

Referring to fig. 1, the first fan is turned off and the second fan is turned on, so that the circulation direction of the drying air in the inner tub is changed again to match the rotation direction of the laundry in the inner tub, thereby improving the drying efficiency of the dryer.

In step S2110, the motor is operated in the forward direction.

The following describes embodiments of the apparatus of the present application that may be used to implement the dryer control methods of the above-described embodiments of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the control method of the clothes dryer described above in the present application.

A dryer control apparatus according to an embodiment of the present application includes: the acquisition module is configured to acquire feedback values generated by the inner cylinder in a plurality of rotation periods, wherein the feedback values comprise displacement of the inner cylinder or a footing stress value of the box body; the first functional module is configured to judge whether the clothes in the inner drum are wound according to a feedback value generated by the inner drum in each rotation period; and the first execution module is configured to adjust the rotation direction of the motor in the box body if the judgment result is yes.

In some embodiments of the present application, based on the foregoing solution, the acquisition module includes: the first acquisition unit is configured to acquire feedback components generated by the inner cylinder at different acquisition time points in each rotation period; and the calculating unit is configured to calculate an average feedback component corresponding to each rotation period according to the feedback components of different acquisition time points, and the average feedback component is used as a feedback value.

In some embodiments of the present application, based on the foregoing solution, the first function module includes: the first judgment unit is configured to judge whether a target rotation period exists in a plurality of rotation periods of the inner cylinder, and a feedback value corresponding to the target rotation period is larger than a feedback value corresponding to a previous rotation period; and a first determining unit configured to determine that the clothes in the inner drum are entangled if the determination result is yes.

In some embodiments of the present application, based on the foregoing solution, the dryer control apparatus further includes: the second functional module is configured to judge whether the clothes in the inner drum are unwound or not according to a feedback value generated by the inner drum in each rotation period; and the second execution module is configured to restore the rotation direction of the motor if the judgment result is yes.

In some embodiments of the present application, based on the foregoing solution, the second function module includes: a second judging unit configured to judge whether a feedback value generated by the inner cylinder in a rotation period subsequent to the target rotation period is smaller than an abnormal feedback value, with the feedback value generated by the inner cylinder in a rotation period previous to the target rotation period as the abnormal feedback value; and a second determining unit configured to determine that the clothes in the inner drum are not wound if the judgment result is yes.

In some embodiments of the present application, based on the foregoing solution, the dryer control apparatus further includes: the third functional module is configured to judge whether the drying of the clothes in the inner drum is finished according to a feedback value corresponding to each rotation period of the inner drum; and a third execution module. The motor is configured to be turned off if the judgment result is yes.

In some embodiments of the present application, based on the foregoing solution, the third functional module includes: the selecting unit is configured to determine a preset number of continuous cycles from the collected multiple rotation cycles; the third judging unit is configured to judge whether the feedback values generated by the inner cylinder in the continuous period are sequentially decreased; if so, continuously judging whether the difference value between the maximum feedback value and the minimum feedback value in the continuous period is smaller than a preset standard value; and the third determining unit is configured to determine that the drying of the clothes in the inner drum is finished if the determination result is yes.

It should be noted that the apparatus provided in the foregoing embodiment and the method provided in the foregoing embodiment belong to the same concept, and the specific manner in which each module and unit execute operations has been described in detail in the method embodiment, and is not described again here.

It should be noted that the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a flash Memory, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with a computer program embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present application may be implemented by software or hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.

As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A control method of a clothes dryer including a cabinet provided therein with an inner drum and a motor for driving the inner drum to rotate, characterized by comprising:

collecting feedback values generated by the inner cylinder in a plurality of rotation periods, wherein the feedback values comprise displacement of the inner cylinder or a foot stress value of the box body;

judging whether the clothes in the inner drum are wound according to a feedback value generated by the inner drum in each rotation period;

if the judgment result is yes, the rotating direction of the motor in the box body is adjusted.

2. The method of claim 1, wherein the collecting feedback values for the inner barrel over a plurality of rotation cycles comprises:

acquiring feedback components generated by the inner cylinder at different acquisition time points in each rotation period;

and calculating an average feedback component corresponding to each rotation period according to the feedback components of the different acquisition time points, and taking the average feedback component as the feedback value.

3. The method of claim 1, wherein said determining whether the fabric items in the drum are entangled based on the feedback value generated by the drum during each rotation cycle comprises:

judging whether a target rotation period exists in a plurality of rotation periods of the inner cylinder, wherein a feedback value corresponding to the target rotation period is larger than a feedback value corresponding to a previous rotation period;

if the judgment result is yes, the clothes in the inner drum are determined to be wound.

4. The method of claim 3, further comprising:

judging whether the clothes in the inner drum are unwound or not according to a feedback value generated by the inner drum in each rotation period;

if yes, the rotation direction of the motor is restored.

5. The method of claim 4, wherein said determining whether the fabric items in the drum are unwound from the feedback value generated by the drum during each rotation cycle comprises:

taking a feedback value generated by the inner cylinder in a previous rotation period of the target rotation period as an abnormal feedback value, and judging whether the feedback value generated by the inner cylinder in a rotation period after the target rotation period is smaller than the abnormal feedback value;

if the number of the clothes in the inner drum is judged to be larger than the preset value, the clothes in the inner drum are determined to be not wound.

6. The method of claim 1, further comprising:

judging whether the clothes in the inner drum are dried or not according to the feedback value corresponding to each rotation period of the inner drum;

if the judgment result is yes, the motor is turned off.

7. The method of claim 6, wherein said determining whether drying of the fabric items in the drum is complete based on the feedback generated by the drum during each rotation cycle comprises:

determining a preset number of continuous periods from the plurality of collected rotation periods;

judging whether the feedback values generated by the inner cylinder in the continuous period are sequentially decreased;

if so, continuously judging whether the difference value between the maximum feedback value and the minimum feedback value in the continuous period is smaller than a preset standard value;

if the clothes drying device is judged to be yes, the clothes in the inner drum are determined to be dried.

8. A clothes dryer apparatus, characterized by comprising:

the box body is internally provided with an inner cylinder and a motor for driving the inner cylinder to rotate;

the sensor assembly is arranged on the box body and used for acquiring feedback values generated by the inner barrel in a plurality of rotation periods;

a controller electrically connected to the sensor assembly for reading pre-stored computer readable instructions to perform the method of any one of claims 1-7.

9. The clothes dryer apparatus of claim 8 wherein:

the sensor component comprises a laser displacement sensor arranged on the box body, and the laser displacement sensor is used for collecting the displacement of the inner cylinder when the inner cylinder rotates so as to take the displacement as the feedback value;

or;

and the stress sensor is arranged on a bottom foot of the box body and is used for acquiring a stress value of the bottom foot when the inner cylinder rotates so as to take the stress value as the feedback value.

10. The clothes dryer apparatus of claim 8 wherein:

an air duct is further arranged in the box body, a fan is arranged in the air duct, and the fan is used for achieving circulation of drying air in the inner barrel.