CN113355849A - Washing machine control method and device - Google Patents
Washing machine control method and device Download PDFInfo
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Abstract
The embodiment of the invention provides a control method and a control device of a washing machine, which are applied to the washing machine, wherein the washing machine comprises a rotary drum and a machine body, the center of the bottom of the rotary drum is provided with an acoustic wave sensor, and the acoustic wave sensor is used for sending detection waves to the machine body and receiving reflected waves of the machine body, and the method comprises the following steps: acquiring the receiving and sending duration from the sending of a detection wave to the receiving of a reflected wave by an acoustic wave sensor in the rotating process of the rotary barrel; determining the barrel body offset of the rotary barrel according to the receiving and sending time length and a preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body; and if the offset of the barrel body is greater than or equal to the preset offset threshold value, controlling the rotating barrel to stop rotating. The washing machine is used for preventing the rotary barrel from colliding with the machine body in the rotating process, avoiding damaging the rotary barrel and/or the machine body and improving the washing experience of a user.
Description
Technical Field
The embodiment of the invention relates to the technical field of washing machine control, in particular to a washing machine control method and device.
Background
A washing machine generally includes a spin-drying tub and a machine body. During the operation of the washing machine, the dehydration tub may generate vibration to collide with the machine body.
In the related art, the collision of the dehydrating tub with the machine body may be prevented by: dividing a rotating speed value (for example, from 0 to 1000) of the dewatering barrel into a plurality of rotating speed sections (for example, comprising 1-200, 201-600 and 601-1000), wherein each rotating speed section corresponds to an acceleration threshold value; acquiring an acceleration value corresponding to a rotating speed section acquired by an acceleration sensor, and if the acceleration value corresponding to the rotating speed section is greater than or equal to an acceleration threshold value corresponding to the rotating speed section, determining that the dewatering barrel can collide with the machine body; and if the acceleration value corresponding to the rotating speed section is smaller than the acceleration threshold value corresponding to the rotating speed section, determining that the dewatering barrel does not collide with the machine body.
In practical application, when the dewatering barrel operates in a rotating speed section (1-200), the acceleration is usually small due to low rotating speed, but the dewatering barrel may collide with the machine body. In the method, the acceleration value corresponding to the rotating speed section (1-200) acquired by the acceleration sensor is usually small, so that an error result that the dewatering barrel cannot collide with the machine body can be obtained according to the acceleration value and the acceleration threshold value corresponding to the rotating speed section, and further the dewatering barrel collides with the machine body.
Disclosure of Invention
The embodiment of the invention provides a control method of a washing machine, which is used for preventing a rotary drum from colliding with a machine body in a rotating process, avoiding damage to the rotary drum and/or the machine body and improving washing experience of a user.
In a first aspect, an embodiment of the present invention provides a control method for a washing machine, which is applied to a washing machine including a rotary tub and a machine body, wherein an acoustic wave sensor is disposed at a center of a bottom of the rotary tub, and the acoustic wave sensor is configured to transmit a detection wave to the machine body and receive a reflected wave from the machine body, and the method includes:
acquiring the receiving and sending duration from the sending of the detection wave to the receiving of the reflected wave by the sound wave sensor in the rotating process of the rotating barrel;
determining the barrel body offset of the rotary barrel according to the receiving and sending time length and a preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body;
and if the offset of the barrel body is greater than or equal to a preset offset threshold value, controlling the rotating barrel to stop rotating.
In one possible implementation mode, the number of the acoustic wave sensors is N, and N is greater than or equal to 1; wherein,
the N sound wave sensors transmit detection waves to the machine body along at least one direction of the transverse direction, the longitudinal direction or the vertical direction and receive reflected waves corresponding to the detection waves.
In another possible embodiment, N is equal to 3;
the first acoustic wave sensor sends a first detection wave to the machine body along the transverse direction and receives a first reflected wave corresponding to the first detection wave;
the second acoustic wave sensor sends a second detection wave to the machine body along the longitudinal direction and receives a second reflected wave corresponding to the second detection wave;
and the third sound wave sensor sends a third detection wave to the machine body along the vertical direction and receives a third reflected wave corresponding to the third detection wave.
In another possible embodiment, the obtaining a transceiving time period between the sending of the detection wave by the acoustic wave sensor and the receiving of the reflected wave includes:
acquiring a first receiving and sending time length from the first detection wave sent by the first sound wave sensor to the first reflected wave received by the first sound wave sensor;
acquiring a second transceiving time from the time when a second sound wave sensor sends the second detection wave to the time when the second reflection wave is received;
and acquiring a third transceiving time from the third sound wave sensor to the third detection wave to the third reflected wave receiving.
In another possible implementation, determining the barrel offset of the rotating barrel according to the transceiving time length and the preset distance includes
Determining a first barrel offset of the rotary barrel in the transverse direction according to the first transceiving time length and a first preset distance, wherein the first preset distance is a vertical distance between the first sound wave sensor and the machine body in the transverse direction;
determining a second barrel body offset of the rotating barrel in the longitudinal direction according to the second transceiving time length and a second preset distance, wherein the second preset distance is a vertical distance between the second sound wave sensor and the machine body in the longitudinal direction;
and determining the offset of the third barrel body of the rotating barrel in the vertical direction according to the third transceiving time and a third preset distance, wherein the third preset distance is the vertical distance between the third sound wave sensor and the machine body along the vertical direction.
In another possible implementation manner, if the barrel offset is greater than or equal to a preset offset threshold, controlling the rotating barrel to stop rotating includes:
if the offset of the first barrel body is greater than or equal to a first preset offset threshold value, controlling the rotating barrel to stop rotating; or,
if the offset of the second barrel body is greater than or equal to a second preset offset threshold value, controlling the rotating barrel to stop rotating; or,
and if the offset of the third barrel body is greater than or equal to a third preset offset threshold value, controlling the rotating barrel to stop rotating.
In another possible implementation manner, the determining, according to the first transceiving time length and the first preset distance, a first bucket offset of the rotating bucket in the transverse direction includes:
determining a first propagation distance according to the first transceiving time length and a preset speed, wherein the first propagation distance is the sum of the propagation distances of the first detection wave and the first reflection wave which propagate along the transverse direction;
and determining the first barrel offset of the rotary barrel in the transverse direction according to the first propagation distance and the first preset distance.
In a second aspect, an embodiment of the present invention provides a control apparatus for a washing machine, which is applied to a washing machine including a rotary tub and a machine body, wherein an acoustic wave sensor is disposed at a center of a bottom of the rotary tub, and the acoustic wave sensor is configured to transmit a detection wave to the machine body and receive a reflected wave from the machine body, and the apparatus includes: an acquisition module, a determination module, and a control module, wherein,
the acquisition module is used for acquiring the receiving and sending time length from the transmission of the detection wave to the reception of the reflected wave by the sound wave sensor in the rotating process of the rotating barrel;
the determining module is used for determining the barrel body offset of the rotating barrel according to the receiving and sending time length and a preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body;
the control module is used for controlling the rotating barrel to stop rotating if the barrel offset is larger than or equal to a preset offset threshold value.
In one possible implementation mode, the number of the acoustic wave sensors is N, and N is greater than or equal to 1; wherein,
the N sound wave sensors transmit detection waves to the machine body along at least one direction of the transverse direction, the longitudinal direction or the vertical direction and receive reflected waves corresponding to the detection waves.
In another possible embodiment, N is equal to 3;
the first acoustic wave sensor sends a first detection wave to the machine body along the transverse direction and receives a first reflected wave corresponding to the first detection wave;
the second acoustic wave sensor sends a second detection wave to the machine body along the longitudinal direction and receives a second reflected wave corresponding to the second detection wave;
and the third sound wave sensor sends a third detection wave to the machine body along the vertical direction and receives a third reflected wave corresponding to the third detection wave.
In another possible implementation manner, the obtaining module is specifically configured to:
acquiring a first receiving and sending time length from the first detection wave sent by the first sound wave sensor to the first reflected wave received by the first sound wave sensor;
acquiring a second transceiving time from the time when a second sound wave sensor sends the second detection wave to the time when the second reflection wave is received;
and acquiring a third transceiving time from the third sound wave sensor to the third detection wave to the third reflected wave receiving.
In another possible implementation, the determining module is specifically configured to:
determining a first barrel offset of the rotary barrel in the transverse direction according to the first transceiving time length and a first preset distance, wherein the first preset distance is a vertical distance between the first sound wave sensor and the machine body in the transverse direction;
determining a second barrel body offset of the rotating barrel in the longitudinal direction according to the second transceiving time length and a second preset distance, wherein the second preset distance is a vertical distance between the second sound wave sensor and the machine body in the longitudinal direction;
and determining the offset of the third barrel body of the rotating barrel in the vertical direction according to the third transceiving time and a third preset distance, wherein the third preset distance is the vertical distance between the third sound wave sensor and the machine body along the vertical direction.
In another possible implementation, the control module is specifically configured to:
if the offset of the first barrel body is greater than or equal to a first preset offset threshold value, controlling the rotating barrel to stop rotating; or,
if the offset of the second barrel body is greater than or equal to a second preset offset threshold value, controlling the rotating barrel to stop rotating; or,
and if the offset of the third barrel body is greater than or equal to a third preset offset threshold value, controlling the rotating barrel to stop rotating.
In a possible implementation, the determining module is specifically configured to:
determining a first propagation distance according to the first transceiving time length and a preset speed, wherein the first propagation distance is the sum of the propagation distances of the first detection wave and the first reflection wave which propagate along the transverse direction;
and determining the first barrel offset of the rotary barrel in the transverse direction according to the first propagation distance and the first preset distance.
In a third aspect, an embodiment of the present invention provides a washing machine control device, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory, causing the at least one processor to perform the washing machine control method of any one of the first aspects.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the washing machine control method according to any one of the first aspect is implemented.
The application provides a washing machine control method and a device, wherein the method comprises the following steps: acquiring the receiving and sending duration from the sending of a detection wave to the receiving of a reflected wave by an acoustic wave sensor in the rotating process of the rotary barrel; determining the barrel body offset of the rotary barrel according to the receiving and sending time length and a preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body; and if the offset of the barrel body is greater than or equal to the preset offset threshold value, controlling the rotating barrel to stop rotating. In the method, the barrel body offset of the rotary barrel is determined according to the receiving and sending time length and the preset distance, and if the barrel body offset is larger than or equal to the preset offset threshold, the rotary barrel is controlled to stop rotating, so that the rotary barrel can be prevented from colliding with a machine body in the rotating process, the rotary barrel and/or the machine body are prevented from being damaged, and the washing experience of a user is improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an application scenario of a control method for a washing machine according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for controlling a washing machine according to an embodiment of the present invention
FIG. 3 is a flowchart illustrating a washing machine control method according to an embodiment of the present invention
FIG. 4 is a schematic diagram illustrating an offset of a barrel body of a rotary barrel according to an embodiment of the present invention
FIG. 5 is a schematic diagram of a control device of a washing machine according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a hardware structure of a control device of a washing machine according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," and "fourth," if any, in the description and/or claims of the invention and the above-described figures are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic view of an application scenario of a washing machine control method according to an embodiment of the present invention. Referring to fig. 1, the washing machine includes a tub 101, a body 102, and a sound wave sensor 103. Wherein the acoustic wave sensor 103 is disposed at the center of the bottom of the rotary tub 101, and the acoustic wave sensor 103 can transmit a detection wave to the machine body 102 in a lateral direction and receive a reflected wave of the machine body 102.
In practical applications, during the rotation of the rotary tub 101, the rotary tub 101 may move from the solid line position to the dotted line position, and during the movement of the rotary tub 101 from the solid line position to the dotted line position, a control device (not shown in fig. 1) of the washing machine may determine a transceiving time according to a transmission time of the detection wave and a receiving time of the reflected wave, determine a tub offset Δ d of the rotary tub 101 during the rotation according to the transceiving time, and further control the rotary tub 101 to stop rotating according to the tub offset Δ d. In the above method, the rotating tub 101 is controlled to stop rotating according to the tub offset Δ d, and the rotating tub 101 can be prevented from colliding against the machine body 102 during the rotation. Further, the problem that in the prior art, when the acceleration value corresponding to the rotating speed section (1-200) acquired by the acceleration sensor is usually small, the error result that the dewatering barrel cannot collide with the machine body can be obtained possibly according to the acceleration value corresponding to the rotating speed section and the acceleration threshold value corresponding to the rotating speed section is solved.
Fig. 2 is a first flowchart illustrating a control method of a washing machine according to an embodiment of the present invention. As shown in fig. 2, the washing machine control method includes:
s201: and in the rotating process of the rotary barrel, acquiring the receiving and sending time length from the sending of the detection wave to the receiving of the reflected wave by the sound wave sensor.
Alternatively, the execution main body of the embodiment of the present invention may be a washing machine, and may also be a washing machine control device provided in the washing machine, and the washing machine control device may be implemented by a combination of software and/or hardware.
The washing machine comprises a rotary drum and a machine body (shown in figure 1), wherein N sound wave sensors are arranged at the center of the bottom of the rotary drum, N is greater than or equal to 1, and the sound wave sensors are used for sending detection waves to the machine body and receiving reflected waves of the machine body.
Alternatively, the acoustic wave sensor may periodically send the detection waves to the body in different directions (at least one of the transverse direction, the longitudinal direction, or the vertical direction), wherein the time length of the period may be 5 milliseconds, 10 milliseconds, and the like, and the transverse direction, the longitudinal direction, and the vertical direction are perpendicular to each other two by two.
The detection wave is an ultrasonic wave, and after the acoustic wave sensor transmits the detection wave to the body, the body may reflect the detection wave and reflect the reflected wave to the acoustic wave sensor.
In the present application, the washing machine control device may record a transmission time at which the detection wave is transmitted, record a reception time at which the reflected wave is received, and determine a time interval between the reception time and the transmission time as the transmission/reception time period.
S202: and determining the barrel body offset of the rotary barrel according to the receiving and sending time length and the preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body.
Specifically, the propagation distance of the detection wave and the reflection wave can be determined according to the receiving and sending time length and the preset speed, and then the barrel body offset of the rotary barrel can be determined according to the propagation distance and the preset distance.
Alternatively, the propagation distances of the detected wave and the reflected wave can be determined by the following feasible formula 1:
s1formula 1, ═ t · v/2;
wherein s is1For the propagation distance, t is the transmit-receive duration, and v is the preset speed. Specifically, the preset velocity v is equal to the speed of light.
Alternatively, the barrel offset of the rotating barrel can be determined by the following feasible formula 2:
Δd＝s0-s1formula 2;
where Δ d is the barrel offset, s0Is a preset distance. Specifically, the preset distance is a distance between the acoustic wave sensor and the body.
In the present embodiment, the method for controlling the washing machine is described by taking N equal to 1 as an example.
S203: and if the offset of the barrel body is greater than or equal to the preset offset threshold value, controlling the rotating barrel to stop rotating.
Wherein the preset offset threshold is a threshold pre-stored in the control device of the washing machine, and the threshold is set according to actual experiments.
Optionally, the washing machine may further include an audible and visual alarm device, which may generate a light and/or a voice for prompting a user to stop the rotation of the tub.
In practical application, when the washing machine control device controls the rotary barrel to stop rotating, the washing machine control device can also control the audible and visual alarm device to generate light and/or voice to prompt a user that the rotary barrel stops rotating.
And further, if the offset of the barrel body is smaller than a preset offset threshold value, controlling the rotary barrel to continuously rotate.
The application provides a washing machine control method, which comprises the following steps: acquiring the receiving and sending duration from the sending of a detection wave to the receiving of a reflected wave by an acoustic wave sensor in the rotating process of the rotary barrel; determining the barrel body offset of the rotary barrel according to the receiving and sending time length and a preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body; and if the offset of the barrel body is greater than or equal to the preset offset threshold value, controlling the rotating barrel to stop rotating. In the method, the barrel body offset of the rotary barrel is determined according to the receiving and sending time length and the preset distance, and if the barrel body offset is larger than or equal to the preset offset threshold, the rotary barrel is controlled to stop rotating, so that the rotary barrel can be prevented from colliding with a machine body in the rotating process, the rotary barrel and/or the machine body are prevented from being damaged, and the washing experience of a user is improved.
On the basis of the above embodiment, the following describes the washing machine control method provided by the present application in further detail by taking N equal to 3 as an example in combination with the embodiment of fig. 3, and specifically, please refer to the embodiment of fig. 3.
Fig. 3 is a second flowchart illustrating a control method of a washing machine according to an embodiment of the present invention. As shown in fig. 3, the washing machine control method includes:
s301: acquiring a first transceiving time from the time when the first acoustic wave sensor sends the first detection wave to the time when the first reflected wave is received; acquiring a second transceiving time from the time when the second sound wave sensor sends the second detection wave to the time when the second reflection wave is received; and acquiring a third transceiving time from the third sound wave sensor to the third reflected wave receiving.
In one possible embodiment, the first acoustic wave sensor transmits a first detection wave to the body in the transverse direction and receives a first reflected wave corresponding to the first detection wave, the second acoustic wave sensor transmits a second detection wave to the body in the longitudinal direction and receives a second reflected wave corresponding to the second detection wave, and the third acoustic wave sensor transmits a third detection wave to the body in the vertical direction and receives a third reflected wave corresponding to the third detection wave.
Specifically, first sonic transducer, second sonic transducer and third sonic transducer all set up the center in the commentaries on classics barrel head portion.
Alternatively, the first acoustic wave sensor, the second acoustic wave sensor, and the third acoustic wave sensor may be the same or different from each other. For example, when the first acoustic wave sensor, the second acoustic wave sensor, and the third acoustic wave sensor are the same, the frequencies of the first detection wave, the second detection wave, and the third detection wave are the same. For example, the first acoustic wave sensor, the second acoustic wave sensor, and the third acoustic wave sensor are different from each other, and the frequencies of the first detection wave, the second detection wave, and the third detection wave are different from each other.
It should be noted that, the method for acquiring the first transceiving time duration, the second transceiving time duration, and the third transceiving time duration may refer to the method for acquiring the transceiving time duration in S201 in the embodiment of fig. 2, and details are not described here.
S302: determining a first barrel offset of the rotary barrel in the transverse direction according to the first transceiving time length and the first preset distance; determining the offset of a second barrel body of the rotary barrel in the longitudinal direction according to the second transceiving time length and the second preset distance; and determining the offset of the third barrel body of the rotary barrel in the vertical direction according to the third transceiving time length and the third preset distance.
The first preset distance is the vertical distance between the first sound wave sensor and the machine body in the transverse direction, the second preset distance is the vertical distance between the second sound wave sensor and the machine body in the longitudinal direction, and the third preset distance is the vertical distance between the third sound wave sensor and the machine body in the vertical direction.
In a possible embodiment, determining a first barrel offset in the transverse direction according to the first transceiving time length and the first preset distance includes:
determining a first propagation distance according to the first transceiving time length and a preset speed, wherein the first propagation distance is the sum of the propagation distances of a first detection wave and a first reflection wave which propagate along the transverse direction;
and determining the first barrel offset of the rotating barrel in the transverse direction according to the first propagation distance and the first preset distance.
Specifically, the first propagation distance may be determined by the above equation 1, and the first bucket offset may be determined by the above equation 2.
In a possible implementation manner, determining a second barrel offset of the rotating barrel in the longitudinal direction according to the second transceiving time and the second preset distance includes:
determining a second propagation distance according to the second transceiving time length and the preset speed, wherein the second propagation distance is the sum of the propagation distances of a second detection wave and a second reflection wave which propagate along the transverse direction;
and determining the offset of the second barrel body of the rotating barrel in the longitudinal direction according to the second propagation distance and the second preset distance.
Specifically, the second propagation distance may be determined by the above equation 1, and the second barrel offset may be determined by the above equation 2.
In a possible implementation manner, determining an offset of the third barrel body of the rotating barrel in the vertical direction according to the third transceiving time length and the third preset distance includes:
determining a third propagation distance according to the third transceiving time length and the preset speed, wherein the third propagation distance is the sum of the propagation distances of a third detection wave and a third reflection wave which propagate along the vertical direction;
and determining the offset of the third barrel body of the rotary barrel in the vertical direction according to the third propagation distance and the third preset distance.
Specifically, the third propagation distance may be determined by the above equation 1, and the third barrel offset may be determined by the above equation 2.
S303: if the offset of the first barrel body is greater than or equal to a first preset offset threshold value, controlling the rotary barrel to stop rotating; or if the offset of the second barrel body is greater than or equal to a second preset offset threshold, controlling the rotating barrel to stop rotating; or if the offset of the third barrel body is greater than or equal to a third preset offset threshold value, controlling the rotating barrel to stop rotating.
The first preset offset threshold is a threshold corresponding to the offset of the first barrel, the second preset offset threshold is a threshold corresponding to the offset of the second barrel, and the third preset offset threshold is a threshold corresponding to the offset of the third barrel.
The application provides a washing machine control method, which comprises the following steps: acquiring a first transceiving time from the time when the first acoustic wave sensor sends the first detection wave to the time when the first reflected wave is received; acquiring a second transceiving time from the time when the second sound wave sensor sends the second detection wave to the time when the second reflection wave is received; acquiring a third transceiving time from the time when a third acoustic wave sensor sends a third detection wave to the time when the third reflection wave is received; determining a first barrel offset of the rotary barrel in the transverse direction according to the first transceiving time length and the first preset distance; determining the offset of a second barrel body of the rotary barrel in the longitudinal direction according to the second transceiving time length and the second preset distance; determining the offset of a third barrel body of the rotary barrel in the vertical direction according to the third transceiving time length and the third preset distance; if the offset of the first barrel body is greater than or equal to a first preset offset threshold value, controlling the rotary barrel to stop rotating; or if the offset of the second barrel body is greater than or equal to a second preset offset threshold, controlling the rotating barrel to stop rotating; or if the offset of the third barrel body is greater than or equal to a third preset offset threshold value, controlling the rotating barrel to stop rotating. In the method, if the offset of the first barrel body is greater than or equal to a first preset offset threshold value, the rotating barrel is controlled to stop rotating; or if the offset of the second barrel body is greater than or equal to a second preset offset threshold, controlling the rotating barrel to stop rotating; or, if the offset of the third barrel body is greater than or equal to the third preset offset threshold value, the rotating barrel is controlled to stop rotating, so that the rotating barrel can be effectively prevented from colliding with the machine body in the transverse direction, the longitudinal direction and the vertical direction, the rotating barrel and/or the machine body are/is prevented from being damaged, and the washing experience of a user is improved.
Fig. 4 is a schematic diagram illustrating a barrel offset of the rotating barrel according to an embodiment of the present invention. It should be noted that fig. 4 illustrates a schematic diagram showing the offset of the barrel body by taking an example in which one acoustic wave sensor is disposed at the center of the bottom of the rotating barrel and sends a detection wave to the machine body along the transverse direction. As shown in fig. 4, during the rotation of the rotating barrel, the rotating barrel may move from the solid line position to the dotted line position, and therefore the acoustic wave sensor disposed at the bottom of the rotating barrel also moves from the solid line position to the dotted line position, and therefore the barrel body offset Δ d is equal to the offset of the acoustic wave sensor, i.e. it can be determined by equation 2.
Fig. 5 is a schematic structural diagram of a control device of a washing machine according to an embodiment of the present invention. Washing machine controlling means is applied to washing machine, and washing machine includes rotary drum and organism, and the center of rotary drum bottom is provided with the sound wave sensor, and the sound wave sensor is used for sending the detection ripples to the organism, and receives the back wave of organism, and washing machine controlling means 10 includes: an acquisition module 11, a determination module 12 and a control module 13, wherein,
the obtaining module 11 is configured to obtain, during a rotation process of the rotary drum, a receiving and sending duration from the sending of the detection wave to the receiving of the reflected wave by the acoustic wave sensor;
the determining module 12 is configured to determine a barrel offset of the rotating barrel according to the transceiving time and a preset distance, where the preset distance is a distance between the acoustic wave sensor and the body;
the control module 13 is configured to control the rotating barrel to stop rotating if the barrel offset is greater than or equal to a preset offset threshold.
The washing machine control device provided by the embodiment of the invention can execute the technical scheme shown in the method embodiment, the implementation principle and the beneficial effect are similar, and the detailed description is omitted.
In one possible implementation mode, the number of the acoustic wave sensors is N, and N is greater than or equal to 1; wherein,
the N sound wave sensors transmit detection waves to the machine body along at least one direction of the transverse direction, the longitudinal direction or the vertical direction and receive reflected waves corresponding to the detection waves.
In another possible embodiment, N is equal to 3;
the first acoustic wave sensor sends a first detection wave to the machine body along the transverse direction and receives a first reflected wave corresponding to the first detection wave;
the second acoustic wave sensor sends a second detection wave to the machine body along the longitudinal direction and receives a second reflected wave corresponding to the second detection wave;
and the third sound wave sensor sends a third detection wave to the machine body along the vertical direction and receives a third reflected wave corresponding to the third detection wave.
In another possible implementation, the obtaining module 11 is specifically configured to:
acquiring a first receiving and sending time length from the first detection wave sent by the first sound wave sensor to the first reflected wave received by the first sound wave sensor;
acquiring a second transceiving time from the time when a second sound wave sensor sends the second detection wave to the time when the second reflection wave is received;
and acquiring a third transceiving time from the third sound wave sensor to the third detection wave to the third reflected wave receiving.
In another possible implementation, the determining module 12 is specifically configured to:
determining a first barrel offset of the rotary barrel in the transverse direction according to the first transceiving time length and a first preset distance, wherein the first preset distance is a vertical distance between the first sound wave sensor and the machine body in the transverse direction;
determining a second barrel body offset of the rotating barrel in the longitudinal direction according to the second transceiving time length and a second preset distance, wherein the second preset distance is a vertical distance between the second sound wave sensor and the machine body in the longitudinal direction;
and determining the offset of the third barrel body of the rotating barrel in the vertical direction according to the third transceiving time and a third preset distance, wherein the third preset distance is the vertical distance between the third sound wave sensor and the machine body along the vertical direction.
In another possible implementation, the control module 13 is specifically configured to:
if the offset of the first barrel body is greater than or equal to a first preset offset threshold value, controlling the rotating barrel to stop rotating; or,
if the offset of the second barrel body is greater than or equal to a second preset offset threshold value, controlling the rotating barrel to stop rotating; or,
and if the offset of the third barrel body is greater than or equal to a third preset offset threshold value, controlling the rotating barrel to stop rotating.
In a possible implementation, the determining module 12 is specifically configured to:
determining a first propagation distance according to the first transceiving time length and a preset speed, wherein the first propagation distance is the sum of the propagation distances of the first detection wave and the first reflection wave which propagate along the transverse direction;
and determining the first barrel offset of the rotary barrel in the transverse direction according to the first propagation distance and the first preset distance.
The washing machine control device provided by the embodiment of the invention can execute the technical scheme shown in the method embodiment, the implementation principle and the beneficial effect are similar, and the detailed description is omitted.
Fig. 6 is a schematic diagram of a hardware structure of a control device of a washing machine according to an embodiment of the present invention. The washing machine control device 20 may be provided in a terminal device. As shown in fig. 6, the washing machine control device 20 includes: at least one processor 21 and a memory 22. The processor 21 and the memory 22 are connected by a bus 23.
In a specific implementation, the at least one processor 21 executes computer-executable instructions stored by the memory 22, so that the at least one processor 21 performs the washing machine control method as above.
For a specific implementation process of the processor 21, reference may be made to the above method embodiments, which implement similar principles and technical effects, and this embodiment is not described herein again.
In the embodiment shown in fig. 6, it should be understood that the Processor may be a Central Processing Unit (CPU), other general-purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The present application also provides a computer-readable storage medium having stored therein computer-executable instructions, which when executed by a processor, implement the washing machine control method as described above.
The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.
The division of the units is only a logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A control method of a washing machine, applied to a washing machine including a rotary tub and a machine body, the rotary tub having a bottom center provided with a sound wave sensor for transmitting a detection wave to the machine body and receiving a reflected wave from the machine body, the method comprising:
acquiring the receiving and sending duration from the sending of the detection wave to the receiving of the reflected wave by the sound wave sensor in the rotating process of the rotating barrel;
determining the barrel body offset of the rotary barrel according to the receiving and sending time length and a preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body;
and if the offset of the barrel body is greater than or equal to a preset offset threshold value, controlling the rotating barrel to stop rotating.
2. The method of claim 1, wherein the number of acoustic wave sensors is N, N being greater than or equal to 1; wherein,
the N sound wave sensors transmit detection waves to the machine body along at least one direction of the transverse direction, the longitudinal direction or the vertical direction and receive reflected waves corresponding to the detection waves.
3. The method of claim 2, wherein N is equal to 3;
the first acoustic wave sensor sends a first detection wave to the machine body along the transverse direction and receives a first reflected wave corresponding to the first detection wave;
the second acoustic wave sensor sends a second detection wave to the machine body along the longitudinal direction and receives a second reflected wave corresponding to the second detection wave;
and the third sound wave sensor sends a third detection wave to the machine body along the vertical direction and receives a third reflected wave corresponding to the third detection wave.
4. The method according to claim 3, wherein said obtaining a transceiving time period between said acoustic wave sensor transmitting said detection wave and receiving said reflected wave comprises:
acquiring a first receiving and sending time length from the first detection wave sent by the first sound wave sensor to the first reflected wave received by the first sound wave sensor;
acquiring a second transceiving time from the time when a second sound wave sensor sends the second detection wave to the time when the second reflection wave is received;
and acquiring a third transceiving time from the third sound wave sensor to the third detection wave to the third reflected wave receiving.
5. The method of claim 4, wherein determining the barrel offset of the rotating barrel based on the transceiving time duration and the preset distance comprises
Determining a first barrel offset of the rotary barrel in the transverse direction according to the first transceiving time length and a first preset distance, wherein the first preset distance is a vertical distance between the first sound wave sensor and the machine body in the transverse direction;
determining a second barrel body offset of the rotating barrel in the longitudinal direction according to the second transceiving time length and a second preset distance, wherein the second preset distance is a vertical distance between the second sound wave sensor and the machine body in the longitudinal direction;
and determining the offset of the third barrel body of the rotating barrel in the vertical direction according to the third transceiving time and a third preset distance, wherein the third preset distance is the vertical distance between the third sound wave sensor and the machine body along the vertical direction.
6. The method of claim 5, wherein controlling the rotating barrel to stop rotating if the barrel offset is greater than or equal to a preset offset threshold comprises:
if the offset of the first barrel body is greater than or equal to a first preset offset threshold value, controlling the rotating barrel to stop rotating; or,
if the offset of the second barrel body is greater than or equal to a second preset offset threshold value, controlling the rotating barrel to stop rotating; or,
and if the offset of the third barrel body is greater than or equal to a third preset offset threshold value, controlling the rotating barrel to stop rotating.
7. The method according to claim 5 or 6, wherein the determining a first barrel offset in the lateral direction of the rotating barrel according to the first transceiving time length and the first preset distance comprises:
determining a first propagation distance according to the first transceiving time length and a preset speed, wherein the first propagation distance is the sum of the propagation distances of the first detection wave and the first reflection wave which propagate along the transverse direction;
and determining the first barrel offset of the rotary barrel in the transverse direction according to the first propagation distance and the first preset distance.
8. A control apparatus of a washing machine, applied to a washing machine including a tub and a body, a sound wave sensor provided at a center of a bottom of the tub, the sound wave sensor for transmitting a detection wave to the body and receiving a reflected wave of the body, the apparatus comprising: an acquisition module, a determination module, and a control module, wherein,
the acquisition module is used for acquiring the receiving and sending time length from the transmission of the detection wave to the reception of the reflected wave by the sound wave sensor in the rotating process of the rotating barrel;
the determining module is used for determining the barrel body offset of the rotating barrel according to the receiving and sending time length and a preset distance, wherein the preset distance is the distance between the sound wave sensor and the machine body;
the control module is used for controlling the rotating barrel to stop rotating if the barrel offset is larger than or equal to a preset offset threshold value.
9. A washing machine control device characterized by comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the washing machine control method of any one of claims 1 to 7.
10. A computer-readable storage medium, wherein a computer-executable instruction is stored therein, and when executed by a processor, implements the washing machine control method according to any one of claims 1 to 7.
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| CN202010149415.0A CN113355849A (en) | 2020-03-04 | 2020-03-04 | Washing machine control method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010149415.0A CN113355849A (en) | 2020-03-04 | 2020-03-04 | Washing machine control method and device |
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