CN112899969B - Control method and device for washing machine and direct current motor washing machine - Google Patents
Control method and device for washing machine and direct current motor washing machine Download PDFInfo
- Publication number
- CN112899969B CN112899969B CN201911136530.8A CN201911136530A CN112899969B CN 112899969 B CN112899969 B CN 112899969B CN 201911136530 A CN201911136530 A CN 201911136530A CN 112899969 B CN112899969 B CN 112899969B
- Authority
- CN
- China
- Prior art keywords
- sensing element
- radar sensing
- washing machine
- motor
- threshold value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The application relates to the technical field of washing machines, and discloses a control method for a washing machine, wherein the washing machine comprises a machine shell and a radar sensing element arranged on the machine shell, and the control method comprises the following steps: acquiring the motor rotation speed of the washing machine; and adjusting the detection threshold value of the radar sensing element according to the rotation speed of the motor. The detection threshold value of the radar sensing element can be adjusted according to the motor rotation speed of the washing machine, noise interference of the radar sensing element caused by motor operation of the washing machine is reduced, and the detection accuracy of the radar sensing element is improved. The application also discloses a control device for the washing machine and a direct current motor washing machine.
Description
Technical Field
The application relates to the technical field of washing machines, in particular to a control method and device for a washing machine and a direct current motor washing machine.
Background
At present, more and more intelligent household devices are provided with radar sensors for sensing activities of users so as to provide more intelligent services for the users and improve user experience, such as intelligent household devices like intelligent toilets.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: most of the existing intelligent household equipment provided with the radar sensor does not need to move in the working state, and compared with the intelligent household equipment, the washing machine is in the working state, the washing barrel of the washing machine is required to rotate at a set rotating speed, so that the radar sensor is interfered, the detection accuracy of the radar sensor is affected, and the application of the radar sensor on the washing machine is hindered.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a control method and device for a washing machine and a direct current motor washing machine, so as to solve the technical problems that a radar sensor is interfered and the application of the radar sensor on the washing machine is affected due to the rotation of a washing barrel of the washing machine.
In some embodiments, there is provided a control method for a washing machine including a cabinet, and a radar sensing element provided to the cabinet, the control method including: acquiring the motor rotation speed of the washing machine; and adjusting the detection threshold value of the radar sensing element according to the rotating speed of the motor.
In some embodiments, a control device for a washing machine is provided, comprising a processor and a memory storing program instructions, the processor, when executing the program instructions, performing a control method as described above.
In some embodiments, there is provided a direct current washing machine including: a housing; the radar sensing element is arranged on the shell and is provided with a radar sensing element shielding cover for shielding noise; a display element provided to the casing and configured to increase brightness of the display element when the radar sensor element reaches a detection threshold; and the direct current power supply module is connected with an external alternating current power supply and is configured to convert the external alternating current into direct current and provide the direct current for a direct current motor of the washing machine.
The control method and device for the washing machine and the direct current motor washing machine provided by the embodiment of the disclosure can realize the following technical effects:
according to the control method for the washing machine, the detection threshold value of the radar sensing element is adjusted according to the motor rotating speed of the washing machine, noise interference generated by the radar sensing element due to motor operation of the washing machine is reduced, and the detection accuracy of the radar sensing element is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
fig. 1 is a schematic view of a structure of a washing machine provided in an embodiment of the present disclosure;
fig. 2 is a flowchart illustrating a control method for a washing machine according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of a radome for radar sensing elements provided by embodiments of the present disclosure;
FIG. 4 is a schematic diagram of a recess of a radome for radar sensing elements provided by embodiments of the present disclosure;
fig. 5 is a schematic structural view of a control device for a washing machine according to an embodiment of the present disclosure.
Reference numerals:
21: a housing; 22: a radar sensing element; 221: an upper surface of the radar sensing element; 23: a radar sensing element shield; 231: the top surface of the recess of the radar sensing element shield.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
For ease of understanding, several concepts related to embodiments of the application are described below.
The radar sensing element is composed of a microwave oscillator, an amplifying and shaping circuit and a detection circuit. When the radar sensing element works, the microwave oscillator emits ultra-high frequency electromagnetic waves outwards through the antenna on the printed circuit board, if moving objects exist around the radar sensing element according to the microwave Doppler principle, the antenna receives the electromagnetic waves reflected by the moving objects, the frequency of the reflected electromagnetic waves and the frequency of the electromagnetic waves emitted outwards by the radar sensing element have certain frequency difference, after the frequency difference is received by the detection circuit, the radar sensing element senses the moving objects around, and after the frequency difference is amplified and shaped, a control signal can be output to other elements.
The radar sensing element shielding cover is a shielding cover additionally arranged outside the radar sensing element and can be used for preventing rear signals of the radar sensing element from leaking.
The DC brushless motor consists of a motor main body and a driver; the stator winding of the motor adopts a three-phase symmetrical star connection method; the rotor of the motor is stuck with a magnetized permanent magnet; a position sensor is arranged in the motor; the driver is composed of a power electronic device, an integrated circuit and the like, and has the following functions: receiving starting, stopping and braking signals of the motor to control the starting, stopping and braking of the motor; receiving a position sensor signal and a forward and backward rotation signal, and controlling the on-off of each power tube of the inverter bridge to generate continuous torque; a speed command and a speed feedback signal are received for controlling and adjusting the rotational speed.
As shown in fig. 1, the washing machine in the embodiment of the present disclosure includes a cabinet 21 and a radar sensing element 22 provided to the cabinet. The radar sensor 22 is disposed near the top of the casing 21, and is configured to sense a moving object around the washing machine, and the radar sensor 22 sends a control signal to other parts of the washing machine to perform related operations after sensing the moving object.
As shown in fig. 2, an embodiment of the present disclosure provides a control method for a washing machine including a cabinet, and a radar sensing element provided to the cabinet, the control method including:
step S11, obtaining the motor rotation speed of the washing machine;
and step S12, adjusting the detection threshold value of the radar sensing element according to the rotation speed of the motor.
In some embodiments, the motor of the washing machine is a brushless DC motor, and the motor speed of the washing machine can be obtained through a speed sensor arranged on the brushless DC motor. The rotating speed sensor transmits the measured rotating speed information of the motor to the main control module of the washing machine, and the radar sensing element receives the rotating speed information of the motor sent by the main control module of the washing machine in real time and adjusts the detection threshold value in a self-adaptive manner through the rotating speed information of the motor. Wherein, the main control module of the washing machine is communicated with the radar sensing element through a serial port.
After the washing machine starts to operate, acquiring the motor operation rotating speeds of different washing stages of the washing machine through a rotating speed sensor arranged on a motor of the washing machine, wherein the acquired motor rotating speed is 50 revolutions per minute; the motor operating speed is sent to the radar sensing element, which determines different detection values depending on the different motor speeds, for example, the detection threshold of the radar sensing element may be 290mv when the acquired motor speed is 50 revolutions per minute. Further, when the output signal of the radar sensing element reaches 290mv, an induction signal is sent to a main control module of the washing machine, and after the main control module of the washing machine receives the induction signal, the brightness of a display element of the washing machine is adjusted or sound of the washing machine is controlled to play a section of broadcast.
Optionally, when the acquired motor rotation speed of the washing machine is 50 revolutions per minute, the detection threshold value of the radar sensing element is 290mv, when the output signal of the radar sensing element reaches 290mv, it is considered that a user is detected in the detection area of the radar sensing element, that is, the user is close to the washing machine, the sensing signal is sent to the main control module of the washing machine, and after the main control module of the washing machine receives the sensing signal, the brightness of a display screen installed on the washing machine is increased, so that the user can see the current washing progress, or the current washing progress of an audio installed on the washing machine is controlled to play. Alternatively, the washing progress may include one or more of a current washing mode, a remaining time of the current washing mode, and a remaining washing time.
In the same washing mode, the motor rotation speeds of the washing machine may be different, and at this time, the detection threshold values of different radar sensing elements can be obtained by adjusting according to the different motor rotation speeds in the same washing mode; or, under different washing modes, the motor rotating speed of the washing machine may be different, at this time, the detection threshold values of different radar sensing elements can be adjusted and obtained according to the different motor rotating speeds under different washing modes, namely, the detection threshold values of the radar sensing elements are adjusted in a self-adaptive manner, so that the accuracy of the detection of the radar sensing elements in the whole washing process of the washing machine is improved.
At present, the detection threshold value of the radar sensing element is a fixed value, and if the fixed value is set too low, the radar sensing element can be interfered by noise generated by the rotation of a motor of the washing machine, so that the detection accuracy of the radar sensing element is affected; if the constant value is set too high, the sensitivity of detection by the radar sensor element is lowered. According to the control method provided by the embodiment of the disclosure, the detection threshold value of the radar sensing element is adjusted according to the motor rotating speed of the washing machine, so that the detection threshold value of the radar sensing element can be adjusted in a self-adaptive mode according to the motor rotating speed of the washing machine, the interference of motor rotation on the radar sensing element is reduced, and the accuracy and the sensitivity of detection of the radar sensing element are improved.
In some embodiments, adjusting the detection threshold of the radar sensing element based on the motor speed includes: the greater the motor speed, the greater the detection threshold of the radar sensing element.
In some embodiments, the detection threshold of the different radar sensing elements is determined from different motor speeds. The interference degree of the motor rotation speed on the radar sensing element is different, so that the noise interference of the radar sensing element is larger when the motor rotation speed is larger. According to the control method provided by the embodiment of the disclosure, the larger the motor rotating speed of the washing machine is, the larger the detection threshold value of the radar sensing element is, and the accuracy of radar sensing element detection under different motor rotating speeds is improved. For example, the motor rotation speed is in a linear relationship with the detection threshold of the radar sensing element, where the linear relationship may be a linear relationship or a curved relationship, etc.
Optionally, the washing stage of the washing machine includes a washing stage and a dehydrating stage, wherein a rotational speed of the dehydrating stage is greater than a rotational speed of the washing stage, and a detection threshold of the radar sensing element of the dehydrating stage is greater than a detection threshold of the radar sensing element of the washing stage. For example, the motor speed in the washing stage is greater than 50 rpm and less than 500 rpm, the detection threshold of the radar sensing element is 320mv, the motor speed in the spinning stage is greater than 500 rpm, and the detection threshold of the radar sensing element is 340mv.
And the detection threshold value of the radar sensing element is adaptively adjusted according to the rotating speed of the motor, and the larger the rotating speed of the motor is, the larger the detection threshold value of the adjusted radar sensing element is. With the increase of the rotation speed of the motor, noise interference generated by the motor operation on the radar sensing element is increased, the detection threshold value of the radar sensing element is correspondingly increased, the interference of the motor rotation on the radar sensing element can be reduced, and the detection accuracy of the radar sensing element is improved.
In some embodiments, adjusting the detection threshold of the radar sensing element based on the motor speed includes: when the rotating speed of the motor is smaller than or equal to the first rotating speed, adjusting the detection threshold value of the radar sensing element to be a first threshold value; and when the rotating speed of the motor is larger than the first rotating speed and smaller than or equal to the second rotating speed, adjusting the detection threshold value of the radar sensing element to be a second threshold value. Wherein the first threshold is not equal to the second threshold.
When the motor rotation speed is in the interval from 0 to the first rotation speed, the detection threshold values of the radar sensing elements are all first threshold values; when the motor rotation speed is in a range from the first rotation speed to the second rotation speed, the detection threshold values of the radar sensing elements are all second threshold values; optionally, the first rotation speed is 0, and when the first rotation speed is 0, the motor rotation speed is equal to the first rotation speed; the first rotational speed may also be greater than 0 revolutions per minute.
In some embodiments, when the motor rotation speed N is the first rotation speed 0 rpm, the detection threshold of the corresponding radar sensing element is the first threshold 280mv; when the motor rotation speed N is between 0 and 50 revolutions per minute, namely, 0 revolutions per minute < N is less than or equal to 50 revolutions per minute, the detection threshold value of the corresponding radar sensing element is a second threshold value 290mv. When the rotation speed of the motor is increased from the first rotation speed of 0 revolutions per minute to the second rotation speed of 50 revolutions per minute, the detection threshold value of the radar sensing element is adjusted from the first threshold value of 280mv to the second threshold value of 290mv.
Optionally, the aforementioned first rotation speed and second rotation speed are divided in a washing mode of the washing machine. The washing mode of the washing machine is classified into a soaking mode, a washing mode, a rinsing mode, and a dehydrating mode. The first rotation speed may be a maximum rotation speed in the soaking mode, and the second rotation speed may be a maximum rotation speed in the washing mode. And when the washing machine is in a washing mode, the detection threshold value of the radar sensing element is adjusted to be a second threshold value. The detection threshold values of the radar sensing elements are divided by different washing modes of the washing machine, so that the interference caused by the rotation of the washing machine into the radar sensing elements is reduced, the radar sensing elements can maintain stable detection threshold values within a certain time, and the detection accuracy of the radar sensing elements is improved.
For example, when the washing machine motor is in a non-working or soaking mode, the detection threshold value of the corresponding radar sensing element is 280mv, and when the washing machine enters a washing mode, the washing rotating speed of the washing machine motor is 50 revolutions per minute, and the detection threshold value of the radar sensing element is 290mv. When the washing machine is converted from the soaking mode to the washing mode, the detection threshold value of the radar sensing element is adjusted from the first threshold value to the second threshold value, so that the interference caused by the rotation of the motor on the radar sensing element in the washing mode of the washing machine can be reduced, and the detection accuracy of the radar sensing element is improved.
In some embodiments, the first threshold is less than the second threshold.
When the rotating speed of the motor is less than or equal to the first rotating speed, defining that the motor is in a first stage at the moment; when the rotating speed of the motor is larger than the first rotating speed and smaller than or equal to the second rotating speed, the motor is defined to be in the second stage, the rotating speed of the first stage is smaller than that of the second stage, the interference caused by the second stage on the radar sensing element is larger than that of the first stage, and the second threshold is larger than the first threshold, so that accuracy of detection results of the radar sensing element is improved.
In some embodiments, adjusting the detection threshold of the radar sensing element according to the motor speed further comprises: and when the rotating speed of the motor is larger than the second rotating speed and smaller than or equal to the third rotating speed, adjusting the detection threshold value of the radar sensing element to be a third threshold value.
Optionally, when the motor speed is greater than the second speed and less than or equal to the third speed, i.e., 50 rotations per minute < N.ltoreq.500 rotations per minute, the detection threshold of the radar sensing element is adjusted to a third threshold of 320mv.
Optionally, the first, second and third rotational speeds are divided in a washing mode of the washing machine. The washing mode of the washing machine is classified into a soaking mode, a washing mode, a rinsing mode, and a dehydrating mode. Further, the third rotational speed may be a maximum rotational speed in the rinsing mode. When the washing machine is in the rinsing mode, the detection threshold value of the radar sensing element is adjusted to be a third threshold value, and the detection accuracy of the radar sensing element is improved.
When the washing machine is operated to a rinsing mode, the rotating speed of the motor of the washing machine is increased by a third rotating speed from the second rotating speed, and the detection threshold value of the radar sensing element is adjusted to be a third threshold value from the second threshold value. In the rinsing mode of the washing machine, the anti-interference performance of the radar sensing element on the motor running at high speed is improved by improving the detection threshold value of the radar sensing element, and the noise interference of the motor running at high speed on the radar sensing element is reduced.
In some embodiments, the second threshold is less than the third threshold.
Similarly, when the rotation speed of the motor is greater than the second rotation speed and smaller than or equal to the third rotation speed, the motor is defined to be in the third stage at the moment, the rotation speed of the second stage is smaller than that of the third stage, the interference caused by the third stage on the radar sensing element is greater than that of the second stage, and the third threshold is greater than the second threshold, so that the accuracy of the detection result of the radar sensing element is improved.
In some embodiments, adjusting the detection threshold of the radar sensing element according to the motor speed further comprises: and when the rotating speed of the motor is larger than the third rotating speed and smaller than or equal to the fourth rotating speed, adjusting the detection threshold value of the radar sensing element to be a fourth threshold value.
Optionally, when the motor speed is greater than the third speed and less than or equal to the fourth speed, i.e., 500 rotations/min < N+.700 rotations/min, the detection threshold of the radar sensing element is adjusted to a fourth threshold of 340mv.
Optionally, the first, second, third and fourth rotational speeds are divided in a washing mode of the washing machine. The washing mode of the washing machine is classified into a soaking mode, a washing mode, a rinsing mode, and a dehydrating mode. Further, the fourth rotational speed may be a maximum rotational speed in the dehydration mode. When the washing machine is in the dewatering mode, the detection threshold value of the radar sensing element is adjusted to be a fourth threshold value, so that the detection accuracy of the radar sensing element is improved.
In some embodiments, the third threshold is less than the fourth threshold.
Similarly, when the rotation speed of the motor is greater than the third rotation speed and smaller than or equal to the fourth rotation speed, the motor is defined to be in a fourth stage at the moment, the rotation speed of the third stage is smaller than that of the fourth stage, the interference caused by the fourth stage on the radar sensing element is greater than that of the third stage, and the fourth threshold is greater than the third threshold, so that the accuracy of the detection result of the radar sensing element is improved.
Different washing machines are different in set motor rotation speed values under different modes of operation of the washing machines due to different washing articles of the washing machines, structures of the washing machines and the like. For example, the motor speed in the washing machine spin mode may be 500 rpm, 600 rpm, or 700 rpm. The control method provided by the embodiment of the disclosure considers that the interference caused by different rotation speeds of the dehydration mode on the radar sensing element is not greatly different, and the same threshold value, namely the fourth threshold value, can be adopted.
In some embodiments, the motor speed corresponds to a detection threshold of the radar sensing element as: the motor rotating speed N is 0 revolutions per minute, and the detection threshold value of the radar sensing element is 280mv; n is more than 0 revolutions per minute and less than or equal to 50 revolutions per minute, and the detection threshold value of the radar sensing element is 290mv; n is more than 50 revolutions per minute and less than or equal to 500 revolutions per minute, and the detection threshold value of the radar sensing element is 320mv; n is less than or equal to 500 revolutions per minute and less than or equal to 700 revolutions per minute, and the detection threshold value of the radar sensing element is 340mv.
When the motor of the washing machine is in a non-running or soaking mode, the rotating speed N of the motor is 0 revolutions per minute, and the detection threshold value of the radar sensing element can be 280mv; in the washing mode of the washing machine, the rotating speed range of the rotating speed N of the motor can be 0 revolutions per minute < N less than or equal to 50 revolutions per minute, for example, 10 revolutions per minute, 15 revolutions per minute, 25 revolutions per minute, 40 revolutions per minute or 50 revolutions per minute, and the detection threshold value of the radar sensing element can be 290mv; in the rinsing mode of the washing machine, the rotation speed range of the rotation speed N of the motor can be 50 revolutions per minute < N less than or equal to 500 revolutions per minute, for example, 60 revolutions per minute, 85 revolutions per minute, 125 revolutions per minute, 240 revolutions per minute, 300 revolutions per minute, 400 revolutions per minute or 500 revolutions per minute, and the detection threshold value of the radar sensing element can be 320mv; in the spin mode of the washing machine, the rotational speed of the motor N may be in a range of 500 rpm < N.ltoreq.700 rpm, for example 550 rpm, 600 rpm, 650 rpm or 700 rpm, and the detection threshold of the radar sensing element may be 340mv.
In some embodiments, the control method for a washing machine further includes: when the detection value of the radar sensing element reaches the detection threshold value, the brightness of the display element arranged on the shell is adjusted.
When the output signal of the radar sensing element reaches the detection threshold, it is indicated that there is a moving object in the monitoring range of the radar sensing element, and at this time, the brightness of the display element arranged on the casing is adjusted, for example, the brightness of the display element is increased, and when the user approaches the running washing machine, the current washing state of the washing machine is displayed on the display element of the washing machine. Wherein, the washing state of the washing machine includes: the operational phase of the washing machine, the remaining operational time of the washing machine, etc.
After the washing machine is started, the washing machine starts to wash objects, the motor of the washing machine starts to rotate, and the radar sensing element can adaptively adjust the detection threshold after receiving the running rotating speed of the motor. In the case that no moving object is present in the monitoring range of the radar sensing element, the brightness of the display element of the washing machine is dark or the display element is always off; when a mobile object appears in the monitoring range of the radar sensing element, the radar sensing element receives a detection value exceeding a detection threshold value and starts a control signal to the main control module of the washing machine, and the main control module of the washing machine can lighten the brightness of the display element after receiving the control signal, namely, adjust the display element from a low brightness to a high brightness or from a non-bright state to a high bright state. The current operation program of the washing machine, such as soaking, washing, rinsing or dehydrating, is displayed on the display element of the washing machine, and the current remaining operation time of the washing machine, that is, the time remaining from the end of the operation of the washing machine, is displayed. The display element may be a control panel of the washing machine.
According to the control method for the washing machine, the detection threshold value of the radar sensing element is adaptively adjusted according to the rotating speed of the motor of the washing machine, and when the radar sensing element receives the detection value exceeding the detection threshold value, the brightness of the display element arranged on the machine shell is lightened. Under the condition that no user approaches the washing machine, the display element of the washing machine is always turned off, so that energy conservation and environmental protection can be realized.
In some embodiments, the control method for a washing machine further includes: when the detection value of the radar sensing element reaches the detection threshold value, the washing machine voice broadcasts the current running state of the washing machine.
In some embodiments, when the detection value of the radar sensing element reaches the detection threshold, it is indicated that there is a moving object in the monitoring range of the radar sensing element, and at this time, by voice broadcasting the current running state of the washing machine, it can be achieved that the user approaches the running washing machine, and the washing machine feeds back the current washing state of the washing machine to the user. Wherein, the washing state of the washing machine includes: the operational phase of the washing machine, the remaining operational time of the washing machine, etc.
After the washing machine is started, the washing machine starts to wash objects, the motor of the washing machine starts to rotate, and the radar sensing element can adaptively adjust the detection threshold after receiving the running rotating speed of the motor. Under the condition that a mobile object appears in the monitoring range of the radar sensing element, the radar sensing element receives a detection value exceeding a detection threshold value and starts a control signal to a main control module of the washing machine, and the main control module of the washing machine can broadcast the current running stage of the washing machine and the current residual running time of the washing machine through voice after receiving the control signal, for example, the current running time is 12 minutes from the current washing running to the dewatering stage.
According to the control method for the washing machine, the detection threshold value of the radar sensing element is adaptively adjusted according to the rotating speed of the motor of the washing machine, and when the radar sensing element receives a detection value exceeding the detection threshold value, the current running state of the washing machine is voice broadcast. Under the condition that the user approaches the washing machine, the current running state of the washing machine is fed back to the user, so that the user can know the washing progress conveniently, and the user experience is improved.
The embodiment of the disclosure provides a direct current motor washing machine, comprising: a housing; the radar sensing element is arranged on the shell and is provided with a radar sensing element shielding cover for shielding noise; a display element provided to the casing and configured to increase brightness of the display element when the radar sensing element reaches a detection threshold; and the direct current power supply module is connected with an external alternating current power supply and is configured to convert the external alternating current into direct current and provide the direct current for a direct current motor of the washing machine.
In some embodiments, the direct current motor washing machine may be a washing machine employing a direct current brushless motor. When the motor operates, the rotating speed sensor arranged on the motor transmits the rotating speed information of the motor to the main control module of the washing machine, and the radar sensing element is configured to receive the rotating speed information of the motor sent by the main control module of the washing machine and self-adaptively adjust the detection threshold value through the rotating speed information of the motor.
The arrangement of the radar sensing element shielding cover reduces interference caused by signal leakage at the back of the radar sensing element, and improves the detection accuracy of the radar sensing element. As shown in fig. 3, the radar sensing element shield 23 includes a recess constituting a receiving groove for receiving the radar sensing element and a connection portion extending along a side wall of the recess, wherein the connection portion is provided with one or more connection holes, which may be internally threaded holes. Optionally, the groove includes a top surface 231, the radar sensing element includes an upper surface 221, and the top surface 231 of the groove is higher than the upper surface 221 of the Yu Leida sensing element, so that the signal emission angle of the radar sensing element can be reduced, the reflection of the signal at the outer drum of the washing machine can be avoided, and noise interference can be reduced, as shown in fig. 4.
According to the detection threshold value of the radar sensing element adjusted according to the motor rotation speed of the washing machine, the detection threshold value of the radar sensing element can be adjusted in a self-adaptive mode according to the motor rotation speed of the washing machine, on one hand, the detection threshold value can be prevented from being set too high, the sensitivity of the radar sensing element is reduced, on the other hand, the detection threshold value can be prevented from being set too low, the radar sensing element can be interfered by noise generated by the motor rotation speed of the washing machine, and the accuracy of the radar sensing element is reduced. The brightness of the display element is lightened when a user approaches the washing machine, and the display element is not lightened or displayed with low brightness when a user does not use the washing machine, so that the method has important significance for energy conservation and environmental protection.
An embodiment of the present disclosure provides a control apparatus for a washing machine, as shown in fig. 5, including:
a processor (processor) 100 and a memory (memory) 101, and may also include a communication interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via the bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the control method for the washing machine of the above-described embodiment.
Further, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 101 is a computer readable storage medium that can be used to store a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 performs functional applications as well as data processing by executing program instructions/modules stored in the memory 101, i.e., implements the control method for the washing machine in the above-described method embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides a direct current motor washing machine, which comprises the control device for the washing machine.
The embodiment of the disclosure provides a control device for a washing machine, which comprises a processor and a memory storing program instructions, wherein the processor executes the control method for the washing machine when running the program instructions.
The disclosed embodiments provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for a washing machine.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the control method for a washing machine as described above.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, comprising one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the foregoing methods of embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments of the present disclosure encompasses the full ambit of the claims, as well as all available equivalents of the claims. When used in the present application, although the terms "first," "second," etc. may be used in the present application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without changing the meaning of the description, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first element and the second element are both elements, but may not be the same element. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled person may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements may be merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, 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). 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. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/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.
Claims (5)
1. A control method for a washing machine, the washing machine comprising a cabinet and a radar sensing element disposed near a top of the cabinet, and the cabinet being provided with a radar sensing element shield for shielding noise, the shield being for preventing rear signal leakage of the radar sensing element, the radar sensing element shield comprising a recess constituting a receiving groove for receiving the radar sensing element and a connection portion extending along a sidewall of the recess, wherein the connection portion is provided with one or more connection holes, the recess comprising a top surface, the radar sensing element comprising an upper surface, the top surface of the recess being higher than the upper surface of the Yu Leida sensing element, a signal emission angle of the radar sensing element being reducible to avoid excessive emission angle, reflection of a signal at an outer tub of the washing machine, noise interference being reduced, the control method comprising:
acquiring the motor rotation speed of the washing machine;
adjusting a detection threshold of the radar sensing element according to the motor rotating speed, and adjusting the detection threshold of the radar sensing element to be a first threshold when the motor rotating speed is equal to a first rotating speed; when the motor rotating speed is greater than the first rotating speed and smaller than or equal to the second rotating speed, the detection threshold value of the radar sensing element is adjusted to be a second threshold value, the first threshold value is smaller than the second threshold value, and when the motor rotating speed is 0 revolutions per minute, the detection threshold value of the corresponding radar sensing element is 280mv of the first threshold value; when the rotating speed of the motor is greater than 0 rpm and less than or equal to 50 rpm, the detection threshold value of the corresponding radar sensing element is a second threshold value 290mv, so that the radar sensing element can keep a stable detection threshold value within a certain time; and when the detection value of the radar sensing element reaches the detection threshold value, adjusting the brightness of a display element arranged on the shell.
2. The control method according to claim 1, characterized in that the adjusting the detection threshold of the radar sensing element according to the motor rotation speed further comprises:
and when the rotating speed of the motor is larger than the second rotating speed and smaller than or equal to the third rotating speed, adjusting the detection threshold of the radar sensing element to be a third threshold.
3. The control method according to claim 2, wherein,
the second threshold is less than the third threshold.
4. A control device for a washing machine, comprising a processor and a memory storing program instructions, characterized in that the processor, when running the program instructions, performs the control method according to any one of claims 1 to 3.
5. A direct current motor washing machine, comprising:
a housing;
the radar sensing element is arranged on the shell and is provided with a radar sensing element shielding cover for shielding noise;
a display element provided to the casing and configured to increase brightness of the display element when the radar sensor element reaches a detection threshold;
the direct current power supply module is connected with an external alternating current power supply and is configured to convert the external alternating current into direct current and provide the direct current for a direct current motor of the washing machine; and, a step of, in the first embodiment,
the control device according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911136530.8A CN112899969B (en) | 2019-11-19 | 2019-11-19 | Control method and device for washing machine and direct current motor washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911136530.8A CN112899969B (en) | 2019-11-19 | 2019-11-19 | Control method and device for washing machine and direct current motor washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112899969A CN112899969A (en) | 2021-06-04 |
| CN112899969B true CN112899969B (en) | 2023-09-19 |
Family
ID=76103471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911136530.8A Active CN112899969B (en) | 2019-11-19 | 2019-11-19 | Control method and device for washing machine and direct current motor washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112899969B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002131424A (en) * | 2000-10-27 | 2002-05-09 | Omron Corp | Radar probing method and radar-type probing device using the same |
| CN105116396A (en) * | 2015-07-17 | 2015-12-02 | 西安空间无线电技术研究所 | Continuous wave radar Doppler echo detection method |
| CN106067244A (en) * | 2016-06-29 | 2016-11-02 | 中国科学院上海微系统与信息技术研究所 | A kind of sensor threshold value adaptive regulation method for perimeter detection system and system |
| CN107916526A (en) * | 2016-10-11 | 2018-04-17 | 宁波吉德家电科技有限公司 | A kind of intelligent monitor system of internet-of-thing washing machine |
| CN110042618A (en) * | 2019-04-24 | 2019-07-23 | 青岛海尔洗衣机有限公司 | Clothes treatment device control method and clothes treatment device based on distance detection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10302499B2 (en) * | 2014-10-24 | 2019-05-28 | Google Llc | Adaptive threshold manipulation for movement detecting sensors |
-
2019
- 2019-11-19 CN CN201911136530.8A patent/CN112899969B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002131424A (en) * | 2000-10-27 | 2002-05-09 | Omron Corp | Radar probing method and radar-type probing device using the same |
| CN105116396A (en) * | 2015-07-17 | 2015-12-02 | 西安空间无线电技术研究所 | Continuous wave radar Doppler echo detection method |
| CN106067244A (en) * | 2016-06-29 | 2016-11-02 | 中国科学院上海微系统与信息技术研究所 | A kind of sensor threshold value adaptive regulation method for perimeter detection system and system |
| CN107916526A (en) * | 2016-10-11 | 2018-04-17 | 宁波吉德家电科技有限公司 | A kind of intelligent monitor system of internet-of-thing washing machine |
| CN110042618A (en) * | 2019-04-24 | 2019-07-23 | 青岛海尔洗衣机有限公司 | Clothes treatment device control method and clothes treatment device based on distance detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112899969A (en) | 2021-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105155204A (en) | Washing machine clothing unbalanced state detection method in dehydration and washing machine | |
| CN108282117B (en) | Direct current fan starting method, control circuit and air conditioner | |
| CN112899969B (en) | Control method and device for washing machine and direct current motor washing machine | |
| EP1441055B1 (en) | Method for controlling dehydration speed of washing machine | |
| CN109510563B (en) | Control method and system for suppressing motor current harmonic and storage medium | |
| US8279952B2 (en) | Threshold adjustable transmission envelope detector | |
| KR101391004B1 (en) | Method and Apparatus for Motor Control | |
| CN110699921B (en) | Active balance control system of drum washing machine and balancing method thereof | |
| CN113789638A (en) | Washing machine control method and device and washing machine | |
| CN108486825B (en) | Washing machine control method and device | |
| CN105262402B (en) | Brshless DC motor torque ripple detecting system | |
| WO2024000968A1 (en) | Clothing treatment device, and water pump control method and water pump control device therefor | |
| CN100413203C (en) | Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor | |
| US20100013423A1 (en) | Control circuitry of ceiling fan for controlling rotation direction and speed | |
| CN109884334B (en) | Method and system for measuring rotor speed of shield motor in non-working state | |
| CN110857497A (en) | Dehydration control method and device and clothes treatment device | |
| US20240068146A1 (en) | Washing machine and method of controlling the same | |
| CN110904615B (en) | Brushless direct current motor control method and system for washing machine | |
| CN112709045A (en) | Control method and device of washing machine and washing machine | |
| US7741797B2 (en) | Method for managing transitions in a three-phase BLDC motor and corresponding device | |
| CN113507244B (en) | Motor control method and device and electronic equipment | |
| CN209842629U (en) | Low-power consumption detection IC card device | |
| CN110972221B (en) | Communication signal processing method and device and mobile terminal | |
| CN207218575U (en) | A kind of water pump Brushless Motors Drive System | |
| CN116241918A (en) | Method and device for avoiding resonance of range hood and range hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |