Washing apparatus, control method thereof, and computer-readable storage medium

Abstract

The present application relates to the technical field of smart home, and particularly provides a washing equipment, a control method thereof and a computer readable storage medium, aiming at solving the problem of safety accidents caused by the existing washing equipment in the process of storing washing water. To this end, the control method comprises the following steps: acquiring a water level frequency change amount of the washing equipment in the case that a washing tub of the washing equipment is in a stationary state; judging whether the absolute value of the water level frequency change amount is greater than a preset change amount; selectively causing the washing equipment to perform a drainage operation according to the judgment result, so as to drain the washing water stored in the washing tub, avoiding safety accidents such as water leakage and water overflow, improving the safety performance of the washing equipment, and further improving the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart home, and particularly provides a control method for a washing device, a computer readable storage medium and the washing device. BACKGROUND

[0002] With the improvement of people's living standards, the washing device such as washing machine and washing-drying integrated machine has been very popular. Taking the washing machine as an example, the washing machine generally washes clothes by water washing, and the stains on the clothes are washed clean in the process of water washing accompanied by mechanical rotation. Generally, after the user puts the clothes into the washing barrel, the washing machine can be automatically operated until the end by pressing the start key, and the water in the washing machine is completely drained.

[0003] However, in the actual operation process, the washing machine may have running failure or the user selects the water retention function or other special conditions, so that the water in the washing machine is not automatically drained and remains in the washing barrel. The washing water stored in the washing barrel for a long time is easy to cause safety accidents such as water leakage and water overflow, which is not conducive to the user's use experience.

[0004] Therefore, there is a need for a new control method for a washing device, a computer readable storage medium and a washing device to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, i.e. to solve the problem of safety accidents caused by the existing washing device in the process of storing washing water.

[0006] In a first aspect, the present application provides a control method for a washing device, the control method comprising the following steps: acquiring a water level frequency change amount of the washing device in a case that a washing barrel of the washing device is in a stationary state; judging whether an absolute value of the water level frequency change amount is greater than a preset change amount; selectively causing the washing device to perform a drainage operation according to a judgment result.

[0007] In the preferred technical solution of the above control method, the step of "selectively causing the washing device to perform a drainage operation according to a judgment result" specifically comprises: if the absolute value of the water level frequency change amount is greater than the preset change amount, counting a number of times that the absolute value of the water level frequency change amount is greater than the preset change amount; judging whether the number of times is greater than a preset number of times; selectively causing the washing device to perform a drainage operation based on the judgment result.

[0008] In the preferred technical solution of the above control method, the step of "selectively causing the washing device to perform a drainage operation based on the judgment result" specifically comprises: if the number of times is greater than the preset number of times, causing the washing device to perform a drainage operation.

[0009] In the preferred technical solution of the control method, the step of causing the washing device to perform the draining operation specifically comprises causing the washing device to drain to an empty tub water level.

[0010] In the preferred technical solution of the control method, the control method further comprises: in the case where it is determined that the number of times is greater than the preset number of times, sending a prompt information to prompt the user that the washing device is malfunctioning.

[0011] In the preferred technical solution of the control method, the control method further comprises: if the absolute value of the water level frequency change amount is less than or equal to the preset change amount, causing the washing device not to perform the draining operation; and / or if the number of times is less than or equal to the preset number of times, causing the washing device not to perform the draining operation.

[0012] In the preferred technical solution of the control method, the control method further comprises: obtaining a water level frequency change rate of the washing device; determining a rate type to which the water level frequency change rate belongs; if the water level frequency change rate belongs to a first rate type, determining the preset number of times as m times; if the water level frequency change rate belongs to a second rate type, determining the preset number of times as n times; wherein the m is less than the n, and the m and the n are both positive integers.

[0013] In the preferred technical solution of the control method, the step of obtaining the water level frequency change amount of the washing device specifically comprises: detecting a water level frequency value in the washing device according to a preset time interval; calculating a difference value of adjacent two detected water level frequency values, and taking the difference value as the water level frequency change amount.

[0014] In a second aspect, the present application provides a computer readable storage medium, wherein a plurality of program codes are stored, the program codes being adapted to be loaded and run by a processor to execute the control method of any one of the above preferred technical solutions.

[0015] In a third aspect, the present application provides a washing device, comprising: a processor; a memory for storing a plurality of program codes; the program codes being adapted to be loaded and run by the processor to execute the control method of any one of the above preferred technical solutions.

[0016] In the preferred technical solution of the control method of the present application, in the case where the washing tub of the washing machine is in a stationary state, the water level frequency change amount of the washing machine is obtained; it is determined whether the absolute value of the water level frequency change amount is greater than a preset change amount; and according to the determination result, the washing machine is selectively caused to perform the draining operation.

[0017] Compared with the prior art in which only washing water is stored in the washing tub, the application can accurately detect the water level frequency variation of the washing machine when the washing tub is in a stationary state, i.e., when the washing machine is in a power-off state, a power-on alarm state, a pause state or a water retention state, and the washing tub is in a stationary and non-rotating state, and can accurately determine whether the water level in the washing machine has changed, whether the washing machine has a water leakage, a water level rise or other abnormal conditions, according to the determination result of whether the absolute value of the water level frequency variation of the washing machine is greater than a preset variation, and based on this, selectively causes the washing machine to perform a drainage operation, thereby draining the washing water stored in the washing tub, avoiding safety accidents such as water leakage and water overflow, improving the safety performance of the washing machine, and further improving the user experience.

[0018] Further, if the absolute value of the water level frequency variation is greater than the preset variation, it indicates that the water level in the washing tub has changed significantly, which may be caused by water leakage of the washing machine or by water injection of the washing machine, and the number of times when the absolute value of the water level frequency variation is greater than the preset variation is counted, and according to the determination result of whether the counted number of times is greater than a preset number of times, it can be accurately determined whether the water level in the washing machine is continuously changing or is changing accidentally, and based on this, the cause of the change in the water level can be accurately determined, so that the washing machine is selectively caused to perform a drainage operation, eliminating safety hazards and avoiding misjudgment.

[0019] Further, if the number of times is greater than the preset number of times, it indicates that the absolute value of the water level frequency variation has been detected multiple times, and the water level of the washing machine is continuously changing, which may be caused by water leakage of the washing machine or by continuous water injection into the washing tub due to a faulty water inlet valve, and regardless of the cause, the washing machine is caused to perform a drainage operation, thereby avoiding safety accidents such as water leakage and water overflow.

[0020] Further, when the number of times is greater than the preset number of times, i.e., when the water level of the washing machine changes significantly, a prompt message is sent to timely remind the user that the washing machine has a fault, so that the user can timely know and handle the fault, further improving the user experience.

[0021] Further, if the number of times is less than or equal to the preset number of times, it indicates that the water level of the washing machine is only occasionally detected to change, which may be caused by manual water injection of the washing machine by the user or by water absorption of the clothes, and regardless of the cause, the washing machine does not need to perform a drainage operation. BRIEF DESCRIPTION OF DRAWINGS

[0022] The control method of the application will be described below with reference to the accompanying drawings and in conjunction with a washing machine, and in the drawings:

[0023] Figure 1 is a flow chart of the control method of the present application;

[0024] Figure 2 is a flow chart of the control method of the present application for selectively performing the draining operation Figure 1 ;

[0025] Figure 3 is a flow chart of the control method of the present application for determining the preset number of times

[0026] Figure 4 is a flow chart of the control method of the present application for selectively performing the draining operation Figure 2 ;

[0027] Figure 5 is a logic diagram of the control method of the present application. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the embodiments are only used to explain the technical principles of the present application, and are not intended to limit the scope of protection of the present application. For example, although the present application is described in combination with a washing machine, the technical solution of the present application is not limited thereto, and the control method can obviously be applied to a washer-dryer, a steam washing device or other washing devices, and such changes do not deviate from the principles and scope of the present application. Among them, the washing machine can be a pulsator washing machine or a drum washing machine.

[0029] It should be noted that in the description of the present application, the terms "first", "second", "third" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance.

[0030] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "provision", "connection" should be understood broadly, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Based on the technical problem proposed in the background art, the present application provides a control method for a washing machine, which aims to accurately detect the water level frequency change amount of the washing machine when the washing tub of the washing machine is in a stationary state, i.e. the washing machine is in a power-off state, a power-on alarm state, a pause state or a water retention state, etc., and the washing tub is in a stationary and non-rotating state, and accurately determine whether the water level in the washing machine has changed, whether abnormal conditions such as washing machine water leakage, water level rise, etc. occur, according to the judgment result of whether the absolute value of the water level frequency change amount of the washing machine is greater than a preset change amount, and selectively make the washing machine perform a drainage operation based on this, so as to drain the washing water stored in the washing tub, thereby avoiding safety accidents such as water leakage and water overflow, improving the safety performance of the washing machine, and further improving the user experience.

[0032] Firstly referring to Figure 1 , the control method of the present application is described. Among them, Figure 1 is the flow chart of the control method of the present application.

[0033] As Figure 1 shown, the control method of the present application comprises the following steps:

[0034] S100, in the case that the washing tub of the washing machine is in a stationary state, obtaining the water level frequency change amount of the washing machine;

[0035] S200, judging whether the absolute value of the water level frequency change amount is greater than a preset change amount;

[0036] S300, selectively making the washing machine perform a drainage operation according to the judgment result.

[0037] In step S100, in the case that the washing tub of the washing machine is in a stationary state, the washing machine can be in a power-off state, a power-on alarm state, a pause state or a water retention state, etc., and the washing tub is in a stationary and non-rotating state. Although "tub" is used, it is not limited to a pulsator washing machine, but also can be a drum washing machine.

[0038] Further, in the above state, the water level frequency value in the washing machine is detected at a preset time interval; the difference between the water level frequency values detected at adjacent two times is calculated, and the difference is taken as the water level frequency change amount.

[0039] For example, the water level frequency value is detected by the water level sensor arranged on the washing machine every 60s, and three water level frequency values are detected, for example, the first water level frequency value F1, the second water level frequency value F2, and the third water level frequency value F3, and the difference ΔF is the difference between the current detected water level frequency value and the last detected water level frequency value, for example, ΔF=F2-F1; or the difference ΔF is the difference between the last detected water level frequency value and the current detected water level frequency value, that is, ΔF=F1-F2. The specific calculation method of the difference can be determined by the person skilled in the art according to the use requirement, and the water level may increase, decrease or remain unchanged, so the difference may be positive, zero or negative. Of course, the preset time interval is not limited to the above-mentioned time, and can also be 40s, 50s, 70s or other time.

[0040] For example, the first water level frequency value F1 is 40000Hz, the second water level frequency value F2 is 40120Hz, and the third water level frequency value F3 is 40245Hz, then ΔF1=40120Hz-40000Hz=120Hz, and ΔF2=40245Hz-40120Hz=125Hz.

[0041] For example, the first water level frequency value F1 is 40000Hz, the second water level frequency value F2 is 39880Hz, and the third water level frequency value F3 is 39755Hz, then ΔF1=39880Hz-40000Hz=-120Hz, and ΔF2=39755Hz-39880Hz=-125Hz.

[0042] For example, the first water level frequency value F1 is 40000Hz, the second water level frequency value F2 is 39950Hz, then ΔF1=39950Hz-40000Hz=-50Hz; or the second water level frequency value F2 is 40050Hz, then ΔF1=40050Hz-40000Hz=50Hz.

[0043] In step S200, since the water level frequency change amount can be positive, zero or negative, the absolute value of the water level frequency change amount is compared with the preset change amount, so that the accuracy of the judgment is improved.

[0044] It should be noted that the above-mentioned water level frequency value and water level frequency change amount are exemplary and not limited, and the person skilled in the art can calculate the water level frequency change amount according to the actually detected water level frequency value.

[0045] Hereinafter, the control method for selectively performing the draining operation of the present application will be described with reference to the accompanying drawings. Figures 2 to 4 The control method for selectively performing the draining operation of the present application will be described. Among them, Figure 2 is the flowchart of the control method for selectively performing the draining operation of the present applicationFigure 1 ; Figure 3 is a flow chart of the control method for determining the preset number of times of the present application; Figure 4 is a flow chart of the control method for selectively performing the draining operation of the present application Figure 2 .

[0046] As Figure 2 shown, the step of "selectively causing the washing machine to perform the draining operation according to the judgment result" in step S300 specifically includes:

[0047] S311, if the absolute value of the water level frequency variation is less than or equal to the preset variation, causing the washing machine not to perform the draining operation;

[0048] S312, if the absolute value of the water level frequency variation is greater than the preset variation, counting the number of times that the absolute value of the water level frequency variation is greater than the preset variation;

[0049] S313, judging whether the number of times is greater than the preset number of times;

[0050] S314, selectively causing the washing machine to perform the draining operation based on the judgment result.

[0051] In step S311, if the absolute value of the water level frequency variation is less than or equal to the preset variation, for example, the preset variation is 100 Hz, and the calculated water level frequency variation is 50 Hz or -50 Hz, the absolute value of which is 50 Hz, which is less than the preset variation, indicating that the water level in the washing tub has not changed significantly, i.e., it can be considered that the washing machine has not appeared phenomena such as water leakage, water injection, etc., everything is normal, so there is no need to cause the washing machine to perform the draining operation, and return to step S100 until the absolute value of the water level frequency variation is greater than the preset variation.

[0052] In step S312, if the absolute value of the water level frequency variation is greater than the preset variation, for example, the preset variation is 100 Hz, and the calculated water level frequency variation is 120 Hz or -120 Hz, the absolute value of which is 120 Hz, which is greater than the preset variation, indicating that the water level in the washing tub has changed significantly, which may be due to water leakage of the washing machine, or may be due to the water level rising due to the washing machine being injected with water, then the number of times that the absolute value of the water level frequency variation is greater than the preset variation is counted, so as to judge whether to cause the washing machine to perform the draining operation according to the counted number of times.

[0053] It should be noted that the above-mentioned preset variation and water level frequency variation are exemplary and not limiting, and those skilled in the art can flexibly adjust and set the preset variation according to the actual situation of the washing machine, and calculate the water level frequency variation according to the actual detected water level frequency value.

[0054] It should be noted that in the above process, step S311 and step S312 have no sequence, are parallel, and are only related to the judgment result of whether the absolute value of the water level frequency change amount is greater than the preset change amount. According to different judgment results, the corresponding steps can be executed.

[0055] As shown in FIG. 13, in step S313, the preset number of times is determined by the following method: Figure 3

[0056] S321, obtaining a water level frequency change rate of the washing machine;

[0057] S322, judging a rate type to which the water level frequency change rate belongs;

[0058] S323, if the water level frequency change rate belongs to a first rate type, determining the preset number of times as m times;

[0059] S324, if the water level frequency change rate belongs to a second rate type, determining the preset number of times as n times;

[0060] Wherein, m is less than n, and m and n are positive integers.

[0061] Wherein, the first rate type is a uniform change rate; the second rate type is a non-uniform change rate, for example, an accelerated change rate, a decelerated change rate, an irregular change rate, etc.

[0062] In step S321, the water level frequency change rate U is calculated by the water level frequency change amount obtained in step S100 and the preset time interval. For example, the preset time interval is 60s, △F1 is 120Hz, and △F2 is 125Hz, then U1=120Hz / 60s=2Hz / s, and U2=125Hz / 60s=2.08Hz / s.

[0063] Or, the preset time interval is 60s, △F1 is 120Hz, and △F2 is 150Hz, then U1=120Hz / 60s=2Hz / s, and U2=150Hz / 60s=2.5Hz / s.

[0064] In step S322, the difference between U1 and U2 calculated in step S321 is calculated, and it is judged whether the difference is within a preset deviation range. For example, the preset deviation range is ±0.1Hz / s, the calculated difference between U1 and U2 is 0.08Hz / s, which is within the preset deviation range, so it can be determined that the water level frequency change rate is a uniform change rate; for another example, the calculated difference between U1 and U2 is 0.5Hz / s, which is not within the preset deviation range, so it can be determined that the water level frequency change rate is a non-uniform change rate, preferably an accelerated change rate.

[0065] ​In step S323, if the water level frequency change rate belongs to the first rate type, that is, uniform change, it means that the washing machine may be leaking water at a uniform speed or the water inlet valve may be malfunctioning and filling the washing tub with water at a uniform speed. In this case, the preset number of times is set to m times, such as 2 times, 3 times, or other numbers, so as to determine in a timely and accurate manner whether the washing machine needs to perform a drainage operation.

[0066] In step S324, if the water level frequency change rate belongs to the second rate type, that is, non-uniform change, it means that the water level may be reduced due to the clothes absorbing water, or the user may be manually pouring water into the washing tub. In this case, the preset number of times is set to n times, such as 4 times, 5 times, or other times greater than m times. This can accurately determine whether the washing machine needs to perform a drainage operation and avoid misjudgment.

[0067] It should be noted that in the above process, steps S323 and S324 are not sequential but parallel, and are only related to the judgment result of the rate type to which the water level frequency change rate belongs. The corresponding steps can be executed according to different judgment results.

[0068] like Figure 4 As shown, step S314, "selectively causing the washing machine to perform a drainage operation based on the judgment result," specifically includes:

[0069] S331. If the number of times exceeds the preset number, the washing machine will perform a drainage operation.

[0070] S332. If the number of times is less than or equal to the preset number of times, then the washing machine will not perform the drainage operation.

[0071] In step S331, if the number of times is greater than the preset number, for example, if the preset number is 3 times and the counted number is 4 times, it means that the absolute value of the water level frequency change has been detected 4 times, which is greater than the preset change amount, and the water level of the washing machine is continuously changing. If the calculated water level frequency change amount is a positive number such as 120Hz or 125Hz, it means that the washing machine is continuously leaking water, causing the water level to drop. If the calculated water level frequency change amount is a negative number such as -120Hz or -125Hz, it may be due to a malfunction of the inlet valve, which is continuously adding water to the washing tub, causing the water level to rise. Regardless of the reason, the washing machine needs to perform a drainage operation. Preferably, the washing machine is drained to the empty tub level to avoid safety accidents such as leakage and overflow.

[0072] Furthermore, if the number of detections exceeds the preset number, a prompt message can be sent to promptly remind the user that the washing machine has malfunctioned, allowing the user to be aware of and address the problem in a timely manner, thus further improving the user experience.

[0073] Preferably, the washing machine can be controlled to send prompt messages to user devices such as mobile phones, tablets, and smart bracelets; or, the washing machine's voice module can be controlled to send prompt messages by voice; or, a smart speaker or other voice device connected to the washing machine can be controlled to send prompt messages by voice; or, the washing machine can be controlled to display the prompt messages on its display component, so that the display component sends the prompt messages by voice or text.

[0074] In step S332, if the number of times is less than or equal to the preset number, for example, if the preset number is 3 times and the counted number is 1 time, which is less than the preset number, it means that it was just an occasional occurrence that the absolute value of the water level frequency change was greater than the preset change. If the calculated water level frequency change is a positive number such as 50Hz, it may be that the clothes absorb water, causing the water level to drop. If the calculated water level frequency change is a negative number such as -50Hz, it may be that the user manually poured water into the washing tub or something fell into the washing tub, causing the water level to rise. In either case, there is no need to make the washing machine perform a drain operation, and the process returns to step S100 until the counted number reaches the preset number.

[0075] It should be noted that in the above process, steps S331 and S332 are not sequential but parallel, and are only related to the judgment result of whether the number of counts is greater than the preset number. The corresponding steps can be executed according to different judgment results.

[0076] The following reference Figure 5 This paper describes one possible control flow of the present invention. Figure 5 This is a logic diagram of the control method of the present invention.

[0077] like Figure 5 As shown, a possible complete flow of the control method of the present invention is as follows:

[0078] S401. When the washing machine is in standby mode and the washing tub is stationary, obtain the water level frequency change ΔF of the washing machine.

[0079] S402. Determine whether |△F|>100Hz is true. If yes, proceed to step S403; if no, proceed to step S407.

[0080] S403, Count the number of times |△F| > 100Hz (N);

[0081] S404. Determine if N > 3 is true. If yes, proceed to step S405; otherwise, proceed to step S407.

[0082] S405, Instruct the washing machine to perform a draining operation;

[0083] S406. Sending a notification message can promptly remind the user that the washing machine has malfunctioned;

[0084] S407. Prevent the washing machine from performing the drainage operation; and return to step S401 until the absolute value of the water level frequency change is greater than 100Hz, or the number of times counted reaches 3.

[0085] It should be noted that the above embodiments are merely preferred embodiments of the present invention, used only to illustrate the principle of the method of the present invention, and are not intended to limit the scope of protection of the present invention. In practical applications, those skilled in the art can allocate the above functions to different steps as needed, that is, further decompose or combine the steps in the embodiments of the present invention. For example, the steps in the above embodiments can be combined into one step, or further divided into multiple sub-steps to complete all or part of the functions described above. The names of the steps involved in the embodiments of the present invention are merely for distinguishing the various steps and are not considered as limitations on the present invention.

[0086] In addition, the present invention provides a computer-readable storage medium storing a plurality of program codes, which are loaded by a processor and executed by any of the control methods described above.

[0087] In addition, the present invention also provides a washing machine, which includes a processor and a memory, the memory being used to store multiple program codes; wherein the program codes are loaded by the processor and executed by any of the control methods described above.

[0088] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A control method for a washing apparatus, characterized by, The control method comprises the following steps: In the case that the washing tub of the washing device is in a stationary state, obtaining a water level frequency variation of the washing device; Determining whether the absolute value of the water level frequency variation is greater than a preset variation; According to the determination result, selectively causing the washing device to perform a draining operation; The step of "according to the determination result, selectively causing the washing device to perform a draining operation" specifically comprises: If the absolute value of the water level frequency variation is greater than the preset variation, counting the number of times that the absolute value of the water level frequency variation is greater than the preset variation; Determining whether the number of times is greater than a preset number of times; Based on the determination result, selectively causing the washing device to perform a draining operation; The determination method of the preset number of times comprises: Obtaining a water level frequency variation rate of the washing device; Determining the rate type to which the water level frequency variation rate belongs; If the water level frequency variation rate belongs to a first rate type, determining the preset number of times as m times; If the water level frequency variation rate belongs to a second rate type, determining the preset number of times as n times; Wherein, the m is less than the n, and the m and the n are both positive integers.

2. The control method according to claim 1, characterized by, The step of "based on the determination result, selectively causing the washing device to perform a draining operation" specifically comprises: If the number of times is greater than the preset number of times, causing the washing device to perform a draining operation.

3. The control method according to claim 2, characterized by, The step of "causing the washing device to perform a draining operation" specifically comprises: Causing the washing device to drain to an empty tub water level.

4. The control method according to claim 2 or 3, further comprising: In the case that it is determined that the number of times is greater than the preset number of times, sending a prompt information to prompt the user that the washing device is malfunctioning.

5. The control method according to claim 1, characterized by, The control method further comprises: If the absolute value of the water level frequency variation is less than or equal to the preset variation, causing the washing device not to perform a draining operation; and / or If the number of times is less than or equal to the preset number of times, causing the washing device not to perform a draining operation.

6. The control method according to claim 1, characterized by, The step of "obtaining a water level frequency variation of the washing device" specifically comprises: Detecting the water level frequency value in the washing device according to a preset time interval; Calculating the difference value of the water level frequency values detected at adjacent two times, and taking the difference value as the water level frequency variation.

7. A computer readable storage medium having stored therein a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by the processor to execute the control method of any one of claims 1 to 6.

8. A washing device, comprising: A processor; A memory for storing a plurality of program codes; Characterized in that the program code is adapted to be loaded and run by the processor to execute the control method of any one of claims 1 to 6.

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