Clothes treatment equipment, foam detection method and device thereof and storage medium

Abstract

The invention discloses clothes treatment equipment, a foam detection method and device thereof and a storage medium. The clothes processing equipment comprises a washing barrel and a drying tunnel, the washing barrel is communicated with the drying tunnel, a first metal probe and a second metal probe are arranged in the drying tunnel at intervals, and the method comprises the steps that circuit conduction state data between the first metal probe and the second metal probe are acquired; according to the circuit conduction state data, whether foam overflows from the washing barrel or not is determined. By adopting the method provided by the invention, the foam detection accuracy can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of clothing processing equipment, and in particular to a clothing processing equipment and a foam detection method, device and storage medium thereof. Background Art

[0002] A clothes treatment device is a device that can be used to wash clothes. Before using the clothes treatment device to wash clothes, the user will put detergent into the washing tub of the clothes treatment device so that the clothes treatment device can dissolve and remove the stains left on the clothes during the washing process. When the user puts in a lot of detergent, the clothes treatment device will produce a lot of foam during the washing process. If these foams enter the drying channel, they will cause the circuit in the drying channel to short-circuit, such as the heating device circuit and the fan circuit.

[0003] Typically, a controller of a laundry processing device is electrically connected to a water level sensor, and water level fluctuation frequency data (the horizontal axis is time, the vertical axis is water level value) detected by the water level sensor is used to determine whether the laundry processing device generates foam during the washing process.

[0004] However, the water level fluctuation frequency data will be affected by the aging of the components in the water level sensor, and the water level fluctuation frequency data detected by the aged water level sensor will have errors with the actual data. When the preset water level threshold remains unchanged, the comparison result of the water level fluctuation frequency data detected by the aged water level sensor and the preset water level threshold is used as the basis for judging whether foam is generated in the washing tub, the accuracy is low. Summary of the invention

[0005] In view of this, the embodiments of the present application provide a clothing processing device and a foam detection method, device and storage medium thereof, aiming to solve the technical problem of low foam detection accuracy in the related art.

[0006] In a first aspect, an embodiment of the present application provides a foam detection method for a clothing processing device, wherein the clothing processing device includes a washing tub and a drying tunnel, wherein the washing tub is connected to the drying tunnel, and a first metal probe and a second metal probe are arranged at intervals in the drying tunnel. The method includes: obtaining circuit conduction status data between the first metal probe and the second metal probe; and determining whether there is foam overflow in the washing tub based on the circuit conduction status data.

[0007] In the above solution, the step of obtaining the circuit conduction status data between the first metal probe and the second metal probe includes:

[0008] Acquiring a voltage value between terminals on the first metal probe and the second metal probe that are away from each other;

[0009] If it is determined that the voltage value exists, the circuit conduction state data between the first metal probe and the second metal probe is determined to include a conduction state and the voltage value in the conduction state is the voltage value;

[0010] If it is determined that the voltage value does not exist, the circuit conduction state data between the first metal probe and the second metal probe is determined to include a non-conduction state.

[0011] In the above solution, determining whether there is foam overflow in the washing tub according to the circuit conduction state data includes:

[0012] Determining whether there is foam overflow in the washing tub according to the circuit conduction state data and the washing mode of the washing tub.

[0013] In the above solution, determining whether there is foam overflow in the washing tub according to the circuit conduction state data and the washing mode of the washing tub includes:

[0014] Based on the circuit conduction state data, determining whether the state between the first metal probe and the second metal probe is a conduction state and the voltage value in the conduction state;

[0015] If it is determined that the state between the first metal probe and the second metal probe is a conduction state and the voltage value in the conduction state is greater than or equal to the voltage threshold corresponding to the washing mode, the duration during which the voltage value is greater than or equal to the voltage threshold corresponding to the washing mode is obtained;

[0016] Determining whether there is foam overflow in the washing tub according to the washing mode of the washing tub and the duration.

[0017] In the above solution, determining whether there is foam overflow in the washing tub according to the washing mode of the washing tub and the duration includes:

[0018] If it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to a preset first duration threshold, it is determined that there is foam overflow in the washing tub;

[0019] If it is determined that the washing mode of the washing tub is the second washing mode and the duration is greater than or equal to a preset second duration threshold, it is determined that there is foam overflow in the washing tub;

[0020] Wherein, the rotation speed of the washing tub in the first washing mode is greater than the rotation speed of the washing tub in the second washing mode, and the first duration threshold is less than the second duration threshold.

[0021] In the above solution, if it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to a preset first duration threshold, after it is determined that there is foam overflow in the washing tub, the method further includes:

[0022] Controlling the washing tub to switch from the first washing mode to the second washing mode.

[0023] In the above solution, if it is determined that the washing mode of the washing tub is the second washing mode and the duration is less than the second duration threshold, the method further includes:

[0024] Determining that there is no foam overflow in the washing tub;

[0025] Controlling the washing tub to operate according to the second washing mode to wash the clothes in the washing tub.

[0026] In the above solution, the foam detection method of the laundry treatment device further includes:

[0027] Obtaining a device operation instruction; wherein, the device operation instruction includes an identification code of the washing mode;

[0028] Based on a preset mapping relationship and the identification code of the washing mode, determining the washing mode of the washing tub; wherein, the mapping relationship stores the corresponding relationship between the identification code of the washing mode and the washing mode.

[0029] In a second aspect, an embodiment of the present application further provides a foam detection device for a laundry treatment device. The laundry treatment device includes a washing tub and a drying channel, the washing tub is communicated with the drying channel, and a first metal probe and a second metal probe are spaced apart in the drying channel. The device includes:

[0030] A conduction data acquisition module, configured to acquire circuit conduction state data between the first metal probe and the second metal probe;

[0031] A foam overflow determination module, configured to determine whether there is foam overflow in the washing tub according to the circuit conduction state data.

[0032] In a third aspect, an embodiment of the present application further provides a laundry treatment device. The laundry treatment device includes a washing tub and a drying channel, the washing tub is communicated with the drying channel, and a first metal probe and a second metal probe are spaced apart in the drying channel. The laundry treatment device includes: a processor and a memory for storing a computer program that can run on the processor. Wherein, the processor is configured to execute the steps of the method as described in the first aspect when running the computer program.

[0033] Fourthly, an embodiment of the present application further provides a computer storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0034] An embodiment of the present application provides a laundry treatment device, a foam detection method, a device and a storage medium thereof. By obtaining the circuit conduction state data between a first metal probe and a second metal probe; and determining whether there is foam overflow in the washing tub according to the circuit conduction state data. The circuit conduction state data is directly related to whether an effective current loop is formed between the first metal probe and the second metal probe. The first metal probe and the second metal probe are arranged at intervals. In the case where there is no foam connection (i.e., no foam overflows into the drying channel), the first metal probe and the second metal probe cannot form a current loop; an effective current loop will be formed only when there is foam connection. In this foam detection method of the present application, since the circuit conduction state data is the state data related to circuit conduction and is less affected by component aging, it is possible to more accurately determine whether foam is generated in the washing tub. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic flowchart of executing the foam detection method of the laundry treatment device in an embodiment of the present application;

[0036] Figure 2 is a schematic structural diagram of the laundry treatment device in an embodiment of the present application;

[0037] Figure 3 is a schematic flowchart of executing the foam detection method of the laundry treatment device in another embodiment of the present application;

[0038] Figure 4 is a schematic flowchart of executing the foam detection method of the laundry treatment device in still another embodiment of the present application;

[0039] Figure 5 is a schematic flowchart of executing the foam detection method of the laundry treatment device in another embodiment of the present application; Figure 6 is a schematic flowchart of executing the foam detection method of the laundry treatment device in an application embodiment of the present application;

[0040] Figure 7 is a schematic structural diagram of the foam detection device of the laundry treatment device in an embodiment of the present application;

[0041] Figure 8 is a schematic structural diagram of the laundry treatment device in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The present application will be further described in detail below with reference to the drawings and embodiments.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0044] To clearly understand the technical solution of this application, the solutions of the related technologies will be introduced in detail first.

[0045] In the related art, the controller of the laundry treatment device is electrically connected to the water level sensor. Based on the water level fluctuation frequency data detected by the water level sensor (with the abscissa being time and the ordinate being the water level value), it is determined whether foam is generated during the washing process of the laundry treatment device. However, the water level fluctuation frequency data is affected by the aging of the components in the water level sensor. The water level fluctuation frequency data detected by the aged water level sensor will have an error compared with the real data. When the preset water level threshold remains unchanged, the comparison result based on the water level fluctuation frequency data detected by the aged water level sensor and the preset water level threshold is used as the basis for judging whether foam is generated in the washing tub, and the accuracy is relatively low.

[0046] Taking a specific example to illustrate that the aging of the water level sensor leads to incorrect detection results. For example, under the condition that the operating conditions remain unchanged, when the components in the water level sensor are normal, the measured water level fluctuation frequency data shows that within the time period t1 - t2, the water level values at each moment fluctuate around a1, and a1 is greater than the preset water level value b, it is determined that foam is generated in the washing tub.

[0047] When the components in the water level sensor are aged, the measured water level fluctuation frequency data shows that within the time period t1 - t2, the water level values at each moment fluctuate around a2, and a2 is greater than the preset water level value b, it is determined that foam is generated in the washing tub.

[0048] Here, a2 may be less than or greater than a1, and the comparison result with the preset water level value b has changed. Therefore, the conclusion of judging whether there is foam overflow in the washing tub may no longer be accurate.

[0049] Based on this, when facing the technical problems of related technologies, the inventors found through creative research that it is possible to determine whether there is foam overflow in the washing tub by obtaining the circuit conduction state data between the first metal probe and the second metal probe, and according to the circuit conduction state data and the washing mode of the washing tub. The circuit conduction state data between the first metal probe and the second metal probe is the state data related to the circuit conduction between the two. The circuit conduction state data is directly related to whether an effective current loop is formed between the first metal probe and the second metal probe. The first metal probe and the second metal probe are arranged at intervals. In the case of no foam connection, the first metal probe and the second metal probe cannot form a current loop; an effective current loop will be formed only when there is foam connection. For different washing modes of the washing tub, the foam generation situation will be different. Therefore, it is necessary to combine the washing mode to judge whether there is foam overflow in the washing tub. In this foam detection method of the present application, since the circuit conduction state data is the state data related to the circuit conduction, it is less affected by component aging and takes into account different working modes of the washing tub. Therefore, it is possible to more accurately judge whether foam is generated in the washing tub.

[0050] Figure 1 This is a foam detection method for a laundry treatment device provided by an embodiment of the present application. The execution subject of the foam detection method for the laundry treatment device provided in this embodiment can be the controller of the laundry treatment device. The foam detection method for the laundry treatment device provided in this embodiment includes the following steps:

[0051] Step 101, obtain the circuit conduction state data between the first metal probe and the second metal probe.

[0052] Among them, as Figure 2 shown, the laundry treatment device includes a controller, a washing tub 20 and a drying channel 21. The washing tub 20 is communicated with the drying channel 21. A pair of first metal probes 22 and second metal probes 23 which are arranged at intervals are arranged in the drying channel 21. The first metal probe 22 and the second metal probe 23 are metal conductors and can conduct electricity. The first metal probe 22 and the second metal probe 23 are located at the air outlet of the drying channel 21 leading to the washing tub 20. The air outlet can be any point position within a preset distance on the side of the drying channel 21 close to the washing tub 20, and no specific limitation is made.

[0053] A power supply for supplying power to the first metal probe and the second metal probe is arranged on the controller. When the controller turns on the power supply, it can make the first metal probe, the second metal probe and the power supply have the basic conditions for forming a loop. However, since there is an interval between the first metal probe and the second metal probe, an effective current loop cannot be formed only when the power supply is turned on.

[0054] During the operation of the washing tub of the laundry processing device, the controller can always supply power to the power supply. If there is foam overflow in the washing tub and the first metal probe and the second metal probe are connected, the first metal probe, the second metal probe and the power supply can form an effective current loop at the moment when the foam is connected to the first metal probe and the second metal probe or during a period of time of connection. In the case of forming an effective current loop, the controller can detect the circuit conduction state data of the effective current loop. At this time, the circuit conduction state data includes the state of conduction state and voltage value. In one embodiment, a voltage detection unit is provided on the controller. When powered on, the voltage on the effective current loop (that is, the voltage value between the terminals of the first metal probe and the second metal probe that are separated from each other) can be detected in real time and transmitted back to the controller, so that the controller obtains the voltage value between the first metal probe and the second metal probe, and determines that the state between the first metal probe and the second metal probe is the conduction state. Based on this, it can be understood that the controller obtains the circuit conduction state data between the first metal probe and the second metal probe, and the circuit conduction state data includes the voltage value and the state of conduction state. In another embodiment, a current detection unit is provided on the controller. When the current detection unit is powered on, it can detect the current on the effective current loop in real time and transmit it back to the controller, so that the controller can obtain the current value between the first metal probe and the second metal probe. The controller can also determine that the state between the first metal probe and the second metal probe is the on state. The controller then determines the voltage value on the effective current loop based on the known resistance of the first metal probe and the second metal probe, and the preset Ohm's law formula. Thus, the controller can determine the circuit conduction state data between the first metal probe and the second metal probe, and the circuit conduction state data includes the voltage value and the state is the on state.

[0055] When no current loop is formed, the voltage detection unit or the current detection unit still transmits voltage or current data back to the controller in real time, for example, the voltage is a null value.

[0056] Step 102: Determine whether there is foam overflow in the washing tub according to the circuit conduction state data.

[0057] It should be noted that the principle of foam detection is that foam contains water and some chemical substances that can serve as dielectrics and are conductive. The higher the concentration of foam, the better the conductivity, the greater the current in the effective current loop, and the greater the voltage on the current loop. Therefore, whether an effective current loop is formed and the magnitude of the voltage in the effective current loop can be used as a condition for judging whether foam overflow occurs during the washing process of the laundry processing device.

[0058] Specifically, after obtaining the circuit conduction state data, the controller can determine whether there is foam overflow in the washing tub.

[0059] In this application, the circuit conduction state data between the first metal probe and the second metal probe is obtained; based on the circuit conduction state data and the washing mode of the washing tub, it is determined whether there is foam overflow in the washing tub. The circuit conduction state data is directly related to whether an effective current loop is formed between the first metal probe and the second metal probe. The first metal probe and the second metal probe are arranged at intervals. In the case of no foam connection (i.e., no foam overflows into the drying channel), the first metal probe and the second metal probe cannot form a current loop; an effective current loop will be formed only in the case of foam connection. In this foam detection method of this application, since the circuit conduction state data is the state data related to circuit conduction and is less affected by component aging, it can more accurately determine whether foam is generated in the washing tub.

[0060] In addition, the accuracy of the water level sensor detection is also affected by the working conditions in the washing tub. Therefore, in one embodiment, as Figure 3 shown, the foam detection method of the laundry treatment device includes the following steps:

[0061] Step 201, obtain the circuit conduction state data between the first metal probe and the second metal probe.

[0062] Step 202, based on the circuit conduction state data and the washing mode of the washing tub, determine whether there is foam overflow in the washing tub.

[0063] Among them, the washing mode of the washing tub refers to the working mode of the washing tub during the process of washing clothes. For example, strong washing and normal washing. For different washing modes, the possibility and degree of foam overflow are different. Therefore, it is necessary to further determine whether there is foam overflow in the washing tub according to the washing mode of the washing tub.

[0064] Among them, for different washing modes, the possibility and degree of foam overflow are different. For example, when the amount of clothes to be washed and the detergent are not significantly different, the possibility and degree of foam overflow in the washing tub in the strong washing mode are generally greater than those in the normal washing mode.

[0065] After obtaining the circuit conduction state data and the washing mode of the washing tub, the controller can determine whether there is foam overflow in the washing tub.

[0066] In this embodiment, based on the circuit conduction state data, further combined with the washing mode of the washing tub to determine whether there is foam overflow, it can make a more accurate foam overflow judgment for the washing mode.

[0067] In one embodiment, as Figure 4 shown, step 202 includes the following steps:

[0068] Step 301: Determine whether the state between the first metal probe and the second metal probe is a conducting state based on the circuit conduction state data, and the voltage value in the conducting state.

[0069] Among them, the circuit conduction state data includes a state of non-conduction, or a state of conduction and the voltage value in the conducting state.

[0070] According to the circuit conduction state data, it can be determined whether the state between the first metal probe and the second metal probe is a conducting state, and the voltage value in the conducting state.

[0071] Step 302: If it is determined that the state between the first metal probe and the second metal probe is a conducting state, and the voltage value in the conducting state is greater than or equal to the voltage threshold corresponding to the washing mode, then obtain the duration for which the voltage value is greater than or equal to the voltage threshold corresponding to the washing mode.

[0072] Among them, in different washing modes of the washing tub, the corresponding voltage thresholds for determining whether there is foam overflow in the washing tub are different. For any washing mode, as long as the voltage value between the first metal probe and the second metal probe in the conducting state satisfies being greater than or equal to the voltage threshold of this washing mode, it can be determined that there is foam overflow in the washing tub.

[0073] The voltage thresholds in different washing modes may be different or the same, without specific limitation.

[0074] For the first washing mode, in order to avoid the water generated by centrifugation in this washing mode from conducting the first metal probe and the second metal probe, resulting in misjudgment of foam detection, the corresponding voltage threshold in the first washing mode is set. For example, the voltage threshold in the first washing mode is U1. When it is detected that the voltage value is greater than or equal to U1, it can be determined that there is foam overflow, rather than caused by local splashing of water. The same applies to the second washing mode, which will not be elaborated here.

[0075] Specifically, if it is determined that the state between the first metal probe and the second metal probe is a conducting state, and the voltage value in the conducting state is greater than or equal to the voltage threshold corresponding to the washing mode, the controller further obtains the duration for which the voltage value is greater than or equal to the voltage threshold corresponding to the washing mode, that is, determines the maintenance duration of continuous foam overflow when there is foam overflow in the washing tub. For the situation where there is foam overflow for a continuous period of time, the controller needs to take corresponding measures to avoid the foam overflowing into the drying channel and prevent circuit damage or short circuit.

[0076] Step 303: Determine whether there is foam overflow in the washing tub according to the washing mode of the washing tub and the duration.

[0077] Specifically, the controller can combine the washing mode of the washing tub and the duration to determine whether there is foam overflow in the washing tub. Considering the duration further is because if the foam overflow is only instantaneous or intermittent for a period of time, the possibility of overflowing into the drying channel is relatively small. Therefore, by adding the duration for judgment in such cases, at least these two cases can be excluded, improving the accuracy of foam detection.

[0078] In this embodiment, based on the circuit conduction state data, determine whether the state between the first metal probe and the second metal probe is a conduction state and the voltage value in the conduction state; if it is determined that the state between the first metal probe and the second metal probe is a conduction state and the voltage value in the conduction state is greater than or equal to the voltage threshold corresponding to the washing mode, then obtain the duration during which the voltage value is greater than or equal to the voltage threshold corresponding to the washing mode; according to the washing mode of the washing tub and the duration, determine whether there is foam overflow in the washing tub. Since the voltage value in the conduction state is greater than or equal to the voltage threshold corresponding to the washing mode, the corresponding duration is obtained, and then combined with the washing mode of the washing tub to judge whether there is foam overflow, which can make the judgment of foam overflow more accurate.

[0079] In one embodiment, as Figure 5 shown, step 303 includes the following steps:

[0080] Step 401: If it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to the preset first duration threshold, then determine that there is foam overflow in the washing tub.

[0081] Among them, the rotation speed of the washing tub in the first washing mode is greater than the rotation speed of the washing tub in the second washing mode. The first washing mode is, for example, the strong washing mode described above, and the second washing mode is, for example, the conventional washing mode described above. The first duration threshold is preset by the controller. In the first washing mode, if the duration is greater than or equal to the first duration threshold, it can be determined that there is foam overflow in the washing tub.

[0082] If it is determined that the duration in the first washing mode is less than the first duration threshold, then determine that there is no foam overflow in the washing tub.

[0083] Step 402: If it is determined that the washing mode of the washing tub is the second washing mode and the duration is greater than or equal to the preset second duration threshold, then determine that there is foam overflow in the washing tub.

[0084] If it is determined that the duration in the second washing mode is less than the second duration threshold, it is determined that there is no foam overflow in the washing tub.

[0085] Wherein, the second duration threshold is preset by the controller. In the second washing mode, if the duration is greater than or equal to the second duration threshold, it can be determined that there is foam overflow in the washing tub.

[0086] The first duration threshold is less than the second duration threshold. The first duration threshold can be set to 5 seconds, for example, and the second duration threshold can be set to 10 seconds. The consideration for setting the first duration threshold less than the second duration threshold here is that in the first washing mode, the rotation speed is higher, and it is easier to generate more foam instantaneously, so the time setting is more sensitive.

[0087] In this embodiment, if it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to the preset first duration threshold, it is determined that there is foam overflow in the washing tub; if it is determined that the washing mode of the washing tub is the second washing mode and the duration is greater than or equal to the preset second duration threshold, it is determined that there is foam overflow in the washing tub; wherein, the rotation speed of the washing tub in the first washing mode is greater than the rotation speed of the washing tub in the second washing mode, and the first duration threshold is less than the second duration threshold. In different washing modes of the washing tub, according to the corresponding duration threshold, it can be judged whether there is foam overflow in the washing tub, which can make the judgment of foam overflow more accurate. For example, for a washing mode that is more likely to generate more foam instantaneously, the preset duration threshold is set shorter, so that it can be determined in time whether there is foam overflow in the washing tub. For another washing mode, the preset duration threshold is set longer, which is more reasonable.

[0088] In one embodiment, if it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to the preset first duration threshold, after it is determined that there is foam overflow in the washing tub, the foam detection method of the laundry treatment device further includes: controlling the washing tub to switch from the first washing mode to the second washing mode.

[0089] After switching to the second washing mode, the controller judges whether there is foam overflow in the washing tub according to the judgment conditions in the second washing mode. The method flow is the same as above and will not be elaborated here.

[0090] In one embodiment, if it is determined that the washing mode of the washing tub is the second washing mode and the duration is less than the second duration threshold, the foam detection method of the laundry treatment device further includes:

[0091] a. Determine that there is no foam overflow in the washing tub.

[0092] That is, the washing mode of the washing tub is the second washing mode and the duration is less than the second duration threshold. In this case, the controller can determine that there is no foam overflow in the washing tub.

[0093] b. Control the washing tub to operate according to the second washing mode to wash the clothes in the washing tub.

[0094] Here, when the controller determines that there is no foam overflow in the washing tub, it controls the washing tub to continue operating according to the second washing mode. That is, when there is no foam overflow in the washing tub, there will be no situation of pausing or stopping the washing work.

[0095] The washing tub still operates according to the second washing mode, that is, the controller still controls the washing tub to wash the clothes in the second washing mode.

[0096] In this embodiment, the controller determines that there is no foam overflow in the washing tub; controls the washing tub to operate according to the second washing mode to wash the clothes in the washing tub. When there is no foam overflow, it is only necessary to continue washing the clothes according to the second washing mode to maintain the normal washing work of the laundry treatment device.

[0097] In one embodiment, the foam detection method of the laundry treatment device further includes the following steps:

[0098] a. Obtain a device operation instruction.

[0099] Among them, the device operation instruction is an instruction indicating the operation of the laundry treatment device received by the controller. The device operation instruction includes an identification code of the washing mode. Exemplarily, there are several menu buttons on the laundry treatment device, including a "washing mode" button. After the user puts the clothes into the laundry treatment device, presses the "washing mode" button and selects the corresponding washing mode, the controller can obtain the device operation instruction. Exemplarily, the user can also select the corresponding washing mode through the user terminal to enable the controller to obtain the device operation instruction.

[0100] b. Determine the washing mode of the washing tub based on a preset mapping relationship and the identification code of the washing mode.

[0101] Among them, the mapping relationship stores the corresponding relationship between the identification code of the washing mode and the washing mode.

[0102] Steps to determine the washing mode of the washing tub. In the case where there is no switch from the first washing mode to the second washing mode, for example, the washing tub has been operating in the first washing mode without switching, or the washing tub has been operating in the second washing mode all the time, this step can occur before step 202 and only needs to be executed once. In the case where there is a switch from the first washing mode to the second washing mode, this step is executed once before step 202. After the controller controls the washing tub to switch from the first washing mode to the second washing mode, this step is executed again. Then, the controller determines whether there is foam overflow in the washing tub based on the circuit conduction state data and the second washing mode of the washing tub.

[0103] In this embodiment, a device operation instruction is obtained; wherein, the device operation instruction includes an identification code of the washing mode; based on a preset mapping relationship and the identification code of the washing mode, the washing mode of the washing tub is determined; wherein, the mapping relationship stores the corresponding relationship between the identification code of the washing mode and the washing mode. After the controller receives the device operation instruction, it can quickly and accurately determine the washing mode of the washing tub based on the mapping relationship.

[0104] In an application embodiment, after the laundry treatment device starts the washing program, a foam detection method for the laundry treatment device is as Figure 6 shown, and specifically includes the following steps:

[0105] Step 501, obtain the circuit conduction state data between the first metal probe and the second metal probe.

[0106] Step 502, determine whether the washing tub is currently in the first washing mode or the second washing mode.

[0107] Here, step 501 and step 502 can be executed simultaneously, or the execution order can be different. The sequence of steps 501 and 502 is not limited.

[0108] In the case where the circuit conduction state data includes a conduction state and the voltage value in the conduction state, if it is determined to be the first washing mode, step 503 is executed to determine whether the voltage value in the conduction state is greater than or equal to the voltage threshold in the first washing mode. If not, step 504 is executed to determine that there is no foam overflow in the washing tub. Since there is no foam overflow in the washing tub, correspondingly, step 505 is executed to control the washing tub to continue washing in the first washing mode.

[0109] If so, execute step 506 to obtain the duration during which the voltage value is greater than or equal to the voltage threshold in the first washing mode. Execute step 507 to determine whether the duration in the first washing mode is greater than or equal to the preset first duration threshold. If so, execute step 508 to determine that there is foam overflow in the washing tub. If not, execute step 504 to determine that there is no foam overflow in the washing tub. In the case where it is determined in step 508 that there is foam overflow, execute step 509 to control the washing tub to switch from the first washing mode to the second washing mode. After switching, control according to the control logic of the second washing mode, which will not be elaborated here.

[0110] In the case where the circuit conduction state data includes a conduction state and the voltage value in the conduction state, if it is determined to be the second washing mode, execute step 510 to determine whether the voltage value in the conduction state is greater than or equal to the voltage threshold in the second washing mode. If not, execute step 511 to determine that there is no foam overflow in the washing tub. Since there is no foam overflow in the washing tub, correspondingly, execute step 512 to control the washing tub to continue the washing work according to the second washing mode.

[0111] If so, execute step 513 to obtain the duration during which the voltage value is greater than or equal to the voltage threshold in the second washing mode. Execute step 514 to determine whether the duration in the second washing mode is greater than or equal to the preset second duration threshold. If so, execute step 515 to determine that there is foam overflow in the washing tub. After that, execute step 516 to control the washing tub to stop the washing work. If not, execute step 517 to determine that there is no foam overflow in the washing tub, and execute step 518 to control the washing tub to continue the washing work according to the second washing mode.

[0112] In this embodiment, in combination with the circuit conduction state data between the first metal probe and the second metal probe and the washing mode, it is determined whether there is foam overflow in the washing tub. Since the circuit conduction state data is the state data related to circuit conduction, it is less affected by component aging, and different working modes of the washing tub are considered. Therefore, it is possible to more accurately determine whether foam is generated in the washing tub.

[0113] To implement the method of the embodiments of the present application, the embodiments of the present application further provide a foam detection device for a laundry treatment device, as Figure 7 shown. The foam detection device 400 of the laundry treatment device corresponds to the above-mentioned foam detection method of the laundry treatment device, and each step in the embodiments of the above-mentioned foam detection method of the laundry treatment device is also fully applicable to the embodiments of the foam detection device of the present laundry treatment device.

[0114] The laundry treatment device includes a washing tub and a drying channel, and the washing tub is communicated with the drying channel. The device 400 includes:

[0115] The conduction data acquisition module 401 is used to acquire the circuit conduction state data between the first metal probe and the second metal probe; wherein the first metal probe and the second metal probe are arranged at an interval;

[0116] The foam overflow determination module 402 is used to determine whether foam overflow occurs in the washing tub according to the circuit conduction state data.

[0117] In one embodiment, the conduction data acquisition module 401 is specifically used to: obtain the voltage value between the terminals on the first metal probe and the second metal probe that are opposite to each other; if it is determined that the voltage value exists, then determine that the circuit conduction state data between the first metal probe and the second metal probe includes a state of conduction, and the voltage value in the conduction state is the voltage value; if it is determined that the voltage value does not exist, then determine that the circuit conduction state data between the first metal probe and the second metal probe includes a state of non-conduction.

[0118] In one embodiment, the foam overflow determination module 402 is used to determine whether foam overflow occurs in the washing tub according to the circuit conduction state data and the washing mode of the washing tub.

[0119] In one embodiment, the foam overflow judgment module 402 is specifically used to: determine whether the state between the first metal probe and the second metal probe is a conductive state, and the voltage value in the conductive state based on the circuit conductive state data; if it is determined that the first metal probe and the second metal probe are in a conductive state, and the voltage value in the conductive state is greater than or equal to the voltage threshold in the corresponding washing mode, then obtain the duration of the voltage value being greater than or equal to the voltage threshold in the corresponding washing mode; determine whether there is foam overflow in the washing tub according to the washing mode of the washing tub and the duration.

[0120] In one embodiment, the foam overflow judgment module 402 is specifically used to: if it is determined that the washing mode of the washing tub is the first washing mode, and the duration is greater than or equal to a preset first duration threshold, then it is determined that foam overflow exists in the washing tub; if it is determined that the washing mode of the washing tub is the second washing mode, and the duration is greater than or equal to a preset second duration threshold, then it is determined that foam overflow exists in the washing tub; wherein, the rotation speed of the washing tub in the first washing mode is greater than the rotation speed of the washing tub in the second washing mode, and the first duration threshold is less than the second duration threshold.

[0121] In one embodiment, the foam overflow determination module 402 is further configured to: if it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to a preset first duration threshold, after determining that there is foam overflow in the washing tub, control the washing tub to switch from the first washing mode to the second washing mode.

[0122] In one embodiment, the foam overflow determination module 402 is further configured to: if it is determined that the washing mode of the washing tub is the second washing mode and the duration is less than the second duration threshold, determine that there is no foam overflow in the washing tub; control the washing tub to operate according to the second washing mode to perform the washing work on the clothes in the washing tub.

[0123] In one embodiment, the device 400 further includes an instruction acquisition module, configured to: acquire a device operation instruction; wherein, the device operation instruction includes an identification code of a washing mode; determine the washing mode of the washing tub based on a preset mapping relationship and the identification code of the washing mode; wherein, the mapping relationship stores the corresponding relationship between the identification code of the washing mode and the washing mode.

[0124] In practical applications, the conduction data acquisition module 401, the foam overflow determination module 402, and the instruction acquisition module can be implemented by a processor in the foam detection device 400 of the laundry treatment device. Of course, the processor needs to run a computer program in the memory to implement its functions.

[0125] It should be noted that: when the foam detection device of the laundry treatment device provided in the above embodiment performs foam detection on the laundry treatment device, only the above-mentioned division of each program module is used for illustration. In practical applications, the above-mentioned processing can be allocated to different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the foam detection device of the laundry treatment device provided in the above embodiment and the embodiment of the foam detection method of the laundry treatment device belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0126] Based on the hardware implementation of the above program module, and in order to implement the method of the embodiments of the present application, the embodiments of the present application further provide a foam detection device for a laundry treatment device. Figure 8 Only the exemplary structure of the foam detection device of the laundry treatment device is shown, rather than all structures, and part or all of the structures shown can be implemented according to needs Figure 8 shown.

[0127] Such as Figure 8As shown in the figure, the laundry treatment device 500 provided by the embodiment of the present application includes: at least one processor 501, a memory 502, a user interface 503, and at least one network interface 504. Each component in the laundry treatment device 500 is coupled together through a bus system 505. It can be understood that the bus system 505 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, in Figure 8 all kinds of buses are labeled as the bus system 505.

[0128] Among them, the user interface 503 may include a display, a keyboard, a mouse, a trackball, a click wheel, a button, a touchpad, or a touch screen, etc.

[0129] The memory 502 in the embodiment of the present application is used to store various types of data to support the operation of the laundry treatment device. Examples of these data include: any computer program for operating on the laundry treatment device.

[0130] The foam detection method of the laundry treatment device disclosed in the embodiment of the present application can be applied to or implemented by the processor 501. The processor 501 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the foam detection method of the laundry treatment device can be completed by the integrated logic circuit in the hardware of the processor 501 or instructions in the form of software. The above-mentioned processor 501 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 501 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as being executed by the hardware decoding processor, or executed by a combination of the hardware and software modules in the decoding processor. The software module may be located in the storage medium, and this storage medium is located in the memory 502. The processor 501 reads the information in the memory 502 and combines its hardware to complete the steps of the foam detection method of the laundry treatment device provided by the embodiment of the present application.

[0131] In an exemplary embodiment, the laundry treating apparatus may be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field programmable gate arrays (FPGAs), general purpose processors, controllers, microcontroller units (MCUs), microprocessors, or other electronic components for performing the foregoing method.

[0132] It can be understood that the memory 502 can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), an electrically erasable programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), a ferromagnetic random access memory (FRAM, ferromagnetic random access memory), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM, Compact Disc Read-Only Memory); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as a static random access memory (SRAM, Static Random Access Memory), a synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), a dynamic random access memory (DRAM, Dynamic Random Access Memory), a synchronous dynamic random access memory (SDRAM, Synchronous Dynamic Random Access Memory), a double data rate synchronous dynamic random access memory (DDR SDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), an enhanced synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), a sync link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), a direct rambus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but not limited to, these and any other suitable types of memories.

[0133] In an exemplary embodiment, the embodiments of the present application further provide a computer storage medium, that is, a computer storage medium, specifically, a computer-readable storage medium, such as a memory 502 storing a computer program, and the above computer program can be executed by a processor 501 of a laundry treatment device to complete the steps described in the method of the embodiments of the present application. The computer-readable storage medium can be a memory such as ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0134] It should be noted that: "first", "second", etc. are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0135] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0136] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for detecting foam in a laundry treatment device, the laundry treatment device comprising a washing tub and a drying tunnel, the washing tub being in communication with the drying tunnel, characterized in that, a first metal probe and a second metal probe are spaced apart in the drying tunnel, and the method includes: obtaining circuit conduction state data between the first metal probe and the second metal probe; determining whether there is foam overflow in the washing tub according to the circuit conduction state data.

2. The method according to claim 1, characterized in that, the obtaining of the circuit conduction state data between the first metal probe and the second metal probe includes: obtaining a voltage value between terminals facing away from each other on the first metal probe and the second metal probe; if it is determined that the voltage value exists, then determining that the circuit conduction state data between the first metal probe and the second metal probe includes a conduction state and the voltage value in the conduction state is the voltage value; if it is determined that the voltage value does not exist, then determining that the circuit conduction state data between the first metal probe and the second metal probe includes a non-conduction state.

3. The method according to claim 1, characterized in that, the determining whether there is foam overflow in the washing tub according to the circuit conduction state data includes: determining whether there is foam overflow in the washing tub according to the circuit conduction state data and the washing mode of the washing tub.

4. The method according to claim 3, characterized in that, the determining whether there is foam overflow in the washing tub according to the circuit conduction state data and the washing mode of the washing tub includes: based on the circuit conduction state data, determining whether the state between the first metal probe and the second metal probe is a conduction state and the voltage value in the conduction state; if it is determined that the state between the first metal probe and the second metal probe is a conduction state and the voltage value in the conduction state is greater than or equal to the voltage threshold corresponding to the washing mode, then obtaining the duration during which the voltage value is greater than or equal to the voltage threshold corresponding to the washing mode; determining whether there is foam overflow in the washing tub according to the washing mode of the washing tub and the duration.

5. The method according to claim 4, characterized in that, the determining whether there is foam overflow in the washing tub according to the washing mode of the washing tub and the duration includes: if it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to a preset first duration threshold, then determining that there is foam overflow in the washing tub; if it is determined that the washing mode of the washing tub is the second washing mode and the duration is greater than or equal to a preset second duration threshold, then determining that there is foam overflow in the washing tub; wherein, the rotation speed of the washing tub in the first washing mode is greater than the rotation speed of the washing tub in the second washing mode, and the first duration threshold is less than the second duration threshold.

6. The method according to claim 5, characterized in that, If it is determined that the washing mode of the washing tub is the first washing mode and the duration is greater than or equal to a preset first duration threshold, after it is determined that there is foam overflow in the washing tub, the method further includes: Controlling the washing tub to switch from the first washing mode to the second washing mode.

7. The method according to claim 5, wherein, If it is determined that the washing mode of the washing tub is the second washing mode and the duration is less than the second duration threshold, the method further includes: Determining that there is no foam overflow in the washing tub; Controlling the washing tub to operate according to the second washing mode to perform the washing work on the clothes in the washing tub.

8. The method according to claim 1, wherein, The method further includes: Obtaining a device operation instruction; wherein, the device operation instruction includes an identification code of a washing mode; Based on a preset mapping relationship and the identification code of the washing mode, determining the washing mode of the washing tub; wherein, the mapping relationship stores the corresponding relationship between the identification code of the washing mode and the washing mode.

9. A foam detection device for a laundry treatment device, the laundry treatment device includes a washing tub and a drying channel, and the washing tub is communicated with the drying channel, wherein, A first metal probe and a second metal probe are arranged at intervals in the drying channel, and the device includes: A conduction data acquisition module, configured to acquire circuit conduction state data between the first metal probe and the second metal probe; wherein, the first metal probe and the second metal probe are arranged at intervals; A foam overflow judgment module, configured to determine whether there is foam overflow in the washing tub according to the circuit conduction state data.

10. A laundry treatment device, the laundry treatment device includes a washing tub and a drying channel, and the washing tub is communicated with the drying channel, wherein, A first metal probe and a second metal probe are arranged at intervals in the drying channel, and the laundry treatment device includes: a processor and a memory for storing a computer program that can run on the processor, wherein, The processor is configured to execute the steps of the method according to any one of claims 1 to 8 when running the computer program.

11. A computer storage medium, on which a computer program is stored, wherein, When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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