Drainage detection method in washing chamber, washing equipment, and computer storage medium

Abstract

The present application discloses a method for detecting drainage in a washing chamber, a washing device, and a computer storage medium. The method for detecting drainage in a washing chamber comprises: after the drainage procedure of the washing chamber is completed, a detection procedure is performed; the detection procedure comprises: driving a washing pump in the washing chamber; detecting the washing current of the washing pump, and determining the residual water level in the washing chamber according to the washing current; and repeating the drainage procedure when it is determined that the residual water level is higher than a preset water level. In this way, the reliability of drainage control and drainage detection can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of household electrical appliances, and in particular to a drainage detection method in a washing chamber, a washing device, and a computer storage medium. Background Art

[0002] At present, when the washing equipment starts the drainage program, it generally drains the water by controlling the drainage pump to run for a fixed length of time. With this drainage method, when the drainage system is abnormal, such as the drain pipe is blocked, the drainage pump interferes, etc., it will cause the washing equipment to drain poorly, and the dirty water after washing will be retained in the washing chamber, resulting in a decrease in the cleaning effect. If the drainage problem is caused by the filter, the washing pump will fail faster due to dry grinding. When the drainage capacity of the drainage system is too low, continuous washing will cause the water level in the washing chamber to be too high, and even overflow from the door gap and other components, causing the user's kitchen to be flooded, and may also cause the risk of electric shock; or when the amount of water in the washing chamber is small, it will cause the drainage pump to idle. Summary of the invention

[0003] The main technical problem solved by the present application is to provide a drainage detection method and a washing device in a washing chamber to improve the reliability of drainage detection and control.

[0004] In order to solve the above technical problems, a technical solution adopted by the present application is to provide a drainage detection method in a washing chamber. The drainage detection method in a washing chamber includes: after the drainage procedure of the washing chamber is completed, a detection procedure is performed; the detection procedure includes: driving a washing pump in the washing chamber; detecting the washing current of the washing pump, and determining the residual water level in the washing chamber according to the washing current; if it is determined that the residual water level is higher than a preset water level, the drainage procedure is repeated.

[0005] In a specific embodiment, if the residual water level is determined to be higher than a preset water level, the drainage procedure is repeated, including: if the residual water level is determined to be higher than a preset water level, the drainage procedure and the detection procedure are repeated; if during the repeated detection procedure, it is determined that the residual water level is higher than the preset water level for more than a preset number of times, an alarm is issued.

[0006] In a specific embodiment, if the residual water level is determined to be higher than the preset water level, the drainage procedure is repeated, including: if the residual water level is determined to be higher than the preset water level, the washing pump is controlled to pause for a first preset time period, and then the drainage procedure is repeated.

[0007] In a specific embodiment, the drainage procedure of the washing chamber includes: switching the washing pump to the drainage function and driving the washing pump to drain water; the driving of the washing pump in the washing chamber includes: switching the washing pump to the washing function and driving the washing pump to wash; the determination that the residual water level is higher than the preset water level repeats the drainage procedure, including: determining that the residual water level is higher than the preset water level, controlling the washing pump to reverse for a second preset time, and then repeating the drainage procedure.

[0008] In a specific embodiment, determining the residual water level in the washing chamber according to the washing current includes: acquiring a washing water level corresponding to the washing current in a preset database as the residual water level in the washing chamber.

[0009] In a specific embodiment, the above-mentioned detection of the washing current of the washing pump and determining the residual water level in the washing chamber according to the washing current include: detecting the average washing current, the maximum washing current and the minimum washing current of the washing pump within a third preset time period; determining the residual water level according to the average washing current, the maximum washing current and the minimum washing current, wherein the residual water level is positively correlated with the average washing current and positively correlated with the difference between the maximum washing current and the minimum washing current.

[0010] In order to solve the above technical problems, a technical solution adopted by the present application is: to provide a washing device. The washing device includes: a washing pump; a driver connected to the washing pump; a current detector connected to the washing pump; a controller connected to the current detector and the driver respectively. The controller is used to perform a detection procedure after the drainage procedure of the washing device is completed, control the driver to drive the washing pump to work, and control the current detector to detect the washing current of the washing pump, and determine the residual water level in the washing chamber according to the washing current; the controller is used to determine that the residual water level is higher than a preset water level, and then control the washing device to repeat the drainage procedure.

[0011] In a specific embodiment, the washing device further includes: a drainage pump connected to the controller, and the controller controls the drainage pump to drain water to perform a drainage procedure.

[0012] In a specific embodiment, the washing pump is a variable frequency drainage pump, and the controller controls the washing pump to drain water to execute a drainage procedure.

[0013] In a specific embodiment, the washing device further includes an alarm module connected to the controller, and the controller is used to determine that the residual water level is higher than a preset water level, and then repeat the drainage procedure and the detection procedure; if during the repeated detection procedure, the controller determines that the residual water level is higher than the preset water level for more than a preset number of times, the alarm module is controlled to issue an alarm.

[0014] In order to solve the above technical problem, a technical solution adopted by the present application is to provide a computer storage medium having program instructions stored thereon, which can be executed to implement the above drainage detection method in the washing chamber.

[0015] The beneficial effects of the embodiments of the present application are as follows: the drainage detection method in the washing chamber of the present application includes: after the drainage procedure of the washing chamber is completed, a detection procedure is performed; the detection procedure includes: driving the washing pump in the washing chamber; detecting the washing current of the washing pump, and determining the residual water level in the washing chamber according to the washing current; and repeating the drainage procedure when it is determined that the residual water level is higher than the preset water level. In this way, the present application can further perform the detection procedure after the drainage procedure of the washing chamber is completed to detect the residual water level in the washing chamber, and when the residual water level is higher than the preset water level, the drainage procedure is re-performed to further drain the residual water in the washing chamber, thereby avoiding the residual water in the washing chamber after washing is completed, improving the reliability of drainage control, and avoiding the problems of sanitation safety and overflow safety caused by the residual water in the washing chamber; and the present application can determine the residual water level in the washing chamber by detecting the washing current of the washing pump, thereby avoiding the problem that the drainage system is abnormal and the residual water level in the washing chamber cannot be accurately obtained according to the situation of the drainage system, so the present application can also improve the reliability of drainage detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a drainage detection method in a washing chamber of the present application;

[0018] Figure 2 yes Figure 1 A schematic diagram of a specific flow chart of step S13 in the method for detecting drainage in a washing chamber in an embodiment;

[0019] Figure 3 yes Figure 1 A schematic diagram of a specific flow chart of step S14 in the method for detecting drainage in a washing chamber in an embodiment;

[0020] Figure 4 It is a structural schematic diagram of an embodiment of a drainage detection method in a washing chamber of the present application;

[0021] Figure 5 It is a structural schematic diagram of an embodiment of the washing equipment of the present application;

[0022] Figure 6 It is a structural schematic diagram of an embodiment of the washing equipment of the present application;

[0023] Figure 7 It is a structural diagram of an embodiment of the computer storage medium of the present application. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present application.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0026] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] This application first proposes a drainage detection method in a washing chamber, such as Figure 1 As shown, Figure 1 1 is a schematic diagram of a structure of an embodiment of a method for detecting drainage in a washing chamber of the present application. The method for detecting drainage in a washing chamber of the present embodiment specifically comprises the following steps:

[0028] Step S11: After the drainage process of the washing chamber is completed, a detection process is performed.

[0029] After the washing equipment is started or the washing program is completed, the washing chamber drainage program is first performed to discharge the water in the washing chamber. The drainage program discharges the water in the washing chamber according to a predetermined drainage rate (such as a preset motor speed) and a preset drainage time; and after the washing chamber drainage program is completed, the detection program is performed.

[0030] The detection procedure includes steps S12 to S14.

[0031] Step S12: driving the washing pump in the washing chamber.

[0032] When the washing machine is in the washing process, the washing pump will be driven to wash the laundry, and after the washing process is completed, the washing pump will be controlled to stop working to avoid idling of the washing pump, avoid safety problems and save energy. Therefore, the washing pump needs to be re-driven when the detection process is performed.

[0033] In one application scenario, when a drainage detection instruction is received (the drainage detection instruction can be triggered by the user through buttons, voice, or gestures, or the drainage detection instruction can be automatically triggered after the washing program is completed), the washing pump is driven to obtain the washing current of the washing pump.

[0034] Step S13: Detect the washing current of the washing pump, and determine the residual water level in the washing chamber according to the washing current.

[0035] When the washing pump is working, the washing current of the washing pump is detected, and the washing current may be the working current of the motor in the washing pump; at a certain speed, the working current of the motor is positively correlated with the load, and the load is the amount of water in the washing chamber. When the motor runs at a fixed speed, the more water there is, the greater the load of the dishwasher, and the greater the operating current of the motor. The residual water level corresponding to the current washing current of the washing pump may be obtained based on a preset database.

[0036] The preset database may store a plurality of mapping relationships between washing currents and washing water levels. In this embodiment, the washing water level corresponding to the washing current in the preset database may be obtained as the residual water level in the washing chamber.

[0037] Optionally, this embodiment can be implemented by Figure 2 The method shown implements step S13. The method of this embodiment includes step S21 and step S22.

[0038] Step S21: Detecting the average washing current, the maximum washing current and the minimum washing current of the washing pump within a third preset time period.

[0039] After driving the washing pump, the washing current of the washing pump is detected multiple times within a third preset time period to obtain multiple washing currents, and the average washing current, maximum washing current and minimum washing current of the multiple washing currents are obtained.

[0040] Step S22: Determine the residual water level according to the average washing current, the maximum washing current and the minimum washing current, wherein the residual water level is positively correlated with the average washing current and positively correlated with the difference between the maximum washing current and the minimum washing current.

[0041] The difference between the maximum washing current and the minimum washing current of the multiple washing currents is calculated, and the residual water level is determined according to the average washing current, the maximum washing current and the minimum washing current.

[0042] In this way, the residual water level can be determined based on the average and variation range of the washing current of the washing pump within the third preset time period, which can avoid the problem of low measurement accuracy caused by abnormal washing current detected once or several times.

[0043] Step S14: if it is determined that the residual water level is higher than the preset water level, the drainage procedure is repeated.

[0044] The residual water level is compared with the preset water level. If it is determined that the residual water level is higher (greater than) the preset water level, the drainage procedure is repeated; if it is determined that the residual water level is equal to or lower than the preset water level, the washing, drainage and drainage detection are completed.

[0045] Usually after the drainage process of the washing equipment is completed, some water will still remain in the washing chamber. The preset water level (preset water volume) can be set according to actual needs. That is, if the residual water level in the washing chamber is greater than the preset water level, it means that drainage is required until the residual water level in the washing chamber is less than or equal to the preset water level.

[0046] Different from the prior art, the present embodiment can further perform a detection procedure after the drainage procedure of the washing chamber is completed to detect the residual water level in the washing chamber, and when the residual water level is higher than the preset water level, re-perform the drainage procedure to further drain the residual water in the washing chamber. Therefore, it is possible to avoid residual water in the washing chamber after washing is completed, improve the reliability of drainage control, and avoid problems such as sanitary safety and overflow safety caused by residual water in the washing chamber; and the present embodiment determines the residual water level in the washing chamber by detecting the washing current of the washing pump, which can avoid the problem that the drainage system is abnormal and the residual water level in the washing chamber cannot be accurately obtained according to the situation of the drainage system. Therefore, the present embodiment can also improve the reliability of drainage detection.

[0047] Optionally, this embodiment can be implemented by Figure 3 The method shown implements step S14. The method of this embodiment includes step S31 and step S32.

[0048] Step S31: if it is determined that the residual water level is higher than the preset water level, the drainage procedure and the detection procedure are repeated.

[0049] The repetition of the drainage procedure and the repetition of the detection procedure in this embodiment can be separated; for example, when it is determined that the residual water level in the washing chamber is higher than the preset water level, the drainage procedure can be repeated multiple times, and then the detection procedure can be performed. Alternatively, the repetition of the drainage procedure and the repetition of the detection procedure can be performed together; for example, the detection procedure is performed once after each drainage procedure is performed.

[0050] Step S32: If during the repeated detection procedure, it is determined that the residual water level is higher than the preset water level for more times than the preset times, an alarm is issued.

[0051] When receiving the drainage detection instruction (after the drainage program is finished), enter the detection program; drive the washing pump, obtain the washing current of the washing pump, and obtain the residual water level corresponding to the washing current; detect whether the residual water level is higher than the preset water level, if the residual water level is higher than the preset water level, increase the number of times the residual water level is higher than the preset water level by one; compare the updated number with the preset number, if the updated number is greater than the preset number, it means that the residual water in the washing chamber cannot be discharged after draining for many times, which means that the drainage system of the washing equipment has a fault, and an alarm is issued to warn that the drainage system of the washing equipment has a fault and needs to be inspected and repaired. If the updated number is less than or equal to the preset number, the drainage program is performed.

[0052] This embodiment can determine whether there is a fault in the drainage system of the washing equipment based on the washing current of the washing pump, and can promptly detect and repair the drainage system, thereby improving the stability of the use of the washing equipment, enhancing the user experience, and reducing market complaints.

[0053] Specifically, the washing machine may display an alarm code on a display screen or an indicator light may flash continuously, or a buzzer may sound continuously for a period of time, or a corresponding alarm voice entry may be played through a voice module.

[0054] Optionally, in this embodiment, step S14 may also be implemented in the following manner:

[0055] If it is determined that the residual water level is higher than the preset water level, the washing pump is controlled to pause for the first preset time, and then the drainage procedure is repeated. In this way, the drainage system can be automatically repaired first, and then the drainage procedure is repeated. It can automatically repair recoverable anomalies such as drainage system blockage and slight interference with the drainage pump. This method improves the reliability of the washing equipment and reduces the probability of higher risk anomalies such as overflow.

[0056] The drainage detection method of the present application can be used for washing equipment equipped with a washing pump and a drainage pump, wherein the washing pump is used to realize the washing function of the washing equipment, and the drainage pump is used to realize the drainage function of the washing equipment. The washing pump can be a variable frequency washing pump. For washing equipment with a variable frequency washing pump, no new components are required, and there is no need to extend the production and testing cycle. Function upgrades can be achieved simply by upgrading the software, which has no impact on production. The washing current of the variable frequency washing pump is used to detect the residual water level in the washing chamber, which is independent of the rotation speed of the variable frequency washing pump, and the detection result is reliable, thereby avoiding false alarms.

[0057] In an application scenario, after receiving a drainage instruction, the controller of the washing device controls the drainage pump to work for more than 5 seconds to drain the water in the washing chamber; after the drainage pump finishes working, the controller controls the driver to drive the washing pump to work; the controller controls the current detector to detect the washing current of the washing pump; the controller obtains the residual water level in the washing chamber corresponding to the washing current according to a preset database query; if the residual water level in the washing chamber is too high (>1.5~2.5L, the value is related to the specific washing device), the controller determines that the drainage system is abnormal and starts automatic repair. The process of automatic repair is: after the drainage pump and the washing pump are suspended (more than 1s, the value is related to the specific washing device), the step of the controller of the washing device controlling the drainage pump to work for more than 5s is repeated 1 to 20 times (the value is related to the specific washing device); if the drainage system is abnormal, and the current detector detects that the residual water level in the washing chamber is low (≤1.5~2.5L, the value is related to the specific washing device) during the process of repeating the step of the controller of the washing device controlling the drainage pump to work for more than 5s, reaching the preset number of repetitions, the controller interrupts the operation of the washing device and issues an alarm.

[0058] The drainage detection method of the present application can also be used in a washing device whose washing pump is a variable frequency drainage pump, which can realize both washing and drainage functions. The drainage procedure of the washing chamber includes: switching the washing pump to the drainage function and driving the washing pump to drain water. To this end, the present application further proposes another embodiment of the drainage detection method in the washing chamber, such as Figure 4 As shown, the drainage method of this embodiment specifically includes the following steps:

[0059] Step S41: After the drainage process of the washing chamber is completed, a detection process is performed.

[0060] Step S41 is similar to the above-mentioned step S11 and will not be described in detail here.

[0061] Step S42: Switch the washing pump to the washing function, and drive the washing pump to perform washing.

[0062] Step S43: Detect the washing current of the washing pump, and determine the residual water level in the washing chamber according to the washing current.

[0063] Step S43 is similar to the above-mentioned step S13 and will not be described in detail here.

[0064] Step S44: if it is determined that the residual water level is higher than the preset water level, the washing pump is controlled to reverse for a second preset time period, and then the drainage procedure is repeated.

[0065] In an application scenario, after receiving a drainage instruction, the controller of the washing device controls the washing pump to work for more than 5 seconds to drain the water in the washing chamber; after the washing and drainage work is completed, the controller controls the driver to drive the washing pump to work; the controller controls the current detector to detect the washing current of the washing pump; the controller obtains the residual water level in the washing chamber corresponding to the washing current according to a preset database query; if the residual water level in the washing chamber is too high (>1.5~2.5L, the value is related to the specific washing device), the controller determines that the drainage system is abnormal and starts automatic repair. The process of automatic repair is: after the washing pump is reversed (more than 1s, the value is related to the specific washing device), the step of the controller of the washing device controlling the drainage pump to work for more than 5s is repeated 1 to 20 times (the value is related to the specific washing device); if the drainage system is abnormal, and the current detector detects that the residual water level in the washing chamber is low (≤1.5~2.5L, the value is related to the specific washing device) during the process of repeating the step of the controller of the washing device controlling the washing pump to work for more than 5s and reaches the preset number of repetitions, the controller interrupts the operation of the washing device and issues an alarm.

[0066] The present application further proposes a washing device, such as Figure 5 As shown, Figure 5 1 is a schematic diagram of the structure of an embodiment of the washing device of the present application. The washing device of this embodiment (not shown) includes: a washing pump 51, a driver 52, a current detector 53 and a controller 54; wherein the driver 52 is connected to the washing pump 51; the current detector 53 is connected to the washing pump 51; the controller 54 is connected to the current detector 53 and the driver 52 respectively, and the controller 54 is used to perform a detection procedure after the drainage procedure of the washing device is completed, control the driver 52 to drive the washing pump 51 to work, and control the current detector 53 to detect the washing current of the washing pump 51, and determine the residual water level in the washing chamber according to the washing current; the controller 54 is used to determine that the residual water level is higher than the preset water level, and then control the washing device to repeat the drainage procedure.

[0067] The drive 52 may be a variable frequency drive.

[0068] Optionally, the washing device of this embodiment further includes: a drainage pump 55 connected to the controller 54, and the controller 54 controls the drainage pump 55 to drain water to perform a drainage procedure.

[0069] The controller 54 is further used to control the current detector 53 to detect the average washing current, maximum washing current and minimum washing current of the washing pump 51 within a third preset time period, and determine the residual water level based on the average washing current, maximum washing current and minimum washing current, wherein the residual water level is positively correlated with the average washing current and positively correlated with the difference between the maximum washing current and the minimum washing current; in this way, the controller 54 can determine the residual water level based on the mean and variation range of the washing current of the washing pump 51 within the third preset time period, and can avoid the problem of low measurement accuracy caused by abnormal washing current detected once or several times.

[0070] The controller 54 is further used to determine that the residual water level is higher than the preset water level, and then repeat the drainage procedure (drainage pump 55) and the detection procedure, and if it is determined that the residual water level is higher than the preset water level more than the preset number of times during the repeated detection procedure, an alarm is issued (alarm module 56). The controller 54 can determine that the drainage system of the washing equipment has a fault according to the washing current of the washing pump 51, and can repair the drainage system in time, thereby improving the stability of the use of the washing equipment, enhancing the user experience, and reducing market complaints.

[0071] The controller 54 is further used to determine that the residual water level is higher than the preset water level, and then control the washing pump 51 to pause for a first preset time, and then repeat the drainage procedure. In this way, the drainage system can be automatically repaired first, and then the drainage procedure can be repeated. It can automatically repair recoverable anomalies such as drainage system blockage and slight interference with the drainage pump. This method improves the reliability of the washing equipment and reduces the probability of higher risk anomalies such as overflow.

[0072] The washing pump 51 of the present embodiment can be a variable frequency washing pump. For washing equipment with a variable frequency washing pump, no new components are required, and there is no need to extend the production and testing cycle. Function upgrades can be achieved simply by upgrading the software, without affecting production. The washing current of the variable frequency washing pump is used to detect the residual water level in the washing chamber, which is independent of the rotation speed of the variable frequency washing pump. The detection result is reliable, thereby avoiding false alarms.

[0073] In another embodiment, the washing pump is a variable frequency drainage pump, and the washing device does not need to be provided with a drainage pump. The controller can control the washing pump not only to wash, but also to drain, so as to perform a drainage procedure. When the controller determines that the residual water level is higher than a preset water level, the washing pump is controlled to reverse for a second preset time, and then the drainage procedure is repeated.

[0074] Optionally, the washing device of this embodiment further includes an alarm module 56, which is connected to the controller 54. The controller 54 is used to determine that the residual water level is higher than a preset water level, and then repeat the drainage procedure and the detection procedure; if during the repeated detection procedure, the controller 54 determines that the residual water level is higher than the preset water level for more than a preset number of times, then the alarm module 56 is controlled to issue an alarm.

[0075] The alarm module 56 can be a display screen, an indicator light, a buzzer or a voice module, etc. In this embodiment, the alarm code can be displayed on the display screen or the indicator light can flash continuously, or the buzzer can beep continuously for a period of time, or the voice module can play the corresponding alarm voice entry.

[0076] The current detector 53, the driver 52 and the controller 54 can be integrated on the same hardware board, or can be arranged on multiple hardware boards. The current detector 53 and the driver 52 can be combined into one.

[0077] In another embodiment, if Figure 6 As shown, the washing pump and the drain pump can be arranged at the bottom of the washing chamber.

[0078] The above-mentioned drainage procedure of the present application can be that the drainage pump works for a preset time period or the drainage pump works in an on-off-on-off mode for a preset time period or a preset number of times.

[0079] The technical solution of the present application can be used in situations where the drainage motor cannot detect current.

[0080] The washing device of the present application can also use the above-mentioned drainage detection method in the washing chamber, which will not be described in detail here. The washing device of the present application can be a dishwasher, a washing machine, etc.

[0081] The present application further proposes a computer-readable storage medium, such as Figure 7 As shown, the computer readable storage medium 120 of this embodiment is used to store the program instructions 121 of the above embodiment, and the program instructions 121 can be executed to perform the method of the above method embodiment. The program instructions 121 have been described in detail in the above method embodiment and will not be repeated here.

[0082] The computer-readable storage medium 120 of this embodiment may be, but is not limited to, a USB flash drive, an SD card, a PD optical drive, a mobile hard disk, a large-capacity floppy drive, a flash memory, a multimedia memory card, a server, and the like.

[0083] Different from the prior art, the drainage detection method in the washing chamber of the present application includes: after the drainage procedure of the washing chamber is completed, a detection procedure is performed; the detection procedure includes: driving the washing pump in the washing chamber; detecting the washing current of the washing pump, and determining the residual water level in the washing chamber according to the washing current; if it is determined that the residual water level is higher than the preset water level, the drainage procedure is repeated. In this way, the present application can further perform a detection procedure after the drainage procedure of the washing chamber is completed to detect the residual water level in the washing chamber, and when the residual water level is higher than the preset water level, the drainage procedure is re-performed to further drain the residual water in the washing chamber, thereby avoiding the residual water in the washing chamber after washing is completed, improving the reliability of drainage control, and avoiding the problems of sanitation safety and overflow safety caused by the residual water in the washing chamber; and the present application determines the residual water level in the washing chamber by detecting the washing current of the washing pump, which can avoid the problem that the drainage system is abnormal and the residual water level in the washing chamber cannot be accurately obtained according to the situation of the drainage system, so the present application can also improve the reliability of drainage detection.

[0084] In addition, if the above functions are implemented in the form of software functions and sold or used as independent products, they can be stored in a storage medium readable by a mobile terminal, that is, the present application also provides a storage device storing program data, the program data can be executed to implement the method of the above embodiment, and the storage device can be, for example, a USB flash drive, an optical disk, a server, etc. In other words, the present application can be embodied in the form of a software product, which includes a number of instructions for enabling a smart terminal to execute all or part of the steps of the method described in each embodiment.

[0085] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0088] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (which can be a personal computer, server, network device or other system that can fetch instructions from the instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0089] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent mechanism or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for detecting drainage in a washing chamber, characterized in that: include: After the drainage procedure of the washing chamber is completed, a detection procedure is performed; The testing procedure includes: driving a washing pump in the washing chamber; Detecting the washing current of the washing pump and determining the residual water level in the washing chamber according to the washing current, including: detecting the average washing current, the maximum washing current and the minimum washing current of the washing pump within a third preset time period; determining the residual water level according to the average washing current, the maximum washing current and the minimum washing current, wherein the residual water level is positively correlated with the average washing current and positively correlated with the difference between the maximum washing current and the minimum washing current; If it is determined that the residual water level is higher than the preset water level, the drainage procedure is repeated, including: if it is determined that the residual water level is higher than the preset water level, the washing pump is controlled to pause for a first preset time period, and then the drainage procedure is repeated.

2. The drainage detection method according to claim 1, characterized in that: The step of determining the residual water level in the washing chamber according to the washing current further includes: A washing water level corresponding to the washing current in a preset database is obtained as a residual water level in the washing chamber.

3. A method for detecting drainage in a washing chamber, characterized in that: include: After the drainage procedure of the washing chamber is completed, a detection procedure is performed; The testing procedure includes: driving a washing pump in the washing chamber; Detecting the washing current of the washing pump and determining the residual water level in the washing chamber according to the washing current, including: detecting the average washing current, the maximum washing current and the minimum washing current of the washing pump within a third preset time period; determining the residual water level according to the average washing current, the maximum washing current and the minimum washing current, wherein the residual water level is positively correlated with the average washing current and positively correlated with the difference between the maximum washing current and the minimum washing current; If it is determined that the residual water level is higher than the preset water level, the drainage procedure is repeated, including: if it is determined that the residual water level is higher than the preset water level, the washing pump is controlled to reverse for a second preset time period, and then the drainage procedure is repeated.

4. The drainage detection method according to claim 3, characterized in that: The drainage procedure of the washing chamber includes: Switching the washing pump to a drainage function, and driving the washing pump to drain water; The method of driving the washing pump in the washing chamber comprises: The washing pump is switched to a washing function, and the washing pump is driven to perform washing.

5. The drainage detection method according to claim 3, characterized in that: The step of determining the residual water level in the washing chamber according to the washing current further includes: A washing water level corresponding to the washing current in a preset database is obtained as a residual water level in the washing chamber.

6. A washing device, characterized in that: include: Washing pump; A driver connected to the washing pump; A current detector connected to the washing pump; A controller is connected to the current detector and the driver, respectively. The controller is used to perform a detection procedure after the drainage procedure of the washing device is completed, control the driver to drive the washing pump to work, and control the current detector to detect the average washing current, maximum washing current and minimum washing current of the washing pump within a third preset time period, and determine the residual water level in the washing chamber according to the average washing current, maximum washing current and minimum washing current, wherein the residual water level is positively correlated with the average washing current and positively correlated with the difference between the maximum washing current and the minimum washing current; the controller is also used to determine that the residual water level is higher than the preset water level, then control the washing pump to pause for a first preset time period, and then control the washing device to repeat the drainage procedure, or to determine that the residual water level is higher than the preset water level, then control the washing pump to reverse for a second preset time period, and then control the washing device to repeat the drainage procedure.

7. The washing device according to claim 6, characterized in that: Further including: A drainage pump is connected to the controller, and the controller controls the drainage pump to drain water to perform the drainage procedure.

8. The washing device according to claim 6, characterized in that: The washing pump is a variable frequency drainage pump, and the controller controls the washing pump to drain water to execute the drainage procedure.

9. The washing device according to any one of claims 6 to 8, characterized in that: It further includes an alarm module connected to the controller, and the controller is used to determine that the residual water level is higher than a preset water level, and then repeat the drainage procedure and the detection procedure; if during the repeated detection procedure, the controller determines that the residual water level is higher than the preset water level for more than a preset number of times, then the alarm module is controlled to issue an alarm.

10. A computer storage medium, characterized in that: Program instructions are stored thereon, and the program instructions can be executed to implement the drainage detection method in the washing chamber described in any one of claims 1-2, or the program instructions can be executed to implement the drainage detection method in the washing chamber described in any one of claims 3-5.

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