A method, device, terminal device and storage medium for identifying abnormal water levels

Abstract

Embodiments of this application are applicable to the field of computer technology, and provide a method, device, terminal device, and storage medium for identifying abnormal water levels. The method includes: during the heating and washing stage of a washing device, collecting a plurality of temperature values in the heating and washing stage; if a water level abnormality instruction feedback by a water level detection device is received, determining a misjudgment condition associated with the washing action corresponding to the time when the water level abnormality instruction is received; if the plurality of temperature values meet the misjudgment condition, maintaining the execution of the washing process in the heating and washing stage. By this method, the accuracy of detecting abnormal water levels can be improved.

Description

Technical Field

[0001] The embodiments of the present application belong to the field of computer technology, and particularly relate to a high water level detection method. Background Art

[0002] Washing devices, such as dishwashers, baby bottle cleaners, etc., usually have a water level monitoring device installed at the bottom of their inner cavity to monitor the water level in the inner cavity. In the prior art, the water level monitoring device mostly judges the water level in the inner cavity by obtaining the bottom pressure value, that is, the greater the bottom pressure value obtained by the water level monitoring device, the higher the water level in the inner cavity judged by the water level monitoring device. When the water level monitoring device monitors that the water level exceeds the preset safe water level value, it will turn on the high water level switch to ensure that the water level will not exceed the safe range and guarantee the use safety of the washing device. However, since the water in the inner cavity needs to be heated during the operation of the washing device, and the inner cavity of the dishwasher is a closed space, the air pressure in the inner cavity of the dishwasher is likely to increase after the water in the inner cavity is heated, resulting in an abnormally high bottom pressure value, so that even the normal water level is misjudged as a high water level by the water level monitoring device. Summary of the Invention

[0003] In view of this, the embodiments of the present application provide a method for identifying abnormal water levels to improve the accuracy of detecting abnormal water levels.

[0004] The first aspect of the embodiments of the present application provides a method for identifying abnormal water levels, including:

[0005] During the heating and washing stage of the washing device, collect a plurality of temperature values in the heating and washing stage;

[0006] If a water level abnormality instruction feedback by the water level detection device is received, determine the misjudgment condition associated with the washing action corresponding to the time when the water level abnormality instruction is received;

[0007] If the plurality of temperature values meet the misjudgment condition, continue to execute the washing process of the heating and washing stage.

[0008] The second aspect of the embodiments of the present application provides an apparatus for identifying abnormal water levels, including:

[0009] A temperature value acquisition module, configured to collect a plurality of temperature values in the heating and washing stage during the heating and washing stage of the washing device;

[0010] A misjudgment condition determination module, configured to determine the misjudgment condition associated with the washing action corresponding to the time when the water level abnormality instruction is received if a water level abnormality instruction feedback by the water level detection device is received;

[0011] A misjudgment instruction execution module, configured to maintain the execution of the washing process in the heating and washing stage if the multiple temperature values meet the misjudgment condition.

[0012] A third aspect of the embodiments of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for identifying abnormal water level as described in the first aspect above is implemented.

[0013] A fourth aspect of the embodiments of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the method for identifying abnormal water level as described in the first aspect above is implemented.

[0014] A fifth aspect of the embodiments of the present application provides a computer program product. When the computer program product runs on a computer, the computer is enabled to execute the method for identifying abnormal water level as described in the first aspect above.

[0015] Compared with the prior art, the embodiments of the present application have the following advantages:

[0016] In the embodiments of the present application, when a high water level instruction sent by a water level monitoring device is received, by judging whether the temperature difference value in the device changes with time, it is further judged whether the high water level instruction sent by the water level monitoring device is a misjudgment. Since when the water level in the device changes, it will inevitably cause the temperature difference value to change. Therefore, when a high water level instruction is received, if the temperature difference value in the device does not change, then it can be considered that the increase in the bottom pressure value of the device at this time is not caused by the increase in the water level, and a misjudgment instruction can be sent to the water level monitoring device. If the temperature difference value in the device changes when a high water level instruction is received, then it can be determined that the increase in the bottom pressure value of the device at this time is caused by the increase in the water level, and a danger instruction can be sent to the water level monitoring device. In the embodiments of the present application, by further determining whether the high water level instruction is caused by the change in the water level through whether the temperature difference value changes, the probability that the normal water level is misjudged as a high water level by the water level monitoring device can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of a washing device provided by an embodiment of the present application

[0019] Figure 2 It is a schematic diagram of a method for identifying abnormal water level provided by an embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of the temperature curve during a single heating and washing process of a washing device provided by an embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of an implementation manner of S202 in a method for identifying abnormal water level provided by an embodiment of the present application;

[0022] Figure 5 It is a schematic diagram of a device for identifying abnormal water level provided by an embodiment of the present application;

[0023] Figure 6 It is a schematic diagram of a terminal device provided by an embodiment of the present application. Detailed implementation manners

[0024] In the following description, specific details such as specific system architectures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0025] In the prior art, a water level detection device is often installed at the bottom of the inner cavity of washing devices such as dishwashers and baby bottle cleaners. The water level detection device detects the water level by sensing the pressure at the bottom of the inner cavity of the washing device. For example Figure 1The figure shows a schematic diagram of a washing machine. Washing machines often include an inner chamber and a water tank. The washing machine can heat the water in the water tank. Once the water reaches a preset temperature, it can be used to spray the wash items in the inner chamber to achieve a good cleaning effect. The water tank can also be equipped with a temperature detection device to periodically collect the temperature of the water in the tank. The inner chamber of the washing machine can be used to place wash items to be cleaned. In the prior art, a water level detection device can be installed at the bottom of the inner chamber of the washing machine. This device can determine the water level in the inner chamber by collecting the pressure at the bottom of the inner chamber. The higher the water level in the inner chamber of the washing machine, the greater the pressure at the water level detection device at the bottom of the inner chamber. When the pressure at the bottom of the inner chamber exceeds the preset pressure threshold of the water level detection device, the high water level switch within the water level detection device opens. However, since washing machines often need to heat the water in the inner chamber during the heat washing process, the inner chamber of the washing machine is a relatively closed space during this process. During the heated washing process, the air pressure within the sealed chamber of the washing machine increases, causing the pressure at the bottom of the chamber to be higher. This can cause a reasonable water level to be misjudged as high. Therefore, improvements are needed to address the problem of high-water-level switch misjudgment caused by high temperatures.

[0026] The technical solution of this application is described below through specific embodiments.

[0027] Reference Figure 2 , which shows a schematic diagram of a method for identifying water level anomalies provided by an embodiment of the present application, which may specifically include the following steps:

[0028] S201. When a washing device is in a heating washing stage, collecting multiple temperature values in the heating washing stage;

[0029] In the embodiment of the present application, after the washing device receives a washing instruction initiated by the user, it can start pre-washing the washing object in the washing device. After the pre-washing stage ends, the washing device can start entering the heating washing stage. After entering the heating washing stage, the washing device can start to fill with water, and at the same time, it can turn on the temperature detection device loaded in the washing device. The heating device in the washing device can start heating the water in the device cavity. The temperature detection device can start collecting the temperature values of the water in the device cavity. The collection time interval of multiple temperature values can be fixed, that is, the temperature detection device can collect a temperature value at the same time interval t. The recognition device in the washing device can store the multiple temperature values collected by the temperature detection device and continuously update the real-time temperature value according to the stored multiple temperature values. During the heating washing process, the temperature detection device can continuously collect the temperature values of the water in the device cavity, and the recognition device in the washing device can draw a temperature curve according to the multiple temperature values collected by the temperature detection device.

[0030] As Figure 3 shown, it is the temperature curve of the washing device during a heating washing process. In the figure, the vertical axis is the temperature value and the horizontal axis is the collection time. The starting time of the horizontal axis in the figure is the time when the washing device receives the heating washing instruction initiated by the user and starts to enter the heating washing stage. At this time, the water temperature of the incoming water is 8.5 degrees Celsius, and the temperature of the device cavity is 15 degrees Celsius. As can be seen from the figure, during a heating washing stage of the washing device, the water in the device cavity can experience the processes of heating up and cooling down. During a heating washing process, the washing device can at least perform a heating action and a cleaning action. When the washing device performs the heating action, it can heat the water in the device cavity until the preset temperature. After the washing device enters the heating washing stage, it can perform the cleaning action while performing the heating action. After heating the water in the device cavity to the preset temperature, the washing device can stop the heating action and continue to perform the cleaning action. Therefore, during a heating washing process of the washing device, the water in the device cavity can experience the heating-up process and the cooling-down process.

[0031] S202. If a water level anomaly instruction is fed back by the water level detection device, determine the misjudgment condition associated with the washing action corresponding to the time when the water level anomaly instruction is received;

[0032] In the embodiment of the present application, after the washing device starts to fill with water, the water level detection device at the bottom of the device cavity can start collecting the pressure value at the bottom of the device cavity. According to the collected bottom pressure value, the water level detection device can monitor whether the water level in the washing device cavity is within the preset water level threshold value. The water level detection device may include a high water level switch. When the bottom pressure value collected by the water level detection device is greater than the preset bottom pressure threshold value, it can be considered that there is too much water in the cavity and the water level exceeds the water level threshold value. At this time, the high water level switch in the water level detection device can be turned on, and the water level detection device can generate a water level abnormality instruction. The water level detection device can send the water level abnormality instruction to the recognition device. The recognition device can further determine whether the received water level abnormality instruction is a misjudgment based on the temperature value of the water in the device cavity. After receiving the water level abnormality instruction, the recognition device can determine the current washing action of the washing device. The washing device may include multiple washing actions such as a door opening action, a heating action, and a cleaning action during the heating washing process. Among them, when the washing device performs the heating action, it can heat the water in the device cavity. When the washing device performs the cleaning action, it can perform actions such as rinsing, flushing, and polishing on the washing object in the washing device according to the preset washing program. During the heating washing process of the washing device, the washing device can obtain the corresponding image of the washing object after pre-washing. According to the obtained corresponding image, the washing device can determine the current second predicted turbidity value of the washing object. If the second predicted turbidity value is higher than the preset second turbidity value threshold, it proves that the pre-washing process has not achieved the expected effect and the washing object has not been cleaned thoroughly. Since this situation may be caused by the user placing the washing object in an inappropriate position when placing it, such as the washing objects being stacked and blocking each other. Therefore, when the device detects that the second predicted turbidity value in the washing device is higher than the preset second turbidity value threshold, it can perform the door opening action. At this time, the user can open the washing device and re-place the washing object. After determining the current washing action, the recognition device can further determine the misjudgment condition corresponding to the washing action. The misjudgment condition can be pre-set by technicians according to different washing actions, and each washing action can have its corresponding misjudgment condition. By judging whether the multiple collected temperature values meet the misjudgment condition, it can be further confirmed whether the current water level in the washing device cavity really exceeds the preset water level threshold value. If the multiple collected temperature values meet the misjudgment condition, the recognition device can consider that the received water level abnormality instruction is caused by the wrong judgment of the water level detection device, that is, the water level in the device cavity does not exceed the preset water level threshold value. If the multiple collected temperature values do not meet the misjudgment condition, the recognition device can consider that the received water level abnormality instruction is indeed caused by abnormal water intake in the cavity.

[0033] In a possible implementation manner of the embodiment of the present application, after receiving the water level abnormality instruction, the identification device can obtain the location information of the washing device through the positioning device in the washing device. According to the obtained location information, the water quality information of the location where the washing device is located can be further determined. The water quality information associated with the location information can be pre-set by technicians or set by users themselves. Through the water quality information associated with the location information, the water density index of the water used by the washing device can be determined. Among them, the water quality information can include various water quality detection items such as visible substances in water, turbidity, cation concentration, and the service life of water pipes. The values of visible substances in water, turbidity, cation concentration, etc. can adopt the tap water quality data published in the location where the washing device is located. The service life of the water pipe can be filled in by the user according to their own situation. In a possible implementation manner of the embodiment of the present application, the water density index can be expressed by the total hardness of water. Since tap water needs to be transmitted through water pipes from the factory to the washing device, and in daily use, the waterworks rarely maintains the water pipes. Thus, it can be seen that during the transmission of tap water through water pipes, the total hardness of tap water may increase due to reasons such as leakage or oxidation of the water pipes themselves. Therefore, when calculating the water density index of water, it can be calculated according to the service life of the water pipe. Further, if the cation concentration in the water quality information is C milligrams per liter and the service life of the water pipe is V years, then the calculation formula for the water density index can be X = C * V * 100.08 * 1000. The water level abnormality trigger threshold of the washing device can be set according to the water density index of the water in the location where the washing device is located. The water level abnormality trigger threshold is used to generate a water level abnormality instruction when the water level detection device detects that the pressure value is greater than the water level abnormality trigger threshold. If the water density index of the water in a certain location is higher than the normal value, it can be understood that when the water intake is the same, the pressure value at the bottom of the inner cavity of the washing device located in that location is larger. Therefore, the water level abnormality trigger threshold of the washing device can be appropriately increased. If the water density index of the water in a certain location is lower than the normal value, it can be understood that when the water intake is the same, the pressure value at the bottom of the inner cavity of the washing device located in that location is smaller. Therefore, the water level abnormality trigger threshold of the washing device can be appropriately decreased.

[0034] For example, through the positioning device, it is obtained that the location of a certain washing device is Tianjin. Since Tianjin is located at the confluence and estuary of the five major tributaries of the Haihe River, namely the South Canal, Ziya River, Daqing River, Yongding River, and North Canal, the water quality information of Tianjin is that there is a lot of sediment from the Yellow River in the water. It can be determined that the water density index of the water used by this washing device is relatively high. Therefore, the water level abnormality trigger threshold of this washing device can be appropriately increased.

[0035] In a possible implementation manner of the embodiment of the present application, after receiving the water level anomaly instruction, the recognition device can obtain an object image corresponding to the washing object in the washing device through the imaging device in the washing device. According to the obtained object image, the predicted turbidity value corresponding to the washing object in the washing device can be further determined by means of image processing. The water level anomaly trigger threshold of the washing device can be set according to the water density index of the location where the washing device is located and the predicted turbidity value of the washing object. If the water density index of the water in a certain place is higher than the normal value and / or the predicted turbidity value corresponding to the washing object is higher, it can be understood that when the water inflow is the same, the pressure value at the bottom of the inner cavity of the washing device is larger, so the water level anomaly trigger threshold of the washing device can be appropriately increased. If the water density index of the water in a certain place is lower than the normal value and / or the predicted turbidity value corresponding to the washing object is lower, it can be understood that when the water inflow is the same, the pressure value at the bottom of the inner cavity of the washing device is smaller, so the water level anomaly trigger threshold of the washing device can be appropriately decreased.

[0036] After receiving the water level anomaly instruction, the embodiment of the present application can first determine the water quality information of the location where the washing device is located through the location information of the washing device. Through a preset formula, the water density index of the water used by the washing device can be calculated. The water level anomaly trigger threshold can be adjusted according to the water density index. Since the water quality varies greatly in different places, when the water inflow is the same, different water density indexes may also cause different pressure values at the bottom of the inner cavity of the device. Adjusting the water level anomaly trigger threshold according to the water density index can further improve the detection accuracy of the water level detection device and reduce the possibility of misjudgment of the water level detection device. In addition, since different degrees of dirt are likely to adhere to the washing object in the washing device, after the device is filled with water, the dirt on the washing object can dissolve into the water in the inner cavity of the device, thereby increasing the weight of the water. Therefore, by obtaining the object image, the corresponding predicted turbidity value can be determined according to the object image, and the water level anomaly trigger threshold can be further adjusted through the predicted turbidity value, which can reduce the situation that the water level detection device misjudges the high water level due to excessive dirt on the washing object.

[0037] In a possible implementation manner of the embodiment of the present application, as Figure 4 shown, in S102, when determining the misjudgment conditions associated with the washing action corresponding to receiving the water level anomaly instruction, the following specific steps S2021-S2024 may be included:

[0038] S2021. Determine a first temperature difference value and a second temperature difference value according to the multiple temperature values, and a first acquisition time period of the first temperature difference value is earlier than a second acquisition time period of the second temperature difference value;

[0039] In an embodiment of the present application, after receiving a water level anomaly instruction, the identification device can obtain a plurality of temperature values collected by the temperature detection device. According to the obtained plurality of temperature values, the identification device can determine a first temperature difference value and a second temperature difference value, where the interval time between the first temperature difference value and the second temperature difference value is the same. The plurality of temperature values used to determine the first temperature difference value can be collected by the temperature detection device during a first collection time period, and the plurality of temperature values used to determine the second temperature difference value can be collected by the temperature detection device during a second collection time period, where the first collection time period can be earlier than the second collection time period.

[0040] In a possible implementation manner of an embodiment of the present application, if the identification device determines that the washing action of the current washing device is a heating action, before determining the first temperature difference value and the second temperature difference value, it can first determine the lowest water temperature according to the plurality of temperature values collected by the temperature detection device. By determining the lowest water temperature, it can further determine which temperature values to use to determine the first temperature difference value and the second temperature difference value. The identification device can obtain a plurality of temperature values during the heating washing process and set the smallest temperature value among the plurality of temperature values as the lowest water temperature value. The identification device can obtain the real-time temperature value collected by the temperature detection device and compare the obtained real-time temperature value with the lowest water temperature value. If the real-time temperature value is less than the lowest water temperature value, the identification device can update the lowest water temperature value to the real-time temperature value. If the real-time temperature value is greater than or equal to the lowest water temperature value, it continues to obtain the real-time temperature value for comparison. When the maintenance time of the lowest water temperature value exceeds a preset duration threshold, that is, when a plurality of consecutive real-time temperature values are greater than or equal to the lowest water temperature value, it can be considered that the lowest water temperature value has been determined. After the lowest water temperature value is determined, the collection time of the lowest water temperature value can be further determined. According to the lowest water temperature collection time, the identification device can obtain a plurality of temperature values whose collection times are later than the lowest water temperature collection time and define the plurality of temperature values whose collection times are later than the lowest water temperature collection time as the temperature rise values. Thus, the identification device can obtain a plurality of temperature rise values of the washing device during the heating action. According to the obtained plurality of temperature rise values, the identification device can determine the first temperature difference value and the second temperature difference value during the heating action process, where the interval time between the first temperature difference value and the second temperature difference value is the same. The plurality of temperature values used to determine the first temperature difference value can be collected by the temperature detection device during a first collection time period, and the plurality of temperature values used to determine the second temperature difference value can be collected by the temperature detection device during a second collection time period, where the first collection time period can be earlier than the second collection time period.

[0041] Such as Figure 3As shown, it is the temperature curve of the washing device during a heating and washing process. In the figure, the vertical axis represents the temperature value, and the horizontal axis represents the acquisition time. Since the water entering the inner cavity of the washing device is cold water and the washing device is in a cold state when the water enters, after the water enters the inner cavity of the washing device, it can experience a short-term temperature drop. At this time, the water in the inner cavity of the washing device shows a downward trend in temperature. Therefore, in this stage, the temperature value of the water is in an unstable state. If the water temperature value at this time is used for judgment, it is easy to cause misjudgment of the program. After the water inlet of the washing device is completed, since no more cold water enters, the temperature value of the water can start to rise steadily. In the stage of stable temperature rise, since the inner cavity of the washing device is a sealed and heat-insulated environment, the rising rate of the temperature value of the water in the inner cavity in this stage is related to the amount of water in the inner cavity. Therefore, during the heating operation, the lowest water temperature and the lowest water temperature acquisition time can be determined first, and the temperature values collected in the stable temperature rise stage can be used for judgment, which can further reduce the possibility of misjudgment of the device.

[0042] S2022. If the first temperature difference value is equal to the second temperature difference value, it is recognized that the multiple temperature values meet the misjudgment condition;

[0043] In the embodiment of the present application, after the recognition device determines the first temperature difference value and the second temperature difference value, it can first judge whether the first temperature difference value is equal to the second temperature difference value. Since the inner cavity of the washing device is a sealed and heat-insulated environment, the temperature change rate of the water in the inner cavity is basically related to the amount of water in the inner cavity. If the first temperature difference value is equal to the second temperature difference value, it can be considered that the temperature change rate of the water in the inner cavity does not change at this time, and then it can be considered that the amount of water in the inner cavity does not change. Therefore, if the first temperature difference value is equal to the second temperature difference value, it can be considered that the multiple temperature values obtained meet the preset misjudgment condition, that is, it can be considered that the water level abnormal instruction is caused by the misjudgment of the water level by the water level detection device.

[0044] S2023. If the first temperature difference value is not equal to the second temperature difference value, determine the temperature difference value according to the first temperature difference value and the second temperature difference value;

[0045] In the embodiment of the present application, after the recognition device determines the first temperature difference value and the second temperature difference value, if the first temperature difference value is not equal to the second temperature difference value, the temperature difference value can be determined by calculating the difference between the first temperature difference value and the second temperature difference value. In a possible implementation manner of the embodiment of the present application, if the recognition device determines that the current washing operation of the washing device is a door-opening operation or a cleaning operation, the temperature difference value can be the absolute value of the difference between the first temperature difference value and the second temperature difference value.

[0046] In a possible implementation manner of the embodiment of the present application, if the recognition device determines that the washing action of the current washing device is a heating action, before calculating the temperature difference value, the recognition device may first determine whether the first temperature difference value is greater than the second temperature difference value. When the washing device performs the heating action, since the inner cavity of the washing device is a sealed and heat-insulated environment, the rising rate of the temperature value of the water in the inner cavity is related to the amount of water in the inner cavity at this stage. Since the water during water inlet is cold water, during the heating action of the washing device, if an abnormal water inlet situation occurs, because the incoming water is cold water and the amount of water in the inner cavity will increase, the rising rate of the water temperature can decrease at this time, that is, the situation where the first temperature difference value is greater than the second temperature difference value appears. If the first temperature difference value is greater than the second temperature difference value, it can be considered that the rising rate of the water temperature has decreased. Therefore, if the first temperature difference value is greater than the second temperature difference value during the heating action, it can be directly recognized that the current water level abnormal instruction judgment is correct, and there is an abnormal water inlet situation in the inner cavity of the washing device.

[0047] S2024. If the temperature difference value is less than or equal to the temperature difference change threshold, it is recognized that the multiple temperature values meet the misjudgment condition.

[0048] In the embodiment of the present application, after the recognition device determines the temperature difference value through the first temperature difference value and the second temperature difference value, the recognition device may determine whether the current temperature difference value is greater than the temperature difference change threshold. If it is determined that the temperature difference value is less than or equal to the preset temperature difference change threshold, it can be considered that the difference between the first temperature difference value and the second temperature difference value is not large, that is, the first temperature difference value and the second temperature difference value change within a small threshold range. At this time, it can be recognized that the multiple temperature values meet the misjudgment condition. That is, the amount of water in the inner cavity of the device has not increased, and the high water level switch is opened due to the misoperation caused by the increased air pressure. If it is determined that the temperature difference value is greater than the preset temperature difference change threshold, it can be considered that the difference between the first temperature difference value and the second temperature difference value is relatively large, that is, the multiple temperature values do not meet the misjudgment condition. Since the inner cavity of the washing device is a sealed and heat-insulated environment, the change rate of the temperature value of the water in the inner cavity is basically related to the amount of water in the inner cavity. Therefore, it can be considered that the high water level switch is opened due to abnormal water inlet at this time, that is, the water level abnormal instruction is not misjudged.

[0049] In a possible implementation of the embodiment of the present application, if the recognition device determines that the current washing action of the washing device is a cleaning action or a door-opening action, after determining that the current temperature difference is greater than the temperature difference change threshold, it can further determine whether the current temperature difference is greater than a preset danger threshold. If the temperature difference is greater than the danger threshold, it can be considered that the temperature difference value has changed significantly. Since the inner cavity of the washing device is a sealed and heat-insulated environment, the change rate of the water temperature value in the inner cavity is basically related to the water volume in the inner cavity. Therefore, it can be considered that a large amount of water has entered the inner cavity of the device, and the abnormal water inflow may affect the normal operation of the washing device. The recognition device can correctly recognize the current water level abnormality instruction, and there is a situation of a large amount of water entering the inner cavity of the washing device. The recognition device can control the washing device to stop executing the current heating action. At this time, the recognition device can generate a drainage instruction and send the drainage instruction to the drainage device of the washing device to control the drainage device to drain water. When the water level drains back to the reasonable range, the high water level switch can be closed, and the washing device can resume the corresponding washing action. If the temperature difference is less than or equal to the danger threshold, it can be considered that the temperature difference value has changed within a small range. Since the inner cavity of the washing device is a sealed and heat-insulated environment, the change rate of the water temperature value in the inner cavity is basically related to the water volume in the inner cavity. Therefore, it can be considered that a small amount of water has entered the inner cavity of the device. At this time, the abnormal water inflow is not enough to reach the danger value and will not affect the normal operation of the washing device. Therefore, the recognition device can recognize that multiple temperature values meet the misjudgment condition.

[0050] S203. If the multiple temperature values meet the misjudgment condition, then maintain the execution of the washing process in the heating and washing stage.

[0051] In the embodiment of the present application, if multiple temperature values meet the misjudgment condition, it can be considered that the water level abnormality instruction is caused by the misjudgment of the water level by the water level detection device, that is, the increase in the bottom pressure value of the inner cavity of the device is not caused by the increase in the water volume in the inner cavity, but by the increase in the air pressure in the inner cavity due to heating the water in the sealed and heat-insulated environment. Therefore, after multiple temperature values meet the misjudgment condition, the washing device can continue to execute the washing process in the heating and washing stage.

[0052] In a possible implementation, after S202, it may further include: if multiple temperature values do not meet the misjudgment condition, it can be considered that the water level abnormality instruction is caused by abnormal water inflow into the inner cavity of the device, and the recognition device can control the washing device to stop executing the current heating action. At this time, the recognition device can generate a drainage instruction and send the drainage instruction to the drainage device of the washing device to control the drainage device to drain water. When the water level drains back to the reasonable range, the high water level switch can be closed, and the washing device can re-enter the heating action.

[0053] In an embodiment of the present application, after receiving the water level anomaly instruction sent by the water level detection device, the recognition device can first obtain the water density index of the water in the device cavity and the turbidity value of the washing object, and adjust the water level anomaly trigger threshold of the water level detection device according to the water density index and the turbidity value. Adjusting the water level anomaly trigger threshold by the water density index and the turbidity value can avoid the misjudgment of high water level caused by the large water density in the location where the washing device is located. At the same time, it can also avoid the misjudgment of high water level caused by the large amount of dirt in the water due to the high turbidity value of the washing device. By adjusting these two indicators, the situation of high-level misjudgment can be greatly reduced. In addition, in an embodiment of the present application, if the water level anomaly still occurs after adjusting the water level anomaly trigger threshold, the recognition device can further determine whether the current high water level judgment of the water level detection device is normal by obtaining multiple temperature values during the heating washing process of the washing device and making a logical judgment based on the multiple temperature values. Through the three steps in the embodiment of the present application, the probability of misjudgment of high water level during the heating washing process of the washing device can be greatly avoided, and the operation efficiency of the device can be significantly improved.

[0054] It should be noted that the magnitudes of the sequence numbers of the above steps in the embodiments do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0055] Referring to Figure 5 , a schematic diagram of an identification device for water level anomaly provided by an embodiment of the present application is shown, which may specifically include a temperature value acquisition module 501, a misjudgment condition determination module 502, and a misjudgment instruction execution module 503, where:

[0056] The temperature value acquisition module 501 is configured to acquire multiple temperature values during the heating washing stage when the washing device is in the heating washing stage;

[0057] The misjudgment condition determination module 502 is configured to determine the misjudgment condition associated with the washing action corresponding to the received water level anomaly instruction if a water level anomaly instruction feedback by the water level detection device is received;

[0058] The misjudgment instruction execution module 503 is configured to maintain the execution of the washing process in the heating washing stage if the multiple temperature values meet the misjudgment condition.

[0059] The misjudgment condition determination module 502 can also be used to determine a first temperature difference value and a second temperature difference value according to the multiple temperature values, where a first acquisition time period of the first temperature difference value is earlier than a second acquisition time period of the second temperature difference value; if the first temperature difference value is equal to the second temperature difference value, it is recognized that the multiple temperature values meet the misjudgment condition; if the first temperature difference value is not equal to the second temperature difference value, a temperature difference value is determined according to the first temperature difference value and the second temperature difference value; if the temperature difference value is less than or equal to the temperature change threshold, it is recognized that the multiple temperature values meet the misjudgment condition.

[0060] The misjudgment condition determination module 502 can also be used to, if the washing action is a heating action, determine a lowest water temperature value according to the multiple temperature values; determine multiple temperature rise values; an acquisition time of the temperature rise values is later than an acquisition time of the lowest water temperature value; determine the first temperature difference value and the second temperature difference value according to the multiple temperature rise values.

[0061] The misjudgment condition determination module 502 can also be used to, if the current washing action is a heating action, determine whether the first temperature difference value is greater than the second temperature difference value; if the first temperature difference value is greater than the second temperature difference value, stop executing the heating action and control a drainage device to drain water.

[0062] The misjudgment condition determination module 502 can also be used to, if the current washing action is the cleaning action or a door opening action, determine whether the temperature difference value is greater than a preset danger threshold; if the temperature difference value is greater than the danger threshold, stop executing the heating action and control the drainage device to drain water; if the temperature difference value is less than or equal to the danger threshold, it is recognized that the multiple temperature values meet the misjudgment condition.

[0063] The misjudgment condition determination module 502 can also be used to obtain location information of the washing device, determine a water density index based on water quality information associated with the location information; set a water level anomaly trigger threshold based on the water density index; the water level anomaly trigger threshold is used to generate the water level anomaly instruction when a pressure value detected by the water level detection device is greater than the water level anomaly trigger threshold.

[0064] The misjudgment condition determination module 502 can also be used to obtain an object image corresponding to a washing object in the washing device; determine a predicted turbidity value of the washing object based on the object image; set the water level anomaly trigger threshold according to the predicted turbidity value and the water density index.

[0065] For the apparatus embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for the related parts, reference can be made to the description in the method embodiment section.

[0066] Refer toFigure 6 , showing a schematic diagram of a terminal device provided by an embodiment of the present application. As Figure 6 shown, the terminal device 600 in the embodiment of the present application includes: a processor 610, a memory 620, and a computer program 621 stored in the memory 620 and executable on the processor 610. When the processor 610 executes the computer program 621, the steps in each embodiment of the above-mentioned water level anomaly recognition method are implemented, for example Figure 2 the steps S201 to S203 shown. Alternatively, when the processor 610 executes the computer program 621, the functions of each module / unit in each device embodiment above are implemented, for example Figure 5 the functions of the modules 501 to 503 shown.

[0067] Exemplarily, the computer program 621 can be divided into one or more modules / units. The one or more modules / units are stored in the memory 620 and executed by the processor 610 to complete the present application. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and the instruction segments can be used to describe the execution process of the computer program 621 in the terminal device 500. For example, the computer program 621 can be divided into a temperature value acquisition module, a misjudgment condition determination module, and a misjudgment instruction execution module. The specific functions of each module are as follows:

[0068] The temperature value acquisition module 501 is used to acquire a plurality of temperature values in the heating and washing stage while the washing device is in the heating and washing stage;

[0069] The misjudgment condition determination module 502 is used to determine the misjudgment condition associated with the washing action corresponding to when the water level anomaly instruction is received if the water level anomaly instruction fed back by the water level detection device is received;

[0070] The misjudgment instruction execution module 503 is used to maintain the execution of the washing process in the heating and washing stage if the plurality of temperature values meet the misjudgment condition.

[0071] The terminal device 600 may include, but is not limited to, a processor 610 and a memory 620. Those skilled in the art can understand that Figure 6 this is only an example of the terminal device 600 and does not constitute a limitation on the terminal device 600. It may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, the terminal device 600 may further include input / output devices, network access devices, buses, etc.

[0072] The processor 610 may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, and the like.

[0073] The memory 620 may be an internal storage unit of the terminal device 600, such as the hard disk or memory of the terminal device 600. The memory 620 may also be an external storage device of the terminal device 600, such as a plug-in hard disk equipped on the terminal device 600, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, and so on. Further, the memory 620 may also include both the internal storage unit and the external storage device of the terminal device 600. The memory 620 is used to store the computer program 621 and other programs and data required by the terminal device 600. The memory 620 may also be used to temporarily store data that has been output or is to be output.

[0074] An embodiment of the present application also discloses a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for identifying abnormal water levels described in the foregoing various embodiments is implemented.

[0075] An embodiment of the present application also discloses a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the method for identifying abnormal water levels described in the foregoing various embodiments is implemented.

[0076] An embodiment of the present application also discloses a computer program product, which when running on a computer causes the computer to execute the method for identifying abnormal water levels described in the foregoing various embodiments.

[0077] The foregoing embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A method for identifying abnormal water levels, characterized in that, Including: During the heating and washing stage of the washing device, collect multiple temperature values in the heating and washing stage; Obtain the location information of the washing device, and determine the water density index based on the water quality information associated with the location information; the water quality information includes cation concentration; Obtain the object image corresponding to the object to be washed in the washing device; Determine the predicted turbidity value of the object to be washed based on the object image; Set the water level anomaly trigger threshold according to the predicted turbidity value and the water density index; the water level anomaly trigger threshold is used to generate a water level anomaly instruction when the water level detection device detects that the pressure value is greater than the water level anomaly trigger threshold; If a water level anomaly instruction feedback by the water level detection device is received, determine the misjudgment condition associated with the washing action corresponding to the time when the water level anomaly instruction is received; If the multiple temperature values meet the misjudgment condition, maintain the execution of the washing process in the heating and washing stage.

2. The method according to claim 1, characterized in that The determination of the misjudgment condition associated with the washing action corresponding to the time when the water level anomaly instruction is received includes: Determine a first temperature difference value and a second temperature difference value according to the multiple temperature values, and the first acquisition time period of the first temperature difference value is earlier than the second acquisition time period of the second temperature difference value; If the first temperature difference value is equal to the second temperature difference value, identify that the multiple temperature values meet the misjudgment condition; If the first temperature difference value is not equal to the second temperature difference value, determine the temperature difference value according to the first temperature difference value and the second temperature difference value; If the temperature difference value is less than or equal to the temperature difference change threshold, identify that the multiple temperature values meet the misjudgment condition.

3. The method according to claim 2, wherein Before determining the first temperature difference value and the second temperature difference value according to the multiple temperature values, it includes: If the washing action is a heating action, determine the lowest water temperature value according to the multiple temperature values; Determine multiple rising temperature values; the acquisition time of the rising temperature values is later than the acquisition time of the lowest water temperature value; Determine the first temperature difference value and the second temperature difference value according to the multiple rising temperature values.

4. The method according to claim 2, characterized in that The determination of the misjudgment condition associated with the washing action corresponding to the time when the water level anomaly instruction is received further includes: If the current washing action is a heating action, judge whether the first temperature difference value is greater than the second temperature difference value; If the first temperature difference value is greater than the second temperature difference value, stop executing the heating action and control the drainage device to drain water.

5. The method according to claim 2, characterized in that, The temperature difference value is the absolute value of the difference between the first temperature difference value and the second temperature difference value; the determination of the misjudgment condition associated with the washing action corresponding to the time when the water level anomaly instruction is received further includes: If the current washing action is a cleaning action or a door opening action, judge whether the temperature difference value is greater than a preset danger threshold; If the temperature difference value is greater than the danger threshold, stop executing the heating action and control the drainage device to drain water; If the temperature difference value is less than or equal to the danger threshold, identify that the multiple temperature values meet the misjudgment condition.

6. An apparatus for identifying abnormal water levels, characterized in that, Including: A temperature value acquisition module, configured to collect multiple temperature values in the heating and washing stage during the heating and washing stage of the washing device; A misjudgment condition determination module, configured to obtain the location information of the washing device, determine a water density index based on the water quality information associated with the location information; the water quality information includes cation concentration; obtain an object image corresponding to the washing object in the washing device; determine a predicted turbidity value of the washing object based on the object image; set a water level anomaly trigger threshold according to the predicted turbidity value and the water density index; the water level anomaly trigger threshold is used to generate a water level anomaly instruction when a pressure value detected by a water level detection device is greater than the water level anomaly trigger threshold; if a water level anomaly instruction fed back by the water level detection device is received, determine a misjudgment condition associated with the washing action corresponding to the time when the water level anomaly instruction is received. A misjudgment instruction execution module, configured to, if the multiple temperature values meet the misjudgment condition, maintain the execution of the washing process in the heating washing stage.

7. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the water level anomaly recognition method according to any one of claims 1-5.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the water level anomaly recognition method according to any one of claims 1-5.

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