Control method, home appliance, control device, and storage medium

Abstract

Embodiments of the present application disclose a control method, an electrical appliance, a control device and a storage medium, wherein the method is applied to an electrical appliance comprising a drying device; the method comprises: obtaining a temperature of the drying device in real time during operation; determining a change parameter of the temperature within a first preset time; judging whether an article in the drying device is wrapped based on the change parameter, and obtaining a judgment result.

Description

Technical Field

[0001] This invention relates to the field of smart appliances, and more particularly to control methods, home appliances, control devices, and storage media. Background Technology

[0002] Currently, most clothes dryers on the market aim to dry clothes completely. However, in reality, due to the dryer's continuous rotation, clothes often become tangled and wrapped up, preventing them from fully drying. Although some dryers attempt to address this issue by using timed reverse rotations, the frequency is too low to completely prevent this problem. Currently, there is no effective solution to this problem. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a control method, a household appliance, a control device, and a storage medium to solve at least one problem existing in the prior art.

[0004] To achieve the above objectives, the technical solution of this invention is implemented as follows:

[0005] This invention provides a control method applied to household appliances including a drying device; the method includes:

[0006] The temperature of the drying device during operation can be obtained in real time.

[0007] Determine the temperature change parameters within a first preset time period;

[0008] Based on the changing parameters, it is determined whether the items inside the drying device are wrapped up, and the determination result is obtained.

[0009] In the above scheme, the method further includes:

[0010] If the judgment result indicates that the items in the drying device are wrapped up, the operating state of the drying device is obtained, and the operating state is changed within a second preset time to shake out the wrapped items in the drying device.

[0011] In the above scheme, the method further includes:

[0012] The first operating time of the drying device is obtained;

[0013] Determine whether the first running time is greater than or equal to a first preset threshold;

[0014] If the first running time is greater than or equal to the first preset threshold, the temperature change parameters of the drying device during operation are determined.

[0015] In the above scheme, the changing parameter is at least one of the following: the slope of the temperature change within the first preset time period, the difference between the highest temperature and the lowest temperature, and the ratio of the highest temperature to the lowest temperature.

[0016] In the above scheme, determining the temperature change parameter within a first preset time period includes:

[0017] The drying device obtains multiple temperatures within the first preset time period;

[0018] The polynomial function is determined based on the multiple temperatures;

[0019] Differentiate the polynomial function to determine the slope variation parameter.

[0020] In the above scheme, determining the temperature change parameter within a first preset time period includes:

[0021] The drying device obtains multiple temperatures within the first preset time period;

[0022] Determine the highest and lowest temperatures among the plurality of temperatures;

[0023] Based on the highest and lowest temperatures, determine the difference between the highest and lowest temperatures or the ratio of the highest to the lowest temperatures.

[0024] In the above scheme, the method further includes:

[0025] Based on the difference between the highest and lowest temperatures, the slope of the temperature change within the first preset time period is determined.

[0026] In the above scheme, the step of determining whether the items in the drying device are wrapped based on the changing parameters and obtaining the determination result includes:

[0027] Determine whether the changed parameter is greater than a second preset threshold;

[0028] If the changing parameter is greater than or equal to the second preset threshold, a determination is made that the items in the drying device are wrapped.

[0029] If the changing parameter is less than the second preset threshold, it is determined that the items in the drying device will not be wrapped.

[0030] In the above scheme, the step of determining whether the items in the drying device are wrapped based on the changing parameters and obtaining the determination result includes:

[0031] Obtain two consecutive changing parameters;

[0032] Determine the ratio of the two consecutive changing parameters;

[0033] Determine whether the ratio is greater than or equal to a third preset threshold;

[0034] If the ratio is greater than or equal to the third preset threshold, a determination is made that the items in the drying device have been wrapped.

[0035] In the above scheme, the ratio includes the quotient of the absolute values ​​of the larger and smaller of the two consecutive changing parameters.

[0036] In the above scheme, if the determination result indicates that the items inside the drying device have become wrapped, the method further includes:

[0037] The second operating time of the drying device is obtained;

[0038] Determine whether the second running time meets the preset reversal time point of the drying device;

[0039] If the second operating time meets the preset reversal time point of the drying device, the drying device is controlled to reverse for a third preset time; the third preset time is less than the second preset time.

[0040] In the above scheme, the operating state includes: the direction of rotation and / or the magnitude of the rotation speed of the drying device;

[0041] Changing the operating state within the second preset time period includes:

[0042] The direction and / or speed of the drying device are changed within the second preset time period.

[0043] In the above scheme, the direction of rotation of the drying device includes forward rotation and reverse rotation;

[0044] When the drying device is rotating in a forward direction, changing the rotation direction of the drying device within a second preset time period includes:

[0045] Within the second preset time period, the drying device is changed from forward rotation to reverse rotation.

[0046] This invention provides a control device applied to a household appliance including a drying device; the device includes: an acquisition unit, a determination unit, and a judgment unit;

[0047] The obtaining unit is used to obtain the temperature of the drying device in real time during operation;

[0048] The determining unit is used to determine the temperature change parameters within a first preset time period;

[0049] The judgment unit is used to determine whether the items in the drying device are wrapped based on the changing parameters, and to obtain a judgment result.

[0050] In the above scheme, the judgment unit is further configured to, when the judgment result indicates that the items in the drying device have become wrapped, obtain the operating state of the drying device, and change the operating state within a second preset time period to shake off the wrapped items in the drying device.

[0051] In the above scheme, the obtaining unit is also used to obtain the first operating time of the drying device;

[0052] The judgment unit is also used to determine whether the first running time is greater than or equal to a first preset threshold.

[0053] The determining unit is further configured to determine the temperature change parameters of the drying device during operation when the first running time is greater than or equal to the first preset threshold.

[0054] In the above scheme, the changing parameter is at least one of the following: the slope of the temperature change within the first preset time period, the difference between the highest temperature and the lowest temperature, and the ratio of the highest temperature to the lowest temperature.

[0055] In the above scheme, the determining unit is further configured to obtain multiple temperatures of the drying device within the first preset time; determine a polynomial function based on the multiple temperatures; and determine the slope change parameter by differentiating the polynomial function.

[0056] In the above scheme, the determining unit is further configured to obtain multiple temperatures of the drying device within the first preset time period; determine the highest temperature and the lowest temperature among the multiple temperatures; and determine the difference between the highest temperature and the lowest temperature or the ratio of the highest temperature to the lowest temperature based on the highest temperature and the lowest temperature.

[0057] In the above scheme, the determining unit is further configured to determine the slope of the temperature change within the first preset time period based on the difference between the determined highest temperature and the lowest temperature.

[0058] In the above scheme, the judgment unit is further used to determine whether the changing parameter is greater than a second preset threshold; if the changing parameter is greater than or equal to the second preset threshold, determine the judgment result that the items in the drying device are wrapped; if the changing parameter is less than the second preset threshold, determine the judgment result that the items in the drying device are not wrapped.

[0059] In the above scheme, the judgment unit is further configured to obtain two consecutive changing parameters; determine the ratio of the two consecutive changing parameters; determine whether the ratio is greater than or equal to a third preset threshold; and, if the ratio is greater than or equal to the third preset threshold, determine the judgment result that the items in the drying device are wrapped.

[0060] In the above scheme, the ratio includes the quotient of the absolute values ​​of the larger and smaller of the two consecutive changing parameters.

[0061] In the above scheme, if the judgment result indicates that the items in the drying device are wrapped up, the device further includes a control unit;

[0062] The obtaining unit is also used to obtain the second operating time of the drying device;

[0063] The judgment unit is also used to determine whether the second running time meets the preset reversal time point of the drying device;

[0064] The control unit is configured to control the drying device to reverse for a third preset time when the second operating time meets the preset reversal time point of the drying device; the third preset time is less than the second preset time.

[0065] In the above scheme, the operating state includes: the direction of rotation and / or the speed of rotation of the drying device; the judgment unit is also used to change the direction of rotation and / or the speed of rotation of the drying device within the second preset time.

[0066] In the above scheme, the direction of rotation of the drying device includes forward rotation and reverse rotation; when the direction of rotation of the drying device is forward rotation, the judgment unit is further used to change the direction of rotation of the drying device from forward rotation to reverse rotation within the second preset time.

[0067] This invention provides a home appliance comprising a drying device, a sensing component, and a control component; the sensing component is connected to the drying device; and the control component is connected to both the drying device and the sensing component.

[0068] The control component is used to obtain the temperature of the drying device in real time during operation through the sensing component; determine the temperature change parameter within a first preset time period; and determine whether the items in the drying device are wrapped based on the change parameter, and obtain a judgment result.

[0069] This invention provides a control device, including a memory and a processor. The memory stores a program that can run on the processor. The processor executes the program to implement any step of the control method described above.

[0070] This invention provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements any step of the control method described above.

[0071] The present invention provides a control method, a home appliance, a control device, and a storage medium. The method is applied to a home appliance including a drying device. The method includes: obtaining the temperature of the drying device in real time during operation; determining a parameter representing the temperature change over a first preset time period; and determining whether items inside the drying device are wrapped up based on the parameter change, thereby obtaining a determination result. By monitoring the changing parameters of the drying device to identify whether items are wrapped up, and obtaining a determination result, the technical solution of the present invention facilitates measures to prevent clothing from being wrapped up when items are wrapped up in the drying device. Attached Figure Description

[0072] Figure 1 This is a schematic diagram illustrating the implementation process of a control method according to an embodiment of the present invention;

[0073] Figure 2 This is a schematic diagram of the normal drying temperature curve and the abnormal drying temperature curve in the control method of this invention embodiment;

[0074] Figure 3 This is a schematic diagram illustrating another implementation flow of a control method according to an embodiment of the present invention;

[0075] Figure 4 This is a schematic diagram of the temperature curve for the first M2 minutes and the slope of the binomial linear derivative reaction in the control method of the present invention;

[0076] Figure 5 This is a schematic diagram of the temperature curve after M2 minutes and the slope of the binomial linear derivative reaction in the control method of the present invention;

[0077] Figure 6 This is a schematic diagram of the composition of a control device according to an embodiment of the present invention;

[0078] Figure 7 This is a schematic diagram of a hardware entity structure of the control device in an embodiment of the present invention. Detailed Implementation

[0079] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the specific technical solutions of the invention will be further described in detail below with reference to the accompanying drawings of the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0080] This invention provides a control method applicable to household appliances including a drying device. Figure 1 This is a schematic diagram illustrating the implementation flow of a control method according to an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes:

[0081] Step S101: Obtain the temperature of the drying device in real time during operation.

[0082] It should be noted that the household appliance including the drying device can be any household appliance with a drying function, and is not limited here. As an example, the household appliance can be a clothes dryer, and the drying device can be the drum inside the clothes dryer. The control method can be determined according to the actual situation and is not limited here. As an example, the control method can be a drying control method that avoids clothes from being wrapped up, and this drying control method that avoids clothes from being wrapped up can be a clothes dryer drying control method.

[0083] Obtaining the temperature of the drying device in real time during operation can be achieved by monitoring the temperature inside the drying device during normal operation. For ease of understanding, this is illustrated by an example where the appliance includes a sensing component, which can be a thermocouple or other temperature sensor; the appliance can be a clothes dryer; and the drying device can be the drum inside the dryer. Obtaining the temperature of the drying device in real time during normal operation can be achieved by monitoring the temperature inside the drum in real time using a thermocouple or other temperature sensor during the dryer's operation.

[0084] Step S102: Determine the temperature change parameters within a first preset time period.

[0085] It should be noted that the first preset time can be determined according to the actual situation and is not limited here. As an example, the first preset time can be 10 minutes between the 10th and 20th minute of the drying device's operation; or 5 minutes between the 10th and 15th minute of the drying device's operation; or 5 minutes between the 15th and 20th minute of the drying device's operation.

[0086] Determine the temperature variation parameters within a first preset time period; wherein, the variation parameters can be determined according to the actual situation and are not limited here. As an example, the variation parameters can be at least one of the slope of temperature change within the first preset time period, the difference between the highest temperature and the lowest temperature, and the ratio of the highest temperature to the lowest temperature.

[0087] Step S103: Based on the changed parameters, determine whether the items in the drying device are wrapped up, and obtain the determination result.

[0088] It should be noted that the items mentioned can be determined based on the actual situation, and are not limited here. As an example, the items may be clothing.

[0089] Based on the changing parameters, it can be determined whether the items in the drying device are wrapped up. The determination result can be obtained by performing a preset calculation based on the changing parameters, and then using that calculation result to determine whether the items in the drying device are wrapped up. The preset calculation can be determined according to actual circumstances and is not limited here. As an example, the preset calculation can be division, subtraction, or differentiation. Based on the calculation result, it can be determined whether the items in the drying device are wrapped up, resulting in either a determination that the items in the drying device are wrapped up or a determination that the items in the drying device are not wrapped up.

[0090] In this embodiment of the invention, the change parameters of the drying device are monitored to identify whether the items have become wrapped up, and a judgment result is obtained. This allows for convenient measures to be taken to prevent clothing from becoming wrapped up when items are wrapped up in the drying device.

[0091] In an optional embodiment of the present invention, the method further includes: if the determination result indicates that the items in the drying device are wrapped up, obtaining the operating state of the drying device, and changing the operating state within a second preset time period to shake off the wrapped items in the drying device.

[0092] It should be noted that the operating state can be determined according to the actual situation. The operating state may include the operating state of the drying device in rotation and / or the rotation speed. The rotation state may be the drying device rotating forward or in reverse. As an example, the operating state may be the operating state of the drying device rotating forward.

[0093] The second preset time can be determined according to the actual situation, and is not limited here. As an example, the second preset time can be 1 minute.

[0094] Changing the operating state within a second preset time period to shake off the wrapped items inside the drying device can mean changing the rotation state and / or the rotation speed of the drying device within the second preset time period to shake off the wrapped items. In practical applications, changing the operating state within the second preset time period can mean changing the drying device from forward to reverse rotation or from forward to reverse rotation in combination; or changing the rotation speed of the drying device within the second preset time period.

[0095] In an optional embodiment of the present invention, the method further includes: obtaining a first operating time of the drying device; determining whether the first operating time is greater than or equal to a first preset threshold; and if the first operating time is greater than or equal to the first preset threshold, determining a temperature change parameter of the drying device during operation.

[0096] The first operating time can be the normal operating time of the drying device; as an example, the household appliance can be a clothes dryer, and the drying device can be the drum inside the clothes dryer; obtaining the first operating time of the drying device can be the operating time for obtaining the normal drying of the drum inside the clothes dryer.

[0097] The first preset threshold can be determined according to the actual situation and is not limited here. As an example, the first preset threshold can be 10 minutes. Determining whether the first running time is greater than or equal to the first preset threshold can be determined by determining whether the first running time is greater than 10 minutes. When the first running time is greater than or equal to the first preset threshold, determining the temperature change parameter of the drying device during operation can be done when the first running time is greater than or equal to 10 minutes; wherein, the temperature change parameter can be determined according to the actual situation and is not limited here. As an example, the temperature change parameter at least includes the slope of the temperature change, the difference between the highest temperature and the lowest temperature, and the ratio of the highest temperature to the lowest temperature.

[0098] The embodiments of the present invention mainly take into account that during the initial operation period of the drying device, the temperature change parameters may be unstable and the monitoring may be inaccurate.

[0099] In an optional embodiment of the present invention, the variation parameter is at least one of the slope of the temperature change within the first preset time period, the difference between the highest temperature and the lowest temperature, and the ratio of the highest temperature to the lowest temperature.

[0100] In an optional embodiment of the present invention, determining the temperature variation parameter within a first preset time period includes: obtaining multiple temperatures of the drying device within the first preset time period; determining a polynomial function based on the multiple temperatures; and differentiating the polynomial function to determine the slope variation parameter.

[0101] It should be noted that the specific order of the polynomial function can be determined according to the actual situation and is not limited here. As an example, the polynomial function can be a binomial function. The slope change parameter can be determined by taking the derivative of the polynomial.

[0102] In an optional embodiment of the present invention, determining the temperature variation parameter within a first preset time period includes: obtaining multiple temperatures of the drying device within the first preset time period; determining the highest temperature and the lowest temperature among the multiple temperatures; and determining the difference between the highest temperature and the lowest temperature or the ratio of the highest temperature to the lowest temperature based on the highest temperature and the lowest temperature.

[0103] It should be noted that determining the highest and lowest temperatures among the plurality of temperatures can be done by selecting the highest and lowest temperatures from the plurality of temperatures; and determining the difference between the highest and lowest temperatures or the ratio between the highest and lowest temperatures can be done by subtracting the highest and lowest temperatures to obtain the difference between the highest and lowest temperatures, or by dividing the highest and lowest temperatures to obtain the ratio between the highest and lowest temperatures.

[0104] In an optional embodiment of the present invention, the method further includes: determining the slope of the temperature change within the first preset time period based on the determined difference between the highest and lowest temperatures.

[0105] It should be noted that, based on the determined difference between the highest and lowest temperatures, the slope of the temperature change within the first preset time period can be determined by dividing the difference between the highest and lowest temperatures by the absolute value of the difference between the time corresponding to the highest temperature and the time corresponding to the lowest temperature.

[0106] In an optional embodiment of the present invention, the step of determining whether the items in the drying device are wrapped based on the changing parameters and obtaining a determination result includes: determining whether the changing parameters are greater than a second preset threshold; if the changing parameters are greater than or equal to the second preset threshold, determining that the items in the drying device are wrapped; and if the changing parameters are less than the second preset threshold, determining that the items in the drying device are not wrapped.

[0107] It should be noted that the second preset threshold can be determined according to the actual situation, and is not limited here. As an example, the second preset threshold can be 1.5 or 2.

[0108] As an example, when the second preset threshold is 2, the ratio of the second rate of change to the first rate of change is determined; determining whether the change parameter is greater than the second preset threshold can be done by determining whether the change parameter is greater than or equal to 2; when the change parameter is greater than or equal to 2, the result of determining that the items in the drying device are wrapped is determined; when the change parameter is less than 2, the result of determining that the items in the drying device are not wrapped is determined.

[0109] In this embodiment, the temperature change parameters (e.g., the rate of increase) are relatively stable during normal drying, but a sudden change in the rate of increase occurs when clothing becomes wrapped up. This sudden change in the rate of increase is used to identify when clothing has become wrapped up. For ease of understanding, schematic diagrams of normal drying temperature curves and abnormal drying temperature curves in the control method of this embodiment are shown here. Figure 2 As shown, Figure 2 This is a schematic diagram of the normal drying temperature curve and the abnormal drying temperature curve in the control method of the present invention. The horizontal axis is time / s; the vertical axis is temperature / ℃*10, that is, the temperature is expanded by 10 times; 11 is the abnormal drying temperature point when the items in the drying device are wrapped, that is, when the items in the drying device are wrapped, a sudden change in the slope occurs.

[0110] In an optional embodiment of the present invention, the step of determining whether the items in the drying device are wrapped based on the changing parameters and obtaining a determination result includes: obtaining two consecutive changing parameters; determining the ratio of the two consecutive changing parameters; determining whether the ratio is greater than or equal to a third preset threshold; and determining the determination result that the items in the drying device are wrapped if the ratio is greater than or equal to the third preset threshold.

[0111] It should be noted that obtaining two consecutive changing parameters and determining the ratio of the two consecutive changing parameters can be achieved by sliding the calculation of the rate of change of time within the preset time window, calculating two consecutive slopes and comparing them to determine the ratio of the two consecutive slopes. The preset time window can be determined according to the actual situation and is not limited here. As an example, the preset time window can be 5 minutes.

[0112] For ease of understanding, an example is given here, assuming the preset time window is 5 minutes; two consecutive changing parameters are obtained, and the ratio of the two consecutive changing parameters can be determined by obtaining the temperature rise slope within 10 to 15 minutes of the dryer's operation and the temperature rise slope within 15 to 20 minutes of the dryer's operation. The ratio of the temperature rise slope within 10 to 15 minutes of the dryer's operation to the temperature rise slope within 15 to 20 minutes of the dryer's operation is obtained by dividing the temperature rise slope within 10 to 15 minutes of the dryer's operation by the temperature rise slope within 15 to 20 minutes of the dryer's operation. In practical applications, the temperature rise slope within 10 to 15 minutes of dryer operation can be understood as the temperature rise slope of the previous 5 minutes after the dryer has been operating for 10 minutes, referred to as the previous 5-minute temperature rise slope; the temperature rise slope within 15 to 20 minutes of dryer operation can be understood as the temperature rise slope of the next 5 minutes after the dryer has been operating for 10 minutes, referred to as the next 5-minute temperature rise slope.

[0113] The third preset threshold can be determined according to the actual situation and is not limited here. As an example, if the ratio is the ratio of the temperature rise slope of the previous 5 minutes to the temperature rise slope of the next 5 minutes, the third preset threshold can be 0.5; if the ratio is the ratio of the temperature rise slope of the next 5 minutes to the temperature rise slope of the previous 5 minutes, the third preset threshold can be 2.

[0114] In this embodiment of the invention, during the operation of the dryer, the internal temperature is monitored in real time using thermocouples or other temperature sensors. The temperature rise slope over a 5-minute period is calculated every 10 minutes. During normal drying, the temperature rise slope is relatively stable, with little difference between the slopes of the previous 5 minutes and the next. However, when clothes become tangled, a sudden change in the slope occurs. This sudden change in slope is used to identify tangled clothes. Upon identification, the dryer drum is immediately reversed, and the rotation speed is changed to prevent further tangling and untangling.

[0115] In an optional embodiment of the present invention, the ratio includes the quotient of the absolute values ​​between the larger and smaller of the two consecutive changing parameters.

[0116] In an optional embodiment of the present invention, when the determination result indicates that the items in the drying device are wrapped, the method further includes: obtaining a second operating time of the drying device; determining whether the second operating time meets a preset reversal time point of the drying device; and controlling the drying device to reverse for a third preset time when the second operating time meets the preset reversal time point of the drying device; wherein the third preset time is less than the second preset time.

[0117] It should be noted that the second running time and the preset reversal time point can be determined according to the actual situation, and are not limited here. As an example, the preset reversal time point can be a reversal every ten minutes.

[0118] The second preset time and the third preset time can be determined according to the actual situation, and are not limited here. As an example, the second preset time can be 1 minute and the third preset time can be 30 seconds.

[0119] In an optional embodiment of the present invention, the operating state includes: the direction of rotation and / or the magnitude of the rotation speed of the drying device; changing the operating state within a third preset time period includes: changing the direction of rotation and / or the magnitude of the rotation speed of the drying device within the third preset time period.

[0120] It should be noted that the direction of rotation of the drying device includes both the forward rotation and the reverse rotation. Changing the direction and / or speed of the drying device within the third preset time period can include the following three situations: Situation 1: Changing the direction of rotation of the drying device within the third preset time period. For example, if the drying device is rotating forward, changing it from forward to reverse or a combination of forward and reverse rotation within the third preset time period. Situation 2: Changing both the direction and speed of rotation of the drying device within the third preset time period. For example, if the drying device is rotating forward, changing it from forward to reverse and changing the speed within the third preset time period. Situation 3: Changing the speed of rotation of the drying device within the third preset time period. For example, decreasing the speed of the drying device from large to small or increasing the speed within the third preset time period.

[0121] In one optional embodiment of the present invention, the direction of rotation of the drying device includes forward rotation and reverse rotation;

[0122] When the drying device is rotating in a forward direction, changing the direction of rotation of the drying device within a third preset time period includes: changing the drying device from rotating in a forward direction to rotating in a reverse direction within the third preset time period.

[0123] The control method provided in this invention identifies whether items are wrapped up by monitoring the temperature fluctuation of the drying device. If items are wrapped up in the drying device, the operating state is changed at a preset time to shake out the wrapped items, thus realizing timely changes in the operating state to prevent clothing from getting wrapped up.

[0124] To better understand this invention, Figure 3 This is a schematic diagram illustrating another implementation flow of a control method according to an embodiment of the present invention; here, the control method is a drying control method to avoid clothes from being wrapped up, the household appliance is a dryer, and the drying device is the drum inside the dryer, as an example for illustration. The flow steps of the drying control method to avoid clothes from being wrapped up are as follows:

[0125] S201: The dryer is operating normally and drying clothes.

[0126] It should be noted that "drying" in normal operation of the dryer can be understood as the dryer working normally.

[0127] S202: Record the temperature inside the drum at different running times.

[0128] It should be noted that the temperature inside the dryer can be monitored in real time using a sensor, which can record the temperature inside the drum at different running times. This sensor can be a thermocouple or other temperature sensor.

[0129] S203: Determine if the drying operation time has started (M1 minutes).

[0130] It should be noted that the specific value of M1 minutes can be determined according to the actual situation and is not limited here. As an example, M1 minutes can be 10 minutes. Determining whether the drying operation time has started for M1 minutes can be determined by determining whether the drying operation time has started for 10 minutes. This determination can be determined by determining whether the dryer has been working for 10 minutes. If the dryer has been working for 10 minutes, then step S204 is executed; if the dryer has not been working for 10 minutes, then step S202 is executed. This step mainly takes into account that the temperature rise slope is relatively stable after the dryer has been working for 10 minutes.

[0131] S204: Calculate the slope of temperature rise within M2 minutes.

[0132] It should be noted that the specific value of M2 minutes can be determined according to the actual situation and is not limited here. As an example, M2 minutes can be 5 minutes. Calculating the temperature rise slope within M2 minutes can be equivalent to calculating the temperature rise slope within 5 minutes. This calculation of the temperature rise slope within 5 minutes can be understood as the temperature rise slope within 5 minutes after the dryer has been running for 10 minutes, that is, a recalculated 5 minutes after the dryer has been running for 10 minutes; in other words, calculating the temperature rise slope within 5 minutes after the dryer has been running for 10 minutes is equivalent to calculating the temperature rise slope within 10-15 minutes of the dryer's operation.

[0133] S205: Calculate the ratio of the temperature rise slope of the previous M2 minutes to the temperature rise slope of the next M2 minutes.

[0134] It should be noted that the specific value of M2 minutes can be determined according to the actual situation, and is not limited here. As an example, M2 minutes can be 5 minutes. The ratio of the temperature rise slope of the previous M2 minutes to the temperature rise slope of the next M2 minutes can be understood as the ratio of the temperature rise slope of the previous 5 minutes to the temperature rise slope of the next 5 minutes. The temperature rise slope of the previous 5 minutes can be understood as the temperature rise slope within 5 minutes after the dryer has been running for 10 minutes, i.e., a recalculated 5-minute period after the dryer has been running for 10 minutes. In other words, calculating the temperature rise slope within 5 minutes after the dryer has been running for 10 minutes is equivalent to calculating the temperature rise slope within 10-15 minutes of dryer operation. Similarly, the temperature rise slope of the next 5 minutes can be understood as the temperature rise slope within 5 minutes after the dryer has been running for 10 minutes, i.e., a recalculated 5-minute period after the dryer has been running for 15 minutes. In other words, calculating the temperature rise slope within 5-10 minutes after the dryer has been running for 10 minutes is equivalent to calculating the temperature rise slope within 15-20 minutes of dryer operation.

[0135] The ratio of the temperature rise slope of the previous 5 minutes to the temperature rise slope of the next 5 minutes can be determined by dividing the temperature rise slope of the previous 5 minutes by the temperature rise slope of the next 5 minutes; or by dividing the temperature rise slope of the next 5 minutes by the temperature rise slope of the previous 5 minutes.

[0136] S206: Whether the ratio has reached the judgment threshold.

[0137] It should be noted that whether the ratio reaches the judgment threshold can be understood as judging whether the ratio reaches the judgment threshold. If the ratio reaches the judgment threshold, step S207 is executed; if the ratio does not reach the judgment threshold, step S209 is executed.

[0138] The judgment threshold can be determined according to the actual situation and is not limited here. As an example, if the ratio is the temperature rise slope of the previous 5 minutes to the temperature rise slope of the next 5 minutes, the judgment threshold can be 0.5; if the ratio is the temperature rise slope of the next 5 minutes to the temperature rise slope of the previous 5 minutes, the judgment threshold can be 2.

[0139] To make it easier to understand, here's an example to illustrate that the slope can be calculated using the binomial linear derivative. Figure 4 This is a schematic diagram of the temperature curve for the first M2 minutes and the slope of the binomial linear derivative reaction in the control method of the present invention. Figure 5This diagram illustrates the temperature curves and the slope of the binomial linear derivative reaction in the control method of this invention for the last M2 minutes. For ease of understanding, M2 minutes is illustrated using a 5-minute example. The temperature curves (solid lines) for the first 5 minutes and the slope of the binomial linear derivative reaction (dashed lines) for the last 5 minutes are shown below. Figure 4 and Figure 5 As shown in the figure, according to the formula, the slope of the first five minutes is 0.9406, and the slope of the last five minutes is 2.303. The ratio of the slope of the last five minutes to the slope of the first five minutes exceeds 2. Therefore, this situation can be identified as an abnormally rapid rise in temperature, causing the clothes inside the dryer to become wrapped up.

[0140] S207: Reverse M4 minutes.

[0141] It should be noted that the specific value of M4 minutes can be determined according to the actual situation and is not limited here. As an example, M4 minutes can be 1 minute, and reverse M4 minutes can be reverse 1 minute. This reverse 1 minute can be understood as, when it is detected that the clothes in the dryer are wrapped up, the dryer is controlled to change from forward rotation to reverse 1 minute to shake the clothes apart.

[0142] S208: Continue drying by rotating forward.

[0143] It should be noted that continuing to dry in the forward direction can be used to control the dryer to continue working normally, that is, to continue drying in the forward direction.

[0144] S209: Determine whether the running time has reached the timed reversal point.

[0145] It should be noted that, when determining whether the running time has reached the timed reversal point, if the running time has reached the timed reversal point, step S210 is executed; if the running time has not reached the timed reversal point, step S207 is executed.

[0146] The timing of the timed reversal can be determined based on the actual situation. As an example, the timing of the timed reversal can be every 10 minutes.

[0147] S210: Reverse M3 seconds

[0148] It should be noted that the specific value of M3 seconds can be determined according to the actual situation, and is not limited here. As an example, M3 seconds can be 30 seconds.

[0149] This invention primarily addresses the issue that when clothes become entangled inside the dryer, the temperature inside the drum will rise abnormally because moisture cannot evaporate properly. Therefore, when the humidity sensor inside the dryer detects an abnormal temperature rise before the clothes are properly dried, it can be considered that the clothes have become entangled. The dryer operates by reversing its rotation for 30 seconds every ten minutes during normal forward rotation. When the sensor detects that clothes have become entangled, it immediately reverses its rotation for one minute.

[0150] The drying control method of this invention monitors the temperature inside the dryer in real time during operation using thermocouples or other temperature sensors. After 10 minutes, it calculates the temperature rise slope over a 5-minute period. During normal drying, the temperature rise slope is relatively stable, with little difference between the slopes of the previous 5 minutes and the next. However, when clothes become tangled, a sudden change in the slope occurs. This sudden change in slope is used to identify tangled clothes; upon identification, the dryer drum is immediately reversed, and the rotation speed is changed to prevent further tangling and untangling.

[0151] This embodiment proposes a control device. Figure 6 This is a schematic diagram of the composition structure of a control device according to an embodiment of the present invention, as shown below. Figure 6 As shown, the device 300 is applied to household appliances including a drying device; the device 300 includes: an obtaining unit 301, a determining unit 302, and a judging unit 303;

[0152] The obtaining unit 301 is used to obtain the temperature of the drying device in real time during operation;

[0153] The determining unit 302 is used to determine the temperature change parameters within a first preset time period;

[0154] The judgment unit 303 is used to determine whether the items in the drying device are wrapped based on the changing parameters, and to obtain a judgment result.

[0155] In other embodiments, the judgment unit 303 is further configured to, when the judgment result indicates that the items in the drying device have become wrapped, obtain the operating state of the drying device, and change the operating state within a second preset time period to shake off the wrapped items in the drying device.

[0156] In other embodiments, the obtaining unit 301 is further configured to obtain the first operating time of the drying device;

[0157] The judgment unit 303 is also used to determine whether the first running time is greater than or equal to the first preset threshold.

[0158] The determining unit 302 is further configured to determine the temperature change parameters of the drying device during operation when the first running time is greater than or equal to the first preset threshold.

[0159] In other embodiments, the variation parameter is at least one of the slope of the temperature change within the first preset time period, the difference between the highest and lowest temperatures, and the ratio of the highest to the lowest temperatures.

[0160] In other embodiments, the determining unit 302 is further configured to obtain multiple temperatures of the drying device within the first preset time period; determine a polynomial function based on the multiple temperatures; and determine the slope change parameter by differentiating the polynomial function.

[0161] In other embodiments, the determining unit 302 is further configured to obtain multiple temperatures of the drying device within the first preset time period; determine the highest temperature and the lowest temperature among the multiple temperatures; and determine the difference between the highest temperature and the lowest temperature or the ratio of the highest temperature to the lowest temperature based on the highest temperature and the lowest temperature.

[0162] In other embodiments, the determining unit 302 is further configured to determine the slope of the temperature change within the first preset time period based on the determined difference between the highest and lowest temperatures.

[0163] In other embodiments, the judgment unit 303 is further configured to determine whether the changing parameter is greater than a second preset threshold; if the changing parameter is greater than or equal to the second preset threshold, determine that the items in the drying device are wrapped; if the changing parameter is less than the second preset threshold, determine that the items in the drying device are not wrapped.

[0164] In other embodiments, the judgment unit 303 is further configured to obtain two consecutive changing parameters; determine the ratio of the two consecutive changing parameters; determine whether the ratio is greater than or equal to a third preset threshold; and, if the ratio is greater than or equal to the third preset threshold, determine the judgment result that the items in the drying device are wrapped.

[0165] In other embodiments, the ratio includes the quotient of the absolute values ​​of the larger and smaller of the two consecutive varying parameters.

[0166] In other embodiments, if the determination result indicates that the items in the drying device have become wrapped, the device further includes a control unit;

[0167] The obtaining unit is also used to obtain the second operating time of the drying device;

[0168] The judgment unit is also used to determine whether the second running time meets the preset reversal time point of the drying device;

[0169] The control unit is configured to control the drying device to reverse for a third preset time when the second operating time meets the preset reversal time point of the drying device; the third preset time is less than the second preset time.

[0170] In other embodiments, the operating state includes: the direction of rotation and / or the speed of rotation of the drying device; the judgment unit is further configured to change the direction of rotation and / or the speed of rotation of the drying device within the second preset time period.

[0171] In other embodiments, the direction of rotation of the drying device includes forward rotation and reverse rotation; when the direction of rotation of the drying device is forward rotation, the determining unit is further configured to change the direction of rotation of the drying device from forward rotation to reverse rotation within the second preset time.

[0172] This invention provides a home appliance comprising a drying device, a sensing component, and a control component; the sensing component is connected to the drying device; and the control component is connected to both the drying device and the sensing component.

[0173] The control component is used to obtain the temperature of the drying device in real time during operation through the sensing component; determine the temperature change parameter within a first preset time period; and determine whether the items in the drying device are wrapped based on the change parameter, and obtain a judgment result.

[0174] It should be noted that the sensing component can be any type of sensing component, and no limitation is made herein. As an example, the sensing component can be a thermocouple or other temperature sensor. The control component can be any type of control component, and no limitation is made herein. As an example, the control component can be a controller.

[0175] The description of the above device embodiments is similar to that of the above method embodiments, and has similar beneficial effects. For technical details not disclosed in the device embodiments of the present invention, please refer to the description of the method embodiments of the present invention for understanding.

[0176] It should be noted that, in the embodiments of the present invention, if the above-described knowledge base construction method is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical embodiments of the present invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a control server (which may be a personal computer, a server, or a network server, etc.) to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), magnetic disks, or optical disks. Thus, the embodiments of the present invention are not limited to any specific hardware and software combination.

[0177] Correspondingly, embodiments of the present invention provide a control device, including: a processor and a memory for storing a computer program capable of running on the processor, wherein, when the processor runs the computer program, it executes the steps in the knowledge base construction method provided in the above embodiments.

[0178] Correspondingly, embodiments of the present invention provide a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps in the knowledge base construction method provided in the above embodiments.

[0179] It should be noted that the descriptions of the storage medium and server embodiments above are similar to those of the method embodiments above, and have similar beneficial effects. For technical details not disclosed in the storage medium and server embodiments of the present invention, please refer to the descriptions of the method embodiments of the present invention for understanding.

[0180] It should be noted that, Figure 7 This is a schematic diagram of a hardware entity structure of the control device in an embodiment of the present invention, such as... Figure 7 As shown, the hardware entity of the control device 400 includes a processor 401 and a memory 403. Optionally, the control device 400 may also include a communication interface 402.

[0181] It is understood that memory 403 can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memory 403 described in this embodiment of the invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0182] The methods disclosed in the above embodiments of the present invention can be applied to processor 401, or implemented by processor 401. Processor 401 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 401 or by instructions in the form of software. The processor 401 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Processor 401 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present invention can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in memory 403. Processor 401 reads the information in memory 403 and combines its hardware to complete the steps of the aforementioned method.

[0183] In an exemplary embodiment, the control device may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0184] In the several embodiments provided by this invention, it should be understood that the disclosed methods and apparatus can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components may be combined, or integrated into another observation, or some features may be ignored or not executed. In addition, the communication connections between the various components shown or discussed may be through some interfaces, indirect coupling or communication connections between devices or units, and may be electrical, mechanical, or other forms.

[0185] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0186] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media that can store program code, such as mobile storage devices, read-only memory (ROM), magnetic disks, or optical disks.

[0187] Alternatively, if the integrated units described above in the embodiments of the present invention are implemented as software functional units and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical embodiments of the present invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a control device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0188] The knowledge base construction method, control device, and storage medium described in this invention are only examples of the embodiments described in this invention, but are not limited thereto. Any knowledge base construction method, control device, and storage medium involved are within the protection scope of this invention.

[0189] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of the invention, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the invention. The sequence numbers of the above-described embodiments of the invention are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0190] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0191] The methods disclosed in the several method embodiments provided by this invention can be arbitrarily combined without conflict to obtain new method embodiments.

[0192] The features disclosed in the several product embodiments provided by this invention can be arbitrarily combined without conflict to obtain new product embodiments.

[0193] The features disclosed in the several method or device embodiments provided by the present invention can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0194] The above description is merely an embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A control method, characterized in that, Applied to household appliances including drying devices; the method includes: The temperature of the drying device during operation can be obtained in real time. Determine the temperature variation parameters within a first preset time period; the variation parameters are at least one of the slope of temperature change within the first preset time period, the difference between the highest and lowest temperatures, and the ratio of the highest to the lowest temperatures. Based on the changing parameters, determine whether the items in the drying device are wrapped up, and obtain the determination result; The method further includes: If the judgment result indicates that the items in the drying device are wrapped up, the operating state of the drying device is obtained, and the operating state is changed within a second preset time to shake out the wrapped items in the drying device. The first operating time of the drying device is obtained; Determine whether the first running time is greater than or equal to a first preset threshold; If the first running time is greater than or equal to the first preset threshold, the temperature change parameters of the drying device during operation are determined.

2. The method according to claim 1, characterized in that, The step of determining the temperature change parameter within a first preset time period includes: The drying device obtains multiple temperatures within the first preset time period; The polynomial function is determined based on the multiple temperatures; Differentiate the polynomial function to determine the slope variation parameter.

3. The method according to claim 1, characterized in that, The step of determining the temperature change parameter within a first preset time period includes: The drying device obtains multiple temperatures within the first preset time period; Determine the highest and lowest temperatures among the plurality of temperatures; Based on the highest and lowest temperatures, determine the difference between the highest and lowest temperatures or the ratio of the highest to the lowest temperatures.

4. The method according to claim 3, characterized in that, The method further includes: Based on the difference between the highest and lowest temperatures, the slope of the temperature change within the first preset time period is determined.

5. The method according to claim 1, characterized in that, The step of determining whether items in the drying device become wrapped based on the changing parameters and obtaining the determination result includes: Determine whether the changed parameter is greater than a second preset threshold; If the changing parameter is greater than or equal to the second preset threshold, a determination is made that the items in the drying device are wrapped. If the changing parameter is less than the second preset threshold, it is determined that the items in the drying device will not be wrapped.

6. The method according to claim 1, characterized in that, The step of determining whether items in the drying device become wrapped based on the changing parameters and obtaining the determination result includes: Obtain two consecutive changing parameters; Determine the ratio of the two consecutive changing parameters; Determine whether the ratio is greater than or equal to a third preset threshold; If the ratio is greater than or equal to the third preset threshold, a determination is made that the items in the drying device have been wrapped.

7. The method according to claim 6, characterized in that, The ratio includes the quotient of the absolute values ​​of the larger and smaller of the two consecutive changing parameters.

8. The method according to any one of claims 1-7, characterized in that, If the determination result indicates that the items inside the drying device have become wrapped, the method further includes: The second operating time of the drying device is obtained; Determine whether the second running time meets the preset reversal time point of the drying device; If the second operating time meets the preset reversal time point of the drying device, the drying device is controlled to reverse for a third preset time; the third preset time is less than the second preset time.

9. The method according to claim 1, characterized in that, The operating status includes: the direction of rotation and / or the magnitude of the rotation speed of the drying device; Changing the operating state within the second preset time period includes: The direction and / or speed of the drying device are changed within the second preset time period.

10. The method according to claim 9, characterized in that, The drying device can rotate in both forward and reverse directions. When the drying device is rotating in a forward direction, changing the rotation direction of the drying device within a second preset time period includes: Within the second preset time period, the drying device is changed from forward rotation to reverse rotation.

11. A household appliance, characterized in that, The home appliance includes a drying device, a sensing component, and a control component; the sensing component is connected to the drying device; the control component is connected to both the drying device and the sensing component. The control component is used to obtain the temperature of the drying device in real time during operation through the sensing component; and to determine the temperature change parameters within a first preset time period. The change parameter is at least one of the following: the slope of the temperature change within the first preset time period, the difference between the highest and lowest temperatures, and the ratio of the highest to the lowest temperatures. Based on the changing parameters, determine whether the items in the drying device are wrapped up, and obtain the determination result; The control component is also used to obtain the operating state of the drying device when the judgment result indicates that the items in the drying device are wrapped up, and to change the operating state within a second preset time to shake off the wrapped items in the drying device. The first operating time of the drying device is obtained; Determine whether the first running time is greater than or equal to a first preset threshold; If the first running time is greater than or equal to the first preset threshold, the temperature change parameters of the drying device during operation are determined.

12. A control device comprising a memory and a processor, the memory storing a program executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method according to any one of claims 1 to 10.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 10.

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