Laundry treating apparatus, and drying heating failure detection method, device, and storage medium

Abstract

The application discloses a clothes treatment device, a drying heating fault detection method and device and a storage medium, and the method comprises the following steps: determining a fault determination condition according to the air temperature in the current washing tub; and determining the drying heating tube fault according to the air temperature change condition of the drying heating tube under continuous heating, which meets the fault determination condition. In the drying process, the fault determination condition of the drying heating tube is related to the air temperature in the current washing tub, instead of the air temperature change condition after heating in the traditional scheme, which is not used to determine the drying heating tube fault condition, so that the fault determination condition is determined according to the air temperature, the drying heating tube fault misjudgment problem caused by the water in the washing tub due to abnormal conditions in the drying process can be avoided, and then whether the air temperature change condition of the drying heating tube under continuous heating meets the fault determination condition is determined, so that the drying heating tube fault detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart home, in particular to a clothes processing device and a drying heating fault detection method, device and storage medium. BACKGROUND

[0002] At present, the clothes processing device increases the drying function in the clothes processing process. Compared with the clothes processing device only having the washing function, the clothes processing device having the drying function increases a drying module. The drying module includes a drying duct inlet temperature sensor, a drying duct outlet temperature sensor, a drying heating pipe and a drying fan.

[0003] In the related art, when the clothes processing device enters the drying process, the temperature sensor of the drying duct outlet detects the temperature of the air heated by the drying heating pipe, and determines that the drying heating pipe is faulty according to the temperature rise of the heated air not meeting certain requirements.

[0004] However, if the washing tub has water entering due to abnormal conditions during the heating process of the drying heating pipe, the temperature sensor of the drying duct outlet detects that the temperature rise of the air does not meet certain requirements, and misjudges that the drying heating pipe is faulty.

[0005] Therefore, the existing drying heating fault detection scheme has the problem of low accuracy. SUMMARY

[0006] The present application is proposed to solve the problems of the prior art. The purpose is achieved by the following technical solutions.

[0007] The first aspect of the present application provides a drying heating fault detection method, which comprises:

[0008] determining a fault determination condition according to the current air temperature in the washing tub;

[0009] determining that the drying heating pipe is faulty according to the change of the air temperature continuously heated by the drying heating pipe meeting the fault determination condition.

[0010] In some embodiments of the present application, the determination of the fault determination condition according to the current air temperature in the washing tub comprises:

[0011] determining that the fault determination condition is that the air temperature rise is lower than a first threshold value according to the current air temperature in the washing tub being less than a preset temperature;

[0012] determining that the fault determination condition is that the air temperature drop exceeds a second threshold value according to the current air temperature in the washing tub being greater than or equal to the preset temperature.

[0013] In some embodiments of the present application, the fault determination condition is met according to the change of the air temperature continuously heated by the drying heating pipe, comprising:

[0014] According to the current air temperature in the washing tub being less than a preset temperature, the change of the air temperature continuously heated by the drying heating pipe is obtained;

[0015] A temperature rise value is determined based on the change of the air temperature;

[0016] According to the temperature rise value being less than a first threshold value, it is determined that the fault determination condition is met.

[0017] In some embodiments of the present application, the change of the air temperature continuously heated by the drying heating pipe is obtained, comprising:

[0018] According to the drying heating pipe being in a heating state, a heating duration is started to be counted, and the air temperature at the beginning of counting is recorded;

[0019] During the drying heating pipe maintaining the same heating state, according to the counted heating duration reaching a first preset duration, the heating duration counting is ended, and the air temperature at the end of counting is recorded;

[0020] The recorded air temperature at the beginning of counting and the recorded air temperature at the end of counting are taken as the change of the air temperature.

[0021] In some embodiments of the present application, the method further comprises:

[0022] During the counting of the heating duration of the drying heating pipe, according to the air temperature appearing a continuous decrease, the heating duration is started to be counted again, and the air temperature at the beginning of counting is recorded again;

[0023] According to the counted heating duration reaching a second preset duration, the heating duration counting is ended, and the air temperature at the end of counting is recorded;

[0024] The recorded air temperature at the beginning of counting and the recorded air temperature at the end of counting are taken as the change of the air temperature.

[0025] Wherein, the first preset duration is less than the second preset duration.

[0026] In some embodiments of the present application, the fault determination condition is met according to the change of the air temperature continuously heated by the drying heating pipe, comprising:

[0027] According to the current air temperature in the washing tub being greater than or equal to a preset temperature, the change of the air temperature continuously heated by the drying heating pipe is obtained;

[0028] determine a temperature drop value based on the air temperature change;

[0029] determine that the failure determination condition is met according to the temperature drop value exceeding a second threshold value.

[0030] In some embodiments of the present application, the air temperature change of the drying heating pipe is obtained by:

[0031] start to count the heating duration and record the air temperature at the beginning of the counting according to the drying heating pipe being in the heating state;

[0032] end the heating duration counting and record the air temperature at the end of the counting according to the counted heating duration reaching a third preset duration while the drying heating pipe maintaining the heating state unchanged;

[0033] record the air temperature at the beginning of the counting and the air temperature at the end of the counting as the air temperature change.

[0034] The second aspect of the present application provides a drying heating failure detection device, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method according to the first aspect.

[0035] The third aspect of the present application provides a clothes treatment device, which comprises:

[0036] the drying heating failure detection device according to the second aspect;

[0037] a temperature sensor arranged at an air outlet of a drying duct of the clothes treatment device, used to collect the air temperature of the air heated by a drying heating pipe in the drying duct.

[0038] The fourth aspect of the present application provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the steps of the method according to the first aspect.

[0039] Based on the clothes treatment device and the drying heating failure detection method, device and storage medium, the present application has the following advantages:

[0040] During the drying process, the fault diagnosis criteria for the drying heating element are first determined based on the current air temperature inside the washing tub. Since the fault diagnosis criteria for the drying heating element are related to the current air temperature in the washing tub, rather than relying solely on the temperature rise of the heated air to determine the fault, as is the case in traditional solutions, determining the fault diagnosis criteria based on air temperature can avoid misdiagnosis of the drying heating element due to water entering the washing tub during the drying process. Then, by determining whether the temperature change of the air continuously heated by the drying heating element meets the fault diagnosis criteria, the accuracy of the drying heating element fault detection is improved. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram illustrating the effect of water entering the washing tub during the drying process on air temperature, as shown in this invention.

[0043] Figure 2 This is a schematic diagram of the structure of a clothing processing device according to the present invention;

[0044] Figure 3 This is a schematic flowchart illustrating an embodiment of a drying and heating fault detection method according to an exemplary embodiment of the present invention;

[0045] Figure 4 According to the present invention Figure 3 The illustrated embodiment presents a flowchart of a specific implementation of a drying and heating fault detection method.

[0046] Figure 5 According to the present invention Figure 3 The illustrated embodiment presents another specific implementation flowchart for drying and heating fault detection;

[0047] Figure 6 This is a schematic diagram of a drying and heating fault detection device according to an exemplary embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram illustrating the structure of a storage medium according to an exemplary embodiment of the present invention.

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should fall within the protection scope of the present application.

[0051] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directionality indications also change accordingly.

[0052] In addition, the descriptions such as “first”, “second” and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “plurality” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0053] In the present application, unless otherwise specifically defined and limited, the terms “connection”, “fixation” and the like should be understood in a broad sense, for example, “fixation” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0055] Referring to Figure 1 As shown in the figure, the horizontal axis represents the heating time t of the drying heating pipe, and the vertical axis represents the air temperature T in the washing tub. From the curve, it can be seen that the air temperature in the washing tub rises at a certain rate, and when the air temperature reaches a certain value, the drying heating pipe is turned off. Figure 1 It can be seen that after the air temperature rises for a period of time 0-t1, because of an abnormal situation, some cold water enters the washing tub, which causes the air temperature in the washing tub to fail to rise, and after a period of time t1-t2, the air temperature begins to gradually rise again.

[0056] If the traditional fault detection scheme is adopted, the software logic will consider that the drying heating tube is faulty if the air temperature does not meet certain requirements within a period of time t1-t2 after cold water enters the washing tub, but in fact, it is not the drying heating tube fault, but the cold water entering the washing tub, thereby causing the misjudgment problem of the drying heating tube.

[0057] In terms of distance, for the laundry treatment device of the upper and lower tub type, the upper tub is used to wash clothes, and the lower tub is used to dry clothes. During the drying process, due to abnormal conditions, the water in the upper tub will enter the lower tub, causing the air temperature in the lower tub to rise while cooling, which will cause the misjudgment problem of the drying heating tube.

[0058] To solve the above technical problems, in the embodiments of the present application, the temperature sensor arranged at the air outlet of the drying channel in the laundry treatment device is used to collect the air temperature of the air heated by the drying heating tube in the drying channel in real time. When the fault is determined, the fault determination condition is first determined according to the current air temperature in the washing tub, and then it is determined that the drying heating tube is faulty according to whether the air temperature change of the drying heating tube meets the fault determination condition.

[0059] Referring to Figure 2 As shown in the figure, the laundry treatment device includes a washing tub 10, a drying heating tube 20 arranged in the drying channel, and a temperature sensor 30 arranged at the air outlet of the drying channel.

[0060] It should be noted that since the laundry treatment device belongs to an internal circulation system, the air discharged from the washing tub 10 will enter the drying channel from the air inlet of the drying channel, be heated by the drying heating tube 20 in the drying channel, and then be discharged from the air outlet of the drying channel and enter the washing tub 10 again to dry the clothes. Therefore, the air temperature collected by the temperature sensor 30 at the air outlet of the drying channel can directly reflect the air temperature in the washing tub 10.

[0061] Based on the above description, without changing the original hardware logic, the present application upgrades the software processing logic by design, realizes accurate detection of the drying heating fault, and avoids the misjudgment problem of the drying heating tube. That is, during the drying process, the fault determination condition of the drying heating tube is first determined according to the current air temperature in the washing tub. Since the fault determination condition of the drying heating tube is related to the current air temperature in the washing tub, and not the air temperature rise condition after heating in the traditional scheme, the fault determination condition is determined according to the air temperature, which can avoid the misjudgment problem of the drying heating tube caused by the water entering the washing tub due to abnormal conditions during the drying process. Then, whether the air temperature change of the drying heating tube meets the fault determination condition is determined to improve the accuracy of the drying heating tube fault detection.

[0062] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with specific drying heating fault detection embodiments.

[0063] Embodiment one:

[0064] Figure 3 For the embodiment of the drying heating fault detection method according to an exemplary embodiment of the present application, the drying heating fault detection method is applied to the laundry treatment device shown in the above Figure 2 As shown in the above Figure 3 The drying heating fault detection method comprises the following steps:

[0065] Step 301: determining a fault determination condition according to the air temperature in the current washing tub.

[0066] In this embodiment, the temperature collected by the temperature sensor at the air outlet of the drying duct is obtained as the air temperature in the washing tub.

[0067] In this embodiment, the fault determination condition of the drying heating pipe is determined according to the air temperature in the current washing tub. Since the fault determination condition of the drying heating pipe is related to the air temperature in the current washing tub, and the condition of the air temperature after heating is not always used to determine the fault condition of the drying heating pipe in the traditional scheme, the fault determination condition is determined according to the air temperature, which can avoid the false determination of the drying heating pipe caused by the abnormal situation that water enters the washing tub during the drying process.

[0068] In the fault determination condition design stage, according to practical experience, when the air temperature in the washing tub is heated to a certain degree, the air temperature rises relatively slowly even if the drying heating pipe is heated under the condition of low voltage at high temperature. Therefore, the present application distinguishes the use of the fault determination condition by pre-configuring a temperature for realizing the boundary determination.

[0069] The preset temperature is used to indicate the upper limit value of the temperature at which the air temperature rises relatively fast during the process of heating the air by the drying heating pipe, which can be obtained through a large number of experimental tests. That is, when the air temperature is below the preset temperature, the air temperature rises relatively fast under the heating state of the drying heating pipe, and when the air temperature is above the preset temperature, the air temperature rises relatively slowly under the heating state of the drying heating pipe.

[0070] For the specific implementation process of step 301, in an optional embodiment, the air temperature in the current washing tub can be compared with the preset temperature, if the air temperature in the current washing tub is less than the preset temperature, it is determined that the fault determination condition is that the air temperature rise value is lower than the first threshold value; if the air temperature in the current washing tub is greater than or equal to the preset temperature, it is determined that the fault determination condition is that the air temperature drop value exceeds the second threshold value.

[0071] In this embodiment, in the case that the air temperature is less than the preset temperature, because the air temperature rises relatively fast under normal circumstances, even if the washing tub has water entering due to abnormal conditions, the air temperature will also rise under the heating state of the drying heating pipe, therefore, the fault determination condition adopts that the air temperature rise value is lower than a certain threshold value, and only then it is determined that the drying heating pipe is faulty. In the case that the air temperature is greater than or equal to the preset temperature, because the air temperature rises relatively slowly under normal circumstances, and in addition, if the washing tub has water entering, the air temperature will not rise under the heating state of the drying heating pipe, and even it will drop, in order to reduce misjudgment, the fault determination condition adopts that the air temperature drop value is higher than a certain threshold value, and only then it is determined that the drying heating pipe is faulty.

[0072] It can be understood that the first threshold value used for the air temperature rise value determination and the second threshold value used for the air temperature drop value determination can be the same or different, and the present application does not make specific limitation thereon.

[0073] Step 302: determining that the drying heating pipe is faulty according to the fact that the fault determination condition is met according to the air temperature change of the drying heating pipe under continuous heating.

[0074] In order to ensure the accuracy of the fault determination, the fault is determined by using the air temperature change of the drying heating pipe under continuous heating. The air temperature change refers to the air temperature change in the process of the drying heating pipe under continuous heating, which includes the air temperature collected in the process of the drying heating pipe under continuous heating, and does not include the air temperature under the state of the drying heating pipe not being heated.

[0075] Based on the fault determination condition determination process described in the above step 301, the process of detecting the fault using the fault determination condition can be divided into two detection modes, and the two detection modes will be introduced below.

[0076] Referring to FIG. 4, Figure 4 as shown in the figure, it is one of the specific implementation flowcharts of the drying heating fault detection, which includes the following steps:

[0077] Step 401: acquiring the air temperature change of the drying heating pipe under continuous heating according to the fact that the air temperature in the current washing tub is less than the preset temperature.

[0078] In the drying process, the working process of the drying heating pipe is usually to heat for a period of time, stop heating for a period of time, and repeat the cycle to maintain the air temperature in the washing tub within a range. Therefore, in order to realize the fault detection of the drying heating pipe, the air temperature change during the continuous heating of the drying heating pipe needs to be obtained, rather than the air temperature change during the stop heating of the drying heating pipe.

[0079] For the process of obtaining the air temperature change during the continuous heating of the drying heating pipe, in a specific embodiment, when the drying heating pipe is in the heating state, the heating duration is started to be counted, and the air temperature at the beginning of counting is recorded. Then, during the process of maintaining the heating state of the drying heating pipe unchanged, it is checked in real time whether the counted heating duration reaches a first preset duration. When the counted heating duration reaches the first preset duration, the heating duration counting is ended, and the air temperature at the end of counting is recorded, so as to take the recorded air temperature at the beginning of counting and the recorded air temperature at the end of counting as the air temperature change.

[0080] The first preset duration is the counting time of the continuous heating of the drying heating pipe. By using the continuous heating counting method for a certain duration, the problem of short-term temperature not rising caused by water entering the washing tub can be reduced. Since the fault determination condition is either that the air temperature rise value is lower than a certain threshold value or that the air temperature drop value exceeds a certain threshold value, only the air temperature at the beginning of counting and the air temperature at the end of counting need to be recorded, and the air temperature collected during the whole counting process does not need to be recorded.

[0081] It should be noted that, in order to further reduce the problem of continuous temperature drop caused by water entering the washing tub, the air temperature in the washing tub is detected and determined in real time during the process of counting the heating duration of the drying heating pipe. If the air temperature continuously drops, the previously counted heating duration is cleared, the heating duration is started to be counted again, and the air temperature at the beginning of counting is recorded again. Then, during the process of maintaining the heating state of the drying heating pipe unchanged, it is checked in real time whether the counted heating duration reaches a second preset duration. When the counted heating duration reaches the second preset duration, the heating duration counting is ended, and the air temperature at the end of counting is recorded, so as to take the recorded air temperature at the beginning of counting and the recorded air temperature at the end of counting as the air temperature change.

[0082] The second preset time length is also a statistical time of the continuous heating of the drying heating pipe. In the case that the air temperature is less than the preset temperature, since the temperature rising condition of the continuous heating of the drying heating pipe is determined, if the air temperature continuously decreases during the statistical process, it is indicated that water is likely to enter the washing tub, so that the air temperature in the washing tub does not rise but decreases. In order to avoid the result that the temperature rising is less than the first threshold value when the statistical end time of the first preset time length is reached, the continuous heating time of the drying heating pipe is restarted to be counted, and the heating time is increased, that is, the first preset time length is less than the second preset time length, so as to reduce the influence of the water entering the washing tub on the air temperature.

[0083] Meanwhile, when the continuous heating time of the drying heating pipe is restarted to be counted, since the air temperature at the time of restarting to be counted is lower than the air temperature at the time of originally recording the starting to be counted, the air temperature at the time of starting to be counted needs to be recorded again.

[0084] Step 402: determining a temperature rising value based on the air temperature change condition.

[0085] If the current air temperature in the washing tub is less than the preset temperature, it is indicated that the current air temperature in the washing tub is in a stage which is easy to rise, so that the temperature rising value is determined to detect the fault.

[0086] Optionally, the difference between the air temperature at the time of ending to be counted and the air temperature at the time of starting to be counted can be taken as the temperature rising value. That is, if the difference is a positive value, it is indicated that the air temperature rises during the continuous heating of the drying heating pipe, and if the difference is a negative value, it is indicated that the air temperature does not rise but decreases during the continuous heating of the drying heating pipe.

[0087] Step 403: determining that the fault determination condition is met according to the temperature rising value being less than the first threshold value.

[0088] If the temperature rising value is less than the first threshold value, it is indicated that the rising space of the air temperature is low even in the case that the air temperature is less than the preset temperature, so that the drying heating pipe fault can be determined without any doubt.

[0089] Specifically, in the case that the difference between the air temperature at the time of ending to be counted and the air temperature at the time of starting to be counted is a positive value and is less than the first threshold value, or the difference is a negative value, it is determined that the fault determination condition is met.

[0090] Thus far, the detection process shown in the figure is completed. Figure 4 The detection process shown in the figure is completed. In the case that the air temperature in the washing tub is less than the preset temperature, the temperature rising value during the continuous heating of the drying heating pipe is obtained to detect the drying heating fault, that is, when the temperature rising value is less than the first threshold value, the drying heating pipe fault is determined, so as to improve the fault determination accuracy.

[0091] Referring to Figure 5 shown is another drying heating fault detection specific implementation flowchart, including the following steps:

[0092] Step 501: According to the current air temperature in the washing tub being greater than or equal to a preset temperature, obtain the air temperature change condition of the drying heating pipe continuous heating.

[0093] For the process of obtaining the air temperature change condition of the drying heating pipe continuous heating, in a specific embodiment, when the drying heating pipe is in a heating state, start to count the heating duration, and record the air temperature at the beginning of the counting, then during the drying heating pipe maintaining the same heating state, check in real time whether the counted heating duration reaches a third preset duration, when the counted heating duration reaches the third preset duration, end the heating duration counting, and record the air temperature at the end of the counting, so as to take the recorded air temperature at the beginning of the counting and the recorded air temperature at the end of the counting as the air temperature change condition.

[0094] Among them, the third preset duration is also the counting time of the drying heating pipe continuous heating, and under the condition that the air temperature is greater than or equal to the preset temperature, it is also a continuous heating counting method using a certain duration, so as to reduce the problem of short-term temperature not rising caused by water entering the washing tub.

[0095] It should be noted that the third preset duration can be the same as the first preset duration or the second preset duration, or can be different, which is not limited in the present application.

[0096] Step 502: Determine the temperature drop value based on the air temperature change condition.

[0097] Among them, if the current air temperature in the washing tub is greater than or equal to the preset temperature, it means that the current air temperature in the washing tub is in a stage that is difficult to improve, so the temperature drop value is determined to detect the fault.

[0098] Optionally, the difference between the air temperature at the end of the counting and the air temperature at the beginning of the counting can be taken as the temperature drop value. That is, if the difference is positive, it means that the air temperature rises during the drying heating pipe continuous heating, and if the difference is negative, it means that the air temperature drops during the drying heating pipe continuous heating.

[0099] Step 503: Determine that the fault determination condition is met according to the temperature drop value exceeding a second threshold value.

[0100] Among them, if the temperature drop value exceeds the second threshold value, it means that under the condition that the air temperature is greater than or equal to the preset temperature, the degree of air temperature drop exceeds that of the low-voltage heating, which can be determined as the drying heating pipe fault without any doubt.

[0101] Specifically, when the difference between the air temperature at the end of the statistics and the air temperature at the beginning of the statistics is negative and the absolute value of the difference exceeds the second threshold, it is determined that the fault determination condition is met.

[0102] So far, the drying heating fault detection process shown in the above Figure 5 is completed. In the case where the air temperature in the washing tub is greater than or equal to the preset temperature, the temperature drop value during the continuous heating of the drying heating pipe is obtained to detect the drying heating fault. That is, when the temperature drop value exceeds the second threshold, it is determined that the drying heating pipe is faulty, so as to improve the accuracy of fault determination.

[0103] It should be noted that the above Figure 4 and Figure 5 shown air temperature change acquisition logic is only to collect the air temperature change according to the original drying heating pipe control process in the drying process, and does not change the original drying heating pipe control process.

[0104] So far, the drying heating fault detection process shown in the above Figure 3 is completed. In the drying process, first, the fault determination condition of the drying heating pipe is determined according to the current air temperature in the washing tub. Since the fault determination condition of the drying heating pipe is related to the current air temperature in the washing tub, rather than always using the air temperature rise after heating to determine the drying heating pipe fault condition in the traditional scheme, the fault determination condition according to the air temperature can avoid the false judgment problem of the drying heating pipe fault caused by the water entering the washing tub due to abnormal conditions in the drying process. Then, whether the air temperature change during the continuous heating of the drying heating pipe meets the fault determination condition is determined to improve the accuracy of drying heating pipe fault detection.

[0105] Based on the above Figures 3 to 5 shown embodiment, the drying heating fault detection scheme will be explained and described with a specific example.

[0106] Suppose the preset temperature is 60 degrees, the first preset time is 10 minutes, the second preset time is 20 minutes, the third preset time is 20 minutes, the first threshold is 2 degrees, and the second threshold is also 2 degrees.

[0107] In the drying heating fault detection, if the air temperature in the washing tub is less than 60 degrees, when the drying heating tube is in the heating state, the heating time is started to be counted, when the heating time is counted to 10 minutes and the air temperature does not continuously decrease during the counting, the temperature rising value in the counting process is determined, if the temperature rising value is less than 2 degrees, it is determined that the drying heating tube is faulty, otherwise it is indicated that the drying heating tube is not faulty; when the air temperature continuously decreases during the counting, the heating time is started to be counted again, and when the counted heating time reaches 20 minutes, the temperature rising value in the re-counting process is determined, if the temperature rising value is less than 2 degrees, it is determined that the drying heating tube is faulty, otherwise it is indicated that the drying heating tube is not faulty.

[0108] If the air temperature in the washing tub is greater than or equal to 60 degrees, when the drying heating tube is in the heating state, the heating time is started to be counted, when the heating time is counted to 20 minutes, the temperature decreasing value in the counting process is determined, if the temperature decreasing value exceeds 2 degrees, it is determined that the drying heating tube is faulty, otherwise it is indicated that the drying heating tube is not faulty.

[0109] The embodiment of the present application also provides a drying heating fault detection device corresponding to the drying heating fault detection method provided by the foregoing embodiment, to execute the drying heating fault detection method.

[0110] Figure 6 A hardware structure diagram of a drying heating fault detection device of a clothes processing device according to an exemplary embodiment of the present application is shown, the drying heating fault detection device comprises a communication interface 701, a processor 702, a memory 703 and a bus 704; wherein the communication interface 701, the processor 702 and the memory 703 complete the communication among each other through the bus 704. The processor 702 can execute the drying heating fault detection method described above by reading and executing the machine executable instructions corresponding to the control logic of the drying heating fault detection method in the memory 703, the specific content of the method is described in the foregoing embodiment, and will not be repeated here.

[0111] The memory 703 mentioned in the present application can be any electronic, magnetic, optical or other physical storage device, and can contain stored information such as executable instructions, data, etc. Specifically, the memory 703 can be a RAM (Random Access Memory), a flash memory, a storage drive (such as a hard disk drive), any type of storage disk (such as an optical disk, a DVD, etc.), or a similar storage medium, or a combination thereof. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 701 (which can be wired or wireless), and the Internet, a wide area network, a local network, a metropolitan area network, etc. can be used.

[0112] The bus 704 can be an ISA bus, a PCI bus, or an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. Among them, the memory 703 is used to store programs, and the processor 702 executes the programs after receiving execution instructions.

[0113] The processor 702 can be an integrated circuit chip with processing capability. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware in the processor 702 or the instruction in the form of software. The processor 702 described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; It can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. Each method, step and logic block disclosed in the embodiment of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiment of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution.

[0114] The drying heating fault detection device provided by the embodiment of the present application and the drying heating fault detection method provided by the embodiment of the present application have the same beneficial effects as the method they adopt, run or implement.

[0115] The embodiment of the present application also provides a computer readable storage medium corresponding to the drying heating fault detection method provided by the foregoing embodiment. Please refer to Figure 7 As shown in the figure, the computer readable storage medium shown is an optical disc 30, and a computer program (i.e. program product) is stored on the optical disc 30. When the computer program is run by the processor, the drying heating fault detection method provided by any of the foregoing embodiments will be executed.

[0116] It should be noted that examples of the computer readable storage medium can also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other optical, magnetic storage medium, which will not be described one by one here.

[0117] The computer readable storage medium provided by the above embodiments of the present application has the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0118] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0119] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A drying heating failure detection method characterized by, The method comprises: determining a fault determination condition according to a size relationship between an air temperature in a current washing tub and a preset temperature; the preset temperature is a temperature used to achieve a demarcation determination to distinguish use of the fault determination condition; determining a drying heating tube fault according to the fault determination condition being met by an air temperature change condition of the drying heating tube continuously heating; the determining of the fault determination condition according to the size relationship between the air temperature in the current washing tub and the preset temperature comprises: determining the fault determination condition to be an air temperature rise value being lower than a first threshold according to the air temperature in the current washing tub being less than the preset temperature; determining the fault determination condition to be an air temperature drop value exceeding a second threshold according to the air temperature in the current washing tub being greater than or equal to the preset temperature.

2. The method of claim 1, wherein, the determining of the drying heating tube fault according to the fault determination condition being met by the air temperature change condition of the drying heating tube continuously heating comprises: obtaining the air temperature change condition of the drying heating tube continuously heating according to the air temperature in the current washing tub being less than the preset temperature; determining a temperature rise value based on the air temperature change condition; determining that the fault determination condition is met according to the temperature rise value being lower than the first threshold.

3. The method of claim 2, wherein, the obtaining of the air temperature change condition of the drying heating tube continuously heating comprises: starting to count a heating duration and recording an air temperature at a start counting time according to the drying heating tube being in a heating state; ending the heating duration counting and recording an air temperature at an end counting time according to the counted heating duration reaching a first preset duration while the drying heating tube maintaining the heating state unchanged; taking the recorded air temperature at the start counting time and the recorded air temperature at the end counting time as the air temperature change condition.

4. The method of claim 3, wherein, the method further comprises: restarting the heating duration counting and re-recording an air temperature at a start counting time according to a continuous drop of the air temperature while the heating duration of the drying heating tube is being counted; ending the heating duration counting and recording an air temperature at an end counting time according to the counted heating duration reaching a second preset duration; taking the re-recorded air temperature at the start counting time and the air temperature at the end counting time as the air temperature change condition; wherein the first preset duration is less than the second preset duration.

5. The method of claim 1, wherein, the determining of the drying heating tube fault according to the fault determination condition being met by the air temperature change condition of the drying heating tube continuously heating comprises: obtaining the air temperature change condition of the drying heating tube continuously heating according to the air temperature in the current washing tub being greater than or equal to the preset temperature; determining a temperature drop value based on the air temperature change condition; determining that the fault determination condition is met according to the temperature drop value exceeding the second threshold.

6. The method of claim 5, wherein, the obtaining of the air temperature change condition of the drying heating tube continuously heating comprises: starting to count a heating duration and recording an air temperature at a start counting time according to the drying heating tube being in a heating state; ending the heating duration counting and recording an air temperature at an end counting time according to the counted heating duration reaching a third preset duration while the drying heating tube maintaining the heating state unchanged; The air temperature at the beginning of the recording and the air temperature at the end of the recording are recorded as the air temperature change.

7. A drying heating fault detection apparatus, the apparatus comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, The processor, when executing the computer program, realizes the steps of the method as claimed in any one of claims 1-6. 8.A laundry treating apparatus, characterized by, Comprising: The drying heating fault detection device as claimed in claim 7; A temperature sensor is arranged at the air outlet of the drying channel of the clothes treatment device, and is used to collect the air temperature of the air heated by the drying heating pipe in the drying channel.

9. A computer readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to realize the steps of the method as claimed in any one of claims 1-6.

Images