CN116103903A

CN116103903A - Clothes processing device, drying and heating fault detection method and device and storage medium

Info

Publication number: CN116103903A
Application number: CN202310132296.1A
Authority: CN
Inventors: 周翔宇; 蒋佳伟; 杨名; 丁江龙; 刘豹
Original assignee: Wuxi Filin Electronics Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd; Wuxi Filin Electronics Co Ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-05-12

Abstract

The invention discloses a clothes treatment device, a drying and heating fault detection method and device and a storage medium, wherein the method comprises the following steps: determining a fault judgment condition according to the current air temperature in the washing barrel; and determining that the drying heating pipe fails according to the condition that the temperature change condition of the air heated by the drying heating pipe continuously meets the failure judgment condition. In the drying process, as the failure judgment condition of the drying heating pipe is related to the air temperature of the current washing barrel, rather than the condition that the temperature rising condition of heated air is not satisfied all the time in the traditional scheme, the failure judgment condition is determined according to the air temperature, so that the problem of misjudgment of the failure of the drying heating pipe caused by water entering the washing barrel due to abnormal conditions in the drying process can be avoided; and then, judging whether the change condition of the air temperature continuously heated by the drying heating pipe meets the fault judging condition or not so as to improve the fault detection accuracy of the drying heating pipe.

Description

Clothes processing device, drying and heating fault detection method and device and storage medium

Technical Field

The invention relates to the technical field of intelligent home, in particular to a clothes treatment device, a drying and heating fault detection method, a drying and heating fault detection device and a storage medium.

Background

At present, a clothes processing device is added with a drying function in the clothes processing process, and compared with a clothes processing device with a washing function, the clothes processing device with the drying function is added with a drying module, and the drying module comprises a drying tunnel air inlet temperature sensor, a drying tunnel air outlet temperature sensor, a drying heating pipe and a drying fan.

In the related art, when the clothes processing device enters a drying process, a temperature sensor at an air outlet of a drying tunnel detects the temperature of air heated by a drying heating pipe, and the failure of the drying heating pipe is judged according to the fact that the temperature rise condition of the heated air does not meet certain requirements.

However, if the water in the washing tub enters due to abnormal conditions in the heating process of the drying heating pipe, the temperature rising condition of the air detected by the temperature sensor at the air outlet of the drying channel does not meet certain requirements, and the error judgment is that the drying heating pipe is out of order.

Therefore, the existing drying and heating fault detection scheme has the problem of low accuracy.

Disclosure of Invention

The present invention aims to solve the above-mentioned shortcomings of the prior art, and provides a clothes treatment device, a drying and heating fault detection method, a drying and heating fault detection device and a storage medium.

The first aspect of the present invention provides a method for detecting a drying and heating failure, the method comprising:

determining a fault judgment condition according to the current air temperature in the washing barrel;

and determining the faults of the drying heating pipes according to the condition that the temperature change condition of the air heated by the drying heating pipes continuously meets the fault judging conditions.

In some embodiments of the present application, the determining a fault determination condition according to the current air temperature in the tub includes:

according to the fact that the air temperature in the current washing barrel is smaller than the preset temperature, determining that the fault judging condition is that the rising value of the air temperature is lower than a first threshold value;

and determining that the fault judgment condition is that the reduction value of the air temperature exceeds a second threshold value according to the fact that the air temperature in the current washing barrel is larger than or equal to the preset temperature.

In some embodiments of the present application, the air temperature change condition according to continuous heating of the drying heating pipe satisfies the fault determination condition, including:

according to the fact that the temperature of the air in the current washing barrel is smaller than the preset temperature, the air temperature change condition that the drying heating pipe continuously heats is obtained;

determining a temperature rise value based on the air temperature change condition;

and determining that the fault judging condition is met according to the fact that the temperature rising value is lower than a first threshold value.

In some embodiments of the present application, the acquiring the air temperature change condition of the continuous heating of the drying heating pipe includes:

according to the heating state of the drying heating pipe, starting to count the heating time length, and recording the air temperature when starting to count;

in the process that the heating state of the drying heating pipe is kept unchanged, according to the counted heating time length, reaching a first preset time length, ending the heating time length counting, and recording the air temperature when the counting is ended;

the air temperature at the time of the recorded start statistics and the air temperature at the time of the recorded end statistics are taken as the air temperature change conditions.

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

in the process of counting the heating time of the drying heating pipe, restarting counting the heating time according to the condition that the air temperature continuously drops, and restarting recording the air temperature at the beginning of counting;

ending the statistics of the heating time length according to the counted heating time length reaching a second preset time length, and recording the air temperature when the statistics is ended;

taking the re-recorded air temperature at the time of starting statistics and the re-recorded air temperature at the time of ending statistics as the air temperature change conditions;

the first preset duration is smaller than the second preset duration.

according to the fact that the temperature of the air in the current washing barrel is larger than or equal to the preset temperature, the air temperature change condition that the drying heating pipe continuously heats is obtained;

determining a temperature drop value based on the air temperature change condition;

and determining that the fault judgment condition is met according to the fact that the temperature drop value exceeds a second threshold value.

in the process that the heating state of the drying heating pipe is kept unchanged, according to the counted heating time length reaching a third preset time length, ending the heating time length counting, and recording the air temperature when the counting is ended;

A second aspect of the present invention provides a drying and heating fault detection apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method as described in the first aspect above when executing the computer program.

A third aspect of the present invention provides a laundry treatment apparatus comprising:

the drying and heating failure detection apparatus as described in the second aspect;

the temperature sensor is arranged at the air outlet of the drying tunnel of the clothes treatment device and is used for collecting the air temperature of the air heated by the drying heating pipe in the drying tunnel.

A fourth aspect of the invention proposes a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of the method according to the first aspect described above.

Based on the clothes treatment device, the drying and heating fault detection method, the drying and heating fault detection device and the storage medium, the technical scheme of the invention has the following beneficial effects or benefits:

in the drying process, firstly, determining a failure judgment condition of a drying heating pipe according to the air temperature in the current washing barrel, wherein the failure judgment condition of the drying heating pipe is related to the air temperature of the current washing barrel, but not the failure judgment condition of the drying heating pipe which is judged by always adopting the condition that the temperature rise condition of heated air does not meet the condition in the traditional scheme, so that the failure judgment condition is determined according to the air temperature, and the problem of misjudgment of the failure of the drying heating pipe caused by water entering the washing barrel due to the abnormal condition in the drying process can be avoided; and then, judging whether the change condition of the air temperature continuously heated by the drying heating pipe meets the fault judging condition or not so as to improve the fault detection accuracy of the drying heating pipe.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram showing the influence of water in a washing tub on air temperature in a drying process according to the present invention;

fig. 2 is a schematic structural view of a laundry treating apparatus according to the present invention;

fig. 3 is a schematic flow chart of an embodiment of a method for detecting a drying and heating fault according to an exemplary embodiment of the present invention;

FIG. 4 is a flowchart of an embodiment of a drying and heating fault detection according to the present invention;

FIG. 5 is a flowchart showing another embodiment of the present invention for detecting a drying and heating failure according to the embodiment shown in FIG. 3;

fig. 6 is a schematic structural view of a drying heating fault detection device according to an exemplary embodiment of the present invention;

fig. 7 is a schematic diagram illustrating a structure of a storage medium according to an exemplary embodiment of the present invention.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.

Referring to fig. 1, the horizontal axis represents the heating time T of the drying heating pipe, and the vertical axis represents the air temperature T in the tub. As can be seen from FIG. 1, after the air temperature rises for a period of time of 0-t1, some cold water enters the washing tub due to abnormal conditions, so that the air temperature in the washing tub cannot rise, and the air temperature starts to rise gradually after a period of time of t1-t 2.

If the traditional fault detection scheme is adopted, the temperature rising condition of the air in a period of time t1-t2 after cold water enters the washing barrel does not meet certain requirements, the software logic considers that the drying heating pipe is faulty, but the drying heating pipe is actually not faulty, and cold water enters the washing barrel, so that the problem of misjudgment of the drying heating pipe is caused.

The distance is to the clothing processing apparatus of upper and lower barrel model, uses upper barrel washing clothing, uses the barrel stoving clothing down, in the stoving in-process, because the water of barrel can get into down the barrel in the unusual condition, the condition of cooling down when heating appears in the air temperature in the barrel down just can cause the misjudgement problem of stoving heating pipe this moment.

In order to solve the technical problem, in the embodiment of the application, the temperature sensor arranged at the air outlet of the drying tunnel in the clothes processing device is used for collecting the air temperature of the air heated by the drying heating pipe in the drying tunnel in real time, when the failure determination is carried out, the failure determination condition is determined according to the air temperature in the current washing barrel, then the failure of the drying heating pipe is determined according to the condition that the air temperature continuously heated by the drying heating pipe changes to meet the failure determination condition.

Referring to fig. 2, the laundry treating apparatus includes a washing tub 10, a drying heating pipe 20 provided in a drying tunnel, and a temperature sensor 30 provided at an air outlet of the drying tunnel.

It should be noted that, because the clothes treating apparatus belongs to an internal circulation system, air exhausted from the washing tub 10 enters the drying tunnel from the air inlet of the drying tunnel, is heated by the drying heating pipe 20 in the drying tunnel, and is exhausted from the air outlet of the drying tunnel and enters the washing tub 10 again to dry clothes, so that the air temperature collected by the temperature sensor 30 at the air outlet of the drying tunnel can directly reflect the air temperature in the washing tub 10.

Based on the above description, the method and the device realize accurate detection of the drying and heating faults by upgrading the software processing logic through design on the basis of not changing the original hardware logic, and avoid the problem of misjudgment of the drying and heating pipes. In the drying process, firstly, determining a failure judgment condition of a drying heating pipe according to the air temperature in a current washing barrel, wherein the failure judgment condition of the drying heating pipe is related to the air temperature of the current washing barrel, but not the failure judgment condition of the drying heating pipe which is judged by always adopting the condition that the temperature rise condition of heated air does not meet the condition in the traditional scheme, so that the failure judgment condition is determined according to the air temperature, and the problem of misjudgment of the failure of the drying heating pipe caused by water entering the washing barrel due to the abnormal condition in the drying process can be avoided; and then, judging whether the change condition of the air temperature continuously heated by the drying heating pipe meets the fault judging condition or not so as to improve the fault detection accuracy of the drying heating pipe.

In order to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in connection with specific embodiments of drying and heating fault detection.

Embodiment one:

fig. 3 is a flowchart illustrating an embodiment of a method for detecting a drying and heating fault according to an exemplary embodiment of the present invention, the method being applied to the laundry treating apparatus shown in fig. 2, and as shown in fig. 3, the method for detecting a drying and heating fault includes the steps of:

step 301: a malfunction determination condition is determined based on the current temperature of the air in the tub.

The temperature currently acquired by the temperature sensor at the air outlet of the drying tunnel can be taken as the air temperature in the washing barrel.

In this embodiment, by determining the failure determination condition of the drying heating pipe according to the air temperature in the current washing tub, since the failure determination condition of the drying heating pipe is related to the air temperature of the current washing tub, rather than determining the failure condition of the drying heating pipe by always adopting the condition that the temperature rising condition of the heated air does not satisfy in the conventional scheme, the failure determination condition is determined according to the air temperature, so that the problem of misjudgment of the failure of the drying heating pipe caused by water entering the washing tub due to the abnormal condition in the drying process can be avoided.

In the design stage of the fault judging condition, according to practical experience, when the air temperature in the washing barrel is heated to a certain degree, the air temperature rises slowly under the condition of low voltage at high temperature, even though the drying heating pipe is heated, so the application distinguishes the use of the fault judging condition by pre-configuring a temperature for realizing demarcation judgment.

The preset temperature is used for indicating the upper temperature limit value with high temperature rise rate in the process of heating air by the drying heating pipe, and the upper temperature limit value can be obtained through a large number of experimental tests. That is, the air temperature rises relatively quickly in the heating state of the drying heating pipe when the air temperature is below the preset temperature, and relatively slowly in the heating state of the drying heating pipe when the air temperature is above the preset temperature.

For the specific implementation process of step 301, in an alternative embodiment, the air temperature in the current washing tub may be compared with a preset temperature, and 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 rising value of the air temperature is lower than the first threshold; if the air temperature in the current washing tub is greater than or equal to the preset temperature, determining that the fault determination condition is that the drop value of the air temperature exceeds the second threshold value.

In this embodiment, when the air temperature is lower than the preset temperature, the air temperature rises relatively quickly under normal conditions, and even if water enters the washing tub under abnormal conditions, the air temperature rises to some extent under the heating state of the drying heating pipe, so that the failure determination condition adopts that the air temperature rise value is lower than a certain threshold value, and then the failure determination condition determines that the drying heating pipe fails. Under the condition that the air temperature is greater than or equal to the preset temperature, the air temperature rises slowly under the normal condition, and if water enters the washing barrel, the air temperature is not rising all the time or even is reduced under the heating state of the drying heating pipe, and in order to reduce misjudgment, the fault judgment condition adopts that the air temperature reduction value is higher than a certain threshold value, and then the drying heating pipe is judged to be faulty.

It is to be understood that the first threshold value used for determining the rising value of the air temperature and the second threshold value used for determining the falling value of the air temperature may be the same or different, and this is not particularly limited in this application.

Step 302: and determining the failure of the drying heating pipe according to the condition that the change of the air temperature continuously heated by the drying heating pipe meets the failure judgment condition.

Wherein, in order to ensure the accuracy of fault determination, the fault is determined by using the air temperature variation condition of the drying heating pipe continuously heated. The air temperature change condition refers to air temperature change in the continuous heating process of the drying heating pipe, and comprises air temperature collected in the continuous heating process of the drying heating pipe, and does not comprise air temperature in the unheated state of the drying heating pipe.

Based on the above-described failure determination condition determining process in step 301, the process of detecting a failure using the failure determination condition may be divided into two detection modes, which are described below separately.

Referring to fig. 4, a flowchart of one embodiment of a drying and heating fault detection method includes the following steps:

step 401: and acquiring the air temperature change condition of the continuous heating of the drying heating pipe according to the fact that the air temperature in the current washing barrel is smaller than the preset temperature.

In the drying process, the heating process of the drying heating pipe is usually performed for a period of time, and then the heating process is stopped for a period of time, so that the reciprocating operation is circulated to maintain the air temperature in the washing tub within a range, so that in order to realize the fault detection of the drying heating pipe, the air temperature change condition of the drying heating pipe in the continuous heating process is required to be obtained, but not the air temperature change condition of the drying heating pipe in the stop heating process is required to be obtained.

Aiming at the process of acquiring the air temperature change condition of continuously heating the drying heating pipe, in a specific embodiment, when the drying heating pipe is in a heating state, counting the heating time length, recording the air temperature at the beginning of counting, and then checking whether the counted heating time length reaches a first preset time length in real time when the drying heating pipe is in a heating state maintaining process, ending the counting of the heating time length when the counted heating time length reaches the first preset time length, recording the air temperature at the ending of counting, and taking the recorded air temperature at the beginning of counting and the recorded air temperature at the ending of counting as the air temperature change condition.

The first preset time length is the statistic time of continuous heating of the drying heating pipe, and the problem that water enters the washing barrel to cause short-term temperature can be reduced by using a continuous heating statistic mode with a certain time length. The fault judgment condition is that the rising value of the air temperature is lower than a certain threshold value or the falling value of the air temperature exceeds a certain threshold value, so that only the air temperature at the time of starting statistics and the air temperature at the time of ending statistics are recorded, and the air temperature acquired in the whole statistics process does not need to be recorded.

In order to further reduce the problem of continuous temperature drop caused by water entering the washing barrel, detecting and judging the air temperature in the washing barrel in real time in the process of counting the heating time of the drying heating pipe, resetting the previously counted heating time if the condition of continuous air temperature drop occurs, restarting counting the heating time, and restarting the air temperature when counting, and then checking whether the counted heating time reaches a second preset time in real time in the process of keeping the heating state of the drying heating pipe unchanged, ending the counting of the heating time when the counted heating time reaches the second preset time, and recording the air temperature when ending the counting, thereby taking the air temperature when restarting the counting and the air temperature when ending the counting as the air temperature change condition;

the second preset duration is also the statistical time for continuously heating the drying heating pipe, under the condition that the air temperature is smaller than the preset temperature, because the condition that the temperature of the drying heating pipe continuously heats is judged to be raised is judged, if the condition that the air temperature continuously drops occurs in the statistical process, the condition that water enters the washing barrel is likely to enter the washing barrel, so that the air temperature in the washing barrel does not rise but drops, and in order to avoid the result that the temperature rise is smaller than a first threshold value due to the fact that the statistical ending time of the first preset duration is reached at the moment, the continuous heating duration of the drying heating pipe is counted again, and the heating duration is increased, namely the first preset duration is smaller than the second preset duration, so that the influence of the water entering the washing barrel on the air temperature is reduced.

Meanwhile, when the continuous heating time of the drying heating pipe is counted again, the air temperature at the time of starting counting is lower than the air temperature at the time of starting counting which is recorded originally, so that the air temperature at the time of starting counting needs to be recorded again.

Step 402: a temperature rise value is determined based on the air temperature change condition.

Wherein, if the air temperature in the current washing tub is less than the preset temperature, it is indicated that the air temperature in the current washing tub is in a stage that is relatively easy to be raised, so that the malfunction is detected by determining the temperature rise value.

Alternatively, the difference of the air temperature at the end of the statistics minus the air temperature at the start of the statistics may be used as the temperature rise value. That is, if the difference is a positive value, it indicates that the air temperature increases during the continuous heating process of the drying heating pipe, and if the difference is a negative value, it indicates that the air temperature does not increase but decreases during the continuous heating process of the drying heating pipe.

Step 403: and determining that the fault judgment condition is met according to the fact that the temperature rising value is lower than the first threshold value.

Wherein, if the temperature rising value is lower than the first threshold value, it means that the rising space of the air temperature is very low even in the case of being lower than the preset temperature, and it can be determined as a drying heating pipe failure without doubt.

Specifically, it is determined that the failure determination condition is satisfied in the case where the difference of the air temperature at the time of ending the statistics minus the air temperature at the time of starting the statistics is a positive value and is lower than the first threshold value, or the difference is a negative value.

So far, the detection flow shown in fig. 4 is completed, and under the condition that the air temperature in the washing barrel is smaller than the preset temperature, the drying heating fault detection is performed by acquiring the temperature rising value in the continuous heating process of the drying heating pipe, namely, when the temperature rising value is lower than the first threshold value, the drying heating pipe fault is determined, so that the fault judgment accuracy is improved.

Referring to fig. 5, another implementation flowchart of the drying and heating fault detection is shown, which includes the following steps:

step 501: and acquiring the air temperature change condition of the continuous heating of the drying heating pipe according to the fact that the air temperature in the current washing barrel is greater than or equal to the preset temperature.

Aiming at the process of acquiring the air temperature change condition of continuously heating the drying heating pipe, in a specific embodiment, when the drying heating pipe is in a heating state, counting the heating time length, recording the air temperature at the beginning of counting, and then checking whether the counted heating time length reaches a third preset time length in real time when the drying heating pipe is in a heating state maintaining process, ending the counting of the heating time length when the counted heating time length reaches the third preset time length, recording the air temperature at the ending of counting, and taking the recorded air temperature at the beginning of counting and the recorded air temperature at the ending of counting as the air temperature change condition.

The third preset duration is also the statistic time of continuous heating of the drying heating pipe, and under the condition that the air temperature is greater than or equal to the preset temperature, the continuous heating statistic mode with a certain duration is also used, so that the problem that water enters the washing barrel to cause short-term temperature is avoided.

It should be noted that the third preset duration may be the same as the first preset duration or the second preset duration, or may be different, which is not specifically limited in this application.

Step 502: the temperature drop value is determined based on the air temperature change condition.

If the temperature of the air in the current washing barrel is larger than or equal to the preset temperature, the temperature of the air in the current washing barrel is in a phase which is difficult to raise, and therefore the fault is detected by determining the temperature drop value.

Alternatively, the difference of the air temperature at the end of the statistics minus the air temperature at the start of the statistics may be taken as the temperature drop value. That is, if the difference is a positive value, it indicates that the air temperature increases during the continuous heating of the drying heating pipe, and if the difference is a negative value, it indicates that the air temperature decreases during the continuous heating of the drying heating pipe.

Step 503: and determining that the fault judgment condition is met according to the fact that the temperature drop value exceeds the second threshold value.

If the temperature drop value exceeds the second threshold value, the air temperature drop degree exceeds the low-voltage heating condition under the condition of being larger than or equal to the preset temperature, and the drying heating pipe fault can be determined undoubtedly.

Specifically, the difference of the air temperature at the time of ending the statistics minus the air temperature at the time of starting the statistics is a negative value and the absolute value of the difference exceeds a second threshold, determining that the failure determination condition is satisfied.

So far, the detection flow shown in fig. 5 is completed, and under the condition that the temperature of the air in the washing barrel is greater than or equal to the preset temperature, the drying heating fault detection is performed by acquiring the temperature drop value in the continuous heating process of the drying heating pipe, namely, when the temperature drop value exceeds the second threshold value, the drying heating pipe fault is determined, so that the fault judgment accuracy is improved.

It should be noted that, the logic for acquiring the air temperature change condition shown in fig. 4 and fig. 5 just acquires the air temperature change condition according to the original control flow of the drying heating pipe in the drying process, and does not change the original control flow of the drying heating pipe.

Thus, the drying and heating fault detection flow shown in fig. 3 is completed, in the drying process, firstly, the fault judgment condition of the drying and heating pipe is determined according to the air temperature in the current washing barrel, and the fault judgment condition of the drying and heating pipe is related to the air temperature of the current washing barrel, but the condition that the temperature rise condition of heated air is not satisfied is always adopted in the traditional scheme to judge the fault condition of the drying and heating pipe, so that the problem of misjudgment of the fault of the drying and heating pipe caused by water entering the washing barrel due to the abnormal condition in the drying process can be avoided by determining the fault judgment condition according to the air temperature; and then, judging whether the change condition of the air temperature continuously heated by the drying heating pipe meets the fault judging condition or not so as to improve the fault detection accuracy of the drying heating pipe.

Based on the embodiments shown in fig. 3 to 5 described above, a drying heating failure detection scheme will be explained below with a specific example.

Assuming that the preset temperature is 60 degrees, the first preset time period is 10 minutes, the second preset time period is 20 minutes, the third preset time period is 20 minutes, the first threshold value is 2 degrees, and the second threshold value is 2 degrees.

When the drying and heating fault detection is carried out, if the air temperature in the washing barrel is smaller than 60 ℃, when the drying and heating pipe is in a heating state, starting to count the heating time, and when the heating time is counted to 10 minutes and the condition that the air temperature continuously drops does not occur during the counting period, determining a temperature rising value in the counting process, if the temperature rising value is lower than 2 ℃, judging that the drying and heating pipe is faulty, otherwise, indicating that the drying and heating pipe is not faulty; and when the condition that the air temperature continuously drops during the statistics period occurs, restarting to count the heating time, and when the counted heating time reaches 20 minutes, determining a temperature rising value in the process of restarting the statistics, if the temperature rising value is lower than 2 ℃, judging that the drying heating pipe is faulty, otherwise, indicating that the drying heating pipe is not faulty.

If the temperature of the air in the washing barrel is more than or equal to 60 ℃, when the drying heating pipe is in a heating state, starting to count the heating time, when the heating time is counted to 20 minutes, determining a temperature reduction value in the counting process, if the temperature reduction value exceeds 2 ℃, judging that the drying heating pipe is faulty, otherwise, indicating that the drying heating pipe is not faulty.

The embodiment of the invention also provides a drying and heating fault detection device corresponding to the drying and heating fault detection method provided by the previous embodiment, so as to execute the drying and heating fault detection method.

Fig. 6 is a hardware configuration diagram of a drying heating fault detection apparatus of a laundry treating apparatus according to an exemplary embodiment of the present invention, the drying heating fault detection apparatus including: 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 perform communication with each other via a bus 704. The processor 702 may perform the above-described drying heating fault detection method by reading and executing machine executable instructions in the memory 703 corresponding to the control logic of the drying heating fault detection method, the details of which are referred to in the above-described embodiments and will not be described again here.

The memory 703 referred to in the present invention may be any electronic, magnetic, optical, or other physical storage device that may contain stored information, such as executable instructions, data, or the like. In particular, the memory 703 may be RAM (Random Access Memory ), flash memory, a storage drive (e.g., hard drive), any type of storage disk (e.g., optical disk, 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 implemented via at least one communication interface 701 (which may be wired or wireless), which may use the internet, a wide area network, a local network, a metropolitan area network, etc.

Bus 704 may be an ISA bus, a PCI bus, an EISA bus, or the like. The buses may be classified as address buses, data buses, control buses, etc. The memory 703 is used for storing a program, and the processor 702 executes the program after receiving an execution instruction.

The processor 702 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the methods described above may be performed by integrated logic circuitry in hardware or instructions in software in the processor 702. The processor 702 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor.

The drying and heating fault detection device and the drying and heating fault detection method provided by the embodiment of the application are the same in the same inventive concept, and have the same beneficial effects as the method adopted, operated or realized by the device.

The present embodiment also provides a computer readable storage medium corresponding to the drying and heating fault detection method provided in the foregoing embodiment, referring to fig. 7, the computer readable storage medium is shown as an optical disc 30, and a computer program (i.e. a program product) is stored on the computer readable storage medium, where the computer program when executed by a processor performs the drying and heating fault detection method provided in any of the foregoing embodiments.

It should be noted that examples of the computer readable storage medium may also include, but are not limited to, a phase change memory (PRAM), a Static Random Access Memory (SRAM), a Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a flash memory, or other optical or magnetic storage medium, which will not be described in detail herein.

The computer readable storage medium provided by the above embodiment of the present application has the same advantages as the method adopted, operated or implemented by the application program stored therein, because of the same inventive concept as the method for detecting the drying heating failure provided by the embodiment of the present application.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.

Claims

1. A method for detecting a drying heating failure, the method comprising:

2. The method of claim 1, wherein the determining a fault determination condition based on the temperature of the air in the current tub comprises:

3. The method of claim 1, wherein the failure determination condition is satisfied according to a change in temperature of air continuously heated by the drying heating pipe, comprising:

4. A method as claimed in claim 3, wherein said obtaining a change in the temperature of the air continuously heated by said drying heating tube comprises:

5. The method of claim 4, wherein the method further comprises:

the first preset duration is smaller than the second preset duration.

6. The method of claim 1, wherein the failure determination condition is satisfied according to a change in temperature of air continuously heated by the drying heating pipe, comprising:

7. The method of claim 6, wherein said obtaining a change in air temperature of said drying heating tube for continuous heating comprises:

8. A drying and heating fault detection device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1-7 when the computer program is executed.

9. A laundry treating apparatus, comprising:

the drying and heating fault detection device as claimed in claim 8;

10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any of claims 1-7.