Dishwasher fault detection method, apparatus, dishwasher, and storage medium

Abstract

Embodiments of the present application relate to a kind of dishwasher fault detection method, device, dishwasher and storage medium, the method comprises: when the dishwasher is in heating washing process, the first temperature value corresponding to the preset first time period when the dishwasher enters water injection stage from drainage stage is acquired;The second temperature value corresponding to the preset second time period after the dishwasher is in water injection stage is acquired;If the difference between the first temperature value and the second temperature value is less than the set first temperature threshold, the dishwasher is fault alarm, by drainage stage and water injection stage in the junction, the temperature difference in a short time is judged whether the dishwasher appears drainage fault, while realizing accurate detection drainage fault, only increase temperature sensor can also reduce the cost of dishwasher.

Description

Technical Field

[0001] This invention relates to the field of smart homes, and more particularly to a dishwasher fault detection method, device, dishwasher, and storage medium. Background Technology

[0002] With the intelligent development of dishwashers, the application of various sensors has become a new highlight of dishwasher development. Currently, most dishwashers on the market detect the water level at a certain point through pressure switching devices. However, this method cannot linearly detect the water level, and therefore cannot adjust the drainage status in real time according to changes in the water level. At the same time, traditional dishwashers are set with a fixed drainage time value during operation.

[0003] If the dishwasher's drain pump malfunctions or the drain pipe becomes clogged, and the set drain time is exceeded, the dishwasher will automatically enter the water filling stage before all the wastewater has been drained, causing wastewater to overflow from the dishwasher. Summary of the Invention

[0004] In view of this, in order to solve the problem of inaccurate detection of drainage faults in dishwashers, embodiments of the present invention provide a dishwasher fault detection method, device, dishwasher, and storage medium.

[0005] In a first aspect, embodiments of the present invention provide a dishwasher fault detection method, comprising:

[0006] During the dishwasher's heating and washing process, the first temperature value corresponding to the preset first time period when the dishwasher enters the water filling stage from the drainage stage is obtained.

[0007] Obtain the second temperature value corresponding to a preset second time period after the dishwasher is in the water filling stage;

[0008] If the difference between the first temperature value and the second temperature value is less than the set first temperature threshold, a fault alarm is issued for the dishwasher.

[0009] In one possible implementation, after the step of saying that the difference between the first temperature value and the second temperature value is less than a set first temperature threshold is followed by:

[0010] Obtain the water level information inside the dishwasher;

[0011] If the water level information exceeds the preset water level threshold, a first-level fault alarm for the dishwasher will be triggered.

[0012] If the water level information does not exceed the preset water level threshold, a secondary fault alarm for the dishwasher will be triggered.

[0013] In one possible implementation, the fault alarm for the dishwasher includes:

[0014] If the dishwasher is under a Level 1 fault alarm, then control the dishwasher to stop operating;

[0015] or,

[0016] If the dishwasher is in a level 2 fault alarm state, the alarm information will be broadcast in voice and the dishwasher will be controlled to stop filling with water.

[0017] In one possible implementation, the method further includes:

[0018] Obtain the third temperature value corresponding to the third time period when the dishwasher is in the drainage stage;

[0019] If the difference between the third temperature value and the second temperature value is less than the set second temperature threshold, a fault alarm will be issued for the dishwasher.

[0020] In one possible implementation, the method further includes:

[0021] If the difference between the first temperature value and the second temperature value is greater than or equal to the set first temperature threshold, then the water injection step continues.

[0022] or,

[0023] If the difference between the third temperature value and the second temperature value is less than the set second temperature threshold, then the water injection step continues.

[0024] Secondly, embodiments of the present invention provide a dishwasher fault detection device, comprising:

[0025] The acquisition module is used to acquire the first temperature value corresponding to the first time period when the dishwasher enters the water filling stage from the draining stage during the heating and washing process.

[0026] The acquisition module is also used to acquire a second temperature value corresponding to a preset second time period after the dishwasher is in the water filling stage;

[0027] An alarm module is used to issue a fault alarm to the dishwasher if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold.

[0028] In one possible implementation, the acquisition module is further configured to acquire water level information inside the dishwasher;

[0029] The device further includes:

[0030] The triggering module is used to trigger a first-level fault alarm of the dishwasher if the water level information exceeds a preset water level threshold, and to trigger a second-level fault alarm of the dishwasher if the water level information does not exceed the preset water level threshold.

[0031] In one possible implementation, the alarm module is specifically used to control the dishwasher to stop operating if the dishwasher is in a first-level fault alarm state; or, if the dishwasher is in a second-level fault alarm state, to broadcast alarm information in the form of voice and control the dishwasher to stop filling with water.

[0032] Thirdly, embodiments of the present invention provide a dishwasher, including: a processor and a memory, wherein the processor is configured to execute a dishwasher fault detection program stored in the memory to implement the dishwasher fault detection method described in any one of the first aspects above.

[0033] Fourthly, embodiments of the present invention provide a storage medium storing one or more programs, which can be executed by one or more processors to implement the dishwasher fault detection method described in any one of the first aspects.

[0034] The dishwasher fault detection scheme provided in this invention obtains a first temperature value within a preset first time period when the dishwasher transitions from the drainage stage to the water filling stage during the heating and washing process; obtains a second temperature value within a preset second time period after the dishwasher enters the water filling stage; if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold, a fault alarm is issued for the dishwasher. By using the temperature difference within a short period of time during the transition between the drainage stage and the water filling stage, the system determines whether the dishwasher has a drainage fault. This achieves accurate detection of drainage faults while reducing the cost of the dishwasher by only adding a temperature sensor. Attached Figure Description

[0035] Figure 1 This is a flowchart illustrating a dishwasher fault detection method provided in an embodiment of the present invention.

[0036] Figure 2 This is a flowchart illustrating another dishwasher fault detection method provided in an embodiment of the present invention.

[0037] Figure 3 A flowchart illustrating another dishwasher fault detection method provided in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of a dishwasher fault detection device provided in an embodiment of the present invention;

[0039] Figure 5This is a schematic diagram of the structure of a dishwasher provided in an embodiment of the present invention. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of the present invention.

[0042] Figure 1 This is a flowchart illustrating a dishwasher fault detection method provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the method specifically includes:

[0043] S11. During the washing process of the dishwasher, obtain the first temperature value corresponding to the preset first time period when the dishwasher enters the water filling stage from the drainage stage.

[0044] The dishwasher fault detection method provided in this embodiment of the invention is applied to the detection of the dishwasher in the working state of the heating washing mode. The dishwasher typically includes multiple injection stages, washing stages and drainage stages. The fault detection in this embodiment is based on the temperature difference between the drainage stage and the water injection stage.

[0045] Furthermore, when the dishwasher is in the heating washing mode, it detects whether the dishwasher has entered the water filling stage from the drainage stage. If it is determined that the drainage stage has been completed and the water filling stage has begun, the temperature value inside the dishwasher cavity within a preset first time period is detected by a temperature sensor installed inside the dishwasher.

[0046] Specifically, the preset first time period can be the time period corresponding to the start of the water filling stage after the drainage stage is completed. For example, the first time period is the time period from when the drainage stage reaches the set drainage time value to when water begins to be filled into the dishwasher cavity.

[0047] To ensure the accuracy of temperature measurement, the temperature sensor can be placed at the bottom of the dishwasher cavity so that when water is poured into the dishwasher cavity and flows into the bottom of the cavity, the temperature sensor can quickly measure the temperature change.

[0048] S12. Obtain the second temperature value corresponding to the preset second time period after the dishwasher is in the water filling stage.

[0049] The temperature sensor obtains the second temperature value within a preset second time period after the dishwasher is in the water filling stage. For example, the temperature value at the bottom of the dishwasher cavity obtained by the temperature sensor after 2 seconds of water filling.

[0050] S13. If the difference between the first temperature value and the second temperature value is less than the set first temperature threshold, then a fault alarm is issued for the dishwasher.

[0051] It should be noted that if the dishwasher drains normally, the water in the dishwasher cavity will be completely drained during the draining stage. After entering the water filling stage, the water injected into the cavity will quickly lower the temperature inside the cavity. Conversely, if the dishwasher drains abnormally, the water in the dishwasher cavity will not be completely drained during the draining stage. After entering the water filling stage, the temperature inside the cavity will slowly decrease over a period of time.

[0052] Furthermore, if the difference between the first temperature value and the second temperature value is less than the set first temperature threshold, it is determined that the water in the dishwasher cavity has not been completely drained during the drainage stage, indicating a drainage failure in the dishwasher, and a fault alarm is issued for the dishwasher.

[0053] Specifically, the first temperature threshold can be set according to actual needs, such as 7°C. This embodiment does not impose any specific limitations on this.

[0054] The dishwasher fault detection method provided in this invention obtains a first temperature value within a preset first time period when the dishwasher transitions from the drainage stage to the water filling stage during the heating and washing process; obtains a second temperature value within a preset second time period after the dishwasher enters the water filling stage; if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold, a fault alarm is issued for the dishwasher. By using the temperature difference within a short period of time during the transition between the drainage stage and the water filling stage, the method determines whether the dishwasher has a drainage fault. While achieving accurate detection of drainage faults, the method also reduces the cost of the dishwasher by simply adding a temperature sensor.

[0055] Figure 2 This is a flowchart illustrating another dishwasher fault detection method provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the method specifically includes:

[0056] S21. During the washing process of the dishwasher, obtain the first temperature value corresponding to the preset first time period when the dishwasher enters the water filling stage from the drainage stage.

[0057] S22. Obtain the second temperature value corresponding to the preset second time period after the dishwasher is in the water filling stage.

[0058] The dishwasher fault detection method provided in this embodiment of the invention is applied to the detection of the dishwasher in the working state of the heating washing mode. The dishwasher typically includes multiple injection stages, washing stages and drainage stages. The fault detection in this embodiment is based on the temperature difference between the drainage stage and the water injection stage.

[0059] To ensure the accuracy of temperature measurement, the temperature sensor can be placed at the bottom of the dishwasher cavity so that when water is poured into the dishwasher cavity and flows into the bottom of the cavity, the temperature sensor can quickly measure the temperature change.

[0060] Furthermore, the preset first time period can be the time period corresponding to the start of the water filling stage after the drainage stage is completed. For example, the first time period is the time period from when the drainage stage reaches the set drainage time value to when water begins to be filled into the dishwasher cavity.

[0061] The preset second time period can be: when the dishwasher is in the water filling stage, a time period is set after water filling begins, for example, 2 seconds after water filling begins.

[0062] Furthermore, the first temperature value and the second temperature value can be instantaneous temperature or average temperature. For example, the first time period is the time period corresponding to the start of the water filling stage after the drainage stage is completed. This time period is 1 second. The corresponding first temperature value can be the average temperature within this 1 second or the instantaneous temperature corresponding to 1 second. The second time period is the time period set after the dishwasher is in the water filling stage and starts filling water. This time period is 2 seconds. The corresponding second temperature value can be the average temperature value within this 2 seconds or the instantaneous temperature value corresponding to 2 seconds.

[0063] S23. Determine whether the difference between the first temperature value and the second temperature value is less than the set first temperature threshold.

[0064] S24. If the difference between the first temperature value and the second temperature value is less than a set first temperature threshold, then obtain the water level information inside the dishwasher.

[0065] If the difference between the first temperature value and the second temperature value is less than the set first temperature threshold, it is determined that the water in the dishwasher cavity has not been completely drained during the drainage stage, and the water level information in the dishwasher is obtained through the pressure sensor.

[0066] For example, the first temperature threshold could be 7°C.

[0067] S25. If the water level information exceeds the preset water level threshold, a first-level fault alarm of the dishwasher is triggered.

[0068] S26. If the water level information does not exceed the preset water level threshold, then the secondary fault alarm of the dishwasher is triggered.

[0069] In this embodiment, a water level threshold is preset. This water level threshold can be set according to actual needs, such as 80% or 90%. However, this embodiment does not limit the specific value of the water level threshold.

[0070] Furthermore, if the water level exceeds a preset water level threshold, a first-level fault alarm is triggered on the dishwasher. The first-level fault alarm is the highest priority alarm (when the water level exceeds the water level threshold, continuing to add water will cause sewage to overflow from the dishwasher cavity). If the water level does not exceed the preset water level threshold, a second-level fault alarm is triggered on the dishwasher. The second-level fault alarm is a lower priority alarm (when the water level does not exceed the water level threshold, continuing to add water will not cause sewage to overflow from the dishwasher cavity for a certain period of time).

[0071] S27. If the dishwasher is in a first-level fault alarm state, control the dishwasher to stop operating.

[0072] If the dishwasher is under a Level 1 fault alarm, indicating that continued water filling will cause sewage to overflow from the dishwasher cavity, the dishwasher will be stopped, for example by cutting off the power supply to the dishwasher.

[0073] S28. If the dishwasher is in a level 2 fault alarm state, the alarm information is broadcast in the form of voice, and the dishwasher is controlled to stop filling with water.

[0074] If the dishwasher is in a level 2 fault alarm state, indicating that continued water filling will not cause wastewater to overflow from the dishwasher cavity within a certain period of time, the alarm information will be broadcast in the form of voice, and the dishwasher will be controlled to stop water filling, for example, by sounding an alarm, and the dishwasher water inlet will be closed to stop water filling into the dishwasher cavity.

[0075] S29. If the difference between the first temperature value and the second temperature value is greater than or equal to the set first temperature threshold, then continue to execute the water injection step.

[0076] If the difference between the first temperature value and the second temperature value is greater than or equal to the set first temperature threshold, and the surface dishwasher drains normally during the draining stage, then the water filling step of the water filling stage will continue.

[0077] The dishwasher fault detection method provided in this invention obtains a first temperature value within a preset first time period when the dishwasher transitions from the drainage stage to the water filling stage during the heating and washing process; obtains a second temperature value within a preset second time period after the dishwasher enters the water filling stage; if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold, a fault alarm is issued for the dishwasher. By using the temperature difference within a short period of time during the transition between the drainage stage and the water filling stage, the method determines whether the dishwasher has a drainage fault. While achieving accurate detection of drainage faults, the method also reduces the cost of the dishwasher by simply adding a temperature sensor.

[0078] Figure 3 This is a flowchart illustrating another dishwasher fault detection method provided in an embodiment of the present invention, as shown below. Figure 3 As shown, the method specifically includes:

[0079] S31. During the washing process of the dishwasher, obtain the third temperature value corresponding to the preset third time period when the dishwasher is in the draining stage.

[0080] S32. Obtain the second temperature value corresponding to the preset second time period after the dishwasher is in the water filling stage.

[0081] The dishwasher fault detection method provided in this embodiment of the invention is applied to the detection of the dishwasher in the working state of the heating washing mode. The dishwasher typically includes multiple injection stages, washing stages and drainage stages. The fault detection in this embodiment is based on the temperature difference between the drainage stage and the water injection stage.

[0082] To ensure the accuracy of temperature measurement, the temperature sensor can be placed at the bottom of the dishwasher cavity so that when water is poured into the dishwasher cavity and flows into the bottom of the cavity, the temperature sensor can quickly measure the temperature change.

[0083] Furthermore, the preset third time period can be the last time period corresponding to the drainage stage. For example, if the drainage time of the drainage stage is 50 seconds, the third time period can be the 46th to 50th seconds of the drainage stage.

[0084] The preset second time period can be: when the dishwasher is in the water filling stage, a time period is set after water filling begins, for example, 2 seconds after water filling begins.

[0085] Furthermore, the third temperature value and the second temperature value can be instantaneous temperature or average temperature. For example, the third time period is the last time period corresponding to the drainage stage, which is 1 second. The corresponding first temperature value can be the average temperature within 5 seconds or the instantaneous temperature corresponding to 5 seconds. The second time period is the set time period after the dishwasher starts filling water during the water filling stage, which is 2 seconds. The corresponding second temperature value can be the average temperature within 2 seconds or the instantaneous temperature corresponding to 2 seconds.

[0086] S33. Determine whether the difference between the third temperature value and the second temperature value is less than the set first temperature threshold.

[0087] S34. If the difference between the third temperature value and the second temperature value is less than the set first temperature threshold, then obtain the water level information inside the dishwasher.

[0088] If the difference between the third temperature value and the second temperature value is less than the set second temperature threshold, it is determined that the water in the dishwasher cavity has not been completely drained during the drainage stage, and the water level information in the dishwasher is obtained through the pressure sensor.

[0089] For example, the second temperature threshold could be 7°C.

[0090] S35. If the water level information exceeds the preset water level threshold, a first-level fault alarm of the dishwasher is triggered.

[0091] S36. If the water level information does not exceed the preset water level threshold, then the dishwasher's secondary fault alarm is triggered.

[0092] In this embodiment, a water level threshold is preset. This water level threshold can be set according to actual needs, such as 80% or 90%. However, this embodiment does not limit the specific value of the water level threshold.

[0093] Furthermore, if the water level exceeds a preset water level threshold, a first-level fault alarm is triggered on the dishwasher. The first-level fault alarm is the highest priority alarm (when the water level exceeds the water level threshold, continuing to add water will cause sewage to overflow from the dishwasher cavity). If the water level does not exceed the preset water level threshold, a second-level fault alarm is triggered on the dishwasher. The second-level fault alarm is a lower priority alarm (when the water level does not exceed the water level threshold, continuing to add water will not cause sewage to overflow from the dishwasher cavity for a certain period of time).

[0094] S37. If the dishwasher is in a first-level fault alarm state, control the dishwasher to stop operating.

[0095] If the dishwasher is under a Level 1 fault alarm, indicating that continued water filling will cause sewage to overflow from the dishwasher cavity, the dishwasher will be stopped, for example by cutting off the power supply to the dishwasher.

[0096] S38. If the dishwasher is in a level 2 fault alarm state, the alarm information is broadcast in the form of voice, and the dishwasher is controlled to stop filling with water.

[0097] If the dishwasher is in a level 2 fault alarm state, indicating that continued water filling will not cause wastewater to overflow from the dishwasher cavity within a certain period of time, the alarm information will be broadcast in the form of voice, and the dishwasher will be controlled to stop water filling, for example, by sounding an alarm, and the dishwasher water inlet will be closed to stop water filling into the dishwasher cavity.

[0098] S39. If the difference between the third temperature value and the second temperature value is greater than or equal to the set first temperature threshold, then continue to execute the water injection step.

[0099] If the difference between the first temperature value and the second temperature value is greater than or equal to the set first temperature threshold, and the surface dishwasher drains normally during the draining stage, then the water filling step of the water filling stage will continue.

[0100] The dishwasher fault detection method provided in this invention obtains a third temperature value corresponding to a preset third time period during the dishwasher's heating and washing process, and a second temperature value corresponding to a preset second time period after the dishwasher enters the water filling stage. If the difference between the third temperature value and the second temperature value is less than a set first temperature threshold, a fault alarm is issued for the dishwasher. By using the temperature difference within a short period of time during the transition between the drainage stage and the water filling stage, the method determines whether the dishwasher has a drainage fault. This method achieves accurate detection of drainage faults while reducing the cost of the dishwasher by only adding a temperature sensor.

[0101] Figure 4 This is a schematic diagram of the structure of a dishwasher fault detection device provided in an embodiment of the present invention, as shown below. Figure 4 As shown, the structure specifically includes:

[0102] The acquisition module 41 is used to acquire the first temperature value within a preset first time period when the dishwasher enters the water filling stage from the draining stage during the heating and washing process.

[0103] The acquisition module 41 is also used to acquire the second temperature value corresponding to a preset second time period after the dishwasher is in the water filling stage;

[0104] The alarm module 42 is used to issue a fault alarm to the dishwasher if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold.

[0105] In one possible implementation, the acquisition module 41 is further configured to acquire water level information inside the dishwasher;

[0106] The device further includes:

[0107] The trigger module 43 is used to trigger a first-level fault alarm of the dishwasher if the water level information exceeds a preset water level threshold, and to trigger a second-level fault alarm of the dishwasher if the water level information does not exceed the preset water level threshold.

[0108] In one possible implementation, the alarm module 42 is specifically used to control the dishwasher to stop operating if the dishwasher is in a first-level fault alarm state; or, if the dishwasher is in a second-level fault alarm state, to broadcast alarm information in the form of voice and control the dishwasher to stop filling with water.

[0109] In one possible implementation, the acquisition module 41 is further configured to acquire a third temperature value corresponding to a preset third time period during which the dishwasher is in the drainage stage;

[0110] The alarm module 42 is further configured to issue a fault alarm to the dishwasher if the difference between the third temperature value and the second temperature value is less than a set second temperature threshold.

[0111] In one possible implementation, the trigger module 43 is further configured to continue the water injection step if the difference between the first temperature value and the second temperature value is greater than or equal to a set first temperature threshold; or, if the difference between the third temperature value and the second temperature value is less than a set second temperature threshold, continue the water injection step.

[0112] The dishwasher fault detection device provided in this embodiment can be as follows: Figure 4 The dishwasher fault detection device shown can perform the following: Figure 1-3 All steps of the dishwasher fault detection method are implemented to achieve... Figure 1-3 For details on the technical effectiveness of the dishwasher fault detection method shown, please refer to [link / reference]. Figure 1-3 The relevant descriptions are presented concisely and will not be elaborated upon here.

[0113] Figure 5 This is a schematic diagram of the structure of a dishwasher provided in an embodiment of the present invention. Figure 5The dishwasher 500 shown includes at least one processor 501, a memory 502, at least one network interface 504, and other user interfaces 503. The various components in the dishwasher 500 are coupled together via a bus system 505. It is understood that the bus system 505 is used to implement communication between these components. In addition to a data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in… Figure 5 The general designated all buses as Bus System 505.

[0114] The user interface 503 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0115] It is understood that the memory 502 in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchlink Dynamic Random Access Memory (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 502 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0116] In some implementations, memory 502 stores elements, executable units or data structures, or subsets thereof, or extended sets thereof: operating system 5021 and application program 5022.

[0117] The operating system 5021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 5022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this embodiment can be included in the application program 5022.

[0118] In this embodiment of the invention, by calling the program or instructions stored in memory 502, specifically the program or instructions stored in application program 5022, processor 501 executes the method steps provided in each method embodiment, including, for example:

[0119] During the washing process of the dishwasher, a first temperature value is obtained within a preset first time period when the dishwasher enters the water filling stage from the drainage stage; a second temperature value is obtained within a preset second time period after the dishwasher enters the water filling stage; if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold, a fault alarm is issued for the dishwasher.

[0120] In one possible implementation, water level information inside the dishwasher is acquired; if the water level information exceeds a preset water level threshold, a first-level fault alarm of the dishwasher is triggered; if the water level information does not exceed the preset water level threshold, a second-level fault alarm of the dishwasher is triggered.

[0121] In one possible implementation, if the dishwasher is under a Level 1 fault alarm, the dishwasher is controlled to stop operating; or, if the dishwasher is under a Level 2 fault alarm, the alarm information is broadcast in the form of voice, and the dishwasher is controlled to stop filling with water.

[0122] In one possible implementation, a third temperature value is obtained corresponding to a preset third time period during which the dishwasher is in the drainage stage; if the difference between the third temperature value and the second temperature value is less than a set second temperature threshold, a fault alarm is issued for the dishwasher.

[0123] In one possible implementation, if the difference between the first temperature value and the second temperature value is greater than or equal to a set first temperature threshold, the water injection step continues; or, if the difference between the third temperature value and the second temperature value is less than a set second temperature threshold, the water injection step continues.

[0124] The methods disclosed in the above embodiments of the present invention can be applied to or implemented by processor 501. Processor 501 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 501 or by instructions in the form of software. The processor 501 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software units in the decoding processor. The software units may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 502. Processor 501 reads the information in memory 502 and, in conjunction with its hardware, completes the steps of the above method.

[0125] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or combinations thereof.

[0126] For software implementation, the techniques described herein can be implemented by units that perform the functions described herein. The software code can be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0127] The dishwasher provided in this embodiment can be as follows: Figure 5The dishwasher shown can perform the following functions: Figure 1-3 All steps of the dishwasher fault detection method are implemented to achieve... Figure 1-3 For details on the technical effectiveness of the dishwasher fault detection method shown, please refer to [link / reference]. Figure 1-3 The relevant descriptions are presented concisely and will not be elaborated upon here.

[0128] This invention also provides a storage medium (computer-readable storage medium). This storage medium stores one or more programs. The storage medium may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid-state drive; the memory may also include combinations of the above types of memory.

[0129] One or more programs in the storage medium can be executed by one or more processors to implement the dishwasher fault detection method described above, which is executed on the dishwasher fault detection device side.

[0130] The processor is used to execute a dishwasher fault detection program stored in the memory to implement the following steps of a dishwasher fault detection method executed on the dishwasher fault detection device side:

[0131] During the washing process of the dishwasher, a first temperature value is obtained within a preset first time period when the dishwasher enters the water filling stage from the drainage stage; a second temperature value is obtained within a preset second time period after the dishwasher enters the water filling stage; if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold, a fault alarm is issued for the dishwasher.

[0132] In one possible implementation, water level information inside the dishwasher is acquired; if the water level information exceeds a preset water level threshold, a first-level fault alarm of the dishwasher is triggered; if the water level information does not exceed the preset water level threshold, a second-level fault alarm of the dishwasher is triggered.

[0133] In one possible implementation, if the dishwasher is under a Level 1 fault alarm, the dishwasher is controlled to stop operating; or, if the dishwasher is under a Level 2 fault alarm, the alarm information is broadcast in the form of voice, and the dishwasher is controlled to stop filling with water.

[0134] In one possible implementation, a third temperature value is obtained corresponding to a preset third time period during which the dishwasher is in the drainage stage; if the difference between the third temperature value and the second temperature value is less than a set second temperature threshold, a fault alarm is issued for the dishwasher.

[0135] In one possible implementation, if the difference between the first temperature value and the second temperature value is greater than or equal to a set first temperature threshold, the water injection step continues; or, if the difference between the third temperature value and the second temperature value is less than a set second temperature threshold, the water injection step continues.

[0136] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0137] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0138] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for detecting dishwasher malfunctions, characterized in that, The temperature sensor is located at the bottom of the dishwasher cavity and includes: During the dishwasher's heating and washing process, the first temperature value corresponding to the preset first time period when the dishwasher enters the water filling stage from the drainage stage is obtained. Obtain the second temperature value corresponding to a preset second time period after the dishwasher is in the water filling stage; If the difference between the first temperature value and the second temperature value is less than a set first temperature threshold, the dishwasher will experience a drainage failure and trigger a fault alarm. The water level information inside the dishwasher will be obtained. If the water level information exceeds a preset water level threshold, a first-level fault alarm will be triggered. If the water level information does not exceed the preset water level threshold, a second-level fault alarm will be triggered.

2. The method according to claim 1, characterized in that, The fault alarm for the dishwasher includes: If the dishwasher is under a Level 1 fault alarm, then control the dishwasher to stop operating; or, If the dishwasher is in a level 2 fault alarm state, the alarm information will be broadcast in voice and the dishwasher will be controlled to stop filling with water.

3. The method according to claim 1, characterized in that, The method further includes: Obtain the third temperature value corresponding to the third time period when the dishwasher is in the drainage stage; If the difference between the third temperature value and the second temperature value is less than the set second temperature threshold, a fault alarm will be issued for the dishwasher.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: If the difference between the first temperature value and the second temperature value is greater than or equal to the set first temperature threshold, then the water injection step continues. or, If the difference between the third temperature value and the second temperature value is less than the set second temperature threshold, then the water injection step continues.

5. A dishwasher fault detection device, characterized in that, The temperature sensor is located at the bottom of the dishwasher cavity and includes: The acquisition module is used to acquire the first temperature value corresponding to the first time period when the dishwasher enters the water filling stage from the draining stage during the heating and washing process. The acquisition module is also used to acquire a second temperature value corresponding to a preset second time period after the dishwasher is in the water filling stage; The alarm module is used to issue a fault alarm to the dishwasher if the difference between the first temperature value and the second temperature value is less than a set first temperature threshold. The acquisition module is further configured to acquire water level information inside the dishwasher; the triggering module is configured to trigger a first-level fault alarm of the dishwasher if the water level information exceeds a preset water level threshold; and trigger a second-level fault alarm of the dishwasher if the water level information does not exceed the preset water level threshold.

6. The apparatus according to claim 5, characterized in that, The alarm module is specifically used to control the dishwasher to stop running if the dishwasher is under a level one fault alarm; or, if the dishwasher is under a level two fault alarm, to broadcast the alarm information in the form of voice and control the dishwasher to stop filling with water.

7. A dishwasher, characterized in that, include: A processor and a memory, the processor being configured to execute a dishwasher fault detection program stored in the memory to implement the dishwasher fault detection method according to any one of claims 1 to 4.

8. A storage medium, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the dishwasher fault detection method according to any one of claims 1 to 4.

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