Air door state detection method and device, refrigerator and computer readable storage medium

Abstract

The application provides a damper state detection method and device, a refrigerator and a computer readable storage medium. The method comprises the following steps: controlling a sound wave emitting device to emit sound waves to a damper of a refrigeration equipment; acquiring reflected sound wave data reflected from the damper and received by a sound wave receiving device; and determining a damper state of the damper according to the reflected sound wave data. The damper state detection method provided by the application emits sound waves to the damper of the refrigeration equipment and receives reflected sound wave data returned from the damper. Then, the reflected sound wave data is analyzed to determine the damper state of the damper, thereby avoiding the problem of inaccurate detection of the sensor when detecting the damper. In other words, the damper can be detected by the sonar method, and the actual state of the damper can be determined more accurately.

Description

Technical Field

[0001] This application relates to the field of electrical technology, specifically to a method, device, refrigerator, and computer-readable storage medium for detecting the status of a damper. Background Technology

[0002] After prolonged use, ice buildup inside the refrigerator's air damper can cause it to not close properly or become impossible to open, affecting cooling efficiency and potentially leading to spoilage of refrigerated items. Therefore, an effective method for accurately detecting refrigerator air damper icing problems is needed.

[0003] In existing technologies, touch sensors are typically installed at the refrigerator's air vent to detect whether the vent is closed. For example, when the vent is closed and the sensor is touched, it can be determined that the vent is closed. However, in reality, if the vent has been running for a long time and cannot be fully opened due to icing or other reasons, the sensor, not having touched the vent, can only determine that the vent is open, not its actual open / closed state. Since the vent is not fully open, the airflow is still relatively low, which still affects the cooling effect. Therefore, it is necessary to solve the problem of how to determine the vent's open / closed state in real time. Summary of the Invention

[0004] This application provides a method for detecting the status of a damper, which can detect the status of the damper of a refrigeration equipment by means of sound waves.

[0005] In a first aspect, this application provides a method for detecting the state of a damper, applied to a refrigeration device, wherein the refrigeration device is equipped with a sound wave emitting device and a sound wave receiving device, and the method includes:

[0006] Control the sound wave emitting device to emit sound waves toward the damper of the refrigeration equipment;

[0007] Acquire the reflected sound wave data received by the sound wave receiving device from the damper;

[0008] The damper status is determined based on the reflected sound wave data.

[0009] In some embodiments of this application, determining the damper state based on the reflected sound wave data includes:

[0010] Analyze the reflected sound wave data to determine the sound wave reflection characteristics;

[0011] The damper status is determined based on the sound wave reflection characteristics.

[0012] In some embodiments of this application, determining the damper state based on the sound wave reflection characteristics includes:

[0013] Determine the similarity between the sound wave reflection characteristics and the preset reference sound wave characteristics;

[0014] The damper status is determined based on the similarity.

[0015] In some embodiments of this application, determining the damper state based on the similarity includes:

[0016] If the similarity is within a preset similarity threshold range, the damper status is determined.

[0017] If the similarity is outside the similarity threshold range, the damper status is determined to be abnormal.

[0018] In some embodiments of this application, before determining the damper state based on the reflected sound wave data, the method further includes:

[0019] Acquire training acoustic data of the damper in different opening and closing states;

[0020] A sound wave detection model is trained based on the trained sound wave data.

[0021] In some embodiments of this application, after determining the damper state based on the reflected sound wave data, the method further includes:

[0022] The model parameters of the acoustic wave detection model are adjusted according to the preset parameter adjustment cycle and the reflected sound wave data of the damper.

[0023] In some embodiments of this application, after determining the damper state based on the reflected sound wave data, the method further includes:

[0024] If the damper is determined to be in an abnormal state, the refrigeration equipment is controlled to issue an alarm.

[0025] If it is determined that the damper is in a non-abnormal state, the damper status is continuously monitored.

[0026] Secondly, this application also provides a damper status detection device, applied to a refrigeration equipment, wherein the refrigeration equipment is equipped with a sound wave emitting device and a sound wave receiving device, and the method includes:

[0027] The control module is used to control the sound wave emitting device to emit sound waves to the damper of the refrigeration equipment;

[0028] The acquisition module is used to acquire reflected sound wave data received by the sound wave receiving device from the damper;

[0029] The determining module is used to determine the damper status of the damper based on the reflected sound wave data.

[0030] In some embodiments of this application, the determining module is specifically used for:

[0031] Analyze the reflected sound wave data to determine the sound wave reflection characteristics;

[0032] The damper status is determined based on the sound wave reflection characteristics.

[0033] In some embodiments of this application, the determining module is further configured to:

[0034] Determine the similarity between the sound wave reflection characteristics and the preset reference sound wave characteristics;

[0035] The damper status is determined based on the similarity.

[0036] In some embodiments of this application, the determining module is further configured to:

[0037] If the similarity is within a preset similarity threshold range, the damper status is determined.

[0038] If the similarity is outside the similarity threshold range, the damper status is determined to be abnormal.

[0039] In some embodiments of this application, the apparatus further includes a model building module, which is specifically used for:

[0040] Acquire training acoustic data of the damper in different opening and closing states;

[0041] A sound wave detection model is trained based on the trained sound wave data.

[0042] In some embodiments of this application, the device further includes a parameter adjustment module, which is specifically used for:

[0043] The model parameters of the acoustic wave detection model are adjusted according to the preset parameter adjustment cycle and the reflected sound wave data of the damper.

[0044] In some embodiments of this application, the control module 301 is further configured to:

[0045] If the damper is determined to be in an abnormal state, the refrigeration equipment is controlled to issue an alarm.

[0046] If it is determined that the damper is in a non-abnormal state, the damper status is continuously monitored.

[0047] Thirdly, this application also provides a refrigerator, the refrigerator including a processor, a memory and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the steps in any of the damper status detection methods described above.

[0048] Fourthly, this application also provides a computer-readable storage medium storing a computer program that is executed by a processor to implement the steps in any of the damper status detection methods described above.

[0049] The damper status detection method provided in this application transmits sound waves to the damper of a refrigeration device and receives the reflected sound wave data returned from the damper. Then, the reflected sound wave data is analyzed to determine the damper status, avoiding the problem of inaccurate detection by sensors. In other words, detecting the damper using sonar can more accurately determine its actual status. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a schematic diagram of a scenario for the damper status detection system provided in the embodiments of this application;

[0052] Figure 2 This is a schematic flowchart of one embodiment of the damper status detection method in this application;

[0053] Figure 3 This is a schematic diagram of a functional module of the damper status detection device in an embodiment of this application;

[0054] Figure 4 This is a schematic diagram of the refrigerator structure in an embodiment of this application. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0057] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. Furthermore, it is understood that in the specific embodiments of this application, user information, user data, and other related data are involved. When the above embodiments of this application are applied to specific products or technologies, user permission or consent is required, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions.

[0058] To enable any person skilled in the art to implement and use this application, the following description is provided. In this description, details are set forth for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0059] This application provides a method, apparatus, refrigerator, and computer-readable storage medium for detecting the status of a damper, which are described in detail below.

[0060] Please see Figure 1 , Figure 1 This is a schematic diagram of a damper status detection system provided in an embodiment of this application. The damper status detection system may include a refrigeration device 100 and a storage device 200, and the storage device 200 may transmit data to the refrigeration device 100. Figure 1 The refrigeration device 100 in the storage device 200 can acquire the acoustic wave data stored in the storage device 200 to execute the damper status detection method in this application.

[0061] In this embodiment of the application, the refrigeration equipment 100 includes, but is not limited to, any refrigeration equipment such as refrigerators and freezers, whose compressors have dampers and which deliver air through the dampers.

[0062] In this embodiment of the application, the storage device 200 may include, but is not limited to, mobile storage devices, cloud storage devices, etc.

[0063] In the embodiments of this application, the cooling device 100 and the storage device 200 can communicate through any communication method, including but not limited to mobile communication based on the 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), and Worldwide Interoperability for Microwave Access (WiMAX), or computer network communication based on the TCP / IP Protocol Suite (TCP / IP) and User Datagram Protocol (UDP).

[0064] It should be noted that, Figure 1 The schematic diagram of the damper status detection system shown is merely an example. The damper status detection system and scenario described in this application are for the purpose of more clearly illustrating the technical solutions of this application and do not constitute a limitation on the technical solutions provided in this application. As those skilled in the art will know, with the evolution of damper status detection systems and the emergence of new business scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0065] like Figure 2 As shown, Figure 2 This is a flowchart illustrating one embodiment of the damper status detection method in this application. The damper status detection method may include the following steps 201-203:

[0066] 201. Control the sound wave emitting device to emit sound waves to the damper of the refrigeration equipment.

[0067] In this embodiment, the acoustic wave emitting device can be any type of radar. This radar can be installed inside the refrigeration equipment and connected to the control unit of the refrigeration equipment, such as a processor, so that the processor can control the acoustic wave emitting device to execute corresponding action commands. It should be noted that the specific installation location of the acoustic wave emitting device can be set according to actual conditions, and this embodiment does not limit it.

[0068] Since the damper is located in a fixed position inside the refrigeration equipment, when installing the radar, the direction of the radar's sound waves can be aligned with the fixed position of the damper. This ensures that the radar's sound waves can cover the damper, and when the processor sends control signals to control the radar, the sound waves emitted by the radar can properly cover the damper of the refrigeration equipment.

[0069] 202. Obtain the reflected sound wave data from the damper received by the sound wave receiving device.

[0070] In this embodiment, the sound wave receiving device can be installed in the refrigeration equipment at any location capable of receiving reflected sound wave data reflected by the damper, enabling the sound wave receiving device to successfully receive the reflected sound wave data. For example, a sound wave receiving antenna can be installed to receive reflected sound waves from radar. It should be noted that the specific installation location of the sound wave receiving device can be set according to the actual situation, and this embodiment does not limit it.

[0071] 203. Determine the damper status based on the reflected sound wave data.

[0072] After acquiring the reflected sound wave data from the damper via the sound wave receiving device, the characteristics of the reflected sound waves after contact with various points on the damper, such as the reflection time characteristics, can be determined by analyzing the reflected sound wave data. This allows the processor to determine the distance between each point on the damper and the sound wave receiving device, and thus create a sound wave image of the damper based on the distance data. Once the current sound wave image of the damper is obtained, the current opening angle of the damper can be determined. Then, the current opening angle is compared with the opening angle to be achieved as instructed. If the actual opening angle of the damper does not match the angle to be achieved as instructed, the airflow will deviate, resulting in the cooling effect not meeting expectations. In this case, the damper is considered to be in an abnormal opening state. If the actual opening angle matches the angle to be achieved as instructed, the damper is considered to be in a normal opening state.

[0073] The damper status detection method provided in this application transmits sound waves to the damper of a refrigeration device and receives the reflected sound wave data returned from the damper. Then, the reflected sound wave data is analyzed to determine the damper status, avoiding the problem of inaccurate detection by sensors. In other words, detecting the damper using sonar can more accurately determine its actual status.

[0074] To better implement the embodiments of this application, in one embodiment, determining the damper state based on reflected sound wave data includes:

[0075] Analyze the reflected sound wave data to determine the sound wave reflection characteristics; based on the sound wave reflection characteristics, determine the damper status.

[0076] The above embodiments provide a scheme for determining the opening and closing state of a damper by analyzing its acoustic image. This application also provides other schemes for determining the opening and closing state of a damper.

[0077] Specifically, in this embodiment, the opening and closing angle of the damper can be determined through waveform characteristics. Once the opening and closing angle of the damper is determined, the current opening and closing state of the damper can be determined based on the opening and closing command issued by the processor. If the actual opening and closing angle of the damper is inconsistent with the opening and closing angle to be achieved in the command, it will cause a deviation in the airflow from the damper, resulting in the cooling effect not reaching the expected level. In this case, the damper state can be determined to be an abnormal opening and closing state. If the actual opening and closing angle is consistent with the opening and closing angle to be achieved in the command, it can be determined that the damper is in a normal opening and closing state.

[0078] It should be noted that, in this embodiment of the application, the storage device of the refrigeration equipment can pre-store the waveform characteristics of the damper at various opening angles. After obtaining the actual reflected sound wave data, the waveform characteristics of the actual reflected sound wave data can be compared with the waveform characteristics stored in the storage device, and the current opening angle of the damper can be determined by the matched waveform characteristics. Simultaneously, the waveform characteristics can be extracted using a corresponding model; any feature extraction model can be referenced, and this embodiment of the application is not limited to any specific model.

[0079] To better implement the embodiments of this application, in one embodiment, determining the damper state of the damper based on sound wave reflection characteristics includes:

[0080] Determine the similarity between the sound wave reflection characteristics and the preset reference sound wave characteristics; based on the similarity, determine the damper status.

[0081] The above embodiments provide a scheme for feature comparison to determine the opening and closing state of a damper. However, in reality, due to external interference or errors, features cannot be 100% identical during comparison. Therefore, the similarity between features can be calculated. For example, cosine similarity. After obtaining the sound features of the current damper, the similarity between the current sound feature and each stored sound feature is calculated. This allows the determination of the stored sound feature with the highest similarity to the current sound feature, thereby determining the opening and closing angle of the current damper and thus the damper's state. It should be noted that in this embodiment, the similarity can also be calculated in other ways, such as calculating the Euclidean distance between two sound wave features. The smaller the Euclidean distance, the higher the similarity between the two sound wave features. Specifically, the similarity calculation method used can be set according to the actual situation, and this embodiment does not limit it.

[0082] Once the current opening angle of the damper is determined, if the actual opening angle differs from the angle specified in the command, the airflow will deviate, resulting in the cooling effect failing to meet expectations. In this case, the damper is considered to be in an abnormal opening / closing state. Conversely, if the actual opening angle matches the angle specified in the command, the damper is considered to be in a normal opening / closing state.

[0083] To better implement the embodiments of this application, in one embodiment, the damper state of the damper is determined based on similarity, including:

[0084] If the similarity is within the preset similarity threshold range, the damper status is determined; if the similarity is outside the similarity threshold range, the damper status is determined to be abnormal.

[0085] The above embodiments provide a scheme for determining the specific opening and closing angle of a damper based on the stored acoustic wave feature with the highest similarity, thereby determining the damper's opening and closing state. However, if the damper's angle is particularly abnormal, although the acoustic wave feature corresponding to the current opening and closing angle of the damper may have a stored acoustic wave feature with the highest similarity, it may not necessarily represent the actual opening and closing angle of the damper. For example, the current acoustic wave feature A of the damper has the highest similarity with the stored acoustic wave feature B. However, their similarity is only 50%, so using the opening and closing angle corresponding to acoustic wave feature B as the current opening and closing angle of the damper is obviously inaccurate. Therefore, while determining the highest similarity, it is also necessary to determine whether the specific value of the highest similarity is reasonable. For example, only when the highest similarity is above 90% can the corresponding damper opening and closing angle be regarded as the current actual opening and closing angle of the damper. Therefore, when the highest similarity is above 90%, that is, if the similarity is within the preset similarity threshold range, the damper's state can be determined to be normal. For example, if the actual opening angle of the damper is inconsistent with the opening angle required by the command, it will cause a deviation in the airflow from the damper, resulting in the cooling effect not achieving the expected effect. In this case, the damper status can be determined to be an abnormal opening / closing state. If the actual opening / closing angle is consistent with the opening / closing angle required by the command, then the damper can be determined to be in a normal opening / closing state.

[0086] However, it should be noted that if the highest similarity is below 90%, that is, if the similarity is outside the preset similarity threshold range, the current damper status can be directly determined as an abnormal state, without needing to determine whether the actual opening and closing angle of the damper matches the opening and closing angle to be achieved by the command.

[0087] To better implement the embodiments of this application, in one embodiment of this application, before determining the damper state based on the reflected sound wave data, the method further includes:

[0088] Acquire training acoustic wave data of the damper in different opening and closing states; train the acoustic wave detection model based on the training acoustic wave data.

[0089] The above embodiments provide a scheme for determining the opening and closing angle of a damper by comparing the similarity between features, and this process can be accomplished by a corresponding model. Specifically, a large amount of training acoustic wave data can be collected and stored in a corresponding storage device, enabling the model to retrieve the training acoustic wave data for training from the storage device. These training acoustic wave data can also be manually labeled with corresponding angle tags, with one training acoustic wave data point corresponding to one label for the opening and closing angle of the damper.

[0090] Once the training sound wave data is obtained, it can be input into the sound wave detection system to perform supervised training on the sound wave detection model. This allows the model to directly determine the opening and closing angle of the sound wave after obtaining the actual reflected sound wave data during the subsequent application phase, without having to compare it with the stored sound wave data.

[0091] During the model training phase, the model can predict labels for each training sound wave data point. If the predicted labels for each training sound wave data point differ from the actual labels, the parameters within the sound wave detection model can be gradually adjusted to minimize the gap between the predicted results and the true labels, until all predicted labels match the true labels. Simultaneously, a loss function needs to be defined to measure the difference between the model's predicted labels and the true labels. The choice of loss function depends on the specific problem and the model, and the goal is to minimize this loss function during training. When the loss value of the loss function reaches a preset requirement, the sound wave detection model completes training.

[0092] To better implement the embodiments of this application, in one embodiment, after determining the damper state based on reflected sound wave data, the method further includes:

[0093] The model parameters of the acoustic wave detection model are adjusted according to the preset parameter adjustment cycle and the reflected sound wave data of the damper.

[0094] In order to keep the model's detection performance at a high level, whenever actual reflected sound wave data is acquired, the new reflected sound wave data can be used to retrain the sound wave detection model. Specifically, the model's parameters are adjusted so that the model can detect sound waves better.

[0095] To avoid retraining the sound wave detection model for each acquired reflected sound wave data point, a preset time period, such as one month or three months, can be used. For example, the cooling device can store the reflected sound wave data from each actual detection. In this case, if the time period is one month, every month or thirty days, the cooling device can send the stored reflected sound wave data from that period back to the sound wave detection model to retrain it. During training, the model parameters can be adjusted appropriately. Specifically, the training method is the same as in the above embodiment and will not be repeated here.

[0096] To better implement the embodiments of this application, in one embodiment, after determining the damper state based on reflected sound wave data, the method further includes:

[0097] If the damper is determined to be in an abnormal state, the refrigeration equipment will issue an alarm; if the damper is determined to be in a normal state, the damper status will be continuously monitored.

[0098] When an abnormal state is detected in the damper, the user needs to be notified immediately to prevent the equipment from operating in an abnormal state. Therefore, a corresponding buzzer can be installed on the refrigeration equipment. When it is determined that the damper is in an abnormal opening or closing state according to any of the above embodiments, the buzzer can be controlled to sound an alarm to prompt the user to take manual action, such as reporting a repair.

[0099] When the damper is determined to be in a normal state, the refrigeration equipment is considered to be operating normally and no alarm is required. At this point, continuous monitoring of the damper to check for any abnormalities is sufficient. The specific monitoring method is similar to the scheme in any of the above embodiments, and will not be elaborated here.

[0100] To better implement the damper status detection method in this application embodiment, this application embodiment also provides a damper status detection device, applied to a refrigeration equipment. The refrigeration equipment is equipped with a sound wave emitting device and a sound wave receiving device, such as... Figure 3 As shown, the device 300 includes:

[0101] Control module 301 is used to control the sound wave emitting device to emit sound waves to the damper of the refrigeration equipment;

[0102] The acquisition module 302 is used to acquire the reflected sound wave data received by the sound wave receiving device from the damper;

[0103] The determination module 303 is used to determine the damper status of the damper based on the reflected sound wave data.

[0104] The damper status detection device provided in this application transmits sound waves to the damper of the refrigeration equipment via a control module 301 and receives the reflected sound wave data returned from the damper via an acquisition module 302. Then, a determination module 303 analyzes the reflected sound wave data to determine the damper status, thus avoiding the problem of inaccurate detection by sensors. In other words, detecting the damper using sonar can more accurately determine its actual status.

[0105] In some embodiments of this application, the determining module 303 is specifically used for:

[0106] Analyze the reflected sound wave data to determine the sound wave reflection characteristics;

[0107] The damper status is determined based on the characteristics of sound wave reflection.

[0108] In some embodiments of this application, the determining module 303 is further configured to:

[0109] Determine the similarity between the sound wave reflection characteristics and the preset reference sound wave characteristics;

[0110] The damper status is determined based on similarity.

[0111] In some embodiments of this application, the determining module 303 is further configured to:

[0112] If the similarity is within the preset similarity threshold range, determine the damper status;

[0113] If the similarity is outside the similarity threshold range, the damper's state is determined to be abnormal.

[0114] In some embodiments of this application, the apparatus further includes a model building module, which is specifically used for:

[0115] Acquire training acoustic data of the damper in different opening and closing states;

[0116] Train a sound wave detection model based on the training sound wave data.

[0117] In some embodiments of this application, the apparatus further includes a parameter adjustment module, which is specifically used for:

[0118] The model parameters of the acoustic wave detection model are adjusted according to the preset parameter adjustment cycle and the reflected sound wave data of the damper.

[0119] In some embodiments of this application, the control module 301 is further configured to:

[0120] If the damper is determined to be in an abnormal state, the refrigeration equipment will be controlled to issue an alarm.

[0121] If the damper status is determined to be non-abnormal, continue to monitor the damper status.

[0122] This application also provides a refrigerator, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor executes the computer program to implement the steps of the damper state detection method according to any one of the embodiments of this application. This refrigerator integrates any one of the damper state detection methods provided in the embodiments of this application, such as... Figure 4 As shown, it illustrates a structural schematic diagram of the refrigerator involved in an embodiment of this application. Specifically:

[0123] The refrigerator may include components such as a processor 401 with one or more processing cores, a memory 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 4 The refrigerator structure shown does not constitute a limitation on the refrigerator and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein:

[0124] The processor 401 is the control center of the refrigerator. It connects to various parts of the refrigerator via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 402, and by calling data stored in the memory 402, it performs various functions and processes data, thereby providing overall monitoring of the refrigerator. Optionally, the processor 401 may include one or more processing cores. The processor 401 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. Preferably, the processor 401 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and application programs, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 401.

[0125] The memory 402 can be used to store software programs and modules. The processor 401 executes various functional applications and data processing by running the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created based on the use of the refrigerator, etc. In addition, the memory 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 with access to the memory 402.

[0126] The refrigerator also includes a power supply 403 that supplies power to the various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 403 may also include one or more DC or AC power supplies, a recharging system, a power fault detection circuit, a power converter or inverter, a power status indicator, or any other components.

[0127] The refrigerator may also include an input unit 404, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0128] Although not shown, the refrigerator may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 401 in the refrigerator loads the executable files corresponding to the processes of one or more application programs into the memory 402 according to the following instructions, and the processor 401 runs the application programs stored in the memory 402 to realize various functions, such as:

[0129] Control the sound wave emitting device to emit sound waves towards the damper of the refrigeration equipment;

[0130] Acquire the reflected sound wave data from the damper received by the sound wave receiving device;

[0131] The damper status is determined based on the reflected sound wave data.

[0132] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0133] Therefore, embodiments of this application provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in any of the damper status detection methods provided in embodiments of this application. For example, the computer program loaded by the processor can execute the following steps:

[0134] Control the sound wave emitting device to emit sound waves towards the damper of the refrigeration equipment;

[0135] Acquire the reflected sound wave data from the damper received by the sound wave receiving device;

[0136] The damper status is determined based on the reflected sound wave data.

[0137] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0138] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0139] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0140] The above provides a detailed description of a damper status detection method and apparatus provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for detecting the status of a damper, characterized in that, Applied to refrigeration equipment, the refrigeration equipment being equipped with a sound wave emitting device and a sound wave receiving device, the method includes: Control the sound wave emitting device to emit sound waves toward the damper of the refrigeration equipment; Acquire the reflected sound wave data received by the sound wave receiving device from the damper; The damper status is determined based on the reflected sound wave data. Determining the damper state based on the reflected sound wave data includes: Analyze the reflected sound wave data to determine the sound wave reflection characteristics; the reflected sound wave data includes waveform characteristics; The damper status of the damper is determined based on the sound wave reflection characteristics. Determining the damper state based on the sound wave reflection characteristics includes: Determine the similarity between the sound wave reflection characteristics and the preset reference sound wave characteristics; The damper status is determined based on the similarity.

2. The damper status detection method according to claim 1, characterized in that, Determining the damper state based on the similarity includes: If the similarity is within a preset similarity threshold range, the damper status is determined. If the similarity is outside the similarity threshold range, the damper status is determined to be abnormal.

3. The damper status detection method according to claim 1, characterized in that, Before determining the damper state based on the reflected sound wave data, the method further includes: Acquire training acoustic data of the damper in different opening and closing states; A sound wave detection model is trained based on the trained sound wave data.

4. The damper status detection method according to claim 3, characterized in that, After determining the damper state based on the reflected sound wave data, the method further includes: The model parameters of the acoustic wave detection model are adjusted according to the preset parameter adjustment cycle and the reflected sound wave data of the damper.

5. The damper status detection method according to claim 1, characterized in that, After determining the damper state based on the reflected sound wave data, the method further includes: If the damper is determined to be in an abnormal state, the refrigeration equipment is controlled to issue an alarm. If it is determined that the damper is in a non-abnormal state, the damper status is continuously monitored.

6. A damper status detection device, characterized in that, Applied to refrigeration equipment, the refrigeration equipment is equipped with a sound wave emitting device and a sound wave receiving device, and the damper status detection device includes: The control module is used to control the sound wave emitting device to emit sound waves to the damper of the refrigeration equipment; The acquisition module is used to acquire reflected sound wave data received by the sound wave receiving device from the damper; The determining module is used to determine the damper status of the damper based on the reflected sound wave data; Determining the damper state based on the reflected sound wave data includes: Analyze the reflected sound wave data to determine the sound wave reflection characteristics; the reflected sound wave data includes waveform characteristics; The damper status of the damper is determined based on the sound wave reflection characteristics. Determining the damper state based on the sound wave reflection characteristics includes: Determine the similarity between the sound wave reflection characteristics and the preset reference sound wave characteristics; The damper status is determined based on the similarity.

7. A refrigerator, characterized in that, The refrigerator includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps in the damper status detection method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which is executed by a processor to implement the steps of the damper status detection method according to any one of claims 1 to 5.

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