Fan monitoring method and device, refrigerator and computer readable storage medium

Abstract

The invention provides a draught fan monitoring method and device, a refrigerator and a computer readable storage medium, the draught fan monitoring method and device are applied to refrigeration equipment, the refrigeration equipment comprises ultrasonic sensors and a draught fan, the ultrasonic sensors are arranged on the peripheral side of the draught fan, and the draught fan monitoring method comprises the steps that target vibration signals collected by the ultrasonic sensors are obtained; and determining the operation state of the fan according to the target vibration signal. According to the draught fan monitoring method provided by the invention, the sound vibration signals generated when the draught fan works can be collected through the ultrasonic sensors arranged on the peripheral side of the draught fan, and whether the draught fan is abnormal or not is determined by analyzing the sound vibration signals of the draught fan and detecting the running state of the draught fan, so that the real-time performance and accuracy of draught fan monitoring are ensured.

Description

Technical Field

[0001] The present application relates to the field of electrical appliance technology, and in particular to a fan monitoring method, device, refrigerator and computer-readable storage medium. Background Art

[0002] The fan is a very important part of refrigerator refrigeration technology. Its main function is to evenly distribute cold air to every corner inside the refrigerator. The existing fan monitoring method cannot accurately reflect the operating status of the fan in real time. Therefore, a more real-time, accurate and reliable detection method is needed. Summary of the invention

[0003] The present application provides a fan monitoring method, which can effectively monitor the operating status of the fan.

[0004] In a first aspect, the present application provides a fan monitoring method, which is applied to a refrigeration device, wherein the refrigeration device includes an ultrasonic sensor and a fan, wherein the ultrasonic sensor is disposed on a peripheral side of the fan, and the method includes:

[0005] Acquire a target vibration signal collected by the ultrasonic sensor;

[0006] The operating state of the fan is determined according to the target vibration signal.

[0007] In some embodiments of the present application, obtaining the target vibration signal collected by the ultrasonic sensor includes:

[0008] Determine the sampling frequency and sampling time;

[0009] According to the sampling frequency and the sampling time, the ultrasonic sensor is controlled to collect the target vibration signal.

[0010] In some embodiments of the present application, determining the operating state of the wind turbine according to the target vibration signal includes:

[0011] Analyzing the target vibration signal to determine the air flow rate and air density information around the fan;

[0012] The operating state of the fan is determined according to the air flow rate and the air density information.

[0013] In some embodiments of the present application, determining the operating state of the fan according to the air flow rate and the air density information includes:

[0014] If the air flow rate is less than a target rate threshold or the air density information is greater than a target density threshold, determining that the operating state of the fan is an icing state;

[0015] If the air flow rate is greater than or equal to the target rate threshold or the air density information is less than or equal to the target density threshold, it is determined that the operating state of the fan is an un-iced state.

[0016] In some embodiments of the present application, after determining that the operating state of the fan is an icing state, the method further includes:

[0017] The target alarm device is controlled to output a first alarm message; the first alarm message is used to indicate that the operating state of the fan is an icing state.

[0018] In some embodiments of the present application, after determining that the operating state of the fan is an icing state, the method further includes:

[0019] The fan is controlled to stop.

[0020] In some embodiments of the present application, before acquiring the target vibration signal collected by the ultrasonic sensor, the method further includes:

[0021] Controlling the fan to start, and collecting an initial vibration signal through the ultrasonic sensor;

[0022] Based on the initial vibration signal, determining whether the fan is started normally;

[0023] If the fan fails to start normally, the target alarm device is controlled to output a second alarm message; the second alarm message is used to prompt the user to detect the status of the fan.

[0024] In a second aspect, the present application further provides a fan monitoring device, which is applied to a refrigeration device, wherein the refrigeration device comprises an ultrasonic sensor and a fan, wherein the ultrasonic sensor is arranged on the peripheral side of the fan, and the device comprises:

[0025] An acquisition module, used to acquire a target vibration signal collected by the ultrasonic sensor;

[0026] A processing module is used to determine the operating state of the fan according to the target vibration signal.

[0027] In a third aspect, the present application also provides a refrigerator, comprising 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 any one of the fan monitoring methods described.

[0028] In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the steps in any one of the wind turbine monitoring methods.

[0029] The fan monitoring method provided in the present application can collect the sound and vibration signals emitted by the fan when it is working through ultrasonic sensors arranged on the side of the fan, and detect the operating status of the fan by analyzing the sound and vibration signals of the fan, so as to determine whether there is any abnormality in the fan, thereby ensuring the real-time and accuracy of fan monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 is a schematic diagram of a scenario of a wind turbine monitoring system provided in an embodiment of the present application;

[0032] Figure 2 This is a schematic diagram of a flow chart of a method for monitoring a fan in an embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of a functional module of a wind turbine monitoring device in an embodiment of the present application;

[0034] Figure 4 It is a schematic diagram of the structure of the refrigerator in the embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0036] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of the present application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0037] In this application, the word "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. At the same time, it is to be understood that in the specific implementation of this application, when 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 relevant data shall comply with relevant laws, regulations and standards of relevant countries and regions.

[0038] In order to enable any person skilled in the art to implement and use the present application, the following description is provided. In the following description, details are listed for the purpose of explanation. It should be understood that those of ordinary skill in the art will recognize that the present application can be implemented without using these specific details. In other examples, known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the present application obscure. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0039] The present application provides a wind turbine monitoring method, device, equipment and storage medium, which are described in detail below.

[0040] See also Figure 1 , Figure 1 1 is a schematic diagram of a fan monitoring system provided in an embodiment of the present application, and the fan monitoring system may include a refrigerator 100. Figure 1 The refrigerator 100 in the embodiment can obtain the relevant control logic stored in the refrigerator 100 to execute the fan monitoring method in the present application.

[0041] In the embodiment of the present application, the refrigerator 100 includes but is not limited to a double-door refrigerator, a single-door refrigerator, a freezer, etc.

[0042] It should be noted that Figure 1 The scenario diagram of the wind turbine monitoring system shown is only an example. The wind turbine monitoring system and scenario described in the embodiment of the present application are intended to more clearly illustrate the technical solution of the embodiment of the present application, and do not constitute a limitation on the technical solution provided in the embodiment of the present application. Ordinary technicians in this field can know that with the evolution of the wind turbine monitoring system and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0043] like Figure 2 As shown, Figure 2The following is a flow chart of an embodiment of a fan monitoring method in an embodiment of the present application. The method is applied to a refrigeration device. The refrigeration device includes an ultrasonic sensor and a fan. The ultrasonic sensor is arranged on the peripheral side of the fan. The method specifically includes the following steps 201 to 202:

[0044] 201. Obtain a target vibration signal collected by an ultrasonic sensor.

[0045] In the embodiment of the present application, when the fan is in operation, a sound vibration signal is generated. Therefore, the ultrasonic sensor installed around the fan can collect the sound vibration signal of the fan, especially some sound vibration signals that are inaudible to human ears, such as ultrasound. When the fan is started, the ultrasonic sensor can be activated to collect the sound vibration signal generated by the fan when it is working, that is, the target vibration signal in the embodiment of the present application.

[0046] In addition, it should be noted that the fan structure of different models of refrigeration equipment is not fixed, so the installation position of the ultrasonic sensor needs to be installed according to the layout of different fans, which is not limited by the specific embodiments of the present application. In addition, the distance between the ultrasonic sensor and the fan can be about 5 cm, which can ensure that the collected vibration signal is most in line with the ideal state.

[0047] 202. Determine the operating status of the fan according to the target vibration signal.

[0048] When the fan is abnormal, the sound vibration generated when it rotates is different from the sound vibration when it is normal. Therefore, the acquired target vibration signal can be compared with the pre-stored abnormal vibration signal. For example, the system can store abnormal vibration signals corresponding to when the fan is frozen, abnormal vibration signals corresponding to loose fan blades, abnormal vibration signals corresponding to the large friction of the rotor due to lack of lubricating oil when the fan rotates, etc. The specific embodiments of the present application are no longer listed. At this time, the currently acquired target vibration signal is compared with the vibration signals of each abnormal type to determine the working state of the fan. When the target vibration signal does not match each abnormal vibration signal, it can be determined that the fan is in a normal working state. Otherwise, when the target vibration signal matches a specific type of abnormal vibration signal, it can be determined that a specific abnormality has occurred in the fan. For example, if the current target vibration signal of the fan matches the abnormal vibration signal corresponding to the loose fan blades, it is determined that the fan blades are loose, etc.

[0049] The fan monitoring method provided in the present application can collect the sound and vibration signals emitted by the fan when it is working through ultrasonic sensors arranged on the side of the fan, and detect the operating status of the fan by analyzing the sound and vibration signals of the fan, so as to determine whether there is any abnormality in the fan, thereby ensuring the real-time and accuracy of fan monitoring.

[0050] In order to better implement the embodiments of the present application, in one embodiment of the present application, obtaining a target vibration signal collected by an ultrasonic sensor includes:

[0051] Determine the sampling frequency and sampling time; according to the sampling frequency and sampling time, control the ultrasonic sensor to collect the target vibration signal.

[0052] The above embodiment provides a solution for determining the working state of the fan according to the target vibration signal. However, in order to facilitate subsequent processing, analysis, storage and sharing, the embodiment of the present application also provides a sampling solution. When sampling the vibration signal, the vibration signal can be sampled by a set sampling method to convert the vibration signal into a discrete digital signal.

[0053] Specifically, in the embodiment of the present application, the sampling frequency can be 1000 Hz, and the sampling time can be 10 seconds. Each time the ultrasonic wave is activated, the vibration signal of the fan can be sampled according to the sampling frequency and sampling time. After each sampling is completed, a target time period can be interval to sample the working fan again, for example, 2 minutes, 5 minutes, etc. The embodiment of the present application does not limit the length of the target time period. This can also save a certain amount of storage space and avoid the system from storing too many target vibration signals.

[0054] In addition, in the embodiment of the present application, controlling the ultrasonic sensor to collect the target vibration signal according to the sampling frequency and the sampling time may also include controlling the ultrasonic sensor to collect the target vibration signal according to the sampling frequency, the sampling time and the target operating frequency of the ultrasonic sensor. The target operating frequency may be an operating frequency set by the user, such as 40KHz, etc., and the target operating frequency is not limited in the embodiment of the present application.

[0055] In order to better implement the embodiment of the present application, in one embodiment of the present application, determining the operating state of the fan according to the target vibration signal includes:

[0056] The target vibration signal is analyzed to determine the air flow rate and air density information around the fan; based on the air flow rate and air density information, the operating status of the fan is determined.

[0057] In the above embodiment, a scheme is provided for comparing the target vibration signal with each stored abnormal vibration signal to determine its working state. The advantage of this scheme is that it can accurately determine the specific abnormal problem. However, storing various abnormal vibration signals requires a certain amount of storage space. Therefore, a scheme is also provided in the embodiment of the present application.

[0058] Specifically, since the essence of the target vibration signal is the air vibration frequency collected by the ultrasonic sensor when the air flows through the ultrasonic sensor. Therefore, the air flow rate and air density information can be determined based on the target vibration signal, that is, the vibration frequency. At this time, if the fan is in a normal state, for example, when the fan is working at 5 gears, it theoretically corresponds to a normal wind speed. When the air flow rate analyzed according to the target vibration signal is less than the wind speed at 5 gears, it can be proved that the fan speed cannot reach 5 gears, that is, the control of the fan may be abnormal.

[0059] At the same time, in order to avoid errors in judgment, it is also necessary to refer to the air density information. For example: Under normal circumstances, when the wind speed is higher, the air density should be smaller, because the fan is working normally. If the fan has an abnormal speed, the wind speed decreases and the air density will increase. Based on this, it is also possible to combine the density information on the basis of wind speed detection. For example, when the air density information is less than the density information corresponding to the 5th gear, it can be further confirmed again that the fan is abnormal. When both judgments are abnormal, the result that the fan working state is abnormal is output. Alternatively, if both the wind speed detection and the density detection determine that the fan is normal, the result that the fan is in a normal working state is output. Alternatively, if one of the wind speed detection and the density detection determines that the fan is abnormal, the current detection result can be temporarily ignored, and after the target time period, it is detected again. If after N times of detection, such as 3 times, 5 times, etc., it is still if one of the wind speed detection and the density detection determines that the fan is abnormal, then the result that the fan is in an abnormal working state can be output.

[0060] In order to better implement the embodiment of the present application, in one embodiment of the present application, the operating state of the fan is determined according to the air flow rate and air density information, including:

[0061] If the air flow rate is less than the target rate threshold or the air density information is greater than the target density threshold, the operating state of the fan is determined to be an icing state; if the air flow rate is greater than or equal to the target rate threshold or the air density information is less than or equal to the target density threshold, the operating state of the fan is determined to be an un-icing state.

[0062] The above embodiment provides a solution for determining the operating status of the fan based on the air flow rate and air density information. However, in the case of icing anomaly, it is not necessary to consider both situations at the same time. At this time, only one of the determination of the air flow rate or the determination of the air density needs to be abnormal, and then it can be directly determined that the fan has icing anomaly. Therefore, in the embodiment of the present application, if the fan monitoring is only used to detect icing anomaly, it can be determined based on only one of the determination conditions.

[0063] The target velocity threshold can be 0.5 m / s, and the target density threshold can be 1.2 kg / m3 Of course, it can also be set to other thresholds, which are not limited in the embodiments of the present application.

[0064] In order to better implement the embodiment of the present application, in one embodiment of the present application, after determining that the operating state of the fan is an icing state, the method further includes:

[0065] The target alarm device is controlled to output a first alarm message; the first alarm message is used to indicate that the operating state of the fan is an icing state.

[0066] The above-mentioned embodiment provides a scheme for monitoring whether the fan is in a frozen state. In order to make the user notice the abnormality of the fan and avoid damage to the fan, the embodiment of the present application also provides a scheme for outputting an alarm message corresponding to the freezing abnormality, that is, a first alarm message, when the fan is abnormally frozen. Among them, if it is determined that the fan is in a frozen state, the words "the fan is frozen" can be displayed on the display control panel of the refrigeration equipment. Alternatively, when the refrigeration equipment is connected to the user's mobile phone through the Internet of Things, the abnormal information of the fan freezing can be sent to the user's mobile phone. In the specific embodiment of the present application, the form of the alarm is not limited.

[0067] It should also be noted that, in the above embodiment, it is also introduced that the present application can be determined for different types of abnormalities. Therefore, similarly, the alarm can also be issued according to the specific abnormality type, for example, the corresponding specific abnormal information is issued in the above alarm manner, which will not be repeated here.

[0068] In order to better implement the embodiments of the present application, in one embodiment of the present application, after determining that the operating state of the fan is a freezing state, the method also includes: controlling the fan to stop.

[0069] In order to prevent the fan from continuing to work under abnormal conditions, the fan can be controlled to stop at this time. The control can be performed in any way here. For example, the processor of the refrigeration equipment determines that the fan is abnormal. At this time, the processor issues a fan shutdown command. This embodiment of the present application will not go into details.

[0070] In order to better implement the embodiment of the present application, in one embodiment of the present application, before obtaining the target vibration signal collected by the ultrasonic sensor, the method further includes:

[0071] Control the fan to start, and collect the initial vibration signal through the ultrasonic sensor; based on the initial vibration signal, determine whether the fan starts normally; if the fan does not start normally, control the target alarm device to output a second alarm message; the second alarm message is used to prompt the user to detect the fan status.

[0072] The above embodiment provides a solution for determining the working state of the fan based on a vibration signal. However, in some cases, after the fan receives the start command, the fan may be completely stationary and non-rotating due to damage. At this time, there is no air vibration. Therefore, the ultrasonic sensor cannot collect the vibration signal. Therefore, if the vibration signal collected by the initial vibration signal is 0Hz, or only a few hertz, it proves that the fan cannot effectively drive the air flow, and it can be proved that the fan is not working. In this case, an alarm for the non-working state, that is, the second alarm message, can be issued to inform the user that the fan is not working, and prompt the user to check the fan by himself. Similarly, the alarm method can be the same as the above description, which will not be repeated here.

[0073] In order to better implement the fan monitoring method in the embodiment of the present application, on top of the fan monitoring method, a fan monitoring device is also provided in the embodiment of the present application, which is applied to a refrigeration device. The refrigeration device includes an ultrasonic sensor and a fan. The ultrasonic sensor is arranged on the peripheral side of the fan. Figure 3 As shown, the device 300 includes:

[0074] An acquisition module 301 is used to acquire a target vibration signal collected by an ultrasonic sensor;

[0075] The processing module 302 is used to determine the operating state of the fan according to the target vibration signal.

[0076] In the fan monitoring device provided by the present application, the acquisition module 301 can collect the sound and vibration signals emitted by the fan when it is working through the ultrasonic sensor arranged on the side of the fan. Afterwards, the processing module 302 can detect the operating state of the fan by analyzing the sound and vibration signals of the fan, thereby determining whether the fan is abnormal, thereby ensuring the real-time and accuracy of the fan monitoring.

[0077] In some embodiments of the present application, the acquisition module 301 is specifically used to:

[0078] Determine the sampling frequency and sampling time;

[0079] According to the sampling frequency and sampling time, the ultrasonic sensor is controlled to collect the target vibration signal.

[0080] In some embodiments of the present application, the processing module 302 is specifically used to:

[0081] Analyze the target vibration signal to determine the air flow rate and air density information around the fan;

[0082] The operating status of the fan is determined based on the air flow rate and air density information.

[0083] In some embodiments of the present application, the processing module 302 is specifically used to:

[0084] If the air flow rate is less than the target rate threshold or the air density information is greater than the target density threshold, it is determined that the operation state of the fan is an icing state;

[0085] If the air flow rate is greater than or equal to the target rate threshold or the air density information is less than or equal to the target density threshold, it is determined that the operating state of the fan is an un-iced state.

[0086] In some embodiments of the present application, the processing module 302 is specifically used to:

[0087] The target alarm device is controlled to output a first alarm message; the first alarm message is used to indicate that the operating state of the fan is an icing state.

[0088] In some embodiments of the present application, the processing module 302 is specifically used to:

[0089] Control the fan to stop.

[0090] In some embodiments of the present application, the processing module 302 is specifically used to:

[0091] Control the fan to start and collect the initial vibration signal through the ultrasonic sensor;

[0092] Based on the initial vibration signal, determine whether the fan starts normally;

[0093] If the fan fails to start normally, the target alarm device is controlled to output a second alarm message; the second alarm message is used to prompt the user to detect the status of the fan.

[0094] The present application also provides a refrigerator, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the steps in any one of the fan monitoring methods in the present application. The refrigerator integrates any one of the fan monitoring methods provided in the present application. Figure 4 As shown, it shows a schematic diagram of the structure of the refrigerator involved in the embodiment of the present application, specifically:

[0095] The refrigerator may include one or more processing core processors 401, one or more computer-readable storage media memories 402, a power supply 403, an input unit 404 and other components. Those skilled in the art will appreciate that Figure 4 The refrigerator structure shown in the figure does not constitute a limitation on the refrigerator, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0096] The processor 401 is the control center of the refrigerator. It uses various interfaces and lines to connect various parts of the entire refrigerator. By running or executing software programs and / or modules stored in the memory 402, and calling data stored in the memory 402, it performs various functions of the refrigerator and processes data, thereby monitoring the refrigerator as a whole. 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 (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. Preferably, the processor 401 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, the user interface and the application program, etc., and the modem processor mainly processes wireless communication. It is understandable that the above-mentioned modem processor may not be integrated into the processor 401.

[0097] 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, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the refrigerator, etc. In addition, the memory 402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 with access to the memory 402.

[0098] The refrigerator further includes a power supply 403 for supplying power to various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The power supply 403 can also include any components such as one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, and power status indicators.

[0099] The refrigerator may further include an input unit 404, which may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0100] Although not shown, the refrigerator may further include a display unit, etc., which will not be described in detail herein. Specifically in this embodiment, the processor 401 in the refrigerator will load 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 will run the application programs stored in the memory 402, thereby realizing various functions, such as:

[0101] Obtain target vibration signals collected by ultrasonic sensors;

[0102] Determine the operating status of the fan based on the target vibration signal.

[0103] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0104] To this end, an embodiment of the present application provides a computer-readable storage medium, which may include: a read-only memory (ROM), a random access memory (RAM), a 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 wind turbine monitoring methods provided in the embodiments of the present application. For example, the computer program loaded by the processor can execute the following steps:

[0105] Obtain target vibration signals collected by ultrasonic sensors;

[0106] Determine the operating status of the fan based on the target vibration signal.

[0107] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above, and will not be repeated here.

[0108] In specific implementation, the above units or structures can be implemented as independent entities, or can be arbitrarily combined to be implemented as the same or several entities. The specific implementation of the above units or structures can refer to the previous method embodiments, which will not be repeated here.

[0109] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0110] The above is a detailed introduction to a fan monitoring method and device provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fan monitoring method, characterized in that: Applied to a refrigeration device, the refrigeration device comprises an ultrasonic sensor and a fan, the ultrasonic sensor is arranged on the peripheral side of the fan, and the method comprises: Acquire a target vibration signal collected by the ultrasonic sensor; The operating state of the fan is determined according to the target vibration signal.

2. The wind turbine monitoring method according to claim 1, characterized in that: The step of obtaining the target vibration signal collected by the ultrasonic sensor includes: Determine the sampling frequency and sampling time; According to the sampling frequency and the sampling time, the ultrasonic sensor is controlled to collect the target vibration signal.

3. The wind turbine monitoring method according to claim 1, characterized in that: Determining the operating state of the fan according to the target vibration signal includes: Analyzing the target vibration signal to determine the air flow rate and air density information around the fan; The operating state of the fan is determined according to the air flow rate and the air density information.

4. The wind turbine monitoring method according to claim 3, characterized in that: Determining the operating state of the fan according to the air flow rate and the air density information includes: If the air flow rate is less than a target rate threshold or the air density information is greater than a target density threshold, determining that the operating state of the fan is an icing state; If the air flow rate is greater than or equal to the target rate threshold or the air density information is less than or equal to the target density threshold, it is determined that the operating state of the fan is an un-iced state.

5. The wind turbine monitoring method according to claim 4, characterized in that: After determining that the operating state of the fan is an icing state, the method further includes: The target alarm device is controlled to output a first alarm message; the first alarm message is used to indicate that the operating state of the fan is an icing state.

6. The wind turbine monitoring method according to claim 4, characterized in that: After determining that the operating state of the fan is an icing state, the method further includes: The fan is controlled to stop.

7. The wind turbine monitoring method according to claim 1, characterized in that: Before acquiring the target vibration signal collected by the ultrasonic sensor, the method further includes: Controlling the fan to start, and collecting an initial vibration signal through the ultrasonic sensor; Based on the initial vibration signal, determining whether the fan is started normally; If the fan fails to start normally, the target alarm device is controlled to output a second alarm message; the second alarm message is used to prompt the user to detect the status of the fan.

8. A fan monitoring device, characterized in that: Applied to refrigeration equipment, the refrigeration equipment includes an ultrasonic sensor and a fan, the ultrasonic sensor is arranged on the peripheral side of the fan, and the device includes: An acquisition module, used to acquire a target vibration signal collected by the ultrasonic sensor; A processing module is used to determine the operating state of the fan according to the target vibration signal.

9. A refrigerator, characterized in that: The refrigerator comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the steps in the fan monitoring method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps in the wind turbine monitoring method according to any one of claims 1 to 7.

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