Equipment detection method and device, electronic equipment and computer readable storage medium

Abstract

The embodiment of the invention discloses an equipment detection method and device, electronic equipment and a computer readable storage medium, and belongs to the technical field of equipment detection. According to the embodiment of the invention, the power change rate and the air volume change rate of the fan of the target equipment can be obtained, and the detection result of the fan is determined based on the power change rate and the air volume change rate. Therefore, by comprehensively considering the power change rate and the air volume change rate of the fan, various abnormal conditions of the fan can be timely and comprehensively detected under complex working conditions, so that the comprehensiveness and the accuracy of fan detection are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of equipment testing technology, specifically to an equipment testing method, apparatus, electronic device, and computer-readable storage medium. Background Technology

[0002] Air conditioning units are typically equipped with fans, which are prone to blockage after prolonged operation. Currently, the common method to determine if the indoor fan is blocked is to test its power rating.

[0003] However, this method often only allows for simple blockage detection of the indoor air conditioner fan. Unlike the indoor unit, the outdoor unit is installed outdoors, and its operating environment is usually more complex. Traditional methods that rely solely on motor power for blockage detection are insufficient for a comprehensive and accurate assessment of the outdoor unit. Summary of the Invention

[0004] This application provides a device testing method, apparatus, electronic device, and computer-readable storage medium. By comprehensively considering the power change rate and air volume change rate of the target device's fan, it is possible to achieve comprehensive and accurate testing of the fan in complex environments.

[0005] In a first aspect, embodiments of this application provide a device detection method, including:

[0006] Obtain the power change rate and air volume change rate of the target device's fan;

[0007] The detection result of the fan is determined based on the power change rate and the air volume change rate.

[0008] In one embodiment, the power change rate and air volume change rate of the fan are determined based on the following method:

[0009] The actual power and actual air volume of the fan are collected according to the preset collection cycle.

[0010] When the current acquisition period is the first acquisition period, the power change rate and the air volume change rate are determined based on the actual power, actual air volume and actual fan speed of the current acquisition period;

[0011] If the current acquisition cycle is not the first acquisition cycle, the power change rate is determined based on the actual power of the current acquisition cycle and the actual power of the previous acquisition cycle, and the air volume change rate is determined based on the actual air volume of the current acquisition cycle and the actual air volume of the previous acquisition cycle.

[0012] In one embodiment, determining the power change rate and the air volume change rate based on the actual power, actual air volume, and actual fan speed of the current acquisition period includes:

[0013] Based on the actual rotational speed of the fan and the first mapping relationship, the reference power and reference air volume are determined; the first mapping relationship characterizes the correspondence between the rotational speed, power and air volume of the target equipment when it is used for the first time after installation.

[0014] The power change rate is determined based on the reference power and the actual power in the current acquisition cycle;

[0015] The air volume change rate is determined based on the reference air volume and the actual air volume in the current acquisition cycle.

[0016] In one embodiment, determining the detection result of the fan based on the power change rate and the air volume change rate includes:

[0017] If the air volume change rate is greater than a first threshold and less than or equal to a second threshold, and the power change rate is greater than a third threshold, the detection result is determined to be the first detection result; the first detection result indicates that the fan has experienced a first-level blockage.

[0018] If the rate of change of air volume is greater than a first threshold and less than or equal to a second threshold, and the rate of change of power is less than a fourth threshold, the detection result is determined to be the second detection result; the second detection result indicates that the fan blades have suffered first-level damage.

[0019] If the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the sixth threshold and less than the seventh threshold, the detection result is determined to be the third detection result; the third detection result indicates that the fan has experienced a second level of blockage.

[0020] If the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the eighth threshold and less than the ninth threshold, the detection result is determined to be the fourth detection result; the fourth detection result indicates that the fan blade is broken or the fan blade has suffered second-level damage.

[0021] If the rate of change of air volume is less than the fifth threshold and the rate of change of power is greater than the tenth threshold, the detection result is determined to be the fifth detection result; the fifth detection result indicates that the fan has experienced a third-level blockage.

[0022] If the rate of change of air volume is less than the fifth threshold and the rate of change of power is less than or equal to the tenth threshold, the detection result is determined to be the sixth detection result; the sixth detection result indicates that the wind turbine blade has suffered third-level damage.

[0023] In one embodiment, the method further includes:

[0024] If the detection result is the first detection result, the fan is controlled to continue running, and a first prompt message is output; the first prompt message is used to instruct the clearing of obstructions;

[0025] If the detection result is the second detection result or the fourth detection result, the fan is kept running, and a second prompt message is output; the second prompt message is used to instruct the fan to be maintained.

[0026] If the detection result is the third detection result, control the fan to reduce its speed and output the first prompt message;

[0027] If the detection result is the fifth detection result, control the fan to stop running and output the first prompt message;

[0028] If the detection result is the sixth detection result, control the fan to stop running and output the second prompt message.

[0029] In one embodiment, the method further includes:

[0030] At preset time intervals, the actual rotational speed of the fan is acquired, and based on the actual air volume of the fan in multiple acquisition cycles within the preset time interval, the air volume change rate corresponding to multiple acquisition cycles is determined.

[0031] Based on the actual rotational speed of the fan and the second mapping relationship, a reference air volume is determined, and a target air volume change rate between the actual air volume of the fan and the reference air volume is determined; the second mapping relationship characterizes the correspondence between the rotational speed and air volume when the target equipment is used for the first time after installation.

[0032] The detection result of the fan is determined based on the target air volume change rate and the air volume change rate corresponding to multiple acquisition cycles.

[0033] In one embodiment, the target device is an air conditioner, and the fan is the outdoor fan of the air conditioner;

[0034] The determination of the fan's detection result based on the target airflow change rate and the airflow change rate corresponding to multiple acquisition cycles includes:

[0035] The operating mode of the air conditioner is obtained when the target air volume change rate is less than the eleventh threshold and the air volume change rate corresponding to multiple collection cycles is greater than the twelfth threshold.

[0036] When the operating mode is cooling mode, the detection result is determined to be the seventh detection result; the seventh detection result represents the dust accumulation in the outdoor fan.

[0037] When the operating mode is heating mode, the detection result is determined to be the eighth detection result; the eighth detection result indicates that the external fan is frosted.

[0038] In one embodiment, the method further includes:

[0039] In response to a test command, the test speed, test power, and test air volume of the fan are acquired; the test command is a test command issued by the user when the target equipment is installed or when the target equipment leaves the factory.

[0040] Based on the test rotation speed and the third mapping relationship, the standard power and standard air volume are determined; the third mapping relationship characterizes the correspondence between the rotation speed, power and air volume of the target equipment under test conditions.

[0041] The test result of the fan is determined based on the power ratio between the test power and the standard power, and the air volume ratio between the test air volume and the standard air volume.

[0042] Secondly, embodiments of this application provide a device testing apparatus, the apparatus comprising:

[0043] The data acquisition module is used to acquire the power change rate and air volume change rate of the fan in the target device;

[0044] The fan detection module is used to determine the detection result of the fan based on the power change rate and the air volume change rate.

[0045] In one embodiment, the power change rate and air volume change rate of the fan are determined by the following method:

[0046] The actual power and actual air volume of the fan are collected according to the preset collection cycle.

[0047] When the current acquisition period is the first acquisition period, the power change rate and the air volume change rate are determined based on the actual power, actual air volume and actual fan speed of the current acquisition period;

[0048] If the current acquisition cycle is not the first acquisition cycle, the power change rate is determined based on the actual power of the current acquisition cycle and the actual power of the previous acquisition cycle, and the air volume change rate is determined based on the actual air volume of the current acquisition cycle and the actual air volume of the previous acquisition cycle.

[0049] In one embodiment, determining the power change rate and the air volume change rate based on the actual power, actual air volume, and actual fan speed of the current acquisition period includes:

[0050] Based on the actual rotational speed of the fan and the first mapping relationship, the reference power and reference air volume are determined; the first mapping relationship characterizes the correspondence between the rotational speed, power and air volume of the target equipment when it is used for the first time after installation.

[0051] The power change rate is determined based on the reference power and the actual power in the current acquisition cycle;

[0052] The air volume change rate is determined based on the reference air volume and the actual air volume in the current acquisition cycle.

[0053] In one embodiment, the wind turbine detection module includes:

[0054] The first detection submodule is used to determine the detection result as the first detection result when the air volume change rate is greater than a first threshold and less than or equal to a second threshold, and the power change rate is greater than a third threshold; the first detection result indicates that the fan has a first-level blockage;

[0055] The second detection submodule is used to determine the detection result as the second detection result when the air volume change rate is greater than the first threshold and less than or equal to the second threshold, and the power change rate is less than the fourth threshold; the second detection result indicates that the fan blades have suffered first-level damage;

[0056] The third detection submodule is used to determine the detection result as the third detection result when the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the sixth threshold and less than the seventh threshold; the third detection result indicates that the fan has a second level of blockage;

[0057] The fourth detection submodule is used to determine the detection result as the fourth detection result when the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the eighth threshold and less than the ninth threshold; the fourth detection result indicates that the fan blade is broken or the fan blade has suffered second-level damage.

[0058] The fifth detection submodule is used to determine the detection result as the fifth detection result when the air volume change rate is less than the fifth threshold and the power change rate is greater than the tenth threshold; the fifth detection result indicates that the fan has a third-level blockage;

[0059] The sixth detection submodule is used to determine the detection result as the sixth detection result when the air volume change rate is less than the fifth threshold and the power change rate is less than or equal to the tenth threshold; the sixth detection result indicates that the wind turbine blade has suffered third-level damage.

[0060] In one embodiment, the device detection apparatus further includes:

[0061] The first processing module is configured to, when the detection result is the first detection result, control the fan to continue running and output a first prompt message; the first prompt message is used to instruct the clearing of obstructions;

[0062] The second processing module is used to control the fan to continue running and output a second prompt message when the detection result is the second detection result or the fourth detection result; the second prompt message is used to instruct the fan to be maintained.

[0063] The third processing module is used to control the fan to reduce its speed and output the first prompt information when the detection result is the third detection result;

[0064] The fourth processing module is used to control the fan to stop running and output the first prompt information when the detection result is the fifth detection result;

[0065] The fifth processing module is used to control the fan to stop running and output the second prompt information when the detection result is the sixth detection result.

[0066] In one embodiment, the device detection apparatus further includes:

[0067] The air volume information acquisition module is used to acquire the actual rotation speed of the fan at preset time intervals, and determine the air volume change rate corresponding to multiple acquisition cycles based on the actual air volume of the fan in multiple acquisition cycles within the preset time interval.

[0068] The reference air volume determination module is used to determine a reference air volume based on the actual rotational speed of the fan and a second mapping relationship, and to determine the target air volume change rate between the actual air volume of the fan and the reference air volume; the second mapping relationship characterizes the correspondence between the rotational speed and air volume when the target equipment is used for the first time after installation;

[0069] The first result determination module is used to determine the detection result of the fan based on the target air volume change rate and the air volume change rate corresponding to multiple acquisition cycles.

[0070] In one embodiment, the target device is an air conditioner, and the fan is the outdoor fan of the air conditioner; the first result determination module includes:

[0071] The mode acquisition submodule is used to acquire the operating mode of the air conditioner when the target air volume change rate is less than the eleventh threshold and the air volume change rate corresponding to multiple acquisition cycles is greater than the twelfth threshold.

[0072] The dust accumulation detection submodule is used to determine the detection result as the seventh detection result when the operating mode is cooling mode; the seventh detection result represents the dust accumulation on the outdoor fan.

[0073] The frost detection submodule is used to determine the detection result as the eighth detection result when the operating mode is heating mode; the eighth detection result indicates that the external fan is frosted.

[0074] In one embodiment, the device detection apparatus further includes:

[0075] The test parameter acquisition module is used to acquire the test speed, test power and test air volume of the fan in response to the test command; the test command is the test command issued by the user when the target equipment is installed or when the target equipment leaves the factory;

[0076] The standard parameter determination module is used to determine the standard power and standard air volume based on the test rotation speed and the third mapping relationship; the third mapping relationship characterizes the correspondence between the rotation speed, power and air volume of the target equipment under test conditions.

[0077] The second result determination module is used to determine the test result of the fan based on the power ratio between the test power and the standard power, and the air volume ratio between the test air volume and the standard air volume.

[0078] Thirdly, embodiments of this application also provide an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the steps in the device detection method described above.

[0079] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps in the device detection method described above.

[0080] Fifthly, embodiments of this application also provide a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various optional implementations described in the embodiments of this application.

[0081] In summary, the embodiments of this application can obtain the power change rate and air volume change rate of the target device's fan, and determine the fan's detection result based on these rates. Thus, by comprehensively considering both the fan's power change rate and air volume change rate, timely and comprehensive detection of various abnormal conditions of the fan can be achieved under complex operating conditions, thereby significantly improving the comprehensiveness and accuracy of fan detection. Attached Figure Description

[0082] To more clearly illustrate the technical solutions in this application, the accompanying drawings used 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 effort.

[0083] Figure 1 This is a schematic diagram of the steps of a device testing method provided in an embodiment of this application;

[0084] Figure 2 This is a schematic diagram of the structure of a device testing apparatus provided in an embodiment of this application;

[0085] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0086] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0087] It should be noted that as air conditioners are used continuously, the air conditioner fan will gradually become clogged with dust or other objects, affecting the operating efficiency of the air conditioner.

[0088] In related technologies, the power of the indoor fan is typically measured to determine if it is blocked. However, the outdoor air conditioner fan is installed outdoors, and its operating environment is more complex and harsher than that of the indoor fan. It not only faces the risk of vent blockage, but the scenarios for blockage also vary. Blockage may be a gradual accumulation, or it may be caused by the inhalation of large foreign objects in a short period. Furthermore, there may be various abnormalities such as an installation environment that does not meet site requirements or damaged fan blades. Therefore, traditional methods of detecting blockages solely based on motor power are insufficient for comprehensive and accurate testing of the outdoor air conditioner unit.

[0089] To address the current difficulty in comprehensively and accurately inspecting wind turbines, this application aims to provide an equipment inspection method that can acquire the power change rate and airflow change rate of the target equipment's wind turbine, and determine the wind turbine's inspection results based on these rates. Thus, by comprehensively considering both the power change rate and airflow change rate, timely and comprehensive detection of various abnormal conditions of the wind turbine can be achieved under complex operating conditions, thereby significantly improving the comprehensiveness and accuracy of wind turbine inspection.

[0090] The following sections provide detailed descriptions of each example. It should be noted that the order in which the embodiments are described is not intended to limit the priority of the embodiments.

[0091] Figure 1 A flowchart illustrating a device detection method according to an embodiment of this application is shown. The device detection method can be performed by a device detection apparatus, which can be integrated into an electronic device, such as a server or a terminal.

[0092] The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, network acceleration services (Content Delivery Network, CDN), as well as big data and artificial intelligence platforms.

[0093] The terminal can be an air conditioner, smartphone, tablet computer, laptop computer, desktop computer, etc., but is not limited to these. The terminal and the server can be connected directly or indirectly through wired or wireless communication, which is not limited herein.

[0094] The following sections provide detailed descriptions of each example. It should be noted that the order in which the embodiments are described is not intended to limit the preferred order of the embodiments.

[0095] In this embodiment, the description will be from the perspective of a device detection apparatus, which can be integrated into a server or terminal. To facilitate the explanation of the device detection method of this application, the following will describe the device detection apparatus integrated into the target device in detail, that is, the target device will be used as the execution subject for detailed explanation.

[0096] Reference Figure 1 This application illustrates a device testing method, which may include the following steps S101 to S102, as detailed below:

[0097] S101. Obtain the power change rate and air volume change rate of the fan of the target equipment.

[0098] In this embodiment, the target equipment refers to equipment equipped with a fan, which includes, but is not limited to, air conditioning systems, tunnel ventilation systems, track ventilation fans, parking lot ventilation systems, high-voltage switchgear, greenhouse ventilation systems, and electronic equipment heat dissipation systems. For example, when the target equipment is an air conditioning system, the fan may include one or more of indoor fans and outdoor fans.

[0099] In this embodiment, the target device can collect the actual power and actual air volume of the fan during its operation, and then calculate the power change rate and air volume change rate of the fan based on the collected actual power and actual air volume. The target device can also obtain the power change rate and air volume change rate of the fan from other devices via network, Bluetooth, etc. For example, the other devices can be detection devices specifically configured for the target device. This embodiment does not limit the method of obtaining the power change rate and air volume change rate.

[0100] In this embodiment, the actual power of the fan can be directly obtained from the motor control system of the target device, and the actual air volume of the fan can be obtained by an air volume acquisition device, such as an anemometer, installed at the air outlet.

[0101] In this embodiment, the fan operates at high power when the motor is first started and when the fan switches gears, which can lead to significant errors in power and airflow calculations. To avoid large calculation errors, the power change rate and airflow change rate can be calculated after the motor has stabilized. For example, the power change rate and airflow change rate can be calculated 5 minutes after the motor has started.

[0102] S102. Determine the test results of the fan based on the power change rate and air volume change rate.

[0103] In this embodiment, the power change rate can reflect the fluctuation of the fan's operating energy consumption, such as the power abnormality caused by changes in motor load; the air volume change rate can reflect the fluctuation of the airflow output efficiency, such as the air volume reduction caused by blockage or blade damage.

[0104] In this embodiment, the detection results of the wind turbine may specifically include first detection information and second detection information. The first detection information characterizes the type of abnormality of the wind turbine, and the second detection information characterizes the level of abnormality under that type, where the level of abnormality characterizes the severity of the abnormality. For example, the detection result of the wind turbine could be that the wind turbine has experienced a level one blockage, where the second detection information indicates that the wind turbine is blocked, and the second detection information is level one.

[0105] In this embodiment, different fault modes can be distinguished by correlating the power change rate with the airflow change rate. Specifically, when the power abnormally increases while the airflow decreases, the fan detection result can be determined to be a blockage-related fault. By analyzing the changes in the power change rate and the airflow change rate, it can be further identified whether the fan has experienced minor or severe blockage. When the power abnormally decreases while the airflow decreases, the fan detection result can be determined to be a blade damage-related fault. By analyzing the changes in the power change rate and the airflow change rate, it can be identified whether the blades have experienced minor or severe damage.

[0106] In this embodiment, by comprehensively considering both the power change rate and the air volume change rate, the limitations of traditional single power detection can be overcome, and various abnormal types that traditional methods cannot distinguish can be effectively identified. Thus, under complex operating conditions, timely and comprehensive detection of various abnormal conditions of the fan can be achieved, significantly improving the comprehensiveness and accuracy of fan detection.

[0107] In one feasible implementation, the power change rate and air volume change rate of the fan are determined through steps S201 to S203, as follows:

[0108] S201. Collect the actual power and actual air volume of the fan according to the preset collection cycle.

[0109] In this embodiment, after the target device is turned on or the fan shifts gears, the actual speed of the fan is acquired. When the actual speed of the fan is detected to be stable, the actual power and actual air volume of the fan are acquired according to a preset acquisition cycle.

[0110] In this embodiment, the actual rotational speed of the fan can be collected once at a preset interval. After the number of collections reaches a threshold, the maximum and minimum rotational speeds among the multiple actual rotational speeds are compared. If the deviation between the maximum and minimum rotational speeds is less than the rotational speed threshold, it is determined that the actual rotational speed of the fan is in a stable state.

[0111] In this embodiment, by collecting the actual power and actual air volume of the fan when the actual speed of the fan is stable, it is possible to effectively avoid inaccurate actual power and actual air volume caused by speed fluctuations, thereby improving the accuracy of calculation.

[0112] In this embodiment, the acquisition period can be 30 seconds. Of course, in other embodiments, the acquisition period can be greater than 30 seconds or less than 30 seconds; that is, the acquisition period can also be 5 seconds, 10 seconds, 20 seconds, 40 seconds or 60 seconds, etc. This embodiment does not limit this.

[0113] In this embodiment, users can customize the acquisition period on the interactive interface of the target device according to actual needs. For example, when the air conditioning system needs to accurately keep the target object warm, the acquisition period can be set to a smaller value, such as 2 seconds; or, when the control accuracy requirement of the air conditioning system is not high, the acquisition period can be set to a larger value, such as 120 seconds, in order to reduce computing energy consumption.

[0114] S202. When the current acquisition cycle is the first acquisition cycle, determine the power change rate and air volume change rate based on the actual power, actual air volume and actual fan speed of the current acquisition cycle.

[0115] In this embodiment, since the actual power and air volume collected in the first collection cycle do not have corresponding historical parameters after the fan meets the data collection conditions, unlike other collection cycles with historical data collection periods, it is impossible to directly calculate the power change rate and air volume change rate. If the actual power and air volume of the first collection cycle are discarded, abnormal conditions of the fan may not be detected. For example, the actual power and air volume of the fan are relatively stable after the second collection cycle. However, before the fan starts, a small-scale blockage may have occurred. Although the fan can operate relatively stably under blockage conditions, its operating efficiency has decreased due to the blockage. In this case, it may not be possible to identify the blockage phenomenon based solely on collection cycles other than the first collection cycle.

[0116] In this embodiment, in order to identify the above-mentioned abnormal situation, the target device will collect the actual power and actual air volume corresponding to the first collection cycle, as well as the actual rotation speed of the fan. Then, based on the actual rotation speed of the fan corresponding to the first collection cycle, a suitable reference power and reference air volume can be determined for the fan, thereby realizing the calculation of the power change rate and air volume change rate.

[0117] S203. If the current acquisition cycle is not the first acquisition cycle, determine the power change rate based on the actual power of the current acquisition cycle and the actual power of the previous acquisition cycle, and determine the air volume change rate based on the actual air volume of the current acquisition cycle and the actual air volume of the previous acquisition cycle.

[0118] In this embodiment, for any acquisition cycle other than the first acquisition cycle, since there are corresponding historical parameters for the average actual power and actual air volume of the acquisition cycle, the power change rate and air volume change rate can be directly calculated based on the actual power and actual air volume of the current acquisition cycle and the actual power and actual air volume of the previous acquisition cycle.

[0119] In practice, we can first calculate the power difference between the actual power of the current acquisition cycle and the actual power of the previous acquisition cycle. Then, the ratio of the power difference to the actual power of the previous acquisition cycle is determined as the power change rate. When the power change rate is greater than zero, it indicates that the power of the fan has increased; when the power change rate is less than zero, it indicates that the power of the fan has decreased.

[0120] It should be noted that the calculation method for air volume change rate can be the same as that for power change rate, and will not be repeated here.

[0121] In this implementation, differentiated data processing methods are employed for different acquisition cycles, enabling comprehensive calculation of power and airflow change rates for each cycle. For the first acquisition cycle, appropriate reference power and airflow are determined by combining actual rotational speed for rate of change calculation, effectively addressing the lack of historical data reference during system initialization and thus enabling accurate detection of existing fan anomalies. In scenarios beyond the first acquisition cycle, a calculation method comparing data from adjacent cycles is used, effectively capturing instantaneous changes in fan operating status by tracking dynamic fluctuations in power and airflow in real time. This ensures accuracy during system startup and enables real-time monitoring during continuous operation, allowing for effective detection of various anomalies that may occur in external fans under complex operating conditions, such as sudden blockages or gradual performance degradation.

[0122] In a feasible implementation, the step in S202 of determining the power change rate and air volume change rate based on the actual power, actual air volume, and actual fan speed in the current data collection period may specifically include sub-steps S202-1 to S202-3, as follows:

[0123] S202-1. Based on the actual speed of the fan and the first mapping relationship, determine the reference power and reference air volume.

[0124] In this embodiment, the first mapping relationship represents the correspondence between the rotational speed, power, and air volume of the target device when it is used for the first time after installation.

[0125] In this embodiment, after the installation personnel complete the installation of the target equipment, they test the fan during the first use of the target equipment. After the fan speed stabilizes, they record the power and air volume of the fan at different speeds and input the recorded data into the target equipment so that the target equipment can build a first mapping relationship based on the input recorded data.

[0126] In this embodiment, the installer can also trigger a data acquisition command through the target device's data acquisition interface or a preset data acquisition button when the target device is used for the first time after installation. This will cause the target device to respond to the data acquisition command and automatically collect the power and air volume of the fan at different speeds after the fan speed is stabilized. Then, based on the collected data, a first mapping relationship can be constructed.

[0127] In this embodiment, the target device can store the first mapping relationship in the form of a first mapping relationship table. Then, after the actual speed of the fan is collected, the reference power and reference air volume can be determined by looking up the first mapping relationship table.

[0128] For example, referring to Table 1, one example of the first mapping table is shown.

[0129] Refer to Table 1, the first mapping relationship table.

[0130]

[0131]

[0132] It should be noted that the timestamp 1001 does not represent the actual time, but rather a system-preset first parameter identification code. This code indicates that the parameters corresponding to the first parameter identification code are the operating parameters when the target device is first used after installation. 1001 is just one example of the first parameter identification code; it can be set to other values. For instance, if the timestamp standard uses a 32-bit single-storage unit in a computer, with the highest bit being the sign bit and the remaining 31 bits storing valid data, the maximum data that can be stored is 2147483647. In this case, the first parameter identification code can be any value from 0 to 2147483647. Alternatively, if the earliest sale date of the target device is 2025-06-01, with a timestamp of 1748707200, then the first parameter identification code can be any value from 0 to 1748707200.

[0133] In this embodiment, the first mapping relationship reflects the power and air volume of the fan at various wind speeds in the initial state. Since the fan performance is usually ideal in the initial state, a suitable reference power and reference air volume can be determined for the fan based on the actual rotational speed of the fan corresponding to the first acquisition cycle. By comparing the actual power and actual air volume corresponding to the first acquisition cycle with the reference power and reference air volume, it is possible to effectively determine whether there are any abnormalities in the fan performance.

[0134] S202-2. Determine the power change rate based on the reference power and the actual power in the current acquisition cycle.

[0135] In this embodiment, the reference power can be used as the historical power of the actual power in the current acquisition period for calculation. That is, the ratio of the power difference between the reference power and the actual power to the reference power can be determined as the power change rate.

[0136] S202-3. Determine the air volume change rate based on the reference air volume and the actual air volume in the current data collection period.

[0137] In this embodiment, the reference air volume can be used as the historical air volume of the actual air volume in the current data collection period for calculation. That is, the ratio of the target air volume change rate between the reference air volume and the actual air volume to the reference air volume can be determined as the air volume change rate.

[0138] In this embodiment, by establishing a first mapping relationship for the target equipment during its initial use after installation, reference data for improving the health status of the fan can be provided for subsequent equipment detection. Then, after each startup of the target equipment, the actual rotational speed of the first data collection cycle can be matched with the reference data in this mapping relationship to obtain the theoretical reference power and reference airflow. Thus, by calculating the difference between the current actual operating parameters and the theoretical parameters of the equipment's initial state, abnormal fluctuations in power and airflow can be accurately identified, and various abnormal conditions that have occurred in the fan can be effectively detected.

[0139] In one feasible implementation, the step of determining the fan's detection result based on the power change rate and air volume change rate may include sub-steps S101-1 to S101-6, as follows:

[0140] S101-1. If the rate of change of air volume is greater than the first threshold and less than or equal to the second threshold, and the rate of change of power is greater than the third threshold, the detection result shall be determined as the first detection result.

[0141] In this embodiment, the first detection result indicates that the fan has experienced a first-level blockage. The first level is used to characterize the severity of the blockage; for example, a first-level blockage may indicate that the fan's blockage rate is greater than a first blockage rate threshold, or that the fan's blockage rate is within a first blockage rate range.

[0142] In this embodiment, the air volume change rate and the power change rate can be positive, zero, or negative. When the air volume change rate or the power change rate is positive, it indicates that the air volume or power is increasing; when the air volume change rate or the power change rate is negative, it indicates that the air volume or power is decreasing.

[0143] For example, the first threshold can be set to -40%, the second threshold can be set to -1%, and the third threshold can be set to 5%. When -40% < airflow change rate ≤ -1% and power change rate > 5% is detected, it indicates that the fan has a slight decrease in airflow accompanied by a slight increase in fan power. At this time, it can be determined that the fan has a slight blockage, and the detection result is determined as the first detection result.

[0144] It should be noted that when the rate of change of air volume is greater than the second threshold, it indicates that the air volume of the fan is normal and the motor is usually in normal condition. Therefore, there is no need to detect the power, and the fan can be controlled to continue to run.

[0145] S101-2. If the rate of change of air volume is greater than the first threshold and less than or equal to the second threshold, and the rate of change of power is less than the fourth threshold, the detection result shall be determined as the second detection result.

[0146] In this embodiment, the second detection result indicates that the fan blades of the wind turbine have suffered first-level damage. The first level characterizes the severity of the damage; for example, first-level damage may indicate that the area damage rate of the fan blades is greater than a first damage rate threshold, or that the area damage rate of the wind turbine is within the first damage rate range. The area damage rate represents the ratio between the damaged area of ​​the fan blades and the total area.

[0147] For example, the first threshold can be set to -40%, the second threshold can be set to -1%, and the fourth threshold can be set to 0.

[0148] In this embodiment, when -40% < air volume change rate ≤ -1% and power change rate < 0 is detected, it indicates that the fan has experienced a slight decrease in power. At this time, it can be determined that the fan blades have suffered slight damage, and the detection result is thus determined as the second detection result.

[0149] S101-3. If the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the sixth threshold and less than the seventh threshold, the detection result is determined to be the third detection result.

[0150] In this embodiment, the third detection result indicates that the fan has experienced a second level of blockage. A second level of blockage can indicate that the fan's blockage rate is greater than a second blockage rate threshold, or that the fan's blockage rate falls within a second blockage rate range. Specifically, the second blockage rate threshold is greater than a first blockage rate threshold, and the lower limit of the second blockage rate range is greater than the upper limit of the first blockage rate range.

[0151] For example, the fifth threshold can be set to -60%, the first threshold can be set to -40%, the sixth threshold can be set to 40%, and the seventh threshold can be set to 60%. When it is detected that -60% ≤ airflow change rate < -40% and 40% < power change rate < 60%, it indicates that the fan airflow has decreased moderately while the power has increased moderately. At this time, it can be determined that the fan has been moderately blocked, and the detection result is determined to be the third detection result.

[0152] S101-4. If the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the eighth threshold and less than the ninth threshold, the detection result is determined to be the fourth detection result.

[0153] In this embodiment, the fourth detection result indicates that the fan blades are broken or that the fan blades have suffered second-level damage. Second-level damage can be characterized by the fan blade area damage rate being greater than a second damage rate threshold, or the fan area damage rate being within the second damage rate range. Specifically, the second damage rate threshold is greater than the first damage rate threshold, and the lower limit of the second damage rate range is greater than the upper limit of the first damage rate range.

[0154] For example, the fifth threshold can be set to -60%, the first threshold can be set to -40%, the eighth threshold can be set to -60%, and the ninth threshold can be set to -40%. When it is detected that -60% ≤ air volume change rate < -40% and -60% < power change rate ≤ -40%, it indicates that the fan air volume has decreased moderately and is accompanied by a moderate decrease in power. At this time, it can be determined that the fan blade has broken or suffered moderate damage, and thus the detection result is determined to be the fourth detection result.

[0155] S101-5. If the air volume change rate is less than the fifth threshold and the power change rate is greater than the tenth threshold, the detection result shall be determined as the fifth detection result.

[0156] In this embodiment, the fifth detection result indicates that the fan has experienced a third-level blockage. A third-level blockage indicates that the fan's blockage rate is greater than a third blockage rate threshold, or that the fan's blockage rate falls within a third blockage rate range. The third blockage rate threshold is greater than a second blockage rate threshold, and the lower limit of the third blockage rate range is greater than the upper limit of the second blockage rate range.

[0157] For example, the fifth threshold can be set to -60%, and the tenth threshold can be set to 0%. When the detected airflow change rate is <-60% and the power change rate is >0, it indicates that the fan airflow has dropped significantly while the power has increased. At this time, it can be determined that the fan is severely blocked, and the detection result is determined to be the fifth detection result.

[0158] S101-6. If the air volume change rate is less than the fifth threshold and the power change rate is less than or equal to the tenth threshold, the detection result is determined to be the sixth detection result.

[0159] In this embodiment, the sixth detection result indicates that the wind turbine blades have suffered third-level damage. Third-level damage can be characterized by the wind turbine blade area damage rate exceeding a third damage rate threshold, or the wind turbine area damage rate falling within the third damage rate range. The third damage rate threshold is greater than the second damage rate threshold, and the lower limit of the third damage rate range is greater than the upper limit of the second damage rate range.

[0160] For example, the fifth threshold can be set to -60%, and the tenth threshold can be set to 0%. When the detected air volume change rate is <-60% and the power change rate is <0, it indicates that the fan air volume has dropped significantly and is accompanied by a drop in power. At this time, it can be determined that the fan has suffered large-scale damage, and the detection result is determined to be the sixth detection result.

[0161] In this embodiment, if the detected airflow change rate is less than the fifth threshold, it indicates that the fan has experienced a serious fault requiring shutdown. At this time, the target device can set the preset shutdown flag to a first flag, which indicates that the fan needs to be shut down; for example, the first flag can be set to 1. When the shutdown flag is set to the first flag, the user will be unable to restart the fan, thus effectively preventing further damage. After clearing blockages in the fan or replacing the motor, the user can trigger a reset command to reset the shutdown flag to a second flag, which indicates that the fan does not need to be shut down; for example, the second flag can be set to 0. When the shutdown flag is reset to the second flag, the fan can start and run normally.

[0162] In this embodiment, by setting multiple thresholds for the rate of change of air volume and the rate of change of power, the differences in the changes of power and air volume under different fault modes can be quantified, thereby achieving a refined classification diagnosis of the degree of blockage, the type of damage to the fan blades, and the degree of loss, and thus effectively improving the accuracy of anomaly detection.

[0163] In one feasible implementation, the equipment testing method may further include steps S301-S305, as follows:

[0164] S301. If the detection result is the first detection result, control the fan to keep running and output the first prompt message.

[0165] In this embodiment, if the target device determines the detection result to be the first detection result, i.e., the fan has a first-level blockage, it indicates that the fan has a small-scale blockage. At this time, the fan can be controlled to continue running, and a first prompt message can be output. This first prompt message is used to instruct the clearing of the obstruction.

[0166] In this embodiment, the target device may also output a first alarm flag to characterize the first detection result. For example, the first alarm flag corresponding to the first detection result may be set to W1.

[0167] In this embodiment, by outputting alarm signs, maintenance personnel can quickly understand the fault type of the target equipment and then take corresponding maintenance strategies.

[0168] S302. If the detection result is the second or fourth detection result, control the fan to keep running and output the second prompt message.

[0169] In this embodiment, if the target device determines that the detection result is the second detection result or the fourth detection result, that is, the fan blades have suffered first-level damage, it means that the fan blades have suffered small-area damage, broken, or moderate damage, but can still work. At this time, the fan can be controlled to keep running and output a second prompt message, which is used to instruct the fan to be repaired.

[0170] In this embodiment, the target device may also output a second alarm flag to characterize the second detection result or a fourth alarm flag to characterize the fourth detection result. For example, the second alarm flag corresponding to the second detection result may be set to W2, and the second alarm flag corresponding to the fourth detection result may be set to W4.

[0171] S303. If the detection result is the third detection result, control the fan to reduce the speed and output the first prompt message.

[0172] In this embodiment, if the target device determines the detection result to be the third detection result, that is, the fan has a second level of blockage, it indicates that the fan has a moderate blockage. At this time, since the motor power has increased moderately, in order to ensure the safe operation of the fan, the fan speed can be reduced and the first prompt message can be output to indicate that cleaning is required.

[0173] In this embodiment, the target device may also output a third alarm flag to characterize the third detection result. For example, the third alarm flag corresponding to the third detection result may be set to W3.

[0174] S304. If the detection result is the fifth detection result, control the fan to stop running and output the first prompt message.

[0175] In this embodiment, if the target device determines the detection result to be the fifth detection result, that is, the fan has a third level of blockage, it indicates that the fan is severely blocked. In order to ensure the safe operation of the fan, the fan will be controlled to stop running, and the first prompt message will be output to instruct the fan to be cleaned.

[0176] In this embodiment, the target device can also output a fifth alarm flag to characterize the fifth detection result. For example, the fifth alarm flag corresponding to the fifth detection result can be set to W5.

[0177] S305. If the detection result is the sixth detection result, control the fan to stop running and output the second prompt message.

[0178] In this embodiment, if the target device determines the detection result to be the fifth detection result, that is, the fan has a third level of blockage, it indicates that the fan has a serious blockage. In order to ensure the safe operation of the fan, the fan will be controlled to stop running, and a second prompt message will be output to instruct the fan to be repaired.

[0179] In this embodiment, the target device can also output a sixth alarm flag to characterize the sixth detection result. For example, the sixth alarm flag corresponding to the sixth detection result can be set to W6.

[0180] In this embodiment, the first to sixth alarm signs may be alarm codes, text or images displayed on the screen, and / or sounds emitted by a sound-emitting device, and / or alarm lights, and / or digital or analog signals transmitted via wired or wireless means.

[0181] In this implementation, a multi-dimensional mapping relationship is established between detection results and equipment control strategies and maintenance prompts, enabling refined management and control of the wind turbine's operating status. For the mild blockage indicated by the first detection result, a strategy of maintaining operation and prompting cleaning is adopted, ensuring continuous equipment operation while providing timely warnings. For the second and fourth detection results involving blade damage, operation is maintained but a maintenance prompt is switched, balancing equipment availability and maintenance necessity. When a moderate blockage is detected by the third detection result, speed reduction combined with a cleaning prompt mitigates the risk of worsening blockage while avoiding sudden shutdown. For severe blockage by the fifth detection result and severe damage by the sixth detection result, shutdown protection measures are implemented, and cleaning or maintenance prompts are matched accordingly, effectively preventing further equipment damage. In this way, appropriate equipment control strategies and prompts can be precisely matched to different detection results, thereby ensuring the safe operation of the wind turbine while providing timely and effective maintenance guidance for users or maintenance personnel.

[0182] In one feasible implementation, the equipment detection method may further include steps S401 to S403, as follows:

[0183] 401. At each preset time interval, the actual rotational speed of the fan is obtained, and based on the actual air volume of the fan in multiple acquisition cycles within the preset time interval, the air volume change rate corresponding to multiple acquisition cycles is determined.

[0184] In this embodiment, considering that if the fan speed is constantly decreasing slowly, when the air volume change rate is greater than the second threshold, for example, -1% < air volume change rate < 0%, the steps S101-1 to S101-6 will not be able to identify this special case. Therefore, in order to accurately identify the above situation, the target device will also perform statistical analysis on the actual air volume within the preset time period at preset intervals, and then determine the fan speed decrease within the preset time period.

[0185] In this embodiment, the calculation method for the air volume change rate can refer to the calculation method for the air volume change rate in steps S201 to S203, and the calculation method will not be repeated here.

[0186] 402. Based on the actual speed of the fan and the second mapping relationship, determine the reference air volume, and determine the target air volume change rate between the actual air volume of the fan and the reference air volume.

[0187] In this embodiment, the second mapping relationship represents the correspondence between the rotational speed and airflow when the target device is used for the first time after installation. This second mapping relationship can be directly extracted from the first mapping relationship, or the extracted second mapping relationship can be stored separately. The construction method of the second mapping relationship will not be described in detail here.

[0188] In this embodiment, the target device can store the second mapping relationship in the form of a second mapping relationship table. Then, after the actual speed of the fan is collected, the reference air volume can be determined by looking up the second mapping relationship table.

[0189] For example, referring to Table 2, one example of a second mapping table is shown.

[0190] Refer to Table 2, the second mapping relationship table.

[0191] rotational speed air volume Timestamp 1000rpm 990CFS 1001 900rpm 790CFS 1001 800rpm 590CFS 1001 700rpm 410CFS 1001 1000rpm 990CFS 1001 900rpm 790CFS 1001 800rpm 590CFS 1001 700rpm 410CFS 1001

[0192] In this embodiment, based on the actual rotational speed and the second mapping relationship, the target device can query the reference airflow corresponding to the actual rotational speed. This reference airflow represents the ideal airflow of the target device at the actual rotational speed. The ratio of the airflow difference between the actual airflow and the reference airflow to the reference airflow is then determined as the target airflow change rate. This target airflow change rate reflects the overall decrease in the fan's airflow change rate within a preset time period.

[0193] 403. Based on the target air volume change rate and the air volume change rate corresponding to multiple acquisition cycles, determine the detection results of the fan.

[0194] In this embodiment, if the target air volume change rate is less than the eleventh threshold and the air volume change rate corresponding to multiple collection cycles is greater than the twelfth threshold, the detection result of the fan can be determined as the seventh detection result; the seventh detection result characterizes the dust accumulation on the fan.

[0195] For example, the eleventh threshold can be set to -30%, and the twelfth threshold can be set to -1%. When the detected air volume change rate is <-30% and the air volume change rate corresponding to any collection period is >-1%, it indicates that the air volume of the fan is decreasing little by little. At this time, it can be determined that the fan is accumulating dust, and thus the detection result is determined to be the first detection result.

[0196] In this embodiment, if the detection result is the seventh detection result, the fan can be kept running, and a third prompt message can be output; this third prompt message is used to instruct the fan to perform dust removal. Simultaneously, the target device can also output a seventh alarm flag to characterize the seventh detection result; for example, the seventh alarm flag corresponding to the seventh detection result can be set to W7.

[0197] In this embodiment, for cases where the change in fan air volume is small between adjacent collection cycles, the air volume difference over a preset time interval and the air volume change rate corresponding to multiple collection cycles are statistically analyzed to achieve accurate detection of progressive anomalies such as dust accumulation in the fan.

[0198] In this embodiment, considering that when the target device is an air conditioner and the fan is the outdoor fan of the air conditioner, in addition to dust accumulation, the air volume of the outdoor fan may also gradually decrease due to frost formation. Therefore, when the target device is an air conditioner and the fan is the outdoor fan of the air conditioner, the step of determining the detection result of the fan based on the target air volume change rate and the air volume change rate corresponding to multiple collection periods may specifically include the following sub-steps: when the target air volume change rate is less than the eleventh threshold and the air volume change rate corresponding to multiple collection periods is greater than the twelfth threshold, the operating mode of the air conditioner is obtained; when the operating mode is the cooling mode, the detection result is determined as the seventh detection result; when the operating mode is the heating mode, the detection result is determined as the eighth detection result.

[0199] In this embodiment, the eighth detection result indicates frost formation on the external fan. When the detection result is the eighth detection result, the target device can control the fan to continue operating and output a fourth prompt message; this fourth prompt message is used to instruct the fan to be defrosted. Simultaneously, the target device can also output an eighth alarm flag to indicate the eighth detection result; for example, the eighth alarm flag corresponding to the eighth detection result can be set to W8.

[0200] In this embodiment, considering the unique outdoor operating environment characteristics of the air conditioner's outdoor fan, by combining the target air volume change rate and the air volume change rate with the air conditioner's operating mode, it is possible to accurately identify two abnormal conditions: dust accumulation and frost formation on the outdoor fan.

[0201] In one feasible implementation, the equipment testing method may further include steps S501 to S503, as follows:

[0202] S501: In response to a test command, acquire the test speed, test power, and test air volume of the fan.

[0203] In this embodiment, the test command is a test command issued by the user when the target device is installed or when the target device leaves the factory.

[0204] In this embodiment, testers can perform performance tests on the target device when it leaves the factory to determine whether the target device meets the factory quality requirements; at the same time, testers can perform performance tests on the target device during installation to determine whether the target device meets the quality requirements or installation conditions.

[0205] In this embodiment, the target device is equipped with a test interface or physical buttons. Testers can trigger test commands by clicking the test buttons provided on the test interface, pressing the physical buttons, or by voice, so that the target device responds to the test commands and obtains the test speed, test power, and test air volume of the fan.

[0206] S502: Determine the standard power and standard air volume based on the test rotation speed and the third mapping relationship.

[0207] In this embodiment, the third mapping relationship characterizes the correspondence between the rotational speed, power, and air volume of the target device under test conditions.

[0208] In this embodiment, after the target equipment is equipped, the fan is tested under test conditions. After the fan speed stabilizes, the power and air volume of the fan at different speeds are recorded, and the recorded data is input into the target equipment so that the target equipment can construct a third mapping relationship based on the input recorded data.

[0209] In this embodiment, when the target device is under test, the tester can also trigger a data acquisition command through the target device's data acquisition interface or a preset data acquisition button, so that the target device responds to the data acquisition command and automatically collects the power and air volume of the fan at different speeds after the fan speed is determined to be stable, and then constructs a third mapping relationship based on the collected data.

[0210] In this embodiment, the target device can store the third mapping relationship through a third mapping relationship table. After the test speed of the fan is collected, the standard power and standard air volume can be determined by looking up the third mapping relationship table.

[0211] For example, referring to Table 3, one example of a third mapping table is shown.

[0212] Refer to Table 3, the third mapping relationship table.

[0213] rotational speed power air volume Timestamp 1000rpm 600W 1000CFS 1000 900rpm 500W 800CFS 1000 800rpm 350W 600CFS 1000 700rpm 200W 400CFS 1000

[0214] It should be noted that the timestamp 1000 is a system-preset second parameter identification code, used to characterize that the parameter corresponding to this second parameter identification code is the operating parameter of the target device under test conditions. Here, 1000 is only one example of the second parameter identification code; it can also be set to other values. For example, if the earliest sale date of the target device is 2025-06-01, and the timestamp of that date is 1748707200, then the second parameter identification code can be any data between 0 and 1748707200.

[0215] In this embodiment, the first mapping table and the third mapping table can also be written into the same parameter storage table. This parameter storage table is used to store the fan speed, power, and air volume at various stages. The parameter storage table can be stored in a database, such as MySQL / SQL Server / Oracle, with the database stored in a memory module. Alternatively, it can be a two-dimensional array stored in a memory module, which can be a hard drive, flash memory, RAM, memory chip, etc.

[0216] For example, referring to Table 4, one example of a parameter storage table is shown.

[0217] Refer to Table 4 for parameter storage table

[0218]

[0219]

[0220] The first four rows of the parameter storage table represent the third mapping table, the fifth to eighth rows of the parameter storage table represent the first mapping table, and the data in the ninth row represents the fourth mapping table, which shows the correspondence between the rotation speed, power, and air volume of the target device during the user's use after installation.

[0221] It should be noted that, unlike timestamps 1001 and 1000 which represent the first and second parameter identification codes respectively, 1748662080 represents the timestamp corresponding to the actual time. This means that during wind turbine operation, the actual speed, power, and airflow of the wind turbine can be continuously collected according to a preset collection cycle, and the timestamps, actual speed, power, and airflow are written into the parameter storage table, thereby achieving a comprehensive record of the wind turbine's actual operating parameters.

[0222] In this embodiment, the target device can determine the standard power and standard air volume corresponding to the test rotation speed according to the third mapping relationship, thereby providing a data comparison basis for the test power and test air volume.

[0223] S503: Determine the test results of the fan based on the power ratio between the test power and the standard power, and the air volume ratio between the test air volume and the standard air volume.

[0224] In this embodiment, by calculating the power ratio between the test power and the standard power, and the air volume ratio between the test air volume and the standard air volume, it is possible to effectively verify whether the power and air volume of the fan are abnormal.

[0225] It should be noted that standard power and standard air volume represent standard parameters under ideal conditions. Under normal circumstances, the test power and standard power should be the same or similar before the target equipment is put into formal use. Similarly, the test air volume and standard air volume should also be the same or similar. When the power ratio and air volume ratio differ significantly from the standard ratio of 1, it indicates that the performance of the fan has changed considerably.

[0226] In specific implementation, when the test command is the test command issued by the user when the target equipment leaves the factory, if the power ratio is less than the first ratio threshold and the air volume ratio is greater than or equal to the second ratio threshold, the test result of the fan is determined to be the tenth test result, which is used to indicate that the target equipment meets the factory quality conditions; if the power ratio is greater than or equal to the first ratio threshold or the air volume ratio is less than the second ratio threshold, the test result of the fan is determined to be the eleventh test result, which is used to indicate that the target equipment does not meet the factory quality conditions.

[0227] For example, the first ratio threshold can be set to 105%, and the second ratio threshold can be set to 95%. When the power ratio is <105% and the air volume ratio is ≥95%, it indicates that the fan motor is normal and can be shipped to the customer, thus outputting the tenth test result; when the power ratio is ≥105% or the air volume ratio is <95%, it indicates that the motor has a quality problem and needs to be returned to the factory for repair, thus outputting the eleventh test result.

[0228] In specific implementation, when the test command is a test command issued by the user during the installation of the target device, if the power ratio is greater than the third ratio threshold and the air volume ratio is less than or equal to the fourth ratio threshold, then the test result of the fan is determined to be the twelfth test result. The twelfth test result is used to indicate that the target device does not meet the installation conditions or is blocked. If the power ratio is less than or equal to the third ratio threshold or the air volume ratio is greater than the fourth ratio threshold, then the test result of the fan is determined to be the thirteenth test result. The thirteenth test result is used to indicate that the target device meets the installation conditions and is not blocked.

[0229] For example, the third ratio threshold can be set to 120%, and the fourth ratio threshold can be set to 80%. When the power ratio is >120% and the air volume ratio is ≤80%, it indicates that the fan is installed in a semi-enclosed space, which does not meet the machine installation conditions, or is blocked by foreign objects, and thus the twelfth test result is output; when the power ratio is ≤105% or the air volume ratio is >80%, it indicates that the motor meets the machine installation conditions and there are no blockages, and thus the thirteenth test result is output.

[0230] In this embodiment, after the target device outputs the twelfth test result, the tester can further inspect the installation environment to find a more suitable installation location for the fan. If an ideal installation location does not exist, the fan speed or power of the target device can be limited with the authorization of the purchasing user; alternatively, if the purchasing user does not agree to reduced speed operation, a waiver can be signed and the fan can be operated at full power as required by the customer to avoid unnecessary after-sales disputes.

[0231] In this embodiment, by constructing a third mapping relationship, the corresponding standard power and standard air volume can be matched according to the test speed during the factory testing or equipment installation stage. Then, by calculating the power ratio between the test power and the standard power, and the air volume ratio between the test air volume and the standard air volume, a dual verification mechanism is established to achieve accurate detection of fan performance. This not only enables timely detection of fan quality problems, but also accurately identifies whether the installation environment of the target equipment is suitable, thereby ensuring that the performance of the target equipment meets the standards and effectively guaranteeing the user experience.

[0232] To facilitate better implementation of the equipment testing method of this application, this application also provides an equipment testing apparatus based on the above-described equipment testing method. The meanings of the terms used are the same as in the above-described equipment testing method, and specific implementation details can be found in the descriptions of the method embodiments.

[0233] Based on the same inventive concept, and referring to Figure 2 This application provides a device testing apparatus, which includes:

[0234] The data acquisition module 201 is used to acquire the power change rate and air volume change rate of the fan of the target device;

[0235] The fan detection module 202 is used to determine the detection results of the fan based on the power change rate and the air volume change rate.

[0236] In one embodiment, the power change rate and air volume change rate of the fan are determined in the following manner:

[0237] The actual power and actual air volume of the fan are collected according to the preset collection cycle.

[0238] Given that the current data collection period is the first data collection period, the power change rate and air volume change rate are determined based on the actual power, actual air volume, and actual fan speed of the current data collection period.

[0239] If the current acquisition cycle is not the first acquisition cycle, the power change rate is determined based on the actual power of the current acquisition cycle and the actual power of the previous acquisition cycle, and the air volume change rate is determined based on the actual air volume of the current acquisition cycle and the actual air volume of the previous acquisition cycle.

[0240] In one embodiment, the power change rate and air volume change rate are determined based on the actual power, actual air volume, and actual fan speed during the current data collection period, including:

[0241] Based on the actual rotational speed of the fan and the first mapping relationship, the reference power and reference air volume are determined; the first mapping relationship characterizes the correspondence between the rotational speed, power and air volume of the target equipment when it is used for the first time after installation.

[0242] The power change rate is determined based on the reference power and the actual power in the current acquisition cycle;

[0243] The rate of change of air volume is determined based on the reference air volume and the actual air volume in the current data collection period.

[0244] In one embodiment, the fan detection module 202 includes:

[0245] The first detection submodule is used to determine the detection result as the first detection result when the air volume change rate is greater than the first threshold and less than or equal to the second threshold, and the power change rate is greater than the third threshold; the first detection result indicates that the fan has a first-level blockage;

[0246] The second detection submodule is used to determine the detection result as the second detection result when the air volume change rate is greater than the first threshold and less than or equal to the second threshold, and the power change rate is less than the fourth threshold; the second detection result indicates that the fan blades have suffered first-level damage.

[0247] The third detection submodule is used to determine the detection result as the third detection result when the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the sixth threshold and less than the seventh threshold; the third detection result indicates that the fan has a second level of blockage.

[0248] The fourth detection submodule is used to determine the detection result as the fourth detection result when the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the eighth threshold and less than the ninth threshold; the fourth detection result indicates that the fan blade is broken or the fan blade has suffered second-level damage.

[0249] The fifth detection submodule is used to determine the detection result as the fifth detection result when the air volume change rate is less than the fifth threshold and the power change rate is greater than the tenth threshold; the fifth detection result indicates that the fan has a third-level blockage.

[0250] The sixth detection submodule is used to determine the detection result as the sixth detection result when the air volume change rate is less than the fifth threshold and the power change rate is less than or equal to the tenth threshold; the sixth detection result indicates that the wind turbine blade has suffered third-level damage.

[0251] In one embodiment, the device detection apparatus further includes:

[0252] The first processing module is used to control the fan to continue running and output a first prompt message when the detection result is the first detection result; the first prompt message is used to instruct the clearing of the obstruction.

[0253] The second processing module is used to control the fan to continue running and output a second prompt message when the detection result is the second detection result or the fourth detection result; the second prompt message is used to indicate that the fan needs to be maintained.

[0254] The third processing module is used to control the fan to reduce its speed and output the first prompt message when the detection result is the third detection result;

[0255] The fourth processing module is used to control the fan to stop running and output the first prompt message when the detection result is the fifth detection result;

[0256] The fifth processing module is used to control the fan to stop running and output a second prompt message when the detection result is the sixth detection result.

[0257] In one embodiment, the device detection apparatus further includes:

[0258] The air volume information acquisition module is used to acquire the actual rotation speed of the fan at preset intervals, and determine the air volume change rate corresponding to multiple acquisition cycles based on the actual air volume of the fan in multiple acquisition cycles within the preset time period.

[0259] The reference air volume determination module is used to determine the reference air volume based on the actual speed of the fan and the second mapping relationship, and to determine the target air volume change rate between the actual air volume of the fan and the reference air volume; the second mapping relationship characterizes the correspondence between the speed and air volume when the target equipment is used for the first time after installation.

[0260] The first result determination module is used to determine the detection result of the fan based on the target air volume change rate and the air volume change rate corresponding to multiple acquisition cycles.

[0261] In one embodiment, the target device is an air conditioner, and the fan is the outdoor fan of the air conditioner; the first result determination module includes:

[0262] The mode acquisition submodule is used to acquire the air conditioner's operating mode when the target air volume change rate is less than the eleventh threshold and the air volume change rate corresponding to multiple acquisition cycles is greater than the twelfth threshold.

[0263] The dust accumulation detection submodule is used to determine the detection result as the seventh detection result when the operating mode is cooling mode; the seventh detection result represents the dust accumulation in the outdoor fan.

[0264] The frost detection submodule is used to determine the detection result as the eighth detection result when the operating mode is heating mode; the eighth detection result indicates frost on the outdoor fan.

[0265] In one embodiment, the device detection apparatus further includes:

[0266] The test parameter acquisition module is used to acquire the test speed, test power, and test air volume of the fan in response to test commands; the test commands are the test commands issued by the user when the target equipment is installed or when the target equipment leaves the factory;

[0267] The standard parameter determination module is used to determine the standard power and standard air volume based on the test rotation speed and the third mapping relationship; the third mapping relationship characterizes the correspondence between the rotation speed, power and air volume of the target equipment under test conditions.

[0268] The second result determination module is used to determine the test result of the fan based on the power ratio between the test power and the standard power, and the air volume ratio between the test air volume and the standard air volume.

[0269] By adopting the technical solution of this application embodiment, and by comprehensively considering the power change rate and air volume change rate, it is possible to effectively identify various fault types that cannot be distinguished by traditional methods, such as gradual blockage, sudden foreign object blockage, blade breakage, and blade deformation. It can realize timely and comprehensive detection of various abnormal conditions of the fan under complex operating conditions, thereby significantly improving the comprehensiveness and accuracy of fan detection.

[0270] Specific limitations regarding the equipment testing device can be found in the limitations of the equipment testing method described above, and will not be repeated here. Each module in the aforementioned equipment testing device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0271] In addition, this application also provides an electronic device, such as Figure 3 As shown, it illustrates the structural diagram of the electronic device involved in this application, specifically:

[0272] The electronic device may include components such as a processor 301 with one or more processing cores and a memory 302 with one or more computer-readable storage media. Those skilled in the art will understand that... Figure 3 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein:

[0273] The processor 301 is the control center of the electronic device. It connects various parts of the electronic device via various interfaces and lines, and performs various functions and processes data by running or executing software programs and / or modules stored in the memory 302, and by calling data stored in the memory 302, thereby providing overall monitoring of the electronic device. Optionally, the processor 301 may include one or more processing cores; preferably, the processor 301 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 301.

[0274] The memory 302 can be used to store software programs and modules. The processor 301 executes various functional applications and data processing by running the software programs and modules stored in the memory 302. The memory 302 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 according to the use of the electronic device, etc. In addition, the memory 302 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 302 may also include a memory controller to provide the processor 301 with access to the memory 302.

[0275] In one feasible implementation, the electronic device further includes a power supply 303 that supplies power to the various components. Preferably, the power supply 303 can be logically connected to the processor 301 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 303 may also include one or more DC or AC power supplies, recharging systems, power equipment debugging circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0276] In one feasible implementation, the electronic device may further include an input unit 304, 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.

[0277] Although not shown, the electronic device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 301 in the electronic device loads the executable files corresponding to the processes of one or more applications into the memory 302 according to the following instructions, and the processor 301 runs the applications stored in the memory 302, thereby implementing the steps in any of the device detection methods provided in the embodiments of this application.

[0278] Those skilled in the art will understand that Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the electronic device to which the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0279] In one feasible implementation, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the methods described in any embodiment of this application.

[0280] In one feasible implementation, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the methods described in any embodiment of this application.

[0281] In one feasible implementation, a computer program product is also proposed, comprising a computer program or instructions that, when executed by a processor, implement the methods described in any embodiment of this application.

[0282] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0283] 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.

[0284] Therefore, this application provides a computer-readable storage medium storing a computer program that can be loaded by a processor to execute the steps in any of the device detection methods provided in this application.

[0285] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0286] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0287] Since the instructions stored in the computer-readable storage medium can execute the steps in any of the device testing methods provided in this application, the beneficial effects that any of the device testing methods provided in this application can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0288] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0289] The above provides a detailed description of a device testing method, apparatus, electronic device, and computer-readable storage medium provided in this application. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, those skilled in the art will recognize that there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for testing equipment, characterized in that, The method includes: Obtain the power change rate and air volume change rate of the target device's fan; The detection result of the fan is determined based on the power change rate and the air volume change rate.

2. The equipment testing method according to claim 1, characterized in that, The power change rate and air volume change rate of the fan are determined in the following way: The actual power and actual air volume of the fan are collected according to the preset collection cycle. When the current acquisition period is the first acquisition period, the power change rate and the air volume change rate are determined based on the actual power, actual air volume and actual fan speed of the current acquisition period; If the current acquisition cycle is not the first acquisition cycle, the power change rate is determined based on the actual power of the current acquisition cycle and the actual power of the previous acquisition cycle, and the air volume change rate is determined based on the actual air volume of the current acquisition cycle and the actual air volume of the previous acquisition cycle.

3. The equipment testing method according to claim 2, characterized in that, The determination of the power change rate and the air volume change rate based on the actual power, actual air volume, and actual fan speed in the current data collection period includes: Based on the actual rotational speed of the fan and the first mapping relationship, the reference power and reference air volume are determined; the first mapping relationship characterizes the correspondence between the rotational speed, power and air volume of the target equipment when it is used for the first time after installation. The power change rate is determined based on the reference power and the actual power in the current acquisition cycle; The air volume change rate is determined based on the reference air volume and the actual air volume in the current acquisition cycle.

4. The equipment testing method according to claim 1, characterized in that, The determination of the fan's detection result based on the power change rate and the air volume change rate includes: If the air volume change rate is greater than a first threshold and less than or equal to a second threshold, and the power change rate is greater than a third threshold, the detection result is determined to be the first detection result; the first detection result indicates that the fan has experienced a first-level blockage. If the rate of change of air volume is greater than a first threshold and less than or equal to a second threshold, and the rate of change of power is less than a fourth threshold, the detection result is determined to be the second detection result; the second detection result indicates that the fan blades have suffered first-level damage. If the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the sixth threshold and less than the seventh threshold, the detection result is determined to be the third detection result; the third detection result indicates that the fan has experienced a second level of blockage. If the air volume change rate is greater than or equal to the fifth threshold and less than the first threshold, and the power change rate is greater than the eighth threshold and less than the ninth threshold, the detection result is determined to be the fourth detection result; the fourth detection result indicates that the fan blade is broken or the fan blade has suffered second-level damage. If the rate of change of air volume is less than the fifth threshold and the rate of change of power is greater than the tenth threshold, the detection result is determined to be the fifth detection result; the fifth detection result indicates that the fan has experienced a third-level blockage. If the rate of change of air volume is less than the fifth threshold and the rate of change of power is less than or equal to the tenth threshold, the detection result is determined to be the sixth detection result; the sixth detection result indicates that the wind turbine blade has suffered third-level damage.

5. The equipment testing method according to claim 4, characterized in that, The method further includes: If the detection result is the first detection result, the fan is controlled to continue running, and a first prompt message is output; the first prompt message is used to instruct the clearing of obstructions; If the detection result is the second detection result or the fourth detection result, the fan is kept running, and a second prompt message is output; the second prompt message is used to instruct the fan to be maintained. If the detection result is the third detection result, control the fan to reduce its speed and output the first prompt message; If the detection result is the fifth detection result, control the fan to stop running and output the first prompt message; If the detection result is the sixth detection result, control the fan to stop running and output the second prompt message.

6. The equipment testing method according to claim 1, characterized in that, The method further includes: At preset time intervals, the actual rotational speed of the fan is acquired, and based on the actual air volume of the fan in multiple acquisition cycles within the preset time interval, the air volume change rate corresponding to multiple acquisition cycles is determined. Based on the actual rotational speed of the fan and the second mapping relationship, a reference air volume is determined, and a target air volume change rate between the actual air volume of the fan and the reference air volume is determined; the second mapping relationship characterizes the correspondence between the rotational speed and air volume when the target equipment is used for the first time after installation. The detection result of the fan is determined based on the target air volume change rate and the air volume change rate corresponding to multiple acquisition cycles.

7. The equipment testing method according to claim 6, characterized in that, The target device is an air conditioner, and the fan is the outdoor fan of the air conditioner; The determination of the fan's detection result based on the target airflow change rate and the airflow change rate corresponding to multiple acquisition cycles includes: The operating mode of the air conditioner is obtained when the target air volume change rate is less than the eleventh threshold and the air volume change rate corresponding to multiple collection cycles is greater than the twelfth threshold. When the operating mode is cooling mode, the detection result is determined to be the seventh detection result; the seventh detection result represents the dust accumulation in the outdoor fan. When the operating mode is heating mode, the detection result is determined to be the eighth detection result; the eighth detection result indicates that the external fan is frosted.

8. The equipment testing method according to claim 1, characterized in that, The method further includes: In response to a test command, the test speed, test power, and test air volume of the fan are acquired; the test command is a test command issued by the user when the target equipment is installed or when the target equipment leaves the factory. Based on the test rotation speed and the third mapping relationship, the standard power and standard air volume are determined; the third mapping relationship characterizes the correspondence between the rotation speed, power and air volume of the target equipment under test conditions. The test result of the fan is determined based on the power ratio between the test power and the standard power, and the air volume ratio between the test air volume and the standard air volume.

9. A device for testing equipment, characterized in that, The device includes: The data acquisition module is used to acquire the power change rate and air volume change rate of the fan in the target device; The fan detection module is used to determine the detection result of the fan based on the power change rate and the air volume change rate.

10. An electronic device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the device detection method as described in any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the device detection method as described in any one of claims 1 to 8.

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