Motor detection overturning clamp and control method thereof

Abstract

The embodiment of the invention relates to the technical field of detection equipment, in particular to a motor detection overturning clamp and a control method thereof. The motor detection overturning clamp comprises a hanging bracket, a clamping arm and a clamping driving device, the hanging bracket is provided with a cross arm and a vertical blocking arm, the clamping arm is installed on the cross arm in a sliding mode, the clamping driving device is installed on the cross arm, the clamping driving device drives the clamping arm to slide along the cross arm, and the vertical blocking arm is installed on the vertical blocking arm. The vertical blocking arm is provided with a rotatable driven rotating disc, the clamping arm is provided with a rotatable driving rotating disc, the clamping arm is provided with a rotating motor used for driving the driving rotating disc, the driving rotating disc and the driven rotating disc are each provided with a pair of clamping blocks arranged in a V shape, and the transverse arm is provided with a control box. A controller is arranged in the control box, and the clamping driving device and the rotating motor are both connected with the controller.

Description

Technical Field

[0001] Multiple embodiments of this specification relate to the technical field of detection equipment, and specifically to a motor detection flip fixture and a control method thereof. Background Art

[0002] During the motor manufacturing and testing process, motor testing and flipping operations are key steps that directly affect the quality and performance of the final product. Traditional motor testing equipment often lacks flexibility and precision, especially in terms of clamping and rotation control. For example, some traditional fixtures cannot adapt well to motors of different sizes and shapes, resulting in low assembly efficiency. In addition, during the motor flip test, due to the lack of effective sensors and control systems, it is difficult to accurately measure the operating status of the motor at various angles, which limits the accuracy of fault diagnosis. To this end, it is necessary to provide a fixture device that assists in the more efficient execution of motor assembly and testing. Summary of the Invention

[0003] Multiple embodiments of this specification describe a motor detection flipping fixture and a control method thereof.

[0004] In a first aspect, an embodiment of this specification provides a motor detection flip fixture, comprising:

[0005] The hanger has a cross arm and a vertical arm, the clamping arm is slidably mounted on the cross arm, the clamping drive is mounted on the cross arm, and the clamping drive drives the clamping arm to slide along the cross arm.

[0006] The vertical blocking arm is equipped with a rotatable passive rotating disk, the clamping arm is equipped with a rotatable active rotating disk, the clamping arm is equipped with a rotating motor for driving the active rotating disk, and the active rotating disk and the passive rotating disk are both provided with a pair of clamping blocks arranged in a V shape.

[0007] A control box is installed on the cross arm, and a controller is arranged in the control box. The clamping drive device and the rotating motor are both connected to the controller.

[0008] In the second aspect, the embodiment of this specification provides a control method for the motor detection flip fixture as described above, wherein the rotational angular displacement, rotational speed, and rotational direction of the active rotating disk are all controllable, the clamping force of the clamping block is measurable, the motor to be detected is placed on the workpiece table, the vertical blocking arm can be fixed, and the controller establishes a communication connection with the host computer.

[0009] The control method is executed by the controller, and the control method includes the following steps:

[0010] When the vertical blocking arm and the clamping arm are located on both sides of the motor to be tested, a position signal sent by the host computer is received, and then the clamping drive device is controlled to make the clamping arm clamp the motor to be tested until the clamping force of the clamping block reaches a preset value;

[0011] When the hanger is hoisted to the inspection station, the hanger receives a rotation angle control signal sent by the host computer, and controls the rotating motor to rotate at a preset rotation speed and direction to an angle corresponding to the rotation angle control signal according to the rotation angle control signal;

[0012] When the detection is completed, a release signal sent by the host computer is received, and then the clamping drive device is controlled to make the clamping arm release the motor to be detected.

[0013] In a third aspect, embodiments of this specification provide an electronic device, including a processor and a memory;

[0014] The processor is connected to the memory;

[0015] The memory is used to store executable program code;

[0016] The processor reads the executable program code stored in the memory to run a program corresponding to the executable program code, so as to execute the method described in any one of the above aspects.

[0017] In a fourth aspect, an embodiment of this specification provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the method described in any one of the above aspects is implemented.

[0018] The beneficial effects of the technical solutions provided by some embodiments of this specification include at least:

[0019] In multiple embodiments of the present specification, the entire detection process of the motor detection flip fixture provided, from clamping, rotation to release, is automatically executed by the controller, reducing the need for manual intervention, not only improving work efficiency, but also reducing the possibility of human error. By adopting movable clamping blocks, it can adapt to motor housings of different diameters. Through in-depth analysis of vibration data, including time domain curve similarity evaluation and frequency domain feature comparison, the system can detect subtle anomalies in motor assembly. After uploading the vibration data analysis results to the host computer, managers can monitor the quality status of motors on the production line in real time and use big data analysis tools to further explore potential quality improvement points.

[0020] Other features and advantages of the various embodiments of this specification will be further disclosed in the following detailed description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of this specification, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 Schematic diagram of the motor detection flip fixture provided in the embodiments of this specification.

[0023] Figure 2 This is a schematic diagram of the motor detection flipping fixture provided in the embodiments of this specification.

[0024] Figure 3 This is a front view of the motor detection flipping fixture provided in the embodiment of this specification.

[0025] Figure 4 This is a flow chart of the motor detection flip fixture control method provided in the embodiments of this specification.

[0026] Figure 5 This is a schematic diagram of vibration detection of a motor detection flip fixture provided in an embodiment of this specification.

[0027] Figure 6 A schematic diagram of the reference frequency composition provided in the embodiments of this specification.

[0028] Figure 7 This is a schematic diagram of an electronic device provided in an embodiment of this specification.

[0029] Among them: 11. Lifting ear, 12. Hanger, 13. Control box, 14. Armrest, 15. Clamping arm, 21. Clamping drive device, 31. Passive rotating disk, 32. Clamping block, 33. Rotating motor, 34. Active rotating disk, 41. Housing, 42. Workpiece table, 50. Reference frequency composition, 51. Frequency composition, 1100. Electronic device, 1101. Processor, 1102. Communication bus, 1103. User interface, 1104. Network interface, 1105. Memory. DETAILED DESCRIPTION

[0030] The following is an explanation and description of the technical solutions of the embodiments of this specification in conjunction with the drawings of the embodiments of this specification. However, the following embodiments are only preferred embodiments of this specification and are not exhaustive. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without making any creative work are all within the scope of protection of this specification.

[0031] Throughout this specification, the claims, and the accompanying drawings, the terms "first," "second," "third," and the like are used to distinguish between different items, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may include other steps or elements inherent to the process, method, product, or apparatus.

[0032] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations on this specification.

[0033] The data involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data comply with the relevant laws, regulations and standards of relevant countries and regions.

[0034] Before introducing the technical solution in this specification, the application scenarios and related technologies of the technical solution are introduced.

[0035] In the manufacturing of new energy vehicles, motor quality is directly related to manufacturing efficiency, overall performance, energy efficiency, and safety. This places higher demands on motor testing during the manufacturing process. Traditional motor testing equipment and technologies often struggle to meet these growing demands, particularly in terms of accuracy, automation, and adaptability. For example, traditional fixtures may not be able to effectively handle the testing needs of motors of varying models and specifications, resulting in low assembly efficiency. Furthermore, during motor rollover testing, the lack of high-precision sensors and intelligent control systems makes it difficult to fully and accurately assess the motor's operating status.

[0036] To this end, this specification provides a motor-detected flipping fixture and its control method, which can complete automated clamping, flipping, and releasing operations. Throughout the entire process, the fixture can adjust the rotation angle, speed, and direction according to preset parameters and monitor the clamping force in real time.

[0037] This manual first provides a motor detection flip fixture, see the attached Figure 1 and attached Figure 2The motor detection flipping fixture includes a hanger 12, a clamping arm 15, and a clamping drive device 21. The hanger 12 has a horizontal arm and a vertical arm. The clamping arm 15 is slidably mounted on the horizontal arm. The clamping drive device 21 is mounted on the horizontal arm. The clamping drive device 21 drives the clamping arm 15 to slide along the horizontal arm. The vertical arm is equipped with a rotatable passive rotating disk 31. The clamping arm 15 is equipped with a rotatable active rotating disk 34. The clamping arm 15 is equipped with a rotating motor 33 for driving the active rotating disk 34. The active rotating disk 34 and the passive rotating disk 31 are both provided with a pair of clamping blocks 32 arranged in a V shape. A control box 13 is installed on the horizontal arm. A controller is provided in the control box 13. The clamping drive device 21 and the rotating motor 33 are both connected to the controller. A lifting eye 11 and a handrail 14 are provided on the horizontal arm. The lifting eye 11 is used to be hoisted and transported by other equipment. During the transfer process, if manual intervention is required, the handrail 14 can facilitate manual operation.

[0038] The clamping block 32 is equipped with a pressure sensor, and the active rotating disk 34 is provided with an angular displacement sensor. Both the pressure sensor and the angular displacement sensor are connected to the controller. The pressure sensor detects the clamping force. The clamping drive device 21 can adopt a bidirectional cylinder or a servo linear motor. Or it can be implemented by using a servo motor in conjunction with a ball screw mechanism. It is recommended to use a dovetail groove structure to connect the clamping arm 15 and the cross arm, which can ensure sufficient connection strength, high precision and easy lubrication. The controller does not need to obtain the precise position of the current clamping arm 15, but needs to obtain the position of the end point of the clamping arm 15. The detection can be achieved by setting a photoelectric gate or a micro switch at the end point of the clamping arm 15.

[0039] Please see the attached Figure 3 The clamping block 32 is rotatably mounted on the active rotating disk 34 and the passive rotating disk 31. The working surface of the clamping block 32 is covered with an anti-slip layer. An angular displacement sensor detects the angular displacement of the active rotating disk 34. As a recommended embodiment, the angular displacement sensor is an absolute angular displacement sensor, which can immediately obtain angular displacement after power failure and restart, without the need to start counting from zero or perform additional calibration steps.

[0040] A method for using the motor detection flip fixture provided in this embodiment includes:

[0041] Place the motor to be tested on the workpiece table 42, lift the motor testing flip fixture above the motor to be tested, and control the motor testing flip fixture to descend so that the clamping block 32 is approximately located in the middle of the motor housing 41 to be tested, with the motor shaft of the motor to be tested positioned vertically. Ensure that the clamping block 32 on the vertical stop arm contacts the motor housing 41. Then, control the clamping drive 21 to bring the clamping arm 15 closer to the vertical stop arm, ultimately ensuring that the clamping block 32 clamps the motor to be tested. Use the hoist to lift the motor testing flip fixture and lift the motor to be tested.

[0042] The host computer communicates with the controller via a preset program or instructions received from an interactive device. The controller then controls the rotation of the rotary motor 33, rotating the motor to be inspected to different angles. This facilitates manual inspection and observation of the motor's assembly condition at each angle, thus enabling assembly quality testing of the motor.

[0043] On the other hand, this specification provides a control method for the motor detection flipping fixture as mentioned above, wherein the rotational angular displacement, rotational speed, and rotational direction of the active rotating disk 34 are all controllable, the clamping force of the clamping block 32 is measurable, the motor to be detected is placed on the workpiece table 42, the vertical blocking arm can be fixed, and the controller establishes a communication connection with the host computer.

[0044] The control method is executed by the controller, see the attached Figure 4 , the control method comprises the following steps:

[0045] Step S1) When the vertical blocking arm and clamping arm 15 are positioned on either side of the motor to be inspected, they receive a position signal from the host computer and then control the clamping drive 21 to cause the clamping arm 15 to clamp the motor to be inspected until the clamping force of the clamping block 32 reaches a preset value. By continuously reading the clamping force of the clamping block 32 and determining whether it has reached the preset value, the clamping drive 21 can be triggered to stop in a timely manner.

[0046] Step S2) When the hanger 12 is hoisted to the inspection station, it receives a rotation angle control signal from the host computer. Based on the rotation angle control signal, the rotary motor 33 is controlled to rotate at a preset speed and direction to the angle corresponding to the rotation angle control signal. By rotating to different angles, multiple angles of inspection are achieved, ensuring the quality of motor assembly.

[0047] Step S3) When the detection is completed, a release signal sent by the host computer is received, and then the clamping drive device 21 is controlled to make the clamping arm 15 release the motor to be detected.

[0048] On the other hand, in another embodiment, a vibration sensor is installed on the cross arm, and the vibration sensor is connected to the controller.

[0049] The control method further comprises the steps of:

[0050] When the vertical blocking arm is fixed, it receives the detection instruction sent by the host computer, and then controls the rotary motor 33 to drive the motor to be detected to rotate until the motor shaft is in a horizontal position;

[0051] Controlling the rotating motor 33 to drive the motor to be detected to swing back and forth at a set rotation speed within a predetermined angular displacement range for a predetermined period of time, and collecting detection data from the vibration sensor during the process, which is recorded as vibration data;

[0052] The rotating motor 33 is controlled to drive the motor to be detected to rotate until the motor shaft is vertical, and the vibration data is uploaded to the host computer.

[0053] After the vertical arm is fixed, the fixture receives the detection command from the host computer, and the control system starts the rotating motor 33, driving the motor to be detected to rotate until the motor shaft is in a horizontal position. Then, the rotating motor 33 is controlled to swing back and forth within a preset angular displacement range at a set rotation speed for a certain period of time (such as 30 seconds or 1 minute). Figure 5 As shown in the figure, during this process, vibration sensors collect real-time vibration data from the motor and record the data as a vibration dataset. Spectral analysis of the vibration signal can effectively identify potential defects such as bearing wear, rotor imbalance, and assembly eccentricity within the motor.

[0054] Especially when the assembly is not tight or there is looseness, the reciprocating vibration can clearly detect the abnormalities reflected in the vibration spectrum. This can detect assembly defects that are invisible on the surface or difficult to detect through measurement, thus ensuring the quality of the final motor product.

[0055] Wherein, an alarm device is installed on the cross arm, and the control method further comprises the steps of:

[0056] Calculating the similarity between the time domain curve of the vibration data and a pre-stored reference curve, and controlling the alarm device to sound an alarm when the similarity is lower than a preset threshold;

[0057] Extracting frequency domain features of the vibration data to obtain the frequency and amplitude of the frequency component 51;

[0058] Comparing the frequency and amplitude of the frequency component 51 with a preset reference frequency component 50;

[0059] When the difference between the amplitude corresponding to a certain frequency in the frequency component 51 and the amplitude of the same frequency in the reference frequency component 50 is less than a preset percentage, the comparison is determined to be consistent; when the difference between the amplitude corresponding to a certain frequency in the frequency component 51 and the amplitude of the same frequency in the reference frequency component 50 is not less than a preset percentage, the comparison is determined to be inconsistent;

[0060] When there is a mismatch in the comparison, the alarm device is controlled to sound an alarm.

[0061] The reference curve pre-stored in the system represents the curve corresponding to the vibration data collected when the motor, which has been strictly tested and is considered normal, performs the same reciprocating swing. Figure 6 If the similarity between the calculated time domain curve of the vibration data and the pre-stored reference curve is lower than a preset threshold (e.g., 70%), it indicates that the current motor to be inspected may have an assembly defect, triggering the alarm device to sound an alarm, prompting the technician to conduct further inspection.

[0062] A Fast Fourier Transform (FFT) is performed on the vibration data to extract its frequency domain characteristics, namely the frequencies and amplitudes of frequency components 51. If the vibration amplitude at a specific frequency (e.g., 60Hz) in the frequency domain characteristics of the motor being tested is significantly higher than the normal range—that is, if the amplitude difference exceeds a preset percentage (e.g., ±20%)—the motor is considered to have a potential problem, such as bearing wear, rotor imbalance, or loose assembly. This will also trigger the alarm device. This helps to promptly detect defects in the manufacturing process and effectively prevent safety hazards caused by motor failure.

[0063] See also Figure 7 A schematic structural diagram of an electronic device provided in an embodiment of this specification is shown.

[0064] like Figure 7As shown, the electronic device 1100 may include: at least one processor 1101, at least one network interface 1104, a user interface 1103, a memory 1105, and at least one communication bus 1102. The communication bus 1102 may be used to implement communication between the aforementioned components. The user interface 1103 may include buttons, and optionally may also include a standard wired interface or a wireless interface. The network interface 1104 may include, but is not limited to, a Bluetooth module, an NFC module, a Wi-Fi module, etc. The processor 1101 may include one or more processing cores. The processor 1101 utilizes various interfaces and circuits to connect the various components within the electronic device 1100. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 1105, and accessing data stored in the memory 1105, the processor 1101 performs various functions of the routing device and processes data. Optionally, the processor 1101 may be implemented in hardware using at least one of a DSP, an FPGA, and a PLA. The processor 1101 may integrate one or a combination of a CPU, a GPU, and a modem. Among them, the CPU mainly processes the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content that needs to be displayed on the display; and the modem is used to handle wireless communication.

[0065] It is understandable that the above-mentioned modem may not be integrated into the processor 1101, but may be implemented by a separate chip.

[0066] Memory 1105 may include either RAM or ROM. Optionally, memory 1105 may include non-transitory computer-readable media. Memory 1105 may be used to store instructions, programs, codes, code sets, or instruction sets. Memory 1105 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, sound playback function, image playback function, etc.), instructions for implementing the aforementioned method embodiments, etc.; the data storage area may store data related to the aforementioned method embodiments, etc. Memory 1105 may also optionally be at least one storage device located remotely from the aforementioned processor 1101. Memory 1105, as a computer storage medium, may include an operating system, a network communication module, a user interface module, and application programs. Processor 1101 may be configured to invoke the application programs stored in memory 1105 and execute the methods described in the aforementioned embodiments.

[0067] The embodiments of this specification also provide a computer-readable storage medium having instructions stored therein that, when executed on a computer or processor, cause the computer or processor to perform the steps of the aforementioned embodiments. If the components of the aforementioned electronic device are implemented as software functional units and sold or used as independent products, they may be stored in the computer-readable storage medium.

[0068] The embodiments of this specification also provide a computer program product, including a computer program, which implements multiple steps in the above embodiments when executed by a processor.

[0069] In the absence of conflict, the technical features in this embodiment and implementation scheme can be combined arbitrarily.

[0070] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product comprises multiple computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this specification are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted via the computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium accessible by a computer or a data storage device such as a server or data center that integrates multiple available media. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state drive (SSD)).

[0071] When implemented via hardware or firmware, the aforementioned method flow is programmed into the hardware circuit to obtain the corresponding hardware circuit structure and realize the corresponding function. For example, a programmable logic device (PLD) (such as a field programmable gate array (FPGA)) is such an integrated circuit, whose logical function is determined by the user's device programming. Designers can "integrate" a digital system on a PLD through self-programming, eliminating the need for chip manufacturers to design and manufacture dedicated integrated circuit chips. Moreover, today, instead of manually manufacturing integrated circuit chips, this programming is often performed using "logic compiler" software. This is similar to the software compiler used in program development. Before compilation, the original code must also be written in a specific programming language, called a hardware description language (HDL). There are not just one HDL, but many. Those skilled in the art will also understand that simply by programming the method flow in one of the aforementioned hardware description languages and programming it into the integrated circuit, a hardware circuit that implements the logical method flow can be easily obtained.

[0072] The embodiments described above are merely preferred embodiments of this specification and are not intended to limit the scope of this specification. Without departing from the design spirit of this specification, various modifications and improvements made to the technical solutions of this specification by ordinary technicians in this field should fall within the scope of protection determined by the claims of this specification.

Claims

1. A motor detection flip fixture, characterized in that: include: The hanger has a cross arm and a vertical arm, the clamping arm is slidably mounted on the cross arm, the clamping drive is mounted on the cross arm, and the clamping drive drives the clamping arm to slide along the cross arm. The vertical blocking arm is equipped with a rotatable passive rotating disk, the clamping arm is equipped with a rotatable active rotating disk, the clamping arm is equipped with a rotating motor for driving the active rotating disk, and the active rotating disk and the passive rotating disk are both provided with a pair of clamping blocks arranged in a V shape. A control box is installed on the cross arm, and a controller is arranged in the control box. The clamping drive device and the rotating motor are both connected to the controller.

2. The motor detection flip fixture according to claim 1, characterized in that: The clamping block is equipped with a built-in pressure sensor, and the active rotating disk is provided with an angular displacement sensor.

3. A motor detection flip fixture according to claim 1 or 2, characterized in that: The clamping block is rotatably mounted on the active rotating disk and the passive rotating disk.

4. The motor detection flip fixture according to claim 3, characterized in that: The working surface of the clamping block is covered with an anti-slip layer.

5. A motor detection flip fixture according to claim 1 or 2, characterized in that: The horizontal arm is provided with a lifting lug and an armrest.

6. A control method for a motor detection flipping fixture according to any one of claims 1 to 5, characterized in that: The rotational angular displacement, rotational speed and rotational direction of the active rotating disk are all controllable, the clamping force of the clamping block is measurable, the motor to be tested is placed on the workpiece table, the vertical blocking arm can be fixed, and the controller establishes a communication connection with the host computer. The control method is executed by the controller, and the control method includes the following steps: When the vertical blocking arm and the clamping arm are located on both sides of the motor to be tested, a position signal sent by the host computer is received, and then the clamping drive device is controlled to make the clamping arm clamp the motor to be tested until the clamping force of the clamping block reaches a preset value; When the hanger is hoisted to the inspection station, the hanger receives a rotation angle control signal sent by the host computer, and controls the rotating motor to rotate at a preset rotation speed and direction to an angle corresponding to the rotation angle control signal according to the rotation angle control signal; When the detection is completed, a release signal sent by the host computer is received, and then the clamping drive device is controlled to make the clamping arm release the motor to be detected.

7. The control method according to claim 6, characterized in that: A vibration sensor is installed on the cross arm, and the vibration sensor is connected to the controller. The control method further comprises the steps of: When the vertical blocking arm is fixed, it receives the detection instruction sent by the host computer, and then controls the rotary motor to drive the motor to be detected to rotate until the motor shaft is in a horizontal position; Controlling the rotating motor to drive the motor to be detected to swing back and forth at a set rotation speed within a predetermined angular displacement range for a predetermined period of time, and collecting detection data from the vibration sensor during the process, which is recorded as vibration data; The rotating motor is controlled to drive the motor to be detected to rotate until the motor shaft is vertical, and the vibration data is uploaded to the host computer.

8. The control method according to claim 7, characterized in that: An alarm device is installed on the cross arm, and the control method further comprises the steps of: Calculating the similarity between the time domain curve of the vibration data and a pre-stored reference curve, and controlling the alarm device to sound an alarm when the similarity is lower than a preset threshold; Extracting the frequency domain components of the vibration data to obtain the frequency and amplitude of the frequency components; comparing the frequency and amplitude of the frequency component with a preset reference frequency component; When the difference between the amplitude corresponding to a certain frequency in the frequency composition and the amplitude of the same frequency in the reference frequency composition is less than a preset percentage, the comparison is determined to be consistent; when the difference between the amplitude corresponding to a certain frequency in the frequency composition and the amplitude of the same frequency in the reference frequency composition is not less than a preset percentage, the comparison is determined to be inconsistent; When there is a mismatch in the comparison, the alarm device is controlled to sound an alarm.

9. An electronic device, characterized in that: including a processor and a memory; The processor is connected to the memory; The memory is used to store executable program code; The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to execute the method according to any one of claims 6 to 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 6 to 8 is implemented.

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