A voice coil position adjustment method and device, a storage medium and a program product

Abstract

The application discloses a voice coil position adjustment method and device, a storage medium and a program product. The method comprises the following steps: obtaining a first detection image of a voice coil unit to be detected, wherein the voice coil unit to be detected comprises a voice coil carrier and a voice coil body, and the voice coil body is arranged on the voice coil carrier; determining a standard outgoing line position of the voice coil carrier and a current position of an outgoing line port of the voice coil body according to the first detection image; determining an offset amount of the current position relative to the standard outgoing line position in an adjustment direction according to the standard outgoing line position of the voice coil carrier and the current position of the outgoing line port of the voice coil body; and adjusting the position of the outgoing line port of the voice coil body according to the offset amount. The technical scheme provided by the application avoids uncontrollable offset amount determination and improves the consistency of product adjustment.

Description

Technical Field

[0001] This invention relates to the field of voice coil manufacturing technology, and in particular to a voice coil position adjustment method, apparatus, storage medium, and program product. Background Technology

[0002] The voice coil is a crucial component in audio equipment. During its production, the lead-out ports of the voice coil body and the voice coil carrier must be aligned and assembled. Misalignment will affect product performance in subsequent applications. Current technology typically uses a CCD magnifying glass to manually determine and adjust the lead-out port position of the voice coil body. This method introduces significant errors and reduces product consistency. Summary of the Invention

[0003] This invention provides a voice coil position adjustment method, device, storage medium, and program product, which avoids uncontrollable offset judgment and improves the consistency of product adjustment.

[0004] In a first aspect, embodiments of the present invention provide a voice coil position adjustment method, comprising:

[0005] Acquire a first detection image of the voice coil unit to be tested, wherein the voice coil unit to be tested includes a voice coil carrier and a voice coil body, and the voice coil body is disposed on the voice coil carrier;

[0006] The standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body are determined based on the first detection image.

[0007] The offset of the current position relative to the standard output position in the adjustment direction is determined based on the standard output position of the voice coil carrier and the current position of the output port of the voice coil body.

[0008] Adjust the position of the outlet of the voice coil body according to the offset.

[0009] Optionally, determining the standard exit position of the voice coil carrier and the current exit position of the voice coil body based on the first detection image includes:

[0010] Establish a planar position reference;

[0011] Based on the planar position reference, the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body are extracted from the first detection image.

[0012] Optionally, extracting the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body in the first detection image based on the planar position reference includes:

[0013] Extract the border position parameters of the voice coil carrier outlet based on the first detection image;

[0014] Determine the standard outgoing line position based on the border position parameters;

[0015] Extract the outlet position parameters of the voice coil body based on the first detected image;

[0016] The current position of the outlet of the voice coil body is determined based on the outlet position parameters of the voice coil body.

[0017] Optionally, after adjusting the outlet position of the voice coil body according to the offset, the method further includes:

[0018] Acquire the second detection image of the voice coil unit under test;

[0019] The current position of the outlet of the voice coil body is determined based on the second detection image;

[0020] Determine the offset of the current position relative to the standard outgoing position in the adjustment direction;

[0021] Adjust the outlet position of the voice coil body according to the offset until the outlet position of the voice coil body is adjusted to the standard outlet position.

[0022] In a second aspect, embodiments of the present invention provide a voice coil position adjustment device, comprising: an acquisition module, an adjustment module, and a processing module;

[0023] The acquisition module is used to acquire a first detection image of the voice coil unit to be tested, wherein the voice coil unit to be tested includes a voice coil carrier and a voice coil body, and the voice coil body is disposed on the voice coil carrier;

[0024] The processing module is used to determine the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body based on the first detection image.

[0025] The processing module is also used to determine the offset of the current position relative to the standard output position in the adjustment direction based on the standard output position of the voice coil carrier and the current position of the output port of the voice coil body;

[0026] The adjustment module is used to adjust the outlet position of the voice coil body according to the offset.

[0027] Optionally, the processing module includes:

[0028] The first processing unit is used to establish a planar position reference;

[0029] The second processing unit is used to extract the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body from the first detection image based on the planar position reference.

[0030] Optionally, the second processing unit includes:

[0031] The first extraction unit is used to extract the border position parameters of the voice coil carrier outlet based on the first detection image, and to determine the standard outlet position based on the border position parameters.

[0032] The second extraction unit is used to extract the outlet position parameters of the voice coil body based on the first detection image, and to determine the current position of the outlet of the voice coil body based on the outlet position parameters of the voice coil body.

[0033] Optionally, the adjustment module is a stepper motor.

[0034] Thirdly, embodiments of the present invention provide a computer-readable storage medium storing computer instructions, which are used to cause a processor to execute the voice coil position adjustment method described in any of the embodiments of the present invention.

[0035] Fourthly, embodiments of the present invention provide a computer program product, the computer program product including a computer program, which, when executed by a processor, implements the voice coil position adjustment method described in any of the embodiments of the present invention.

[0036] This invention provides an embodiment of the invention that acquires a first detection image of the voice coil unit under test, uses the first detection image to determine the offset of the current position of the voice coil body's outlet relative to the standard outlet position in the adjustment direction, and adjusts the outlet position of the voice coil body according to the offset. This achieves image-based determination of the offset between the voice coil body's outlet and the standard outlet position, avoiding uncontrollable offset judgment and improving the consistency of product adjustment. Attached Figure Description

[0037] Figure 1 A flowchart of a voice coil position adjustment method provided in an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of a voice coil unit under test provided in an embodiment of the present invention;

[0039] Figure 3 A flowchart illustrating another voice coil position adjustment method provided in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the characteristic position of a voice coil unit under test provided in an embodiment of the present invention;

[0041] Figure 5 A flowchart illustrating another voice coil position adjustment method provided in an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of a voice coil position adjustment device provided in an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of another voice coil position adjustment device provided in an embodiment of the present invention. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Figure 1 This is a flowchart illustrating a voice coil position adjustment method according to an embodiment of the present invention. This embodiment is applicable to voice coil assembly. The method can be executed by a voice coil position adjustment device, which can be implemented in hardware and / or software. The method specifically includes the following steps:

[0046] S110. Obtain the first detection image of the voice coil unit to be tested, wherein the voice coil unit to be tested includes a voice coil carrier and a voice coil body, and the voice coil body is disposed on the voice coil carrier.

[0047] Specifically, the first detection image is a vertical image of the voice coil unit under test, which can be acquired by taking pictures using equipment such as a high-definition camera or an industrial camera. When testing the voice coil unit under test, the voice coil unit is placed coaxially with or at the same height as the camera, so that a vertical image of the voice coil unit under test can be acquired through the camera, which facilitates the determination of the relative offset between the voice coil body and the voice coil carrier.

[0048] For example, Figure 2 This is a schematic diagram of a voice coil unit under test provided in an embodiment of the present invention. The voice coil unit under test includes a voice coil carrier 110 and a voice coil body 120. The voice coil body 120 is disposed on the voice coil carrier 110. For example, the voice coil carrier is a frame with a notch, which is the outlet 111 of the voice coil carrier. The voice coil body is a cylindrical structure and is located at the center of the voice coil carrier. The voice coil body can be rotated around the central axis of the cylindrical structure.

[0049] S120. Determine the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body based on the first detection image;

[0050] To ensure product performance, it is usually necessary to align the exit port 111 of the voice coil carrier with the exit port 121 of the voice coil body. Therefore, with the exit port 111 of the voice coil carrier as the alignment reference, the exit port 111 of the voice coil carrier faces the camera to obtain a vertical image including the voice coil carrier. Through image processing, the position of the exit port 111 of the voice coil carrier is determined in the first detection image, and a standard exit position is set according to this position. The standard exit position is the alignment position of the exit port 121 of the voice coil body. By setting protrusions, coating marks, etc. at the position of the exit port 121 of the voice coil body, it is easy to determine the current position of the exit port 121 of the voice coil body through the first detection image.

[0051] S130. Determine the offset of the current position relative to the standard output position in the adjustment direction based on the standard output position of the voice coil carrier and the current position of the output port 121 of the voice coil body.

[0052] Specifically, the adjustment direction is the rotation direction of the voice coil body, and the standard output position is the alignment position of the output port 121 of the voice coil body. Therefore, in the first detection image, if there is an offset between the standard output position of the voice coil carrier and the current position of the output port 121 of the voice coil body, the two will not coincide. The offset amount is determined based on the non-coincidence position of the two in the adjustment direction.

[0053] S140. Adjust the position of the voice coil body's outlet 121 according to the offset.

[0054] Specifically, the voice coil body is rotated by external equipment such as a rotary motor according to the offset, thereby adjusting the position of the voice coil body's outlet 121.

[0055] This invention acquires a first detection image of the voice coil unit under test, uses the first detection image to determine the offset of the current position of the voice coil body's outlet 121 relative to the standard outlet position in the adjustment direction, and adjusts the position of the voice coil body's outlet 121 according to the offset. This achieves image-based determination of the offset between the voice coil body's outlet 121 and the standard outlet position, avoiding uncontrollable offset judgment and improving the consistency of product adjustment.

[0056] Figure 3 A flowchart of another voice coil position adjustment method provided in an embodiment of the present invention can be found here. Figure 3 ,include:

[0057] S210. Obtain the first detection image of the voice coil unit to be tested, wherein the voice coil unit to be tested includes a voice coil carrier and a voice coil body, and the voice coil body is disposed on the voice coil carrier.

[0058] S220. Establish a planar position reference;

[0059] Specifically, the planar position reference can be a planar coordinate system. For example, by establishing a planar coordinate system in the first detection image, the positions of the voice coil carrier and the voice coil body in the first detection image can be represented by coordinate parameters or numerical parameters, thereby allowing the planar position reference to convert image information into digital information.

[0060] S230. Based on the planar position reference, extract the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body from the first detection image.

[0061] For details, please refer to [link / reference]. Figure 2 Image processing can be used to extract features of the voice coil carrier's outlet 111, such as border information. For example, if the outlet 111 is rectangular, the border position of the outlet can be obtained, and the center position of the outlet can be determined using the boundary. This center position corresponds to the standard outlet position, and the planar position is used to determine the data information for the standard outlet position 112. For example, the data information for the standard outlet position 112 can be applied to the next voice coil unit to be tested, thus avoiding multiple measurements of the standard outlet position 112. Similarly, features of the voice coil body's outlet 121 are extracted, and the planar position is used to determine the data information for the voice coil body's outlet 121.

[0062] S240. Determine the offset of the current position relative to the standard output position in the adjustment direction based on the standard output position of the voice coil carrier and the current position of the output port of the voice coil body.

[0063] Specifically, by using the data information of the standard exit position 112 and the data information of the exit port 121 of the voice coil body, the difference in the adjustment direction is the rotation direction of the voice coil body, and the standard exit position 112 is the alignment position of the exit port 121 of the voice coil body, and the corresponding offset can be determined.

[0064] S250. Adjust the position of the voice coil outlet according to the offset.

[0065] Based on the above embodiments, optionally, extracting the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body from the first detection image according to the planar position reference includes:

[0066] Extract the frame position parameters of the voice coil carrier outlet based on the first detection image;

[0067] Determine the standard outgoing line position based on the border position parameters;

[0068] Extract the outlet position parameters of the voice coil body based on the first detection image;

[0069] The current position of the voice coil body's outlet is determined based on the outlet position parameters of the voice coil body.

[0070] Specifically, the positional parameters of the two sides of the voice coil carrier outlet are extracted in the adjustment direction. For example, Figure 4 This is a schematic diagram of the characteristic position of a voice coil unit under test provided in an embodiment of the present invention. Taking the xy coordinate system as an example, with the lower right corner of the first detection image as the origin, the coordinate parameters on the first side boundary are (X1, Y1) and the coordinate parameters on the second side boundary are (X2, Y2). Therefore, based on the position parameters of the two side boundaries, the position parameter of the center position of the voice coil carrier outlet can be obtained as (X1+X2) / 2. Based on the image information of the detected outlet 121 of the voice coil body, it can be converted into the corresponding position parameter (X3, Y3), thereby determining the current position of the outlet 121 of the voice coil body. Therefore, in the subsequent offset determination, the specific offset can be determined by the position parameters of the planar position reference. For example, the above offset can be determined as (X1+X2) / 2-X3.

[0071] Based on the above embodiments, optionally, after adjusting the outlet position of the voice coil body according to the offset, the method further includes:

[0072] Acquire the second detection image of the voice coil unit under test;

[0073] The current position of the voice coil body's outlet 121 is determined based on the second detection image;

[0074] Determine the offset of the current position relative to the standard exit position 112 in the adjustment direction;

[0075] Adjust the position of the voice coil outlet 121 according to the offset until the position of the voice coil outlet 121 is adjusted to the standard outlet position 112.

[0076] Specifically, the second detection image is acquired in the same way as the first detection image. After adjusting the position of the voice coil body's outlet 121, the second detection image is acquired for subsequent determination of whether the adjustment is in place. Based on the characteristics of the voice coil body's outlet 121, the position of the voice coil body's outlet 121 is determined in the second detection image. The accuracy of adjusting the voice coil body's outlet 121 is further improved by performing cyclic detection after adjusting the position of the voice coil body's outlet 121 according to the offset. For example, to avoid repeated machine cycles, a threshold range can be set for the offset. When the detected offset falls within this threshold range, it can be determined that the position of the voice coil body's outlet 121 has been adjusted to the standard outlet position 112, thereby improving the product's adjustment efficiency.

[0077] Figure 5A flowchart of another voice coil position adjustment method provided in an embodiment of the present invention can be found here. Figure 5 ,include:

[0078] S1. Load the voice coil unit to be tested. S2. Obtain the first detection image of the voice coil unit to be tested. Based on the first detection image, determine the offset of the current position of the voice coil body outlet relative to the standard outlet position 112 of the voice coil carrier outlet 111. If the offset is qualified, S3. Remove the product from the production line. If the offset is unqualified, S4. Correct the offset. S5. Obtain the second detection image of the voice coil unit to be tested and determine the offset again. If qualified, remove the product from the production line. If unqualified, return to S4 to continue execution. Use image judgment to determine the offset and make adjustments to avoid uncontrollable offset judgment and improve the consistency of product adjustment.

[0079] Figure 6 This is a schematic diagram of a voice coil position adjustment device provided in an embodiment of the present invention. See also: Figure 6 It includes: an acquisition module 610, an adjustment module 620, and a processing module 630;

[0080] The acquisition module 610 is used to acquire the first detection image of the voice coil unit under test, wherein the voice coil unit under test includes a voice coil carrier and a voice coil body, and the voice coil body is disposed on the voice coil carrier;

[0081] The processing module 630 is used to determine the standard exit position 112 of the voice coil carrier and the current position of the exit port 121 of the voice coil body based on the first detection image;

[0082] The processing module 630 is also used to determine the offset of the current position relative to the standard output position 112 in the adjustment direction based on the standard output position 112 of the voice coil carrier and the current position of the output port 121 of the voice coil body.

[0083] The adjustment module 620 is used to adjust the position of the outlet 121 of the voice coil body according to the offset.

[0084] Specifically, the first detection image is a vertical image of the voice coil unit under test. The acquisition module 610 can be used to capture the image using a high-definition camera, industrial camera, or other equipment. The acquisition module 610 can be placed coaxially or at the same height as the voice coil unit under test, thereby acquiring a vertical image of the voice coil unit under test, which facilitates the determination of the relative offset between the voice coil body and the voice coil carrier. The processing module 630 determines the position of the outlet 111 of the voice coil carrier in the first detection image through image processing, and sets a standard outlet position 112 based on this position. The standard outlet position 112 is the alignment position of the outlet 121 of the voice coil body. By setting protrusions, coating marks, or other methods at the outlet 121 of the voice coil body, the current position of the outlet 121 of the voice coil body can be easily determined through the first detection image. In the first detection image, if there is an offset between the standard exit position 112 of the voice coil carrier and the current position of the exit port 121 of the voice coil body, they will not coincide. The processing unit determines the offset based on the non-coincidence of the two positions in the adjustment direction. For example, the adjustment module 620 can use a stepper motor, rotary motor, etc., and can generate a corresponding electrical control signal based on the offset. Thus, the adjustment module 620 outputs power to drive the voice coil body to rotate according to the offset, thereby completing the position adjustment of the exit port 121 of the voice coil body.

[0085] Optionally, the processing module 630 includes:

[0086] The first processing unit is used to establish a planar position reference;

[0087] The second processing unit is used to extract the standard exit position 112 of the voice coil carrier and the current position of the exit port 121 of the voice coil body from the first detection image based on the planar position reference.

[0088] Specifically, the planar position reference can be a planar coordinate system. For example, the first processing unit establishes a planar coordinate system in the first detection image. Therefore, the positions of the voice coil carrier and the voice coil body in the first detection image can be represented by coordinate parameters or numerical parameters, thereby converting image information into digital information using the planar position reference. The second processing unit, based on the extracted features of the voice coil carrier's outlet 111, such as border information, for example, if the voice coil carrier's outlet 111 is rectangular, can obtain the border position of the outlet, thereby determining the center position of the outlet using the boundary, which is the corresponding standard outlet position. The planar position is then used to determine the data information of the standard outlet position 112. For example, the data information of the standard outlet position 112 can be applied to the next voice coil unit to be detected, thereby avoiding multiple measurements of the standard outlet position 112. Similarly, the features of the voice coil body's outlet 121 are extracted, and the planar position is used to determine the data information of the voice coil body's outlet 121.

[0089] Optionally, the second processing unit includes:

[0090] The first extraction unit is used to extract the border position parameters of the voice coil carrier outlet based on the first detection image, and determine the standard outlet position 112 based on the border position parameters.

[0091] The second extraction unit is used to extract the position parameters of the outlet 121 of the voice coil body based on the first detection image, and to determine the current position of the outlet 121 of the voice coil body based on the position parameters of the outlet 121 of the voice coil body.

[0092] Specifically, the positional parameters of the two sides of the voice coil carrier outlet are extracted in the adjustment direction. For example, see [link to example]. Figure 4 Taking the xy coordinate system as an example for planar position reference, with the lower right corner of the first detection image as the origin, the coordinate parameters on the first side boundary are (X1, Y1), and the coordinate parameters on the second side boundary are (X2, Y2). Therefore, the first extraction unit can obtain the position parameter of the center position of the voice coil carrier outlet as (X1+X2) / 2 based on the position parameters of the two side boundaries. The second extraction unit, based on the image information of the detected voice coil outlet 121, can correspondingly convert it to the position parameter (X3, Y3), thereby determining the current position of the voice coil outlet 121. Therefore, in the subsequent offset determination, the specific offset can be determined through the position parameters of the planar position reference; for example, the above offset can be determined as (X1+X2) / 2-X3.

[0093] Figure 7 A schematic diagram of another voice coil position adjustment device provided in an embodiment of the present invention is shown below. Figure 7 ,include:

[0094] A horizontal mounting bracket 710 and a vertical mounting bracket 720 are provided. An acquisition module 610 is mounted on the horizontal mounting bracket and can slide horizontally, thereby adjusting the distance between the acquisition module 610 and the voice coil unit 740 under test. For example, the acquisition module 610 may be a high-definition camera, industrial camera, or similar device. An adjustment module 620 is mounted on the vertical mounting bracket 720, wherein... Figure 7For clarity of the structural diagram, the vertical mounting bracket 720 on one side is omitted for ease of illustration. For example, the adjustment module 620 can be a stepper motor or a rotary motor. The lower end of the adjustment module 620 is equipped with a corresponding clamp to hold the voice coil body, allowing the adjustment module 620 to output power to rotate the voice coil body. For example, a light source 750 can also be placed between the acquisition module 610 and the voice coil unit 740 under test to provide supplementary lighting for the voice coil unit 740 under test, thereby improving the clarity of the acquired image. The adjustment module 620 and the acquisition module 610 are connected to the processing module 630 via a data cable. The stage 730 can fix the voice coil carrier, thereby fixing the position of the voice coil carrier and fixing the output port of the voice coil carrier to acquire the first detection image, reducing installation errors when using the output port of the voice coil carrier as a reference.

[0095] In actual operation, the voice coil unit to be tested is placed on the stage, wherein the voice coil body is held by a fixture, the acquisition unit acquires a first detection image, the processing module 630 determines the current position of the standard exit position 112 of the voice coil carrier and the exit port 121 of the voice coil body based on the first detection image; and determines the offset of the current position relative to the standard exit position 112 in the adjustment direction based on the standard exit position 112 of the voice coil carrier and the exit port 121 of the voice coil body; the adjustment module 620 outputs power according to the offset to drive the voice coil body to rotate, so that the exit port 121 of the voice coil body and the standard exit position 112 of the voice coil carrier coincide.

[0096] In some embodiments, the voice coil position adjustment method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on a suitable device via a ROM and / or communication unit. When the computer program is loaded into RAM and executed by a processor, one or more steps of the voice coil position adjustment method described above may be performed. Alternatively, in other embodiments, the processing unit may be configured to perform the voice coil position adjustment method by any other suitable means (e.g., by means of firmware).

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A voice coil position adjustment method, characterized by, include: Acquire a first detection image of the voice coil unit to be tested, wherein the voice coil unit to be tested includes a voice coil carrier and a voice coil body, and the voice coil body is disposed on the voice coil carrier; The standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body are determined based on the first detection image. The offset of the current position relative to the standard output position in the adjustment direction is determined based on the standard output position of the voice coil carrier and the current position of the output port of the voice coil body. Adjust the position of the outlet of the voice coil body according to the offset; Wherein, the first detection image is an image of the voice coil unit under test in the vertical direction, the adjustment direction is the rotation direction of the voice coil body, and the standard exit position is the alignment position of the exit port of the voice coil body.

2. The voice coil position adjustment method of claim 1, wherein Determining the standard exit position of the voice coil carrier and the current exit position of the voice coil body based on the first detection image includes: Establish a planar position reference; Based on the planar position reference, the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body are extracted from the first detection image.

3. The voice coil position adjustment method of claim 2, wherein Based on the planar position reference, the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body are extracted from the first detection image, including: Extract the border position parameters of the voice coil carrier outlet based on the first detection image; Determine the standard outgoing line position based on the border position parameters; Extract the outlet position parameters of the voice coil body based on the first detected image; The current position of the outlet of the voice coil body is determined based on the outlet position parameters of the voice coil body.

4. The voice coil position adjustment method of claim 3, wherein After adjusting the outlet position of the voice coil body according to the offset, the method further includes: Acquire the second detection image of the voice coil unit under test; The current position of the outlet of the voice coil body is determined based on the second detection image; Determine the offset of the current position relative to the standard outgoing position in the adjustment direction; Adjust the outlet position of the voice coil body according to the offset until the outlet position of the voice coil body is adjusted to the standard outlet position.

5. A voice coil position adjustment apparatus for performing the voice coil position adjustment method according to any one of claims 1 to 4, characterized by include: Acquisition module, adjustment module, and processing module; The acquisition module is used to acquire a first detection image of the voice coil unit under test, wherein the voice coil unit under test includes a voice coil carrier and a voice coil body, and the voice coil body is disposed on the voice coil carrier; The processing module is used to determine the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body based on the first detection image. The processing module is also used to determine the offset of the current position relative to the standard output position in the adjustment direction based on the standard output position of the voice coil carrier and the current position of the output port of the voice coil body; The adjustment module is used to adjust the outlet position of the voice coil body according to the offset.

6. The voice coil position adjustment device according to claim 5, characterized in that, The processing module includes: The first processing unit is used to establish a planar position reference; The second processing unit is used to extract the standard exit position of the voice coil carrier and the current position of the exit port of the voice coil body from the first detection image based on the planar position reference.

7. The voice coil position adjustment device according to claim 6, characterized in that, The second processing unit includes: The first extraction unit is used to extract the border position parameters of the voice coil carrier outlet based on the first detection image, and to determine the standard outlet position based on the border position parameters. The second extraction unit is used to extract the outlet position parameters of the voice coil body based on the first detection image, and to determine the current position of the outlet of the voice coil body based on the outlet position parameters of the voice coil body.

8. The voice coil position adjustment device according to claim 5, characterized in that, The adjustment module is a stepper motor.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the voice coil position adjustment method according to any one of claims 1-4.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the voice coil position adjustment method according to any one of claims 1-4.

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