阅读说明：本技术 麦克风检测设备及麦克风检测方法 (Microphone detection device and microphone detection method ) 是由 赖灿 于 2020-05-29 设计创作，主要内容包括：本申请实施例提供一种麦克风检测设备和麦克风检测方法,麦克风检测设备包括：定位载板,所述定位载板用于放置待测麦克风；第一驱动装置,所述第一驱动装置用于在第一方向上调节所述定位载板；第二驱动装置,所述第二驱动装置用于在第二方向上调节所述定位载板；光学检测装置,所述光学检测装置用于检测所述待测麦克风的入音孔内是否存在异物。基于此,本申请实施例的麦克风检测设备,可以对麦克风产品入音孔内不同的位置进行拍摄,用于检测麦克风入音孔内是否存在异物,提高麦克风产品内异物分析的准确率。(The embodiment of the application provides a microphone detection device and a microphone detection method, wherein the microphone detection device comprises: the positioning carrier plate is used for placing a microphone to be tested; a first drive device for adjusting the positioning carrier plate in a first direction; a second drive for adjusting the positioning carrier plate in a second direction; and the optical detection device is used for detecting whether foreign matters exist in the sound inlet hole of the microphone to be detected. Based on this, the microphone detection equipment of this application embodiment can be gone into different positions in the sound hole to the microphone product and shoot for whether there is the foreign matter in the detection microphone sound hole, improve the accuracy of foreign matter analysis in the microphone product.)

1. A microphone detection apparatus, comprising:

the positioning carrier plate is used for placing a microphone to be tested;

a first drive device for adjusting the positioning carrier plate in a first direction;

a second drive for adjusting the positioning carrier plate in a second direction;

and the optical detection device is used for detecting whether foreign matters exist in the sound inlet hole of the microphone to be detected.

2. The microphone detecting apparatus according to claim 1, characterized by further comprising:

the cover plate is covered on the microphone to be tested;

and the third driving device is rotationally connected with the cover plate and drives the cover plate to move so as to change the height of the microphone to be tested relative to the positioning carrier plate.

3. The microphone detection apparatus of claim 2, wherein the first driving device is configured to adjust the positioning carrier, the cover plate, and the third driving device to rotate in a first direction, and the second driving device is configured to adjust the positioning carrier, the cover plate, the first driving device, and the third driving device to rotate in a second direction, and the first direction and the second direction are perpendicular to each other.

4. The microphone detection device according to claim 1, wherein a suction cup is disposed on the positioning carrier plate, and the suction cup is used for sucking the microphone to be detected.

5. The microphone detection apparatus of claim 1, wherein the optical detection device comprises at least two detection cameras, and the at least two detection cameras can simultaneously detect at least two microphones to be detected.

6. The microphone detecting apparatus according to claim 1, characterized by further comprising:

and the fourth driving device is connected with the optical detection device, and the driving device is used for driving the optical detection device to move along the first direction.

7. The microphone detection apparatus according to any one of claims 1 to 6, characterized by further comprising:

and the transmission assembly is in transmission connection with the positioning carrier plate and is used for transmitting the positioning carrier plate to a detection area corresponding to the optical detection device.

8. A microphone detection method applied to a microphone detection device according to any one of claims 1 to 7, the method comprising:

acquiring a first image in a sound hole of a microphone to be detected;

rotating the microphone to be tested to enable the microphone to be tested to rotate by a first angle;

acquiring a second image of the rotated microphone to be detected in the sound inlet;

and analyzing the first image and the second image to judge whether foreign matters exist in the sound inlet hole of the microphone to be detected.

9. The method as claimed in claim 8, wherein the rotating the microphone to be tested to rotate the microphone to be tested by a first angle comprises:

rotating the microphone to be tested to enable the microphone to be tested to rotate by the first angle along a second direction;

after the second image in the microphone to be tested sound inlet hole after the rotation is obtained, the method further comprises the following steps:

rotating the microphone to be tested to enable the microphone to be tested to rotate by the second angle along the first direction;

acquiring a third image of the rotated microphone to be detected in the sound inlet;

the analyzing the first image and the second image comprises:

analyzing the first image, the second image, and the third image.

10. The microphone detection method according to claim 8, wherein before the acquiring the first image of the microphone to be detected in the sound inlet hole:

focusing the sound inlet hole of the microphone to be tested;

before the acquiring the second image in the sound inlet hole of the microphone to be tested, the method further comprises the following steps:

and focusing the sound inlet hole of the microphone to be tested.

Technical Field

The present disclosure relates to the field of detection devices, and in particular, to a microphone detection device and a microphone detection method.

Background

With the improvement of living standard and the development of production and manufacturing technology, people put forward higher requirements on product quality, and the product quality detection problems exist in the industries of 3C products (computers, communication and consumer electronics), textiles, medical packaging, food packaging and the like. For example, in an acoustic-electric conversion product such as a microphone, if dust exists on a diaphragm, the quality of the acoustic-electric conversion product is greatly affected, and therefore, the acoustic-electric conversion product often needs to be subjected to foreign matter detection before being used.

The detection of the foreign matters of the microphone products in the market is often through manual detection, and along with the improvement of the output and the quality requirement of the microphone products, the traditional manual detection of the foreign matters in the sound inlet holes of the microphones cannot meet the development requirements of the microphone products.

Disclosure of Invention

The embodiment of the application provides a microphone detection device and a microphone detection method, which can improve the accuracy of analyzing foreign matters in a microphone sound inlet hole.

In a first aspect, an embodiment of the present application provides a microphone detection apparatus, including:

the positioning carrier plate is used for placing a microphone to be tested;

a first drive device for adjusting the positioning carrier plate in a first direction;

a second drive for adjusting the positioning carrier plate in a second direction;

and the optical detection device is used for detecting whether foreign matters exist in the sound inlet hole of the microphone to be detected.

In a second aspect, an embodiment of the present application further provides a microphone detection method, including:

acquiring a first image in a sound hole of a microphone to be detected;

rotating the microphone to be tested to enable the microphone to be tested to rotate by a first angle;

acquiring a second image of the rotated microphone to be detected in the sound inlet;

and analyzing the first image and the second image to judge whether foreign matters exist in the sound inlet hole of the microphone to be detected.

The embodiment of the application provides a microphone detection device and a microphone detection method, which can shoot different positions in a microphone product sound inlet hole, are used for detecting whether foreign matters exist in the microphone sound inlet hole or not, and improve the accuracy of foreign matter analysis in the microphone product.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of a microphone detection device according to an embodiment of the present application.

Fig. 2 is an application schematic diagram of a microphone detection device provided in an embodiment of the present application.

Fig. 3 is a schematic partial structural diagram of a microphone detection device according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a first driving device and a second driving device provided in an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a positioning carrier provided in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a cover plate and a third driving device provided in an embodiment of the present application.

Fig. 7 is another partial structural schematic diagram of a microphone detection device according to an embodiment of the present application.

Fig. 8 is a first flowchart of a microphone detection method according to an embodiment of the present disclosure.

Fig. 9 is a schematic flowchart of a second method for detecting a microphone according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the application provides a microphone detection device and a microphone detection method, and an execution main body of the microphone detection method can be the microphone detection device provided by the embodiment of the application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a microphone detection device, where the microphone detection device 100 of the embodiment of the present application includes: an adjustment component 101 and a detection component 102.

The adjusting assembly 101 may include a first driving device, a second driving device, and a positioning carrier plate, where the first driving device is rotatably connected to the positioning carrier plate, the positioning carrier plate is driven by the first driving device to rotate around a first direction, the second driving device is rotatably connected to the positioning carrier plate, and the positioning carrier plate is driven by the second driving device to rotate around a second direction. For another example, the first direction may be a Z-axis direction as shown in fig. 1, and the second direction may be an X-axis direction as shown in fig. 1.

The positioning support plate can clamp and fix the microphone to be tested, and the first driving device and the second driving device can drive the positioning support plate to rotate so as to further drive the microphone to be tested on the positioning support plate to rotate. Wherein, can also detect other products through this check out test set, there are acoustoelectric conversion devices such as micropore like speaker, earphone, microphone, receiver etc. these acoustoelectric conversion devices include vibrating diaphragm and sound inlet hole (play sound hole), and sound can be transmitted in the transaudient passageway that sound inlet hole and vibrating diaphragm formed, when there are foreign matters such as dust in the vibrating diaphragm, can seriously influence the play sound quality of acoustoelectric conversion device. However, due to the limitation of the visual field in the sound hole, only pictures of the hole bottom of the sound hole can be shot, and pictures of the hole wall around the hole bottom cannot be detected, so that the foreign matter detection accuracy is low. Therefore, the first driving device and the second driving device drive the microphone to be detected to rotate, the visual field of the sound inlet hole can be expanded, so that the detection assembly 102 can shoot pictures of the hole bottom and the hole wall, and the accuracy of foreign matter detection is improved.

The detecting component 102 may include an optical detecting Device, and the optical detecting Device may be a Charge Coupled Device (CCD) camera or a Complementary Metal Oxide Semiconductor (CMOS) camera. Of course, the optical detection device may also be other devices that can complete image acquisition, and the embodiment of the present application does not limit the specific type of the optical detection device.

In some embodiments, the microphone detection apparatus 100 may further include: the transmission assembly 103 is in transmission connection with the positioning carrier plate in the adjustment assembly 101, for example, the transmission assembly 103 may include a chain transmission device, a slide block is disposed on the chain transmission device, the positioning carrier plate is disposed on a fixed seat, the fixed seat is fixedly connected with the slide block, the slide block can be driven to move along a chain by a driving device, and the positioning carrier plate fixedly connected with the fixed seat is further driven to move along a moving direction of the chain, so as to transmit the positioning carrier plate to a detection area corresponding to the detection assembly 102.

Referring to fig. 2, fig. 2 is a schematic application diagram of a microphone detection apparatus according to an embodiment of the present disclosure.

Wherein, the microphone 104 to be tested is fixed on the positioning carrier 1013, the microphone 104 to be tested is transmitted to the corresponding testing area through the transmission component 103, the optical testing device 1021 in the testing component 102 focuses the sound inlet of the microphone 104 to be tested, after focusing is finished, the image of the sound inlet of the microphone 104 to be tested is obtained, the positioning carrier 1013 is rotated by the adjusting component 101, the microphone 104 to be tested arranged on the positioning carrier 1013 is further driven to rotate, the sound inlet of the microphone 104 to be tested can rotate relative to the optical testing device, after the microphone 104 to be tested rotates a certain angle, the sound inlet of the microphone 104 to be tested is focused through the optical testing device 1021 again, and the image of the sound inlet of the microphone 104 to be tested after rotating a certain angle is obtained, it can be understood that the above steps can be repeated to obtain the image of the sound inlet of the microphone 104 to be tested with different visual fields, by processing the acquired image, it can be analyzed whether a foreign object exists in the sound inlet hole of the microphone 104 to be tested.

For clearly explaining the structure of the adjustment assembly provided in the embodiment of the present application, please continue to refer to fig. 3, and fig. 3 is a schematic view of a partial structure of the microphone detection apparatus provided in the embodiment of the present application.

The first driving device 1011 is rotatably connected to the positioning support plate 1013, the first driving device 1011 provides a driving force for the positioning support plate, the positioning support plate 1013 is driven by the first driving device 1011 to rotate around the Z axis, the first driving device 1011 may include a driving motor and a rotating shaft, the rotating shaft is fixedly connected to the positioning support plate 1013, the driving motor drives the rotating shaft to rotate around the Z axis, and the rotating shaft drives the positioning support plate 1013 connected to the rotating shaft to rotate around the Z axis, so as to rotate the microphone to be tested on the positioning support plate in the Z axis direction.

The second driving device 1012 is rotatably connected to the positioning carrier 1013, the second driving device 1012 provides a driving force for the positioning carrier, the second driving device 1012 drives the positioning carrier 1013 to rotate around the X-axis, the second driving device 1012 may include a driving motor and a rotating shaft, the rotating shaft is fixedly connected to the positioning carrier 1013, the driving motor drives the rotating shaft to rotate around the X-axis, and the rotating shaft drives the positioning carrier 1013 connected to the rotating shaft to rotate around the X-axis, so as to rotate the microphone to be tested on the positioning carrier in the X-axis direction.

It is understood that the first driving device 1011 and the second driving device 1012 can be other driving devices, such as a combination of a motor and a gear, a motor and a chain, etc. The present application does not specifically limit the configurations of the first driving device 1011 and the second driving device 1012.

Wherein, be provided with the sucking disc on the location support plate 1013, the sucking disc can be vacuum chuck for adsorb the microphone that awaits measuring, so that the microphone that awaits measuring can be fixed on location support plate 1013, because need detect the income sound hole of the microphone that awaits measuring, therefore, when being fixed in the location support plate with the microphone that awaits measuring, need will go into the sound hole towards the window of finding a view of optical detection device, even go into the sound hole up, so that when the microphone that awaits measuring is conveyed to optical detection device's detection area, make optical detection device can gather the image that the microphone that awaits measuring goes into in the sound hole, in some implementation modes, because it faces upwards to go into the sound hole, get into the foreign matter easily in the testing process, like dust or steam etc., can paste the protection film at the microphone income.

Specifically, before the microphone to be detected is fixed on the positioning support plate, the sound hole of the microphone to be detected is arranged downwards, the microphone to be detected is pasted with the protective film, foreign matters are prevented from entering the sound hole in the pasting process, after the microphone to be detected is pasted with the protective film, the microphone to be detected is turned over, the sound hole of the microphone to be detected is arranged upwards, and when the sound hole of the microphone to be detected is detected, the optical detection device can collect images in the sound hole of the microphone to be detected. It should be noted that the preparation for the microphone to be detected in the early detection stage may be implemented in the front-end device, and implemented by the front-end device and/or manually.

The cover plate 1014 covers the microphone to be detected, the third driving device 1015 is rotatably connected with the cover plate 1014, the third driving device 1015 provides driving force for the rotation of the cover plate, the third driving device 1015 may include a driving motor and a rotating shaft, the rotating shaft is fixedly connected with the cover plate 1014, the driving motor drives the rotating shaft to rotate, the rotating shaft drives the cover plate 1014 connected therewith to rotate to the positioning support plate, and pre-presses the microphone to be detected to determine that the height of the microphone to be detected relative to the positioning support plate is within a preset range, so as to ensure the height precision of different microphones to be detected, and avoid the problem that the focusing of the detection device is inaccurate due to the difference of the heights of different microphones to be detected.

In some embodiments, the adjusting assembly 101 may include a first fixing seat 1016, and the adjusting assembly 101 may be fixedly connected to a slider on the transmission assembly 103 through the first fixing seat 1016, the slider is disposed on a conveying chain, and when the slider moves on the conveying chain, the first fixing seat 1016 fixedly connected to the slider is driven to move, and then the adjusting assembly 101 is driven to move on the chain, and the adjusting assembly 101 may be conveyed to the detection area corresponding to the detection assembly 102 through the fixing seat 1016.

Referring to fig. 3 and 4, fig. 4 is a schematic structural diagram of a first driving device and a second driving device according to an embodiment of the present disclosure.

In the embodiment of the present application, the first driving device 1011 includes a first motor 10111, the first motor 10111 is connected to a connecting member 1017, a positioning carrier plate 1013 (not shown in fig. 4), a cover plate 1014 (not shown in fig. 4) and a cover plate motor 1015 (not shown in fig. 4) are disposed on the connecting member 1017, the first motor 10111 can drive the connecting member 1017 to rotate along the Z axis by a certain angle, for example, the rotation angle range may be 0 ° to 60 °, and when the first motor 10111 drives the connecting member 1017 to rotate, the positioning carrier plate 1013 connected to the connecting member 1017, the cover plate 1014 and the cover plate motor 1015 are driven to rotate together by a certain angle.

The second driving device 1012 includes a second motor 10121, the second motor 10121 is connected to one end of a rotating member 1018, the rotating member 1018 is provided with a connecting member 1017 and connected to the connecting member 1017, wherein the rotating member 1018 is disposed between the connecting member 1017 and the first motor 10111, and the other end of the rotating member 1018 is connected to the first motor 10111. When the rotating member rotates, the connecting member 1017 and the first motor 10111 can be driven to rotate.

Specifically, the second motor 10121 may drive the rotation element 1018 to rotate by a certain angle along the X axis, for example, the rotation angle may range from 0 ° to 60 °, and when the second motor 10121 drives the rotation element 1018 to rotate, the connection element 1017 and the first motor 10111 connected to the rotation element 1018 are driven to rotate, and then the positioning support plate 1013, the cover plate 1014, and the third driving device 1015 connected to the connection element 1017 are driven to rotate together.

In some embodiments, the positions of the first driving device and the second driving device may be set according to actual production requirements, and the types and the numbers of the devices powered by the first driving device and the second driving device may be set according to actual production requirements, and likewise, the rotation angles of the devices powered by the first driving device and the second driving device may also be set according to actual production requirements.

Referring to fig. 3, fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of a positioning carrier according to an embodiment of the present application, and fig. 6 is a schematic structural diagram of a cover plate and a third driving device according to the embodiment of the present application.

The positioning carrier 1013 is provided with a first groove 10131 for fixing a microphone to be tested, and the microphone to be tested may be an acoustic-electric conversion device such as a microphone, a speaker, an earphone, a microphone, a receiver, etc. The shapes of the sound-electricity conversion device shells can be regular, such as circular, triangular, rectangular or polygonal, and the like, and can also be irregular, wherein the shape of the first groove 10131 can be set according to the shape of the microphone to be tested, and the first groove 10131 is matched with the shape of the microphone to be tested.

The microphone that awaits measuring includes relative first surface and the second surface that sets up, wherein the first surface is provided with the income sound hole that is used for transmitting sound signal, when the microphone that will await measuring is fixed in first recess 10131, with first recess 10131 of second surface orientation, in order to improve the fixed effect of second surface and first recess 10131, be provided with first sucking disc 10132 at first recess 10131 tank bottom, exemplarily, first sucking disc 10132 can be vacuum chuck for adsorb the second surface of the microphone that awaits measuring, make the microphone that awaits measuring better with the fixed effect of location carrier plate.

It can be understood that, in order to improve the detection efficiency, the positioning carrier plate is further provided with a second groove 10133 and a second suction cup 10134, which can fix two microphones to be detected simultaneously, so that the two microphones to be detected can be detected simultaneously, and the detection efficiency can be improved.

A carrier connecting member 10135 connected to the cover plate is further disposed on the positioning carrier 1013, and the cover plate 1014 may be connected to the carrier connecting member 10135 through the cover connecting member 10141, wherein the carrier connecting member 10135 and the cover connecting member 10141 may be fixedly connected through fixing devices such as screws, nuts, and nuts.

The cover plate 1014 may include a first portion 10142 for covering a microphone to be tested and a second portion 10143 for rotation, for example, the cover plate 1014 may be of a T-shaped structure, the third driving device 1015 is rotatably connected to the second portion 10143 of the cover plate through a rotating shaft 10144, the third driving device 1015 provides a driving force for rotation of the rotating shaft 10144, the rotating shaft 10144 is fixedly connected to the second portion 10143, the rotating shaft 10144 rotates the second portion 10143, the rotating shaft 10144 drives the first portion 10142 fixedly connected to the rotating shaft 10144 to rotate to the positioning carrier plate, and the microphone to be tested is pre-pressed to determine a height of the microphone to be tested relative to the positioning carrier plate, thereby ensuring height accuracy of different microphones to be tested, and avoiding a problem of inaccurate focusing of the detection device due to a difference in height of different microphones to be tested.

For clearly explaining the structure of the detecting element provided in the embodiment of the present application, please continue to refer to fig. 7, and fig. 7 is a schematic view of another part of the structure of the microphone detecting device provided in the embodiment of the present application.

The detecting assembly 102 is fixed on the workbench 105 through the second fixing base 1051, wherein the second fixing base 1051 can be fixed on the workbench through screws, bolts or other fixing members for fixing, so as to ensure the stability of the optical detecting device during detection.

The optical detection apparatus includes a first detection camera 1022, a second detection camera 1023, a fourth driving device 1024 and a fifth driving device 1025, wherein the first detection camera 1022 is connected to the fourth driving device 1024, the second detection camera 1023 is connected to the fifth driving device 1025, the fourth driving device 1024 and the fifth driving device 1025 respectively drive the first detection camera 1022 and the second detection camera 1023 to move in the Z-axis direction, it is understood that the distance between the first detection camera 1022 and the second detection camera 1023 relative to the microphone to be detected can be adjusted by fine adjustment to adjust the detection parameters of the optical detection apparatus, wherein the detection parameters can be focal parameters, it is understood that the distances between the first detection camera 1022 and the second detection camera 1023 and the corresponding microphone to be detected inlet hole bottoms are different due to certain differences of different specifications of the microphones to be detected, therefore, the distances between the first detection camera 1022 and the second detection camera 1023 and the hole bottoms of the sound holes of the corresponding microphones to be detected can be correspondingly adjusted through the fourth driving device 1024 and the fifth driving device 1025, so that the detection cameras can better focus, and clear images of the sound holes are obtained.

It should be noted that, the number of the detection cameras may be set according to actual production requirements, for example, three, four, or five detection cameras are set, only one driving device may be set, a plurality of detection cameras are driven to move simultaneously, and the driving device may also be set correspondingly according to the number of the detection cameras. The number of the detection cameras and the driving devices in the detection assembly provided by the embodiment of the application is not limited by the embodiment of the application.

The microphone check out test set that this application embodiment provided includes: the positioning carrier plate is used for placing a microphone to be tested; a first drive device for adjusting the positioning carrier plate in a first direction; a second drive for adjusting the positioning carrier plate in a second direction; and the optical detection device is used for detecting whether foreign matters exist in the sound inlet hole of the microphone to be detected. Based on this, the microphone check out test set of this application embodiment, can go into the different positions in the sound hole to shoot to the microphone product, whether there is the foreign matter in being used for detecting the microphone and going into the sound hole, improve the accuracy rate that the microphone product goes into the interior foreign matter analysis of sound hole, in addition, the microphone check out test set that this application embodiment provided can also go into the sound hole to two at least microphone products simultaneously and detect, the detection time of producing the interior foreign matter of sound hole is gone into to the microphone on the line has been shortened, the detection efficiency of the interior foreign matter of sound hole is gone into to the microphone product has been improved.

An embodiment of the present application further provides a microphone detection method, which is applied to the microphone detection device, specifically, please refer to fig. 8, where fig. 8 is a first flowchart of the microphone detection method, and the method includes:

201, acquiring a first image in a sound inlet of a microphone to be detected.

The first image of the microphone to be detected in the sound inlet can be acquired through the optical detection device, and specifically, the focal length of the optical detection device needs to be adjusted before the image of the microphone to be detected is collected, so that focusing is clear. In the focusing process, a focusing space between the microphone to be detected and the initial position of the optical detection device is divided into a plurality of photographing positions according to equal intervals, a detection camera or a lens of the detection camera in the optical detection device can be moved to each photographing position to collect an image of the microphone to be detected, the collected image is a first image at the photographing position, and the first image can be a view including the hole bottom of the sound inlet hole of the microphone to be detected and is used for detecting whether foreign matters exist at the hole bottom of the sound inlet hole of the microphone to be detected.

It is understood that the detection camera may be a Charge Coupled Device (CCD) camera or a Complementary Metal Oxide Semiconductor (CMOS) camera. Of course, the detection camera may also be another sensor that can complete image acquisition, and the embodiment of the present application does not limit the specific type of the detection camera.

202, the microphone to be tested is rotated to rotate the microphone to be tested by a first angle.

The microphone to be detected can be rotated by adjusting the first driving device and/or the second driving device in the assembly, so that the microphone to be detected can be rotated by a first angle, specifically, the microphone to be detected can be rotated by a certain angle by the first driving device and/or the second driving device, and after the microphone to be detected is rotated by a certain angle, the focal length of the detection camera is adjusted again, and the specific adjustment method is as described above, and is not repeated again.

And 203, acquiring a second image of the microphone to be detected in the sound inlet after rotation.

When the focal length of the detection camera is adjusted and the focusing is finished, the second image in the sound inlet of the microphone to be detected after the rotation is acquired through the detection camera, compared with the first image, the acquired second image can comprise a view of the hole wall or the bottom edge of the sound inlet of the microphone to be detected, and is used for detecting whether impurities exist in the hole wall or the bottom edge of the sound inlet of the microphone to be detected.

And 204, analyzing the first image and the second image, and judging whether foreign matters exist in the sound inlet hole of the microphone to be detected.

The first image and the second image may be analyzed by image processing techniques, wherein the image processing techniques may include: the image gray scale algorithm and/or the image edge algorithm can judge whether the foreign matter exists in the sound inlet hole of the microphone to be detected or not through the image gray scale algorithm due to the fact that the gray scales of the foreign matter which can enter the sound inlet hole are different, and can judge whether the foreign matter exists in the sound inlet hole of the microphone to be detected or not through the image edge algorithm due to the fact that the difference between the edge pixel of the foreign matter and the edge pixel of the view in the sound inlet hole is large.

It is to be understood that the first image and the second image may be analyzed by other image processing techniques, and the embodiment of the present application is not limited to the type of the image processing technique.

An embodiment of the present invention further provides a microphone detection method, and specifically, please refer to fig. 9, where fig. 9 is a second flowchart of the microphone detection method, including:

301, a first image of a microphone to be tested in a tone hole is obtained.

The first image of the microphone to be tested in the sound inlet can be obtained by the method in step 201, which is not described herein again.

302, the microphone to be tested is rotated to rotate the microphone to be tested by a first angle along the second direction.

The microphone to be detected may be rotated by a first angle along a second direction through the second driving device, where the second direction may be the X-axis direction described above, for example, the first image is an image of a hole bottom of a sound inlet hole of the microphone to be detected, which is obtained by the optical detection device, and the microphone to be detected is at an initial position at this time, when the microphone to be detected is rotated by a certain angle along the X-axis direction (horizontal direction) through the second driving device, for example, when the microphone to be detected is rotated by 10 °, the microphone to be detected is rotated and tilted by 10 °, and since the position of the optical detection device in the horizontal direction is unchanged, the optical detection device may detect an image of a hole wall of the microphone to be detected, where an image range of the hole wall depends on a range of the rotation.

303, acquiring a second image of the rotated microphone to be detected in the sound inlet.

And adjusting the focal length of the detection camera again, focusing the sound inlet hole of the rotated microphone to be detected, acquiring a second image in the sound inlet hole of the rotated microphone to be detected through the detection camera, comparing the second image with the first image, and acquiring the second image which comprises a view of the hole wall of the sound inlet hole of the part of the microphone to be detected and/or the bottom edge of the hole of the part of the sound inlet hole, wherein the view is used for detecting whether impurities exist on the hole wall or the bottom edge of the sound inlet hole of the microphone to be detected.

304, the microphone to be tested is rotated to rotate the microphone to be tested by a second angle along the first direction.

Because the second image only comprises the view of part of the hole wall or the bottom edge of the hole, the microphone to be tested needs to be driven again to acquire the view image of the whole hole wall and/or the whole bottom edge of the hole, the microphone to be tested can be rotated by a second angle in the first direction by the first driving device, the first direction may be the Z-axis direction, for example, the second image is an image of a part of the hole wall and/or a part of the bottom edge of the hole of the microphone to be tested, which is obtained by the optical detection device, when the microphone to be tested is at a position horizontally inclined by 10 degrees, when the microphone to be tested is rotated by a certain angle along the Z-axis direction (vertical direction) through the second driving device, for example, the microphone to be tested is rotated by 10 degrees along the vertical direction, images of other parts of the hole wall and/or other parts of the bottom edge of the hole of the microphone to be tested can be acquired.

And 305, acquiring a third image of the rotated microphone to be tested in the sound hole.

And adjusting the focal length of the detection camera again, focusing the sound inlet hole of the rotated microphone to be detected, acquiring a third image in the sound inlet hole of the rotated microphone to be detected through the detection camera, comparing the third image with the second image, and acquiring the third image which comprises views of the hole wall of the sound inlet hole of other parts of the microphone to be detected and/or the edge of the hole bottom of the sound inlet hole of other parts of the microphone to be detected and is used for detecting whether impurities exist in the hole wall or the edge of the hole bottom of the sound inlet hole of the microphone to be detected.

It can be understood that, if a complete image of the hole wall and/or the hole bottom edge needs to be acquired, the position of the microphone to be measured in the horizontal or vertical direction can be adjusted for many times by the cooperation of the first driving device and the second driving device.

And 306, analyzing the first image, the second image and the third image to judge whether foreign matters exist in the sound inlet hole of the microphone to be detected.

The first image, the second image and the third image may be analyzed by an image processing technique, wherein the image processing technique may include: the image gray scale algorithm and/or the image edge algorithm can judge whether the foreign matter exists in the sound inlet hole of the microphone to be detected or not through the image gray scale algorithm due to the fact that the gray scales of the foreign matter which can enter the sound inlet hole are different, and can judge whether the foreign matter exists in the sound inlet hole of the microphone to be detected or not through the image edge algorithm due to the fact that the difference between the edge pixel of the foreign matter and the edge pixel of the view in the sound inlet hole is large.

In some embodiments, in order to avoid that the acquired image is unclear and affects analysis of foreign matters in the sound inlet hole of the microphone to be analyzed, the acquired first image, second image or third image may be a multi-frame image, the multi-frame image is subjected to definition analysis, an image with the highest definition is acquired from the multi-frame image and serves as an image to be analyzed, a target image with the definition reaching a threshold value may also be acquired from the multi-frame image, and the target image with the definition reaching the threshold value is subjected to image synthesis to obtain the image to be analyzed.

In some embodiments, in order to avoid that the acquired image is unclear and affects analysis of foreign matters in the sound inlet hole of the microphone to be detected, the real-time preview image is acquired through the detection camera, the sound inlet hole of the microphone to be detected is focused, after focusing is finished, image information in the real-time preview image is analyzed, and if the image information meets a preset condition, namely, after the definition meets the condition, the image in the sound inlet hole of the microphone to be detected is acquired.

In some embodiments, an embodiment of the present application further provides a microphone detection device, which specifically includes:

the first acquisition module is used for acquiring a first image in a sound inlet of a microphone to be detected;

the first rotation module is used for rotating the microphone to be tested to enable the microphone to be tested to rotate by a first angle;

the second acquisition module is used for acquiring a second image in the rotated microphone sound inlet to be detected;

and the analysis module is used for analyzing the first image and the second image and judging whether foreign matters exist in the sound inlet hole of the microphone to be detected or not.

In some embodiments, the first rotation module is further configured to: rotating the microphone to be tested to enable the microphone to be tested to rotate by the first angle along a second direction;

the microphone detection device further comprises a second rotation module and a third acquisition module, wherein:

the second rotation module is used for rotating the microphone to be tested to enable the microphone to be tested to rotate by the second angle along the first direction;

the third acquisition module is used for acquiring a third image in the rotated microphone sound inlet to be detected;

the analysis module is further configured to analyze the first image, the second image, and the third image.

In some embodiments, the microphone detection apparatus in the embodiments of the present application further includes a first focus module and a second focus module, wherein:

and the first focusing module is used for focusing the sound inlet hole of the microphone to be detected before the first image in the sound inlet hole of the microphone to be detected is acquired.

And the second focusing module is used for focusing the sound inlet hole of the microphone to be detected before the second image in the sound inlet hole of the microphone to be detected is acquired.

It should be noted that the microphone detection apparatus provided in the embodiment of the present application and the microphone detection device method in the foregoing embodiments belong to the same concept, and any method provided in the microphone detection method embodiment may be operated on the microphone-based detection apparatus, and a specific implementation process thereof is described in detail in the microphone detection method embodiment, and is not described herein again.

The embodiment of the application further provides another microphone detection device, which may include a processor and a memory, wherein the processor is electrically connected to the memory. The processor may be a control center of the microphone detection apparatus, connects various parts of the entire microphone detection apparatus using various interfaces and lines, and performs various functions of the microphone detection apparatus and processes data by running or calling a computer program stored in the memory and calling data stored in the memory, thereby performing overall monitoring of the microphone detection apparatus.

The memory may be used to store computer programs and data. The memory stores a computer program having instructions embodied therein that are executable in the processor. The computer program may constitute various functional modules. The processor executes various functional applications and data processing by calling the computer program stored in the memory.

In the embodiment of the present application, a processor in the microphone detection device loads instructions corresponding to one or more computer program processes into a memory according to the following steps, and the processor executes the computer program stored in the memory, so as to implement various functions:

acquiring a first image in a sound inlet of a microphone to be detected;

rotating the microphone to be tested to enable the microphone to be tested to rotate by a first angle;

acquiring a second image of the rotated microphone to be detected in the sound inlet;

and analyzing the first image and the second image to judge whether foreign matters exist in the sound inlet hole of the microphone to be detected.

In some embodiments, the hole detection device may further include a radio frequency circuit, a display screen, a control circuit, an input unit, an audio circuit, a touch circuit, and a power source. The processor is electrically connected with the radio frequency circuit, the display screen, the control circuit, the input unit, the audio circuit, the touch circuit and the power supply respectively.

The radio frequency circuit is used for receiving and transmitting radio frequency signals, so as to exchange data with network equipment or other electronic equipment through wireless communication, for example, the acquired image can be sent to external equipment, and the acquired image is analyzed through the external equipment.

The display screen may be used to display information input by or provided to the user as well as various graphical user interfaces of the microphone detection device, which may be composed of images, text, icons, video, and any combination thereof. The display screen can with touch-control circuit electric connection, touch-control circuit can receive the touch-control signal that the user received through the display screen, can be through the display screen with the result display to the interior foreign matter analysis of microphone sound inlet that awaits measuring.

The control circuit is electrically connected with the display screen and is used for controlling the display screen to display information.

The input unit may be used to receive input numbers, character information or user characteristic information (e.g., fingerprint), and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

The audio circuitry may provide an audio interface between the user and the microphone detection device through a speaker, microphone. Wherein the audio circuit comprises a microphone. The microphone is electrically connected with the processor. The microphone is used for receiving voice information input by a user, and for example, the driving device can be started through voice operation, so that the convenience of operation of the microphone detection equipment is improved.

The power supply is used for supplying power to various parts of the microphone detection device. In some embodiments, the power supply may be logically connected to the processor through a power management system, such that the power management system may manage charging, discharging, and power consumption management functions.

The microphone detection device can also be a Bluetooth module and the like, which are not described in detail herein.

The embodiment of the present application further provides a storage medium, in which a computer program is stored, and when the computer program runs on a processor, the processor executes the microphone detection method in any of the above embodiments.

It should be noted that, all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, which may include, but is not limited to: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.

The microphone detection device and the microphone detection method provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.