Light sensation type in-ear detection device

Abstract

The utility model discloses a light sensation type in-ear detection device which comprises an industrial personal computer and a shielding box in communication connection with the industrial personal computer, a moving assembly, a clamping assembly, a control panel and a Bluetooth communication adapter are sequentially arranged in the shielding box, and the clamping assembly is arranged between the moving assembly and the front portion of the shielding box. The moving assembly comprises a first moving unit and a second moving unit which are oppositely arranged, the first moving unit is provided with a first grey card, the second moving unit is provided with a second grey card, the first grey card and the second grey card correspond to the earphone in position, the industrial personal computer control panel is electrically connected, and the Bluetooth communication adapter is in communication connection with the industrial personal computer and the earphone. The whole detection operation process is simple and easy to implement, the automation degree is high, different clamping assemblies can be replaced, and the device can be suitable for clamping different earphones so as to meet the test requirements of the different earphones.

Description

Technical Field

[0001] The utility model relates to the technical field of earphone in-ear detection, in particular to a light-sensing in-ear detection device. Background Art

[0002] In-ear detection, also known as wearing detection, is a key feature of headphones. When putting on or taking off headphones, the system immediately detects their current usage and, based on the detection, pauses or resumes playback to prevent audio from being missed. This feature improves the user experience and, in headphone applications, optimizes battery life and extends battery life.

[0003] The existing testing method is performed manually, which is complicated, costly, and inefficient, and cannot meet the testing needs of different products. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a light-sensing in-ear detection device to address the problems in the existing technology such as complex operation, high testing cost, low efficiency, and inability to meet the testing requirements of different products.

[0005] A light-sensing in-ear detection device includes an industrial computer and a shielding box communicatively connected to the industrial computer, wherein a moving component, a clamping component, a control panel and a Bluetooth communication adapter are sequentially arranged in the shielding box, wherein the moving component includes a first moving unit and a second moving unit arranged relatively to each other, the first moving unit is provided with a first gray card, the second moving unit is provided with a second gray card, the first moving unit is used to change the relative position of the first gray card, and the second moving unit is used to change the relative position of the second gray card, the clamping component is arranged between the moving component and the front of the shielding box, the clamping component is used to clamp the earphone, the first gray card and the second gray card correspond to the positions of the earphone, the first gray card and the second gray card are used to reflect the light emitted by the earphone, the control panel is used to control the moving component, the industrial computer is electrically connected to the control panel, and the Bluetooth communication adapter is communicatively connected to the industrial computer and the earphone respectively.

[0006] Beneficial effects of the utility model:

[0007] The earphones are placed on the clamping assembly, the shielding box is closed and the test is started. The industrial computer is connected to the earphones through a Bluetooth communication adapter, and the industrial computer sends a test instruction to activate the earphones. The industrial computer then sends a preset program drive instruction to the control board. The control board controls the movement of the first movable unit, thereby driving the first gray card to move above the earphones. The light emitted by the transmitting end of the earphones is reflected back to the receiving end of the earphones by the first gray card, and the reflected light is uploaded to the industrial computer via the Bluetooth communication adapter as the first result. The control board then controls the movement of the second movable unit to complete the same spatial positioning. The light emitted by the transmitting end of the earphones is reflected back to the receiving end of the earphones by the second gray card, and the reflected light is uploaded to the industrial computer via the Bluetooth communication adapter as the second result. The industrial computer completes the in-ear test process based on the first result and the second result. The entire test operation process is simple and easy, with a high degree of automation, which improves production efficiency. The shielding box is used to shield interference signals to ensure a reliable connection between the earphones to be tested and the Bluetooth communication adapter. By replacing different clamping assemblies, it can be suitable for clamping different earphones to meet the testing requirements of different earphones.

[0008] Furthermore, the first movable unit includes a first vertical mechanism and a first horizontal mechanism, the first vertical mechanism includes a first cylinder, a plurality of first linear bearings and a first connecting plate, the first cylinder and the first linear bearing are arranged on the inner wall of the shielding box, and the first linear bearing is arranged on the peripheral side of the first cylinder, the output end of the first cylinder and the output end of the first linear bearing are respectively connected to the bottom surface of the first connecting plate, the first horizontal mechanism includes a second cylinder and a first connecting block arranged on the top surface of the first connecting plate, the output end of the second cylinder is connected to the first connecting block, and the end of the first connecting block facing away from the second cylinder is disassembled and connected to the first gray card.

[0009] Furthermore, the top surface of the first connecting plate is partially raised to form two first protrusions, and a first slide rail for disassembly connection is provided on part of the first protrusions. First sliders are provided on opposite sides of the second cylinder, and the first sliders are connected to a side of the first connecting block away from the first gray card, and the first slide rails are adapted to the first sliders.

[0010] Furthermore, the second moving unit includes a second vertical mechanism and a second horizontal mechanism, the second vertical mechanism includes a third cylinder, a support plate, a plurality of second linear bearings and a second connecting plate, the support plate is connected to the inner wall of the shielding box, the third cylinder and the second linear bearing are respectively arranged on the top surface of the support plate, and the second linear bearing is located on the circumferential side of the third cylinder, the output end of the third cylinder and the output end of the second linear bearing respectively pass through the second connecting plate, and the output end of the third cylinder and the output end of the second linear bearing are respectively connected to the top of the second connecting plate, the second horizontal mechanism includes a fourth cylinder and a second connecting block, the fourth cylinder and the second connecting block are arranged on the bottom surface of the second connecting plate, the output end of the fourth cylinder is connected to the second connecting block, and the end of the second connecting block facing away from the fourth cylinder is disassembled and connected to the second gray card.

[0011] Furthermore, the bottom surface of the second connecting plate is partially raised to form two second protrusions, and a second slide rail for disassembly and connection is provided on a side of the second protrusion facing away from the second connecting plate. Second sliders are provided on opposite sides of the fourth cylinder, and the second sliders are connected to a side of the second connecting block away from the second gray card, and the second slide rails are adapted to the second sliders.

[0012] Furthermore, the clamping assembly includes a second base, a fixed base and a fixed cover. The second base is arranged between the inner wall of the shielding box and the first linear bearing. The second base is provided with a detachably connected fixed base. The fixed base is used to place the earphones. The fixed base is provided with a movably connected fixed cover. The fixed cover is provided with a hollow portion, and the hollow portion corresponds to the light output position of the earphones.

[0013] Furthermore, the shielding box includes a box body and an upper cover movably connected to the box body. Optical gratings are provided on two opposite sides of the box body, and the optical gratings are used to detect whether the upper cover and the box body are covered.

[0014] Furthermore, a start button, a stop button, a power indicator light and a start / stop button are sequentially provided on the front of the box body, and the start button, the stop button, the power indicator light and the start / stop button are all electrically connected to the control panel.

[0015] Furthermore, a power switch and a communication interface are provided at the rear of the box body. The communication interface is electrically connected to the industrial computer and the control board respectively, and the power switch is electrically connected to the control board.

[0016] Furthermore, a partition plate is provided in the box body to divide the box body space, the control board is connected to the bottom of the box body, and the control board and the moving component, the clamping component, and the Bluetooth communication adapter are respectively arranged on opposite sides of the partition plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic structural diagram of the optical in-ear detection device of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the detection box of the utility model Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the structure of the detection box of the utility model Figure 2 ;

[0021] Figure 4 It is a front view of the first movable unit of the present invention;

[0022] Figure 5 It is a rear view of the first movable unit of the present invention;

[0023] Figure 6 It is a front view of the second mobile unit of the present invention;

[0024] Figure 7 It is a rear view of the second mobile unit of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the clamping assembly of the present utility model.

[0026] In the figure: 1. Industrial computer; 2. Shielding box; 21. Box body; 211. Grating; 212. Start button; 213. Stop button; 214. Power indicator light; 215. Start / Stop button; 216. Power switch; 217. Communication interface; 218. Partition plate; 22. Upper cover; 23. Side plate; 24. Retracting rod; 3. Moving assembly; 31. First moving unit; 311. First vertical mechanism; 3111. First cylinder; 3112. First linear bearing; 3113. First connecting plate; 31131. First protrusion; 3114. First base; 312. First horizontal mechanism; 3121. Second cylinder; 3122. First connecting plate Block; 313, first gray card; 314, first slide rail; 315, first slider; 32, second moving unit; 321, second vertical mechanism; 3211, third cylinder; 3212, support plate; 3213, second linear bearing; 3214, second connecting plate; 32141, second convex portion; 322, second horizontal mechanism; 3221, fourth cylinder; 3222, second connecting block; 323, second gray card; 324, second slide rail; 325, second slider; 33, fixing plate; 4, clamping assembly; 41, second base; 42, fixing seat; 43, fixing cover; 431, hollow portion; 5, control panel; 6, Bluetooth communication adapter; 7, earphones. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0030] A light-sensing in-ear detection device, such as Figure 1 As shown, it includes an industrial computer 1 and a shielding box 2 connected to the industrial computer 1 for communication. In this embodiment, the industrial computer 1 and the shielding box 2 are connected via a serial port. The device is used to simulate the in-ear performance detection of the earphone 7.

[0031] Specifically, such as Figure 2-Figure 8 As shown, since the production line detects multiple headphones 7 at the same time, a shielding box 2 is used to ensure a reliable connection between the headphones 7 in the shielding box 2 and the Bluetooth communication adapter 6 in the shielding box 2. The shielding box 2 is provided with a moving component 3, a clamping component 4, a control board 5 and a Bluetooth communication adapter 6 in sequence. The clamping component 4 is arranged between the moving component 3 and the front of the shielding box 2. The clamping component 4 is used to clamp the headphones 7. The control board 5 is used to control the moving component 3. The industrial computer 1 is electrically connected to the control board 5. The Bluetooth communication adapter 6 is communicatively connected to the industrial computer 1 and the headphones 7 respectively.

[0032] Specifically, the moving assembly 3 includes a first moving unit 31 and a second moving unit 32 that are arranged opposite to each other. The second moving unit 32 is arranged above the first moving unit 31. The first moving unit 31 and the second moving unit 32 are independently arranged without interfering with each other.

[0033] Specifically, such as Figure 4 and Figure 5 As shown, the first moving unit 31 is used to change the relative position of the first gray card 313. The first moving unit 31 includes a first vertical mechanism 311 and a first horizontal mechanism 312. The first vertical mechanism 311 includes a first cylinder 3111, a plurality of first linear bearings 3112 and a first connecting plate 3113. The first cylinder 3111 and the first linear bearings 3112 are connected to the fixed plate 33 through a first base 3114. The first linear bearings 3112 are provided on the peripheral side of the first cylinder 3111. The fixed plate 33 is provided on the partition plate 218. The output end of the first linear bearing 3112 is connected to the bottom surface of the first connecting plate 3113 respectively. The industrial computer 1 controls the control board 5 to control the movement of the first cylinder 3111. The first cylinder 3111 drives the first connecting plate 3113 in the vertical direction to change the relative height of the first connecting plate 3113. The first linear bearing 3112 provided on the peripheral side of the first cylinder 3111 enables the first connecting plate 3113 to maintain linear movement. The first movable unit 31 and the second movable unit 32 are provided on the fixed plate 33 for easy installation and replacement.

[0034] Specifically, the first horizontal mechanism 312 includes a second cylinder 3121 and a first connecting block 3122 provided on the top surface of the first connecting plate 3113. The output end of the second cylinder 3121 is connected to the first connecting block 3122. The end of the first connecting block 3122 facing away from the second cylinder 3121 is screwed to the first gray card 313. The first gray card 313 is used to reflect the light emitted by the earphone 7. The industrial computer 1 controls the control board 5 to control the movement of the second cylinder 3121. The second cylinder 3121 drives the first connecting block 3122 in the horizontal direction to change the horizontal position of the first connecting block 3122, so that the relative position of the first gray card 313 connected to the first connecting block 3122 is also changed. When the first gray card 313 is extended and located directly above the earphone 7, the light emitted by the transmitting end of the earphone 7 reflects the first gray card 313 to the receiving end of the earphone 7.

[0035] When the cam 3122 is in the unlocking state, the cam 3123 is unlocked and the lock 314 is unlocked, so that the cam 3123 is unlocked.

[0036] Specifically, such as Figure 6 and Figure 7As shown, the second moving unit 32 is used to change the relative position of the second gray card 323. The second moving unit 32 includes a second vertical mechanism 321 and a second horizontal mechanism 322. The second vertical mechanism 321 includes a third cylinder 3211, a support plate 3212, a plurality of second linear bearings 3213 and a second connecting plate 3214. The two opposite sides of the support plate 3212 are connected to the fixed plate 33. The third cylinder 3211 and the second linear bearing 3213 are respectively provided on the top surface of the support plate 3212, and the second linear bearing 3213 is located on the peripheral side of the third cylinder 3211. The output end of the third cylinder 3211 and the second linear bearing 3213 are respectively provided. The output ends of 13 pass through the second connecting plate 3214 respectively, and the output ends of the third cylinder 3211 and the output ends of the second linear bearing 3213 are respectively connected to the top of the second connecting plate 3214, and the support plate 3212 supports the third cylinder 3211 and the second linear bearing 3213. The industrial computer 1 controls the control board 5 to control the movement of the third cylinder 3211. The third cylinder 3211 transmits the second connecting plate 3214 in the vertical direction to change the relative height of the second connecting plate 3214. The second linear bearing 3213 provided on the peripheral side of the third cylinder 3211 enables the second connecting plate 3214 to maintain linear movement.

[0037] Specifically, the second horizontal mechanism 322 includes a fourth cylinder 3221 and a second connecting block 3222. The fourth cylinder 3221 and the second connecting block 3222 are arranged on the bottom surface of the second connecting plate 3214. The output end of the fourth cylinder 3221 is connected to the second connecting block 3222. The end of the second connecting block 3222 facing away from the fourth cylinder 3221 is screwed to the second gray card 323. The industrial computer 1 is used to control the control board 5 to control the movement of the fourth cylinder 3221. The fourth cylinder 3221 transmits the second connecting block 3222 in the horizontal direction to change the horizontal position of the second connecting block 3222, so that the relative position of the second gray card 323 connected to the second connecting block 3222 is also changed. When the second gray card 323 is extended and is directly above the earphone 7, the light emitted by the transmitting end of the earphone 7 reflects the second gray card 323 to the receiving end of the earphone 7.

[0038] When the cam 324 is in the unlock state, the second stop 321 is unlocked, and the lock 322 is unlocked, so that the cam 324 can be unlocked.

[0039] Specifically, such as Figure 8 As shown, the clamping assembly 4 includes a second base 41, a fixing base 42 and a fixing cover 43. The second base 41 is screwed to the fixing plate 33, and the second base 41 is arranged between the inner wall of the shielding box 2 and the first base 3114. The second base 41 is provided with a screwed fixing base 42, and the fixing base 42 is used to place the earphone 7. The fixing base 42 is provided with a rotatably connected fixing cover 43, and the fixing cover 43 is provided with a hollow portion 431, which corresponds to the light emitting position of the earphone 7. The earphone 7 is placed on the fixing base 42, and the fixing cover 43 is flipped over to cover the fixing base 42. At this time, the light emitting position of the earphone 7 is in the hollow portion 431. For different types of earphones 7, different fixing bases 42 can be replaced to adapt to the earphone 7.

[0040] Specifically, the shielding box 2 includes a box body 21 and an upper cover 22 telescopically connected to the box body 21 through a retractable rod 24. A grating 211 and a side panel 23 are provided on opposite sides of the box body 21. The grating 211 is used to detect whether the upper cover 22 and the box body 21 are covered. After the grating 211 detects and ensures that the upper cover 22 and the box body 21 are completely covered, an enclosed space is formed inside the box, which effectively isolates external interference such as electromagnetic waves, dust, and moisture. The side panel 23 can be used to increase the reliable connection between the box body 21 and the upper cover 22.

[0041] Specifically, a start button 212, a stop button 213, a power indicator light 214 and a start / stop button 215 are provided on the front of the box body 21 in sequence. The start button 212, the stop button 213, the power indicator light 214 and the start / stop button 215 are all electrically connected to the control panel 5. In order to avoid operator misoperation, the start button 212 and the start / stop button 215 are associated and pressed at the same time to perform detection to avoid misoperation. In case of emergency, the stop button 213 can be pressed to stop operation, and the power supply status is displayed by the power indicator light 214.

[0042] Specifically, a power switch 216 and a communication interface 217 are provided at the rear of the box body 21. The communication interface 217 is electrically connected to the industrial computer 1 and the control board 5 respectively. The power switch 216 is electrically connected to the control board 5. The power switch 216 is turned to connect or interrupt the access of the external power supply. The communication interface 217 enables the industrial computer 1 to communicate with the control board 5.

[0043] Specifically, a partition plate 218 is provided in the box body 21 to divide the space of the box body 21. The control board 5 is connected to the bottom of the box body 21 and is located below the partition plate 218. The moving component 3, the clamping component 4 and the Bluetooth communication adapter 6 are all arranged on the partition plate 218. The partition plate 218 is used to separate the control board 5 from the moving component 3, the clamping component 4 and the Bluetooth communication adapter 6 to shield the signal interference of the public control board to the Bluetooth communication adapter 6.

[0044] When preparing to detect the earphone 7, place the earphone 7 on the fixing seat 42, then close the fixing cover 43, turn on the external power supply through the power switch 216, press the start button 212 and the start / stop button 215 at the same time, and the upper cover 22 closes the box body 21. At this time, when the grating 211 detects that it is not completely covered, it will immediately feedback to the control board 5, and the upper cover 22 is opened. When the grating 211 detects that it is completely covered, the detection is started, and the industrial computer 1 is connected to the earphone 7 through the Bluetooth communication adapter 6. The industrial computer 1 sends a detection instruction to activate the earphone 7, and then uses the industrial computer 1 to send a preset program drive instruction to the control board 5. The control board 5 controls the first moving unit 31 to move, thereby transmitting the first gray The card 313 moves to the top of the earphone 7, which includes movement in the vertical and horizontal directions, which will not be repeated here. The light emitted by the transmitting end of the earphone 7 is reflected back to the receiving end of the earphone 7 by the first gray card 313, and then uploaded to the industrial computer 1 through the Bluetooth communication adapter 6 for analysis and storage. Then the control board 5 controls the movement of the second mobile unit 32 to complete the same spatial positioning. The light emitted by the transmitting end of the earphone 7 is reflected back to the receiving end of the earphone 7 by the second gray card 323, and then uploaded to the industrial computer 1 through the Bluetooth communication adapter 6 for analysis and storage to complete the in-ear detection process. During the detection process, if an emergency occurs, the stop button 213 can be pressed to stop the operation.

[0045] The utility model has the advantages of being simple and easy to operate, with a high degree of automation, thus improving production efficiency. The shielding box 2 is used to shield interference signals, thereby ensuring a reliable connection between the earphone 7 to be tested and the Bluetooth communication adapter 6 in the shielding box 2. By replacing different fixing seats 42, different earphones 7 can be clamped to meet the testing requirements of different earphones 7.

[0046] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A light-sensing in-ear detection device, characterized by: It includes an industrial computer and a shielding box communicatively connected to the industrial computer, wherein a moving component, a clamping component, a control panel and a Bluetooth communication adapter are sequentially arranged in the shielding box, wherein the moving component includes a first moving unit and a second moving unit arranged relatively to each other, the first moving unit is provided with a first gray card, the second moving unit is provided with a second gray card, the first moving unit is used to change the relative position of the first gray card, the second moving unit is used to change the relative position of the second gray card, the clamping component is arranged between the moving component and the front of the shielding box, the clamping component is used to clamp the earphone, the first gray card and the second gray card correspond to the position of the earphone, the first gray card and the second gray card are used to reflect the light emitted by the earphone, the control panel is used to control the moving component, the industrial computer is electrically connected to the control panel, and the Bluetooth communication adapter is communicatively connected to the industrial computer and the earphone respectively.

2. The optical in-ear detection device according to claim 1, wherein: The first movable unit includes a first vertical mechanism and a first horizontal mechanism, the first vertical mechanism includes a first cylinder, a plurality of first linear bearings and a first connecting plate, the first cylinder and the first linear bearing are arranged on the inner wall of the shielding box, and the first linear bearing is arranged on the peripheral side of the first cylinder, the output end of the first cylinder and the output end of the first linear bearing are respectively connected to the bottom surface of the first connecting plate, the first horizontal mechanism includes a second cylinder and a first connecting block arranged on the top surface of the first connecting plate, the output end of the second cylinder is connected to the first connecting block, and the end of the first connecting block facing away from the second cylinder is disassembled and connected to the first gray card.

3. The optical in-ear detection device according to claim 2, wherein: The top surface of the first connecting plate is partially raised to form two first protrusions, and a first slide rail for disassembly connection is provided on part of the first protrusions. First sliders are provided on opposite sides of the second cylinder, and the first sliders are connected to a side of the first connecting block away from the first gray card, and the first slide rails are adapted to the first sliders.

4. The optical in-ear detection device according to claim 1, wherein: The second moving unit includes a second vertical mechanism and a second horizontal mechanism, the second vertical mechanism includes a third cylinder, a support plate, a plurality of second linear bearings and a second connecting plate, the support plate is connected to the inner wall of the shielding box, the third cylinder and the second linear bearing are respectively arranged on the top surface of the support plate, and the second linear bearing is located on the circumferential side of the third cylinder, the output end of the third cylinder and the output end of the second linear bearing respectively pass through the second connecting plate, and the output end of the third cylinder and the output end of the second linear bearing are respectively connected to the top of the second connecting plate, the second horizontal mechanism includes a fourth cylinder and a second connecting block, the fourth cylinder and the second connecting block are arranged on the bottom surface of the second connecting plate, the output end of the fourth cylinder is connected to the second connecting block, and the end of the second connecting block facing away from the fourth cylinder is disassembled and connected to the second gray card.

5. The optical in-ear detection device according to claim 4, wherein: The bottom surface of the second connecting plate is partially raised to form two second protrusions, and a second slide rail for disassembly and connection is provided on the side of the second protrusion facing away from the second connecting plate. Second sliders are provided on the opposite sides of the fourth cylinder, and the second sliders are connected to the side of the second connecting block away from the second gray card, and the second slide rails are adapted to the second sliders.

6. The optical in-ear detection device according to claim 2, wherein: The clamping assembly includes a second base, a fixing seat and a fixing cover. The second base is arranged between the inner wall of the shielding box and the first linear bearing. The second base is provided with a detachable fixing seat. The fixing seat is used to place the earphones. The fixing seat is provided with a movably connected fixing cover. The fixing cover is provided with a hollow portion, and the hollow portion corresponds to the light output position of the earphones.

7. The optical in-ear detection device according to claim 1, wherein: The shielding box includes a box body and an upper cover movably connected to the box body. Optical gratings are provided on opposite sides of the box body, and the optical gratings are used to detect whether the upper cover and the box body are covered.

8. The optical in-ear detection device according to claim 7, wherein: A start button, a stop button, a power indicator light and a start / stop button are sequentially arranged on the front of the box body. The start button, the stop button, the power indicator light and the start / stop button are all electrically connected to the control panel.

9. The optical in-ear detection device according to claim 7, wherein: A power switch and a communication interface are provided at the rear of the box body. The communication interface is electrically connected to the industrial computer and the control board respectively, and the power switch is electrically connected to the control board.

10. The optical in-ear detection device according to claim 7, wherein: A partition plate is provided in the box body for dividing the box body space, and the control panel and the moving component, the clamping component, and the Bluetooth communication adapter are respectively arranged on two opposite sides of the partition plate.

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