Acoustic testing equipment and methods for smart glasses

Abstract

This invention discloses an acoustic testing device and method for smart glasses. The device includes a carrier, a hole-blocking device, a glasses sound acquisition component, a test sound source component, and a sound source sound acquisition component. The carrier includes a carrier for fixing the smart glasses. The hole-blocking device includes a hole-blocking driving mechanism and a hole-blocking component. The hole-blocking driving mechanism drives the hole-blocking component to block the sound playback opening and the sound receiving opening. The glasses sound acquisition component is used to acquire the test sound played by the sound playback device in both the hole-blocking and unblocking states. The sound source sound acquisition component is used to receive the first sound source test sound emitted by the test sound source component. The test sound source component emits a second sound source test sound, so that the sound receiving device receives the second sound source test sound in both the hole-blocking and unblocking states. The acoustic testing device for smart glasses of this invention can eliminate environmental interference, accurately determine the acoustic performance of smart glasses, and evaluate their airtightness.

Description

Technical Field

[0001] This invention relates to the field of smart glasses testing, and in particular to a smart glasses acoustic testing device and testing method. Background Technology

[0002] With the development of technology, smart glasses, as a new type of portable smart product, are becoming increasingly widely used. After production, smart glasses need to undergo acoustic testing to ensure their quality before leaving the factory. Existing acoustic testing equipment for smart glasses typically involves the smart glasses playing sound, the equipment collecting the sound and judging its playback performance, and then the test sound source directly playing test sound, which the smart glasses receive and judge their sound reception performance. However, this simple method is prone to errors due to environmental factors, variations in the position of the glasses' sound receiver relative to the test sound source, and a lack of consideration for the airtightness of the smart glasses' acoustic structure. Furthermore, for some smart glasses that perform normally during testing but have poor airtightness, in actual use, the smart glasses may be in motion, and the outside airflow speed may be greater than that of the equipment enclosure. In such cases, outside air can easily enter and exit through the poorly airtight areas (gap) of the smart glasses, generating additional noise and affecting their acoustic performance. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an acoustic testing device for smart glasses, which can minimize environmental interference, accurately determine the sound receiving performance of smart glasses, and evaluate the airtightness of smart glasses.

[0004] The present invention also proposes a testing method using the aforementioned acoustic testing equipment for smart glasses.

[0005] According to a first aspect of the present invention, an acoustic testing device for smart glasses is used to test smart glasses. The smart glasses are provided with a sound playback device and a sound receiving device. The sound playback device is used to emit sound to the outside world through a sound playback opening on the smart glasses, and the sound receiving device is used to receive sound from the outside world through a sound receiving opening on the smart glasses. The acoustic testing device for smart glasses includes: a carrier device including a carrier for fixing the smart glasses; and a hole-blocking device including a hole-blocking driving mechanism and a hole-blocking component. The hole-blocking driving mechanism is tractively connected to the hole-blocking component and is used to drive the hole-blocking component to block the sound playback opening and the sound receiving opening, so that the smart glasses are in a hole-blocking state. When the hole-blocking component does not block the sound playback opening and the sound receiving opening, the smart glasses... The smart glasses are in an unblocked state; a glasses sound acquisition device is used to acquire the glasses test sound played by the sound playback device in both the blocked and unblocked states; a test sound source device; a sound source acquisition device; when the smart glasses are fixed to the carrier, the sound receiving opening of the smart glasses is located in a first position; when the smart glasses are not fixed to the carrier, the sound source acquisition device is movably disposed in the first position, and the sound source acquisition device in the first position is used to receive the first sound source test sound emitted by the test sound source device; when the smart glasses are fixed to the carrier, the sound source acquisition device is not in the first position, and the test sound source device is used to emit a second sound source test sound, so that the sound receiving device receives the second sound source test sound in both the blocked and unblocked states.

[0006] According to the first aspect of the present invention, the acoustic testing device for smart glasses has at least the following technical effects: The device, through the above-described configuration, on the one hand, by pre-collecting data at a first position using a sound source acquisition device, and then performing difference calculations based on this data in subsequent data analysis, can minimize the influence of environmental interference and the different positions of various sound receiving devices on the smart glasses relative to the test sound source device, thereby obtaining the true frequency response curve and sensitivity of the sound receiving device, correctly judging the sound receiving performance of the smart glasses, and ensuring the data consistency of the frequency response curve and sensitivity of various sound receiving devices on the smart glasses; on the other hand, by setting a plugging device, it can collect sound playback data and sound reception data under plugged conditions, thereby comparing and analyzing them with sound playback data and sound reception data under unplugged conditions, and thus evaluating the airtightness of the sound playback and reception related structures on the smart glasses.

[0007] According to some embodiments of the present invention, the hole-plugging device further includes a hole-plugging avoidance drive mechanism, which is throttle-connected to the hole-plugging drive mechanism.

[0008] According to some embodiments of the present invention, the vehicle device further includes a vehicle lifting mechanism, which is tractively connected to the vehicle; the glasses sound acquisition device includes a first glasses sound acquisition device and a second glasses sound acquisition device, the first glasses sound acquisition device being used to acquire a first glasses test sound played by the sound playback device in an unblocked state, and the second glasses sound acquisition device being used to acquire a second glasses test sound played by the sound playback device in a blocked state; the vehicle lifting mechanism is used to move the smart glasses on the vehicle toward the first glasses sound acquisition device, so that the sound playback opening is directly facing the first glasses sound acquisition device, and the vehicle lifting mechanism is also used to move the smart glasses on the vehicle toward the second glasses sound acquisition device.

[0009] According to some embodiments of the present invention, the hole-blocking device further includes a hole-blocking avoidance drive mechanism, which is tractively connected to the hole-blocking drive mechanism and the second glasses sound acquisition element.

[0010] According to some embodiments of the present invention, the vehicle device further includes a vehicle fixing mechanism, wherein the vehicle lifting mechanism is throttle connected to one side of the vehicle, and the vehicle fixing mechanism is used to clamp and fix the other side of the vehicle.

[0011] According to some embodiments of the present invention, the vehicle device further includes a vehicle moving mechanism, which is tractively connected to the vehicle.

[0012] According to some embodiments of the present invention, the smart glasses acoustic testing device further includes an auxiliary clamp for fixing the sound source acquisition component.

[0013] According to some embodiments of the present invention, the auxiliary clamp is a smart glasses conforming component, which corresponds to the smart glasses. A sound acquisition and installation opening is provided on the smart glasses conforming component, which corresponds to the sound receiving opening of the smart glasses. The sound acquisition and installation opening is used to install the sound source sound acquisition component.

[0014] According to some embodiments of the present invention, the carrier device further includes a plug-in drive mechanism and a carrier plug, the plug-in drive mechanism being tractively connected to the carrier plug, the carrier plug being used to insert into the interface of the smart glasses.

[0015] According to a test method based on a second aspect of the present invention, using the aforementioned acoustic testing equipment for smart glasses, the test method includes the following steps: The sound source acquisition device is placed at the first position of the vehicle. The test sound source device emits a first sound source test sound, and the sound source acquisition device acquires the first sound source test sound to form reference sound reception data. The sound source acquisition device is then removed from the first position of the vehicle. Secure the smart glasses to the vehicle; The smart glasses' sound playback device plays the glasses' test sound, and the glasses' sound acquisition device acquires the glasses' test sound to form sound playback data in an unblocked state. The test sound source component emits a second sound source test sound, and the sound receiving device of the smart glasses receives the second sound source test sound, forming sound reception data in the unblocked state. The hole-blocking drive mechanism drives the hole-blocking component to block the sound playback opening and the sound receiving opening of the smart glasses, so that the smart glasses are in a blocked state. The test sound source emits a second sound source test sound, and the sound receiving device receives the second sound source test sound in the blocked state, forming sound receiving data in the blocked state. The smart glasses' sound playback device plays glasses test sounds, and the glasses' sound acquisition device acquires the glasses test sounds in the blocked state, forming blocked state sound playback data. By comparing and analyzing the reference sound reception data, the sound reception data in the unblocked state, the sound reception data in the blocked state, the sound playback data in the unblocked state, and the sound playback data in the blocked state, the acoustic performance and airtightness of the smart glasses are evaluated.

[0016] According to the test method of the second aspect of the present invention, at least the following technical effects are achieved: the test method of the present invention can minimize the influence of environmental interference and the different positions of the sound receiving devices in various parts of the smart glasses relative to the test sound source, so as to correctly determine the sound receiving performance of the smart glasses; and can evaluate the airtightness of the sound playback and reception related structures on the smart glasses.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of the acoustic testing equipment for smart glasses according to an embodiment of the present invention; Figure 2 for Figure 1 A magnified view of point A on the acoustic testing equipment for the smart glasses shown; Figure 3 for Figure 1 Top view of the acoustic testing equipment for smart glasses shown; Figure 4 for Figure 1 The diagram shows the overall structure of the smart glasses acoustic testing equipment after removing some components. Figure 5 for Figure 4 A schematic diagram of the overall structure of the smart glasses acoustic testing equipment from another perspective. Figure 6 for Figure 5 A magnified view of point B on the acoustic testing equipment for the smart glasses shown. Figure 7 This is a schematic diagram of the structure of the smart glasses contouring component according to an embodiment of the present invention.

[0019] Figure label: Vehicle device 100, vehicle 110, vehicle lifting mechanism 120, vehicle fixing mechanism 130, vehicle fixing and avoidance mechanism 140, vehicle moving mechanism 150, vehicle moving drive assembly 151, vehicle moving slide rail 152, vehicle moving sliding seat 153, plug-in drive mechanism 161, vehicle plug 162. Hole plugging device 200, hole plugging drive mechanism 210, hole plugging component 220, hole plugging avoidance drive mechanism 230, hole plugging slide 240; First glasses sound acquisition device 310, second glasses sound acquisition device 320; Test sound source component 400; 500 sound source acquisition devices; Smart glasses contouring component 600, sound acquisition installation opening 610; Rack size 700. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "point," "inner," "outer," "axial," "radial," "circumferential," and "around," are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] In the description of this invention, "a plurality of" means two or more; "greater than," "less than," "exceeding," etc., are understood to exclude the number itself; and "above," "below," "within," etc., are understood to include the number itself. Where "first," "second," etc., are used, unless otherwise specified, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0023] In the description of this invention, it should be understood that "A is set on B" or "A is set on B" describes the connection or positional relationship between A and B, and does not mean that A is necessarily above B.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, movable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication of two components. In some embodiments, "bolted connection" and "screw connection" can be used interchangeably; in some embodiments, sidewall refers to the left sidewall and / or right sidewall. For those skilled in the art, the specific meaning of the above terms in this invention can be understood in conjunction with the specific circumstances. It should be understood that multiple similar features in this invention are only distinguished by different prefixes. Therefore, in this invention, the feature name without distinguishing prefix (or the feature name with a partial prefix) is used to represent the combination of similar features of this type. For example, "sound acquisition device" is used to represent the first glasses sound acquisition device 310, the second glasses sound acquisition device 320, and the sound source sound acquisition device 500.

[0025] It should be understood that the accompanying drawings of this invention... Figure 1 In the embodiment shown, a sound source acquisition device 500 is provided in the first position, and a hole-blocking device 200 in the hole-blocking state is also provided. The carrier 110 is also located above the middle of the device. Therefore, the structures of the hole-blocking device 200, the carrier 110, and the sound source acquisition device 500 will overlap.

[0026] Reference Figures 1 to 6According to an embodiment of the present invention, an acoustic testing device for smart glasses is used to test smart glasses. The smart glasses are equipped with a sound playback device and a sound receiving device. The sound playback device emits sound to the outside world through a sound playback opening on the smart glasses, and the sound receiving device receives sound from the outside world through a sound receiving opening on the smart glasses. The acoustic testing device for smart glasses includes a carrier device 100, a hole-blocking device 200, a glasses sound acquisition component, a test sound source component 400, and a sound source sound acquisition component 500. The carrier device 100 includes a carrier 110 for fixing the smart glasses. The hole-blocking device 200 includes a hole-blocking driving mechanism 210 and a hole-blocking component 220. The hole-blocking driving mechanism 210 is connected to the hole-blocking component 220 and drives the hole-blocking component 220 to block the sound playback opening and the sound receiving opening, so that the smart glasses are in a blocked state. The hole-blocking component 220 does not block the sound playback opening. When the sound receiving opening is not blocked by the plug 220, the smart glasses are in an unblocked state. The glasses sound acquisition unit is used to acquire the test sound of the glasses played by the sound playback device in both the blocked and unblocked states. When the smart glasses are fixed on the carrier 110, the sound receiving opening of the smart glasses is in a first position. When the smart glasses are not fixed on the carrier 110, the sound source sound acquisition unit 500 is movably set in the first position, and the sound source sound acquisition unit 500 in the first position is used to receive the first sound source test sound emitted by the test sound source unit 400. When the smart glasses are fixed on the carrier 110, the sound source sound acquisition unit 500 is not in the first position (and at this time the sound receiving opening of the smart glasses on the carrier 110 is in the first position), and the test sound source unit 400 is used to emit a second sound source test sound, so that the sound receiving device receives the second sound source test sound in both the blocked and unblocked states.

[0027] Acoustic testing equipment for smart glasses, or simply the equipment. Specifically, acoustic testing of smart glasses involves two aspects: first, directly testing the sound playback device (which can be called a speaker or glasses speaker) and the sound receiving device (which can be called a microphone or glasses microphone) of the smart glasses; second, by sealing the openings (or holes, including the sound playback opening and the sound receiving opening) on ​​the smart glasses, thereby testing the state of the glasses structure related to the sound playback device (or, in other words, the airtightness of the smart glasses structure related to the sound playback device), and by sealing the openings (or holes, including the sound playback opening and the sound receiving opening) on ​​the smart glasses, thereby testing the state of the glasses structure related to the sound receiving device (or, in other words, the airtightness of the smart glasses structure related to the sound receiving device).

[0028] Smart glasses, which are AI glasses, AR glasses, or a combination of both, in some embodiments include interfaces (data transmission port, charging port), micro-batteries, smart chips, image projection devices (such as waveguides, optical engines, etc.), sound receiving devices, and sound playback devices. Therefore, after smart glasses are manufactured and before they are sold, it is necessary to test and inspect their various functions, such as using the equipment of this invention to test their acoustic performance and the structural airtightness related to their acoustic performance. Because the smart glasses themselves are relatively fragile and easily damaged, and are not easy to position, handle, or align with the opening to be tested, during the testing process, the smart glasses are placed on a carrier 110, which supports, protects, and positions them. The sound playback device and sound receiving device are existing technologies in smart glasses, generally including speakers, microphones, and corresponding electronic modules (such as sound cards). Their specific composition, connections, and working principles are not covered in existing technology and will not be elaborated here. The sound playback opening and the sound receiving opening can be openings or hole-like structures on the smart glasses themselves (the main body), or openings or hole-like structures (such as speaker openings or microphone mesh openings) on the sound playback device or sound receiving device.

[0029] The carrier 110 generally includes a carrier 110 body and a carrier 110 cover. The carrier 110 body is provided with a limiting recess that is adapted to the shape of the smart glasses. The limiting recess is used to accommodate and limit the smart glasses. The carrier 110 cover is movably connected to the carrier 110 body. The carrier 110 cover is used to abut against and limit the smart glasses.

[0030] It is important to understand that there can be multiple hole-blocking components 220, and only one hole-blocking driving mechanism 210. One hole-blocking driving mechanism 210 drives multiple hole-blocking components 220 to move closer to or away from the opening on the smart glasses, causing each hole-blocking component 220 to move closer to (until it is blocked) or away from the opening on the smart glasses. Alternatively, there can be multiple hole-blocking driving mechanisms 210, with one hole-blocking component 220 driven by a single hole-blocking driving mechanism 210, causing that hole-blocking component 220 to move closer to (until it is blocked) or away from an opening on the smart glasses. Furthermore, multiple hole-blocking driving mechanisms 210 can drive multiple hole-blocking components 220, with each mechanism corresponding to only one hole-blocking component 220. Similarly, one hole-blocking component 220 can also block several openings. "Several" indicates one or more openings. In this embodiment, there are two sound playback openings, located on the left and right sides of the smart glasses (left speaker and right speaker); there are six sound receiving openings; and there are eight blocking drive mechanisms 210 and eight blocking components 220. One blocking drive mechanism 210 drives one blocking component 220, and one blocking component 220 blocks one sound receiving opening or one sound playback opening. Therefore, the eight blocking components 220 can block all openings of the smart glasses (all sound receiving openings and sound playback openings). The blocking component 220 has a larger area than the opening, so when the blocking component 220 blocks the opening, it can completely cover and seal the opening, thus completely blocking it.

[0031] The various driving mechanisms, lifting mechanisms, or other mechanisms that perform transmission functions in this invention can specifically be various cylinders (such as pneumatic cylinders, hydraulic cylinders, electric cylinders, etc.) or motors (such as ordinary motors, stepper motors, servo motors, etc.). The transmission mechanism is connected to the driven component (the component being transmitted). The transmission mechanism can be directly connected to the driven component, directly driving its movement; alternatively, it can be indirectly connected to the driven component through intermediate transmission components (such as long rods, gears, racks, belts, chains, lead screws and nuts, magnetic blocks, ropes, etc., or one or more reused or combined components), thereby changing the speed, direction, magnitude, range, start time, total duration, number of actions, and position of the driving force applied to the driven component. The transmission mechanism can have more than one driving source (or driving component), allowing the driven component to move along different directions and paths. In this embodiment, the plugging drive mechanism 210 is a cylinder (a plugging cylinder; the general structure of a cylinder is a cylinder barrel and a piston rod, which is existing technology and will not be described in detail here). The cylinder barrel is fixed on the frame 700 or the plugging slide 240, and the piston rod of the cylinder is connected to the plugging component 220. Specifically, the plugging component 220 is generally made of flexible material, such as a combination of one or more of the following: sponge block, cloth bag, silicone block, silicone head, foam board, (black) EVA foam, etc. The specific shape and material composition of the plugging component 220 at different locations can be different.

[0032] To facilitate sound acquisition and minimize external interference, the glasses sound acquisition device is generally positioned very close to the sound playback opening (at which point the smart glasses and carrier 110 are in the predetermined positions); specifically, approximately 3.7mm from the sound playback opening. The sound acquisition device can be a microphone, such as a BK4958 standard microphone. Only one (or one type) glasses sound acquisition device is used to collect the test sound from the glasses playback device in both the blocked and unblocked states. In some embodiments, the glasses sound acquisition device is fixed. To prevent isolation by the blocking device 220 and to avoid movement of the blocking device 220, the glasses sound acquisition device is generally positioned to the side or behind the sound playback opening, leaving the direction directly facing the sound playback opening unobstructed. A portion of the blocking device 220 will move and approach and block the sound playback opening from the direction directly facing it, thus achieving a better blocking effect (sealing effect). In other embodiments, the glasses sound acquisition device is driven by a moving mechanism, which can change the position of the glasses. Regarding the position of the sound acquisition component, when acquiring the test sound of the glasses played by the sound playback device in the unblocked state, the moving mechanism moves the sound acquisition component to the direct opposite of the sound playback opening. However, when acquiring the test sound of the glasses played by the sound playback device in the blocked state, the moving mechanism moves the sound acquisition component to other directions of the sound playback opening (not directly opposite, such as the side or back of the sound playback opening), avoiding the movement path of the blocking component 220 and the obstruction of the blocking component 220. This prevents the blocking component 220 from being located between the sound playback opening and the sound acquisition component of the glasses, which would cause the blocking component 220 (the obstruction of the blocking component 220) to affect the acquisition of the sound emitted from the sound playback opening by the sound acquisition component of the glasses.

[0033] The test sound source component 400 is mounted on the frame 700. The test sound source component 400, also called an artificial mouth, is a component capable of emitting a predetermined sound. Furthermore, the position of the test sound source component 400 is adjustable. For example, it can be equipped with a first connecting plate and a second connecting plate. The first connecting plate is vertically positioned and has a first oblong hole extending vertically. The test sound source component 400 is fixed to the first oblong hole with bolts. The second connecting plate is horizontally placed and has a second oblong hole extending in a certain horizontal direction. The first connecting plate is fixed to the second oblong hole with bolts. Therefore, by connecting to different parts of the oblong holes, the height and horizontal position of the test sound source component 400 can be adjusted.

[0034] It should be understood that multiple sound playback openings and multiple sound receiving openings can be provided. Therefore, correspondingly, multiple first glasses sound acquisition components 310, second glasses sound acquisition components 320, sound source sound acquisition components 500, and multiple first positions can also be provided. Specifically, in this embodiment, there are two first glasses sound acquisition components 310, two second glasses sound acquisition components 320, and six first positions and six sound source sound acquisition components 500. There can also be only one or a few sound source sound acquisition components 500. For example, if there is only one, the position of the sound source sound acquisition component 500 can be adjusted multiple times so that the sound source sound acquisition component 500 is located in different positions. Multiple acquisitions can be performed at one location, allowing a single sound source acquisition device 500 to ultimately acquire sound source test sound data from six locations (the first location). Because in the same batch of smart glasses acoustic testing, the sound source acquisition device 500 generally only needs to acquire sound source test sound data once or a few times as REF acoustic data, i.e., reference sound reception data, the number of times the sound source acquisition device 500 is used is low. Considering the limitation on the number of input channels of the test sound card, one or a few sound source acquisition devices 500 can be used for acquisition, which can also reduce the number of sound source acquisition devices 500 and save on the cost of sound source acquisition devices 500. "The sound source acquisition component 500 is movably positioned in the first position." Specifically, the sound source acquisition component 500 can be movably connected to the carrier 110 or the frame 700 (e.g., sliding connection, hinge, etc.), allowing the sound source acquisition component 500 to move to or away from the first position. The sound source acquisition component 500 can also be detachably connected to the carrier 110 or the frame 700 (e.g., threaded connection, screw connection, snap-fit ​​connection, etc.), allowing it to be fixed in the first position when needed and detached when not needed. It can also be temporarily fixed in the first position using other auxiliary components. The first sound source test sound and the second sound source test sound can be different or the same; for ease of comparison and analysis, they are generally set to be the same. In this invention, the various sounds played (emitted) by the component for testing can be pre-recorded audio files (or, the audio files are stored or imported into the component, and then the component plays the predetermined sounds according to the files; the same applies to others), test files generated by software, programs, etc., or existing files that have been downloaded or copied.

[0035] The analysis and judgment of test results can be carried out in three ways: First, the collected sound data can be analyzed separately. Second, the collected sound data can be compared and analyzed with standard sound data (for example, testing one or more qualified finished products separately, collecting data, and compiling it into standard sound data). Third, multiple collected sound data can be compared and analyzed with each other (for example, performing difference calculations).

[0036] The device of the present invention, through the above-described configuration, on the one hand, by setting the sound source acquisition component 500 to pre-collect data at a first position, and then using this data for difference calculation in subsequent data analysis, can minimize the influence of environmental interference and the different positions of the sound receiving device of the smart glasses relative to the test sound source component 400, thereby obtaining the true frequency response curve and sensitivity of the sound receiving device, correctly judging the sound receiving performance of the smart glasses, and ensuring the consistency of the frequency response curve and sensitivity data of the sound receiving devices at various locations on the smart glasses; on the other hand, by setting the hole-blocking device 200, it can collect sound playback data and sound receiving data under the hole-blocking state, and then compare and analyze them with the sound playback data and sound receiving data under the unblocking state, thereby evaluating the airtightness of the sound playback and reception related structures on the smart glasses. Therefore, the device of the present invention can not only test the acoustic performance of smart glasses, but also detect the airtightness of smart glasses, thereby preventing smart glasses products with normal acoustic performance but poor airtightness from directly entering the market; at the same time, it can also indirectly detect the dispensing and assembly of smart glasses (products with poor airtightness may have poor dispensing or gaps in assembly), thereby helping to evaluate the production line situation and supervise and improve it in a timely manner.

[0037] Specifically, in this embodiment, since the six sound receiving devices on the smart glasses share and receive the sound from the same test sound source 400 for testing, and the test sound source 400 cannot guarantee that its position is at the exact center of the six sound receiving devices, the signals received by the sound receiving devices (sound source sound acquisition device 500) at different locations will vary depending on the test sound source 400 emitting the same sound to test them, regardless of whether it is the six sound receiving devices on the smart glasses or the sound source sound acquisition device 500 (on the smart glasses contouring component 600). The different positions of the sound source component 400 cause differences (for example, at a certain moment, the test sound source component 400 emits a test sound of 94dB, but because the positions of the six sound receiving devices and the test sound source component 400 are different, the six sound receiving devices receive the test sound at different times later, and the sound pressure level data of the received test sound are also different, such as one receiving 93dB, another receiving 92dB, etc.), making it impossible to guarantee that the original frequency response curves, sensitivity and other data of these six sound receiving devices are consistent, which is inconvenient for analysis and comparison. Therefore, in this invention, by pre-setting the sound source acquisition device 500 (on the smart glasses contouring component 600) to obtain the reference sound data (frequency response curves) at various locations, and then obtaining the sound data (frequency response curves) of the sound receiving devices at various locations of the smart glasses, the pre-obtained reference sound data at the corresponding locations is subtracted from the sound data of the sound receiving devices at various locations of the smart glasses. This eliminates the influence of the different positions of the sound receiving devices of the smart glasses relative to the test sound source component 400 and environmental interference, thus obtaining the true sound data (frequency response curves) of the sound receiving devices of the smart glasses. Moreover, the sound data of the sound receiving devices at various locations have a certain consistency, which can be easily analyzed and compared. For example, their frequency response curves, 1kHz sensitivity, and other data can be analyzed and compared individually. At the same time, they can also be compared and analyzed with the standard data of standard sound receiving devices (such as the standard data in the product manual). These aspects are not considered in existing conventional smart glasses acoustic tests. They cannot guarantee the consistency of test data for a batch of smart glasses products, nor can they test the true frequency response curves and sensitivity of the sound receiving devices at various locations, nor can they be benchmarked against the standard frequency response data and sensitivity of sound receiving devices.

[0038] Because it is necessary to acquire test data from the smart glasses (such as receiving sound data from a sound receiving device) and control the smart glasses to perform specific actions (such as controlling the smart glasses to turn on, driving a speaker on the smart glasses to emit sound, or controlling a sound playback device to play test sounds), the device may also include a control system. The control system includes a control element and a control plug, with the control element electrically connected to the control plug. The smart glasses have an interface, and the control plug is inserted into the interface of the smart glasses to transmit data, perform control, and generally also power the smart glasses. Furthermore, in some embodiments, the control system may not include a control plug, and the carrier 110 (generally the main body of the carrier 110) may have a corresponding carrier plug 162. The carrier plug 162 is electrically connected to the control element and can be inserted into the interface of the smart glasses. This allows the control element to power, transmit, and receive information (data) from the smart glasses via the carrier 110 (carrier plug 162) (or, in other words, the control element is electrically connected to the sound playback device via the carrier plug 162). The device and sound receiving device; or, in other words, the control element is electrically connected to the sound card through the carrier plug 162, which facilitates testing; furthermore, the carrier 110 (generally the main body of the carrier 110) can also be provided with a plug-in drive mechanism 161, which is connected to the carrier plug 162. Both the plug-in drive mechanism 161 and the carrier plug 162 are electrically connected to the control element. The plug-in drive mechanism 161 can also be a cylinder (plug-in cylinder), whose cylinder is fixed on the main body of the carrier 110, and whose piston rod is connected to the carrier plug 162.

[0039] Electrical connections can be wired, such as power cords or fiber optic cables, or wireless, such as wireless networks or Bluetooth. The control system specifically includes control elements; these control elements can be various CPUs, chips, microprocessors, microcontrollers, or integrated devices containing these components, such as host computers, tablet computers, or embedded systems. Multiple control elements can be provided, with each controlled component corresponding to at least one control element (electrically connected), and each component's corresponding control element can also be electrically connected to one (or more) overall control elements. The control system may also include other components, such as keyboards, mice, monitors (or display screens), operation panels, and various operation buttons (such as emergency stop buttons and start buttons), all electrically connected to the control elements. The connection between the control element and various components is as follows: Specifically, the control element can be directly connected to the motors (electric cylinders) of each drive mechanism, thus directly controlling the motors. For example, each drive mechanism may include a solenoid valve, and the control element is electrically connected to the solenoid valve. The solenoid valve corresponds to the cylinder (pneumatic cylinder, hydraulic cylinder) of each drive mechanism, allowing the control element to control the cylinder of each drive mechanism via the solenoid valve (or, in other words, the cylinders of each drive mechanism are electrically or indirectly connected to the control element via the solenoid valve). The control element's electrical connection to various devices enables intelligent control of each drive mechanism. More importantly, the control element is electrically connected to the test sound source 400, each sound acquisition unit, and the sound playback and receiving devices on the smart glasses. This allows for the playback of specific test sounds, and the reception of the test results (data) by the sound acquisition and receiving devices. The collected data is then statistically analyzed to obtain various acoustic performance characteristics of the smart glasses, as well as the airtightness status related to these acoustic performance characteristics.

[0040] The equipment also includes a frame 700, a carrier 110, a hole-blocking drive mechanism 210, a test sound source component 400, and various sound acquisition components, all of which can be mounted on the frame 700; the frame 700 serves as the basic carrier for mounting and fixing the various components of the equipment.

[0041] The equipment may also include a housing, and various components on the equipment, such as a frame 700 (part of it), a carrier 110, a hole-blocking drive mechanism 210, a test sound source 400, and various sound acquisition components, can all be housed inside the housing. The housing can provide a certain degree of sealing and isolation (mainly for sound insulation) to prevent the external environment (especially external noise) from affecting the test results.

[0042] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the hole-blocking device 200 further includes a hole-blocking avoidance drive mechanism 230, which is drively connected to the hole-blocking drive mechanism 210.

[0043] The hole-blocking avoidance drive mechanism 230 is provided to facilitate the placement and removal of smart glasses on the vehicle 110, and also to facilitate the movement and lifting of the vehicle 110 in subsequent situations. The number of hole-blocking avoidance drive mechanisms 230, their correspondence with hole-blocking drive mechanisms 210, and the specific type of drive source are the same as those for the hole-blocking drive mechanism 210 (hole-blocking avoidance drive mechanism 230 and hole-blocking component 220) mentioned above, and will not be repeated here. In this embodiment, a hole-blocking avoidance drive mechanism 230 is provided on the left side. This hole-blocking avoidance drive mechanism 230 is driven by two hole-blocking drive mechanisms 210 (cylinders) on the left side. Of these two hole-blocking drive mechanisms 210, the front hole-blocking drive mechanism 210 is used to drive the hole-blocking component 220 to block the sound playback opening (left horn) on the left side of the smart glasses, and the rear hole-blocking drive mechanism 210 is used to drive the hole-blocking component 220 to block one sound receiving opening on the smart glasses. A hole-blocking avoidance drive mechanism 230 is also provided on the right side. This hole-blocking avoidance drive mechanism 230 is driven by four hole-blocking drive mechanisms 210 (cylinders) on the right side. Of these four hole-blocking drive mechanisms 210, the frontmost hole-blocking drive mechanism 210 is used to drive the hole-blocking component 220 to block the sound playback opening (right horn) on the right side of the smart glasses, and the three rear hole-blocking drive mechanisms 210 are used to drive the hole-blocking component 220 to block the three sound receiving openings on the smart glasses respectively. No hole-blocking avoidance mechanism is provided on the rear side. The drive mechanism 230 (since the hole is blocked from the side of the smart glasses, the hole-blocking component 220 can clear space for the vehicle 110 to move up, down, and forward after resetting) has only two hole-blocking drive mechanisms 210. These two hole-blocking drive mechanisms 210 are used to drive one hole-blocking component 220 to block one sound receiving opening on the smart glasses respectively. The hole-blocking avoidance drive mechanisms 230 are all cylinders (hole-blocking avoidance cylinders), and a hole-blocking slide 240 is also provided. (Or, the plugging device 200 also includes a plugging slide 240), the cylinder barrel of the cylinder is fixed on the frame 700, the plugging slide 240 is slidably connected to the frame 700 or the cylinder barrel, and the cylinder barrels of all the plugging drive mechanisms 210 connected to a plugging avoidance drive mechanism 230 are fixed on the plugging slide 240, so that the plugging avoidance drive mechanism 230 can simultaneously drive all the plugging drive mechanisms 210 and plugging parts 220 on the left or right to avoid the blockage.In this embodiment, the avoidance direction (or the direction in which the hole-blocking avoidance drive mechanism 230 drives the hole-blocking drive mechanism 210 to move) is the horizontal direction away from the vehicle 110. Specifically, the left-side hole-blocking avoidance drive mechanism 230 drives the hole-blocking drive mechanism 210 and the hole-blocking component 220 to move to the left to avoid the vehicle 110 (lifting, moving forward and backward), and the right-side hole-blocking avoidance drive mechanism 230 drives the hole-blocking drive mechanism 210 and the hole-blocking component 220 to move to the right to avoid the vehicle 110. After the test is completed, the two rear hole-blocking drive mechanisms 210 will also drive the hole-blocking component 220 to move backward to avoid the vehicle 110 and the movement of the smart glasses on the vehicle 110.

[0044] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the vehicle device 100 further includes a vehicle lifting mechanism 120, which is tractively connected to the vehicle 110 (the main body of the vehicle 110); the glasses sound acquisition device includes a first glasses sound acquisition device 310 and a second glasses sound acquisition device 320, the first glasses sound acquisition device 310 is used to acquire the first glasses test sound played by the sound playback device in the unblocked state, and the second glasses sound acquisition device 320 is used to acquire the second glasses test sound played by the sound playback device in the blocked state; the vehicle lifting mechanism 120 is used to move the smart glasses on the vehicle 110 (the main body of the vehicle 110) toward the first glasses sound acquisition device 310, so that the sound playback opening is directly facing the first glasses sound acquisition device 310, and the vehicle lifting mechanism 120 is also used to move the smart glasses on the vehicle 110 (the main body of the vehicle 110) toward the second glasses sound acquisition device 320.

[0045] Through the above settings, the first glasses sound acquisition unit 310 can collect the sound of the smart glasses in their unblocked state, directly facing the sound playback opening. In practice, the sound playback opening is generally positioned directly opposite the ear (typically, the sound playback opening is located on the temple of the smart glasses, which rests on the ear, so the sound playback opening is generally facing downwards to facilitate the ear's reception of the sound emitted by the smart glasses; therefore, the first glasses sound acquisition unit 310 is generally located below the sound playback opening). Therefore, collecting the sound of the smart glasses in their unblocked state directly facing the sound playback opening can best simulate the ear's reception of the smart glasses' sound, achieving the best testing effect (testing how the sound emitted by the smart glasses is received by the ear). Furthermore, the standard test data for the smart glasses' sound in their unblocked state is also collected directly facing the sound playback opening. Therefore, the test data collected in this way is convenient for comparison and analysis with standard test data, reducing analysis and comparison errors and preventing incorrect test results. The test sounds of the first glasses and the second glasses can be different or the same; for ease of comparison and analysis, they are generally set to be the same. In this embodiment, the vehicle lifting mechanism 120 mainly includes a cylinder (vehicle 110 lifting cylinder). In addition, for the convenience of guidance (and to assist in load bearing), a vehicle 110 lifting slide is also provided. The cylinder barrel is fixed on the frame 700 (vehicle moving sliding seat 153). The piston rod of the cylinder is connected to the vehicle 110 lifting slide. The vehicle 110 lifting slide and the cylinder barrel or the frame 700 (vehicle moving sliding seat 153) are slidably connected. The vehicle 110 is fixed on the vehicle 110 lifting slide.

[0046] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the hole-blocking device 200 further includes a hole-blocking avoidance drive mechanism 230, which is connected to the hole-blocking drive mechanism 210 and the second glasses sound acquisition component 320.

[0047] The second glasses sound acquisition component 320 is driven by the hole-blocking avoidance drive mechanism 230. When the hole-blocking avoidance drive mechanism 230 drives the hole-blocking drive mechanism 210, the hole-blocking component 220 to avoid the movement of the carrier 110, smart glasses, and other components, the second glasses sound acquisition component 320 can be moved and avoided along with it. More specifically, in this embodiment, the second glasses sound acquisition component 320 is fixed on the hole-blocking slide 240 by a bracket and on the hole-blocking device 200 on one side. The foremost hole-blocking component 220 is used to approach and block the downward-facing sound playback opening on one side of the smart glasses from bottom to top. Therefore, the second glasses sound acquisition component 320 is located above (directly above or to the side of) the foremost hole-blocking component 220 and the sound playback opening (smart glasses temple).

[0048] Reference Figure 3 and Figure 6 In some embodiments of the present invention, the vehicle device 100 further includes a vehicle fixing mechanism 130, a vehicle lifting mechanism 120 is connected to one side (front side) of the vehicle 110 (the main body of the vehicle 110), and the vehicle fixing mechanism 130 is used to clamp and fix the other side (rear side) of the vehicle 110.

[0049] Since the space directly beneath the carrier 110 needs to be cleared for the installation of the test sound source 400 and the propagation of sound, a structure for fixing the carrier 110 is generally not set directly beneath it. One side of the carrier 110 is connected and fixed by the carrier lifting mechanism 120, and a carrier fixing mechanism 130 can be set on the other side of the carrier 110 to clamp and fix it, so that the carrier 110 is firmly fixed and will not shake or even tilt, affecting the test results. Especially in the case of plugging the hole, since the plugging component 220 needs to contact and apply a certain force to the smart glasses to ensure a good sealing effect (good sealing performance) after plugging the hole, the carrier fixing mechanism 130 is set to clamp and fix the other side of the carrier 110, so that when the plugging component 220 applies force to the smart glasses and the carrier 110, the smart glasses and the carrier 110 remain stable and will not shake or tilt. In this embodiment, the vehicle lifting mechanism 120 is connected to the front side of the vehicle 110, and the vehicle fixing mechanism 130 is used to clamp and fix the rear side of the vehicle 110. Specifically, the vehicle fixing mechanism 130 can be a finger cylinder or a parallel gripper cylinder, the cylinder of which is fixed on the frame 700 (vehicle 110 fixing and avoiding slide), and the piston rod is connected to two grippers, so as to clamp and fix the vehicle 110.

[0050] Furthermore, the vehicle device 100 also includes a vehicle fixing and avoidance mechanism 140, which is drively connected to the vehicle fixing mechanism 130. The vehicle fixing and avoidance mechanism 140 can provide space for the movement of the vehicle 110, especially for the lifting and lowering of the vehicle 110, preventing collisions between the vehicle fixing mechanism 130 (especially the grippers of the vehicle fixing mechanism 130) and the vehicle 110 during lifting and lowering. Specifically, the vehicle fixing and avoidance mechanism 140 may include a cylinder (vehicle 110 fixing and avoidance cylinder) and a slide (vehicle 110 fixing and avoidance slide). The cylinder barrel is fixed to the frame 700, and the piston rod of the cylinder is connected to the slide. The slide and the frame 700 or the cylinder barrel are slidably connected, and the cylinder barrel of the vehicle fixing mechanism 130 is fixed to the slide.

[0051] It should be understood that in some embodiments of the present invention, the vehicle device 100 does not include the vehicle lifting mechanism 120 or even the vehicle fixing and avoidance mechanism 140. Instead, the first glasses sound acquisition device 310 is connected to the glasses lifting mechanism, which drives the first glasses sound acquisition device 310 to rise or fall, thereby moving closer to or away from the sound playback opening of the smart glasses. That is, when collecting sound playback data in the unblocked state, the first glasses sound acquisition device 310 is raised or lowered instead of the smart glasses, so that the first glasses sound acquisition device 310 and the sound playback opening are brought closer to each other.

[0052] Reference Figure 4 and Figure 5 In some embodiments of the present invention, the vehicle device 100 further includes a vehicle moving mechanism 150, which is connected to the vehicle 110 in a transmission manner.

[0053] The carrier moving mechanism 150 can move the carrier 110 closer to the human hand or robot arm next to the frame 700 (especially when there is a box, it can move to the box door or even leave from the box door), making it convenient for the human hand or robot arm to pick up and put down the smart glasses.

[0054] Specifically, the vehicle moving mechanism 150 includes a vehicle moving drive assembly 151, a vehicle moving slide rail 152, and a vehicle moving sliding seat 153. The vehicle moving sliding seat 153 is slidably connected to the vehicle moving slide rail 152, and the vehicle moving drive assembly 151 is drively connected to the vehicle moving sliding seat 153. The cylinder of the vehicle 110 lifting cylinder is fixed to the vehicle moving sliding seat 153. The vehicle moving slide rail 152 is mounted on the frame 700, and there are two of them. The two vehicle moving slide rails 152 are arranged opposite to each other, and the two sides of the vehicle moving sliding seat 153 are slidably connected to the two vehicle moving slide rails 152 respectively. The vehicle movement drive assembly 151 can be a motor screw and nut structure, a motor belt and pulley structure, a motor gear and rack structure, or other structures. In this embodiment, the vehicle movement drive assembly 151 is a vehicle 110 movement cylinder. The cylinder barrel of the vehicle 110 movement cylinder is fixed on the frame 700, and the piston rod of the vehicle 110 movement cylinder is connected to the vehicle movement sliding seat 153.

[0055] Reference Figure 2 and Figure 7 In some embodiments of the present invention, the smart glasses acoustic testing device further includes an auxiliary clamp for fixing the sound source sound acquisition component 500.

[0056] The auxiliary clamp can be fixed on the frame 700 or the carrier 110. The sound source sound acquisition component 500 can be fixed by the auxiliary clamp, making the fixing more convenient and simple.

[0057] Reference Figure 2 and Figure 7 In some embodiments of the present invention, the auxiliary fixture is a smart glasses conforming part 600, which corresponds to the smart glasses. A sound acquisition installation opening 610 (which can be a slot, hole or other opening) is provided on the smart glasses conforming part 600. The sound acquisition installation opening 610 corresponds to the sound receiving opening of the smart glasses. The sound acquisition installation opening 610 is used to install the sound source sound acquisition part 500.

[0058] "The smart glasses contouring component 600 corresponds to the smart glasses." Specifically, (excluding the sound acquisition mounting opening 610), the smart glasses contouring component 600 and the smart glasses have essentially the same shape. "The sound acquisition mounting opening 610 corresponds to the sound receiving opening of the smart glasses." Specifically, because the smart glasses contouring component 600 and the smart glasses have essentially the same shape, after superimposing (virtually superimposing) the smart glasses contouring component 600 and the smart glasses, the sound acquisition mounting opening 610 on the smart glasses contouring component 600 and the sound receiving opening of the smart glasses are basically in the same position. In this embodiment, six sound acquisition mounting openings 610 are provided. A sound source sound acquisition component 500 can be inserted into all six sound acquisition mounting openings 610 simultaneously (i.e., six sound source sound acquisition components 500 can be inserted into one smart glasses contour component 600 at the same time) to collect sound source test sounds from six positions (first positions) at once. Alternatively, only one sound source sound acquisition component 500 can be used. The sound source sound acquisition component 500 is inserted into one sound acquisition mounting opening 610, and only the sound source test sound from one first position is collected in one test. By changing the sound acquisition mounting opening 610 into which the sound source sound acquisition component 500 is inserted and performing multiple tests, the sound source test sounds from all six positions (first positions) can be collected using one sound source sound acquisition component 500, which can save costs. The smart glasses conformal component 600 and the smart glasses are basically the same in shape, while the sound acquisition mounting opening 610 corresponds to the sound receiving opening. Therefore, through these settings, the reference sound receiving data acquired by the sound source acquisition component 500 can be made as similar as possible to the acoustic data received by the smart glasses through the sound receiving opening during the actual acoustic test of the smart glasses (or the reference contrast can be as high as possible), thus taking into account the influence of the smart glasses themselves on sound propagation and data acquisition as much as possible.

[0059] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the carrier device 100 further includes a plug-in drive mechanism 161 and a carrier plug 162, wherein the plug-in drive mechanism 161 is connected to the carrier plug 162, and the carrier plug 162 is used for inserting into the interface of the smart glasses.

[0060] Both the insertion / removal drive mechanism 161 and the carrier plug 162 are electrically connected to control elements. The insertion / removal drive mechanism 161 can also be a cylinder (insertion / removal cylinder), with its cylinder barrel fixed on the carrier 110 (carrier 110 body), and its piston rod connected to the carrier plug 162. By setting the insertion / removal drive mechanism 161 and the carrier plug 162, automatic insertion and removal of smart glasses can be achieved, thereby increasing the overall automation level of the equipment and reducing manual operation.

[0061] Reference Figures 1 to 7 The testing method according to an embodiment of the present invention, using the aforementioned smart glasses acoustic testing equipment (or, in other words, applied to the aforementioned smart glasses acoustic testing equipment), includes the following steps: The sound source acquisition device 500 is placed in the first position of the carrier 110. The test sound source device 400 emits a first sound source test sound, and the sound source acquisition device 500 acquires the first sound source test sound to form reference sound reception data. The sound source acquisition device 500 is then removed from the first position of the carrier 110. It should be understood that this step, in batch testing of smart glasses of the same batch or type, only needs to be performed once or a few times at the very beginning (to prevent inaccurate results from a single test). Subsequently, the following tests are performed sequentially on multiple smart glasses of the same batch or type, and this step is generally not required during this process. Alternatively, the sound reception data in the unblocked state, the sound reception data in the blocked state, the sound playback data in the unblocked state, and the sound playback data in the blocked state are all corresponding to each smart glasses (or, each smart glasses has its own unique data information); while the reference sound reception data is present from the beginning and remains unchanged. For comparative analysis of the acoustic performance and airtightness of each smart glasses, the same reference sound reception data is used. Secure the smart glasses to vehicle 110; The smart glasses' sound playback device plays a test sound, and the glasses' sound acquisition device collects the test sound (in the unblocked state) to form unblocked sound playback data. It should be understood that when collecting sound playback data (including the various steps described below), each sound playback device (speaker) of the smart glasses is generally collected individually. Specifically, in this embodiment, since the smart glasses have one speaker on each side, the left speaker (or right speaker) can play the test sound first, and the left speaker's sound acquisition device collects the unblocked sound to form the left speaker's unblocked sound playback data. Then, the right speaker plays the test sound, and the right speaker's sound acquisition device collects the unblocked sound to form the right speaker's unblocked sound playback data. The collection of blocked sound playback data and other similar steps are handled similarly. The test sound source component 400 emits a second sound source test sound, and the sound receiving device of the smart glasses receives the second sound source test sound (in the unblocked state), forming sound reception data in the unblocked state; it should be understood that since the smart glasses can be equipped with multiple sound receiving devices, multiple sound reception data can be formed accordingly. The hole-blocking drive mechanism 210 drives the hole-blocking component 220 to block the sound playback opening and the sound receiving opening of the smart glasses, so that the smart glasses are in a hole-blocking state. The test sound source component 400 emits a second sound source test sound, and the sound receiving device receives the second sound source test sound in the blocked state, forming sound reception data in the blocked state. The smart glasses' sound playback device plays the glasses' test sound, and the glasses' sound acquisition device collects the glasses' test sound in the blocked state, forming sound playback data in the blocked state. By comparing and analyzing reference sound reception data, sound reception data in the unblocked state, sound reception data in the blocked state, sound playback data in the unblocked state, and sound playback data in the blocked state, the acoustic performance and airtightness of the smart glasses are evaluated.

[0062] More specifically, the testing method using the smart glasses acoustic testing equipment of this embodiment includes the following steps: The vehicle moving mechanism 150 moves the vehicle 110 (on the vehicle lifting mechanism 120) to the front of the smart glasses acoustic testing equipment; The sound source acquisition component 500 is placed in the sound acquisition mounting opening 610 of the smart glasses contour component 600 corresponding to the smart glasses, and then the smart glasses contour component 600 (with the sound source acquisition component 500 installed) is fixed on the carrier 110. The vehicle moving mechanism 150 moves the vehicle 110 to the middle of the smart glasses acoustic testing equipment (above the test sound source component 400, or it can be said to move the vehicle 110 to the 'original position' described below, at which time the sound source sound acquisition component 500 on the smart glasses contour component 600 on the vehicle 110 is in the first position). The test sound source component 400 emits the first sound source test sound, and the sound source sound acquisition component 500 acquires the first sound source test sound to form reference sound reception data (stored in the control element); The vehicle moving mechanism 150 moves the vehicle 110 to the front of the smart glasses acoustic testing equipment; and removes the smart glasses contour piece 600 (loaded with the sound source sound acquisition piece 500) from the vehicle 110 (completing the sound receiving data acquisition step). Secure the smart glasses to vehicle 110; The carrier moving mechanism 150 moves the carrier 110 to the middle of the smart glasses acoustic testing equipment (above the test sound source 400); the plug-in drive mechanism 161 drives the carrier plug 162 to be inserted into the interface of the smart glasses. The vehicle lifting mechanism 120 drives the vehicle 110 to move down (to a predetermined position; generally, it is an extreme position of the cylinder stroke; at this time, the sound playback opening of the smart glasses is located not far above the first glasses sound acquisition component 310, for example, the distance between the first glasses sound acquisition component 310 and the sound playback opening is no more than 4mm). The smart glasses' sound playback device plays the first glasses test sound, and the first glasses sound acquisition unit 310 acquires the first glasses test sound (in the unblocked state) to form the unblocked state sound playback data (stored in the control element). The vehicle lifting mechanism 120 drives the vehicle 110 to move upward (to its original position). At this time, the sound receiving opening of the smart glasses on the vehicle 110 is in the first position. In other words, the sound source sound acquisition component 500 and the sound receiving opening (glasses microphone) are in the same position relative to the test sound source component 400; generally, it is another extreme position of the cylinder stroke. The test sound source component 400 emits a second sound source test sound, and the sound receiving device of the smart glasses receives the second sound source test sound (in the unblocked state) (the second sound source test sound is generally the same as the first sound source test sound), forming sound reception data in the unblocked state (stored in the control element). The vehicle fixing and avoidance mechanism 140 drives the vehicle fixing mechanism 130 to move forward, and the vehicle fixing mechanism 130 clamps and fixes the other side of the vehicle 110; (Preparation for plugging) The plugging avoidance drive mechanism 230 drives the plugging drive mechanism 210 (the plugging component 220 connected to the plugging drive mechanism 210) and the second glasses sound acquisition component 320 to move towards the smart glasses (within the carrier 110) (moving roughly horizontally, the left plugging avoidance drive mechanism 230 roughly drives the component to move to the right, and the right plugging avoidance drive mechanism 230 roughly drives the component to move to the left; and at this time, the second glasses sound acquisition component 320 moves to a distance not far above the sound playback opening of the smart glasses, for example, the distance between the second glasses sound acquisition component 320 and the smart glasses is not greater than 4mm). (Blocking Step) The blocking drive mechanism 210 drives the blocking component 220 to move towards the smart glasses (in the carrier 110). (In this embodiment, the six blocking drive mechanisms 210 on the left and right sides drive the blocking component 220 to move upward, while the two blocking drive mechanisms 210 at the rear drive the blocking component 220 to move forward.) This causes the blocking component 220 to block the sound playback opening and the sound receiving opening of the smart glasses, thereby putting the smart glasses in a blocked state. The test sound source component 400 emits a second sound source test sound, and the sound receiving device of the smart glasses receives the second sound source test sound in the blocked state, forming sound reception data in the blocked state (stored in the control element); The smart glasses' sound playback device plays the test sound of the second glasses, and the second glasses' sound acquisition unit 320 acquires the test sound of the second glasses under the blocked state, forming the sound playback data of the blocked state (stored in the control element); The hole-blocking drive mechanism 210 drives the hole-blocking component 220 to move away from the smart glasses (within the carrier 110) (i.e., in the opposite direction to the hole-blocking step described above); The hole-blocking avoidance drive mechanism 230 drives the hole-blocking drive mechanism 210 (the hole-blocking component 220 connected to the hole-blocking drive mechanism 210) and the second glasses sound acquisition component 320 to move away from the smart glasses (inside the carrier 110) (i.e., in the opposite direction to the above-mentioned hole-blocking preparation step); The vehicle fixing mechanism 130 no longer clamps and fixes the vehicle 110, and the vehicle fixing and avoidance mechanism 140 drives the vehicle fixing mechanism 130 to move backward (reset, avoid); The plug-in / plug-out drive mechanism 161 drives the carrier plug 162 to be unplugged from the interface of the smart glasses; the carrier moving mechanism 150 moves the carrier 110 (on the carrier lifting mechanism 120) to the front of the smart glasses acoustic testing equipment. Remove the smart glasses from the carrier 110 (the next smart glasses can then be placed in, and the data collection work for the next smart glasses can be carried out according to the steps after the above reference sound reception data collection steps are completed). (Comparative Analysis Steps) Compare and analyze the reference sound reception data, sound reception data in the unblocked state, sound reception data in the blocked state, sound playback data in the unblocked state, and sound playback data in the blocked state to evaluate the acoustic performance and airtightness of the smart glasses.

[0063] For data comparison and analysis, it can be done manually, automatically after unified processing by control components, or by manually judging the processed data to evaluate the acoustic performance and airtightness of smart glasses.

[0064] In the comparative analysis steps, for example, by analyzing the sound playback data in the unblocked state, we can obtain the FR curve (frequency response curve), THD distortion (total harmonic distortion), HOHD (higher harmonic distortion), RB (Rub & Buzz, erroneous sound / loop), etc. of each sound playback device of the smart glasses. For the reference sound reception data and the sound reception data in the unblocked state, more specifically, the reference sound reception data can be the MIC-REF curve (original reference frequency response curve), which is processed by the control element (when acquiring the reference sound reception data, the sound reception data in the unblocked state, and the sound reception data in the blocked state, the test sound source 400 provides a 94dB excitation signal, or emits a 94dB sound source test sound; therefore, a subtraction of 94dB is generally performed here, that is, MIC-REF-FR=MIC-REF-94dB), to obtain the MIC-REF-FR curve (the reference frequency response curve; one sound source acquisition device 500 corresponds to one such curve; the same applies to the sound receiving device of the smart glasses described below); unblocked state The sound reception data can be the DUT-MIC-FR curve (the original frequency response curve of the microphone); then, by performing a difference operation, we can obtain the most realistic MIC-FR curve of the sound receiving device (microphone) (MIC-FR = DUT-MIC-FR minus MIC-REF-FR; that is, the relatively pure frequency response curve of the microphone itself after eliminating interference as much as possible. Afterwards, we may also perform further analysis or processing on this curve, such as using the data at 1KHZ as the sensitivity value of the microphone). That is, we should try to eliminate the interference caused by the environment (such as the uneven sound field caused by the enclosure) and the influence of the different positions of the sound receiving devices of the smart glasses relative to the test sound source 400, and obtain the pure sound-to-electric conversion frequency response characteristics of the sound receiving device of the smart glasses itself.

[0065] For the sound reception data in both the blocked and unblocked states, the blocked state data can be represented by the MIC-SEAL-FR curve (microphone frequency response curve in the blocked state), and the unblocked state data can be represented by the MIC-OPEN-FR curve (microphone frequency response curve in the unblocked state). During comparative analysis, the SFRD curve (sealing isolation data; SFRD = MIC-SEAL-FR minus MIC-OPEN-FR) can be obtained. Generally, since the sound signal (sound pressure level) received by the microphone in the unblocked state is significantly greater than that received by the microphone in the blocked state, the normal SFRD curve is generally below the predetermined threshold (e.g., -20dB) across the entire frequency band. This indicates that the blockage is effective and the structural sealing (air tightness) of the microphone corresponding to the smart glasses is good. However, if the SFRD value is greater than the predetermined threshold at many frequency points, it indicates that the structural sealing (air tightness) of the microphone corresponding to the smart glasses is poor.

[0066] For sound playback data with and without the hole blocked, the same process as described above can be used to assess whether the structural sealing (air tightness) of the smart glasses' corresponding speaker is up to standard.

[0067] Therefore, the testing method of this invention can minimize the influence of environmental interference and the different positions of the sound receiving devices in various parts of the smart glasses relative to the test sound source 400, so as to correctly judge the sound receiving performance of the smart glasses; and can also evaluate the airtightness of the sound playback and reception related structures on the smart glasses.

[0068] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An acoustic testing device for smart glasses, used to test smart glasses, wherein the smart glasses are provided with a sound playback device and a sound receiving device, the sound playback device being used to emit sound to the outside world through a sound playback opening on the smart glasses, and the sound receiving device being used to receive sound from the outside world through a sound receiving opening on the smart glasses, characterized in that, The acoustic testing equipment for the smart glasses includes: A carrier device, including a carrier for securing the smart glasses; A hole-blocking device includes a hole-blocking driving mechanism and a hole-blocking component. The hole-blocking driving mechanism is tractively connected to the hole-blocking component. The hole-blocking driving mechanism is used to drive the hole-blocking component to block the sound playback opening and the sound receiving opening, so that the smart glasses are in a hole-blocking state. When the hole-blocking component does not block the sound playback opening and the sound receiving opening, the smart glasses are in an unblocked state. The glasses sound acquisition device is used to acquire the test sound of the glasses played by the sound playback device in both the blocked and unblocked states. Test the sound source component; A sound source acquisition device; when the smart glasses are fixed to the carrier, the sound receiving opening of the smart glasses is located in a first position; when the smart glasses are not fixed to the carrier, the sound source acquisition device is movably disposed in the first position, and the sound source acquisition device in the first position is used to receive a first sound source test sound emitted by the test sound source device; when the smart glasses are fixed to the carrier, the sound source acquisition device is not in the first position, and the test sound source device is used to emit a second sound source test sound, so that the sound receiving device receives the second sound source test sound in the blocked state and the second sound source test sound in the unblocked state.

2. The acoustic testing equipment for smart glasses according to claim 1, characterized in that, The hole-plugging device further includes a hole-plugging avoidance drive mechanism, which is throttle-connected to the hole-plugging drive mechanism.

3. The acoustic testing equipment for smart glasses according to claim 1, characterized in that, The vehicle device further includes a vehicle lifting mechanism, which is tractively connected to the vehicle; the glasses sound acquisition device includes a first glasses sound acquisition device and a second glasses sound acquisition device, the first glasses sound acquisition device is used to acquire the first glasses test sound played by the sound playback device in the unblocked state, and the second glasses sound acquisition device is used to acquire the second glasses test sound played by the sound playback device in the blocked state; the vehicle lifting mechanism is used to move the smart glasses on the vehicle toward the first glasses sound acquisition device, so that the sound playback opening is directly facing the first glasses sound acquisition device, and the vehicle lifting mechanism is also used to move the smart glasses on the vehicle toward the second glasses sound acquisition device.

4. The intelligent glasses acoustic testing device according to claim 3, characterized in that, The hole-blocking device also includes a hole-blocking avoidance drive mechanism, which is connected to the hole-blocking drive mechanism and the second glasses sound acquisition element.

5. The acoustic testing equipment for smart glasses according to claim 3, characterized in that, The vehicle device also includes a vehicle fixing mechanism. The vehicle lifting mechanism is driven to one side of the vehicle, and the vehicle fixing mechanism is used to clamp and fix the other side of the vehicle.

6. The acoustic testing equipment for smart glasses according to claim 1, characterized in that, The vehicle device further includes a vehicle moving mechanism, which is tractively connected to the vehicle.

7. The acoustic testing equipment for smart glasses according to claim 1, characterized in that, The smart glasses acoustic testing equipment also includes an auxiliary clamp for fixing the sound source acquisition component.

8. The acoustic testing equipment for smart glasses according to claim 7, characterized in that, The auxiliary clamp is a smart glasses conforming component, which corresponds to the smart glasses. A sound acquisition and installation opening is provided on the smart glasses conforming component, which corresponds to the sound receiving opening of the smart glasses. The sound acquisition and installation opening is used to install the sound source sound acquisition component.

9. The acoustic testing equipment for smart glasses according to claim 1, characterized in that, The carrier device further includes a plug-in drive mechanism and a carrier plug, the plug-in drive mechanism being kinetically connected to the carrier plug, the carrier plug being used to insert into the interface of the smart glasses.

10. A testing method, using the acoustic testing equipment for smart glasses according to any one of claims 1 to 9, characterized in that, The testing method includes the following steps: The sound source acquisition device is set at the first position of the vehicle, the sound source device emits the first sound source test sound, and the sound source acquisition device acquires the first sound source test sound to form reference sound reception data; Remove the sound source acquisition device from the first position of the vehicle; Secure the smart glasses to the vehicle; The smart glasses' sound playback device plays the glasses' test sound, and the glasses' sound acquisition device acquires the glasses' test sound to form sound playback data in an unblocked state. The test sound source emits a second sound source test sound, and the sound receiving device of the smart glasses receives the second sound source test sound, forming sound reception data in the unblocked state. The hole-blocking drive mechanism drives the hole-blocking component to block the sound playback opening and the sound receiving opening of the smart glasses, so that the smart glasses are in a blocked state. The test sound source emits a second sound source test sound, and the sound receiving device receives the second sound source test sound in the blocked state, forming sound receiving data in the blocked state. The smart glasses' sound playback device plays glasses test sounds, and the glasses' sound acquisition device acquires the glasses test sounds in the blocked state, forming blocked state sound playback data. By comparing and analyzing the reference sound reception data, the sound reception data in the unblocked state, the sound reception data in the blocked state, the sound playback data in the unblocked state, and the sound playback data in the blocked state, the acoustic performance and airtightness of the smart glasses are evaluated.

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