Acoustic product pressure measurement device and method

Abstract

The present application provides an acoustic product stress testing device and method, which relates to the field of stress testing technology. The acoustic product stress testing device includes a sound pickup device, an environmental simulation device and a test box. The environmental simulation device, the sound pickup device and the acoustic product to be tested are all arranged in the test box, and the acoustic product and the sound pickup device are opposite and spaced from each other; in the actual stress testing process, the present application can use the environmental simulation device to simulate different test environments in the test box, and use the sound pickup device to collect test audio data corresponding to the test audio played by the acoustic product under different test environments. Finally, by comparing the test audio data under different test environments with the reference audio data, the test results under different test environments can be obtained. This enables the stress testing of the present application to adapt to different regions and different environments, thereby improving the comprehensiveness of the stress testing and the accuracy of the stress testing results, thereby avoiding the failure of the acoustic product or the occurrence of noise after it is put on the market.

Description

Technical Field

[0001] The present application relates to the field of pressure measurement technology, and in particular to a pressure measurement device and method for an acoustic product. Background Art

[0002] Stress testing (abbreviated as stress testing) refers to a method of testing the performance, stability and reliability of a product under extreme or high-load conditions. Most products are generally subjected to stress testing before leaving the factory to ensure the use effect of the product after it is put on the market. In related technologies, stress testing of acoustic products such as mobile phones, tablets, headphones, speakers, smart wearable devices, etc. is usually conducted under a single atmospheric pressure in the existing environment of the place of production. It cannot adapt to different regions and different environments, resulting in inaccurate stress test results. The product is prone to failure or noise after it is put on the market. Summary of the invention

[0003] The present application provides an acoustic product pressure testing device and method, aiming to solve the problem in the related art that the pressure testing results of acoustic products are inaccurate and they are prone to failure or noise after being put on the market.

[0004] In order to solve the above-mentioned drawbacks existing in the related art, the first aspect of the present application provides an acoustic product pressure test device, which includes a controller, a test box, a sound pickup device, a product fixture, a sound pickup fixture and an environment simulation device. The environment simulation device, the product fixture and the sound pickup fixture are all arranged in the test box, the product fixture is opposite to the sound pickup fixture and is spaced from each other, the sound pickup device is arranged on the sound pickup fixture, the product fixture is used to fix the acoustic product to be tested, and the environment simulation device, the sound pickup device and the acoustic product are respectively connected to the controller for communication. Among them, the environment simulation device is used to adjust at least one environmental parameter in the test box to simulate different test environments in the test box; the acoustic product is used to play test audio in different test environments; the sound pickup device is used to obtain test audio data corresponding to the test audio by picking up sound in different test environments; the controller is used to compare the test audio data in different test environments with the reference audio data, and obtain the test results in different test environments according to the comparison results.

[0005] In some implementations, the product fixture includes a product displacement assembly and a product fixture, the product fixture is arranged on the product displacement assembly, the product fixture is used to fix the acoustic product, and the product displacement assembly is communicatively connected to the controller; the sound pickup fixture includes a sound pickup displacement assembly and a sound pickup fixture, the sound pickup fixture is arranged on the sound pickup displacement assembly, the sound pickup device is arranged on the sound pickup fixture, and the sound pickup displacement assembly is communicatively connected to the controller. Specifically, the product displacement assembly is used to drive the product fixture and the acoustic product to move synchronously in the test box; the sound pickup displacement assembly is used to drive the sound pickup fixture and the sound pickup device to move synchronously in the test box; the controller is also used to control the product displacement assembly and the sound pickup displacement assembly, so that the sound-speaking position of the acoustic product is aligned with the sound-speaking position of the sound pickup device, and the distance between the sound-speaking position and the sound pickup position is within a preset distance range.

[0006] In some implementations, the environmental simulation device includes an air pressure regulating component, a temperature regulating component, and a humidity regulating component, which are respectively communicatively connected to the controller; wherein the air pressure regulating component is used to regulate the air pressure in the test box; the temperature regulating component is used to regulate the temperature in the test box; and the humidity regulating component is used to regulate the humidity in the test box. In one or more implementations, the air pressure regulating component includes an air compressor, a vacuum pump, and a pressure detector, and the air compressor, the vacuum pump, and the pressure detector are respectively communicatively connected to the controller; wherein the air compressor is used to increase the air pressure in the test box; the vacuum pump is used to reduce the air pressure in the test box; the air pressure detector is used to detect the air pressure data in the test box in real time; and the controller is used to control the air compressor and the vacuum pump according to the air pressure data. In one or more implementations, the temperature regulating component includes a heater, a refrigerator, and a temperature detector, and the heater, the refrigerator, and the temperature detector are respectively communicatively connected to the controller; wherein the heater is used to increase the temperature in the test box; the refrigerator is used to reduce the temperature in the test box; the temperature detector is used to detect the temperature data in the test box in real time; and the controller is used to control the heater and the refrigerator according to the temperature data. In one or more implementation schemes, the humidity adjustment component includes a humidifier, a dehumidifier and a humidity detector, and the humidifier, the dehumidifier and the humidity detector are respectively communicatively connected to the controller; wherein the humidifier is used to increase the humidity in the test box; the dehumidifier is used to reduce the humidity in the test box; the humidity detector is used to detect the humidity data in the test box in real time; and the controller is used to control the humidifier and the dehumidifier according to the humidity data.

[0007] In some implementation schemes, the test box includes a box door and a box body, the box body has a box opening connected to the interior, the box door cover is arranged on the box opening and rotatably cooperates with the box body, the environmental simulation device, the product fixing device and the sound pickup fixing device are all arranged in the box body, and the inner walls of the box body and the box door are both provided with sound insulation layers.

[0008] The second aspect of the present application provides an acoustic product stress testing method, which is applied to the acoustic product stress testing device provided in the first aspect of the present application, including: controlling an environmental simulation device to adjust at least one environmental parameter in a test box to simulate different test environments in the test box; controlling the acoustic product to play test audio under different test environments; controlling a sound pickup device to obtain test audio data corresponding to the test audio by picking up sound under different test environments; comparing the test audio data under different test environments with reference audio data, and obtaining test results under different test environments based on the comparison results.

[0009] In some implementations, before the step of controlling the environment simulation device to adjust at least one environmental parameter in the test box, the method further includes: acquiring reference audio data.

[0010] In some implementations, the step of obtaining reference audio data includes: controlling the acoustic product to play reference audio in a standard environment; and controlling a sound pickup device to obtain reference audio data corresponding to the reference audio by picking up sound in the standard environment.

[0011] In some implementations, after the step of obtaining the reference audio data, the method further includes: verifying the reference audio data; if the verification succeeds, saving the reference audio data; if the verification fails, re-executing the step of obtaining the reference audio data.

[0012] In some implementation schemes, the step of verifying the reference audio data includes: playing the reference audio data and determining whether the playback of the reference audio data is normal; calculating a corresponding frequency spectrum curve based on the reference audio data, and determining whether the frequency spectrum curve is within a preset frame line; if the playback of the reference audio data is normal and the frequency spectrum curve is within the preset frame line, the reference audio data verification is successful.

[0013] In some implementation schemes, before the step of controlling the environmental simulation device to adjust at least one environmental parameter in the test box, it also includes: controlling the product displacement component to drive the product fixing part and the acoustic product to move synchronously in the test box, and controlling the sound pickup displacement component to drive the sound pickup fixing part and the sound pickup device to move synchronously in the test box, so that the sound speaker position of the acoustic product is aligned with the sound pickup position of the sound pickup device, and the distance between the speaker position and the sound pickup position is within a preset distance range.

[0014] In some implementations, the step of controlling the acoustic product to play the test audio in different test environments includes: in different test environments, controlling the acoustic product to play the test audio once every preset time in a test cycle. Further, the step of controlling the sound pickup device to obtain test audio data corresponding to the test audio by picking up sound in different test environments includes: in different test environments, controlling the sound pickup device to obtain a test audio data by picking up sound once every preset time in a test cycle. Further, the step of comparing the test audio data in different test environments with the reference audio data, and obtaining the test results in different test environments according to the comparison results includes: comparing each test audio data in different test environments with the reference audio data, and obtaining the test results in different test environments according to the comparison results.

[0015] In some implementations, each test audio data in different test environments is compared with the reference audio data, and the step of obtaining the test results in different test environments according to the comparison results includes: determining whether the similarity between each target test audio data in the target test environment and the reference audio data is greater than or equal to a preset similarity threshold; when the similarity between the target test audio data and the reference audio data is greater than or equal to the preset similarity threshold, assigning a qualified mark to the target test audio data; when the similarity between the target test audio data and the reference audio data is less than the preset similarity threshold, assigning an unqualified mark to the target test audio data; when multiple target test audio data in the target test environment are all assigned qualified marks, assigning a qualified mark to the target test environment; when there is at least one target test audio data assigned an unqualified mark in the target test environment, assigning an unqualified mark to the target test environment. In one or more implementations, after the step of obtaining the test results in different test environments according to the comparison results, it also includes: outputting a test report, the test report includes the reference audio data, the test mark of each test environment, each test audio data in each test environment and the corresponding test mark, and the test mark includes a qualified mark and an unqualified mark.

[0016] The acoustic product pressure test device provided in the first aspect of the present application is composed of a sound pickup device, a product fixture, a sound pickup fixture, an environment simulation device, a controller and a test box. The environment simulation device, the product fixture and the sound pickup fixture are all arranged in the test box. The product fixture is opposite to the sound pickup fixture and is spaced apart from each other. The sound pickup device is arranged on the sound pickup fixture. The product fixture is used to fix the acoustic product to be tested. The environment simulation device, the sound pickup device and the acoustic product are respectively connected to the controller for communication. In actual pressure testing, the environment simulation device can adjust at least one environmental parameter in the test box to simulate different test environments in the test box. The acoustic product can play test audio in different test environments. The sound pickup device can obtain test audio data corresponding to the test audio by picking up sound in different test environments. The controller can compare the test audio data in different test environments with the reference audio data respectively, and obtain the test results in different test environments based on the comparison results. It can be seen that in the stress testing process of acoustic products, the present application can use an environmental simulation device to simulate different test environments, and use a pickup device to collect test audio data corresponding to the test audio played by the acoustic product in different test environments. Finally, by comparing the test audio data in different test environments with the reference audio data, the test results in different test environments can be obtained. This enables the stress testing of the present application to adapt to different regions and different environments, thereby improving the comprehensiveness of the stress testing and the accuracy of the stress testing results, and thus avoiding the failure of the acoustic product or the occurrence of noise after it is put on the market.

[0017] The acoustic product pressure testing method provided in the second aspect of the present application is implemented based on the acoustic product pressure testing device provided in the first aspect of the present application. Therefore, the acoustic product pressure testing method has all the advantages of the acoustic product pressure testing device provided in the first aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the related technologies or the embodiments of the present application, the drawings required for use in the description of the related technologies or the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, not all embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of an acoustic product pressure measurement device provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the process flow of the acoustic product pressure testing method provided in an embodiment of the present application.

[0021] The symbols in the above drawings represent:

[0022] 100-test box, 200-sound pickup device, 300-product fixture, 400-sound pickup fixture. DETAILED DESCRIPTION

[0023] In the related art, the pressure test of acoustic products such as mobile phones, tablet computers, headphones, speakers, smart wearable devices, etc. is usually carried out under a single atmospheric pressure in the existing environment of the production site, which cannot adapt to different regions and different environments, resulting in inaccurate pressure test results. After the product is put on the market, it is easy to fail or produce noise. In view of this, the present application proposes an acoustic product pressure test device and method in the following embodiments to solve the above-mentioned drawbacks in the related art.

[0024] In order to make the purpose, technical solutions and advantages of the present application more obvious and easy to understand, the present application will be clearly and completely described below in conjunction with the embodiments of the present application and the corresponding drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. It should be understood that the embodiments of the present application described below are only used to explain the present application and are not used to limit the present application, that is, based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0025] See also Figure 1 , Figure 11 is a structural diagram of an acoustic product pressure test device. This embodiment provides an acoustic product pressure test device, which includes a controller (not shown), a test box 100, a sound pickup device 200, a product fixture 300, a sound pickup fixture 400, and an environment simulation device (not shown). The environment simulation device, the product fixture 300, and the sound pickup fixture 400 are all arranged inside the test box 100. The product fixture 300 and the sound pickup fixture 400 are opposite and spaced from each other. The sound pickup device 200 is arranged on the sound pickup fixture 400. The product fixture 300 is used to fix the acoustic product to be tested. The environment simulation device, the sound pickup device 200, and the acoustic product are respectively connected to the controller for communication. In this embodiment, the acoustic product can be various products commonly used in the field related to the generation, propagation, reception, control and processing of sound, such as mobile phones, headphones, speakers, tablet computers, smart wearable devices, etc., which can be selected according to actual needs, and this embodiment does not make a sole limitation on this; the sound pickup device 200 can be any device commonly used in the field with a sound pickup function, such as a dynamic microphone, a condenser microphone, an electret microphone, a piezoelectric pickup head, an electromagnetic pickup head, etc., which can be selected according to actual needs, and this embodiment does not make a sole limitation on this; the controller can adopt any device commonly used in the field with control and data processing and analysis functions, such as a microcontroller such as a small computer, a single-chip microcomputer, as well as an industrial control computer (IPC), a programmable logic controller (PLC) and a distributed control system (DCS), etc., and this embodiment does not make a sole limitation on this.

[0026] Specifically, the environmental simulation device is used to adjust at least one environmental parameter in the test box 100 to simulate different test environments in the test box 100; the acoustic product is used to play test audio in different test environments; the sound pickup device 200 is used to obtain test audio data corresponding to the test audio by picking up sound in different test environments; the controller is used to compare the test audio data in different test environments with the reference audio data, and obtain the test results in different test environments based on the comparison results.

[0027] That is to say, in the actual stress testing process, the controller can control the environmental simulation device to adjust at least one environmental parameter in the test box 100, such as air pressure, temperature, humidity, etc., so as to simulate different test environments in the test box 100; thereafter, in each test environment, the controller can control the acoustic product to play the test audio, and the controller can control the sound pickup device 200 to obtain test audio data corresponding to the test audio by picking up sound; finally, the controller can compare the test audio data under different test environments with the pre-stored reference audio data, and obtain the test results under different test environments based on the comparison results. In layman's terms, the controller can compare the test audio data under each test environment with the pre-stored reference audio data, and obtain the test results under each test environment based on the comparison results of the test audio data and the reference audio data under each test environment.

[0028] In this embodiment, the reference audio data is equivalent to a standard, which is pre-stored in the controller, which means that before using the environment simulation device to simulate different test environments in the test box 100, it is necessary to obtain the reference audio data, that is, to produce the reference audio data. As one or more implementations of this embodiment, when producing the reference audio data, the controller can control the acoustic product to play the reference audio in a standard environment, and at the same time control the sound pickup device 200 to obtain the reference audio data corresponding to the reference audio by picking up the sound in the standard environment. Since the environmental parameters in the standard environment are conventional, that is, normal temperature, normal pressure, normal humidity, etc., the audio data (that is, the reference audio data) collected by the sound pickup device 200 in the standard environment has reference value.

[0029] Furthermore, after the reference audio data is produced, it is still uncertain whether the produced reference audio data can be used. Therefore, after the reference audio data is produced, the reference audio data needs to be verified. If the reference audio data verification is successful, the reference audio data can be saved for subsequent use. If the reference audio data verification fails, the reference audio data needs to be re-produced until the verification is successful. As one or more implementations of this embodiment, when verifying the reference audio data, the reference audio data can be played and it can be determined whether the playback of the reference audio data is normal. The corresponding spectrum curve can also be calculated based on the reference audio data and it can be determined whether the spectrum curve is within the preset frame line. If the reference audio data is played normally and the spectrum curve is within the preset frame line, it means that the reference audio data verification is successful, otherwise it means that the reference audio data verification fails.

[0030] In this embodiment, the number of times the acoustic product plays the test audio in a single test environment is not limited to once, and the number of times the sound pickup device 200 picks up sound (i.e., the number of test audio data) is not limited to once. This can be set according to actual needs, and this embodiment does not make a sole limitation on this. Based on this, in the actual stress test process, under different test environments, the controller can control the acoustic product to play the test audio once every preset time in a test cycle, and under different test environments, the controller can also control the sound pickup device 200 to obtain a test audio data by picking up sound once every preset time in a test cycle. Finally, the sound pickup device 200 can obtain multiple test audio data (equal to its own number of pickups and the number of times the acoustic product plays the test audio), and then the controller can compare each test audio data in different test environments with the reference audio data, and obtain the test results in different test environments based on the comparison results, that is, according to the comparison results of all test audio data in each test environment with the reference audio data, the test results in each test environment are obtained.

[0031] For example, assuming that three test environments need to be tested, the three test environments are represented by A, B, and C respectively, and a test cycle is 24 hours and the preset duration is 2.4 hours. Then, in the actual stress test process, the controller will control the environmental simulation device to adjust at least one environmental parameter in the test box 100 to set the test box 100 to the test environment A. After that, a 24-hour test is required under the test environment A. The controller will control the acoustic product to play the test audio once every 2.4 hours, and control the pickup device 200 to play the test audio once every 2.4 hours. The sound pickup device 200 will obtain a test audio data after the sound pickup is picked up once. Finally, the sound pickup device 200 will obtain 10 test audio data (respectively represented by A1, A2, A3, A4, A5, A6, A7, A8, A9, A10). Then, the controller can compare A1, A2, A3, A4, A5, A6, A7, A8, A9, A10 with the reference audio data respectively and obtain 10 comparison results accordingly. The test result under the test environment A can be obtained by combining these 10 comparison results. After obtaining the test result under the test environment A, the controller will control the environment The simulation device adjusts at least one environmental parameter in the test box 100 to set the test box 100 to the test environment B. After that, a 24-hour test is performed in the test environment B. The controller controls the acoustic product to play the test audio once every 2.4 hours, and controls the sound pickup device 200 to obtain a test audio data by picking up the sound once every 2.4 hours. Finally, the sound pickup device 200 obtains 10 test audio data (respectively represented by B1, B2, B3, B4, B5, B6, B7, B8, B9, and B10). Then, the controller can set B1 to , B2, B3, B4, B5, B6, B7, B8, B9, and B10 are respectively compared with the reference audio data and 10 comparison results are obtained accordingly. The test result under test environment B can be obtained by combining these 10 comparison results. Similarly, after obtaining the test result under test environment B, the controller will control the environmental simulation device to adjust at least one environmental parameter in the test box 100 to set the test box 100 to test environment C, and then a 24-hour test is required under test environment C. Finally, the controller will obtain the test result under test environment C.

[0032] As one or more implementations of this embodiment, when the controller compares each test audio data in different test environments with the reference audio data, taking the target test environment among multiple test environments (the corresponding test audio data are all referred to as target test audio data) as an example, the controller will determine whether the similarity between each target test audio data in the target test environment and the reference audio data is greater than or equal to a preset similarity threshold. When the similarity between the target test audio data and the reference audio data is greater than or equal to the preset similarity threshold, it means that the two are highly consistent, and the controller will assign a qualified mark (such as "Pass") to the target test audio data. When the similarity between the target test audio data and the reference audio data is less than the preset similarity threshold, it means that the two are very different, and the controller will assign an unqualified mark (such as "Fail") to the target test audio data. Then, when multiple target test audio data in the target test environment are all assigned qualified marks, it means that the test result of the target test environment is "qualified", so the controller will assign a qualified mark to the target test environment. When there is at least one target test audio data in the target test environment that is assigned an unqualified mark, it means that the test result in the target test environment is "unqualified", and the controller will assign an unqualified mark to the target test environment. It is understandable that each test audio data in each test environment will eventually be assigned a test mark (ie, a qualified mark and a failed mark) to facilitate rapid positioning and analysis by test personnel.

[0033] Here, we still use the example given in the previous article. Assume that in test environment A, among the 10 test audio data A1, A2, A3, A4, A5, A6, A7, A8, A9, and A10, only A3 has a similarity with the reference audio data that is less than the preset similarity threshold, and the similarities between the other test audio data and the reference audio data are greater than or equal to the preset similarity threshold. Then the controller will assign "Fail" to the test audio data A3, and assign "Pass" to each of the test audio data A1, A2, A4, A5, A6, A7, A8, A9, and A10. However, since there is a test audio data A1 that is assigned "Fail" in test environment A, the controller will assign "Pass" to the test audio data A3. Audio data (i.e. A3), the controller will assign "Fail" to test environment A; assuming that in test environment B, among the 10 test audio data B1, B2, B3, B4, B5, B6, B7, B8, B9, and B10, the similarity between each test audio data and the reference audio data is greater than or equal to the preset similarity threshold, then the controller will assign "Pass" to each of the test audio data B1, B2, B3, B4, B5, B6, B7, B8, B9, and B10, and since all the test audio data under test environment B are assigned "Pass", the controller will assign "Pass" to test environment B.

[0034] In this embodiment, after the controller obtains the test results under different test environments, it can integrate the test results under different test environments and the various data involved in the stress testing process to output a complete test report. The test report may include but is not limited to reference audio data, test marks for each test environment, and each test audio data and corresponding test marks in each test environment. This makes it convenient for testers to understand the stress testing process and results more clearly.

[0035] As can be seen from the above, the present embodiment can utilize the environmental simulation device to simulate different test environments, and utilize the sound pickup device 200 to collect test audio data corresponding to the test audio played by the acoustic product under different test environments. Finally, by comparing the test audio data under different test environments with the reference audio data, the test results under different test environments can be obtained. This enables the stress test of the present embodiment to adapt to different regions and different environments, thereby improving the comprehensiveness of the stress test and the accuracy of the stress test results, thereby avoiding the failure of the acoustic product or the occurrence of noise after it is put on the market.

[0036] In some embodiments, see Figure 1 The product fixing device 300 includes a product displacement component (not shown) and a product fixing part (not shown), the product fixing part is arranged on the product displacement component, the acoustic product is arranged on the product fixing part so that the product fixing part fixes the acoustic product, and the product displacement component is communicatively connected to the controller; the sound pickup fixing device 400 includes a sound pickup displacement component (not shown) and a sound pickup fixing part (not shown), the sound pickup fixing part is arranged on the sound pickup displacement component, the sound pickup device 200 is arranged on the sound pickup fixing part so that the sound pickup fixing part fixes the sound pickup device 200, and the sound pickup displacement component is communicatively connected to the controller. Specifically, the product displacement assembly is used to drive the product fixing and the acoustic product to move synchronously in the test box 100; the sound pickup displacement assembly is used to drive the sound pickup fixing and the sound pickup device 200 to move synchronously in the test box 100; the controller is also used to control the product displacement assembly and the sound pickup displacement assembly before controlling the environment simulation device to adjust at least one environmental parameter in the test box 100 to simulate different test environments in the test box 100, so that the sound speaker position of the acoustic product is aligned with the sound pickup position of the sound pickup device 200, and the distance between the sound speaker position and the sound pickup position is within a preset distance range.

[0037] That is to say, in the actual stress test process, before using the environmental simulation device to simulate different test environments in the test box 100, it is necessary to use the product displacement component to drive the product fixture to move in the test box 100. Since the acoustic product is fixed on the product fixture, when the product fixture moves in the test box 100, the acoustic product will move synchronously with the product fixture. It is also necessary to use the sound pickup displacement component to drive the sound pickup fixture to move in the test box 100. Since the sound pickup device 200 is fixed on the sound pickup fixture, when the sound pickup fixture moves in the test box 100, the sound pickup device 200 will move synchronously with the sound pickup fixture. Finally, the sound projection position of the acoustic product is aligned with the sound pickup position of the sound pickup device 200 and the distance between the two is within the preset distance range. Only in this way can the sound pickup effect of the sound pickup device 200 be guaranteed, and the accuracy of the stress test results can be further improved.

[0038] It should be noted that the sound-speaking position of the acoustic product is the sound-speaking hole used by the speaker of the acoustic product when making sound, and the sound-speaking position of the sound-speaking device 200 is the sound-speaking hole used by the microphone of the sound-speaking device 200 when picking up sound. It should also be noted that the product displacement component can drive the product fixing part and the acoustic product to move synchronously in the x-axis, y-axis, and z-axis directions, and the sound-speaking displacement component can also drive the sound-speaking fixing part and the sound-speaking device 200 to move synchronously in the x-axis, y-axis, and z-axis directions. Since the technology of the three-degree-of-freedom displacement component in this field is relatively mature, this application does not make too many explanations on the structure and working principle of the product displacement component and the sound-speaking displacement component. In addition, it should be understood that if the sound speaker position of the acoustic product is to be aligned with the sound pickup position of the sound pickup device 200 and the distance between the two is within a preset distance range, then it is necessary to apply a positioning system. The positioning system can be commonly used in the field, such as a laser alignment system, a visual alignment system, an electromagnetic induction alignment system, an ultrasonic alignment system, an infrared alignment system, etc. The specific system can be selected according to actual needs, and this application does not make a sole limitation on this.

[0039] In some embodiments, see Figure 1, the environmental simulation device includes an air pressure regulating component (not shown), a temperature regulating component (not shown) and a humidity regulating component (not shown) which are respectively communicatively connected to the controller. Specifically, the air pressure regulating component is used to adjust the air pressure in the test box 100; the temperature regulating component is used to adjust the temperature in the test box 100; and the humidity regulating component is used to adjust the humidity in the test box 100. That is to say, in the actual pressure testing process, when it is necessary to simulate different test environments in the test box 100, the controller can control at least one of the air pressure regulating component, the temperature regulating component and the humidity regulating component, so as to adjust at least one of the air pressure, temperature and humidity in the test box 100, and thus construct different test environments in the test box 100; it can be understood that any change in the air pressure, temperature and humidity in the test box 100 will cause the test environment in the test box 100 to change. Of course, when adjusting the environmental parameters in the test box 100, it is not limited to adjusting the air pressure, temperature and humidity in the test box 100. In other embodiments, other environmental parameters in the test box 100 may also be adjusted, such as light intensity, noise level, pH, etc. The specific selection can be based on actual needs, and this application does not make the sole limitation on this.

[0040] As one or more embodiments, if it is desired to adjust the air pressure inside the test box 100, the air pressure adjustment component includes at least three parts, namely, a pressure increasing part, a pressure reducing part and an air pressure monitoring part. Based on this, the air pressure adjustment component includes an air compressor (not shown), a vacuum pump (not shown) and a pressure detector (not shown), and the air compressor, the vacuum pump and the pressure detector are respectively connected to the controller in communication. During the actual pressure testing process, when it is necessary to increase the air pressure in the test box 100, the controller starts the air compressor, which compresses the outside air and transports it to the test box 100 through a pipe and / or a pressure regulating valve, thereby increasing the air pressure in the test box 100; when it is necessary to reduce the air pressure in the test box 100, the controller starts the vacuum pump, which extracts the gas in the test box 100 and transports it to the outside of the test box 100 through a pipe and / or a pressure regulating valve, thereby reducing the air pressure in the test box 100; the air pressure detector can detect the air pressure data in the test box 100 in real time and transmit it to the controller. The controller can control the air compressor and the vacuum pump according to the air pressure data to maintain the air pressure in the test box 100 at the current test environment and avoid large fluctuations in the air pressure in the test box 100.

[0041] As one or more embodiments, if the temperature inside the test box 100 is to be adjusted, the temperature adjustment component includes at least three parts, namely, a heating part, a cooling part and a temperature monitoring part. Based on this, the temperature adjustment component includes a heater (not shown), a refrigerator (not shown) and a temperature detector (not shown), and the heater, refrigerator and temperature detector are respectively connected to the controller for communication. In the actual pressure test process, when it is necessary to increase the temperature inside the test box 100, the controller starts the heater (such as a resistance wire, a heating rod, etc.), and the heater generates heat after being energized, and transfers the generated heat to the air and objects in the test box 100 by heat conduction, convection and radiation, causing the temperature inside the test box 100 to rise; when it is necessary to lower the temperature inside the test box 100, the controller starts the refrigerator, which is composed of a compressor, a condenser, a throttle and an evaporator, etc. The compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant and transports it to the condenser, where the high-temperature and high-pressure gaseous refrigerant is in contact with the outside world. The air or cooling water undergoes heat exchange to release heat and condense into a medium-temperature and high-pressure liquid refrigerant. The medium-temperature and high-pressure liquid refrigerant is reduced in pressure and temperature by a throttle and becomes a low-temperature and low-pressure liquid refrigerant. The low-temperature and low-pressure liquid refrigerant flows to the evaporator. In the evaporator, the low-temperature and low-pressure liquid refrigerant absorbs the heat in the test box 100 and vaporizes into a low-temperature and low-pressure gaseous refrigerant and returns to the compressor, causing the temperature in the test box 100 to drop. The temperature detector can detect the temperature data in the test box 100 in real time and transmit it to the controller. The controller can control the heater and the refrigerator according to the temperature data to maintain the temperature in the test box 100 at the current test environment.

[0042] As one or more embodiments, if the humidity inside the test box 100 is to be regulated, the humidity regulating component includes at least three parts, namely, a humidifying part, a dehumidifying part and a humidity monitoring part. Based on this, the humidity regulating component includes a humidifier (not shown), a dehumidifier (not shown) and a humidity detector (not shown), and the humidifier, dehumidifier and humidity detector are respectively communicatively connected to the controller. In the actual pressure test process, when it is necessary to increase the humidity inside the test box 100, the controller starts the humidifier. If the humidifier adopts an ultrasonic humidifier, the ultrasonic humidifier will convert electrical energy into high-frequency mechanical vibrations to atomize water into tiny water droplets. The fan will blow these water droplets into the test box 100, increasing the water vapor content in the air in the test box 100. If the humidifier adopts a steam humidifier, the steam humidifier generates steam by heating water and transports it to the test box 100, causing the humidity inside the test box 100 to increase. When it is necessary to reduce the humidity inside the test box 100, the controller starts the dehumidifier. If the dehumidifier adopts a condensing If the dehumidifier is an adsorption dehumidifier, then the adsorption dehumidifier uses the adsorption effect of the adsorbent on water vapor to dehumidify, causing the humidity in the test box 100 to decrease; the humidity detector can detect the humidity data in the test box 100 in real time and transmit it to the controller, and the controller can control the humidifier and dehumidifier according to the humidity data to maintain the humidity in the test box 100 at the current test environment and avoid large fluctuations in the humidity in the test box 100.

[0043] In some embodiments, the test box 100 includes a box door (not shown) and a hollow box body (not shown), the box body has a box opening (not shown) connected to the interior, the box door cover is arranged on the box opening and rotates with the box body, and the environmental simulation device, the product fixing device 300 and the sound pickup fixing device 400 are all arranged in the box body. It can be understood that the test box 100 can be opened and closed by rotating the box door relative to the box body. When the test box 100 is opened, the acoustic product in the test box 100 can be replaced, and the product fixing device 300, the sound pickup fixing device 400 and the environmental simulation device in the test box 100 can also be maintained. When the test box 100 is closed, the test box 100 is a relatively closed space, which is convenient for the environmental simulation device to simulate various test environments in the test box 100. Preferably, a sound insulation layer is attached to the inner walls of the box body and the box door, so that the test box 100 has good sound insulation performance, can eliminate external interference during the pressure test and prevent sound leakage in the test box 100, so as to ensure the accuracy of the pressure test results. In addition, it should be noted that the material of the sound insulation layer can be any material with good sound insulation performance commonly used in the field, such as sound-absorbing foam, sound-absorbing cotton (such as rock wool, glass wool, etc.), sound insulation felt, sound insulation board (such as mineral wool board, gypsum board, etc.), rubber sound insulation pad, etc., which can be selected according to actual needs, and this application does not make a sole limitation on this.

[0044] See also Figure 2 , Figure 2 It is a flow chart of an acoustic product pressure testing method. This embodiment provides an acoustic product pressure testing method, which is applied to the controller of the acoustic product pressure testing device described above, and the acoustic product pressure testing method includes steps 201 to 204 (abbreviated as S201 to S204), namely: S201, controlling the environmental simulation device to adjust at least one environmental parameter in the test box to simulate different test environments in the test box; S202, controlling the acoustic product to play the test audio under different test environments; S203, controlling the sound pickup device to obtain test audio data corresponding to the test audio by picking up sound under different test environments; S204, comparing the test audio data under different test environments with the reference audio data, and obtaining the test results under different test environments according to the comparison results. It should be noted that for the unfinished description of the acoustic product pressure testing method, please refer to the relevant description of the acoustic product pressure testing device in the previous text, and this embodiment will not repeat it.

[0045] The above embodiments are only preferred implementations of the present application, and are not the only limitation on the acoustic product pressure testing device and method; in this regard, those skilled in the art can flexibly set them according to the actual application scenarios based on the above embodiments. It can be understood that through the implementation of the above embodiments of the present application, the acoustic product pressure testing device is jointly constituted by the sound pickup device 200, the product fixture 300, the sound pickup fixture 400, the environmental simulation device, the controller and the test box 100, etc. The environmental simulation device, the product fixture 300 and the sound pickup fixture 400 are all arranged in the test box 100, the product fixture 300 is opposite to the sound pickup fixture 400 and is spaced from each other, the sound pickup device 200 is arranged on the sound pickup fixture 400, the product fixture 300 is used to fix the acoustic product to be tested, and the environmental simulation device, the sound pickup device 200 and the acoustic product are respectively communicated and connected to the controller. In actual stress testing, the environmental simulation device can adjust at least one environmental parameter in the test box 100 to simulate different test environments in the test box 100, the acoustic product can play test audio in different test environments, the sound pickup device 200 can obtain test audio data corresponding to the test audio by picking up sound in different test environments, and the controller can compare the test audio data in different test environments with the reference audio data, and obtain the test results in different test environments according to the comparison results. It can be seen that in the stress testing process of acoustic products, the present application can use the environmental simulation device to simulate different test environments, and use the sound pickup device 200 to collect the test audio data corresponding to the test audio played by the acoustic product in different test environments. Finally, by comparing the test audio data in different test environments with the reference audio data, the test results in different test environments can be obtained. This enables the stress testing of the present application to adapt to different regions and different environments, thereby improving the comprehensiveness of the stress testing and the accuracy of the stress testing results, thereby avoiding the failure of the acoustic product or the occurrence of noise after it is put on the market.

[0046] It should be noted that the several embodiments shown in the present application above are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can refer to each other. It should also be noted that in the text description of the present application, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is such an actual relationship or order between these entities or operations. Further, the terms "include", "comprise" or any other corresponding variants are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only these elements, but also other elements that are not explicitly listed, or may also include elements inherent to such a process, method, article or device; and, in the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] In addition, by implementing the several embodiments shown above in the present application, professionals and technicians in this field can implement or use the present application. For the several embodiments shown above in the present application, various modifications will be obvious to professionals and technicians in this field, and the general principles defined in the present application can be implemented in other embodiments not shown without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the several embodiments shown above, but will conform to the widest range consistent with the principles and novel features disclosed in the present application.

Claims

1. An acoustic product pressure measurement device, characterized in that: The system comprises a controller, a test box, a sound pickup device, a product fixture, a sound pickup fixture and an environment simulation device. The environment simulation device, the product fixture and the sound pickup fixture are all arranged in the test box. The product fixture is opposite to the sound pickup fixture and is spaced from each other. The sound pickup device is arranged on the sound pickup fixture. The product fixture is used to fix the acoustic product to be tested. The environment simulation device, the sound pickup device and the acoustic product are respectively connected to the controller for communication. The environmental simulation device is used to adjust at least one environmental parameter in the test box to simulate different test environments in the test box; The acoustic product is used to play the test audio in different test environments; The sound pickup device is used to obtain test audio data corresponding to the test audio by picking up sound under different test environments; The controller is used to compare the test audio data under different test environments with the reference audio data respectively, and obtain the test results under different test environments according to the comparison results.

2. The acoustic product pressure measurement device according to claim 1, characterized in that: The product fixing device comprises a product displacement component and a product fixing part, the product fixing part is arranged on the product displacement component, the product fixing part is used to fix the acoustic product, and the product displacement component is communicatively connected to the controller; the sound pickup fixing device comprises a sound pickup displacement component and a sound pickup fixing part, the sound pickup fixing part is arranged on the sound pickup displacement component, the sound pickup device is arranged on the sound pickup fixing part, and the sound pickup displacement component is communicatively connected to the controller; The product displacement assembly is used to drive the product fixing member and the acoustic product to move synchronously in the test box; the sound pickup displacement assembly is used to drive the sound pickup fixing member and the sound pickup device to move synchronously in the test box; the controller is also used to control the product displacement assembly and the sound pickup displacement assembly, so that the sound speaker position of the acoustic product is aligned with the sound pickup position of the sound pickup device, and the distance between the sound speaker position and the sound pickup position is within a preset distance range.

3. The acoustic product pressure measurement device according to claim 1, characterized in that: The environment simulation device comprises an air pressure regulating component, a temperature regulating component and a humidity regulating component which are respectively communicatively connected to the controller, wherein: The air pressure regulating assembly is used to regulate the air pressure in the test box; The temperature regulating component is used to regulate the temperature in the test box; The humidity adjustment component is used to adjust the humidity in the test box.

4. The acoustic product pressure measurement device according to claim 3, characterized in that: The air pressure regulating assembly includes an air compressor, a vacuum pump and a pressure detector, and the air compressor, the vacuum pump and the pressure detector are respectively communicatively connected to the controller, wherein: The air compressor is used to increase the air pressure in the test box; The vacuum pump is used to reduce the air pressure in the test box; The air pressure detector is used to detect the air pressure data in the test box in real time; The controller is used to control the air compressor and the vacuum pump according to the air pressure data.

5. The acoustic product pressure measurement device according to claim 3, characterized in that: The temperature adjustment component includes a heater, a refrigerator and a temperature detector, and the heater, the refrigerator and the temperature detector are respectively communicatively connected to the controller, wherein: The heater is used to increase the temperature in the test box; The refrigerator is used to reduce the temperature in the test box; The temperature detector is used to detect the temperature data in the test box in real time; The controller is used to control the heater and the refrigerator according to the temperature data.

6. The acoustic product pressure measurement device according to claim 3, characterized in that: The humidity adjustment component includes a humidifier, a dehumidifier and a humidity detector, and the humidifier, the dehumidifier and the humidity detector are respectively communicatively connected to the controller, wherein: The humidifier is used to increase the humidity in the test box; The dehumidifier is used to reduce the humidity in the test box; The humidity detector is used to detect the humidity data in the test box in real time; The controller is used to control the humidifier and the dehumidifier according to the humidity data.

7. The acoustic product pressure measurement device according to claim 1, characterized in that: The test box includes a box door and a hollow box body, the box body has a box opening connected to the interior, the box door cover is arranged on the box opening, the box door and the box body are rotatably matched, the environment simulation device, the product fixing device and the sound pickup fixing device are all arranged in the box body, and the inner wall of the box body and the inner wall of the box door are both provided with a sound insulation layer.

8. A method for pressure testing an acoustic product, characterized in that: A controller for an acoustic product pressure measurement device according to any one of claims 1 to 7, comprising: Controlling the environment simulation device to adjust at least one environmental parameter in the test box to simulate different test environments in the test box; Controlling the acoustic product to play the test audio in different test environments; Controlling the sound pickup device to obtain test audio data corresponding to the test audio by picking up sound under different test environments; The test audio data under the different test environments are compared with the reference audio data respectively, and the test results under the different test environments are obtained according to the comparison results.

9. The acoustic product pressure measurement method according to claim 8, characterized in that: Before the step of controlling the environment simulation device to adjust at least one environmental parameter in the test box, the method further includes: Get reference audio data.

10. The acoustic product pressure measurement method according to claim 9, characterized in that: The step of obtaining reference audio data comprises: Control acoustic products to play reference audio in a standard environment; The sound pickup device is controlled to obtain reference audio data corresponding to the reference audio by picking up sound under the standard environment.

11. The acoustic product pressure measurement method according to claim 9, characterized in that: After the step of obtaining reference audio data, the method further includes: Verifying the reference audio data; If the verification is successful, the reference audio data is saved; If the verification fails, the step of obtaining the reference audio data is performed again.

12. The acoustic product pressure measurement method according to claim 11, characterized in that: The step of verifying the reference audio data comprises: Playing the reference audio data, and determining whether the playing of the reference audio data is normal; Calculating a corresponding frequency spectrum curve according to the reference audio data, and determining whether the frequency spectrum curve is within a preset frame line; If the playback of the reference audio data is normal and the frequency spectrum curve is within the preset frame line, the reference audio data verification is successful.

13. The acoustic product pressure measurement method according to claim 8, characterized in that: Before the step of controlling the environment simulation device to adjust at least one environmental parameter in the test box, the method further includes: Control the product displacement component to drive the product fixing part and the acoustic product to move synchronously in the test box, and control the sound pickup displacement component to drive the sound pickup fixing part and the sound pickup device to move synchronously in the test box, so that the sound speaker position of the acoustic product is aligned with the sound pickup position of the sound pickup device, and the distance between the sound speaker position and the sound pickup position is within a preset distance range.

14. The acoustic product pressure measurement method according to claim 8, characterized in that: The step of controlling the acoustic product to play the test audio in different test environments includes: Under different test environments, controlling the acoustic product to play the test audio once every preset time period within a test cycle; The step of controlling the sound pickup device to obtain test audio data corresponding to the test audio by picking up sound under different test environments comprises: Under different test environments, the sound pickup device is controlled to obtain a test audio data by picking up sound once every preset time period within a test cycle; The step of comparing the test audio data under different test environments with the reference audio data respectively, and obtaining the test results under different test environments according to the comparison results, comprises: Each of the test audio data under the different test environments is compared with the reference audio data, and the test results under the different test environments are obtained according to the comparison results.

15. The acoustic product pressure measurement method according to claim 14, characterized in that: The step of comparing each of the test audio data under the different test environments with the reference audio data and obtaining the test results under the different test environments according to the comparison results includes: Determine whether the similarity between each target test audio data and the reference audio data in the target test environment is greater than or equal to a preset similarity threshold; When the similarity between the target test audio data and the reference audio data is greater than or equal to the preset similarity threshold, assigning a qualified mark to the target test audio data; When the similarity between the target test audio data and the reference audio data is less than the preset similarity threshold, assigning a failure mark to the target test audio data; When the plurality of target test audio data in the target test environment are all assigned the qualified mark, assigning the qualified mark to the target test environment; When there is at least one target test audio data assigned with the unqualified mark in the target test environment, the unqualified mark is assigned to the target test environment.

16. The acoustic product pressure measurement method according to claim 15, characterized in that: After the step of obtaining the test results under different test environments according to the comparison results, the method further includes: Output a test report, wherein the test report includes the reference audio data, a test mark of each test environment, each test audio data under each test environment and the corresponding test mark, wherein the test mark includes the qualified mark and the unqualified mark.

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