Noise detection system based on indoor sound insulation environment analysis

Abstract

The invention relates to the technical field of noise detection, in particular to a noise detection system based on indoor sound insulation environment analysis, which comprises an indoor sound insulation detection center, a test database, a working condition detection interference division unit, an outdoor noise propagation test unit, a sound insulation verification feedback unit, an indoor noise test unit and a test output unit, according to the method, the working condition detection interference coefficient of the noise detection related facility is preliminarily obtained and analyzed to judge whether the noise detection related facility itself causes error interference on detection so as to improve the effectiveness of the detection data, and noise detection analysis is performed from the outdoor angle and the indoor angle of the target soundproof room in an information progressive manner, so that the detection accuracy is improved. The target soundproof room is detected through internal and external soundproof detection modes, so that soundproof detection comprehensiveness and accuracy of the target soundproof room are improved, the soundproof effects of external noise and internal noise of the target soundproof room can be known respectively, and whether a soundproof material of the target soundproof room is qualified or not can be known visually.

Description

Technical Field

[0001] The present invention relates to the technical field of noise detection, and in particular to a noise detection system based on indoor sound insulation environment analysis. Background Art

[0002] A soundproof room is a device designed to reduce the impact of external noise on the internal environment. They are often used in scientific laboratories, audio recording studios, factories, medical facilities, and other places that require a quiet environment. The acoustic performance of the soundproof room is crucial to maintaining the quietness of the internal environment, so an effective noise measurement method is needed to verify its soundproofing performance.

[0003] Traditional noise measurement methods usually involve setting up a noise source outside the soundproof room, and then using a micro-microphone or other sensor to measure the noise level in the internal environment; however, the use of a single noise source detection method set up in the soundproof room cannot fully and effectively verify the sound insulation effect of the soundproof room, and cannot further analyze the impact of the noise source in the soundproof room on the noise of the external environment, thereby reducing the reliability and accuracy of noise detection in the soundproof room;

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a noise detection system based on indoor sound insulation environment analysis to solve the technical defects mentioned above. The present invention preliminarily performs an analysis on the interference coefficient of working condition detection of noise detection related facilities to determine whether the noise detection related facilities themselves cause error interference to the detection, so as to improve the validity of the detection data, and performs noise detection analysis from both outdoor and indoor angles of the target sound insulation room in an information progressive manner, that is, the target sound insulation room is detected by both internal and external sound insulation detection methods to improve the comprehensiveness and accuracy of the sound insulation detection of the target sound insulation room, which helps to understand the sound insulation effects of the target sound insulation room on external noise and internal noise respectively, and intuitively understand whether the sound insulation material of the target sound insulation room is qualified.

[0006] The object of the present invention can be achieved by the following technical solutions: a noise detection system based on indoor sound insulation environment analysis, comprising an indoor sound insulation detection center, a test database, a working condition detection interference division unit, an outdoor noise propagation test unit, a sound insulation verification feedback unit, an indoor noise test unit and a test output unit;

[0007] The indoor sound insulation detection center is used to retrieve the working condition interference information of noise detection related facilities from the test database, and send the working condition interference information to the working condition detection interference division unit;

[0008] The working condition detection interference division unit is used to obtain and analyze the working condition detection interference coefficient of the received working condition interference information, and to perform discrimination analysis on the obtained working condition detection interference coefficient to obtain a normal signal or an interference signal;

[0009] The external noise propagation test unit is used to respond to normal signals and collect mixed audio data. At the same time, it performs outdoor noise isolation evaluation feedback analysis on the mixed audio data, compares and analyzes the obtained sound insulation evaluation distance with the preset sound insulation evaluation distance threshold, and obtains material abnormality signals or material normal signals;

[0010] The sound insulation verification feedback unit is used to respond to the normal signal to perform outdoor noise verification feedback analysis on the audio feature image to obtain an external qualified signal or an external unqualified signal;

[0011] The indoor noise test unit is used to respond to normal signals, collect matching distances, and at the same time, perform quantitative analysis and processing based on the indoor noise test at the matching distance, perform discriminant analysis on the sound insulation evaluation coefficient obtained, and obtain an internal test qualified signal or an internal test unqualified signal.

[0012] Preferably, the process of obtaining and analyzing the working condition detection interference coefficient is as follows:

[0013] The noise detection period of the target soundproof room is collected and set as the time threshold, and the working condition interference information of the noise detection related facilities within the time threshold is obtained. The working condition interference information includes operating power and operating voltage. The noise detection related facilities include noise generating equipment and noise collecting equipment. The number of deviations of the corresponding values ​​of the working condition interference information from the standard working condition interference information is obtained, and the number of deviations of the corresponding values ​​of the working condition interference information from the standard working condition interference information is set as the working condition detection interference coefficient, and the working condition detection interference coefficient is discriminated and analyzed to obtain a normal signal or an interference signal.

[0014] Preferably, the outdoor noise isolation evaluation feedback analysis process is as follows:

[0015] The outside of the target soundproof room is divided into i sound-generating areas, where i is a natural number greater than zero; the inside of the target soundproof room is divided into m collection areas, where m is a natural number greater than zero; a noise-generating device is set in the sound-generating area; a noise-collecting device is set in the collection area; the noise-generating devices in the external sound-generating areas are controlled to work in turn; and mixed audio data of the noise-collecting devices in the collection areas are obtained, wherein the mixed audio data includes test mark audio and interference audio, and the interference audio includes human voice audio and mechanical sound audio of the noise-generating device;

[0016] Perform test audio screening analysis on the mixed audio data to obtain audio feature images of the noise collection device in each collection area of ​​the test marked audio in the mixed audio data;

[0017] Based on the audio feature image, the noise collection decibel mean of each collection area is obtained, and a noise collection decibel mean set Ai[ZF1, ZF2, ZF3, …, ZFm] of each collection area is constructed;

[0018] Get the mean of the set Ai, set the mean of the set Ai as the test sound insulation index Ai, and perform discrimination processing on the test sound insulation index Ai to obtain the effective sound insulation area and the invalid sound insulation area

[0019] The farthest straight-line distance between the noise-generating equipment and the target soundproof room in the effective soundproof area is obtained, and it is set as the soundproofing evaluation distance. The soundproofing evaluation distance is compared and analyzed with the preset soundproofing evaluation distance threshold to obtain a material abnormality signal or a material normal signal.

[0020] Preferably, the indoor noise test quantitative analysis processing process is as follows:

[0021] Based on the noise collection decibel mean set Ai[ZF1, ZF2, ZF3, ..., ZFm], the mean of the set Ai is obtained, and the mean of the set Ai is set as the test sound insulation index Ai, and the test sound insulation index Ai is obtained to be equal to the noise generation decibel value of the noise generating equipment in each external sound generating area at the corresponding moment of the preset test sound insulation index threshold; the noise generation decibel value is discriminated and processed to obtain the normal sound insulation area and the abnormal sound insulation area;

[0022] The shortest straight-line distance between the noise-generating device in the abnormal soundproof area and the target soundproof room is obtained, and the shortest straight-line distance between the noise-generating device in the abnormal soundproof area and the target soundproof room is set as the received decibel ranging value, and the received decibel ranging value is discriminated and analyzed: abnormal soundproofing signal or normal soundproofing signal;

[0023] If the material normal signal and the sound insulation normal signal are generated at the same time, an external qualified signal is obtained; if the material normal signal and the sound insulation normal signal are not generated at the same time, an external unqualified signal is obtained.

[0024] Preferably, the indoor noise test quantitative analysis processing process is as follows:

[0025] A noise generating device is set at the center point of the target soundproof room, and h noise collecting devices are placed outside the target soundproof room on the sound source diffusion path of the noise generating device, where h is a natural number greater than zero;

[0026] The straight-line distance between each noise collecting device and the center point of the noise generating device is obtained and set as the matching distance, and the standard decibel critical value FBh corresponding to each matching distance is obtained.

[0027] Preferably, the noise generating device in the target soundproof room is controlled to work, an audio feature image of the noise collecting device outside the target soundproof room is obtained, the noise collection decibel average of each outdoor noise collecting device is obtained based on the audio feature image, and the actual test noise value of the noise generating device corresponding to the moment when the noise collection decibel average received by the first noise collecting device is equal to the preset noise collection decibel average;

[0028] At the same time, the standard decibel critical value corresponding to the matching distance between the first noise collecting device and the noise generating device is obtained, and is set as the standard decibel critical value of the test surface;

[0029] The actual test noise value is compared and analyzed with the standard decibel critical value of the test surface to obtain a normal internal sound insulation signal or an abnormal internal sound insulation signal.

[0030] Preferably, the sound source diffusion path of the noise generating device in the target soundproof room is changed in sequence, and then the sound insulation test is performed on the surface to be tested of the target soundproof room, and the surface to be tested includes the left side and the front side of the target soundproof room. When the sound source diffusion path of the noise generating device is changed at the same time, the noise collecting device outside the target soundproof room is changed accordingly;

[0031] The number of generated internal sound insulation abnormal signals is obtained, and the number of generated internal sound insulation abnormal signals is set as the sound insulation evaluation coefficient, and the sound insulation evaluation coefficient is discriminated and analyzed to obtain an internal test qualified signal or an internal test unqualified signal.

[0032] The beneficial effects of the present invention are as follows:

[0033] (1) The present invention preliminarily performs an analysis on the interference coefficient of the working condition detection of the noise detection related facilities to determine whether the noise detection related facilities themselves cause error interference to the detection, so as to improve the validity of the detection data, and performs noise detection analysis from the outdoor and indoor perspectives of the target soundproof room in an information progressive manner, that is, the target soundproof room is detected by both internal and external sound insulation detection methods to improve the comprehensiveness and accuracy of the sound insulation detection of the target soundproof room, thereby helping to understand the sound insulation effect of the target soundproof room against external noise and internal noise respectively, and intuitively understand whether the sound insulation material of the target soundproof room is qualified;

[0034] (2) The present invention is based on the analysis of whether the target soundproof room is qualified for outdoor noise isolation, accompanied by outdoor noise verification feedback analysis, so as to comprehensively judge whether the external sound insulation effect and sound insulation materials of the target soundproof room are normal, which helps to improve the sound insulation detection efficiency and detection comprehensiveness of the target soundproof room. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below in conjunction with the accompanying drawings;

[0036] Figure 1It is a flowchart of the system of the present invention;

[0037] Figure 2 It is a local analysis reference diagram of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] See also Figure 1 to Figure 2 As shown, the present invention is a noise detection system based on indoor sound insulation environment analysis, including an indoor sound insulation detection center, a test database, a working condition detection interference division unit, an outdoor noise propagation test unit, a sound insulation verification feedback unit, an indoor noise test unit and a test output unit, the test database is connected to the indoor sound insulation detection center in a one-way communication, the indoor sound insulation detection center is connected to the working condition detection interference division unit in a one-way communication, the working condition detection interference division unit is connected to the test output unit in a one-way communication, the test output unit is connected to the outdoor noise propagation test unit, the sound insulation verification feedback unit and the indoor noise test unit in a two-way communication, and the outdoor noise propagation test unit is connected to the sound insulation verification feedback unit in a one-way communication;

[0041] The indoor sound insulation detection center is used to retrieve the working condition interference information of noise detection related facilities from the test database, and send the working condition interference information to the working condition detection interference division unit;

[0042] The working condition detection interference division unit is used to obtain and analyze the working condition detection interference coefficient of the received working condition interference information to determine whether the noise detection related facilities themselves cause error interference to the detection, so as to improve the validity of the detection data. The specific working condition detection interference coefficient acquisition and analysis process is as follows:

[0043] The noise detection period of the target soundproof room is collected and set as the time threshold. The working condition interference information of the noise detection related facilities within the time threshold is obtained. The working condition interference information includes operating power, operating voltage, etc. The noise detection related facilities include noise generating equipment and noise collecting equipment. The number of deviations of the corresponding values ​​of the working condition interference information from the standard working condition interference information is obtained, and the number of deviations of the corresponding values ​​of the working condition interference information from the standard working condition interference information is set as the working condition detection interference coefficient, and the working condition detection interference coefficient is discriminated and analyzed:

[0044] If the working condition detection interference coefficient is equal to zero, a normal signal is generated;

[0045] If the working condition detection interference coefficient is not equal to zero, an interference signal is generated, and the normal signal or the interference signal is sent to the test output unit. After receiving the normal signal or the interference signal, the test output unit immediately displays the preset warning text corresponding to the normal signal or the interference signal, so as to intuitively understand whether the noise detection related facilities themselves cause error interference to the detection, which in turn helps to make timely management and control adjustments to improve the effectiveness of the detection data.

[0046] Embodiment 2:

[0047] When a normal signal is generated, the outdoor noise propagation test unit is used to respond to the normal signal and collect mixed audio data. At the same time, the mixed audio data is subjected to outdoor noise isolation evaluation feedback analysis to determine whether the target soundproof room is qualified for outdoor noise isolation. The specific outdoor noise isolation evaluation feedback analysis process is as follows:

[0048] The outside of the target soundproof room is divided into i sound-generating areas, where i is a natural number greater than zero; the inside of the target soundproof room is divided into m collection areas, where m is a natural number greater than zero; a noise-generating device is set in the sound-generating area; a noise-collecting device is set in the collection area; the noise-generating devices in the external sound-generating areas are controlled to work in turn; and mixed audio data of the noise-collecting devices in the collection areas are obtained, wherein the mixed audio data includes test mark audio and interference audio, and the interference audio includes human voice audio, mechanical sound audio of the noise-generating device, etc.;

[0049] Perform test audio screening analysis on the mixed audio data to obtain audio feature images of the noise collection device in each collection area of ​​the test marked audio in the mixed audio data;

[0050] Based on the audio feature image, the noise collection decibel mean of each collection area is obtained, and a noise collection decibel mean set Ai[ZF1, ZF2, ZF3, …, ZFm] of each collection area is constructed;

[0051] Based on the noise collection decibel mean set Ai[ZF1, ZF2, ZF3, ..., ZFm], the mean of the set Ai is obtained, and the mean of the set Ai is set as the test sound insulation index Ai, and the test sound insulation index Ai is discriminated:

[0052] If the test sound insulation index Ai is less than the preset test sound insulation index threshold, the corresponding sound emission area is determined to be an effective sound insulation area;

[0053] If the test sound insulation index Ai is greater than or equal to the preset test sound insulation index threshold, the corresponding sound emission area is determined to be an invalid sound insulation area;

[0054] Get the farthest straight-line distance between the noise-generating device in the effective soundproof area and the target soundproof room, set the farthest straight-line distance between the noise-generating device in the effective soundproof area and the target soundproof room as the soundproof evaluation distance, and compare and analyze the soundproof evaluation distance with the preset soundproof evaluation distance threshold:

[0055] If the sound insulation evaluation distance is less than or equal to the preset sound insulation evaluation distance threshold, a material abnormality signal is generated;

[0056] If the sound insulation evaluation distance is greater than the preset sound insulation evaluation distance threshold, a normal material signal is generated;

[0057] The sound insulation verification feedback unit is used to respond to normal signals to perform outdoor noise verification feedback analysis on the audio feature image, so as to intuitively understand whether the external sound insulation effect of the target sound insulation room is normal and whether the sound insulation material of the target sound insulation room is qualified. At the same time, it helps to improve the sound insulation detection efficiency of the target sound insulation room. The specific outdoor noise verification feedback analysis process is as follows:

[0058] Control the noise generating devices in the external sound generating area to work in sequence, obtain the noise collection decibel mean of each collection area based on the audio feature image, and construct the noise collection decibel mean set Ai[ZF1, ZF2, ZF3, …, ZFm];

[0059] Based on the noise collection decibel mean set Ai[ZF1, ZF2, ZF3, ..., ZFm], the mean of the set Ai is obtained, and the mean of the set Ai is set as the test sound insulation index Ai, and the test sound insulation index Ai is obtained to be equal to the noise decibel value of the noise generating device in each external sound generating area at the corresponding moment of the preset test sound insulation index threshold;

[0060] In the embodiment of the present invention, the preset noise generation decibel value thresholds corresponding to each sound emission area are different;

[0061] And the decibel value of the noise is judged:

[0062] If the decibel value of the noise is greater than or equal to the preset decibel value threshold of the noise, the corresponding sound-generating area is determined to be a normal sound insulation area;

[0063] If the decibel value of the noise is less than the preset decibel value threshold of the noise, the corresponding sound-generating area is determined to be an abnormal sound insulation area;

[0064] The shortest straight-line distance between the noise-generating device in the abnormal soundproof area and the target soundproof room is obtained, and the shortest straight-line distance between the noise-generating device in the abnormal soundproof area and the target soundproof room is set as the received decibel ranging value, and the received decibel ranging value is discriminated and analyzed:

[0065] If the received decibel ranging value is less than or equal to the preset received decibel ranging value threshold, a sound insulation abnormality signal is generated;

[0066] If the received decibel ranging value is greater than the preset received decibel ranging value threshold, a sound insulation normal signal is generated;

[0067] If the material normal signal and the sound insulation normal signal are generated at the same time, an external qualified signal is obtained;

[0068] If the normal material signal and the normal sound insulation signal are not generated at the same time, an external unqualified signal is obtained, and the external qualified signal or the external unqualified signal is sent to the test output unit. After receiving the external qualified signal or the external unqualified signal, the test output unit immediately displays the preset warning text corresponding to the external qualified signal or the external unqualified signal, so as to intuitively understand whether the external sound insulation effect of the target sound insulation room is normal and whether the sound insulation material of the target sound insulation room is qualified, which helps to improve the sound insulation detection efficiency of the target sound insulation room.

[0069] Embodiment three:

[0070] The indoor noise test unit is used to respond to normal signals, collect matching distances, and perform quantitative analysis based on the indoor noise test at the matching distance, so as to intuitively understand whether the sound insulation effect of the target soundproof room is normal. The specific indoor noise test quantitative analysis process is as follows:

[0071] A noise generating device is set at the center point of the target soundproof room, and h noise collecting devices are placed outside the target soundproof room on the sound source diffusion path of the noise generating device, where h is a natural number greater than zero;

[0072] It should be noted that the sound source diffusion path passes through the surface to be tested, which includes the left side and the front side of the target soundproof room;

[0073] Obtain the straight-line distance between each noise collecting device and the center point of the noise generating device, set it as the matching distance, and obtain the standard decibel critical value FBh corresponding to each matching distance;

[0074] It should be noted that, when h=1, the standard decibel threshold value FB1 corresponds to the matching distance between the first noise collecting device and the noise generating device, and when h=2, the standard decibel threshold value FB2 corresponds to the matching distance between the second noise collecting device and the noise generating device, and so on;

[0075] Control the noise generating device inside the target soundproof room to work, obtain the audio feature image of the noise collecting device outside the target soundproof room, obtain the average noise collection decibel value of each outdoor noise collecting device based on the audio feature image, and obtain the actual test noise value of the noise generating device corresponding to the moment when the average noise collection decibel value received by the first noise collecting device is equal to the preset average noise collection decibel value;

[0076] At the same time, the standard decibel critical value corresponding to the matching distance between the first noise collecting device and the noise generating device is obtained, and is set as the standard decibel critical value of the test surface;

[0077] Compare and analyze the actual test noise value with the standard decibel critical value of the test surface:

[0078] If the actual test noise value is less than or equal to the standard decibel critical value of the test surface, a normal internal sound insulation signal is generated;

[0079] If the actual test noise value is greater than the standard decibel threshold of the test surface, an internal sound insulation abnormality signal is generated;

[0080] The sound source diffusion path of the noise generating equipment in the target soundproof room is changed in sequence, and then the sound insulation test is performed on the surface to be tested of the target soundproof room, which includes the left side and the front side of the target soundproof room. When the sound source diffusion path of the noise generating equipment is changed at the same time, the noise collecting equipment outside the target soundproof room is changed accordingly;

[0081] The number of generated internal sound insulation abnormal signals is obtained, and the number of generated internal sound insulation abnormal signals is set as the sound insulation evaluation coefficient, and the sound insulation evaluation coefficient is subjected to discriminant analysis:

[0082] If the sound insulation evaluation coefficient is equal to zero, an internal test qualified signal is generated;

[0083] If the sound insulation evaluation coefficient is not equal to zero, an internal test failure signal is generated, and the internal test pass signal or the internal test failure signal is sent to the test output unit. After receiving the internal test pass signal or the internal test failure signal, the test output unit immediately displays the preset warning text corresponding to the internal test pass signal or the internal test failure signal, so as to intuitively understand whether the internal sound insulation effect of the target sound insulation room is normal and whether the sound insulation material of the target sound insulation room is qualified. At the same time, it is helpful to improve the sound insulation detection efficiency of the target sound insulation room. At the same time, the target sound insulation room is detected by both internal and external sound insulation detection methods to improve the comprehensiveness and accuracy of the sound insulation detection of the target sound insulation room;

[0084] In summary, the present invention preliminarily performs an analysis on the interference coefficient of working condition detection of noise detection related facilities to determine whether the noise detection related facilities themselves cause error interference to the detection, so as to improve the validity of the detection data, and performs noise detection analysis from the outdoor and indoor perspectives of the target soundproof room in an information progressive manner, that is, the target soundproof room is detected by both internal and external sound insulation detection methods to improve the comprehensiveness and accuracy of the sound insulation detection of the target soundproof room, which helps to understand the sound insulation effect of the target soundproof room against external noise and internal noise respectively, and intuitively understand whether the sound insulation material of the target soundproof room is qualified;

[0085] The analysis of whether the target soundproof room is qualified for outdoor noise isolation is accompanied by outdoor noise verification feedback analysis, so as to comprehensively judge whether the external sound insulation effect and sound insulation materials of the target soundproof room are normal, which helps to improve the sound insulation detection efficiency and comprehensiveness of the target soundproof room.

[0086] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technicians in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0087] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A noise detection system based on indoor sound insulation environment analysis, characterized in that: It includes indoor sound insulation testing center, test database, working condition detection interference division unit, outdoor noise propagation test unit, sound insulation verification feedback unit, indoor noise test unit and test output unit; The indoor sound insulation detection center is used to retrieve the working condition interference information of noise detection related facilities from the test database, and send the working condition interference information to the working condition detection interference division unit; The working condition detection interference division unit is used to obtain and analyze the working condition detection interference coefficient of the received working condition interference information, and to perform discrimination analysis on the obtained working condition detection interference coefficient to obtain a normal signal or an interference signal; The external noise propagation test unit is used to respond to normal signals and collect mixed audio data. At the same time, it performs outdoor noise isolation evaluation feedback analysis on the mixed audio data, compares and analyzes the obtained sound insulation evaluation distance with the preset sound insulation evaluation distance threshold, and obtains material abnormality signals or material normal signals; The sound insulation verification feedback unit is used to respond to the normal signal to perform outdoor noise verification feedback analysis on the audio feature image to obtain an external qualified signal or an external unqualified signal; The indoor noise test unit is used to respond to normal signals, collect matching distances, and at the same time, perform quantitative analysis and processing based on the indoor noise test at the matching distance, perform discriminant analysis on the sound insulation evaluation coefficient obtained, and obtain an internal test qualified signal or an internal test unqualified signal.

2. The noise detection system based on indoor sound insulation environment analysis according to claim 1 is characterized in that: The process of obtaining and analyzing the working condition detection interference coefficient is as follows: The noise detection period of the target soundproof room is collected and set as the time threshold, and the working condition interference information of the noise detection related facilities within the time threshold is obtained. The working condition interference information includes operating power and operating voltage. The noise detection related facilities include noise generating equipment and noise collecting equipment. The number of deviations of the corresponding values ​​of the working condition interference information from the standard working condition interference information is obtained, and the number of deviations of the corresponding values ​​of the working condition interference information from the standard working condition interference information is set as the working condition detection interference coefficient, and the working condition detection interference coefficient is discriminated and analyzed to obtain a normal signal or an interference signal.

3. The noise detection system based on indoor sound insulation environment analysis according to claim 1 is characterized in that: The outdoor noise isolation evaluation feedback analysis process is as follows: The outside of the target soundproof room is divided into i sound-generating areas, where i is a natural number greater than zero; the inside of the target soundproof room is divided into m collection areas, where m is a natural number greater than zero; a noise-generating device is set in the sound-generating area; a noise-collecting device is set in the collection area; the noise-generating devices in the external sound-generating areas are controlled to work in turn; and mixed audio data of the noise-collecting devices in the collection areas are obtained, wherein the mixed audio data includes test mark audio and interference audio, and the interference audio includes human voice audio and mechanical sound audio of the noise-generating device; Perform test audio screening analysis on the mixed audio data to obtain audio feature images of the noise collection device in each collection area of ​​the test marked audio in the mixed audio data; Based on the audio feature image, the noise collection decibel mean of each collection area is obtained, and a noise collection decibel mean set Ai[ZF1, ZF2, ZF3, …, ZFm] of each collection area is constructed; Get the mean of the set Ai, set the mean of the set Ai as the test sound insulation index Ai, and perform discrimination processing on the test sound insulation index Ai to obtain the effective sound insulation area and the invalid sound insulation area The farthest straight-line distance between the noise-generating equipment and the target soundproof room in the effective soundproof area is obtained, and it is set as the soundproofing evaluation distance. The soundproofing evaluation distance is compared and analyzed with the preset soundproofing evaluation distance threshold to obtain a material abnormality signal or a material normal signal.

4. The noise detection system based on indoor sound insulation environment analysis according to claim 3 is characterized in that: The quantitative analysis and processing process of the indoor noise test is as follows: Based on the noise collection decibel mean set Ai[ZF1, ZF2, ZF3, ..., ZFm], the mean of the set Ai is obtained, and the mean of the set Ai is set as the test sound insulation index Ai, and the test sound insulation index Ai is obtained to be equal to the noise generation decibel value of the noise generating equipment in each external sound generating area at the corresponding moment of the preset test sound insulation index threshold; the noise generation decibel value is discriminated and processed to obtain the normal sound insulation area and the abnormal sound insulation area; The shortest straight-line distance between the noise-generating device in the abnormal soundproof area and the target soundproof room is obtained, and the shortest straight-line distance between the noise-generating device in the abnormal soundproof area and the target soundproof room is set as the received decibel ranging value, and the received decibel ranging value is discriminated and analyzed: abnormal soundproofing signal or normal soundproofing signal; If the material normal signal and the sound insulation normal signal are generated at the same time, an external qualified signal is obtained; If the normal material signal and the normal sound insulation signal are not generated at the same time, an external unqualified signal is obtained.

5. The noise detection system based on indoor sound insulation environment analysis according to claim 1 is characterized in that: The quantitative analysis and processing process of the indoor noise test is as follows: A noise generating device is set at the center point of the target soundproof room, and h noise collecting devices are placed outside the target soundproof room on the sound source diffusion path of the noise generating device, where h is a natural number greater than zero; The straight-line distance between each noise collecting device and the center point of the noise generating device is obtained and set as the matching distance, and the standard decibel critical value FBh corresponding to each matching distance is obtained.

6. The noise detection system based on indoor sound insulation environment analysis according to claim 5 is characterized in that: Control the noise generating device inside the target soundproof room to work, obtain the audio feature image of the noise collecting device outside the target soundproof room, obtain the average noise collection decibel value of each outdoor noise collecting device based on the audio feature image, and obtain the actual test noise value of the noise generating device corresponding to the moment when the average noise collection decibel value received by the first noise collecting device is equal to the preset average noise collection decibel value; At the same time, the standard decibel critical value corresponding to the matching distance between the first noise collecting device and the noise generating device is obtained, and is set as the standard decibel critical value of the test surface; The actual test noise value is compared and analyzed with the standard decibel critical value of the test surface to obtain a normal internal sound insulation signal or an abnormal internal sound insulation signal.

7. The noise detection system based on indoor sound insulation environment analysis according to claim 6 is characterized in that: The sound source diffusion path of the noise generating equipment in the target soundproof room is changed in sequence, and then the sound insulation test is performed on the surface to be tested of the target soundproof room, which includes the left and front of the target soundproof room. When the sound source diffusion path of the noise generating equipment is changed at the same time, the noise collecting equipment outside the target soundproof room is changed accordingly; The number of generated internal sound insulation abnormal signals is obtained, and the number of generated internal sound insulation abnormal signals is set as the sound insulation evaluation coefficient, and the sound insulation evaluation coefficient is discriminated and analyzed to obtain an internal test qualified signal or an internal test unqualified signal.

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