Noise analogue simulation acquisition control system and method

Abstract

The invention discloses a noise analogue simulation acquisition control system and method. The system is used for acquiring accurate noise signals generated by sound source equipment under set conditions. The system comprises sound source equipment, power equipment, working condition configuration equipment and acquisition and storage equipment, the power equipment is connected with the sound source equipment and is used for providing driving power required by the sound source equipment; the working condition configuration equipment is used for providing required working condition configuration for the operation of the sound source equipment; the acquisition and storage device is used for acquiring noise data of the sound source device under set working condition configuration. The method has the advantages that the noise generated by the sound source equipment is measured through analog simulation, interference of other external noise on the noise of the sound source equipment is reduced, the acquisition accuracy of the noise of the sound source equipment is improved, and basic data are provided for researching noise data of the sound source equipment under different working conditions.

Description

Technical Field

[0001] The invention relates to the field of noise simulation and measurement, and particularly designs a noise simulation acquisition control system and method. Background Art

[0002] Noise pollution is one of the issues that cannot be ignored in modern urban life. It not only affects people's daily quality of life, but may also have long-term impacts on human physical and mental health. Many countries around the world have proposed noise-related regulations, and more and more attention has been paid to the requirements of noise performance in various standards.

[0003] In many industrial fields, manufacturers or their products are themselves noise sources, and the characteristics of noise sources are increasingly becoming important performance indicators of products. Researching and controlling noise sources is of great significance for improving the compliance capabilities of enterprises, improving product performance, and enhancing the market competitiveness of products.

[0004] In real life, the characteristics of sound sources are often very complex, and the superposition of various sound propagation paths often makes direct research on noise very difficult. Sound source equipment is the producer of noise, and the development of research on sound sources is of great significance to noise control. However, the sound source equipment itself is often a key component in the system, and its working conditions are complex. The noise of the sound source equipment directly measured is the data after superimposing a variety of noises, which is very unfavorable for the noise research and processing of the sound source equipment. It is impossible to identify the noise under specific working conditions or conditions, and it is impossible to collect the noise generated by the sound source equipment itself under specific conditions. It is impossible to effectively analyze and study the noise of the sound source equipment, and it is impossible to provide basic research parameters for the subsequent reduction and elimination of noise. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a noise simulation acquisition control system and method, which measures the noise generated by the sound source equipment through simulation, reduces the interference of other external noises on the noise of the sound source equipment, improves the accuracy of the acquisition of the noise of the sound source equipment, and provides basic data for studying the noise data of the sound source equipment under different working conditions.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a noise simulation and acquisition control system, the system is used to collect accurate noise signals generated by a sound source device under set conditions; the system includes a sound source device, a power device, a working condition configuration device, and an acquisition and storage device; the power device is connected to the sound source device to provide the driving power required by the sound source device; the working condition configuration device is used to provide the required working condition configuration for the operation of the sound source device; the acquisition and storage device is used to collect noise data of the sound source device under the set working condition configuration.

[0007] The sound source device is a device that generates noise when driven by a power device. The power device includes an external power unit and a transmission unit. The external power unit is used to generate a power signal that is transmitted to the sound source device via the transmission unit. The sound source device moves under the power drive to generate a noise signal.

[0008] The sound source device has an air inlet, which is connected to an air intake pipe. A standing wave tube and a noise measurement module are respectively arranged on the air intake pipe. The noise measurement module is connected to the air inlet after passing through the standing wave tube; the output end of the noise measurement module is connected to a collection and storage device.

[0009] The working condition configuration device includes a host control unit and a first throttle valve; the first throttle valve is arranged in the intake pipe; the control end of the first throttle valve is connected to the host control unit for controlling the air flow in the intake pipe.

[0010] The working condition configuration device also includes an adjustable air pressure source, which is connected to the upper control unit and is used to control the air pressure provided by the adjustable air pressure source; the adjustable air pressure source is connected to the intake pipe and is used to provide intake air pressure to enter the sound source device through the intake pipe.

[0011] The working condition configuration device also includes a heater, and the control end of the heater is connected to the upper control unit to control the working state of the heater; the gas provided by the adjustable air pressure source passes through the heater and then is sent to the sound source device through the air intake pipe.

[0012] The working condition configuration device also includes an automatic pressure regulating tank, a control end of which is connected to a host control unit, and the automatic pressure regulating tank is connected to an air outlet of the sound source device via an air outlet pipe.

[0013] The acquisition and storage device includes a first acquisition unit, a second acquisition unit, an AD sampling module, and an acoustic signal post-processing unit. The first acquisition unit acquires gas parameters of an air intake pipe, and an output end thereof is connected to the acoustic signal post-processing unit via the AD sampling module; the second acquisition unit is used to acquire gas parameters in an air outlet pipe, and an output end thereof is connected to the acoustic signal post-processing unit via the AD sampling module; the noise measurement module is connected to the acoustic signal post-processing unit via the AD sampling module, and the acoustic signal post-processing unit processes the acquired data to obtain a corresponding noise signal under the working state of the simulated sound source device.

[0014] The sound source device and / or the power device is provided with a sound-absorbing and sound-isolating unit to prevent interference from external sound sources.

[0015] A control method for a noise simulation acquisition control system, comprising:

[0016] The configuration parameters under the set target working conditions are entered through the upper control unit, and the ambient noise floor is measured and recorded through the noise measurement module at this time; then the external power unit is started to drive the sound source device to work, so that the sound source device simulates working according to the configuration parameters under normal working conditions, and then the sound signal post-processing unit 12 is used to check whether the sound source simulation device operates normally. After achieving the predetermined goal, the collected noise signal and the working status data of the sound source device are processed and archived as the noise data of the sound source device under the configuration parameter conditions.

[0017] The advantages of the present invention are: by measuring the noise generated by the sound source device through simulation, the interference of other external noises on the noise of the sound source device is reduced, the accuracy of the noise collection of the sound source device is improved, basic data is provided for studying the noise data of the sound source device under different working conditions, and basic measurement equipment is provided for the research of noise. The measurement system is compatible with a variety of sound source devices, has strong compatibility, and can be reused. It also has the following technical features:

[0018] 1. The present invention adopts external power to drive the sound source device, thereby avoiding the complex noise in the normal working condition of the sound source and being able to efficiently identify the target noise.

[0019] 2. The sound source working condition simulation device in the present invention controls the working conditions of the sound source and other components according to the actual working conditions, so as to achieve the purpose of simulating the working environment of the sound source.

[0020] 3. The post-processing module in the present invention reads and vector-operates the target noise data in real time, processes the acoustic signal in real time, extracts the characteristics of the noise data, and records the test conditions, which is highly efficient and convenient for troubleshooting and repeated verification.

[0021] 4. The sound source simulation device of the present invention is provided with an anechoic chamber, anechoic components, and sound insulation components to eliminate external noise and improve measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0023] Figure 1 It is a schematic diagram of the arrangement of the measuring system device of the present invention;

[0024] Figure 2 It is a process flow chart of the present invention;

[0025] Figure 3 This is a flow chart of the acoustic signal processing of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of electronic equipment corresponding to the upper control unit and / or the acoustic signal post-processing unit of the present invention.

[0027] The marks in the above figures are: 1-automatic pressure regulating tank; 2-first flow meter; 3-first pressure sensor; 4-first throttle valve; 5-sound source equipment; 6-sound source sound insulation unit; 7-external power sound insulation unit; 8-transmission unit; 9-external power unit; 10-upper control unit; 11-A / D converter; 12-acoustic signal post-processing unit; 13-standing wave tube; 14-noise measurement module; 15-second flow meter; 16-second pressure sensor; 17-second throttle valve; 18-heater; 19-adjustable air pressure source. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0029] The present embodiment provides a device, method, electronic device, and storage medium that can simulate a sound source in real time. The scheme drives the sound source through an external power to simulate the normal working state of the sound source and exclude noise other than the target noise of the sound source. The working state of the sound source is controlled by an electronic device with real-time calculation and storage. In this process, the working state parameters and noise parameters of each component in the real-time storage device are stored. The sound signal is processed by an electronic device with real-time calculation and storage, and the sound source data is output to the storage medium in real time, thereby improving the measurement efficiency. The present invention simplifies the various noises of the sound source itself through an external power to achieve the purpose of accurately measuring the target noise. The sound source simulation device reduces the interference of external noise on the target noise by setting up components such as an anechoic chamber and a standing wave tube. In the present invention, the external working environment and noise propagation path of the sound source are simulated by setting a throttle valve, an air tank, and a heater to improve the simulation accuracy of the sound source.

[0030] The starting point of the scheme of this embodiment is that some parts of the prior art will generate noise during operation. We call these parts sound source devices. When the sound source devices are working, they will generate noise. Generally, these noises need to be reduced. However, the noise data collected during the actual working process of these noises are the noises superimposed in multiple working environments. In its real working scene, it is impossible to collect and obtain accurate noises generated by the sound source devices themselves. Therefore, it is impossible to accurately collect the noise data of the sound source devices under different working conditions, and then provide basic parameters for noise research. Taking the automobile engine as an example, when the automobile engine is loaded on the automobile, the noise it generates is the noise superimposed by various equipment environments. It is impossible to study the engine noise data under different working conditions or environmental configuration parameters, and it is impossible to provide basic research data for the subsequent noise reduction of the engine. Therefore, this scheme designs a simulation measurement device that can realize the simulation measurement of the noise of the engine to obtain noise data under different configuration conditions, and provide accurate test data for subsequent noise research.

[0031] like Figure 1 As shown, this embodiment provides a noise simulation acquisition control system, which is used to collect accurate noise signals generated by a sound source device under set conditions; the system includes a sound source device, a power device, a working condition configuration device, and an acquisition storage device;

[0032] The power device is connected to the sound source device to provide the driving power required by the sound source device;

[0033] The working condition configuration device is used to provide the required working condition configuration for the operation of the sound source device; the acquisition storage device is used to collect the noise data of the sound source device under the set working condition configuration.

[0034] During operation, the working condition configuration device configures the sound source device to the working condition required for research and allows the sound source device to operate. The power for the operation of the sound source device is provided by the power device. When the sound source device operates under the configured working condition parameters, the noise data of the sound source device under the current public configuration and the sound source device's own state data are collected and recorded and stored through the acquisition and storage device. The recorded and stored data are all important parameters and noises of the sound source device under working conditions, providing basic research data for subsequent research on noise elimination.

[0035] The sound source device is a device that generates noise when driven by a power device. The power device includes an external power unit and a transmission unit. The external power unit is used to generate a power signal and transmit it to the sound source device through the transmission unit. The sound source device moves under the power drive to generate a noise signal. The sound source device refers to a type of device that requires external power to move. The sound source device will generate sound noise when working, so the sound source device needs an external power device to achieve work control. For example, the sound source device can be an engine, a compressor, etc. Taking the engine as an example, its work requires external power to drive it, so the external power unit drives the sound source device through the transmission unit to control the work of the sound source device. The external power unit can be a motor. The rotation signal output by the motor M transmits power to the engine through the transmission unit, so that the engine follows the action, thereby acting as a power source for the engine action.

[0036] The sound source device has an air inlet and an air outlet, and the air inlet and the air outlet are respectively provided with an air intake pipe and an air outlet pipe connected thereto, and then different components are arranged on the air outlet pipe and the air inlet pipe, and the configuration is completed through the working condition configuration device to meet the data collection of the sound source device under different working conditions. Taking the engine as an example, it has an air inlet and an air outlet, and then the pressure, temperature, etc. of the intake and degassing are adjusted and controlled to realize the test of the engine noise under different working conditions, thereby achieving the purpose of accurately obtaining the engine noise under different configuration parameters.

[0037] The air inlet is connected to the air intake pipe, on which a standing wave tube and a noise measurement module are respectively arranged. The noise measurement module is connected to the air inlet after passing through the standing wave tube; the output end of the noise measurement module is connected to the collection and storage device.

[0038] The working condition configuration device includes a host control unit and a first throttle valve; the first throttle valve is arranged in the intake pipe; the control end of the first throttle valve is connected to the host control unit to control the air flow in the intake pipe. The working condition configuration can configure the parameters of the intake flow to meet the intake requirements of different engines.

[0039] In this embodiment, an adjustable air pressure source can be additionally provided according to the working conditions of the sound source device. The adjustable air pressure source is connected to the upper control unit for controlling the air pressure provided by the adjustable air pressure source. The adjustable air pressure source is connected to the air intake pipe for providing the intake air pressure to enter the sound source device through the air intake pipe, thereby realizing that air pressure sources of different pressures provide gas for the sound source device.

[0040] In this embodiment, a heater is configured according to different requirements of the sound source device for intake air, and a control end of the heater is connected to a host control unit to control the working state of the heater; the gas provided by the adjustable air pressure source passes through the heater and then is sent to the sound source device through an intake pipe, thereby controlling the intake pressure and temperature to meet the intake requirements under different working conditions of the engine.

[0041] The air outlet of the sound source device is also provided with a working condition configuration device. In this case, the device provided at the air outlet includes an automatic pressure regulating tank, the control end of which is connected to the upper control unit, and the automatic pressure regulating tank is connected to the air outlet of the sound source device via an air outlet pipe. A second throttle valve is also provided on the pipe at the air outlet to control the air outlet volume.

[0042] The acquisition storage device includes a first acquisition unit, a second acquisition unit, an AD sampling module, and an acoustic signal post-processing unit. The first acquisition unit acquires gas parameters of the air inlet pipe, and its output end is connected to the acoustic signal post-processing unit through the AD sampling module; the second acquisition unit is used to acquire gas parameters in the air outlet pipe, and its output end is connected to the acoustic signal post-processing unit through the AD sampling module; the noise measurement module is connected to the acoustic signal post-processing unit through the AD sampling module, and the acoustic signal post-processing unit processes the acquired data to obtain the corresponding noise signal under the simulated working state of the sound source device. The first acquisition module includes a first pressure sensor and a first flowmeter, and the second acquisition module includes a second flowmeter and a second pressure sensor. The data acquired by the first and second acquisition modules, the noise data acquired by the noise measurement module, and the operating state data of the sound source device itself are converted into digital signal data after AD sampling and sent to the acoustic signal post-processing unit for processing and then stored in the memory, as the noise basic parameter data of the sound source device under the current configuration working condition. The noise basic parameter data can provide basic data for subsequent noise research.

[0043] In order to collect more accurate noise data, a sound-absorbing and sound-isolating unit is provided on the sound source equipment and / or the power equipment to prevent interference from external sound sources.

[0044] like Figure 1 As shown, taking the sound source device as an engine as an example, devices of the same type as the engine that require external power to work and have air inlets and outlets can all use this solution to collect and test noise under different working conditions. The present invention is a method, device, electronic device, and storage medium for real-time sound source simulation, including an adjustable air pressure source 19, which is connected to a heater 18 through a pipeline. The adjustable air pressure source 19 and the heater 18 are controlled by the upper control unit 10 together, and adjust their own output conditions according to the preset target conditions to provide the sound source device 5 with external input conditions consistent with the actual working conditions. That is, the adjustable air pressure source and the heater are adjusted by the upper computer control method to provide the noise-related data of the engine under the required test or the working condition of interest. Therefore, the air pressure and temperature data of the intake air under the working condition of interest are set at this time, and the air pressure data is provided by the adjustable air pressure source, and then the required heated air source is obtained by heating the heater.

[0045] Furthermore, the throttle valve 17 installed after the heater 18 is controlled by the upper control unit 10 to adjust the gas flow entering the sound source device 5. The throttle valve 17 is connected to the noise measurement module 14 through a pipeline, and a flow meter 15 and a pressure sensor 16 are installed between the noise measurement module 14 and the throttle valve 17 respectively, which are used to monitor the inlet flow and inlet pressure of the sound source device 5. The noise measurement module 14 is installed on the sound source device 5 through a standing wave tube 13, and the standing wave tube 13 is used to separate the incident sound pressure, reflected sound pressure and transmitted sound pressure transmitted by the sound source device 5 to improve the measurement accuracy. The heated gas passes through the pipeline and is successively sent to the air inlet of the sound source device after passing through the first throttle valve, the first flow meter, the first pressure sensor, the noise measurement module, and the standing wave tube arranged on the pipeline.

[0046] The sound source device 5 is covered by the sound source sound-absorbing and sound-insulating unit 6 as the target to be measured. The sound-absorbing and sound-insulating unit 6 has the function of isolating external noise and non-target noise of the sound source device 5 to avoid affecting the noise measurement module 14. The sound-absorbing and sound-insulating unit 6 is a component that has both sound-absorbing and sound-insulating capabilities, and is composed of a microscopically porous sound-absorbing material and a sound-insulating board with a large acoustic impedance. The sound-absorbing material is cut into a shape with a gradual change in acoustic impedance, which can improve the performance of the overall sound-absorbing and sound-insulating unit. The sound-insulating board has a large density and thickness. Similar to the sound source device 5, the external power unit 9 is covered by the external power sound-absorbing and sound-insulating unit 7. The function of the external power sound-absorbing and sound-insulating unit 7 is to isolate the noise of the external power unit 9 to avoid affecting the sound source device 5 and the noise measurement module 14. The external power sound-absorbing and sound-insulating unit 7 is a component that has both sound-absorbing and sound-insulating capabilities, and is composed of a microscopically porous sound-absorbing material and a sound-insulating board with a relatively large acoustic impedance, wherein the sound-absorbing material is cut into a shape with a gradual change in acoustic impedance, which can improve the performance of the overall sound-absorbing and sound-insulating unit. The external power unit 9 transmits power to the sound source device 5 through the transmission unit 8, simulating the normal working state of the sound source device 5.

[0047] The external power unit 9 is controlled by the upper control unit 10 to output a preset speed and torque. The external power unit is a motor device that provides speed and torque, and then provides power for the engine through a transmission mechanism, and transmits the power to the engine through the transmission mechanism for operation.

[0048] The throttle valve 4 is connected to the sound source device 5 to control the outlet flow condition of the sound source device. The throttle valve 4 is controlled by the upper control unit 10 to adjust the outlet pipe opening according to preset parameters. The flow meter 2 and the pressure sensor 3 are respectively connected to the outlet pipe to measure the gas pressure and gas flow at the outlet of the sound source device 5. The automatic pressure regulating tank 1 has the ability to autonomously adjust the internal air pressure according to the control signal of the upper control unit 10. The automatic pressure regulating tank is directly connected to the flow meter 2 to provide the outlet pressure condition for the sound source device 5.

[0049] The A / D converter 11 is connected to the noise measurement module 14 through a wiring harness to obtain multi-channel acoustic signals. The A / D converter 11 simultaneously obtains the status information of each component of the automatic pressure regulating tank 1, flow meter 2, pressure sensor 3, flow meter 15; pressure sensor 16, and heater 18. The acoustic signal post-processing unit 12 obtains the converted acoustic signal from the A / D converter 11, and judges the status of the current sound source simulation device based on the data processing statistical results of the status signals of the automatic pressure regulating tank 1, flow meter 2, pressure sensor 3, flow meter 15, pressure sensor 16, and heater 18, such as obtaining the variance, and according to the judgment result, the acoustic signal is eliminated, windowed, and filtered, and finally the pure sound source target noise and the status information of the sound source simulation device corresponding to the noise signal are obtained, and finally the acoustic signal is feature analyzed, and the result is stored in the storage medium of the acoustic signal post-processing unit 12. The acoustic signal post-processing unit 12 has an output component that outputs the status information of the sound source simulation device in real time.

[0050] The aforementioned upper control unit can control the sound source simulation device according to the preset transient or steady-state operating condition information, and can convert the corresponding operating condition of the sound source simulation device in real time. Combined with the sound signal post-processing unit 12 to monitor the real-time status of the sound source simulation device, the entire sound source simulation device can test the target noise of the sound source in real time, quickly and efficiently.

[0051] like Figure 2 As shown, the implementation process of the present invention is as follows: the upper control unit 10 first reads in the various preset values ​​of the target working condition. Then, the external power unit 9 is started, and the environmental background noise is measured through the noise measurement module 14, and the background noise is recorded in the storage medium of the sound signal post-processing unit to facilitate subsequent processing of the target noise. Then, the transmission unit is turned on to make the sound source device simulate normal working conditions. The transmission unit includes an elastic coupling, a power cut-off device, and a transmission rod assembly. The upper control unit 10 applies the preset parameters to the relevant equipment, and checks whether the sound source simulation device is operating normally through the sound signal post-processing unit 12. After reaching the predetermined goal, the state information of the sound signal and the sound source simulation device is recorded, and after the abnormal data is eliminated and the filtering and denoising are performed by the sound signal post-processing unit 12, the characteristic analysis of the noise data is performed, such as order analysis, power spectrum density analysis, statistical distribution characteristics, etc. Finally, the noise data is archived and stored. The processing flow of the sound signal is as follows Figure 3 As shown: the original sound signal collected by the noise measurement module is processed by linear filtering and noise reduction together with the background noise reference signal through spectral subtraction to obtain a preliminary processed noise signal. The noise signal is then subjected to acoustic signal feature analysis to obtain the analysis result. The analysis result and process data are archived and stored to provide basic research data for subsequent noise elimination and reduction.

[0052] The upper control unit and the acoustic signal post-processing unit in this embodiment are both electronic devices with data processing and control functions. The structure diagram of a typical electronic device that can complete the upper control unit 10 and the acoustic signal post-processing unit 12 is as follows: Figure 4 It should be noted that Figure 4 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application. Figure 4 As shown, the electronic device includes a central processing unit (CPU) E01, which can load data or programs stored in a read-only memory (ROM) E02 or data or programs read from an external removable storage medium from a storage unit E04 or an I / O unit E05 into a random access memory (RAM) E03, thereby performing various actions and processes, such as executing the method described in the above embodiment. The display and operation unit E06 includes devices such as a mouse and a keyboard for input, and also includes output devices such as various types of displays and speakers.

[0053] The units involved in the embodiments of the present application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0054] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A noise simulation acquisition control system, the system is used to collect accurate noise signals generated by sound source equipment under set conditions; characterized in that: The system includes a sound source device, a power device, a working condition configuration device, and a collection and storage device; the power device is connected to the sound source device and is used to provide the driving power required by the sound source device; the working condition configuration device is used to provide the required working condition configuration for the operation of the sound source device; The acquisition storage device is used to acquire noise data of the sound source device under a set working condition configuration.

2. A noise simulation acquisition and control system as claimed in claim 1, characterized in that: The sound source device is a device that generates noise when driven by a power device. The power device includes an external power unit and a transmission unit. The external power unit is used to generate a power signal that is transmitted to the sound source device via the transmission unit. The sound source device moves under the power drive to generate a noise signal.

3. A noise simulation acquisition and control system as claimed in claim 1, characterized in that: The sound source device has an air inlet, which is connected to an air intake pipe. A standing wave tube and a noise measurement module are respectively arranged on the air intake pipe. The noise measurement module is connected to the air inlet after passing through the standing wave tube; the output end of the noise measurement module is connected to a collection and storage device.

4. A noise simulation acquisition and control system as claimed in claim 3, characterized in that: The working condition configuration device includes a host control unit and a first throttle valve; the first throttle valve is arranged in the intake pipe; the control end of the first throttle valve is connected to the host control unit for controlling the air flow in the intake pipe.

5. A noise simulation acquisition and control system as claimed in claim 4, characterized in that: The working condition configuration device also includes an adjustable air pressure source, which is connected to the upper control unit and is used to control the air pressure provided by the adjustable air pressure source; the adjustable air pressure source is connected to the intake pipe and is used to provide intake air pressure to enter the sound source device through the intake pipe.

6. A noise simulation acquisition and control system as claimed in claim 5, characterized in that: The working condition configuration device also includes a heater, and the control end of the heater is connected to the upper control unit to control the working state of the heater; the gas provided by the adjustable air pressure source passes through the heater and then is sent to the sound source device through the air intake pipe.

7. A noise simulation acquisition and control system as claimed in claim 3, characterized in that: The working condition configuration device also includes an automatic pressure regulating tank, a control end of which is connected to a host control unit, and the automatic pressure regulating tank is connected to an air outlet of the sound source device via an air outlet pipe.

8. A noise simulation acquisition and control system as described in any one of claims 1 to 7, characterized in that: The acquisition and storage device includes a first acquisition unit, a second acquisition unit, an AD sampling module, and an acoustic signal post-processing unit. The first acquisition unit acquires gas parameters of an air intake pipe, and an output end thereof is connected to the acoustic signal post-processing unit via the AD sampling module; the second acquisition unit is used to acquire gas parameters in an air outlet pipe, and an output end thereof is connected to the acoustic signal post-processing unit via the AD sampling module; the noise measurement module is connected to the acoustic signal post-processing unit via the AD sampling module, and the acoustic signal post-processing unit processes the acquired data to obtain a corresponding noise signal under the working state of the simulated sound source device.

9. A noise simulation acquisition and control system as described in any one of claims 1 to 7, characterized in that: The sound source device and / or the power device is provided with a sound-absorbing and sound-isolating unit to prevent interference from external sound sources.

10. A control method for a noise simulation acquisition control system according to any one of claims 1 to 9, characterized in that: The configuration parameters under the set target working conditions are entered through the upper control unit, and the ambient noise floor is measured and recorded through the noise measurement module at this time; then the external power unit is started to drive the sound source device to work, so that the sound source device simulates working according to the configuration parameters under normal working conditions, and then the sound signal post-processing unit 12 is used to check whether the sound source simulation device operates normally. After achieving the predetermined goal, the collected noise signal and the working status data of the sound source device are processed and archived as the noise data of the sound source device under the configuration parameter conditions.

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