A device for measuring sound insulation using an automatic scanning sound intensity method

Abstract

This utility model belongs to the field of sound insulation measurement and discloses an automatic scanning sound intensity method for measuring sound insulation. Its features include: a computer with a human-machine interface, an Arduino microcontroller, a three-axis linear slide module, and a sound intensity analyzer. The computer is connected to the Arduino microcontroller, which is connected to the motor drivers of the three-axis linear slide module. The sound intensity probe of the sound intensity analyzer is fixed on the end slide of the three-axis linear slide module. This device can not only automatically execute the sound intensity probe scanning path, but also set parameters such as scanning speed and measurement surface size through the human-machine interface, and display the scanning line trajectory. This not only reduces the influence of manual measurement on the measurement results and improves measurement accuracy and reliability, but also makes operation simple and intuitive.

Description

Technical Field

[0001] This utility model belongs to the field of sound insulation measurement, specifically relating to a device for measuring sound insulation using an automatic scanning sound intensity method. Background Technology

[0002] With social progress, accelerated urbanization, and rapid development of various industries, noise issues are receiving increasing attention. Noise pollution can harm human health and affect people's quality of life. The quality of sound insulation performance is related to the development of acoustics in various industries, making it particularly important.

[0003] In the measurement of sound insulation, the sound intensity method is widely used as an option. It has advantages such as suppressing the effects of background noise and lateral sound transmission, and can identify weak points in sound insulation while measuring sound insulation. However, traditional sound intensity methods for measuring sound insulation typically involve manual handheld measurement with a sound intensity probe, which suffers from drawbacks such as unstable scanning paths and high labor intensity. Therefore, manual handheld measurement is often difficult to implement for large-area scanning. Liu Xudong mentioned a 3-TPT three-degree-of-freedom parallel mechanism in the application of parallel mechanisms in the automatic measurement of server noise. This mechanism consists of three retractable chains that achieve three-dimensional planar motion through linear motors, servo motors, and ball bearings. Shangguan Wenbin and Yuan Zhongxiang used a semi-automatic sound intensity measurement bracket. The designed portal-type semi-automatic bracket has two motion axes, horizontal and vertical, with a probe mounted on the vertical axis. The horizontal and vertical movement of the axes is controlled by manually loosening and tightening the bolts on the horizontal and vertical axes, thereby moving the probe and measuring the sound intensity. In their fully automatic sound intensity measurement bracket and method, Luo Zhuhui et al. employed a gantry bracket, a horizontal drive assembly, and a lifting drive assembly, with separate switches for horizontal and vertical movement. These switches controlled the sliding of the drive assembly, enabling the probe to move horizontally, vertically, and in a semi-circular motion on a two-dimensional surface. All of the aforementioned automatic sound intensity scanning devices require manual intervention from the measurement personnel to operate and control the sliding table or switches. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic scanning sound intensity method for measuring sound insulation. This device achieves automatic scanning for sound insulation measurement using the sound intensity method, which not only reduces the influence of manual measurement on the measurement results and improves the accuracy and reliability of sound insulation measurement, but also makes the operation simple and intuitive.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic scanning sound intensity method for measuring sound insulation is characterized by comprising: a computer with a human-machine interface, an Arduino microcontroller, a three-axis linear slide module, and a sound intensity analyzer; the computer is connected to the Arduino microcontroller, the Arduino microcontroller is connected to the motor drivers of each motor in the three-axis linear slide module, and the sound intensity probe of the sound intensity analyzer is fixed on the end slide of the three-axis linear slide module.

[0007] Preferably, the three-axis linear slide module is composed of three gantry-style stacked linear modules.

[0008] More preferably, the linear module is a synchronous belt slide module.

[0009] Preferably, the Arduino microcontroller is connected to each motor driver of the three-axis linear slide module using a common cathode connection.

[0010] Preferably, the Arduino microcontroller is an Arduino Uno R3.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model has a human-machine interface, an Arduino control device, and a three-axis linear slide module, which enables the execution of the sound intensity probe scanning path, setting of parameters such as scanning speed and measurement surface size, and realizing automatic scanning for sound insulation measurement by sound intensity method; thus, it not only reduces the influence of manual measurement on the measurement results, but also improves the accuracy and reliability of sound insulation measurement.

[0013] 2. This utility model features two control hardware devices, a computer and an Arduino microcontroller, for automatic operation, which facilitates testing and debugging. Moreover, the human-machine interface is simple and intuitive to operate.

[0014] 3. The three-axis linear slide module of this utility model uses a gantry-type synchronous belt slide controlled by a stepper motor, which has high motion accuracy, stability and reliability. Attached Figure Description

[0015] Figure 1 This is a circuit connection diagram of an automatic scanning sound intensity method for measuring sound insulation according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the three-axis linear slide module according to an embodiment of the present invention. Figure 1 ;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the three-axis linear slide module according to an embodiment of the present invention. Figure 2 .

[0018] In the diagram: 1. First linear module, 2. Second linear module, 3. Third linear module, 11. First motor, 21. Second motor, 31. Third motor, 12. First slide, 22. Second slide, 32. Third slide. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following embodiments are described in detail with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0020] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two elements. When two elements are "fixedly connected" or "rotationally connected," the two elements can be directly connected or there may be an intermediate element. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The fixed or fixed connection method can be screwed, welded, riveted, plugged, or connected through a third component. Those skilled in the art will understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] This embodiment of an automatic scanning sound intensity method for measuring sound insulation includes: a computer, an Arduino microcontroller, a three-axis linear slide module, and a sound intensity analyzer; the computer has a human-machine interface.

[0022] like Figure 1 As shown in the circuit connection diagram, the computer is connected to the Arduino microcontroller via a USB serial port; the Arduino microcontroller is connected to each motor driver of the three-axis linear slide module using a common cathode connection.

[0023] like Figure 2As shown in Figure 3, the three-axis linear slide module consists of three gantry-style stacked linear modules. The second linear module 2 is mounted on the first slide 12 of the first linear module 1, and the third linear module 3 is mounted on the second slide 22 of the second linear module 2. The first linear module 1 uses a parallel double slide-rail structure controlled by the same motor, while the second and third linear modules 2 and 3 are slide-rail structures, offering good structural stability. In use, the slide rail of the first linear module 1 is fixed to the operating table, and the sound intensity probe 4 of the sound intensity analyzer is fixed to the end slide of the three-axis linear slide module (the third slide 32 of the third linear module 3). The three motor drivers—the first motor 11, the second motor 21, and the third motor 31—used to control the movement of the first slide 12, the second slide 22, and the third slide 32, are connected to the control terminal of the Arduino microcontroller. The first linear module 1, the second linear module 2, and the third linear module 3 control the linear movement of the sound intensity probe 4 in the X, Y, and Z directions, respectively, to achieve three-dimensional sound intensity scanning. Preferably, the three-axis linear slide module uses a synchronous belt slide with low motion noise. The first motor 11, the second motor 21, and the third motor 31 are all 57 stepper motors with high torque, high resolution, and low heat generation. Each motor driver is a TB6600 driver, which has strong driving force, large load, high position accuracy, and adjustable stepper motor microstepping and current, giving the three-axis linear slide module better stability and reliability. In addition, silicone damping pads are added at the connection between each motor and the slide module to reduce noise caused by slide rail vibration during movement.

[0024] This embodiment describes an automatic scanning sound intensity method for measuring sound insulation. The required parameters, such as the size of the measurement surface and the speed, are set through a human-machine interface and sent to an Arduino. The Arduino microcontroller then automatically scans and measures the sound insulation according to the planned path.

[0025] The specific operation steps of the device for measuring sound insulation using the automatic scanning sound intensity method in this embodiment are as follows:

[0026] (1) The measurement personnel select the horizontal and vertical scanning modes, input parameters such as scanning speed, scanning line density, measurement distance and measurement surface size, and calculate relevant motion parameters and set the scanning path according to the national measurement standard GB / T31004.1-2014; (2) The measurement personnel click to send data and send the data to the Arduino microcontroller; (3) Click the start button, and after the Arduino initialization operation, start each motor of the three-axis linear slide module, control the sound intensity probe to move automatically according to the scanning path, that is, to automatically scan the measurement surface and measure the sound insulation; the sound insulation measurement result data is fed back to the sound intensity analyzer; the computer reads the position of each motor (corresponding to the position of the sound intensity probe) returned by the Arduino every 0.5s and displays it in real time on the human-machine interface; (4) After the scanning is completed, the scanning mode can be switched and the measurement can be performed again; (5) After the measurement, the three-axis linear slide module is automatically reset.

[0027] Using an Arduino microcontroller as the main control board offers advantages such as ease of use, cost-effectiveness, and convenient testing and debugging. This embodiment preferably uses the Arduino Uno R3 as the microcontroller board. A computer with a human-machine interface is used as the window for displaying the measurement path and inputting measurement test conditions, resulting in simple and direct operation, strong versatility, and reduced equipment hardware costs.

[0028] This embodiment of an automatic scanning sound intensity method for measuring sound insulation not only allows setting parameters such as scanning speed and measurement surface size through a human-machine interface, but also automatically executes the sound intensity probe scanning path and displays the scanning line trajectory. It can replace the traditional manual measurement method, reducing errors caused by inaccurate control of the scanning path and speed in manual measurement, achieving fully automatic and intelligent measurement, reducing the workload of measurement personnel, and improving the accuracy and reliability of measurement.

[0029] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Various modifications or variations that can be made by those skilled in the art within the scope of the appended claims without creative effort are still within the scope of protection of this patent.

Claims

1. A device for measuring sound transmission loss by automatic scanning sound intensity method, characterized by, include: The system includes a computer with a human-machine interface, an Arduino microcontroller, a three-axis linear slide module, and a sound intensity analyzer. The computer is connected to an Arduino microcontroller, which is connected to the motor drivers of the three-axis linear slide module. The sound intensity probe of the sound intensity analyzer is fixed on the end slide of the three-axis linear slide module.

2. A device for measuring sound insulation according to claim 1, wherein The three-axis linear slide module consists of three gantry-style stacked linear modules.

3. The device for measuring sound insulation using the automatic scanning sound intensity method as described in claim 2, characterized in that, The linear module is a synchronous belt slide module.

4. The device for measuring sound insulation using the automatic scanning sound intensity method as described in claim 1, characterized in that, The Arduino microcontroller is connected to each motor driver of the three-axis linear slide module using a common cathode connection.

5. The device for measuring sound insulation using the automatic scanning sound intensity method as described in claim 1, characterized in that, The Arduino microcontroller is an Arduino Uno R3.

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