Indoor environment noise reduction device

Abstract

The utility model discloses an indoor environment noise reduction device which comprises an automatic noise reduction device and a supporting device, the automatic noise reduction device is arranged on the supporting device, and the automatic noise reduction device comprises a noise reduction box, a loudspeaker, a supporting rod, a sound sensor, a PLC, a supporting shaft, a rotating chuck, a cross-shaped clamping groove, an energy storage power source and an audio analysis module. The loudspeaker is fixedly installed on one side of the noise reduction box, the supporting rod is fixedly connected to the middle of the top end of the noise reduction box, the four sound sensors are evenly and fixedly installed on the outer side of the top end of the supporting rod, and the PLC is fixedly installed in the noise reduction box. Through cooperation of the four sound sensors and the PLC, the device can accurately position a noise source and control the motor to turn the loudspeaker to the direction of the noise source, so that self-adaptive directional noise reduction is realized, the noise reduction effect is improved, and the flexibility and practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction processing, in particular to an indoor environment noise reduction device. Background Art

[0002] With the acceleration of urbanization, the noise problem in indoor environment has become increasingly prominent. Long-term noise exposure will cause harm to human health, such as affecting hearing, sleep quality and psychological state. Traditional sound insulation and noise reduction methods are mostly to install sound insulation materials on the wall. This method is early equipment and the later equipment is relatively cumbersome. Therefore, an indoor environment noise reduction device is urgently needed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide an indoor environment noise reduction device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an indoor environment noise reduction device, comprising an automatic noise reduction device and a supporting device, wherein the automatic noise reduction device is arranged on the supporting device, and the automatic noise reduction device comprises a noise reduction box, a speaker, a supporting rod, a sound sensor, a PLC controller, a supporting shaft, a rotating chuck, a cross slot, an energy storage power supply and an audio analysis module, wherein the speaker is fixedly mounted on one side of the noise reduction box, the supporting rod is fixedly connected to the middle of the top end of the noise reduction box, four sound sensors are evenly fixedly mounted on the outside of the top end of the supporting rod, the PLC controller is fixedly mounted inside the noise reduction box, the supporting shaft is fixedly connected to the middle of the bottom end of the noise reduction box, the rotating chuck is fixedly connected to the bottom end of the supporting shaft, the cross slot is opened in the middle of the bottom end of the rotating chuck, the energy storage power supply is fixedly mounted inside the noise reduction box, the audio analysis module is fixedly mounted inside the noise reduction box, and the energy storage power supply is located between the PLC controller and the audio analysis module.

[0005] Preferably, the supporting device includes a telescopic tripod, a clamping ring, a motor and a cross clamping block, the clamping ring is symmetrically arranged at the top of the telescopic tripod, and the bottom end of the clamping ring is fixedly installed on the top of the telescopic tripod, the motor is fixedly installed on the inner bottom end of the clamping ring, and the cross clamping block is fixedly connected to the driving end of the motor.

[0006] Preferably, the rotary chuck is rotatably clamped on the inner side of the clamping ring, and the cross clamping block is clamped and connected inside the cross clamping groove.

[0007] Preferably, the PLC controller is electrically connected to the speaker, the sound sensor, the audio analysis module and the motor respectively.

[0008] Preferably, the energy storage power supply is respectively electrically connected to the speaker, the sound sensor, the PLC controller, the audio analysis module and the motor by wire.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] Through the cooperation of four sound sensors and a PLC controller, the utility model can accurately locate the source of noise and control the motor to turn the speaker in the direction of the noise source, thereby achieving directional noise reduction and improving the noise reduction effect. The audio analysis module can analyze different types of noise and calculate the corresponding reverse sound wave vibration amplitude through the support of AI learning and noise database, so that the device can adapt to different noise environments and achieve adaptive noise reduction. The design of the telescopic tripod allows the device to be easily unfolded and folded as needed, which is convenient for carrying and deployment in different noise reduction areas, increasing the flexibility and practicality of the device, and adopts a modular design for easy maintenance and upgrading. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the automatic noise reduction device in the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the automatic noise reduction device in the utility model;

[0014] Figure 4 It is a schematic diagram of the structure of the support device in the utility model;

[0015] Figure 5 It is a schematic diagram of the structure of the supporting device in the utility model.

[0016] In the figure: 1-automatic noise reduction device, 2-support device, 3-noise reduction box, 4-speaker, 5-support rod, 6-sound sensor, 7-PLC controller, 8-support shaft, 9-rotating chuck, 10-cross card slot, 11-energy storage power supply, 12-audio analysis module, 13-telescopic tripod, 14-fixing ring, 15-motor, 16-cross card block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5 The utility model provides an embodiment: an indoor environment noise reduction device, comprising an automatic noise reduction device 1 and a supporting device 2, the automatic noise reduction device 1 is arranged on the supporting device 2, the automatic noise reduction device 1 comprises a noise reduction box 3, a speaker 4, a supporting rod 5, a sound sensor 6, a PLC controller 7, a supporting shaft 8, a rotating chuck 9, a cross slot 10, an energy storage power supply 11 and an audio analysis module 12, the speaker 4 is fixedly installed on one side of the noise reduction box 3, the supporting rod 5 is fixedly connected to the middle of the top of the noise reduction box 3, four sound sensors 6 are evenly fixedly installed on the outer side of the top of the supporting rod 5, the PLC controller 7 is fixedly installed inside the noise reduction box 3, the supporting shaft 8 is fixedly connected to the middle of the bottom end of the noise reduction box 3, the rotating chuck 9 is fixedly connected to the bottom end of the supporting shaft 8, the cross slot 10 is opened in the middle of the bottom end of the rotating chuck 9, the energy storage power supply 11 is fixedly installed inside the noise reduction box 3, the audio analysis module 12 is fixedly installed inside the noise reduction box 3, and the energy storage power supply 11 is located between the PLC controller 7 and the audio analysis module 12.

[0019] The supporting device 2 includes a telescopic tripod 13, a clamping ring 14, a motor 15 and a cross clamping block 16. The clamping ring 14 is symmetrically arranged at the top of the telescopic tripod 13, and the bottom end of the clamping ring 14 is fixedly installed on the top of the telescopic tripod 13. The motor 15 is fixedly installed at the inner bottom end of the clamping ring 14, and the cross clamping block 16 is fixedly connected to the driving end of the motor 15.

[0020] The rotating chuck 9 is rotatably clamped on the inner side of the clamping ring 14, and the cross clamping block 16 is clamped and connected to the inside of the cross clamping groove 10. The two clamping rings 14 clamp the rotating chuck 9 inside to limit the rotation of the rotating chuck 9. The rotating cross clamping block 16 drives the rotating chuck 9 to rotate by clamping in the inside of the cross clamping groove 10.

[0021] The PLC controller 7 is electrically connected to the speaker 4 , the sound sensor 6 , the audio analysis module 12 and the motor 15 respectively, so as to automatically control the noise reduction through the program written by the PLC controller 7 .

[0022] The energy storage power supply 11 is respectively electrically connected to the speaker 4 , the sound sensor 6 , the PLC controller 7 , the audio analysis module 12 and the motor 15 , and the convenience is improved by providing electric energy through the energy storage power supply 11 .

[0023] Working principle: During use, the program is first written through the PLC controller 7. The positions of the four sound sensors 6 correspond to the angles that the motor 15 needs to rotate. The audio analysis module 12 is equipped with a noise database, a noise sample library, and labeled data, and AI learning is performed, so that the audio analysis module 12 has the ability to analyze the sound waves received by the sound sensor 6 and calculate the amplitude of the reverse sound wave vibration. When noise reduction operation is required, the telescopic tripod 13 is extended and placed in the noise reduction area through external force. When the sound sensor 6 receives noise, the sound sensor 6 transmits the noise signal to the PLC controller 7. The PLC controller 7 controls the electric The machine 15 is started, and the driving end of the motor 15 drives the cross block 16 to rotate. The rotation of the cross block 16 drives the rotating chuck 9 to rotate inside the clamping ring 14, thereby driving the noise reduction box 3 to rotate so that the speaker 4 faces the direction of the noise source. The PLC controller 7 transmits the noise signal to the audio analysis module 12. The audio analysis module 12 analyzes the noise signal received by the sound sensor 6 and transmits the reverse sound wave vibration amplitude data that offsets the noise to the PLC controller 7. The PLC controller 7 receives the signal transmitted by the audio analysis module 12 to control the speaker 4 to emit a reverse sound wave amplitude. The reverse sound wave amplitude emitted by the speaker 4 offsets the noise sound wave, thereby achieving the effect of reducing noise.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An indoor environment noise reduction device, comprising an automatic noise reduction device (1) and a supporting device (2), characterized in that: The automatic noise reduction device (1) is arranged on the supporting device (2), and comprises a noise reduction box (3), a speaker (4), a supporting rod (5), a sound sensor (6), a PLC controller (7), a supporting shaft (8), a rotating chuck (9), a cross slot (10), an energy storage power supply (11) and an audio analysis module (12), wherein the speaker (4) is fixedly mounted on one side of the noise reduction box (3), the supporting rod (5) is fixedly connected to the middle of the top end of the noise reduction box (3), and four sound sensors (6) are evenly fixedly mounted on the outer side of the top end of the supporting rod (5). The PLC controller (7) is fixedly mounted inside the noise reduction box (3), the support shaft (8) is fixedly connected to the middle of the bottom end of the noise reduction box (3), the rotating chuck (9) is fixedly connected to the bottom end of the support shaft (8), the cross slot (10) is opened in the middle of the bottom end of the rotating chuck (9), the energy storage power supply (11) is fixedly mounted inside the noise reduction box (3), the audio analysis module (12) is fixedly mounted inside the noise reduction box (3), and the energy storage power supply (11) is located between the PLC controller (7) and the audio analysis module (12).

2. The indoor environment noise reduction device according to claim 1, characterized in that: The supporting device (2) comprises a telescopic tripod (13), a clamping ring (14), a motor (15) and a cross clamping block (16); the clamping ring (14) is symmetrically arranged on the top of the telescopic tripod (13), and the bottom end of the clamping ring (14) is fixedly mounted on the top of the telescopic tripod (13); the motor (15) is fixedly mounted on the inner bottom end of the clamping ring (14); and the cross clamping block (16) is fixedly connected to the driving end of the motor (15).

3. The indoor environment noise reduction device according to claim 2, characterized in that: The rotating chuck (9) is rotatably clamped on the inner side of the clamping ring (14), and the cross clamping block (16) is clamped and connected inside the cross clamping groove (10).

4. The indoor environment noise reduction device according to claim 3, characterized in that: The PLC controller (7) is respectively electrically connected to the speaker (4), the sound sensor (6), the audio analysis module (12) and the motor (15) by wires.

5. The indoor environment noise reduction device according to claim 4, characterized in that: The energy storage power source (11) is respectively electrically connected to the speaker (4), the sound sensor (6), the PLC controller (7), the audio analysis module (12) and the motor (15).

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