Sound noise reduction method and device based on multi-modal sensor fusion

Abstract

The invention relates to the technical field of sound equipment noise reduction, and discloses a multi-modal sensor fused sound equipment noise reduction method and device, and the device comprises a sound equipment body, a loudspeaker is installed on the surface of the sound equipment body, a noise reduction mechanism is arranged on the surface of the sound equipment body, and the noise reduction mechanism comprises an inclination angle sensor. The tilt angle sensor is mounted on the upper surface of the sound equipment body, and two symmetrically arranged mounting seats are fixedly connected to the two sides of the sound equipment body. According to the invention, when a working area is in an inclined state, real-time monitoring is carried out by combining an inclination angle sensor and a vibration sensor, abnormal conditions of inclination and vibration are accurately identified, and adjusting mechanisms such as a telescopic rod are started, so that noise generated by inclination of the sound equipment body is eliminated from a mechanical adjustment angle, and the sound equipment is ensured to stably work in a complex and uneven environment; the use scene of the sound equipment is greatly expanded, and normal operation of the sound equipment can be guaranteed no matter on the indoor uneven ground or on the outdoor rugged site.

Description

Technical Field

[0001] The present invention relates to the technical field of audio noise reduction, and in particular to an audio noise reduction method and device using multimodal sensor fusion. Background Art

[0002] Speakers are devices that convert electrical signals into sound signals for playback. They primarily consist of a sound source, amplifier, and speakers. Widely used in home theaters, stage performances, conference venues, and more, they provide high-quality listening enjoyment and create a desired acoustic atmosphere. They are an indispensable audio device in modern life.

[0003] Currently, most audio systems are often placed on a table for use. When the table is tilted, the sound-generating units inside the audio system, such as the speaker, can easily deviate from their normal position, resulting in an uneven gap between the voice coil and the magnet. This leads to an uneven driving force when current passes through the voice coil, causing the diaphragm to vibrate irregularly and generate noise. To address this issue, we propose an audio noise reduction method and device using multimodal sensor fusion. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides an audio noise reduction method and device using multimodal sensor fusion, which solves the problem that most existing audio systems are often placed on a table for use. When the table is tilted, the sound-emitting units inside the audio system, such as speakers, can easily deviate from their normal positions, resulting in an uneven gap between the voice coil and the magnet. The driving force generated when the current passes through the voice coil is unbalanced, causing the diaphragm to vibrate irregularly, thereby generating noise.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method and device for audio noise reduction by multimodal sensor fusion, comprising an audio body, a speaker mounted on the surface of the audio body, a noise reduction mechanism provided on the surface of the audio body, the noise reduction mechanism comprising an inclination sensor, the inclination sensor mounted on the upper surface of the audio body, two symmetrically arranged mounting seats fixedly connected on both sides of the audio body, a vibration sensor fixedly connected to the mounting seat, a threaded sleeve rotatably connected to the upper surface of the audio body, a screw threadedly connected to the threaded sleeve, a pull rope fixedly connected to the upper end of the screw, and a fixed connection to the interior of the audio body. There is a circuit board, a processing module is installed on the lower surface of the circuit board, a transmitting module is installed on the lower surface of the circuit board, a receiving module is installed on the lower surface of the circuit board, and a counterweight is installed on the lower surface of the speaker body. When the working area is in a tilted state, the inclination sensor and the vibration sensor are combined for real-time monitoring, and the abnormal tilt and vibration conditions are accurately identified and the adjustment mechanisms such as the telescopic rod are activated. From the perspective of mechanical adjustment, the noise generated by the tilt of the speaker body is eliminated, ensuring that the speaker can work stably in complex and uneven environments, greatly expanding the use scenarios of the speaker, whether it is uneven indoor ground or rugged outdoor venues, it can ensure the normal operation of the speaker.

[0008] Preferably, a base plate is placed under the audio body, the upper surface of the base plate is fixedly connected to a stabilizing frame, the upper end of the stabilizing frame is fixedly connected to a support rod, the upper end of the support rod is fixedly connected to a carrier, the upper surface of the carrier is fixedly connected to a stabilizing bar, a telescopic rod is rotatably mounted on the stabilizing bar, the driving end of the telescopic rod is rotatably connected to the connecting frame, the end of the pull rope away from the screw is fixedly connected to the surface of the connecting frame, the surface of the support frame is fixedly connected to a control box, the output end of the control box is electrically connected to the telescopic rod, the upper surface of the carrier is fixedly connected to a handle, the lower surface of the base plate is fixedly connected to a support frame, and the lower surface of the base plate is fixedly connected to a pad.

[0009] Preferably, the output end of the processing module is electrically connected to the input end of the transmitting module, the output end of the receiving module is electrically connected to the input end of the processing module, the output end of the tilt sensor is electrically connected to the processing module, the output end of the vibration sensor is electrically connected to the processing module, the output end of the control box is electrically connected to the receiving module, and the input end of the control box is electrically connected to the transmitting module. Multimodal sensor fusion technology is used to achieve real-time intelligent monitoring of the working status of the audio. Once an abnormal signal is detected, the system can quickly complete signal transmission, analysis and processing, and command execution, and can automatically adjust the audio status without manual intervention, thereby reducing manual maintenance costs and improving ease of use and reliability.

[0010] Preferably, an adjustment knob is installed on the side of the audio body away from the speaker, an audio connector is installed on the side of the audio body close to the adjustment knob, a power supply interface is installed on the side of the audio body close to the adjustment knob, and a power switch is installed on the side of the audio body close to the adjustment knob, which facilitates the stable use of the audio body.

[0011] Preferably, a guide hole is opened on the upper surface of the carrier, and the pull rope passes through the guide hole. The upper surface of the carrier is fixedly connected to a guide frame, and the pull rope passes through the guide frame, which is convenient for limiting the pull rope and ensuring that the speaker body is stably pulled up by the pull rope.

[0012] Preferably, the inner wall of the guide hole is rotatably connected to a guide roller, and the pull rope is placed on the guide roller to reduce wear of the pull rope.

[0013] Preferably, a stabilizing mechanism is provided on the upper surface of the bottom plate, and the stabilizing mechanism includes a rubber seat, the lower end of the speaker body is inserted into the rubber seat, the inner wall of the rubber seat is fixedly connected with a first magnet, and the lower surface of the speaker body is installed with a second magnet, and the second magnet is magnetically attracted to the first magnet. Through the adsorption of the rubber seat and the magnet, the noise generated by the speaker body is reduced from a physical level before use.

[0014] Preferably, a storage mechanism is provided on the surface of the support rod, and the storage mechanism is close to the sliding sleeve, and the sliding sleeve is slidably connected to the surface of the support rod, the lower surface of the sliding sleeve is fixedly connected to a bracket, and the lower end of the bracket is fixedly connected to a positioning frame, and the inner wall of the sliding sleeve is threadedly connected to a fastening bolt, and the power supply line and audio line can be effectively stored through the positioning frame.

[0015] Preferably, the inner wall of the positioning frame is rotatably connected to a first rubber roller, and the inner wall of the stabilizing frame is rotatably connected to a second rubber roller. The power supply line and the audio line are effectively managed by the positioning frame, the sliding sleeve and the rubber roller, which not only reduces the noise generated by the cable shaking, but also the rotatable rubber roller does not affect the user's cable pulling operation while clamping the cable, taking into account both noise reduction effect and flexibility of use, making the surrounding environment of the audio more tidy and orderly.

[0016] Preferably, the method comprises the following steps:

[0017] S1. Before use, place the speaker body into the rubber seat and secure it with the first and second magnets. Then lift the handle and move it to the use area.

[0018] S2. Pass the power cable and audio cable through the positioning bracket and connect them to the corresponding interfaces. Pull the sliding sleeve so that the rubber roller clamps the cables to reduce noise. Finally, turn on the power switch to start the speaker.

[0019] S3. During operation, the tilt sensor and vibration sensor monitor the sound status in real time. Once the tilt exceeds the preset value or abnormal vibration occurs, the signal is immediately transmitted to the processing module;

[0020] S4, the processing module processes the signal and transmits it wirelessly via the transmitting module. After the control box receives it and determines that it is abnormal, it sends an adjustment instruction to the telescopic rod;

[0021] S5. Pull the rope on the telescopic rod to adjust the speaker position. The counterweight ensures it is vertical. Continuously monitor and adjust to stability to reduce shaking noise.

[0022] In summary, the technical effects and advantages of the present invention are as follows:

[0023] 1. In the present invention, when the working area is in a tilted state, the tilt sensor and vibration sensor are combined for real-time monitoring, and abnormal tilt and vibration conditions are accurately identified and adjustment mechanisms such as telescopic rods are activated. From the perspective of mechanical adjustment, the noise generated by the tilt of the speaker body is eliminated, ensuring that the speaker can work stably in complex and uneven environments, greatly expanding the use scenarios of the speaker. Whether it is an uneven indoor ground or a rugged outdoor venue, it can ensure the normal operation of the speaker.

[0024] 2. In the present invention, multimodal sensor fusion technology is used to realize real-time intelligent monitoring of the working status of the audio. Once an abnormal signal is detected, the system can quickly complete signal transmission, analysis and processing, and command execution, and automatically adjust the audio status without human intervention, reducing manual maintenance costs and improving ease of use and reliability.

[0025] 3. In the present invention, the noise generated by the speaker body is reduced physically before use through the adsorption of the rubber seat and the magnet. At the same time, the power supply line and the audio line are effectively managed by the positioning frame, the sliding sleeve and the rubber roller, which not only reduces the noise generated by the cable shaking, but also the rotatable rubber roller does not affect the user's cable pulling operation while clamping the cable, taking into account both the noise reduction effect and the flexibility of use, making the surrounding environment of the speaker more tidy and orderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0027] Figure 2 Schematic diagram of the structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0031] Figure 6 Schematic diagram of the structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0032] Figure 7 Schematic diagram of the structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0033] Figure 8 Schematic diagram of the structure of the multimodal sensor fusion audio noise reduction device of the present invention;

[0034] Figure 9 Schematic diagram of the audio noise reduction method based on multimodal sensor fusion of the present invention.

[0035] Figure: 1. Speaker body; 2. Speaker; 3. Noise reduction mechanism; 31. Bottom plate; 32. Stabilizing frame; 33. Support rod; 34. Carrier; 35. Control box; 36. Handle; 37. Guide hole; 38. Guide roller; 39. Pull rope; 310. Guide frame; 311. Connecting frame; 312. Telescopic rod; 313. Stabilizing rod; 314. Screw; 315. Threaded sleeve; 316. Inclination sensor; 317. Support frame; 318. Mounting base; 319. Vibration sensor ;320, counterweight; 321, pad; 322, circuit board; 323, processing module; 324, transmitting module; 325, receiving module; 4, stabilizing mechanism; 41, rubber seat; 42, first magnet; 43, second magnet; 5, power switch; 6, storage mechanism; 61, positioning frame; 62, first rubber roller; 63, second rubber roller; 64, bracket; 65, sleeve; 66, fastening bolt; 7, power supply interface; 8, adjustment knob; 9, audio connector. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] refer to Figures 1-9The multimodal sensor fusion audio noise reduction method and device shown in the figure include an audio body 1, a speaker 2 is installed on the surface of the audio body 1, a noise reduction mechanism 3 is provided on the surface of the audio body 1, the noise reduction mechanism 3 includes a tilt sensor 316, the tilt sensor 316 is installed on the upper surface of the audio body 1, two symmetrically arranged mounting seats 318 are fixedly connected on both sides of the audio body 1, a vibration sensor 319 is fixedly connected to the mounting seat 318, a threaded sleeve 315 is rotatably connected to the upper surface of the audio body 1, a screw 314 is threadedly connected to the threaded sleeve 315, a pull rope 39 is fixedly connected to the upper end of the screw 314, a circuit board 322 is fixedly connected to the interior of the audio body 1, and the circuit board 322 A processing module 323 is installed on the lower surface of the circuit board 322, a transmitting module 324 is installed on the lower surface of the circuit board 322, a receiving module 325 is installed on the lower surface of the circuit board 322, and a counterweight 320 is installed on the lower surface of the speaker body 1. When the working area is in a tilted state, combined with the inclination sensor 316 and the vibration sensor 319 for real-time monitoring, the abnormal tilt and vibration conditions are accurately identified and the adjustment mechanism such as the telescopic rod 312 is activated, thereby eliminating the noise generated by the tilt of the speaker body 1 from the perspective of mechanical adjustment, ensuring that the speaker can work stably in complex and uneven environments, greatly expanding the use scenarios of the speaker, and ensuring the normal operation of the speaker whether it is on uneven indoor ground or rugged outdoor ground.

[0038] Among them, a base plate 31 is placed under the audio body 1, and a stabilizing frame 32 is fixedly connected to the upper surface of the base plate 31, and a supporting rod 33 is fixedly connected to the upper end of the stabilizing frame 32, and a carrier 34 is fixedly connected to the upper surface of the carrier 34. A stabilizing rod 313 is fixedly connected to the upper surface of the carrier 34, and a telescopic rod 312 is rotatably installed on the stabilizing rod 313. The driving end of the telescopic rod 312 is rotatably connected to the connecting frame 311, and the end of the pull rope 39 away from the screw 314 is fixedly connected to the surface of the connecting frame 311, and a control box 35 is fixedly connected to the surface of the support frame, and the output end of the control box 35 is electrically connected to the telescopic rod 312, and a handle 36 is fixedly connected to the upper surface of the carrier 34, and a support frame 317 is fixedly connected to the lower surface of the base plate 31, and a pad 321 is fixedly connected to the lower surface of the base plate 31.

[0039] Among them, the output end of the processing module 323 is electrically connected to the input end of the transmitting module 324, the output end of the receiving module 325 is electrically connected to the input end of the processing module 323, the output end of the tilt sensor 316 is electrically connected to the processing module 323, the output end of the vibration sensor 319 is electrically connected to the processing module 323, the output end of the control box 35 is electrically connected to the receiving module 325, and the input end of the control box 35 is electrically connected to the transmitting module 324. By utilizing multimodal sensor fusion technology, real-time intelligent monitoring of the working status of the audio is realized. Once an abnormal signal is detected, the system can quickly complete signal transmission, analysis and processing, and command execution, and can automatically adjust the audio status without manual intervention, thereby reducing manual maintenance costs and improving ease of use and reliability.

[0040] Among them, an adjustment knob 8 is installed on the side of the audio body 1 away from the speaker 2, an audio connector 9 is installed on the side of the audio body 1 close to the adjustment knob 8, a power supply interface 7 is installed on the side of the audio body 1 close to the adjustment knob 8, and a power switch 5 is installed on the side of the audio body 1 close to the adjustment knob 8, which facilitates the stable use of the audio body 1.

[0041] Among them, a guide hole 37 is opened on the upper surface of the carrier 34, and a pull rope 39 passes through the guide hole 37. The upper surface of the carrier 34 is fixedly connected to a guide frame 310, and the pull rope 39 passes through the guide frame 310, which is convenient for limiting the pull rope 39 and ensuring that the audio body 1 is stably pulled up by the pull rope 39.

[0042] The inner wall of the guide hole 37 is rotatably connected to a guide roller 38 , and the pull rope 39 is placed on the guide roller 38 to reduce wear of the pull rope 39 .

[0043] Among them, a stabilizing mechanism 4 is provided on the upper surface of the bottom plate 31, and the stabilizing mechanism 4 includes a rubber seat 41. The lower end of the speaker body 1 is inserted into the rubber seat 41, and the inner wall of the rubber seat 41 is fixedly connected with a first magnet 42. A second magnet 43 is installed on the lower surface of the speaker body 1. The second magnet 43 is magnetically attracted to the first magnet 42. The noise generated by the speaker body 1 is reduced from a physical level before use through the adsorption of the rubber seat 41 and the magnet.

[0044] Among them, a storage mechanism 6 is provided on the surface of the support rod 33, and the storage mechanism 6 is close to the sliding sleeve 65. The sliding sleeve 65 is slidably connected to the surface of the support rod 33. The lower surface of the sliding sleeve 65 is fixedly connected with a bracket 64, and the lower end of the bracket 64 is fixedly connected with a positioning frame 61. The inner wall of the sliding sleeve 65 is threadedly connected with a fastening bolt 66. Through the positioning frame 61, the power supply line and the audio line can be effectively stored.

[0045] Among them, the inner wall of the positioning frame 61 is rotatably connected to the first rubber roller 62, and the inner wall of the stabilizing frame 32 is rotatably connected to the second rubber roller 63. The power supply line and the audio line are effectively managed through the positioning frame 61, the sliding sleeve 65 and the rubber rollers, which not only reduces the noise generated by the cable shaking, but also the rotatable rubber roller does not affect the user's cable pulling operation while clamping the cable, taking into account both noise reduction effect and flexibility of use, making the surrounding environment of the audio more tidy and orderly.

[0046] The steps include:

[0047] S1. Before use, place the speaker body 1 into the rubber seat 41 and fix it by the first magnet 42 and the second magnet. Then lift the handle 36 and move it to the use area.

[0048] S2. Pass the power supply line and audio line through the positioning frame 61 and connect them to the corresponding interfaces. Pull the sliding sleeve 65 so that the rubber roller clamps the cables to reduce noise. Finally, turn on the power switch 5 to start the audio.

[0049] S3. During operation, the tilt sensor 316 and the vibration sensor 319 monitor the sound state in real time. Once the tilt exceeds the preset value or abnormal vibration occurs, the signal is immediately transmitted to the processing module 323;

[0050] S4, the processing module 323 processes the signal and transmits it wirelessly via the transmitting module 324. After the control box 35 receives the signal and determines that it is abnormal, it sends an adjustment instruction to the telescopic rod 312;

[0051] S5. The telescopic rod 312 pulls the rope 39 to adjust the position of the speaker. The counterweight 320 ensures that it is vertical. It is continuously monitored and adjusted to be stable to reduce shaking noise.

[0052] The working principle of the present invention is as follows: before using the audio body 1, the audio body 1 can be placed in the rubber seat 41, and the second magnet 43 is attracted to the first magnet 42 to ensure the stable use of the audio body 1. Then, the handle 36 is lifted to move the audio body 1 to the use area, and the power cord and the audio cord are then passed through the positioning frame 61 and connected to the power supply interface 7 and the audio plug. Then, the sliding sleeve 65 is pulled upward, and the sliding sleeve 65 drives the positioning frame 61 and the first rubber roller 62 to move upward through the bracket 64. The first rubber roller 62 cooperates with the second rubber roller 63 to stably clamp the power cord and the audio cord to prevent the power cord and the audio cord from shaking, thereby effectively reducing the noise generated thereby. Since both the first rubber roller 62 and the rubber roller can rotate, the user can still pull the power cord or the audio cord, and then turn on the power switch 5 to start using the audio body 1.

[0053] When the working area is in a tilted state, the tilt sensor 316 monitors the tilt angle change of the speaker body 1 in real time. At the same time, the vibration sensor 319 is responsible for sensing the vibration caused by the working of the speaker or the external environment. Once the tilt angle of the speaker exceeds the preset value, or the vibration sensor 319 detects an abnormal vibration signal, the collected analog signal will be transmitted to the processing module 323 on the circuit board 322. After receiving the signals from the tilt sensor 316 and the vibration sensor 319, the processing module 323 analyzes, calculates and processes them. The processing module 323 transmits the processed digital signal to the transmitting module 324, and the transmitting module 324 sends the signal wirelessly.

[0054] After receiving the signal from the transmitting module 324, the control box 35 analyzes and judges according to the preset program. If it detects that the speaker is tilted or vibrating abnormally, the control box 35 sends a command to the telescopic rod 312, and the driving end of the telescopic rod 312 starts to move, pulling the pull rope 39 through the connecting frame 311. Since the pull rope 39 is connected to the screw 314, the speaker body 1 is pulled out of the rubber seat 41. The counterweight block 320 ensures that the speaker body 1 is always in a vertical state, and checks the state of the speaker body 1 through the inclination sensor 316 and the vibration sensor 319. At the same time, the state of the speaker body 1 is continuously adjusted through the telescopic rod 312 and the pull rope 39. When the speaker body 1 remains stable, the noise generated by the shaking of the speaker body 1 can be effectively reduced. At this time, the movement of the telescopic rod 312 can be stopped, and the speaker body 1 can now operate normally and stably.

[0055] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device that performs control such as a computer.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method and apparatus for reducing acoustic noise by multimodal sensor fusion, comprising an acoustic body (1), characterized in that: A speaker (2) is mounted on the surface of the sound body (1), and a noise reduction mechanism (3) is provided on the surface of the sound body (1). The noise reduction mechanism (3) includes an inclination sensor (316), and the inclination sensor (316) is mounted on the upper surface of the sound body (1). Two symmetrically arranged mounting seats (318) are fixedly connected on both sides of the sound body (1), and a vibration sensor (319) is fixedly connected to the mounting seat (318). A threaded sleeve (315) is rotatably connected to the upper surface of the sound body (1). The threaded sleeve (315) is threadedly connected with a screw rod (314), the upper end of the screw rod (314) is fixedly connected with a pull rope (39), the interior of the audio body (1) is fixedly connected with a circuit board (322), the lower surface of the circuit board (322) is installed with a processing module (323), the lower surface of the circuit board (322) is installed with a transmitting module (324), the lower surface of the circuit board (322) is installed with a receiving module (325), and the lower surface of the audio body (1) is installed with a counterweight (320).

2. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 1, characterized in that: A bottom plate (31) is placed below the sound body (1), the upper surface of the bottom plate (31) is fixedly connected to a stabilizing frame (32), the upper end of the stabilizing frame (32) is fixedly connected to a support rod (33), the upper end of the support rod (33) is fixedly connected to a carrier (34), the upper surface of the carrier (34) is fixedly connected to a stabilizing rod (313), a telescopic rod (312) is rotatably mounted on the stabilizing rod (313), and the driving end of the telescopic rod (312) is rotatably connected to a connecting rod (313). The connecting frame (311) is fixedly connected to the surface of the connecting frame (311), the end of the pull rope (39) away from the screw rod (314) is fixedly connected to the surface of the connecting frame (311), the surface of the supporting frame is fixedly connected to a control box (35), the output end of the control box (35) is electrically connected to the telescopic rod (312), the upper surface of the carrier (34) is fixedly connected to a handle (36), the lower surface of the base plate (31) is fixedly connected to a support frame (317), and the lower surface of the base plate (31) is fixedly connected to a cushion block (321).

3. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 2, characterized in that: The output end of the processing module (323) is electrically connected to the input end of the transmitting module (324), the output end of the receiving module (325) is electrically connected to the input end of the processing module (323), the output end of the tilt sensor (316) is electrically connected to the processing module (323), the output end of the vibration sensor (319) is electrically connected to the processing module (323), the output end of the control box (35) is electrically connected to the receiving module (325), and the input end of the control box (35) is electrically connected to the transmitting module (324).

4. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 1, characterized in that: The side of the audio body (1) away from the speaker (2) is equipped with an adjustment knob (8), the side of the audio body (1) close to the adjustment knob (8) is equipped with an audio connector (9), the side of the audio body (1) close to the adjustment knob (8) is equipped with a power supply interface (7), and the side of the audio body (1) close to the adjustment knob (8) is equipped with a power switch (5).

5. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 2, characterized in that: A guide hole (37) is provided on the upper surface of the carrier (34), and the pull rope (39) passes through the guide hole (37). The upper surface of the carrier (34) is fixedly connected to a guide frame (310), and the pull rope (39) passes through the guide frame (310).

6. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 5, characterized in that: The inner wall of the guide hole (37) is rotatably connected to a guide roller (38), and the pull rope (39) is placed on the guide roller (38).

7. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 2, wherein: The upper surface of the bottom plate (31) is provided with a stabilizing mechanism (4), the stabilizing mechanism (4) includes a rubber seat (41), the lower end of the acoustic body (1) is inserted into the rubber seat (41), the inner wall of the rubber seat (41) is fixedly connected with a first magnet (42), and the lower surface of the acoustic body (1) is provided with a second magnet (43), and the second magnet (43) is magnetically attracted to the first magnet (42).

8. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 2, wherein: The surface of the support rod (33) is provided with a receiving mechanism (6), the receiving mechanism (6) is close to the sliding sleeve (65), the sliding sleeve (65) is slidably connected to the surface of the support rod (33), the lower surface of the sliding sleeve (65) is fixedly connected to a bracket (64), the lower end of the bracket (64) is fixedly connected to a positioning frame (61), and the inner wall of the sliding sleeve (65) is threadedly connected to a fastening bolt (66).

9. The method and apparatus for acoustic noise reduction using multimodal sensor fusion according to claim 8, characterized in that: The inner wall of the positioning frame (61) is rotatably connected to a first rubber roller (62), and the inner wall of the stabilizing frame (32) is rotatably connected to a second rubber roller (63).

10. An acoustic noise reduction method using multimodal sensor fusion, characterized by: The following steps are involved: S1. Before use, place the speaker body (1) into the rubber seat (41), fix it by adsorption with the first magnet (42) and the second magnet, and then lift the handle (36) to move it to the use area; S2. Pass the power supply line and the audio line through the positioning frame (61) and connect them to the corresponding interfaces. Pull the sliding sleeve (65) so that the rubber roller clamps the cables to reduce noise. Finally, turn on the power switch (5) to start the audio system. S3, when working, the tilt sensor (316) and the vibration sensor (319) monitor the sound state in real time, and immediately transmit the signal to the processing module (323) once the tilt exceeds the preset value or abnormal vibration occurs; S4, the processing module (323) processes the signal and transmits it wirelessly via the transmitting module (324). After the control box (35) receives the signal and determines that it is abnormal, it sends an adjustment instruction to the telescopic rod (312); S5, the telescopic rod (312) pulls the rope (39) to adjust the position of the speaker, and the counterweight (320) ensures that it is vertical, continuously monitors and adjusts to stability to reduce shaking noise.

Images