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CN-120547459-B - Acoustic noise reduction method and device for multi-mode sensor fusion

CN120547459BCN 120547459 BCN120547459 BCN 120547459BCN-120547459-B

Abstract

The invention relates to the technical field of acoustic noise reduction, and discloses an acoustic noise reduction method and device with multi-mode sensor fusion, which comprise an acoustic body, wherein a loudspeaker is arranged on the surface of the acoustic body, a noise reduction mechanism is arranged on the surface of the acoustic body, the noise reduction mechanism comprises an inclination sensor, the inclination sensor is mounted on the upper surface of the sound body, and two symmetrically arranged mounting seats are fixedly connected to two sides of the sound body. According to the invention, when the working area is in an inclined state, the inclination sensor and the vibration sensor are combined for real-time monitoring, the abnormal conditions of inclination and vibration are accurately identified, the adjusting mechanisms such as the telescopic rod and the like are started, the noise generated when the sound equipment body is inclined is eliminated from the mechanical adjusting angle, the sound equipment can stably work in a complex and uneven environment, the use scene of the sound equipment is greatly expanded, and the normal operation of the sound equipment can be ensured no matter the sound equipment is on an indoor uneven ground or an outdoor rugged ground.

Inventors

  • LI XITANG

Assignees

  • 广东声力电子科技有限公司

Dates

Publication Date
20260512
Application Date
20250515

Claims (9)

  1. 1. The acoustic noise reduction device with the multi-mode sensor fusion comprises an acoustic body (1), and is characterized in that a loudspeaker (2) is arranged on the surface of the acoustic body (1), a noise reduction mechanism (3) is arranged on the surface of the acoustic body (1), the noise reduction mechanism (3) comprises an inclination sensor (316), the inclination sensor (316) is arranged on the upper surface of the acoustic body (1), two symmetrically arranged mounting seats (318) are fixedly connected to the two sides of the acoustic body (1), a vibration sensor (319) is fixedly connected to the mounting seats (318), a thread bush (315) is rotatably connected to the upper surface of the acoustic body (1), a screw (314) is connected to the thread bush (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 inside of the acoustic body (1), a processing module (323) is arranged on the lower surface of the circuit board (322), a transmitting module (324) is arranged on the lower surface of the circuit board (322), a base plate (320) is arranged on the lower surface of the acoustic body (1), the utility model discloses a high-speed electric motor car, including bottom plate (31), upper surface fixedly connected with steady rest (32) of bottom plate (31), the upper end fixedly connected with bracing piece (33) of steady rest (32), the upper end fixedly connected with carrier (34) of bracing piece (33), the upper surface fixedly connected with stabilizer bar (313) of carrier (34), rotation installs telescopic link (312) on stabilizer bar (313), the drive end rotation of telescopic link (312) is connected with link (311), the one end that screw rod (314) was kept away from to stay cord (39) and the surface fixed connection of link (311), the surface fixed connection of bracing piece (33) has control box (35), the output and telescopic link (312) electric connection of control box (35), the upper surface fixedly connected with handle (36) of carrier (34), the lower surface fixedly connected with carriage (317) of bottom plate (31), the lower surface fixedly connected with cushion (321) of bottom plate (31).
  2. 2. The multi-modal sensor fusion acoustic noise reduction apparatus as set forth in claim 1, wherein the output of the processing module (323) is electrically connected to the input of the transmitting module (324), the output of the receiving module (325) is electrically connected to the input of the processing module (323), the output of the tilt sensor (316) is electrically connected to the processing module (323), the output of the vibration sensor (319) is electrically connected to the processing module (323), the output of the control box (35) is electrically connected to the receiving module (325), and the input of the control box (35) is electrically connected to the transmitting module (324).
  3. 3. The multi-mode sensor fusion acoustic noise reduction device according to claim 1, wherein an adjusting knob (8) is arranged on one side, far away from the loudspeaker (2), of the acoustic body (1), an audio connector (9) is arranged on one side, close to the adjusting knob (8), of the acoustic body (1), a power supply interface (7) is arranged on one side, close to the adjusting knob (8), of the acoustic body (1), and a power switch (5) is arranged on one side, close to the adjusting knob (8), of the acoustic body (1).
  4. 4. The multi-modal sensor fusion acoustic noise reduction apparatus as set forth in claim 1, wherein the upper surface of the carrier (34) is provided with a guide hole (37), the pull rope (39) penetrates through the guide hole (37), the upper surface of the carrier (34) is fixedly connected with a guide frame (310), and the pull rope (39) penetrates through the guide frame (310).
  5. 5. The multi-modal sensor fused acoustic noise reduction apparatus as set forth in claim 4, wherein the inner wall of the guide hole (37) is rotatably connected with a guide roller (38), and the pull rope (39) is mounted on the guide roller (38).
  6. 6. The multi-mode sensor fusion acoustic noise reduction device according to claim 1, wherein a stabilizing mechanism (4) is arranged on the upper surface of the bottom plate (31), the stabilizing mechanism (4) comprises a rubber seat (41), the lower end of the acoustic body (1) is inserted into the rubber seat (41), a first magnet (42) is fixedly connected to the inner wall of the rubber seat (41), a second magnet (43) is mounted on the lower surface of the acoustic body (1), and the second magnet (43) is magnetically adsorbed with the first magnet (42).
  7. 7. The multi-mode sensor fusion acoustic noise reduction device according to claim 1, wherein a containing mechanism (6) is arranged on the surface of the supporting rod (33), the containing mechanism (6) is close to the sliding sleeve (65), the sliding sleeve (65) is slidably connected with the surface of the supporting rod (33), a support (64) is fixedly connected to the lower surface of the sliding sleeve (65), a positioning frame (61) is fixedly connected to the lower end of the support (64), and a fastening bolt (66) is connected to the inner wall of the sliding sleeve (65) in a threaded mode.
  8. 8. The multi-modal sensor fused acoustic noise reduction apparatus as set forth in claim 7, wherein a first rubber roller (62) is rotatably coupled to an inner wall of the positioning frame (61), and a second rubber roller (63) is rotatably coupled to an inner wall of the stabilizing frame (32).
  9. 9. The acoustic noise reduction method for the multi-modal sensor fusion is applied to the audio noise reduction device for the multi-modal sensor fusion as claimed in claim 8, and is characterized by comprising the following steps: S1, before use, placing the sound body (1) into a rubber seat (41), adsorbing and fixing by means of a first magnet (42) and a second magnet (43), and then lifting a handle (36) to move to a use area; s2, enabling a power supply line and an audio line to pass through the locating frame (61) and be connected with corresponding interfaces, pulling the sliding sleeve (65) to enable the first rubber roller (62) and the second rubber roller (63) to clamp a cable for noise reduction, and finally turning on the power switch (5) to start sound; s3, during operation, the inclination sensor (316) and the vibration sensor (319) monitor the sound state in real time, and once inclination exceeds a preset value or abnormal vibration occurs, signals are immediately transmitted to the processing module (323); S4, the processing module (323) processes the signals and then transmits the signals through the transmitting module (324) in a wireless mode, and the control box (35) sends an adjusting instruction to the telescopic rod (312) after receiving the signals transmitted by the transmitting module (324); s5, the telescopic rod (312) pulls the pull rope (39) to adjust the sound position, the balancing weight (320) is perpendicular to the ground, continuous monitoring and adjustment are carried out to be stable, and shaking noise is reduced.

Description

Acoustic noise reduction method and device for multi-mode sensor fusion Technical Field The invention relates to the technical field of acoustic noise reduction, in particular to an acoustic noise reduction method and device for multi-mode sensor fusion. Background Sound is a device for converting an electric signal into a sound signal and playing the sound signal. The audio system mainly comprises a sound source, an amplifier, a loudspeaker and the like, is widely applied to home theatres, stage performances, conference places and the like, can bring high-quality hearing enjoyment for people, creates various required acoustic atmospheres, and is an indispensable audio playing device in modern life. At present, most of sound equipment is often placed on a table top for use, when the table top is inclined, a sound generating unit in the sound equipment such as a loudspeaker and the like is easy to deviate from the normal position, so that the gap between a voice coil and a magnet is uneven, driving force generated when current passes through the voice coil is unbalanced, a vibrating diaphragm is irregularly vibrated, noise is generated, and therefore, the acoustic noise reduction method and the acoustic noise reduction device for fusion of the multi-mode sensor are provided. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a multi-mode sensor fused sound noise reduction method and device, which solve the problems that most of the prior sound is often placed on a table top for use, when the table top is inclined, sounding units such as a loudspeaker and the like in the sound are easy to deviate from the normal position, so that the gap between a voice coil and a magnet is uneven, driving force generated when current passes through the voice coil is uneven, and vibration of a vibrating diaphragm is irregular, so that noise is generated. The acoustic noise reduction device with the multi-mode sensor fusion comprises an acoustic body, wherein a loudspeaker is arranged on the surface of the acoustic body, a noise reduction mechanism is arranged on the surface of the acoustic body, the noise reduction mechanism comprises an inclination sensor, the inclination sensor is arranged on the upper surface of the acoustic body, two symmetrically arranged mounting seats are fixedly connected to two sides of the acoustic body, vibration sensors are fixedly connected to the mounting seats, a threaded sleeve is rotatably connected to the upper surface of the acoustic body, a screw is connected to the threaded sleeve in a threaded manner, a pull rope is fixedly connected to the upper end of the screw, a circuit board is fixedly connected to the inside of the acoustic body, a processing module is arranged on the lower surface of the circuit board, a transmitting module is arranged on the lower surface of the circuit board, a receiving module is arranged on the lower surface of the circuit board, and a balancing weight is arranged on the lower surface of the acoustic body. Preferably, the bottom plate has been placed to sound body's below, the upper surface fixedly connected with stabilizing rack of bottom plate, the upper end fixedly connected with bracing piece of stabilizing rack, the upper end fixedly connected with carriage of bracing piece, the upper surface fixedly connected with stabilizer bar of carriage, rotate on the stabilizer bar and install the telescopic link, the drive end of telescopic link rotates and is connected with the link, the one end that the screw rod was kept away from to the stay cord and the surface fixedly connected with control box of link, the output and the telescopic link electric connection of control box, the upper surface fixedly connected with handle of carriage, the lower surface fixedly connected with carriage of bottom plate, the lower surface fixedly connected with cushion of bottom plate. Preferably, the output end of the processing module is electrically connected with the input end of the transmitting module, the output end of the receiving module is electrically connected with the input end of the processing module, the output end of the inclination sensor is electrically connected with the processing module, the output end of the vibration sensor is electrically connected with the processing module, the output end of the control box is electrically connected with the receiving module, the input end of the control box is electrically connected with the transmitting module, the real-time intelligent monitoring of the sound working state is realized by utilizing the multi-mode sensor fusion technology, once abnormal signals are detected, the system can quickly complete signal transmission, analysis processing and instruction execution, the sound state can be automatically adjusted without manual intervention, the manual maintenance cost is reduced, and the use convenience and reliability are improved. Preferably, adjust knob is installed to one sid