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CN-121985280-A - Self-adaptive bone conduction hearing aid device, system and method based on intelligent environment recognition

CN121985280ACN 121985280 ACN121985280 ACN 121985280ACN-121985280-A

Abstract

The utility model provides a self-adaptation bone conduction hearing aid device, system and method based on environment intelligent identification, hearing aid device includes connector roof beam, right side sound generating mechanism and left side sound generating mechanism, and right side sound generating mechanism and left side sound generating mechanism are installed respectively in connector roof beam both sides, are provided with the hair band broach on the connector roof beam. The hair band structure is arranged on the connector beam, so that the hair band structure can be fixed on the head of a user in an auxiliary manner, and the hair band structure is stable and firm and does not lose beauty. According to the invention, the bone conduction vibrator and the pickup microphone are arranged in a split manner, and the double-microphone structure is adopted, so that the problem of mechanical coupling howling can be solved, and intelligent scene recognition can be performed more effectively. The architecture of the present invention achieves a total delay of <8ms, which is critical for user perception of realism and prevention of "echo effects". The invention realizes the full-link intelligent optimization from environment perception to sound output through the deep fusion of the architecture and the algorithm, and breaks through the psychological and physiological use barriers of users through hardware design.

Inventors

  • FANG MINGCONG

Assignees

  • 深圳市曜宸智科科技有限公司

Dates

Publication Date
20260505
Application Date
20260210

Claims (10)

  1. 1. The self-adaptive bone conduction hearing aid device based on intelligent environment recognition is characterized by comprising a connector beam (1), a right sound generating device (2) and a left sound generating device (3), wherein the right sound generating device (2) and the left sound generating device (3) are respectively arranged on two sides of the connector beam (1), and hair band comb teeth (13) are arranged on the connector beam (1).
  2. 2. The self-adaptive bone conduction hearing aid device based on environment intelligent recognition according to claim 1, wherein the connector beam (1) comprises an elastic connecting sheet (11) and a jacket (12), the jacket (12) is sleeved on the outer side of the elastic connecting sheet (11), hair band comb teeth (13) are fixedly arranged on a hair band connecting portion (14), the hair band connecting portion (14) is arranged in parallel with the elastic connecting sheet (11), a strip-shaped groove (121) is formed in the jacket (12), and the hair band comb teeth (13) extend out of the strip-shaped groove (121).
  3. 3. The self-adaptive bone conduction hearing aid device based on environment intelligent recognition according to claim 2, wherein the hair band connecting part (14) adopts a magnetic attraction type or buckle type structure, the hair band connecting part (14) is provided with a recognition contact, and the Bluetooth DSP automatically invokes an acoustic preset parameter set corresponding to the sound conduction hearing aid device from the memory after acquiring the decorative piece identification information through the recognition contact.
  4. 4. The self-adaptive bone conduction hearing aid device based on environment intelligent recognition according to claim 1, wherein the right sound generating device (2) and the left sound generating device (3) respectively comprise a front cover (21), a rear cover (22), a connecting part (23), a control board (25), a microphone (27) and a bone conduction sound generating mechanism, the front cover (21) and the rear cover (22) are buckled together to form a sound generating device shell, one end of the connecting part (23) is installed in the sound generating device shell, the other end of the connecting part is installed with the connector beam (1), the control board (25) and the bone conduction sound generating mechanism are fixedly installed in the sound generating device shell, the bone conduction sound generating mechanism is electrically connected with the control board (25), and the microphone (27) is fixedly installed on the sound generating device shell and electrically connected with the control board (25).
  5. 5. The self-adaptive bone conduction hearing aid device based on intelligent environment recognition according to claim 4, wherein the top of the front cover (21) is fixedly provided with a mounting ring (211), the connecting part (23) is inserted into the mounting ring (211), and the connecting part (23) is provided with more than one limiting part (231).
  6. 6. The self-adaptive bone conduction hearing aid device based on intelligent environment recognition according to claim 4, wherein a volume regulator (251) is installed on the control board (25), a volume regulating knob (252) is arranged on the front cover (2), and the volume regulating knob (252) is connected with the volume regulator (251).
  7. 7. The self-adaptive bone conduction hearing aid device based on intelligent environment recognition according to claim 4, wherein the control board (25) is provided with a charging interface (253), the sound generating device shell is provided with a switch (254), the switch (254) adopts a sliding switch, and a corresponding switching device is arranged at a corresponding position on the control board (25).
  8. 8. The self-adaptive bone conduction hearing aid device based on environment intelligent recognition according to claim 4, wherein the bone conduction sounding mechanism comprises a fitting sleeve (261), a fitting sleeve supporting frame (262), a bone conduction oscillator fixing piece (263), a bone conduction oscillator (264), a resonant cavity (265), a sealing cover (266) and a resonant cavity cover (267), the fitting sleeve supporting frame (262) is fixedly embedded in the rear cover (22), the fitting sleeve (261) is fixedly arranged on the fitting sleeve supporting frame (262), the sealing cover (266) is fixedly arranged at the front end of the fitting sleeve supporting frame (262), the resonant cavity cover (267) is fixedly arranged at the rear end of the fitting sleeve supporting frame (262), the resonant cavity (265) is fixedly arranged inside the fitting sleeve supporting frame (262), the bone conduction oscillator fixing piece (263) is fixedly arranged on the resonant cavity (265), the bone conduction oscillator (264) is arranged in the resonant cavity (265), and the bone conduction oscillator (264) is electrically connected with the control panel (25) through the electrode (268).
  9. 9. An environment intelligent recognition-based adaptive bone conduction hearing aid system arranged in an environment intelligent recognition-based adaptive bone conduction hearing aid device according to any one of claims 1 to 8, wherein the system comprises a hearing aid processing unit and a logic judging module, the hearing aid processing unit and the logic judging module are connected through an I2C bus, two microphones are connected to the hearing aid processing unit, and an encoder, a switch, an indicator light and a bone conduction vibrator are connected to the logic judging module.
  10. 10. An adaptive bone conduction hearing aid method based on intelligent environment recognition, which is realized by the adaptive bone conduction hearing aid device based on intelligent environment recognition according to any one of claims 1 to 8, and is characterized in that the method comprises the following steps: (1) Pre-hearing aid preprocessing of the front stage, comprising: the two microphones convert the environmental sound into an electric signal, and the hearing aid processing unit performs primary amplification; AFC, the hearing aid processing unit eliminates howling through phase cancellation, the front-stage DSP executes hardware self-adaptive filtering to carry out static AFC; the 16-channel WDRC adopts 16-channel high-precision compression to provide gain compensation for specific frequency loss; I2S transmission, namely, the processed sound is used as a digital stream and is transmitted to a logic judgment module; (2) The logic judgment module performs situation processing, including: AI situation noise reduction, after receiving I2S signal, using its DSP to classify the environment, dynamically restrain background noise, bluetooth DSP executing dynamic frequency shift, bluetooth DSP receiving digital audio stream from front DSP processing through I2S bus in real time, using its internal integrated HiFi4 DSP computing power resource, using polyphase filter bank to process time-frequency analysis, calculating the energy distribution, spectrum flatness and signal-to-noise ratio of the current environment, offline algorithm logic layer classifying the current environment as preset situation mode according to the extracted characteristics, then, bluetooth DSP calling gain compensation curve and compression strategy matched with the mode from its local memory, bluetooth DSP sending specific instruction set to front DSP with logic address MA1180 through I2C control bus, the instruction set directly rewriting the register value of front DSP internal 16 channel WDRC controller, including compression threshold value, compression ratio and time constant of each channel; Mixing, namely fusing the mobile phone call or television transmitter audio received by the wireless Bluetooth chip with hearing aid audio sent by a hearing aid processing unit; and the bone conduction oscillator is driven to carry out low-frequency enhancement and peak value limitation aiming at the physical characteristics of the bone conduction oscillator, and a control signal is output to drive the bone conduction oscillator to vibrate and sound.

Description

Self-adaptive bone conduction hearing aid device, system and method based on intelligent environment recognition Technical Field The invention discloses a hearing aid device, in particular to a self-adaptive bone conduction hearing aid device, system and method based on intelligent environment recognition, and belongs to the technical field of personal audio electronic products. Background The hearing aid is electronic auxiliary equipment designed for the hearing impaired people, and has the core effects of improving hearing experience and improving speech communication capacity through accurate sound processing and amplification. The core working principle of the hearing aid is that sound in the environment is collected through a microphone and converted into an electric signal, a digital signal processor carries out noise reduction, filtering and gain adjustment on the electric signal, an amplifier accurately amplifies the processed signal according to the hearing loss degree, a receiver restores the electric signal into an acoustic signal, the acoustic signal is transmitted into an auditory canal, and finally the acoustic signal is transmitted to a brain for analysis through an auditory system. The current hearing aids mainly comprise two forms, namely an air-conduction hearing aid and a bone-conduction hearing aid, wherein the air-conduction hearing aid (most commonly) conducts sound to the inner ear through air, comprises a back ear type hearing aid, an ear canal type hearing aid, a deep ear canal type hearing aid and a box type hearing aid, is suitable for most hearing loss people, and has the advantages of high back ear power, full type hearing loss adaptation, high hiding performance of the ear canal/deep ear canal type hearing aid, suitability for light and medium hearing loss, box type cost performance and simplicity in operation, suitability for the elderly, and bone-conduction hearing aid (most commonly) conducts sound through vibrating skull without being plugged into the ear canal, and is suitable for conductive/mixed hearing loss, ear canal sensitivity or teratogenesis people, and high-frequency speech recognition performance in noisy environments is excellent. The traditional hearing aid is often unreasonable in design structure, (1) acoustic feedback interference is that a bone conduction oscillator and a pickup microphone are located in the same physical shell, mechanical coupling howling is easy to induce when high-gain compensation occurs, (2) wearing comfort and psychological barrier are that an existing device structure is fixed, different head types of pressure cannot be adapted, the appearance is obvious in medical appliance sense, a user has 'bad pubic feeling' and is uncomfortable to wear or easy to drop, and the like, (3) learning cost is high, the situation that the traditional device relies on a smart phone application program to carry out test matching, mode and volume adjustment forms a huge barrier for an old user under a digital gap is high, (4) environment self-adaption capability is weak, traditional devices are incapable of dynamically adjusting compression parameters under noisy environments (such as restaurants and streets), speech clarity is poor, delay and calculation contradiction is that depending on AI can lead to serious audio delay (echo), and local processing is often limited by DSP memory. Disclosure of Invention Aiming at the defect that the design structure of the hearing aid in the prior art is not reasonable, the invention provides a self-adaptive bone conduction hearing aid device, a system and a method based on intelligent environment recognition, which are provided with a hair band structure on a connector beam, so that the hearing aid can be fixed on the head of a user in an assisted manner, and the hearing aid is stable and firm and is not attractive. The technical scheme includes that the self-adaptive bone conduction hearing aid device based on intelligent environment recognition comprises a connector beam, a right-side sound generating device and a left-side sound generating device, wherein the right-side sound generating device and the left-side sound generating device are respectively arranged on two sides of the connector beam, and hair band comb teeth are arranged on the connector beam. The self-adaptive bone conduction hearing aid system based on the intelligent environment recognition comprises a hearing aid processing unit and a logic judging module, wherein the hearing aid processing unit is connected with the logic judging module through an I2C bus, two microphones are connected to the hearing aid processing unit, and an encoder, a switch, an indicator light and a bone conduction vibrator are connected to the logic judging module. An adaptive bone conduction hearing aid method based on intelligent environment recognition, which comprises the following steps: (1) Pre-hearing aid preprocessing of the front stage, comprising: the two microphon