An interactive foreign language speech training aid for hearing impaired children

Abstract

The application provides an interactive foreign language pronunciation training auxiliary system for children with hearing impairment, and belongs to the field of pronunciation training learning; a plurality of core plastic optical fibers are embedded into a neck collar to realize close adhesion with a throat, an optical filter is used to form a multi-path Michelson interference structure to accurately perceive throat vibration spectrum, parameters such as the frequency, intensity and duration of pronunciation are converted into visual light signals to facilitate display in the plastic optical fiber, through wavelength coding technology, pronunciation fundamental frequency bands are mapped into visible light spectrum, so that pronunciation of different fundamental frequency bands corresponds to visible light of different colors, light intensity gradient is used to represent pronunciation intensity, a "tactile-visual" dual-channel reinforcement learning is formed, tactile sense provides real-time physiological feedback, photoelectric signals construct an abstract pronunciation model, and the two cooperate to improve pronunciation feature recognition, convert the foreign language pronunciation process into a game scene, stimulate the training interest of children through color change, and solve the problems of low participation and boring training in the traditional method.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of speech training learning, in particular to an interactive foreign language speech training auxiliary system for hearing-impaired children. BACKGROUND

[0002] The language development of hearing-impaired children faces congenital challenges, and the impairment of their auditory pathways leads to speech perception and pronunciation training as a core problem in the field of special education. With the acceleration of globalization, foreign language ability has become one of the basic qualities of modern citizens, and the speech training of hearing-impaired children not only concerns the acquisition of language skills, but also is an important foundation for their integration into a multicultural society and access to international educational resources. Studies have shown that in the process of foreign language acquisition, the communication barriers caused by insufficient speech clarity of hearing-impaired children make their foreign language learning effect much lower than that of normal-hearing children, which seriously restricts their educational equity and future development space. Under this background, exploring speech training methods that meet the perceptual characteristics of hearing-impaired children has important social significance and educational value.

[0003] Traditional speech training mainly relies on visual imitation and tactile vibration perception, but has significant limitations. Visual lip reading is difficult to capture hidden pronunciation features such as vocal cord vibration and airflow intensity. The larynx is the core vibration source of human voice, and its vibration mode directly reflects the state of vocal cord movement. By obtaining laryngeal vibration information through the tactile channel, hearing-impaired children can bypass the impaired auditory system and directly establish a "speech action-tactile feedback" neural circuit. However, conventional tactile devices cannot be closely attached to the throat for a long time, and cannot accurately map the spectral characteristics of speech. For example, the difference in vocal cord vibration between the English voiceless consonant / p / and the voiced consonant / b / is only 30-50 Hz, but existing tactile sensors generally have a frequency recognition error of ± 15 Hz, leading to similar phonemes (such as / i / and / e / ) converging in tactile feedback, making it difficult for children to establish accurate speech-tactile mapping. At the same time, the instantaneous nature and invisibility of tactile signals make it difficult for children to form sustained spatialized speech representations, affecting long-term memory effectiveness. SUMMARY

[0004] In order to overcome the shortcomings of traditional throat touch type sound vibration perception training methods, the present application proposes an interactive foreign language speech training auxiliary system for hearing-impaired children.

[0005] The technical solution adopted by the present application is: an interactive foreign language speech training auxiliary system for hearing-impaired children, comprising a neck collar and a demodulator, the neck collar is built-in with a perception module, and an optical fiber interface is arranged on the neck collar, the neck collar is connected with the demodulator through an optical fiber;

[0006] The demodulator is equipped with an SLED ultra-wideband light source, an LED light source, a first optical fiber coupler, a first optical filter, a second optical filter, a variable optical attenuator, a microprocessor, a rotating glass color wheel, and multiple optical fiber interfaces. The SLED ultra-wideband light source and the LED light source are respectively connected to the input end a and input end b of the first optical fiber coupler; the output end c of the first optical fiber coupler is connected to the input end e of the first optical filter; the output end d of the first optical fiber coupler is connected to the input end a of the second optical filter; the output end b of the second optical filter is connected to the input end a of the variable optical attenuator; the control end b of the variable optical attenuator is connected to the output end e of the microprocessor; the output end c of the variable optical attenuator is connected to the input end a of the rotating glass color wheel; the control end b of the rotating glass color wheel is connected to the output end f of the microprocessor; and the output end c of the rotating glass color wheel is connected to a fifth optical fiber interface, which is used to connect to the main optical fiber interface on the neck collar.

[0007] The detection light from the multi-channel output port of the first optical filter is constructed into a Michelson interference optical path. Each Michelson interference optical path is connected to the input port of the microprocessor through a photoelectric detector and a data acquisition card. Each Michelson interference optical path is also connected to an optical fiber interface. The Michelson interference optical path is connected to a sensing module in the neck collar through the optical fiber interface. The sensing module detects the vibration signal and reflects it back to the Michelson interference optical path. After passing through the photoelectric detector and the data acquisition card, the microprocessor converts the corresponding vibration intensity information into gain control for the variable optical attenuator and converts the corresponding vibration frequency information into color block control for the rotating glass color wheel.

[0008] Furthermore, the sensing module includes multiple sensor optical fibers, and each sensor optical fiber is connected to a Faraday rotator.

[0009] Furthermore, the neckband is also provided with a display module, which is used to present different vibration information as different brightness and colors.

[0010] Furthermore, the first optical filter includes four output ports a, b, c, and d. The detection light output from the four output ports is constructed as a four-way Michelson interference optical path, and the perception module is provided with four sensing optical fibers and four Faraday rotators corresponding to the four-way Michelson interference optical path. The neck collar is provided with a sixth optical fiber interface and a seventh optical fiber interface.

[0011] Further, the first Michelson interference optical path comprises a second optical fiber coupler, a first photoelectric detector, a first data acquisition card, a first optical fiber interface, the output end a of the first optical filter is connected to the port b of the second optical fiber coupler, so that the light source passes in one direction; the port a of the second optical fiber coupler is connected to the input end a of the first photoelectric detector; the output end b of the first photoelectric detector is connected to the input end a of the first data acquisition card, and the signal is collected; the output end b of the first data acquisition card is connected to the input end c of the microprocessor, and the data is analyzed and processed; the port c of the second optical fiber coupler is connected to the first optical fiber interface, and the first optical fiber interface is connected to the input end a of the seventh optical fiber interface; the port d of the second optical fiber coupler is connected to the input end a of the first optical switch, and the output end c of the first optical switch is connected to the input end a of the first reference optical fiber; the output end b of the first reference optical fiber is connected to the first Faraday optical rotator.

[0012] Further, the second Michelson interference optical path comprises a third optical fiber coupler, a second photoelectric detector, a second data acquisition card, a second optical fiber interface, the output end b of the first optical filter is connected to the port a of the third optical fiber coupler, so that the light source passes in one direction; the port b of the third optical fiber coupler is connected to the input end a of the second photoelectric detector; the output end b of the second photoelectric detector is connected to the input end a of the second data acquisition card, and the signal is collected; the output end b of the second data acquisition card is connected to the input end a of the microprocessor, and the data is analyzed and processed; the d port of the third optical fiber coupler is connected to the second optical fiber interface, and the second optical fiber interface is connected to the input end b of the seventh optical fiber interface; the port c of the third optical fiber coupler is connected to the input end b of the first optical switch.

[0013] Further, the third Michelson interference optical path comprises a fourth optical fiber coupler, a third photoelectric detector, a third data acquisition card, a third optical fiber interface, the output end c of the first optical filter is connected to the port b of the fourth optical fiber coupler, so that the light source passes in one direction; the port a of the fourth optical fiber coupler is connected to the input end a of the third photoelectric detector; the output end b of the third photoelectric detector is connected to the input end a of the third data acquisition card, and the signal is collected; the output end b of the third data acquisition card is connected to the input end d of the microprocessor, and the data is analyzed and processed; the port c of the fourth optical fiber coupler is connected to the third optical fiber interface, and the third optical fiber interface is connected to the input end c of the seventh optical fiber interface; the port d of the fourth optical fiber coupler is connected to the input end a of the second optical switch; the output end c of the second optical switch is connected to the input end a of the second reference optical fiber; the output end b of the second reference optical fiber is connected to the second Faraday optical rotator.

[0014] Further, the fourth Michelson interference optical path comprises a fifth fiber coupler, a fourth photodetector, a fourth data acquisition card, a fourth fiber interface, the output end d of the first optical filter is connected to the port a of the fifth fiber coupler, so that the light source passes through in one direction; the port b of the fifth fiber coupler is connected to the input end a of the fourth photodetector; the output end b of the fourth photodetector is connected to the input end a of the fourth data acquisition card for data acquisition of the signal; the output end b of the fourth data acquisition card is connected to the input end b of the microprocessor for data analysis and processing; the port d of the fifth fiber coupler is connected to the fourth fiber interface; the fourth fiber interface is connected to the input end d of the seventh fiber interface; and the port c of the fifth fiber coupler is connected to the second optical switch input end b.

[0015] Further, the input end a of the seventh fiber interface is connected to the output end e of the seventh fiber interface, the output end e of the seventh fiber interface is connected to the third Faraday rotator through the sensing fiber a in the sensing module, the input end b of the seventh fiber interface is connected to the output end f of the seventh fiber interface, the output end f of the seventh fiber interface is connected to the fourth Faraday rotator through the sensing fiber b in the sensing module, the input end c of the seventh fiber interface is connected to the output end g of the seventh fiber interface, the output end g of the seventh fiber interface is connected to the fifth Faraday rotator through the sensing fiber c in the sensing module, the input end d of the seventh fiber interface is connected to the output end h of the seventh fiber interface, the output end h of the seventh fiber interface is connected to the sixth Faraday rotator through the sensing fiber d in the sensing module, the fifth fiber interface is connected to the input end a of the sixth fiber interface, and the output end b of the sixth fiber interface is connected to the optical fiber in the display module.

[0016] Further, the two ends of the neck cover are also respectively provided with a first magic tape and a second magic tape, and the first magic tape is pasted to the second magic tape during use.

[0017] The present application has the following beneficial effects relative to the prior art:

[0018] (1) In order to overcome the shortcomings of the traditional touch throat type sound vibration sensing training method, the multi-core plastic optical fiber is embedded into the neck cover to realize close fitting with the throat, and the light filter is used to form a multi-channel Michelson interference structure to accurately sense the throat vibration spectrum.

[0019] (2) The frequency, intensity, duration and other parameters of the voice are converted into visual light signals for display in the plastic optical fiber, the voice fundamental band is mapped to the visible spectrum through wavelength coding technology, different voice fundamental bands correspond to different colors of visible light, and the voice intensity is represented by the light intensity gradient;

[0020] (3) This multi-modal feedback mechanism can form a "haptic-visual" dual-channel reinforcement learning, haptic provides real-time physiological feedback, and photoelectric signal constructs an abstract speech model. The two work together to improve speech feature recognition;

[0021] (4) The interactive auxiliary system can convert the pronunciation process into a game scene, and through dynamic feedback such as color change and light and shade, it can stimulate the training interest of children, and solve the problem of low participation and boring training in traditional methods. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below in conjunction with the accompanying drawings:

[0023] Figure 1 A light path structure schematic diagram of a demodulator in an interactive foreign language pronunciation training auxiliary system for hearing-impaired children is provided for the embodiments of the application;

[0024] Figure 2 A layout scheme diagram of a neck cover in an interactive foreign language pronunciation training auxiliary system for hearing-impaired children is provided for the embodiments of the application;

[0025] In the figure: 1 is an SLED broadband light source, 2 is an LED light source, 3 is a first optical fiber coupler, 4 is a first optical filter, 5 is a second optical fiber coupler, 6 is a first photodetector, 7 is a first data acquisition card, 8 is a first optical fiber interface, 9 is a third optical fiber coupler, 10 is a second photodetector, 11 is a second data acquisition card, 12 is a second optical fiber interface, 13 is a first optical switch, 14 is a first reference optical fiber, 15 is a first Faraday optical rotator, 16 is a fourth optical fiber coupler, 17 is a third photodetector, 18 is a third data acquisition card, 19 is a third optical fiber interface, 20 is a fifth optical fiber coupler, 21 is a fourth photodetector, 22 is a fourth data acquisition card, 23 is a fourth optical fiber interface, 24 is a second optical switch, 25 is a second reference optical fiber, 26 is a second Faraday optical rotator, 27 is a second optical filter, 28 is a variable optical attenuator, 29 is a microprocessor, 30 is a rotating glass color disc, 31 is a fifth optical fiber interface, 32 is a sixth optical fiber interface, 33 is a display module, 34 is a seventh optical fiber interface, 35 is a third Faraday optical rotator, 36 is a fourth Faraday optical rotator, 37 is a fifth Faraday optical rotator, 38 is a sixth Faraday optical rotator, 39 is a sensing module, 40 is a first magic tape, and 41 is a second magic tape. DETAILED DESCRIPTION

[0026] As Figure 1 and 2As shown, the application provides an interactive foreign language speech training auxiliary system for children with hearing impairment, which comprises a neck collar with a multi-core plastic optical fiber embedded therein and a demodulator, and an optical fiber interface is reserved on the neck collar, and the neck collar and the demodulator are connected through the optical fiber. The application realizes close fitting with the throat by embedding the multi-core plastic optical fiber into the neck collar, and a multi-path Michelson interference structure is formed by using an optical filter in the demodulator to accurately perceive the throat vibration spectrum. The frequency, intensity, duration and other parameters of the speech are converted into visual light signals for display in the plastic optical fiber. Through wavelength coding technology, the speech fundamental frequency band is mapped into a visible spectrum, so that the speech of different fundamental frequency bands corresponds to visible light of different colors, and the speech intensity is characterized by light intensity gradient, so as to construct a multi-dimensional "light-sound" mapping model of light wavelength-light intensity. This multi-modal feedback mechanism can form a "tactile-visual" dual-channel reinforcement learning: tactile provides real-time physiological feedback, and photoelectric signals construct an abstract speech model, and the two work together to improve the speech feature recognition degree.

[0027] As shown in the Figure 1 The demodulator provided by the application comprises an SLED super-wideband light source 1, an LED light source 2, a first optical fiber coupler 3, a first optical filter 4, a second optical fiber coupler 5, a first photodetector 6, a first data acquisition card 7, a first optical fiber interface 8, a third optical fiber coupler 9, a second photodetector 10, a second data acquisition card 11, a second optical fiber interface 12, a first optical switch 13, a first reference optical fiber 14, a first Faraday optical rotator 15, a fourth optical fiber coupler 16, a third photodetector 17, a third data acquisition card 18, a third optical fiber interface 19, a fifth optical fiber coupler 20, a fourth photodetector 21, a fourth data acquisition card 22, a fourth optical fiber interface 23, a second optical switch 24, a second reference optical fiber 25, a second Faraday optical rotator 26, a second optical filter 27, a variable optical attenuator 28, a microprocessor 29, a rotating glass color disc 30, a fifth optical fiber interface 31, a sixth optical fiber interface 32, a display module 33, a seventh optical fiber interface 34, a sensing module 39, a first magic tape 40, and a second magic tape 41. The sensing module 39 comprises a third Faraday optical rotator 35, a fourth Faraday optical rotator 36, a fifth Faraday optical rotator 37, a sixth Faraday optical rotator 38, a sensing optical fiber a, a sensing optical fiber b, a sensing optical fiber c, and a sensing optical fiber d.

[0028] The SLED broadband light source 1 outputs continuous light with a center wavelength of 1310 nm and a spectral width of 100 nm, and the LED light source 2 outputs continuous light with a wavelength of 380-750 nm, which are connected to the input end a and the input end b of the first fiber coupler 3, respectively, to realize multi-wave field laser output; the output end c of the first fiber coupler 3 is connected to the input end e of the first optical filter 4 to realize 850 nm band-pass filtering; in order to realize the sensing of the full-area vibration signal, the detection light output from the a, b, c and d ports of the first optical filter 4 is configured as a four-way Michelson interference optical path.

[0029] The first interference optical path is that the output end a of the first optical filter 4 is connected to the port b of the second fiber coupler 5 to provide a light source for the interference structure; the port c of the second fiber coupler 5 is connected to the a input end of the seventh fiber interface 34 through the first fiber interface 8, the output end e of the seventh fiber interface 34 is connected to the sensing optical fiber a, the detection light containing vibration information returns after being reflected by the third Faraday optical rotator 35, and finally is input to the second fiber coupler 5 through the port c; the port d of the second fiber coupler 5 outputs the detection light to the input end a of the first optical switch 13, the output end c of the first optical switch 13 is connected to the first reference optical fiber 14, and after being reflected by the first Faraday optical rotator 15, the detection light is input to the port d of the second fiber coupler 5, one of which contains light with a specific wavelength range and the other of which does not contain signals with a specific wavelength, and after the interference of the two at the second fiber coupler 5, the detection light is connected to the input end a of the first photodetector 6 through the port a for the observation and detection of interference fringes, the output end b of the first photodetector 6 is connected to the input end a of the first data acquisition card 7 for recording and storing the collected data; the output end b of the first data acquisition card 7 is connected to the input end c of the microprocessor 29, and the microprocessor 29 outputs corresponding instruction signals after analyzing and processing the stored data.

[0030] The second interference light path is: the output end b of the first optical filter 4 is connected to the port a of the third optical fiber coupler 9 to provide a light source; the port d of the third optical fiber coupler 9 is connected to the b input end of the seventh optical fiber interface 34 through the second optical fiber interface 12, the output end f of the seventh optical fiber interface 34 is connected to the sensing optical fiber b, the detection light containing vibration information returns after being reflected by the fourth Faraday optical rotator 36, and finally is input to the third optical fiber coupler 9 through the port d; the port c of the third optical fiber coupler 9 outputs the detection light to the input end b of the first optical switch 13, the output end c of the first optical switch 13 is connected to the first reference optical fiber 14, and after being reflected by the first Faraday optical rotator 15, one-way light containing a specific wavelength range and one-way light not containing a specific wavelength are input to the port c of the third optical fiber coupler 9, and after interference, the light is connected to the input end a of the second photodetector 10 through the port b, the observation and detection of interference fringes are carried out, the output end b of the second photodetector 10 is connected to the input end a of the second data acquisition card 11, and the collected data is recorded and stored; the output end b of the second data acquisition card 11 is connected to the input end a of the microprocessor 29, corresponding instruction signals are output after the microprocessor 29 analyzes and processes the stored data; the input ends of the first optical switch 13 are respectively connected to the port d of the second optical fiber coupler 5 and the port c of the third optical fiber coupler 9, and a two-way reflection loop detection mechanism is formed.

[0031] The third interference light path is: the output end c of the first optical filter 4 is connected to the port b of the fourth optical fiber coupler 16 to provide a light source; the fourth optical fiber coupler 16 is connected to the c input end of the seventh optical fiber interface 34 through the third optical fiber interface 19, the output end g of the seventh optical fiber interface 34 is connected to the sensing optical fiber c, the detection light containing vibration information returns after being reflected by the fifth Faraday optical rotator 37, and finally is input to the fourth optical fiber coupler 16 through the port c; the port d of the fourth optical fiber coupler 16 outputs the detection light to the input end a of the second optical switch 24, the output end c of the second optical switch 24 is connected to the second reference optical fiber 25, and after being reflected by the second Faraday optical rotator 26, one-way light containing a specific wavelength range and one-way light not containing a specific wavelength are input to the port d of the fourth optical fiber coupler 16, and after interference, the light is connected to the input end a of the third photodetector 17 through the port a, the observation and detection of interference fringes are carried out, the output end b of the third photodetector 17 is connected to the input end a of the third data acquisition card 18, and the collected data is recorded and stored; the output end b of the third data acquisition card 18 is connected to the input end d of the microprocessor 29, and corresponding instruction signals are output after the microprocessor 29 analyzes and processes the stored data.

[0032] The fourth interference light path is: the output end d of the first optical filter 4 is connected to the port a of the fifth fiber coupler 20 to provide a light source; the port d of the fifth fiber coupler 20 is connected to the d input end of the seventh fiber interface 34 through the fourth fiber interface 23, and the output end h of the seventh fiber interface 34 is connected to the sensing fiber d; the detection light containing vibration information returns after being reflected by the sixth Faraday optical rotator 38 and finally enters the fifth fiber coupler 20 through the port d; the port c of the fifth fiber coupler 20 outputs the detection light to the input end b of the second optical switch 24, and the output end c of the second optical switch 24 is connected to the second reference optical fiber 25; after being reflected by the second Faraday optical rotator 26, the detection light is input to the port c of the fifth fiber coupler 20, one of which contains light of a specific wavelength range and the other of which does not contain signals of a specific wavelength; after interference, the detection light is connected to the input end a of the fourth photodetector 21 through the port b, and the interference fringes are observed and detected; the output end b of the fourth photodetector 21 is connected to the input end a of the fourth data acquisition card 22, and the collected data is recorded and stored; the output end b of the fourth data acquisition card 22 is connected to the input end b of the microprocessor 29, and the microprocessor 29 outputs corresponding instruction signals after analyzing and processing the stored data; the input ends of the second optical switch 24 are respectively connected to the port d of the fourth fiber coupler 16 and the port c of the fifth fiber coupler 20, forming a two-reflection-loop detection mechanism.

[0033] The output end d of the first fiber coupler 3 is connected to the input end a of the second optical filter 27, which filters out light of other unnecessary wavelengths; after the continuous light passes through the 380nm high-pass filter and the 750nm low-pass filter, the output end b of the second optical filter 27 outputs visible light with a wavelength of 380-750nm; the output end e of the microprocessor 29 is connected to the control end b of the variable optical attenuator 28, and the gain of the variable optical attenuator 28 is controlled according to the intensity information of the perceived vibration signal; the output end f of the microprocessor 29 is connected to the control end b of the rotating glass color disc 30, and the color disc is rotated to the target color block according to the frequency information of the collected vibration signal; the output visible light of the second optical filter 27 enters the input end a of the variable optical attenuator 28, adjusts the output light illumination, and then enters the input end a of the rotating glass color disc 30 from the output end c of the variable optical attenuator 28; the output end c of the rotating glass color disc 30 outputs light of different colors after being filtered by different color blocks; the output end c of the rotating glass color disc 30 is connected to the fifth fiber interface 31; the fifth fiber interface 31 is connected to the input end a of the sixth fiber interface 32, and the output end b of the sixth fiber interface 32 is connected to the display module 33 to display light of different intensities and colors corresponding to different information.

[0034] Figure 2It is a collet layout scheme provided by the embodiment of the application, a sixth optical fiber interface 32 and a seventh optical fiber interface 34 are arranged at the bottom end of the collet, a display module 33 and a sensing module 39 are arranged in the main body part of the collet, wherein the sensing optical fiber a in the sensing module 39 is connected with the third Faraday optical rotator 35, the sensing optical fiber b is connected with the fourth Faraday optical rotator 36, the sensing optical fiber c is connected with the fifth Faraday optical rotator 37, and the sensing optical fiber d is connected with the sixth Faraday optical rotator 38, and a first magic tape 40 and a second magic tape 41 are installed at both ends. The first magic tape 40 and the second magic tape 41 are connected to fix the collet.

[0035] When Figure 2 When the sensing optical fibers a, b, c and d detect the vibration signal, the signal is reflected back to the four-way Michelson interference structure through the third Faraday optical rotator 35, the fourth Faraday optical rotator 36, the fifth Faraday optical rotator 37 and the sixth Faraday optical rotator 38, and after the corresponding photodetector and data acquisition card, the microprocessor 29 converts the corresponding vibration intensity information into the gain control of the variable optical attenuator 28, and converts the corresponding vibration frequency information into the color block control of the rotating glass color disc 30. Different vibration information presents different brightness and color in the optical fiber of the display module 33.

[0036] In the embodiment, the sensing optical fibers a, b, c and d are plastic optical fibers, which are used for sensing, and the optical fiber in the display module 33 is also a plastic optical fiber, which is used for color display.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. An interactive foreign language speech training aid system for hearing impaired children, characterized in that: The neck collar is internally provided with a sensing module (39), and is provided with a fiber interface, and is connected with the demodulator through the fiber. The demodulator is internally provided with a SLED ultra-wideband light source (1), an LED light source (2), a first fiber coupler (3), a first optical filter (4), a second optical filter (27), a variable optical attenuator (28), a microprocessor (29), a rotating glass color disc (30), and a plurality of fiber interfaces, the SLED ultra-wideband light source (1) and the LED light source (2) are respectively connected to the input end a and the input end b of the first fiber coupler (3), the output end c of the first fiber coupler (3) is connected to the input end e of the first optical filter (4), the output end d of the first fiber coupler (3) is connected to the input end a of the second optical filter (27), the output end b of the second optical filter (27) is connected to the input end a of the variable optical attenuator (28), the control end b of the variable optical attenuator (28) is connected to the output end e of the microprocessor (29), the output end c of the variable optical attenuator (28) is connected to the input end a of the rotating glass color disc (30), the control end b of the rotating glass color disc (30) is connected to the output end f of the microprocessor (29), and the output end c of the rotating glass color disc (30) is connected to the fifth fiber interface (31) for connecting the total fiber interface on the neck collar. The detection light of the multiple output ports of the first optical filter (4) is configured as a Michelson interference light path, each Michelson interference light path is connected to the input port of the microprocessor (29) through a photoelectric detector and a data acquisition card, and each Michelson interference light path is also connected to a fiber interface, and the Michelson interference light path and the sensing module (39) in the neck collar are connected through the fiber interface, the sensing module (39) detects the vibration signal and reflects it back to the Michelson interference light path, after the photoelectric detector and the data acquisition card, the microprocessor (29) converts the corresponding vibration intensity information into the gain control of the variable optical attenuator (28), and converts the corresponding vibration frequency information into the color block control of the rotating glass color disc (30).

2. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 1 wherein: The sensing module (39) comprises a plurality of sensor fibers, and each sensor fiber is connected to a Faraday rotator.

3. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 2 wherein: The neck collar is also provided with a display module (33) for presenting different vibration information as different brightness and colors.

4. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 1 wherein: The first optical filter (4) comprises four output ports a, b, c and d, the detection light output by the four output ports is configured as four Michelson interference light paths, the sensing module (39) is provided with four sensor fibers and four Faraday rotators corresponding to the four Michelson interference light paths, and the neck collar is provided with a sixth fiber interface (32) and a seventh fiber interface (34).

5. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 4 wherein: The first Michelson interference optical path comprises a second optical fiber coupler (5), a first photodetector (6), a first data acquisition card (7), a first optical fiber interface (8), the output end a of the first optical filter (4) is connected to the port b of the second optical fiber coupler (5), so that the light source passes in one direction; the port a of the second optical fiber coupler (5) is connected to the input end a of the first photodetector (6); the output end b of the first photodetector (6) is connected to the input end a of the first data acquisition card (7), and data acquisition is performed on the signal; the output end b of the first data acquisition card (7) is connected to the input end c of the microprocessor (29), and data analysis and processing are performed; the port c of the second optical fiber coupler (5) is connected to the first optical fiber interface (8), and the first optical fiber interface (8) is connected to the input end a of the seventh optical fiber interface (34); the port d of the second optical fiber coupler (5) is connected to the input end a of the first optical switch (13), and the output end c of the first optical switch (13) is connected to the input end a of the first reference optical fiber (14); The output end b of the first reference optical fiber (14) is connected to the first Faraday optical rotator (15).

6. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 5 wherein: The second Michelson interference optical path comprises a third optical fiber coupler (9), a second photodetector (10), a second data acquisition card (11), a second optical fiber interface (12), the output end b of the first optical filter (4) is connected to the port a of the third optical fiber coupler (9), so that the light source passes in one direction; the port b of the third optical fiber coupler (9) is connected to the input end a of the second photodetector (10); the output end b of the second photodetector (10) is connected to the input end a of the second data acquisition card (11), and data acquisition is performed on the signal; the output end b of the second data acquisition card (11) is connected to the input end a of the microprocessor (29), and data analysis and processing are performed; the d port of the third optical fiber coupler (9) is connected to the second optical fiber interface (12), and the second optical fiber interface (12) is connected to the input end b of the seventh optical fiber interface (34); the port c of the third optical fiber coupler (9) is connected to the input end b of the first optical switch (13).

7. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 4 wherein: The third Michelson interference optical path comprises a fourth optical fiber coupler (16), a third photodetector (17), a third data acquisition card (18), a third optical fiber interface (19), the output end c of the first optical filter (4) is connected to the port b of the fourth optical fiber coupler (16), so that the light source passes through in one direction; the port a of the fourth optical fiber coupler (16) is connected to the input end a of the third photodetector (17); the output end b of the third photodetector (17) is connected to the input end a of the third data acquisition card (18), and the signal is data collected; the output end b of the third data acquisition card (18) is connected to the input end d of the microprocessor (29), and data analysis and processing are performed; the port c of the fourth optical fiber coupler (16) is connected to the third optical fiber interface (19), and the third optical fiber interface (19) is connected to the input end c of the seventh optical fiber interface (34); the port d of the fourth optical fiber coupler (16) is connected to the input end a of the second optical switch (24); the output end c of the second optical switch (24) is connected to the input end a of the second reference optical fiber (25); The output end b of the second reference optical fiber (25) is connected to the second Faraday optical rotator (26).

8. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 7 wherein: The fourth Michelson interference optical path comprises a fifth optical fiber coupler (20), a fourth photodetector (21), a fourth data acquisition card (22), a fourth optical fiber interface (23), the output end d of the first optical filter (4) is connected to the port a of the fifth optical fiber coupler (20), so that the light source passes through in one direction; the port b of the fifth optical fiber coupler (20) is connected to the input end a of the fourth photodetector (21); the output end b of the fourth photodetector (21) is connected to the input end a of the fourth data acquisition card (22), and the signal is data collected; the output end b of the fourth data acquisition card (22) is connected to the input end b of the microprocessor (29), and data analysis and processing are performed; the port d of the fifth optical fiber coupler (20) is connected to the fourth optical fiber interface (23); the fourth optical fiber interface (23) is connected to the input end d of the seventh optical fiber interface (34); the port c of the fifth optical fiber coupler (20) is connected to the input end b of the second optical switch (24).

9. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 4 wherein: The input end a of the seventh fiber interface (34) is connected to the output end e of the seventh fiber interface (34), and the output end e of the seventh fiber interface (34) is connected to the third Faraday optical rotator (35) through the sensing fiber a in the sensing module (39); the input end b of the seventh fiber interface (34) is connected to the output end f of the seventh fiber interface (34); the output end f of the seventh fiber interface (34) is connected to the fourth Faraday optical rotator (36) through the sensing fiber b in the sensing module (39); the input end c of the seventh fiber interface (34) is connected to the output end g of the seventh fiber interface (34); the output end g of the seventh fiber interface (34) is connected to the fifth Faraday optical rotator (37) through the sensing fiber c in the sensing module (39); the input end d of the seventh fiber interface (34) is connected to the output end h of the seventh fiber interface (34); the output end h of the seventh fiber interface (34) is connected to the sixth Faraday optical rotator (38) through the sensing fiber d in the sensing module (39); the fifth fiber interface (31) is connected to the input end a of the sixth fiber interface (32); and the output end b of the sixth fiber interface (32) is connected to the optical fiber in the display module (33).

10. The interactive foreign language speech training aid system for hearing impaired children as claimed in claim 1 wherein: The two ends of the neck sleeve are respectively provided with a first magic tape (40) and a second magic tape (41), and the first magic tape (40) is pasted to the second magic tape (41) during use.

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