CN211406278U - Protective mask type bidirectional auxiliary listening device - Google Patents
Protective mask type bidirectional auxiliary listening device Download PDFInfo
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- CN211406278U CN211406278U CN202020477426.7U CN202020477426U CN211406278U CN 211406278 U CN211406278 U CN 211406278U CN 202020477426 U CN202020477426 U CN 202020477426U CN 211406278 U CN211406278 U CN 211406278U
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Abstract
The utility model discloses a two-way supplementary listening device of protection mask formula, including the face guard main part, still include first microphone, second microphone, first speaker, second speaker, digital signal processor and full duplex wireless module, first microphone and first speaker set up in the outside of face guard main part, and second microphone and second speaker set up in the inside of face guard main part, and digital signal processor all is connected with first microphone, second microphone, first speaker, second speaker and full duplex wireless module. The utility model discloses a two-way supplementary listening device of protection mask formula can realize sound signal's two-way transmission, even wear the protection mask, also can guarantee that medical personnel and disease exchange ability each other is not influenced.
Description
Technical Field
The utility model relates to a hearing equipment field, in particular to two-way supplementary listening device of protection mask formula.
Background
The protective mask is a tool for protecting the face and the neck from flying metal debris, harmful gas, liquid splash, metal and high-temperature solvent flying powder damage, is widely used in the medical field, and particularly when a patient with strong infectivity needs to be contacted, medical workers need to wear the mask with high protective capacity, the wrapping area of the mask with ideal protective capacity is larger, and the full-bag design has strong protective effect.
However, in order to achieve a good protection effect, the protection mask on the market at present not only shields the mouth and nose of medical staff, but also shields the ears of the medical staff, and the medical staff wearing the protection mask can hardly hear the description of the patient, so that the situation of difficult communication is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two-way supplementary listening device of protection mask formula can solve medical personnel and also have the protective mask who shields the effect to mouth and ear when using, also can relax and communicate with the disease, improves medical personnel and disease exchange ability each other, can solve one of above-mentioned problem at least.
According to an aspect of the utility model, a protective mask type bidirectional hearing assisting device is provided, which comprises a mask main body, a first microphone, a second microphone, a first loudspeaker, a second loudspeaker, a digital signal processor and a full-duplex wireless module, wherein the first microphone and the first loudspeaker are arranged outside the mask main body, the second microphone and the second loudspeaker are arranged inside the mask main body, and the digital signal processor is connected with the first microphone, the second microphone, the first loudspeaker, the second loudspeaker and the full-duplex wireless module;
the first microphone is configured to collect sound signals outside the mask body;
the second microphone is configured to collect sound signals inside the mask body;
the digital signal processor and the full-duplex wireless module are configured to process sound signals collected by the first microphone and the second microphone;
the first loudspeaker is configured to play the sound signal collected by the second microphone;
the second loudspeaker is configured to play the sound signal collected by the first microphone.
Therefore, the utility model provides a protective mask of brand-new structure, the cooperation of first microphone and second speaker can be effectual with the outside sound transmission of face guard main part to the user who wears protective mask, and the cooperation of second microphone and first speaker can be effectual again with the sound signal that the user who wears protective mask sent outside conveying away from the face guard main part is inside. The utility model discloses a two-way supplementary listening device of protection mask formula can realize sound signal's two-way transmission, even wear the protection mask, also can guarantee that medical personnel and disease exchange ability each other is not influenced.
In some embodiments, the second microphone is a bone conduction microphone. Therefore, the utility model discloses a second microphone can be installed in the inside of the face guard main part that corresponds with human throat. The voice is collected by utilizing the bone conduction of the throat, and the loss rate of the voice in the bone conduction is far lower than that in the air conduction, so that the speaker can accurately transmit the voice to be expressed only by making a small voice, and the voice collection effect is better.
In some embodiments, the second speaker is a bone conduction speaker. Therefore, the utility model discloses a second speaker can be installed in the inside of the face guard main part that corresponds with human ear for during the use, make the second speaker hug closely near ear bone, the sound of collecting from first microphone can be with the mode of sound wave direct through the bone to hear the nerve, from this, even wear protective mask, the user also can be accurate hear outside sound.
In some embodiments, the protective-mask-type bidirectional hearing-aid device further comprises an a/D converter, one end of the a/D converter is connected with the first microphone and the second microphone, and the other end of the a/D converter is connected with the digital signal processor.
In some embodiments, the protective mask type bidirectional hearing aid further comprises a D/a converter, one end of the D/a converter is connected with the first loudspeaker and the second loudspeaker, and the other end of the D/a converter is connected with the digital signal processor.
In some embodiments, the protective mask type bidirectional hearing aid further comprises an audio amplifier, one end of the audio amplifier is connected with the D/a converter, and the other end of the audio amplifier is respectively connected with the first loudspeaker and the second loudspeaker.
In some embodiments, the mask body includes a cap, a cover panel, and a head ring, the cap is sleeved on the head, the cover panel is connected to a brim of the cap, the first microphone and the first speaker are disposed on the cover panel, the second microphone and the second speaker are disposed inside the cap, and the head ring is disposed inside the cap and located at a top end of the head. Therefore, when the whole protective mask is sleeved on the head, the head ring can play a good fixing role.
In some embodiments, the protective mask type bi-directional hearing assistance device further comprises a power supply electrically connected to the first microphone, the first speaker, the second microphone, the second speaker and the digital signal processor. Therefore, the power supply can be arranged in the cap body to supply power to all parts; the power supply can adopt replaceable button electronics or batteries, and the use is more convenient.
In some embodiments, the number of first microphones is two. Therefore, the two first microphones can be arranged on the left side and the right side of the outer surface of the face mask panel to form a double-microphone system, and multi-directional sound sources can be effectively collected.
The utility model has the advantages that:
the utility model provides a protective face mask of brand-new structure, the cooperation of first microphone and second speaker can be effectual communicate the outside sound of face guard main part to the user who wears protective face mask, and the cooperation of second microphone and first speaker can be effectual again and will wear the sound signal that the user of protective face mask sent and communicate away from face guard main part is inside. The utility model discloses a two-way supplementary listening device of protection mask formula can realize sound signal's two-way transmission, even wear the protection mask, also can guarantee that medical personnel and disease exchange ability each other is not influenced.
Drawings
Fig. 1 is a simplified schematic perspective view of a protective mask type bidirectional hearing aid according to an embodiment of the present invention;
FIG. 2 is a schematic side view of the protective mask type bi-directional hearing aid shown in FIG. 1;
FIG. 3 is a schematic front view of a portion of the protective mask type bi-directional hearing aid shown in FIG. 1;
fig. 4 is a schematic circuit diagram of the protective mask type bidirectional hearing aid shown in fig. 1.
Reference numerals in FIGS. 1 to 4: 1-a mask body; 2-a first microphone; 3-a second microphone; 4-a first speaker; 5-a second speaker; 6-a digital signal processor; 7-full duplex radio module; an 8-A/D converter; a 9-D/A converter; 10-an audio amplifier; 11-a cap body; 12-a cover panel; 13-head circle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 to 4 schematically show a protective mask type bidirectional hearing aid according to an embodiment of the present invention.
As shown in fig. 1 to 4, the protective mask type bidirectional hearing aid device includes a mask body 1, a first microphone 2, a second microphone 3, a first speaker 4, a second speaker 5, a digital signal processor 6, and a full-duplex wireless module 7. The first microphone 2 and the first speaker 4 are provided outside the mask body 1, and the second microphone 3 and the second speaker 5 are provided inside the mask body 1. The digital signal processor 6 is connected with the first microphone 2, the second microphone 3, the first loudspeaker 4, the second loudspeaker 5 and the full-duplex wireless module 7.
The first microphone 2 is configured to pick up a sound signal outside the mask body 1;
the second microphone 3 is configured to pick up a sound signal inside the mask body 1;
the digital signal processor 6 and the full-duplex wireless module 7 are configured to process the sound signals collected by the first microphone 2 and the second microphone 3;
the first loudspeaker 4 is configured to play the sound signal collected by the second microphone 3;
the second speaker 5 is configured to play the sound signal collected by the first microphone 2.
The digital signal processor 6 of this embodiment can be the DSP chip, and the full duplex wireless module 7 of this embodiment can integrate in the DSP chip, and the effect of full duplex wireless module 7 is the bidirectional transmission who realizes the inside and outside sound signal of face guard for the speech can go on with listening to in step, from this, can speak and listen to at will, has made things convenient for personnel's communication.
The second microphone 3 of the present embodiment is a bone conduction microphone. Specifically, the second microphone 3 may be installed inside the mask body 1 corresponding to the throat of the human body. After wearing protective mask, second microphone 3 can laminate throat bone, utilizes throat bone conduction to collect sound, because the loss rate of sound at bone conduction is less than the air conduction far away, therefore the speaker only need send very little sound just can accurate transmission want the sound of expression, and sound collection effect is better.
The second speaker 5 of the present embodiment is a bone conduction speaker. Specifically, the second speaker 5 may be installed inside the mask body 1 corresponding to the ear of the human body, so that the second speaker 5 is closely attached to the bone near the ear when in use, and the sound collected from the first microphone 2 is directly transmitted to the auditory nerve through the bone in the form of sound wave, thereby allowing the user to accurately hear the external sound even when wearing the protective mask.
As shown in fig. 4, the protective-mask type bidirectional hearing aid of the present embodiment further includes an a/D converter 8, a D/a converter 9, and an audio amplifier 10. One end of the a/D converter 8 is connected to the first microphone 2 and the second microphone 3, and the other end is connected to the digital signal processor 6. One end of the D/a converter 9 is connected to the first speaker 4 and the second speaker 5, and the other end is connected to the digital signal processor 6. One end of the audio amplifier 10 is connected to the D/a converter 9, and the other end is connected to the first speaker 4 and the second speaker 5, respectively. The a/D converter 8, D/a converter 9, audio amplifier 10 and full duplex radio module 7 may all be integrally mounted to the digital signal processor 6. The a/D converter 8 is configured to convert the analog signal into a digital signal; the digital signal processor 6 is configured to process the digital signal; the D/a converter is configured to convert the digital signal delivered by the digital signal processor 6 into an analog signal; the audio amplifier 10 is configured to amplify the analog signal delivered from the D/a converter and output the amplified analog signal through the first speaker 4 and the second speaker 5.
As shown in fig. 1 to 3, the mask body 1 of the present embodiment may be a full-bag type protective mask commonly available in the market, and specifically may include a cap body 11, a mask body panel 12, and a head band 13. The cap body 11 is sleeved on the head, and a cap panel 12 is connected to the brim of the cap body 11. The first microphone 2 and the first speaker 4 are disposed on the cover panel 12, and the second microphone 3 and the second speaker 5 are disposed inside the cap 11. The head ring 13 is arranged inside the cap body 11 and is positioned at the top end of the head. Therefore, when the whole protective mask is sleeved on the head, the head ring 13 can play a good fixing role.
As shown in fig. 3, the number of the first microphones 2 may be two. Therefore, the sound inlet holes of the two first microphones 2 can be formed in the left side and the right side of the outer surface of the face mask panel to form a double-microphone system, and multi-directional sound sources can be effectively collected.
The protective mask type bidirectional hearing aid device further comprises a power supply. The power source may be mounted inside or outside the cap 11. The power supply is electrically connected with the first microphone 2, the first loudspeaker 4, the second microphone 3, the second loudspeaker 5 and the digital signal processor 6. Thus, the power source may be provided inside the cap 11 for the purpose of powering the various components; the power supply can adopt replaceable button electronics or batteries, and the use is more convenient.
The utility model provides a protective mask of brand-new structure, first microphone 2 can effectually convey the outside sound of face guard main part 1 to the user who wears protective mask with the cooperation of second speaker 5, and second microphone 3 can effectually again convey away from face guard main part 1 inside with the sound signal that the user who wears protective mask sent with the cooperation of first speaker 4.
The utility model discloses a two-way supplementary listening device of protection mask formula can realize sound signal's two-way transmission, and the specially adapted medical personnel even wear the protection mask, also can guarantee that medical personnel and disease exchange ability each other are not influenced.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (9)
1. The protective mask type bidirectional hearing assisting device comprises a mask main body (1) and is characterized by further comprising a first microphone (2), a second microphone (3), a first loudspeaker (4), a second loudspeaker (5), a digital signal processor (6) and a full-duplex wireless module (7), wherein the first microphone (2) and the first loudspeaker (4) are arranged outside the mask main body (1), the second microphone (3) and the second loudspeaker (5) are arranged inside the mask main body (1), and the digital signal processor (6) is connected with the first microphone (2), the second microphone (3), the first loudspeaker (4), the second loudspeaker (5) and the full-duplex wireless module (7);
the first microphone (2) is configured to collect a sound signal outside the mask body (1);
the second microphone (3) is configured to collect a sound signal inside the mask body (1);
the digital signal processor (6) and the full-duplex wireless module (7) are configured to process sound signals collected by the first microphone (2) and the second microphone (3);
the first loudspeaker (4) is configured to play the sound signal collected by the second microphone (3);
the second loudspeaker (5) is configured to play the sound signal collected by the first microphone (2).
2. A protective-mask bi-directional hearing device according to claim 1, wherein the second microphone (3) is a bone-conduction microphone.
3. A protective-mask bi-directional hearing device according to claim 1, wherein the second speaker (5) is a bone conduction speaker.
4. The protective-mask bi-directional hearing device according to claim 1, further comprising an a/D converter (8), wherein one end of the a/D converter (8) is connected to the first microphone (2) and the second microphone (3), and the other end is connected to the digital signal processor (6).
5. The protective-mask type two-way hearing device according to claim 1, further comprising a D/a converter (9), wherein one end of the D/a converter (9) is connected to the first speaker (4) and the second speaker (5), and the other end is connected to the digital signal processor (6).
6. The protective-mask type bidirectional hearing-aid device according to claim 5, further comprising an audio amplifier (10), wherein one end of the audio amplifier (10) is connected with the D/A converter (9), and the other end is respectively connected with the first loudspeaker (4) and the second loudspeaker (5).
7. The protective mask type bidirectional hearing aid device according to any one of claims 1 to 6, wherein the mask body (1) comprises a cap body (11), a cap body panel (12) and a head ring (13), the cap body (11) is sleeved on the head, the cap body panel (12) is connected to the brim of the cap body (11), the first microphone (2) and the first speaker (4) are arranged on the cap body panel (12), the second microphone (3) and the second speaker (5) are arranged inside the cap body (11), and the head ring (13) is arranged inside the cap body (11) and located at the top end of the head.
8. The protective-mask type bi-directional hearing aid according to any one of claims 1 to 6, further comprising a power supply electrically connected to the first microphone (2), the first speaker (4), the second microphone (3), the second speaker (5) and the digital signal processor (6).
9. A protective-mask bi-directional hearing device according to any of claims 1 to 6, characterized in that the number of first microphones (2) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020477426.7U CN211406278U (en) | 2020-04-03 | 2020-04-03 | Protective mask type bidirectional auxiliary listening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020477426.7U CN211406278U (en) | 2020-04-03 | 2020-04-03 | Protective mask type bidirectional auxiliary listening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211406278U true CN211406278U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020477426.7U Active CN211406278U (en) | 2020-04-03 | 2020-04-03 | Protective mask type bidirectional auxiliary listening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211406278U (en) |
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2020
- 2020-04-03 CN CN202020477426.7U patent/CN211406278U/en active Active
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