CN216132559U - In-ear sound pressure measuring device and hearing protector - Google Patents
In-ear sound pressure measuring device and hearing protector Download PDFInfo
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- CN216132559U CN216132559U CN202121476234.5U CN202121476234U CN216132559U CN 216132559 U CN216132559 U CN 216132559U CN 202121476234 U CN202121476234 U CN 202121476234U CN 216132559 U CN216132559 U CN 216132559U
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Abstract
The utility model provides an in-ear sound pressure measuring device and a sound protector. The second detection circuit is arranged on the inner side surface. The control circuit is provided with a first detection end and a second detection end, the first detection end of the control circuit is connected with the output end of the first detection circuit, and the second detection end of the control circuit is electrically connected with the output end of the second detection circuit. Therefore, the problem that whether sound leakage exists or not cannot be determined after the hearing protector is worn in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of sound pressure measurement, in particular to an in-ear sound pressure measuring device and a sound protector.
Background
At present, the damage of high-noise workplaces to the hearing of people is generally protected by wearing a hearing protector. And the quantification of the protection is that a hearing protector corresponding to the sound insulation quantity is worn according to the noise intensity in the field. Headsets are the most common type of hearing protection device.
When the existing hearing protector is worn, sound leakage can exist due to individual wearing difference, and human hearing cannot be effectively protected. However, the sound leakage cannot be detected in the existing hearing protector, so that the hearing protector is disabled.
SUMMERY OF THE UTILITY MODEL
The utility model provides a detection method of tympanic membrane acoustic signals, which is used for solving the defect that whether acoustic leakage exists cannot be determined after a hearing protector is worn in the prior art and realizing accurate detection of the acoustic leakage.
The present invention provides an in-ear sound pressure measurement device, including:
the earmuff body is provided with an outer side surface and an inner side surface, and a cavity is formed between the inner side surface and a wearer when the inner side surface is attached to the wearer;
the first detection circuit is arranged on the outer side face and used for detecting real-time sound signals outside the earmuffs;
the second detection circuit is arranged on the inner side surface and is used for detecting real-time intracavity acoustic signals on the inner side of the earmuffs;
the control circuit is provided with a first detection end and a second detection end, the first detection end of the control circuit is connected with the output end of the first detection circuit, the second detection end of the control circuit is electrically connected with the output end of the second detection circuit, and the sound leakage of the in-ear sound pressure measuring device is determined when the ratio of the real-time sound signal to the real-time intracavity sound signal is smaller than a preset ratio.
According to the in-ear sound pressure measuring device provided by the utility model, the in-ear sound pressure measuring device further comprises a wearing part, wherein the wearing part is rotatably connected with the ear muff body and is used for forming a cavity between the ear muff body and the human ear when a user wears the in-ear sound pressure measuring device.
According to the in-ear sound pressure measurement device provided by the present invention, the wearing portion is fixed by one or more of the following means: gluing, magnetic attraction or spring elastic fixation.
According to the in-ear sound pressure measuring device provided by the utility model, the in-ear sound pressure measuring device further comprises a wireless communication circuit, the control circuit further comprises a communication end, and the communication end of the wireless communication circuit is electrically connected with the communication end of the control circuit;
the wireless communication circuit is used for transmitting control information and data information.
According to the in-ear sound pressure measuring device provided by the utility model, the in-ear sound pressure measuring device further comprises a charging power supply circuit, wherein the charging power supply circuit comprises a power supply input end and a power supply output end; the power input end of the charging power supply circuit is connected with a power supply, and the power output end of the charging power supply circuit provides a working power supply for each circuit of the in-ear sound pressure measuring device.
According to the in-ear sound pressure measuring device provided by the utility model, the charging power supply circuit comprises a charging power supply circuit, a charging battery and a charging interface, the charging power supply circuit is respectively connected with the charging battery and the charging interface, the charging interface is a power supply input end of the charging power supply circuit, and an output end of the charging power supply circuit is a power supply output end of the charging power supply circuit.
According to the in-ear sound pressure measuring device provided by the utility model, when the charging interface is a data charging interface, the control circuit further comprises a data terminal, and the data terminal of the control circuit is electrically connected with the charging interface.
According to the in-ear sound pressure measuring device provided by the utility model, the in-ear sound pressure measuring device further comprises a prompting circuit, wherein the controlled end of the prompting circuit is connected with the control end of the control circuit;
and the prompting circuit is used for prompting according to the prompting signal output by the control circuit.
The utility model also provides a hearing protector which comprises the two in-ear sound pressure measuring devices, namely a left in-ear sound pressure measuring device and a right in-ear sound pressure measuring device.
The in-ear sound pressure measuring device provided by the utility model detects real-time sound signals outside the earmuffs through the first detection circuit. The second detection circuit detects real-time intracavity sound signals on the inner side of the earmuff, and the control circuit determines the sound leakage of the in-ear sound pressure measuring device when the ratio of the real-time sound signals to the real-time intracavity sound signals is smaller than a preset ratio. Accurate detection of acoustic leakage is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view showing the construction of an in-ear sound pressure measuring apparatus according to the present invention;
FIG. 2 is a circuit diagram of the in-ear sound pressure measuring apparatus according to the present invention;
reference numerals:
11: a second detection circuit; 12: a control circuit; 13: a wireless communication circuit;
14: a charging power supply circuit; 15: a wearing portion; 16: a cue circuit;
17: a first detection circuit; 11: a second detection circuit; 12: a control circuit;
13: a wireless communication circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An in-ear sound pressure measuring apparatus of the present invention is described below with reference to fig. 1 to 2, the in-ear sound pressure measuring apparatus including:
the earmuff body has lateral surface and medial surface, and first detection circuitry locates the lateral surface, second detection circuitry locates medial surface, control circuit have first sense terminal and second sense terminal, control circuit's first sense terminal with first detection circuitry's output is connected, control circuit's second sense terminal with second detection circuitry's output electricity is connected.
Wherein, when the medial surface is attached to a wearer, a cavity is formed between the medial surface and the wearer, the first detection circuit detects the real-time acoustic signal outside the earmuff, and the second detection circuit detects the real-time intracavity acoustic signal inside the earmuff. And the control circuit determines that the sound leakage of the in-ear sound pressure measuring device exists when the ratio of the real-time sound signal to the real-time intracavity sound signal is smaller than a preset ratio. According to the technical scheme, the real-time acoustic signal is detected through implementation, the ratio of the real-time acoustic signal to the real-time acoustic signal in the cavity is obtained, and the ratio is compared with the preset ratio, so that whether the sound leakage condition exists in the in-ear sound pressure measuring device is accurately judged. It should be noted that the preset ratio is the protection degree of the current in-ear sound pressure measuring device measured in the laboratory, that is, the ratio of the real-time sound signal when there is no sound leakage and the in-cavity sound signal.
It should be noted that the first detection circuit 17 and the second detection circuit 11 may be implemented by using standard microphones. The control circuit 12 may be a commonly used control chip.
In an embodiment, the in-ear sound pressure measuring device further comprises a wearing part 15, and the wearing part 15 is rotatably connected with the ear muff body and used for forming a cavity with the human ear when the ear muff body is worn by a user.
The rotary connection at this time can be realized by adopting a rotary connection scheme in the prior art.
In one embodiment, the wearing portion 15 is fixed by one or more of various means such as gluing, magnetic attraction, spring force fixation, etc.
Through the multiple modes, the user can select the mode according to the requirement, and the use of the user is facilitated.
In one embodiment, as shown in fig. 1, the in-ear sound pressure measuring device further includes a wireless communication circuit 13, the control circuit 12 further includes a communication terminal, and the communication terminal of the wireless communication circuit 13 is electrically connected to the communication terminal of the control circuit 12.
The wireless communication circuit 13 performs control information and data information transmission with other devices. The wireless communication circuit 13 may be a communication chip and a communication circuit, which are not described in detail herein.
In one embodiment, the in-ear sound pressure measuring device further includes a charging power supply circuit 14, wherein the charging power supply circuit 14 includes a power input terminal and a power output terminal; the power input end of the charging power supply circuit 14 is connected with a power supply, and the power output end of the charging power supply circuit 14 provides a working power supply for each circuit of the in-ear sound pressure measuring device.
The charging power supply circuit 14 may also be any one of various conventional power supply circuits and power supply chips.
In an embodiment, the charging and power supplying circuit 14 includes a charging and power supplying circuit 14, a rechargeable battery and a charging interface, the charging and power supplying circuit 14 is connected to the rechargeable battery and the charging interface respectively, the charging interface is a power input end of the charging and power supplying circuit 14, and an output end of the charging and power supplying circuit 14 is a power output end of the charging and power supplying circuit 14.
The rechargeable battery can be a storage battery, and power supply of the in-ear sound pressure measuring device can be guaranteed. So that the in-ear sound pressure measuring device can be used for a long time even when the in-ear sound pressure measuring device is out of the environment.
In an embodiment, when the charging interface is a data charging interface, the control circuit 12 further includes a data terminal, and the data terminal of the control circuit 12 is electrically connected to the charging interface.
In one embodiment, the in-ear sound pressure measuring device further comprises a prompting circuit 16, and a controlled terminal of the prompting circuit 16 is connected with a control terminal of the control circuit 12.
The presentation circuit 16 presents the content based on a presentation signal output from the control circuit 12. It should be noted that when the noise receiving amount of the human ear approaches the risk threshold, the prompt circuit 16 may employ a micro speaker in the non-networking case, the prompt circuit 16 may also employ a vibrator or an optical signal generator for prompting, and in the networking case, the prompt information may be sent to the control end.
The following describes a hearing protector of the present invention, which includes two in-ear sound pressure measuring devices, i.e., a left in-ear sound pressure measuring device and a right in-ear sound pressure measuring device.
The left ear in-ear sound pressure measuring device covers the left ear, and a cavity is formed between the inner side surface of the left ear in-ear sound pressure measuring device and a wearer when the inner side surface of the left ear in-ear sound pressure measuring device is attached to the wearer. The right ear in-ear sound pressure measuring device covers the right ear, and a cavity is formed between the inner side surface of the right ear in-ear sound pressure measuring device and a wearer when the inner side surface of the right ear in-ear sound pressure measuring device is attached to the wearer, so that the right ear in-ear sound pressure measuring device and the wearer form a hearing protector.
It should be noted that, since the hearing protector includes the in-ear sound pressure measurement device, all schemes implemented by the in-ear sound pressure measurement device can also be implemented, and details are not described herein.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An in-ear sound pressure measurement device, characterized in that the in-ear sound pressure measurement device comprises:
the earmuff body is provided with an outer side surface and an inner side surface, and a cavity is formed between the inner side surface and a wearer when the inner side surface is attached to the wearer;
the first detection circuit is arranged on the outer side face and used for detecting real-time sound signals outside the earmuffs;
the second detection circuit is arranged on the inner side surface and is used for detecting real-time intracavity acoustic signals on the inner side of the earmuffs;
the control circuit is provided with a first detection end and a second detection end, the first detection end of the control circuit is connected with the output end of the first detection circuit, the second detection end of the control circuit is electrically connected with the output end of the second detection circuit, and the sound leakage of the in-ear sound pressure measuring device is determined when the ratio of the real-time sound signal to the real-time intracavity sound signal is smaller than a preset ratio.
2. The in-ear sound pressure measurement device according to claim 1, further comprising a wearing portion rotatably connected to the earmuff body for forming a cavity with the human ear when worn by a user.
3. The in-ear sound pressure measurement device according to claim 2, wherein the wearing portion is fixed by one or more of the following means: gluing, magnetic attraction or spring elastic fixation.
4. The in-ear sound pressure measurement device according to claim 1, wherein the in-ear sound pressure measurement device further comprises a wireless communication circuit, the control circuit further comprises a communication terminal, and the communication terminal of the wireless communication circuit is electrically connected to the communication terminal of the control circuit;
the wireless communication circuit is used for transmitting control information and data information.
5. The in-ear sound pressure determination apparatus according to claim 1, further comprising a charging power supply circuit including a power input terminal and a power output terminal; the power input end of the charging power supply circuit is connected with a power supply, and the power output end of the charging power supply circuit provides a working power supply for each circuit of the in-ear sound pressure measuring device.
6. The in-ear sound pressure measurement device according to claim 5, wherein the charging and power supply circuit comprises a charging and power supply circuit, a rechargeable battery and a charging interface, the charging and power supply circuit is connected to the rechargeable battery and the charging interface, respectively, the charging interface is a power input terminal of the charging and power supply circuit, and the output terminal of the charging and power supply circuit is a power output terminal of the charging and power supply circuit.
7. The in-ear sound pressure measurement device according to claim 6, wherein when the charging interface is a data charging interface, the control circuit further comprises a data terminal, and the data terminal of the control circuit is electrically connected to the charging interface.
8. The in-ear sound pressure measurement device according to any one of claims 1 to 7, wherein the in-ear sound pressure measurement device further comprises a prompt circuit, and a controlled terminal of the prompt circuit is connected with a control terminal of the control circuit;
and the prompting circuit is used for prompting according to the prompting signal output by the control circuit.
9. An ear protector comprising two in-ear sound pressure measuring devices according to any of claims 1 to 7, a left in-ear sound pressure measuring device and a right in-ear sound pressure measuring device, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121476234.5U CN216132559U (en) | 2021-06-30 | 2021-06-30 | In-ear sound pressure measuring device and hearing protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121476234.5U CN216132559U (en) | 2021-06-30 | 2021-06-30 | In-ear sound pressure measuring device and hearing protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216132559U true CN216132559U (en) | 2022-03-25 |
Family
ID=80767090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121476234.5U Active CN216132559U (en) | 2021-06-30 | 2021-06-30 | In-ear sound pressure measuring device and hearing protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216132559U (en) |
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2021
- 2021-06-30 CN CN202121476234.5U patent/CN216132559U/en active Active
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