CN204231616U - A kind of self adaptation earphone - Google Patents
A kind of self adaptation earphone Download PDFInfo
- Publication number
- CN204231616U CN204231616U CN201420683661.4U CN201420683661U CN204231616U CN 204231616 U CN204231616 U CN 204231616U CN 201420683661 U CN201420683661 U CN 201420683661U CN 204231616 U CN204231616 U CN 204231616U
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Abstract
The utility model relates to a kind of self adaptation earphone.The utility model comprises Noise Acquisition processing module, audio frequency signal amplitude adjusting module and human-computer interaction module, Noise Acquisition processing module comprises Noise Acquisition module, amplification module and detection module, and audio frequency signal amplitude adjusting module comprises Audio Input Modules and audio frequency amplifies output module.The utility model is based on single-chip microcomputer MSP430F149, AD tetra-partial circuit in electret collection, amplification module, detection module and MSP430F149 sheet, can measure ambient noise automatically, and indicate noise grade by display screen LCD1602, environmentally earphone output volume can be automatically adjusted by noise through digital regulation resistance X9313, amplifier NE5532, single-chip microcomputer MSP430F149 tri-partial circuit, by display screen LCD1602, instruction level of sound volume, system manually can adjust the grade of volume with button.
Description
Technical field
The utility model relates to a kind of earphone, specifically a kind of self adaptation earphone.
Background technology
At present, our earphone, function is also more single, such as, when we with the electronic product such as smart mobile phone, panel computer listen to the music, see a film time, due to the interference of external environment, when needing increase, reduction volume, just keep away unavoidably in a manual fashion, remove the volume increase, the reduction key that adjust the electronic product such as smart mobile phone, panel computer, to reach the volume that oneself is expected, this allows people feel cumbersome under many circumstances, also has now some self adaptation earphones, but be all limited to the reason such as technology, cost, be difficult to promote.
Summary of the invention
The purpose of this utility model is to provide a kind of self adaptation earphone having promotional value, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of self adaptation earphone, comprise Noise Acquisition processing module, audio frequency signal amplitude adjusting module and human-computer interaction module, described Noise Acquisition processing module comprises Noise Acquisition module, amplification module and detection module, described audio frequency signal amplitude adjusting module comprises Audio Input Modules and audio frequency amplifies output module, and described human-computer interaction module comprises display screen LCD1602 and button.
Described Noise Acquisition module uses electret as transducer, the small-signal collected is amplified through amplification module, again through the detection of detection module, noise signal is become direct current signal from AC signal give AD conversion in single-chip microcomputer MSP430F149 sheet and carry out grade classification to noise signal, single-chip microcomputer MSP430F149 is according to the size of noise grade, the size of automatic adjustment digital regulation resistance X9313 resistance, audio input signal amplitude after by digital regulation resistance X9313 is reduced, amplify output module through audio frequency again and amplify output, described display screen LCD1602 is used for the grade of display noise environment, described button is used for manual adjustments volume.
As further program of the utility model: in described single-chip microcomputer MSP430F149 sheet, AD conversion adopts single channel multiple conversions pattern, does multiple conversions to selected passage, until AD closes translation function or ENC=0 in single-chip microcomputer MSP430F149 sheet.
As the utility model further scheme: described audio frequency amplifies output module and adopts double operational high-performance low-noise operational amplifier NE5532, exports driving force and audio frequency small signal bandwidth to improve.
Compared with prior art, the beneficial effects of the utility model are: the utility model is based on single-chip microcomputer MSP430F149, through electret collection, amplification module, AD tetra-partial circuit in detection module and MSP430F149 sheet, can measure ambient noise automatically, and by display screen LCD1602, instruction noise grade, through digital regulation resistance X9313, amplifier NE5532, single-chip microcomputer MSP430F149 tri-partial circuit environmentally can adjust earphone output volume by noise automatically, and by display screen LCD1602, instruction level of sound volume, system manually can adjust the grade of volume with button, and due to electronic component used all cheap, and circuit structure is simple, extremely be applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of self adaptation earphone.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of self adaptation earphone, comprise Noise Acquisition processing module, audio frequency signal amplitude adjusting module and human-computer interaction module, Noise Acquisition processing module comprises Noise Acquisition module, amplification module and detection module, audio frequency signal amplitude adjusting module comprises Audio Input Modules and audio frequency amplifies output module, and human-computer interaction module comprises display screen LCD1602 and button.
Noise Acquisition module uses electret as transducer, the small-signal collected is amplified through amplification module, again through the detection of detection module, noise signal is become direct current signal from AC signal give AD conversion in single-chip microcomputer MSP430F149 sheet and carry out grade classification to noise signal, single-chip microcomputer MSP430F149 is according to the size of noise grade, the size of automatic adjustment digital regulation resistance X9313 resistance, audio input signal amplitude after by digital regulation resistance X9313 is reduced, amplify output module through audio frequency again and amplify output, display screen LCD1602 is used for the grade of display noise environment, button is used for manual adjustments volume.
In single-chip microcomputer MSP430F149 sheet, AD conversion adopts single channel multiple conversions pattern, does multiple conversions to selected passage, until AD closes translation function or ENC=0 in single-chip microcomputer MSP430F149 sheet.
Audio frequency amplifies output module and adopts double operational high-performance low-noise operational amplifier NE5532, exports driving force and audio frequency small signal bandwidth to improve.
Operation principle of the present utility model is: the utility model is based on single-chip microcomputer MSP430F149, AD tetra-partial circuit in electret collection, amplification module, detection module and MSP430F149 sheet, can measure ambient noise automatically, and by display screen LCD1602, instruction noise grade, environmentally earphone output volume can be automatically adjusted by noise through digital regulation resistance X9313, amplifier NE5532, single-chip microcomputer MSP430F149 tri-partial circuit, and by display screen LCD1602, instruction level of sound volume, system manually can adjust the grade of volume with button.
Claims (3)
1. a self adaptation earphone, comprise Noise Acquisition processing module, audio frequency signal amplitude adjusting module and human-computer interaction module, it is characterized in that, described Noise Acquisition processing module comprises Noise Acquisition module, amplification module and detection module, described audio frequency signal amplitude adjusting module comprises Audio Input Modules and audio frequency amplifies output module, and described human-computer interaction module comprises display screen LCD1602 and button;
Described Noise Acquisition module uses electret as transducer, the small-signal collected is amplified through amplification module, again through the detection of detection module, noise signal is become direct current signal from AC signal give AD conversion in single-chip microcomputer MSP430F149 sheet and carry out grade classification to noise signal, single-chip microcomputer MSP430F149 is according to the size of noise grade, the size of automatic adjustment digital regulation resistance X9313 resistance, audio input signal amplitude after by digital regulation resistance X9313 is reduced, amplify output module through audio frequency again and amplify output, described display screen LCD1602 is used for the grade of display noise environment, described button is used for manual adjustments volume.
2. self adaptation earphone according to claim 1, it is characterized in that, in described single-chip microcomputer MSP430F149 sheet, AD conversion adopts single channel multiple conversions pattern, does multiple conversions to selected passage, until AD closes translation function or ENC=0 in single-chip microcomputer MSP430F149 sheet.
3. self adaptation earphone according to claim 1, is characterized in that, described audio frequency amplifies output module and adopts double operational high-performance low-noise operational amplifier NE5532, exports driving force and audio frequency small signal bandwidth to improve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683661.4U CN204231616U (en) | 2014-11-14 | 2014-11-14 | A kind of self adaptation earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683661.4U CN204231616U (en) | 2014-11-14 | 2014-11-14 | A kind of self adaptation earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204231616U true CN204231616U (en) | 2015-03-25 |
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ID=52929659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420683661.4U Expired - Fee Related CN204231616U (en) | 2014-11-14 | 2014-11-14 | A kind of self adaptation earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204231616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071605A (en) * | 2015-12-30 | 2017-08-18 | 杭州赛泫科技有限公司 | Intelligent 3D earphones |
-
2014
- 2014-11-14 CN CN201420683661.4U patent/CN204231616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071605A (en) * | 2015-12-30 | 2017-08-18 | 杭州赛泫科技有限公司 | Intelligent 3D earphones |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |