CN204948355U - Bluetooth earphone acoustic performance self-checking system - Google Patents
Bluetooth earphone acoustic performance self-checking system Download PDFInfo
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- CN204948355U CN204948355U CN201520619391.5U CN201520619391U CN204948355U CN 204948355 U CN204948355 U CN 204948355U CN 201520619391 U CN201520619391 U CN 201520619391U CN 204948355 U CN204948355 U CN 204948355U
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Abstract
The utility model discloses a kind of bluetooth earphone acoustic performance self-checking system, it comprises: bluetooth earphone and mobile phone body; Bluetooth earphone comprises selftest module, noise reduction module and amplifier selftest module and exports test signal and process feedback amplifying signal acquisition test result; Noise reduction module is electrically connected at selftest module, and noise reduction module receives and processes test signal and obtains feedback signal; Amplifier out is electrically connected at selftest module and noise reduction module, and input is electrically connected at noise reduction module, and amplifier accepts also processes feedback signal acquisition feedback amplifying signal, and amplifier output feedack amplifying signal is to selftest module; Mobile phone body is electrically connected at selftest module, and mobile phone body receives and shows the test result of selftest module transmission.
Description
Technical field
The utility model relates to a kind of acoustic performance self-checking system of bluetooth earphone, specifically, relates to a kind of acoustic performance self-checking system of reaction type active noise reduction bluetooth earphone.
Background technology
Along with current bluetooth earphone is more and more universal, user can be made a phone call by bluetooth earphone, time of listening to the music is also more and more longer, and please refer to Fig. 1, Fig. 1 is prior art bluetooth earphone internal structure schematic diagram.The bluetooth earphone inside of prior art comprises: an equalizer EQ, an active noise reduction unit ANC, adder 1123, digital signal processing unit DSP, a micro controller unit MCU, a memory management unit MMU, a Power Management Unit PMU, an input/output port IO, a radio-frequency module RF, analog to digital converter ADC, a digital to analog converter DAC, microphone 117 and an amplifier 113; Equalizer EQ and active noise reduction modules A NC is electrically connected at adder 1123, and adder 1123 is electrically connected at loud speaker 116; Digital signal processing unit DSP is electrically connected at micro controller unit MCU, digital signal processing unit DSP is electrically connected at equalizer EQ by output channel OUT, and digital signal processing unit DSP is also electrically connected at active noise reduction unit ANC by input channel IN; Micro controller unit MCU is electrically connected at memory management unit MMU, Power Management Unit PMU, input/output port IO and radio-frequency module RF; Memory management unit MMU is also electrically connected a memory 118; Radio-frequency module RF is electrically connected at APP module 121; Power Management Unit PMU is also electrically connected a battery 119; Digital to analog converter DAC is arranged on output channel OUT, and its input is electrically connected at digital signal processing unit DSP, and its output is electrically connected at equalizer EQ; Analog to digital converter ADC output is electrically connected at digital signal processing unit DSP; The output of amplifier 13 is electrically connected at active noise reduction unit ANC, and its input is electrically connected at microphone 117.
The course of work of existing bluetooth earphone is, digital signal processing unit DSP output audio signal is to equalizer EQ, this audio signal is exported by adder 1123 and loud speaker 116, microphone 117 receives the audio signal of loud speaker output and transfers to amplifier 13, amplifier 13 exports active noise reduction unit ANC to and carries out noise reduction after processing this audio signal, audio signal after noise reduction is exported by adder 1123 and loud speaker 116, the audio frequency of active noise reduction that what end user heard be through.Although this bluetooth earphone can protect the hearing of user; but user still can not detect the acoustic performance of the bluetooth earphone of oneself anywhere or anytime; user is caused likely also to use in continuation after the acoustic performance of bluetooth earphone goes wrong; in the course of time, the hearing of user is impacted.Therefore, develop the bluetooth earphone that a kind of bluetooth earphone acoustic performance self-checking system makes user can detect oneself at any time and become a urgent problem.
Utility model content
Technical problem to be solved by this invention is to provide a kind of bluetooth earphone acoustic performance self-checking system, wherein, comprises:
One bluetooth earphone, it comprises:
One selftest module, exports a test signal and processes a feedback amplifying signal and obtain a test result;
One noise reduction module, is electrically connected at described selftest module, and described noise reduction module receives and processes described test signal and obtains a feedback signal; And
One amplifier, its output is electrically connected at described selftest module and described noise reduction module, its input is electrically connected at described noise reduction module, described amplifier accepts also processes described feedback signal and obtains described feedback amplifying signal, and described amplifier exports described feedback amplifying signal to described selftest module; One mobile phone body, is electrically connected at described selftest module, and described mobile phone body receives and shows the described test result of described selftest module transmission.
Above-mentioned bluetooth earphone acoustic performance self-checking system, wherein, the connecting path of described selftest module and described noise reduction module is also provided with one first switch and a second switch that are connected in series, the output of described amplifier is electrically connected on the connecting path between described first switch and described second switch.
Above-mentioned bluetooth earphone acoustic performance self-checking system, wherein, described bluetooth earphone also comprises a loud speaker and a microphone, and described loud speaker is electrically connected at described noise reduction module, and described loud speaker receives and sends the described feedback signal of described noise reduction module transmission; Described microphone is electrically connected at described amplifier in, and described microphones the described feedback signal sending the transmission of described loud speaker are to described amplifier.
Above-mentioned bluetooth earphone acoustic performance self-checking system, wherein, described mobile phone body inside is provided with an APP module, and described APP module is electrically connected at described selftest module, and described APP module receives the described test result of described selftest module transmission.
Above-mentioned bluetooth earphone acoustic performance self-checking system, wherein, described APP module sends described test signal to described selftest module, and described selftest module transmits described feedback amplifying signal to described APP module, feeds back amplifying signal and obtain described test result described in described APP resume module.
Above-mentioned bluetooth earphone acoustic performance self-checking system, wherein, also comprise a high in the clouds data host, be electrically connected at described APP module, amplifying signal is fed back to described high in the clouds data host described in described APP module transfer, feed back amplifying signal described in the data host process of described high in the clouds and obtain described test result, described APP module receives the described test result of described high in the clouds data host transmission.
Above-mentioned bluetooth earphone acoustic performance self-checking system, wherein, described test signal is one of them of a swept-frequency signal, a multifrequency burst signal, a white noise signal and a powder noise cancellation signal or combines.
Above-mentioned bluetooth earphone acoustic performance self-checking system, wherein, also comprises a resistance, is electrically connected at described selftest module, described noise reduction module and described loud speaker.
The utility model is directed to its effect of prior art and is:
1) the bluetooth earphone acoustic performance self-checking system that proposes of the utility model is by the transfer of data between bluetooth earphone, mobile phone body and high in the clouds data host, and user can be detected the acoustic performance of bluetooth earphone voluntarily, thus the hearing of protection user;
2) on the basis of existing bluetooth earphone, increase the first switch and second switch change signal and flow to and utilize original Bluetooth function module simultaneously, realize user can detect the acoustic performance of bluetooth earphone voluntarily, not only cost-saving, also have the function of common bluetooth earphone concurrently.
Accompanying drawing explanation
Fig. 1 is existing bluetooth earphone internal structure schematic diagram;
Fig. 2 is the structural representation of the utility model bluetooth earphone acoustic performance self-checking system one embodiment;
Fig. 3 is the detection method flow chart of the utility model bluetooth earphone acoustic performance self-checking system;
Fig. 4 is the test result curve chart of the utility model bluetooth earphone acoustic performance self-checking system;
Fig. 5 is the structural representation that the utility model bluetooth earphone acoustic performance is in general mode;
Fig. 6 is the structural representation of another embodiment of the utility model bluetooth earphone acoustic performance self-checking system.
Wherein, Reference numeral:
11: bluetooth earphone
111: selftest module
DSP: digital signal processing unit
MCU: micro controller unit
MMU: memory management unit
PMU: Power Management Unit
IO: input/output port
RF: radio-frequency module
ADC: analog to digital converter
DAC: digital to analog converter
112: noise reduction module
EQ: equalizer
ANC: active noise reduction unit
1123: adder
113: amplifier
114: the first switches
115: second switch
116: loud speaker
117: microphone
118: memory
119: battery
12: mobile phone body
121:APP module
13: high in the clouds data host
14: resistance
OUT: output channel
IN: input channel
L1, L2: test result curve
S1: the intact interval of bluetooth earphone acoustic performance
Embodiment
Hereby about detailed content of the present utility model and technical descriptioon, be now described further with a preferred embodiment, but should be interpreted as the restriction of the utility model enforcement.
Please refer to Fig. 2, Fig. 2 is the structural representation of the utility model bluetooth earphone acoustic performance self-checking system.As shown in Figure 2, bluetooth earphone acoustic performance self-checking system of the present utility model comprises: bluetooth earphone 11 and a mobile phone body 12; Bluetooth earphone 11 also comprises selftest module 111, noise reduction module 112 and an amplifier 113; Selftest module 111 exports a test signal; Noise reduction module 112 is electrically connected at selftest module 111 by an output channel OUT and an input channel IN, and noise reduction module 112 is received by output channel OUT and processes test signal and obtains a feedback signal; The output of amplifier 113 is electrically connected at input channel IN, the input of amplifier 113 is electrically connected at noise reduction module 112, amplifier 113 receives and processes feedback signal and obtains a feedback amplifying signal, amplifier 113 output feedack amplifying signal is to selftest module 111, selftest module 111 processes feedback amplifying signal and obtains a test result, i.e. intact the or acoustic performance fault of acoustic performance; Mobile phone body 12 is electrically connected at selftest module 111, and mobile phone body 12 receives and shows test results.Wherein, input channel IN is also provided with one first switch 114 and the second switch 115 be connected in series, first switch 114 one end is electrically connected at noise reduction module 112 and the other end is electrically connected at the output of amplifier 113, and second switch 115 one end is electrically connected at the output of amplifier 113 and the other end is electrically connected at selftest module 111.Wherein, bluetooth earphone 11 also comprises loud speaker 116 and a microphone 117, and loud speaker 116 is electrically connected at noise reduction module 112, and loud speaker 116 receives and sends feedback signal; Microphone 117 is electrically connected at the input of amplifier 113, and microphone 117 receives and sends feedback signal to amplifier 113.
Wherein, noise reduction module 112 comprises: an equalizer EQ, an active noise reduction unit ANC and an adder 1123, equalizer EQ and active noise reduction modules A NC is electrically connected at adder 1123, and adder 1123 is electrically connected at loud speaker 116.Selftest module 111 comprises: a digital signal processing unit DSP, a micro controller unit MCU, a memory management unit MMU, a Power Management Unit PMU, an input/output port IO, a radio-frequency module RF; Digital signal processing unit DSP is electrically connected at micro controller unit MCU, digital signal processing unit DSP is electrically connected at equalizer EQ by output channel OUT, digital signal processing unit DSP is also electrically connected at active noise reduction unit ANC by input channel IN, digital signal processing unit DSP transmits test signal to equalizer EQ by output channel OUT, and digital signal processing unit DSP also receives feedback amplifying signal by input channel IN and transfers to micro controller unit MCU; Micro controller unit MCU is electrically connected at memory management unit MMU, Power Management Unit PMU, input/output port IO, radio-frequency module RF, noise reduction module 112 and second switch 115, micro controller unit MCU process feedback amplifying signal obtains test result and test result curve, and micro controller unit MCU is by radio-frequency module RF test transmission result and test result curve to APP module 121, and micro controller unit MCU also transmits feedback amplifying signal to APP module 121 by radio-frequency module RF simultaneously; Memory management unit MMU is also electrically connected a memory 118; Radio-frequency module RF is electrically connected at APP module 121; Power Management Unit PMU is also electrically connected a battery 119.Selftest module 111 also comprises an an analog to digital converter ADC and digital to analog converter DAC; Digital to analog converter DAC is arranged on output channel OUT, and its input is electrically connected at digital signal processing unit DSP, and its output is electrically connected at equalizer EQ; Analog to digital converter ADC is arranged on input channel IN, and its input is electrically connected at second switch 115, and its output is electrically connected at digital signal processing unit DSP.
Further, mobile phone body 12 inside is provided with APP module 121, an APP module 121 and is electrically connected at selftest module 111, APP module 121 and sends test massage to selftest module 111 and receive test result.But the function of APP module 121 is not limited thereto, when user requires high to measuring accuracy, feedback amplifying signal is transmitted to APP module 121 by selftest module 11, APP module 121 processes feedback amplifying signal and obtains test result, the i.e. intact or acoustic performance fault of acoustic performance, then demonstrated by mobile phone body 12.
Further, bluetooth earphone acoustic performance self-checking system of the present utility model also comprises a high in the clouds data host 13, be electrically connected at APP module 121, when user requires higher to measuring accuracy, receive feedback amplifying signal by APP module 121 and transmit feedback amplifying signal to high in the clouds data host 13, high in the clouds data host 13 processes feedback amplifying signal and obtains test result, the i.e. intact or acoustic performance fault of acoustic performance, and test result is sent to APP module 121 and is demonstrated by mobile phone body 12 again.
Separately, high in the clouds data host 13 can also store bluetooth earphone and to dispatch from the factory the data of test and the historical test data of user, and be analyzed by bluetooth earphone 11 the is dispatched from the factory data of test and the historical test data of user and this test data, obtain this test result, the i.e. intact or acoustic performance fault of acoustic performance, to meet the requirement of client to measuring accuracy.
In other embodiments, selftest module 111 or APP module 121 or described high in the clouds data host 13 can also obtain a test result curve according to described feedback amplifying signal, described in described test result curve negotiating, mobile phone body demonstrates, when test result curve is positioned at a specification frame, determine that bluetooth earphone 11 acoustic performance is intact; Exceed in specification frame when test result curve is all or part of, judge bluetooth earphone 11 acoustic performance fault.
In the present embodiment, test signal is a swept-frequency signal, but the utility model is not as limit, and test signal also can be one of them of a multifrequency burst signal or a white noise signal or a powder noise cancellation signal or combines in other embodiments.
Please refer to Fig. 3, Fig. 3 is the detection method flow chart of the utility model bluetooth earphone acoustic performance self-checking system.Below in conjunction with Fig. 2 and Fig. 3, illustrate the course of work of the utility model bluetooth earphone acoustic performance self-checking system in conjunction with an embodiment, but restriction of the present utility model of not opposing.
Detection method of the present utility model comprises:
Self-inspection preparation process S100: open mobile phone body 12 and bluetooth earphone 11, and open APP module 121 and connect bluetooth earphone 11;
Setting Auto-Sensing Mode step S101: bluetooth earphone 11 is set to Auto-Sensing Mode, namely disconnects the first switch 114 and closed second switch 115;
Obtain feedback signal step S102: launch the selftest module 111 of a test signal to bluetooth earphone 11 by APP module 121, selftest module 111 is by output channel OUT transmitted test signal to noise reduction module 112, and noise reduction module 112 processes test signal and obtains feedback signal and transfer to loud speaker 116; Microphone 117 receiving feedback signals while of loud speaker 116 output feedback signal also transfers to amplifier 113;
Obtain feedback amplifying signal step S103: amplifier 113 receives and processes feedback signal and obtains a feedback amplifying signal; Feedback amplifying signal is by the second switch 115 on input channel IN and transfer to selftest module 111;
Obtain test result step S104: inspection module 111 receives and processes feedback amplifying signal and obtains test result and test result curve;
The step S105:APP module 121 that shows test results receives test result and test result curve, is demonstrated by mobile phone body 12.
Wherein, when the measuring accuracy that user requires is slightly high, feedback amplifying signal can be transferred to APP module 121 by selftest module 111, processes feedback amplifying signal obtain test result and test result curve and demonstrated by mobile phone body 12 by APP module 121; When the measuring accuracy that user requires is higher, feedback amplifying signal is transferred to high in the clouds data host 13 by APP module 121, can be analyzed according to dispatch from the factory data of test and the historical test data of user and this test data of bluetooth earphone 11 by high in the clouds data host 13, process feedback amplifying signal obtains this test result and test result curve, and by this test result and test result curve transmission to APP module 121, demonstrated by mobile phone body 12.
Please refer to Fig. 4, Fig. 4 is the test result curve chart of the utility model bluetooth earphone acoustic performance self-checking system.As shown in Figure 4, S1 is the intact interval of bluetooth earphone acoustic performance, and wherein test result curve L1 exceeds the intact interval S1 of bluetooth earphone acoustic performance, then judge bluetooth earphone sound fault; Wherein test result curve L2 does not exceed the intact interval S1 of bluetooth earphone acoustic performance, then judge that bluetooth earphone sound is intact.
Please refer to Fig. 5, Fig. 5 is the structural representation that the utility model bluetooth earphone acoustic performance is in general mode.When closed first switch 114 and when disconnecting second switch 115, bluetooth earphone 11 is in general mode, the feedback amplifying signal that amplifier 13 exports is transferred to noise reduction module by the first switch 114 on input channel IN, realizes the decrease of noise functions of bluetooth earphone 11.
Please refer to Fig. 6, Fig. 6 is the structural representation of another embodiment of the utility model bluetooth earphone acoustic performance self-checking system.The difference of Fig. 5 and Fig. 1 is, bluetooth earphone acoustic performance self-checking system of the present utility model also comprises a resistance 14, is electrically connected at selftest module 111, noise reduction module 112 and loud speaker 116.Under self test mode, by the audio chip analog input mouth measuring resistance 14 both end voltage U of bluetooth earphone 11 with calculating current I (I=U/R), R is the resistance of resistance 14, thus selftest module 111 can obtain the electrical impedance characteristics curve of loud speaker 116, this electrical impedance characteristics curve negotiating mobile phone body 12 demonstrates, thus whether obviously depart from primitive curve, in order to the acoustic performance of auxiliary judgment bluetooth earphone 11 further by observation electrical impedance curve.Wherein being less than 1/10th of loud speaker 116 impedance with the impedance of resistance 14 is a preferably execution mode, but the utility model is not as limit.
Above are only preferred embodiment of the present utility model; not be used for limit the utility model implement scope; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (8)
1. a bluetooth earphone acoustic performance self-checking system, is characterized in that, comprises:
One bluetooth earphone, it comprises:
One selftest module, exports a test signal and processes a feedback amplifying signal and obtain a test result;
One noise reduction module, is electrically connected at described selftest module, and described noise reduction module receives and processes described test signal and obtains a feedback signal; And
One amplifier, its output is electrically connected at described selftest module and described noise reduction module, its input is electrically connected at described noise reduction module, described amplifier accepts also processes described feedback signal and obtains described feedback amplifying signal, and described amplifier exports described feedback amplifying signal to described selftest module;
One mobile phone body, is electrically connected at described selftest module, and described mobile phone body receives and shows the described test result of described selftest module transmission.
2. bluetooth earphone acoustic performance self-checking system as claimed in claim 1, it is characterized in that, the connecting path of described selftest module and described noise reduction module is also provided with one first switch and a second switch that are connected in series, the output of described amplifier is electrically connected on the connecting path between described first switch and described second switch.
3. bluetooth earphone acoustic performance self-checking system as claimed in claim 2, it is characterized in that, described bluetooth earphone also comprises a loud speaker and a microphone, and described loud speaker is electrically connected at described noise reduction module, and described loud speaker receives and sends the described feedback signal of described noise reduction module transmission; Described microphone is electrically connected at described amplifier in, and described microphones the described feedback signal sending the transmission of described loud speaker are to described amplifier.
4. bluetooth earphone acoustic performance self-checking system as claimed in claim 3, it is characterized in that, described mobile phone body inside is provided with an APP module, and described APP module is electrically connected at described selftest module, and described APP module receives the described test result of described selftest module transmission.
5. bluetooth earphone acoustic performance self-checking system as claimed in claim 4, it is characterized in that, described APP module sends described test signal to described selftest module, described selftest module transmits described feedback amplifying signal to described APP module, feeds back amplifying signal and obtain described test result described in described APP resume module.
6. bluetooth earphone acoustic performance self-checking system as claimed in claim 5, it is characterized in that, also comprise a high in the clouds data host, be electrically connected at described APP module, amplifying signal is fed back to described high in the clouds data host described in described APP module transfer, feed back amplifying signal described in the data host process of described high in the clouds and obtain described test result, described APP module receives the described test result of described high in the clouds data host transmission.
7. bluetooth earphone acoustic performance self-checking system as claimed in claim 6, is characterized in that, described test signal is one of them of a swept-frequency signal, a multifrequency burst signal, a white noise signal and a powder noise cancellation signal or combines.
8. bluetooth earphone acoustic performance self-checking system as claimed in claim 7, is characterized in that, also comprise a resistance, be electrically connected at described selftest module, described noise reduction module and described loud speaker.
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| CN201520619391.5U CN204948355U (en) | 2015-08-17 | 2015-08-17 | Bluetooth earphone acoustic performance self-checking system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401218A (en) * | 2018-03-01 | 2018-08-14 | 会听声学科技（北京）有限公司 | Active noise reduction earphone method for diagnosing faults |
| CN110850764A (en) * | 2019-11-04 | 2020-02-28 | 南宁师范大学 | Intelligent refined management platform for marine ranching |
| CN112261566A (en) * | 2020-09-15 | 2021-01-22 | 杭州兆华电子有限公司 | AI intelligent glasses audio test method based on cloud service |
| CN112566004A (en) * | 2020-12-25 | 2021-03-26 | 百度在线网络技术（北京）有限公司 | Wireless earphone, working state monitoring method and device and storage medium |
-
2015
- 2015-08-17 CN CN201520619391.5U patent/CN204948355U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401218A (en) * | 2018-03-01 | 2018-08-14 | 会听声学科技（北京）有限公司 | Active noise reduction earphone method for diagnosing faults |
| CN108401218B (en) * | 2018-03-01 | 2020-10-30 | 会听声学科技（北京）有限公司 | Fault diagnosis method for active noise reduction earphone |
| CN110850764A (en) * | 2019-11-04 | 2020-02-28 | 南宁师范大学 | Intelligent refined management platform for marine ranching |
| CN112261566A (en) * | 2020-09-15 | 2021-01-22 | 杭州兆华电子有限公司 | AI intelligent glasses audio test method based on cloud service |
| CN112566004A (en) * | 2020-12-25 | 2021-03-26 | 百度在线网络技术（北京）有限公司 | Wireless earphone, working state monitoring method and device and storage medium |
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Address after: Floor 4, building 1, No. 5, changnanyuan Road, Changnan Industrial Park, qingyunbu District, Nanchang City, Jiangxi Province Co-patentee after: FENGFAN (SUZHOU) AUDIO TECHNOLOGY Co.,Ltd. Patentee after: Jiangxi Feier Technology Co., Ltd Address before: 100016, room 7598, building 7, South 1 village, Northeast Village, Beijing, Haidian District Co-patentee before: FENGFAN (SUZHOU) AUDIO TECHNOLOGY Co.,Ltd. Patentee before: FENGFAN (BEIJING) TECHNOLOGY Co.,Ltd. |
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