CN101141118A - Acoustics volume automatic controller along with environmental noise size for automobile - Google Patents
Acoustics volume automatic controller along with environmental noise size for automobile Download PDFInfo
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- CN101141118A CN101141118A CN 200710133949 CN200710133949A CN101141118A CN 101141118 A CN101141118 A CN 101141118A CN 200710133949 CN200710133949 CN 200710133949 CN 200710133949 A CN200710133949 A CN 200710133949A CN 101141118 A CN101141118 A CN 101141118A
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Abstract
The invention discloses an auto regulator that can regulates the volume of the speaker according to the noise of the environment on board and consists of a peak value radiodetector that consists of a microphone, a cophase calculation amplifier, a diode and a RC, a potentiometer and an opposite phase amplifier. The microphone collects the noise of the environment and transform the noise signals into current signals and sends the signals to the cophase amplifier, the signals that are amplified by the cophase amplifier becomes a DC signal that can indicate the noise of the background though the diode and the radio detector that consists of RC, the DC signal is regulated by the potentiometer and is sent to the opposite phase amplifier and is sent to the automobile acoustics volume increasing electrode by the opposite phase. The invention can automatically adjust the volume of the acoustics according to different noise to prevent frequent adjustment of the volume.
Description
Technical field
The present invention relates to a kind of automobile audio apparatus for automatically regulating sound volume, specifically a kind of acoustics volume automatic controller along with environmental noise size for automobile.
Background technology
Along with developing rapidly of automobile industry, domestic automobile uses more and more universal, and automobile audio is an important component part in the vehicle electronics.Listen sound equipment in car or motor bus, the ambient noise size variation is frequent, and its major influence factors has: whether the car engine start, be to run at high speed or low speed driving or idling is waited for red light, vehicle window is opened or close etc.Because the ambient noise size has a long way to go, when environmental background noise is high, otherwise people often wish that the volume of sound equipment is higher relatively then anti-.Existing automobile audio is manually to regulate the acoustics volume size by human pilot continually according to the environmental background noise situation, feels inconvenient and influences traffic safety.The device that does not also have automatic regulating volume at present in the automobile audio.
Three, summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of acoustics volume automatic controller along with environmental noise size for automobile.This automatic regulator can realize that in the automobile audio use, its volume automatically adjusts with the ambient noise size, need not human pilot and manually regulates the acoustics volume size continually, makes that the personnel of driving are comfortable in motion, convenient, safety
Purpose of the present invention is achieved through the following technical solutions:
A kind of acoustics volume automatic controller along with environmental noise size for automobile is characterized in that: it comprises peak detector, potentiometer and the inverting amplifier that microphone, homophase operational amplifier, diode and RC form; Microphone is gathered ambient noise and is changed noise signal into current signal and sends the homophase operational amplifier to, signal after the homophase operational amplifier amplifies becomes a direct current signal that can reflect the background noise size behind the peak detector of diode and RC composition, this direct current signal is sent into inverting amplifier after potentiometer is regulated system, and is sent to automobile audio volume amplifying stage by inverting amplifier.
Among the present invention, described automobile audio controller is regulated broadcast sound volume automatically according to the size of external environment noise.
The present invention is provided with the switch that is used for whether needing to realize controlling automatically volume behind inverting amplifier, automatic regulator is started working behind the switch closure.
The volume that the present invention can regulate automobile audio automatically changes with the size of noise background, and noise background is big, and it is big that volume becomes, and noise background is little, and volume diminishes.Behind the switch closure, microphone collects ambient noise, change noise signal into current signal, this current signal amplifies through the homophase operational amplifier, signal after the amplification is through diode and RC, carry out obtaining a direct current signal that can reflect the background noise size behind the peak detection, send into inverting amplifier, the audio frequency amplifying stage negative feedback of being sent to automobile audio again controls the multiplication factor of this grade automatically.After switch disconnected, adjuster was inoperative.Human pilot can whether need freely select self-regulating function according to self needs.
Compared with prior art, advantage of the present invention is: the volume that 1, can regulate automobile audio according to the size of background noise automatically, 2, the volume of automobile-used sound equipment automatically adjusts with the ambient noise size, replace manual adjustments, avoid human pilot manually to regulate the acoustics volume size continually, make that the personnel of driving are comfortable in motion, convenient, safety.
The present invention is a kind of convenience, acoustics volume automatic controller along with environmental noise size for automobile economic, practical and simple to operate.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Description of reference numerals
1-microphone 2-homophase operational amplifier
The peak detector 4-potentiometer that 3-diode and RC form
5-inverting amplifier 6-switch
Embodiment
Below in conjunction with accompanying drawing structure of the present invention is described in further detail.
See accompanying drawing, a kind of acoustics volume automatic controller along with environmental noise size for automobile of the present invention, microphone 1 is gathered ambient noise and is changed noise signal into current signal and sends homophase operational amplifier 2 to, signal after homophase operational amplifier 2 amplifies becomes a direct current signal that can reflect the background noise size behind the peak detector 3 of diode and RC composition, this direct current signal is sent into inverting amplifier 5 after potentiometer 4 modulation, and is sent to automobile audio volume amplifying stage by inverting amplifier 5.The automobile audio controller is regulated broadcast sound volume automatically according to the size of external environment noise, and noise background is big, and it is big that volume becomes, and noise background is little, and volume diminishes.
When cruising, the personnel of driving can determine whether to need to adopt automatic regulator as required.Thereby behind inverting amplifier 5, being provided with the switch 6 that is used for whether needing to realize controlling automatically volume, switch 6 closed back automatic regulators are started working.Certainly, switch 6 also can be arranged on other position.
In the vehicle ' process, the volume of automobile is subjected to the external environment The noise.At this moment, drive after switch 6 closures of personnel with adjuster, microphone 1 collects the external environment noise, and changes noise signal into current signal, and this moment, the current signal amplitude was little, and power is also little, needs to amplify, and just can play control action.Therefore, this current signal amplifies through homophase operational amplifier 2, and the signal after the amplification carries out peak detection through diode and RC3, obtains a direct current signal that can reflect the background noise size through behind the peak detection, send into inverting amplifier 5, be sent to the acoustics volume amplifying stage of automobile audio again, control the multiplication factor of this grade automatically, realize regulating broadcast sound volume automatically according to the size of external environment noise, noise background is big, it is big that volume becomes, and noise background is little, and volume diminishes.
Switch 6 disconnects, and adjuster is inoperative, and the volume control of sound equipment returns to original state.
Claims (3)
1. acoustics volume automatic controller along with environmental noise size for automobile is characterized in that: it comprises peak detector (3), potentiometer (4) and the inverting amplifier (5) that microphone (1), homophase operational amplifier (2), diode and RC form; Microphone (1) is gathered ambient noise and is changed noise signal into amplifier (2) that current signal sends homophase to, signal after homophase operational amplifier (2) amplifies becomes the direct current signal of reflection background noise size behind diode and RC composition peak detector (3), this direct current signal is sent into inverting amplifier (5) after potentiometer (4) is regulated, and is sent to automobile audio volume amplifying stage by inverting amplifier (5).
2. acoustics volume automatic controller along with environmental noise size for automobile according to claim 1 is characterized in that: described automobile audio controller is regulated broadcast sound volume automatically according to the size of external environment noise.
3. acoustics volume automatic controller along with environmental noise size for automobile according to claim 1 is characterized in that: be provided with the switch (6) that is used for whether needing to realize controlling automatically volume behind inverting amplifier (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710133949 CN101141118A (en) | 2007-10-25 | 2007-10-25 | Acoustics volume automatic controller along with environmental noise size for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710133949 CN101141118A (en) | 2007-10-25 | 2007-10-25 | Acoustics volume automatic controller along with environmental noise size for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101141118A true CN101141118A (en) | 2008-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710133949 Pending CN101141118A (en) | 2007-10-25 | 2007-10-25 | Acoustics volume automatic controller along with environmental noise size for automobile |
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| Country | Link |
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| CN (1) | CN101141118A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035488A (en) * | 2009-10-02 | 2011-04-27 | 罗伯特·博世有限公司 | Method and device for controlling sound level of audio device in vehicles |
| CN103220600A (en) * | 2013-04-08 | 2013-07-24 | 无锡市崇安区科技创业服务中心 | Device for automatically adjusting volume of sounding box |
| CN103686524A (en) * | 2012-09-19 | 2014-03-26 | 深圳市得辉达科技有限公司 | Environmental noise induction type intelligent sound box |
| CN104900174A (en) * | 2015-06-17 | 2015-09-09 | 无锡市崇安区科技创业服务中心 | Automatic tourist attraction explanation device |
| CN106374864A (en) * | 2016-09-29 | 2017-02-01 | 深圳市茁壮网络股份有限公司 | Volume adjustment method and device |
| CN108076108A (en) * | 2016-11-17 | 2018-05-25 | 印佳斌 | A kind of dynamic updates inter-vehicle information system |
| CN109842839A (en) * | 2019-01-29 | 2019-06-04 | 惠州市华智航科技有限公司 | The loudness compensation method such as a kind of |
| CN111179652A (en) * | 2020-01-15 | 2020-05-19 | 牡丹江医学院 | A device for psychology teaching experiment |
| CN112017636A (en) * | 2020-08-27 | 2020-12-01 | 大众问问(北京)信息科技有限公司 | Vehicle-based user pronunciation simulation method, system, device and storage medium |
-
2007
- 2007-10-25 CN CN 200710133949 patent/CN101141118A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035488A (en) * | 2009-10-02 | 2011-04-27 | 罗伯特·博世有限公司 | Method and device for controlling sound level of audio device in vehicles |
| CN103686524A (en) * | 2012-09-19 | 2014-03-26 | 深圳市得辉达科技有限公司 | Environmental noise induction type intelligent sound box |
| CN103220600A (en) * | 2013-04-08 | 2013-07-24 | 无锡市崇安区科技创业服务中心 | Device for automatically adjusting volume of sounding box |
| CN104900174A (en) * | 2015-06-17 | 2015-09-09 | 无锡市崇安区科技创业服务中心 | Automatic tourist attraction explanation device |
| CN106374864A (en) * | 2016-09-29 | 2017-02-01 | 深圳市茁壮网络股份有限公司 | Volume adjustment method and device |
| CN106374864B (en) * | 2016-09-29 | 2019-05-24 | 深圳市茁壮网络股份有限公司 | A kind of volume adjusting method and device |
| CN108076108A (en) * | 2016-11-17 | 2018-05-25 | 印佳斌 | A kind of dynamic updates inter-vehicle information system |
| CN109842839A (en) * | 2019-01-29 | 2019-06-04 | 惠州市华智航科技有限公司 | The loudness compensation method such as a kind of |
| CN111179652A (en) * | 2020-01-15 | 2020-05-19 | 牡丹江医学院 | A device for psychology teaching experiment |
| CN112017636A (en) * | 2020-08-27 | 2020-12-01 | 大众问问(北京)信息科技有限公司 | Vehicle-based user pronunciation simulation method, system, device and storage medium |
| CN112017636B (en) * | 2020-08-27 | 2024-02-23 | 大众问问(北京)信息科技有限公司 | User pronunciation simulation method, system, equipment and storage medium based on vehicle |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080312 |