CN105744441A - Self-adaptive volume adjustment loudspeaker box based on distance sensing - Google Patents
Self-adaptive volume adjustment loudspeaker box based on distance sensing Download PDFInfo
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- CN105744441A CN105744441A CN201610191298.8A CN201610191298A CN105744441A CN 105744441 A CN105744441 A CN 105744441A CN 201610191298 A CN201610191298 A CN 201610191298A CN 105744441 A CN105744441 A CN 105744441A
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- audio amplifier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2203/00—Details of circuits for transducers, loudspeakers or microphones covered by H04R3/00 but not provided for in any of its subgroups
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a self-adaptive volume adjustment loudspeaker box based on distance sensing. The loudspeaker box comprises an interface module, a control module, an infrared sensor, an audio signal processing module, a sound collection module, a sound adjustment module and a loudspeaker module. The distance between a user and the loudspeaker box is measured by the infrared sensor. Through combination of a preset distance and volume comparison table, a target volume of the loudspeaker box is obtained. Moreover, the sound generated by the loudspeaker box is collected by the sound collection module arranged on the loudspeaker box. The magnitude of the play volume of the loudspeaker module is adjusted through the sound adjustment module. The magnitude of the sound generated by the loudspeaker box is the same to that of the target volume. The loudspeaker box is simple in structure and convenient in use. The volume of the loudspeaker box is automatically adjusted according to the distance between the user and the loudspeaker box, and therefore, the user experience is high.
Description
Technical field
The present invention relates to audio amplifier field, particularly relate to the audio amplifier of a kind of self-adapting volume control answered based on distance perspective.
Background technology
Audio amplifier is the terminal of whole sound system, and its effect is that audio frequency electric energy is converted to corresponding acoustic energy, and it is radiated space.It is the extremely important ingredient of sound system, because it is responsible for and the signal of telecommunication is transformed into acoustical signal directly listens to so mission critical for the ear of people, it is wanted directly and the audition of people is come into contacts with, and the audition of people is very sensitive, and the tone color of complex sound had very strong resolving ability.Owing to the subjective feeling of sound is evaluated the most important standard of a sound system tonequality quality by human ear just, accordingly, it is believed that the playing quality of a sound system is play pivotal role by the performance height of audio amplifier.
Development with science and technology, acoustic product gets over miniature portable, and mini audio amplifier arises at the historic moment, and provides microphone for various portable type electronic products, allow user break away from bothering and friend can be allowed to share the effect of sound together with earphone, and it can be plugged again earplug and be used as MP3 use.And development over time, the mini audio amplifier form of various brands increasingly possesses variation, small and exquisite attractive in appearance becomes the feature that mini audio amplifier is maximum.Mini audio amplifier generally all can broadcast song outside plug-in card, it is also possible to broadcast listening, also has some other miscellaneous function, for instance illumination, exhales and helps, and hearing aid etc., these are a trend of mini function of loudspeaker box development in pluralism.While mini audio amplifier develops, along with the increase of various brands, in succession occur in that rambler, do not leave without seeing each other, tens mini audio amplifier brands such as holy precious, neck elegant (DGSHOW), in the near future the development of mini audio amplifier can more flame enrichment, market can go from strength to strength.
Infrared technology has been obtained for extensive use in velocity-measuring system, and many products have used infrared technology to be capable of the research such as vehicle speed measuring, detection.During infrared ray application speed fields of measurement, the most formidable is disturbed containing ultrared light source by strong sunlight etc. is multiple.The interference of external light source becomes infrared ray and is applied to the bottleneck in field.For this problem, a kind of infrared ray tachogenerator design is proposed here, this design can provide technical support for multimetering instantaneous velocity and stage acceleration, can be applicable to need in the commercial production such as the speed weighing of Velocity Measurement on Highway and production line blanking the link of measuring speed.
The driving of infrared opposite-radiation pipe is divided into level-type and two kinds of type of drive of impulse type.Divergence type photoelectric sensor is become by infrared opposite-radiation pipe array group.The innovative point of this sensor is in that to resist the high light interference in the external world.Containing the infrared ray that infrared receiver tube produces interference in sunlight, infrared receiver diode can be turned on by this light, makes system produce erroneous judgement, even results in whole system paralysis.The advantage of this sensor is in that to arrange multipoint acquisition, and spacing and the array quantity of correlation pipe array can be chosen according to demand.
Infrared technique is it is known that this technology is widely used in fields such as modern science and technology, science and techniques of defence and industrial or agricultural science and technology.Infra-red sensing system is by the measurement system that infrared ray is medium, can be divided into five classes according to function: (1) radiometer, for radiation and spectral measurement；(2) search and the system of tracking, be used for searching for and following the tracks of infrared target, it is determined that it is also moved into line trace by its locus；(3) thermal imaging system, can produce the distributed image of whole Target Infrared Radiation；(4) infrared distance measurement and communication system；(5) hybrid system, refers to the combination of two or more in above sorts of systems.
Infrared sensor is divided into as photon detector (based on photoelectric effect) and thermal detector (based on heat effect) according to detection mechanism.
The broadcast sound volume of existing audio amplifier it is generally required to manual adjustments, user do things need to walk up and down time, regulate volume very inconvenient.
Summary of the invention
The technical problem to be solved is for defect involved in background technology, it is provided that the audio amplifier of a kind of self-adapting volume control answered based on distance perspective.
The present invention solves above-mentioned technical problem by the following technical solutions:
Based on the audio amplifier of the self-adapting volume control that distance perspective is answered, comprise interface module, control module, infrared sensor, audio-frequency signal processing module, sound acquisition module, sound adjustment module and loudspeaker module；
Described interface module is connected with loudspeaker module by audio-frequency signal processing module；
Described control module is connected with infrared sensor, sound acquisition module, sound adjustment module respectively, and described sound adjustment module is connected with loudspeaker module；
Described interface module is for receiving the audio signal of outside, and the audio signal received is passed to described audio-frequency signal processing module；
Described audio-frequency signal processing module is for being decoded the audio signal received processing, and decoded audio signal is delivered to loudspeaker module；
Described loudspeaker module is for playing the audio signal received；
Described sound adjustment module is for regulating the size of loudspeaker module broadcast sound volume；
Described sound acquisition module is for gathering the sound that audio amplifier sends, and passes it to described control module；
Described infrared sensor is for measuring the distance of human body distance audio amplifier, and passes it to control module；
Described control module comprises volume computing unit and volume adjustment unit；
Described volume computing unit for calculating the target volume of audio amplifier according to the human body distance distance of audio amplifier and distance set in advance and volume synopsis, and passes it to described volume adjustment unit；
Described volume adjustment unit regulates the size of loudspeaker module broadcast sound volume for controlling sound adjustment module according to the target volume received so that sound acquisition module collects the volume of the sound that audio amplifier sends equal to described target volume.
As the further prioritization scheme of audio amplifier of the self-adapting volume control that the present invention answers based on distance perspective, the processor of described control module adopts AVR series monolithic.
As the further prioritization scheme of audio amplifier of the self-adapting volume control that the present invention answers based on distance perspective, the processor of described control module adopts Atmega168PA single-chip microcomputer.
As the further prioritization scheme of audio amplifier of the self-adapting volume control that the present invention answers based on distance perspective, described sound acquisition module adopts mike.
As the further prioritization scheme of audio amplifier of the self-adapting volume control that the present invention answers based on distance perspective, described mike adopts pin-hole type mike.
The present invention adopts above technical scheme compared with prior art, has following technical effect that
1. simple in construction, easy to use；
2. regulate the volume of audio amplifier automatically according to the distance segment of user distance audio amplifier, user experience is good.
Detailed description of the invention
Below technical scheme is described in further detail:
The invention discloses the audio amplifier of a kind of self-adapting volume control answered based on distance perspective, comprise interface module, control module, infrared sensor, audio-frequency signal processing module, sound acquisition module, sound adjustment module and loudspeaker module；
Described interface module is connected with loudspeaker module by audio-frequency signal processing module；
Described control module is connected with infrared sensor, sound acquisition module, sound adjustment module respectively, and described sound adjustment module is connected with loudspeaker module；
Described interface module is for receiving the audio signal of outside, and the audio signal received is passed to described audio-frequency signal processing module；
Described audio-frequency signal processing module is for being decoded the audio signal received processing, and decoded audio signal is delivered to loudspeaker module；
Described loudspeaker module is for playing the audio signal received；
Described sound adjustment module is for regulating the size of loudspeaker module broadcast sound volume；
Described sound acquisition module is for gathering the sound that audio amplifier sends, and passes it to described control module；
Described infrared sensor is for measuring the distance of human body distance audio amplifier, and passes it to control module；
Described control module comprises volume computing unit and volume adjustment unit；
Described volume computing unit for calculating the target volume of audio amplifier according to the human body distance distance of audio amplifier and distance set in advance and volume synopsis, and passes it to described volume adjustment unit；
Described volume adjustment unit regulates the size of loudspeaker module broadcast sound volume for controlling sound adjustment module according to the target volume received so that sound acquisition module collects the volume of the sound that audio amplifier sends equal to described target volume.
The processor of described control module adopts AVR series monolithic, preferential employing Atmega168PA single-chip microcomputer.
Described sound acquisition module adopts mike, preferential employing pin-hole type mike.
Those skilled in the art of the present technique it is understood that unless otherwise defined, all terms used herein (include technical term and scientific terminology) and have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Should also be understood that in such as general dictionary, those terms of definition should be understood that have the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not explain by idealization or excessively formal implication.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; it is not limited to the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (5)
1. the audio amplifier of the self-adapting volume control answered based on distance perspective, it is characterised in that comprise interface module, control module, infrared sensor, audio-frequency signal processing module, sound acquisition module, sound adjustment module and loudspeaker module；
Described interface module is connected with loudspeaker module by audio-frequency signal processing module；
Described control module is connected with infrared sensor, sound acquisition module, sound adjustment module respectively, and described sound adjustment module is connected with loudspeaker module；
Described interface module is for receiving the audio signal of outside, and the audio signal received is passed to described audio-frequency signal processing module；
Described audio-frequency signal processing module is for being decoded the audio signal received processing, and decoded audio signal is delivered to loudspeaker module；
Described loudspeaker module is for playing the audio signal received；
Described sound adjustment module is for regulating the size of loudspeaker module broadcast sound volume；
Described sound acquisition module is for gathering the sound that audio amplifier sends, and passes it to described control module；
Described infrared sensor is for measuring the distance of human body distance audio amplifier, and passes it to control module；
Described control module comprises volume computing unit and volume adjustment unit；
Described volume computing unit for calculating the target volume of audio amplifier according to the human body distance distance of audio amplifier and distance set in advance and volume synopsis, and passes it to described volume adjustment unit；
Described volume adjustment unit regulates the size of loudspeaker module broadcast sound volume for controlling sound adjustment module according to the target volume received so that sound acquisition module collects the volume of the sound that audio amplifier sends equal to described target volume.
2. the audio amplifier of the self-adapting volume control answered based on distance perspective according to claim 1, it is characterised in that the processor of described control module adopts AVR series monolithic.
3. the audio amplifier of the self-adapting volume control answered based on distance perspective according to claim 1, it is characterised in that the processor of described control module adopts Atmega168PA single-chip microcomputer.
4. the audio amplifier of the self-adapting volume control answered based on distance perspective according to claim 1, it is characterised in that described sound acquisition module adopts mike.
5. the audio amplifier of the self-adapting volume control answered based on distance perspective according to claim 4, it is characterised in that described mike adopts pin-hole type mike.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191298.8A CN105744441A (en) | 2016-03-30 | 2016-03-30 | Self-adaptive volume adjustment loudspeaker box based on distance sensing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610191298.8A CN105744441A (en) | 2016-03-30 | 2016-03-30 | Self-adaptive volume adjustment loudspeaker box based on distance sensing |
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| CN105744441A true CN105744441A (en) | 2016-07-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231494A (en) * | 2016-08-31 | 2016-12-14 | 北海华源电子有限公司 | The intelligent sound equipment of volume can be adjusted according to distance |
| CN107918726A (en) * | 2017-10-18 | 2018-04-17 | 深圳市汉普电子技术开发有限公司 | Apart from inducing method, equipment and storage medium |
| CN108153171A (en) * | 2017-12-23 | 2018-06-12 | 广州市尊浪电器有限公司 | A kind of intelligent sound tracing system |
| CN108231073A (en) * | 2016-12-16 | 2018-06-29 | 深圳富泰宏精密工业有限公司 | Phonetic controller, system and control method |
| WO2019169687A1 (en) * | 2018-03-06 | 2019-09-12 | 深圳市沃特沃德股份有限公司 | Audio adjustment method and apparatus, and audio device |
| CN112073874A (en) * | 2020-08-27 | 2020-12-11 | 华南理工大学 | Volume control system for intelligent sound box and control method thereof |
| CN112905146A (en) * | 2021-02-25 | 2021-06-04 | 读书郎教育科技有限公司 | Scanning pen and method for protecting privacy according to direction and distance |
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| JPS62136200A (en) * | 1985-12-09 | 1987-06-19 | Masaya Sasano | Audio device |
| CN101483413A (en) * | 2008-01-07 | 2009-07-15 | 联想(北京)有限公司 | Method, apparatus and loudspeaker for volume regulation |
| CN201708910U (en) * | 2010-06-29 | 2011-01-12 | 深圳Tcl新技术有限公司 | Intelligent induction sound box |
| CN202435555U (en) * | 2012-01-05 | 2012-09-12 | 东莞市卓科电子有限公司 | Intelligent-tuning sound box |
| CN104735584A (en) * | 2013-12-22 | 2015-06-24 | 李乐 | Loudspeaker box capable of automatically adjusting volume |
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| JPS62136200A (en) * | 1985-12-09 | 1987-06-19 | Masaya Sasano | Audio device |
| CN101483413A (en) * | 2008-01-07 | 2009-07-15 | 联想(北京)有限公司 | Method, apparatus and loudspeaker for volume regulation |
| CN201708910U (en) * | 2010-06-29 | 2011-01-12 | 深圳Tcl新技术有限公司 | Intelligent induction sound box |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231494A (en) * | 2016-08-31 | 2016-12-14 | 北海华源电子有限公司 | The intelligent sound equipment of volume can be adjusted according to distance |
| CN108231073A (en) * | 2016-12-16 | 2018-06-29 | 深圳富泰宏精密工业有限公司 | Phonetic controller, system and control method |
| CN107918726A (en) * | 2017-10-18 | 2018-04-17 | 深圳市汉普电子技术开发有限公司 | Apart from inducing method, equipment and storage medium |
| CN108153171A (en) * | 2017-12-23 | 2018-06-12 | 广州市尊浪电器有限公司 | A kind of intelligent sound tracing system |
| WO2019169687A1 (en) * | 2018-03-06 | 2019-09-12 | 深圳市沃特沃德股份有限公司 | Audio adjustment method and apparatus, and audio device |
| CN112073874A (en) * | 2020-08-27 | 2020-12-11 | 华南理工大学 | Volume control system for intelligent sound box and control method thereof |
| CN112905146A (en) * | 2021-02-25 | 2021-06-04 | 读书郎教育科技有限公司 | Scanning pen and method for protecting privacy according to direction and distance |
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Application publication date: 20160706 |