CN105120379A - WIFI sound box characterized by automatic power-off based on audio signal detection - Google Patents
WIFI sound box characterized by automatic power-off based on audio signal detection Download PDFInfo
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- CN105120379A CN105120379A CN201510457891.8A CN201510457891A CN105120379A CN 105120379 A CN105120379 A CN 105120379A CN 201510457891 A CN201510457891 A CN 201510457891A CN 105120379 A CN105120379 A CN 105120379A
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Abstract
The invention discloses a WIFI sound box characterized by automatic power-off based on audio signal detection. The WIFI sound box comprises an Aux audio interface, a WIFI module, a control module, a storage module, a sound source selection module, an audio signal detection module, an audio decoding module, an amplifying circuit and a loudspeaker. The control module is connected with the WIFI module, the storage module, the sound source selection module and the audio signal detection module. The Aux audio interface is connected with the sound source selection module. The output end of the sound source selection module is connected with the audio signal detection module and the audio decoding module. The loudspeaker is connected with the audio decoding module through the amplifying circuit. The control module is used for controlling the WIFI module to receive audio data according to a playing protocol in the storage module. The control module further makes the WIFI sound box turned off when no audio signals are detected by the audio signal detection module to be output beyond a preset time threshold. The WIFI sound box with a simple structure is convenient to use and can be automatically turned off. Power consumption due to a person forgetting to turn off the WIFI sound box can be prevented.
Description
Technical field
The present invention relates to audio amplifier field, particularly relate to a kind of WIFI audio amplifier detecting automatic shutdown based on audio signal.
Background technology
Audio amplifier refers to a kind of equipment that audio signal can be transformed to sound.Popular saying just refers in speaker main casing or subwoofer casing and carries power amplifier, goes out sound, make its sound become large to audio signal after carrying out amplification process by the playback of audio amplifier own.
The object that why there is casing of audio amplifier---mainly in order to prevent the acoustic signals of diaphragm of loudspeaker obverse and reverse from directly forming loop, cause the high intermediate frequency sound only having wavelength very little to propagate out, and other voice signal is applied and has balanced out.
The physical model of audio amplifier opens a hole on one block of infinitely-great rigidity baffle, installs loud speaker, so just can ensure that the voice signal of loud speaker obverse and reverse can not form loop, cause sound wave loop.
But actual use, audio amplifier impossible make infinitely-great, and therefore, people form an airtight space with baffle after loud speaker, ensure the front transmission of sound wave.
Thing followed problem: due to atmospheric problem after audio amplifier is airtight, the casing of audio amplifier is more conducive to more greatly low-frequency sound reduction, so, the volume of general audio amplifier be according in the speaker size of bass unit calculate the data of a compromise.
Much still can not allow too large casing by environment, people are in order to further reduced volume, the requirement of resetting according to feature and the reinforcement low-frequency sound wave of sound wave again devises baffle in case, phase-reversing tube, resonant cavity etc., mainly in order to strengthen at the voice signal of low frequency frequency range to certain wavelength, and reduce atmospheric pressure further to the impact of sound-reducing.
Loud speaker is a device the weakest in stereo set, and for acoustics, it is again most important parts.Loud speaker has multiple sort-type: can be divided into electrodynamic type, electromagnetic type, piezoelectric type, digital etc. multiple by its transducing mode; Single cone, compound cone, compound horn, coaxial etc. multiple can be divided into by diaphragm structure; Cone benzvalene form, ball top type, flat, belt etc. can be divided into multiple by vibrating diaphragm beginning; Frequently high frequency, intermediate frequency, low frequency, ultralow frequency and full range speaker can be divided into by playback; External magnetic type, internal magnetization, double magnetic circuit formula and protected type etc. can be divided into multiple by magnetic circuit form; Ferrimagnet, neodymium boron magnet, alnico magnet loud speaker can be divided into by magnetic circuit character; Papery and non-cone loudspeaker etc. can be divided by diaphragm materials.
A, dynamic speaker are most widely used, and it utilizes the interaction force between voice coil loudspeaker voice coil and stationary magnetic field to make diaphragm oscillations and sounding.DYN dynamic woofer is in the majority to bore benzvalene form, and Squawker mostly is cone benzvalene form or ball top type, and high pitch loudspeaker is then conventional with ball top type and belt, horn type.
The structure of B, cone benzvalene form loud speaker is simple, and energy conversion efficiency is higher.The diaphragm materials that it uses based on paper pulp material, or mixes the materials such as wool, silk, carbon fiber, to increase the performances such as its rigidity, internal damping and waterproof.A new generation's electrodynamic type cone basin loudspeaker employs non-paper cone, and as composite materials such as polypropylene, mica silicon carbide/polypropylene, carbon fiber textile, bulletproof cloth, hard aluminium foil, CD ripple, glass fibres, performance gains improves.
C, ball top type loudspeaker have soft ball top and hard sphere top point.The cotton of the color silk of the vibrating diaphragm of soft ball item loud speaker, tiffany, impregnated phenolic resin, chemical fibre and composite material, be characterized in that playback tonequality is soft and graceful; The materials such as vibrating diaphragm color aluminium alloy, titanium alloy and the beryllium alloy of hard Dome loudspeaker, are characterized in that playback tonequality is clear and melodious.
The radiation mode of D, horn loudspeaker is different from cone benzvalene form loud speaker, and this is after diaphragm oscillations, and sound spreads out through horn again.Be characterized in electroacoustic conversion and radiation efficiency little compared with high, distance, distortion, but playback frequency band and directive property narrower.
The voice coil loudspeaker voice coil of E, ribbon speaker is directly produced on whole vibrating diaphragm (aluminium alloy polyimide film etc.), direct-coupling between voice coil loudspeaker voice coil and vibrating diaphragm.The alternating magnetic field that voice coil loudspeaker voice coil is produced and Constant charge soil interact, and make belt diaphragm oscillations and give off sound wave.Be characterized in that fast response time, distortion are little, playback tonequality is fine and smooth, stereovision is good.
Casing is used for eliminating the acoustic short circuit of loudspeaker unit, suppresses its acoustic resonance, widens its Hz-KHz, reduces distortion.The box shape structure of audio amplifier have bookshelf-type and console mode point, also have vertical and horizontal dividing.Box inner structure has again the various ways such as closed, inverted phase type, band general formula, empty cone formula, labyrinth type, symmetrical drive-type and horn type, and using maximum is closed, inverted phase type and band general formula.
Existing audio amplifier is all generally wired connection, at limited space or very inconvenient when needing frequent Mobile loudspeaker box.
In addition, existing audio amplifier generally all can not automatic shutdown, and many times, after music, people can forget shutdown, and audio amplifier is in "on" position always, waste electric energy.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, provides a kind of WIFI audio amplifier detecting automatic shutdown based on audio signal.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Detect the WIFI audio amplifier of automatic shutdown based on audio signal, comprise Aux audio interface, WIFI module, control module, memory module, source of sound selection module, audio signal detection module, audio decoder module, amplifying circuit and loud speaker;
Described control module selects module with WIFI module, memory module, source of sound respectively, audio signal detection module is connected, described Aux audio interface and described source of sound select module to be connected, described source of sound selects the output of module to be connected with audio signal detection module, audio decoder module respectively, and described loud speaker is connected with audio decoder module by described amplifying circuit;
Described memory module is for storing broadcasting agreement;
The WIFI voice data that described source of sound selects module to transmit for the voice data or control module selecting to receive Aux audio interface;
The voice data that described audio decoder module receives for decoding;
Described loud speaker is for playing the voice data after amplifying circuit amplifies;
Whether described audio signal detection module selects module to have audio signal to export for detecting source of sound, and is passed to described control module;
Described control module comprises WIFI control unit and shutdown control unit;
Described WIFI control unit is used for the voice data receiving WIFI module according to the broadcasting agreement in memory module, and is passed to described source of sound selection module;
Described shutdown control unit is used for closing WIFI audio amplifier when source of sound is selected module not have audio signal to export and kept the duration of this state to be more than or equal to default time threshold.
As the further prioritization scheme of WIFI audio amplifier that the present invention is based on audio signal detection automatic shutdown, the processor of described control module adopts ARM series monolithic.
As the further prioritization scheme of WIFI audio amplifier that the present invention is based on audio signal detection automatic shutdown, the processor of described control module adopts SAA7750 single-chip microcomputer.
As the further prioritization scheme of WIFI audio amplifier that the present invention is based on audio signal detection automatic shutdown, described memory module adopts SDRAM.
As the further prioritization scheme of WIFI audio amplifier that the present invention is based on audio signal detection automatic shutdown, the model of described memory module is K4S561632.
As the further prioritization scheme of WIFI audio amplifier that the present invention is based on audio signal detection automatic shutdown, described broadcasting agreement adopts DLNA agreement.
As the further prioritization scheme of WIFI audio amplifier that the present invention is based on audio signal detection automatic shutdown, described default time threshold is 30 seconds.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2. can automatic shutdown, prevent from forgetting shutdown and power consumption always.
Embodiment
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of WIFI audio amplifier detecting automatic shutdown based on audio signal, comprise Aux audio interface, WIFI module, control module, memory module, source of sound selection module, audio signal detection module, audio decoder module, amplifying circuit and loud speaker;
Described control module selects module with WIFI module, memory module, source of sound respectively, audio signal detection module is connected, described Aux audio interface and described source of sound select module to be connected, described source of sound selects the output of module to be connected with audio signal detection module, audio decoder module respectively, and described loud speaker is connected with audio decoder module by described amplifying circuit;
Described memory module is for storing broadcasting agreement;
The WIFI voice data that described source of sound selects module to transmit for the voice data or control module selecting to receive Aux audio interface;
The voice data that described audio decoder module receives for decoding;
Described loud speaker is for playing the voice data after amplifying circuit amplifies;
Whether described audio signal detection module selects module to have audio signal to export for detecting source of sound, and is passed to described control module;
Described control module comprises WIFI control unit and shutdown control unit;
Described WIFI control unit is used for the voice data receiving WIFI module according to the broadcasting agreement in memory module, and is passed to described source of sound selection module;
Described shutdown control unit is used for closing WIFI audio amplifier when source of sound is selected module not have audio signal to export and kept the duration of this state to be more than or equal to default time threshold.
The processor of described control module adopts ARM series monolithic, preferential employing SAA7750 single-chip microcomputer.
Described memory module adopts SDRAM, and model is K4S561632.
Described broadcasting agreement adopts DLNA agreement.
Described default time threshold is 30 seconds.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. detect the WIFI audio amplifier of automatic shutdown based on audio signal, it is characterized in that, comprise Aux audio interface, WIFI module, control module, memory module, source of sound selection module, audio signal detection module, audio decoder module, amplifying circuit and loud speaker;
Described control module selects module with WIFI module, memory module, source of sound respectively, audio signal detection module is connected, described Aux audio interface and described source of sound select module to be connected, described source of sound selects the output of module to be connected with audio signal detection module, audio decoder module respectively, and described loud speaker is connected with audio decoder module by described amplifying circuit;
Described memory module is for storing broadcasting agreement;
The WIFI voice data that described source of sound selects module to transmit for the voice data or control module selecting to receive Aux audio interface;
The voice data that described audio decoder module receives for decoding;
Described loud speaker is for playing the voice data after amplifying circuit amplifies;
Whether described audio signal detection module selects module to have audio signal to export for detecting source of sound, and is passed to described control module;
Described control module comprises WIFI control unit and shutdown control unit;
Described WIFI control unit is used for the voice data receiving WIFI module according to the broadcasting agreement in memory module, and is passed to described source of sound selection module;
Described shutdown control unit is used for closing WIFI audio amplifier when source of sound is selected module not have audio signal to export and kept the duration of this state to be more than or equal to default time threshold.
2. the WIFI audio amplifier detecting automatic shutdown based on audio signal according to claim 1, is characterized in that, the processor of described control module adopts ARM series monolithic.
3. the WIFI audio amplifier detecting automatic shutdown based on audio signal according to claim 2, is characterized in that, the processor of described control module adopts SAA7750 single-chip microcomputer.
4. the WIFI audio amplifier detecting automatic shutdown based on audio signal according to claim 1, is characterized in that, described memory module adopts SDRAM.
5. the WIFI audio amplifier detecting automatic shutdown based on audio signal according to claim 4, it is characterized in that, the model of described memory module is K4S561632.
6. the WIFI audio amplifier detecting automatic shutdown based on audio signal according to claim 1, is characterized in that, described broadcasting agreement adopts DLNA agreement.
7. the WIFI audio amplifier detecting automatic shutdown based on audio signal according to claim 1, it is characterized in that, described default time threshold is 30 seconds.
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| CN201510457891.8A CN105120379A (en) | 2015-07-30 | 2015-07-30 | WIFI sound box characterized by automatic power-off based on audio signal detection |
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| CN201510457891.8A CN105120379A (en) | 2015-07-30 | 2015-07-30 | WIFI sound box characterized by automatic power-off based on audio signal detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093340A (en) * | 2017-12-25 | 2018-05-29 | 广州市尊浪电器有限公司 | A kind of speaker with intelligent switch machine |
| CN108093339A (en) * | 2017-12-25 | 2018-05-29 | 广州市尊浪电器有限公司 | Control the method and device of sound equipment |
| CN109379677A (en) * | 2018-12-14 | 2019-02-22 | 赣州得辉达科技有限公司 | A kind of control method, device and the readable storage medium storing program for executing of speaker low-power consumption work |
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| CN104010250A (en) * | 2013-02-21 | 2014-08-27 | 鸿富锦精密电子(天津)有限公司 | Sound box control system and method |
| CN104333831A (en) * | 2014-10-16 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Adaptive audio system |
| CN104333828A (en) * | 2014-10-16 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Adaptive audio control method |
| CN104796816A (en) * | 2015-02-13 | 2015-07-22 | 无锡市崇安区科技创业服务中心 | Automatic-switching WIFI intelligent sound box |
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2015
- 2015-07-30 CN CN201510457891.8A patent/CN105120379A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104010250A (en) * | 2013-02-21 | 2014-08-27 | 鸿富锦精密电子(天津)有限公司 | Sound box control system and method |
| CN104333831A (en) * | 2014-10-16 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Adaptive audio system |
| CN104333828A (en) * | 2014-10-16 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Adaptive audio control method |
| CN104796816A (en) * | 2015-02-13 | 2015-07-22 | 无锡市崇安区科技创业服务中心 | Automatic-switching WIFI intelligent sound box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108093340A (en) * | 2017-12-25 | 2018-05-29 | 广州市尊浪电器有限公司 | A kind of speaker with intelligent switch machine |
| CN108093339A (en) * | 2017-12-25 | 2018-05-29 | 广州市尊浪电器有限公司 | Control the method and device of sound equipment |
| CN109379677A (en) * | 2018-12-14 | 2019-02-22 | 赣州得辉达科技有限公司 | A kind of control method, device and the readable storage medium storing program for executing of speaker low-power consumption work |
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Application publication date: 20151202 |