CN103929695B - Household mosaic Bluetooth music play system and player method - Google Patents

Household mosaic Bluetooth music play system and player method Download PDF

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Publication number
CN103929695B
CN103929695B CN201410089317.7A CN201410089317A CN103929695B CN 103929695 B CN103929695 B CN 103929695B CN 201410089317 A CN201410089317 A CN 201410089317A CN 103929695 B CN103929695 B CN 103929695B
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circuit
signal
bluetooth
control circuit
power amplifier
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CN103929695A (en
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曹桂海
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HANGZHOU NUVO ELECTRONICS CO Ltd
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HANGZHOU NUVO ELECTRONICS CO Ltd
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Abstract

The present invention relates to a kind of home audio processing of control with transmission that wireless terminal audio signal can be realized by software and the household mosaic Bluetooth music play system and player method of intelligent control, wireless audio data streams transmission signal is used between Bluetooth signal receiving circuit in smart mobile phone or tablet personal computer and main control circuit, the signal input part connection of volume sound effect processing circuit in the signal output part and power amplifier of audio frequency processing circuit in main control circuit, the output end of power circuit is powered to power amplifier, the signal input part of the signal output part connection control circuit signal deteching circuit of signal control circuit in power amplifier, master controller signal end connects the defeated end of the signal of power amplification circuit signal end and volume sound effect processing circuit in power amplifier respectively in main control circuit.Advantage:User only needs mobile phone passing through bluetooth connection to power amplifier, it is possible to realizes the broadcasting and control of music content in network and mobile phone.

Description

Household mosaic Bluetooth music play system and player method
Technical field
At a kind of home audio for control with the transmission that wireless terminal audio signal can be realized by software The household mosaic Bluetooth music play system and player method of reason and intelligent control, category Bluetooth music play system manufacture neck Domain.
Background technology
At present, music signal is substantially connected to power amplifier by audio frequency power amplifier by the mini three-dimensional sound ray of RCA lines or 3.5mm In equipment, but these schemes all carry many limitations, are unfavorable for realizing domestic intelligent, convenience control, and now The wireless terminals such as the smart mobile phones of iOS/ Android systems, IPAD, TOUCH, SAMSUNG flat board are more and more, to realize music It is wirelessly transferred and facilitates control, is relatively adapted to using wireless audio frequency transmission function and control program.
The content of the invention
Purpose of design:The weak point in background technology is avoided, design one kind can realize wireless terminal audio by software The home audio processing and the household mosaic Bluetooth music play system of intelligent control and broadcasting of control with the transmission of signal Method.
Design:In order to realize above-mentioned purpose of design.The present invention is in system design, using wireless audio data streams Transmission and decoding technique, and receiving device is transferred signals to by bluetooth communication agreement, receiving device is decoded after receiving Play, user only needs mobile phone passing through bluetooth connection to power amplifier, it is possible to realizes the broadcasting of music content in network and mobile phone With control.
Technical scheme:A kind of household mosaic Bluetooth music play system, it is characterized in that:Smart mobile phone or tablet personal computer with Wireless audio data streams transmission signal is used between Bluetooth signal receiving circuit in main control circuit, the main control circuit is by indigo plant Tooth signal receiving circuit, bluetooth decoding circuit, audio frequency processing circuit, signal deteching circuit and master controller are formed;Bluetooth signal Receiving circuit signal output terminates the signal input part of bluetooth decoding circuit, bluetooth decoding circuit signal output termination audio frequency process The signal input part of circuit, signal deteching circuit signal output termination master controller signal input part, master controller signal termination Bluetooth decoding circuit signal end;Volume sound in the signal output part and power amplifier of audio frequency processing circuit in main control circuit The signal input part connection of process circuit is imitated, the power amplifier is by volume sound effect processing circuit, signal control circuit and power amplifier Circuit is formed;Volume sound effect processing circuit signal output part connects signal detection electricity in signal control circuit and main control circuit respectively Road signal input part, signal control circuit signal output termination power amplification circuit signal input part, power amplification circuit signal Output termination sound equipment, the output end of power circuit are powered to power amplifier, and the signal of the signal control circuit in power amplifier is defeated Go out to terminate the signal input part of main control circuit signal deteching circuit, master controller signal end connects power amplifier respectively in main control circuit The signal input part of power amplification circuit signal end and volume sound effect processing circuit in circuit;Its player method:Bluetooth signal connects Receive circuit to be placed on the outmost control panel of product, main control circuit and bluetooth decoding circuit, sound volume effect process circuit, work( Electric discharge road carries out Communication Control, realizes the Detection & Controling of the state of circuit;When Bluetooth signal receiving circuit does not have signal or outer Connect source of sound and input no signal more than after setting time, system carries out standby mode;When Bluetooth signal receiving circuit receives indigo plant Tooth baseband signal(2.0/4.0 bluetooth protocol repertory)Afterwards by the LNA processing of circuit of inside, bluetooth decoding circuit is sent to handle, decoding Audio I2S signals afterwards are converted into the differential signal of left and right acoustic channels by internal DAC-circuit, and differential signal passes through a buffer Audio volume control circuit is sent after processing of circuit, the signal after modulation passes through automatic amplitude control circuit, then send D class power again Amplifying circuit carries out signal amplification, and the signal after amplification is connected to the playback that music is realized on external speaker.
The present invention, first, realizing Household electric appliance intelligent control, convenience, overcomes background technology compared with background technology Existing deficiency;Second, the bluetooth power amplifier can not only conveniently control, and can realize automatic Hui Lian, disconnect after regularly enter treat Machine, energy-conserving and environment-protective, and Bluetooth control, power supply, power amplifier etc. can be integrated into a very small space, standard 86 can be installed to In panel, user installation is facilitated to use;Third, user-friendly, energy consumption is low.
Brief description of the drawings
Fig. 1 is the circuit diagram of household mosaic Bluetooth music play system.
Fig. 2 is the product schematic perspective view after Fig. 1 is made.
Embodiment
Embodiment 1:Referring to the drawings 1 and 2.A kind of household mosaic Bluetooth music play system, smart mobile phone or flat board electricity Wireless audio data streams transmission signal, main control circuit are used between Bluetooth signal receiving circuit 21 in brain 1 and main control circuit 2 The signal input part of the signal output part of audio frequency processing circuit 23 in 2 and the volume sound effect processing circuit 31 in power amplifier 3 Connection, the output end of power circuit 4 are powered to power amplifier 3, the signal output part of the signal control circuit 32 in power amplifier 3 The signal input part of the signal deteching circuit 24 of main control circuit 2 is connect, the signal end of master controller 25 connects respectively in main control circuit 2 The signal input part of the signal end of D classes power amplification circuit 33 and volume sound effect processing circuit 31 in power amplifier 3.The main control Circuit 2 is by Bluetooth signal receiving circuit 21, bluetooth decoding circuit 22, audio frequency processing circuit 23, signal deteching circuit 24 and master control Device 25 processed is formed;The signal input part of the signal output of Bluetooth signal receiving circuit 21 termination bluetooth decoding circuit 22, bluetooth decoding The signal output of circuit 22 terminates the signal input part of audio frequency processing circuit 23, the termination main control of the signal output of signal deteching circuit 24 The signal input part of device 25, the signal end of the signal of master controller 25 termination bluetooth decoding circuit 22.The power amplifier 3 is by volume audio Process circuit 31, signal control circuit 32 and D classes power amplification circuit 33 are formed;The signal output part of volume sound effect processing circuit 31 The signal input part of signal deteching circuit 24, signal control circuit 32 in signal control circuit 32 and main control circuit 2 is connect respectively to believe Number signal input part of output termination D classes power amplification circuit 33, the output termination sound equipment of D classes power amplification circuit 33.The power supply Circuit 4 is made up of EMI circuits 41, main power source translation circuit 42 and feedback control circuit 43;The input of EMI circuits 41 terminates external electricity Source, the input of the output termination main power source of EMI circuits 41 translation circuit 42, the output termination control feedback of main power source translation circuit 42 The input of circuit 43, the output termination power end of power amplifier 4 of feedback control circuit 43.The Bluetooth signal receiving circuit 21 In on control panel.
The installation of this bluetooth power amplifier is got home on middle wall in 86 type panels of standard, power supply and audio amplifier line is connected, is powered After work, system software meeting auto-initiation working state of system and the state for recovering last time operation, and control bluetooth to retrieve, when After user mobile phone is connected to power amplifier, main control software will be switched on Bluetooth function automatically, user by mobile phone easily The broadcasting control of music is carried out, when no bluetooth accesses, main control software control power amplifier is connected in local source of sound input, if When bluetooth and local source of sound all do not access, main control software can be timed Opportunity awaiting control for linear automatically, realize power saving function.
To connect high Bluetooth signal receiving sensitivity when designing this bluetooth power amplifier, Power Management Design purchases high frequency switch power skill Art, power attenuation being reduced, ON-OFF control circuit uses software switch technology, improves the reliability of circuit, and by Power Management Design extremely Minimum dimension, the penetralia of whole product is placed on, reduces the interference to Bluetooth signal.
Main control circuit carries out Communication Control with bluetooth decoding circuit, sound effect processing circuit, power amplifier, realizes circuit The Detection & Controling of state.After bluetooth does not have signal or the no signal of external source of sound input exceedes setting time, system is carried out Standby mode, energy resource consumption is reduced, realizes energy-conserving and environment-protective.
Embodiment 2:On the basis of embodiment 1, a kind of player method of household mosaic Bluetooth music play system is blue Tooth signal receiving circuit 21 is placed on the outmost control panel of product, main control circuit 2 and bluetooth decoding circuit 22, volume sound Process circuit 31, the progress Communication Control of power amplifier 3 are imitated, realizes the Detection & Controling of the state of circuit;When Bluetooth signal receives Circuit 21 inputs no signal more than after setting time without signal or external source of sound, and system carries out standby mode;When bluetooth is believed Number receiving circuit 21 receives bluetooth baseband signal(2.0/4.0 bluetooth protocol repertory)Afterwards by the LNA processing of circuit of inside, indigo plant is sent Tooth decoding circuit 22 is handled, and decoded audio I2S signals are converted into the differential signal of left and right acoustic channels by internal DAC-circuit, Differential signal send volume sound effect processing circuit 31 after a buffer processing of circuit, and the signal after modulation passes through automatic width Control circuit is spent, then send D classes power amplification circuit 33 to carry out signal amplification again, the signal after amplification is connected on external speaker real The playback of existing music.
It is to be understood that:Although above-described embodiment is contrasted to the mentality of designing of the present invention, detailed word is retouched State, but these word descriptions, simply the simple text of mentality of designing of the present invention is described, rather than to mentality of designing of the present invention Limitation, any combination, increase or modification without departing from mentality of designing of the present invention, each fall within protection scope of the present invention.

Claims (3)

1. a kind of household mosaic Bluetooth music play system, it is characterized in that:Smart mobile phone or tablet personal computer(1)With main control electricity Road(2)In Bluetooth signal receiving circuit(21)Between use wireless audio data streams transmission signal, the main control circuit(2)By Bluetooth signal receiving circuit(21), bluetooth decoding circuit(22), audio frequency processing circuit(23), signal deteching circuit(24)And master control Device processed(25)Form;Bluetooth signal receiving circuit(21)Signal output terminates bluetooth decoding circuit(22)Signal input part, it is blue Tooth decoding circuit(22)Signal output terminates audio frequency processing circuit(23)Signal input part, signal deteching circuit(24)Signal is defeated Go out to terminate master controller(25)Signal input part, master controller(25)Signal terminates bluetooth decoding circuit(22)Signal end;Master control Circuit processed(2)In audio frequency processing circuit(23)Signal output part and power amplifier(3)In volume sound effect processing circuit (31)Signal input part connection, the power amplifier(3)By volume sound effect processing circuit(31), signal control circuit(32)With D class power amplification circuits(33)Form;Volume sound effect processing circuit(31)Signal output part connects signal control circuit respectively(32) And main control circuit(2)Middle signal deteching circuit(24)Signal input part, signal control circuit(32)Signal output terminates D class work( Rate amplifying circuit(33)Signal input part, D class power amplification circuits(33)Signal output terminates sound equipment, power circuit(4)It is defeated Go out end to power amplifier(3)Power supply, power amplifier(3)In signal control circuit(32)Signal output termination main control circuit (2)Signal deteching circuit(24)Signal input part, main control circuit(2)Middle master controller(25)Signal end connects power amplifier electricity respectively Road(3)Middle D classes power amplification circuit(33)Signal end and volume sound effect processing circuit(31)Signal input part;Its broadcasting side Method:Bluetooth signal receiving circuit(21)It is placed on the outmost control panel of product, main control circuit(2)With bluetooth decoding circuit (22), volume sound effect processing circuit(31), power amplifier(3)Communication Control is carried out, realizes the detection and control of the state of circuit System;When Bluetooth signal receiving circuit(21)There is no signal or external source of sound to input no signal more than after setting time, system is entered Row standby mode;When Bluetooth signal receiving circuit(21)Receive after bluetooth baseband signal by the LNA processing of circuit of inside, send Bluetooth decoding circuit(22)Processing, the difference that decoded audio I2S signals are converted into left and right acoustic channels by internal DAC-circuit are believed Number, differential signal send volume sound effect processing circuit after a buffer processing of circuit(31), the signal after modulation is by certainly Dynamic amplitude control circuit, then send D class power amplification circuits again(33)Signal amplification is carried out, the signal after amplification is connected to external sound The playback of music is realized on case.
2. household mosaic Bluetooth music play system according to claim 1, it is characterized in that:The power circuit(4) By EMI circuits(41), main power source translation circuit(42)And feedback control circuit(43)Form;EMI circuits(41)Input termination is outer Connect power supply, EMI circuits(41)Output termination main power source translation circuit(42)Input, main power source translation circuit(42)Output end Connect feedback control circuit(43)Input, feedback control circuit(43)Output termination power amplifier(4)Power end.
3. household mosaic Bluetooth music play system according to claim 1, it is characterized in that:The Bluetooth signal receives Circuit(21)On control panel.
CN201410089317.7A 2014-03-12 2014-03-12 Household mosaic Bluetooth music play system and player method Active CN103929695B (en)

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Application Number Priority Date Filing Date Title
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CN103929695B true CN103929695B (en) 2018-01-16

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CN107785036A (en) * 2016-08-25 2018-03-09 特酷电子设备(上海)有限公司 Smart home embedded Bluetooth background music player
CN106788496B (en) * 2016-12-15 2022-08-16 杭州鸿雁电器有限公司 Wall type radio
CN106843799B (en) * 2016-12-22 2019-12-10 杭州鸿雁电器有限公司 Wall type charging device with Bluetooth power amplifier and audio data synchronization method
CN109004999A (en) * 2018-10-22 2018-12-14 成都共同进步信息技术有限公司 A kind of interior wisdom ecology broadcast platform equipment
CN113709691B (en) * 2020-05-19 2024-04-02 百度在线网络技术(北京)有限公司 Audio data playing method, device, equipment and storage medium

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