CN103929695A - Household embedded Bluetooth music playing system and method - Google Patents

Household embedded Bluetooth music playing system and method Download PDF

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Publication number
CN103929695A
CN103929695A CN201410089317.7A CN201410089317A CN103929695A CN 103929695 A CN103929695 A CN 103929695A CN 201410089317 A CN201410089317 A CN 201410089317A CN 103929695 A CN103929695 A CN 103929695A
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circuit
signal
bluetooth
power amplifier
control circuit
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CN201410089317.7A
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CN103929695B (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 invention relates to a household embedded Bluetooth music playing system and method. According to the household embedded Bluetooth music playing system and method, control and transmission of wireless terminal audio signals can be achieved through software, and household audio processing and control are intelligent. Signal transmission between a smart phone or a tablet personal computer and a Bluetooth signal receiving circuit in a master control circuit is carried out through wireless audio data streams, the signal output end of an audio processing circuit in the master control circuit is connected with the signal input end of a volume and sound effect processing circuit in an power amplifier circuit, the output end of a power circuit provides electricity for the power amplifier circuit, the signal output end of a signal control circuit in the power amplifier circuit is connected with the signal input end of a signal detection circuit in the master control circuit, the master controller signal end of the master control circuit is connected with the power amplifier circuit signal end of the power amplifier circuit and the signal output end of the volume and sound effect processing circuit in the power amplifier circuit. The household embedded Bluetooth music playing system and method have the advantages that a user only needs to connect the mobile phone to a power amplifier through Bluetooth so that playing of the music content and control over the music content in a network and the mobile phone can be achieved.

Description

Household mosaic Bluetooth music Play System and player method
Technical field
The present invention relates to a kind ofly can realize by software that the control of wireless terminal audio signal and the home audio of transmission are processed and household mosaic Bluetooth music Play System and the player method of intelligent control, belong to Bluetooth music Play System and manufacture field.
Background technology
At present, audio frequency power amplifier is connected to music signal on power amplifying device by RCA line or the mini three-dimensional sound ray of 3.5mm substantially, but these schemes are all with a lot of limitation, be unfavorable for realizing domestic intelligent, convenience control, and now the wireless terminals such as smart mobile phone, IPAD, TOUCH, SAMSUNG flat board of iOS/ Android system are more and more, for realizing wireless transmission and convenient control of music, adopt wireless audio frequency transmission function and control program more applicable.
Summary of the invention
Purpose of design: avoid the weak point in background technology, design and a kind ofly can realize by software that the control of wireless terminal audio signal and the home audio of transmission are processed and household mosaic Bluetooth music Play System and the player method of intelligent control.
Design: in order to realize above-mentioned purpose of design.The present invention is on system, adopt transmission and the decoding technique of wireless audio data streams, and transfer signals to receiving equipment by bluetooth communication agreement, the receiving equipment broadcasting of decoding after receiving, user only need to be connected to power amplifier by bluetooth by mobile phone, just can realize the commentary of music content in network and mobile phone.
Technical scheme 1: a kind of household mosaic Bluetooth music Play System, between the Bluetooth signal receiving circuit in smart mobile phone or panel computer and main control circuit, adopt wireless audio data streams signal transmission, the signal output part of the audio frequency processing circuit in main control circuit is connected with the signal input part of volume sound effect processing circuit in power amplifier, the output of power circuit is powered to power amplifier, the signal input part of the signal output part connection control circuit signal deteching circuit of the signal control circuit in power amplifier, in main control circuit, master controller signal end connects respectively the defeated end of signal of power amplification circuit signal end and volume sound effect processing circuit in power amplifier.
Technical scheme 2: a kind of player method of household mosaic Bluetooth music Play System, Bluetooth signal receiving circuit is placed on the outmost control board of product, main control circuit and bluetooth decoding circuit, sound volume effect treatment circuit, power amplifier carry out Communication Control, realize the Detection & Controling of the state of circuit; When Bluetooth signal receiving circuit has signal or the input of external source of sound, do not have signal to surpass after setting-up time, system is carried out standby mode; After Bluetooth signal receiving circuit receives bluetooth baseband signal (2.0/4.0 bluetooth protocol repertory) by inner LNA processing of circuit, send bluetooth decoding circuit to process, decoded audio frequency I2S signal becomes the differential signal of left and right acoustic channels by inner DAC circuit conversion, differential signal send audio volume control circuit after a buffer processing of circuit, signal after modulation is through automatic amplitude control circuit, and then sending D class power amplification circuit to carry out signal amplification, the signal after amplification is received the playback that realizes music on external speaker.
The present invention compares with background technology, and the one, realize Household electric appliance intelligent control, convenience, overcome the deficiency that background technology exists; The 2nd, this bluetooth power amplifier can not only conveniently be controlled, and regularly enter standby after realizing auto back connection, disconnection, energy-conserving and environment-protective, and Bluetooth control, power supply, power amplifier etc. can be integrated into a very little space, can be installed in standard 86 panels, facilitate user installation to use; The 3rd, user-friendly, energy consumption is low.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of household mosaic Bluetooth music Play System.
Fig. 2 is the product schematic perspective view after Fig. 1 makes.
Embodiment
Embodiment 1: with reference to attached Fig. 1 and 2.A kind of household mosaic Bluetooth music Play System, 21 of Bluetooth signal receiving circuits in smart mobile phone or panel computer 1 and main control circuit 2 adopt wireless audio data streams signal transmission, the signal output part of the audio frequency processing circuit 23 in main control circuit 2 is connected with the signal input part of volume sound effect processing circuit 31 in power amplifier 3, the output of power circuit 4 is to power amplifier 3 power supplies, the signal input part of signal output part connection control circuit 2 signal deteching circuits 24 of the signal control circuit 32 in power amplifier 3, in main control circuit 2, master controller 25 signal ends connect respectively the defeated end of signal of power amplification circuit 33 signal ends and volume sound effect processing circuit 31 in power amplifier 3.Described main control circuit 2 consists of Bluetooth signal receiving circuit 21, bluetooth decoding circuit 22, audio frequency processing circuit 23, signal deteching circuit 24 and master controller 25; Bluetooth signal receiving circuit 21 signal output parts connect the signal input part of bluetooth decoding circuit 22, bluetooth decoding circuit 22 signal output parts connect the signal input part of audio frequency processing circuit 23, signal deteching circuit 24 signal output parts connect master controller 25 signal input parts, master controller 25 signal termination bluetooth decoding circuit 22 signal ends.Described power amplifier 3 consists of volume sound effect processing circuit 31, signal control circuit 32 and power amplifier 33; Volume sound effect processing circuit 31 signal output parts connect respectively signal deteching circuit 24 signal input parts in signal control circuit 32 and main control circuit 2, signal control circuit 32 signal output parts connect power amplification circuit 33 signal input parts, and power amplification circuit 33 signal output parts connect sound equipment.Described power circuit 4 consists of EMI circuit 41, main power source translation circuit 42 and feedback control circuit 43; EMI circuit 41 input termination external power supplys, the input of EMI circuit 41 output termination main power source translation circuits 42, main power source translation circuit 42 output termination feedback control circuit 43 inputs, output termination power amplifier 4 power ends of feedback control circuit 43.Described Bluetooth signal receiving circuit 21 is positioned on control board.
This bluetooth power amplifier is installed in 86 profile plates of standard on the middle wall of getting home, connect power supply and audio amplifier line, after energising work, the state of systems soft ware meeting auto-initiation working state of system and recovery operation last time, and control bluetooth and retrieve, when user mobile phone is connected to after power amplifier, master control software will be switched on Bluetooth function automatically, user carries out the Play Control of music easily by mobile phone, when there is no bluetooth access, master control software control power amplifier is received in local source of sound input, when if bluetooth and local source of sound all do not access, master control software can carry out timing standby control automatically, realize power saving function.
While designing this bluetooth power amplifier for connecing high Bluetooth signal receiving sensitivity, Power Management Design buying high frequency switch power technology, reduce power loss, ON-OFF control circuit adopts software switch technology, improve the reliability of circuit, and by Power Management Design to minimum dimension, be placed on the penetralia of whole product, reduce the interference to Bluetooth signal.
Main control circuit and bluetooth decoding circuit, sound effect processing circuit, power amplifier carry out Communication Control, realize the Detection & Controling of the state of circuit.When bluetooth has signal or the input of external source of sound, do not have signal to surpass after setting-up time, system is carried out standby mode, reduces energy resource consumption, 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, Bluetooth signal receiving circuit 21 is placed on the outmost control board of product, main control circuit 2 carries out Communication Control with bluetooth decoding circuit 22, sound volume effect treatment circuit 31, power amplifier 3, realizes the Detection & Controling of the state of circuit; When Bluetooth signal receiving circuit 21 has signal or the input of external source of sound, do not have signal to surpass after setting-up time, system is carried out standby mode; After Bluetooth signal receiving circuit 21 receives bluetooth baseband signal (2.0/4.0 bluetooth protocol repertory) by inner LNA processing of circuit, send bluetooth decoding circuit 22 to process, decoded audio frequency I2S signal becomes the differential signal of left and right acoustic channels by inner DAC circuit conversion, differential signal send audio volume control circuit 31 after a buffer processing of circuit, signal after modulation is through automatic amplitude control circuit, and then sending D class power amplification circuit 33 to carry out signal amplification, the signal after amplification is received the playback that realizes music on external speaker.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than the restriction to mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention, all falls within the scope of protection of the present invention.

Claims (6)

1. a household mosaic Bluetooth music Play System, it is characterized in that: between the Bluetooth signal receiving circuit (21) in smart mobile phone or panel computer (1) and main control circuit (2), adopt wireless audio data streams signal transmission, the signal output part of the audio frequency processing circuit (23) in main control circuit (2) is connected with the signal input part of volume sound effect processing circuit (31) in power amplifier (3), the output of power circuit (4) is powered to power amplifier (3), the signal input part of signal output part connection control circuit (2) signal deteching circuit (24) of the signal control circuit (32) in power amplifier (3), in main control circuit (2), master controller (25) signal end connects respectively the defeated end of signal of middle power amplification circuit (33) signal end of power amplifier (3) and volume sound effect processing circuit (31).
2. household mosaic Bluetooth music Play System according to claim 1, is characterized in that: described main control circuit (2) consists of Bluetooth signal receiving circuit (21), bluetooth decoding circuit (22), audio frequency processing circuit (23), signal deteching circuit (24) and master controller (25); Bluetooth signal receiving circuit (21) signal output part connects the signal input part of bluetooth decoding circuit (22), bluetooth decoding circuit (22) signal output part connects the signal input part of audio frequency processing circuit (23), signal deteching circuit (24) signal output part connects master controller (25) signal input part, master controller (25) signal termination bluetooth decoding circuit (22) signal end.
3. household mosaic Bluetooth music Play System according to claim 1, is characterized in that: described power amplifier (3) consists of volume sound effect processing circuit (31), signal control circuit (32) and power amplifier (33); Volume sound effect processing circuit (31) signal output part connects respectively signal deteching circuit (24) signal input part in signal control circuit (32) and main control circuit (2), signal control circuit (32) signal output part connects power amplification circuit (33) signal input part, and power amplification circuit (33) signal output part connects sound equipment.
4. household mosaic Bluetooth music Play System according to claim 1, is characterized in that: described power circuit (4) consists of EMI circuit (41), main power source translation circuit (42) and feedback control circuit (43); EMI circuit (41) input termination external power supply, the input of EMI circuit (41) output termination main power source translation circuit (42), main power source translation circuit (42) output termination feedback control circuit (43) input, output termination power amplifier (4) power end of feedback control circuit (43).
5. household mosaic Bluetooth music Play System according to claim 1, is characterized in that: described Bluetooth signal receiving circuit (21) is positioned on control board.
6. the player method of a household mosaic Bluetooth music Play System, it is characterized in that: Bluetooth signal receiving circuit (21) is placed on the outmost control board of product, main control circuit (2) carries out Communication Control with bluetooth decoding circuit (22), sound volume effect treatment circuit (31), power amplifier (3), realizes the Detection & Controling of the state of circuit, when Bluetooth signal receiving circuit (21) has signal or the input of external source of sound, do not have signal to surpass after setting-up time, system is carried out standby mode, after Bluetooth signal receiving circuit (21) receives bluetooth baseband signal (2.0/4.0 bluetooth protocol repertory) by inner LNA processing of circuit, send bluetooth decoding circuit (22) to process, decoded audio frequency I2S signal becomes the differential signal of left and right acoustic channels by inner DAC circuit conversion, differential signal send audio volume control circuit (31) after a buffer processing of circuit, signal after modulation is through automatic amplitude control circuit, and then send D class power amplification circuit (33) to carry out signal amplification, signal after amplification is received the playback that realizes music on external speaker.
CN201410089317.7A 2014-03-12 2014-03-12 Household mosaic Bluetooth music play system and player method Active CN103929695B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105812967A (en) * 2016-04-26 2016-07-27 镇江艾迪智能科技有限公司 86 type Bluetooth audio panel
CN106788496A (en) * 2016-12-15 2017-05-31 杭州鸿雁电器有限公司 A kind of wall type audio signal reception device
CN106843799A (en) * 2016-12-22 2017-06-13 杭州鸿雁电器有限公司 A kind of wall type charging device and voice data synchronous method with bluetooth power amplifier

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105812967A (en) * 2016-04-26 2016-07-27 镇江艾迪智能科技有限公司 86 type Bluetooth audio panel
CN106788496A (en) * 2016-12-15 2017-05-31 杭州鸿雁电器有限公司 A kind of wall type audio signal reception device
CN106843799A (en) * 2016-12-22 2017-06-13 杭州鸿雁电器有限公司 A kind of wall type charging device and voice data synchronous method with bluetooth power amplifier
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

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