CN106789133A - A kind of new digital conference system - Google Patents

A kind of new digital conference system Download PDF

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Publication number
CN106789133A
CN106789133A CN201710039694.3A CN201710039694A CN106789133A CN 106789133 A CN106789133 A CN 106789133A CN 201710039694 A CN201710039694 A CN 201710039694A CN 106789133 A CN106789133 A CN 106789133A
Authority
CN
China
Prior art keywords
signal
module
input
microphone
series signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710039694.3A
Other languages
Chinese (zh)
Inventor
沈紫辉
罗坤辉
唐海云
林峰
谭伟洪
洪徐弟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Guoguang Audio Technology Co., Ltd.
Guoguang Electric Co Ltd
Original Assignee
Guangzhou Huadu Guoguang Audio Technology Center (general Partnership)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Huadu Guoguang Audio Technology Center (general Partnership) filed Critical Guangzhou Huadu Guoguang Audio Technology Center (general Partnership)
Priority to CN201710039694.3A priority Critical patent/CN106789133A/en
Publication of CN106789133A publication Critical patent/CN106789133A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1863Arrangements for providing special services to substations for broadcast or conference, e.g. multicast comprising mechanisms for improved reliability, e.g. status reports
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus
    • G06F13/42Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • G06F13/4286Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a handshaking protocol, e.g. RS232C link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40Support for services or applications
    • H04L65/403Arrangements for multi-party communication, e.g. for conferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/08Mouthpieces; Microphones; Attachments therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

A kind of new digital conference system, including conference host and several microphone units, wherein:The conference host is provided with master, sub signal input port module, described several microphone units are connected on master by cable signal line, between sub signal input port module, the conference host also includes buffer input signal circuit, power amplifier module, CPU processor, bluetooth module, the communication interface modules of RS 485 and power voltage step down module, the input connection master of the buffer input signal circuit, sub signal input port module, output end wired power amplifier module, the bluetooth module, the control signal wire of the communication interface modules of RS 485 is all connected with CPU processor, present invention wiring is simple, signal transmitted in both directions, long distance of signal transmission, strong antijamming capability, and can flexibly control each microphone unit.

Description

A kind of new digital conference system
Technical field
The present invention relates to conference system, particularly a kind of new digital conference system.
Background technology
Most basic conference system, is made up of microphone, power amplifier, combined acoustics, and they serve transaudient, display, public address Effect, reaching can see, can listen, can speak.
All it is together in series with industrial siding between all microphones in conference system, finally to conference host, as handed in hand one As.When underway large-scale group's meeting is exchanged, conference speech person is numerous, and conference speech system can guarantee that each human hair hand in hand Speech is very convenient, while being easy to conference management again however, digital conference system is all by a connection microphone and service at present Device, once some microphone or junction are broken down, can cause whole conference system to work, while microphone and master The line of machine can not be long, the microphone line of overlength, and voice signal interference and relaxation phenomenon are serious, have a strong impact on conference speech Definition, then there is the conference host flexibly cannot to be controlled to each microphone unit, therefore traditional conference system control Operation is very inconvenient.
The content of the invention
It is simple it is an object of the invention to provide one kind wiring in order to overcome the disadvantages mentioned above of prior art, the two-way biography of signal Defeated, long distance of signal transmission, strong antijamming capability, and can flexibly control the digital conference system of each microphone unit.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of new digital conference system, including conference host and several microphone units, wherein:The conference host sets Major and minor signal input port module is equipped with, described several microphone units are connected on major and minor signal input by cable signal line Between port module, the conference host also include buffer input signal circuit, power amplifier module, CPU processor, bluetooth module, RS-485 communication interface modules and power voltage step down module, the input major and minor signal of connection of the buffer input signal circuit are defeated Inbound port module, output end wired power amplifier module, the bluetooth module, the control signal wire of RS-485 communication interface modules all with CPU processor is connected, and the bluetooth module is connected by Bluetooth signal with intelligent mobile terminal, the RS-485 communication interfaces mould Block interface is connected by netting twine with host computer, power output end connection CPU processor and the power amplifier of the power voltage step down module Module, power input connection civil power, the microphone unit includes T-shaped exchanger, the microphone base for microphone unit of connecting And the microphone on microphone base.
As a further improvement on the present invention:The T-shaped exchanger includes three port link blocks, i.e. series signals are defeated Inbound port module, series signals output port module and audio signal input end mouth mold block, the audio signal input end mouth mold Block connects the audio control signal output port of microphone stand by cable, and the series signals input port module passes through cable The signal primary input interface of line connection conference host or the series signals output port module of upper level t connector, the string Connection signal output port module connects the signal auxiliary input interface of conference host or the string of next stage t connector by cable Connection signal output part enters module.
As a further improvement on the present invention:The series signals input port module, series signals output port module And audio signal input end mouth mold block is RJ45 Wiring port modules.
As a further improvement on the present invention:The microphone base includes the dsp chip for audio and noise reduction process, uses In control microphone and the MCU processors of reception control signal, the dsp chip is by A/D signal adapters, DSP signal processors And D/A signal adapters are constituted, the signal input part connection A/D signal adapters of the DSP signal processors, signal output part Connection D/A signal adapters, the microphone is connected by A/D signal adapters with DSP signal processors, and the D/A signals turn The output end of parallel operation is connected through operational amplification circuit module with audio control signal output port, the control of the MCU processors Input connects audio control signal output port, controlled output port connection DSP signal processors, the audio control signal Output port is connected by cable with T-shaped exchanger.
Compared with prior art, the beneficial effects of the invention are as follows:Microphone unit of the present invention can be serially connected and be followed by into major and minor Signal input port module, connects up simple and clear;The series signals input port module of T-shaped exchanger, series signals output end Mouth mold block can be to both direction input signal to conference host, it is to avoid uniline is damaged, and causes message interrupts, improves microphone Incoming line stability, and break-make between microphone is independent of each other;The microphone stand of microphone unit is provided with regulation microphone audio DSP signal processors, can control DSP signal processors by remotely sending MCU processors of the control signal to microphone base Audio effect, you can conference host is connected by intelligent mobile terminal or host computer, each is set by conference host The audio effect of microphone;The microphone stand of microphone unit is provided with operational amplification circuit module, can be at through DSP signal processors The analog signal managed is amplified, and low level analog signal is enlarged into the analog signal of high level, the high level for making Analog signal is input to the buffer input signal circuit of conference host through the cable signal of long range, through buffer input signal circuit The analoging sound signal of high level is reduced to normal low level analoging sound signal, therefore message antidamping of the invention Property and anti-interference are stronger, can transmit farther distance so that the sound of conference system becomes apparent from.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is conference host structural representation of the invention;
Fig. 3 is microphone unit structural representation.
Fig. 4 is buffer input signal electrical block diagram of the invention.
Specific embodiment
In conjunction with brief description of the drawings, the present invention is further described with embodiment:
Referring to figs. 1 to Fig. 4, a kind of new digital conference system, including conference host and several microphone units, wherein:Institute State conference host and be provided with major and minor signal input port module, described several microphone units are connected on by cable signal line Between major and minor signal input port module, the conference host also includes buffer input signal circuit, power amplifier module, CPU treatment Device, bluetooth module, RS-485 communication interface modules and power voltage step down module, the input connection of the buffer input signal circuit Major and minor signal input port module, output end wired power amplifier module, the bluetooth module, the control of RS-485 communication interface modules Holding wire processed is all connected with CPU processor, and the bluetooth module is connected by Bluetooth signal with intelligent mobile terminal, the RS- 485 communication interface module interfaces are connected by netting twine with host computer, the power output end connection CPU of the power voltage step down module Processor and power amplifier module, power input connection civil power, the microphone unit include the T-shaped exchange for microphone unit of connecting Microphone on device, microphone base and microphone base.
The T-shaped exchanger includes three port link blocks, i.e. series signals input port module, series signals output Port module and audio signal input end mouth mold block, the audio signal input end mouth mold block connect microphone stand by cable Audio control signal output port, the series signals input port module is defeated by the signal master that cable connects conference host The series signals output port module of incoming interface or upper level t connector, the series signals output port module is by electricity The signal auxiliary input interface of cable connection connection conference host or the series signals output end of next stage t connector enter module.
The series signals input port module, series signals output port module and audio signal input end mouth mold block are RJ45 Wiring port modules.
The microphone base includes the dsp chip for audio and noise reduction process, for controlling microphone and receiving control letter Number MCU processors, by A/D signal adapters, DSP signal processors and D/A signal adapters are constituted the dsp chip, institute The signal input part connection A/D signal adapters of DSP signal processors are stated, signal output part connection D/A signal adapters are described Microphone is connected by A/D signal adapters with DSP signal processors, and the output end of the D/A signal adapters is through operation amplifier Circuit module is connected with audio control signal output port, the control signal connection audio control signal of the MCU processors Output port, controlled output port connection DSP signal processors, the audio control signal output port passes through cable and T Type exchanger is connected.
In sum, after one of ordinary skill in the art reads file of the present invention, technology according to the present invention scheme with Technology design makes other various corresponding conversion schemes without creative mental labour, belongs to the model that the present invention is protected Enclose.

Claims (4)

1. a kind of new digital conference system, including conference host and several microphone units, it is characterised in that:The meeting View main frame is provided with major and minor signal input port module, and described several microphone units are connected on major and minor by cable signal line Between signal input port module, the conference host also includes buffer input signal circuit, and power amplifier module, CPU processor is blue Tooth module, RS-485 communication interface modules and power voltage step down module, the input connection of the buffer input signal circuit are major and minor Signal input port module, output end wired power amplifier module, the bluetooth module, the control signal of RS-485 communication interface modules Line is all connected with CPU processor, and the bluetooth module is connected by Bluetooth signal with intelligent mobile terminal, the RS-485 communications Interface module interface is connected by netting twine with host computer, the power output end connection CPU processor of the power voltage step down module And power amplifier module, power input connection civil power, the microphone unit includes for connect T-shaped exchanger, the words of microphone unit Microphone on cylinder base and microphone base.
2. a kind of new digital conference system according to claim 1, it is characterised in that:The T-shaped exchanger includes Three port link blocks, i.e. series signals input port module, series signals output port module and audio signal input end Mouth mold block, the audio signal input end mouth mold block connects the audio control signal output port of microphone stand, institute by cable State signal primary input interface or upper level T-shaped company of the series signals input port module by cable connection conference host The series signals output port module of device is connect, the series signals output port module is by cable connection conference host Signal auxiliary input interface or the series signals output end of next stage t connector enter module.
3. a kind of new digital conference system according to claim 2, it is characterised in that:The series signals input Mouth mold block, series signals output port module and audio signal input end mouth mold block are RJ45 Wiring port modules.
4. a kind of new digital conference system according to claim 1, it is characterised in that:The microphone base includes For audio and the dsp chip of noise reduction process, for controlling microphone and receiving the MCU processors of control signal, the dsp chip By A/D signal adapters, DSP signal processors and D/A signal adapters are constituted, the signal input of the DSP signal processors End connection A/D signal adapters, signal output part connection D/A signal adapters, the microphone by A/D signal adapters with DSP signal processors are connected, and the output end of the D/A signal adapters is defeated through operational amplification circuit module and audio control signal Exit port is connected, the control signal connection audio control signal output port of the MCU processors, and controlled output port connects DSP signal processors are connect, the audio control signal output port is connected by cable with T-shaped exchanger.
CN201710039694.3A 2017-01-19 2017-01-19 A kind of new digital conference system Pending CN106789133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710039694.3A CN106789133A (en) 2017-01-19 2017-01-19 A kind of new digital conference system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710039694.3A CN106789133A (en) 2017-01-19 2017-01-19 A kind of new digital conference system

Publications (1)

Publication Number Publication Date
CN106789133A true CN106789133A (en) 2017-05-31

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CN201710039694.3A Pending CN106789133A (en) 2017-01-19 2017-01-19 A kind of new digital conference system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109803059A (en) * 2018-12-17 2019-05-24 百度在线网络技术(北京)有限公司 Audio-frequency processing method and device
CN110191305A (en) * 2019-05-07 2019-08-30 广州市迪士普音响科技有限公司 A kind of artificial intelligence digital conference system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016115863A1 (en) * 2015-01-22 2016-07-28 中兴通讯股份有限公司 Digital microphone
CN205566625U (en) * 2016-04-06 2016-09-07 广州畅世智能科技有限公司 Digit conference system
CN206524845U (en) * 2017-01-19 2017-09-26 广州国光音频科技有限公司 A kind of new digital conference system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016115863A1 (en) * 2015-01-22 2016-07-28 中兴通讯股份有限公司 Digital microphone
CN205566625U (en) * 2016-04-06 2016-09-07 广州畅世智能科技有限公司 Digit conference system
CN206524845U (en) * 2017-01-19 2017-09-26 广州国光音频科技有限公司 A kind of new digital conference system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109803059A (en) * 2018-12-17 2019-05-24 百度在线网络技术(北京)有限公司 Audio-frequency processing method and device
CN110191305A (en) * 2019-05-07 2019-08-30 广州市迪士普音响科技有限公司 A kind of artificial intelligence digital conference system

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SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20170829

Address after: Huadu District, Guangdong city of Guangzhou province Xinya Street 510000 Jinghu Road No. 8 H5 three B-01

Applicant after: Guangzhou Guoguang Audio Technology Co., Ltd.

Applicant after: Guoguang Electric Co., Ltd.

Address before: Huadu District, Guangdong city of Guangzhou province Xinya Street 510000 Jinghu Road No. 8 Building No. 1 West two administrative

Applicant before: Guangzhou Huadu Guoguang Audio Technology Center (general partnership)

TA01 Transfer of patent application right