CN1976374B - Radio digital conference system - Google Patents
Radio digital conference system Download PDFInfo
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- CN1976374B CN1976374B CN2006101551115A CN200610155111A CN1976374B CN 1976374 B CN1976374 B CN 1976374B CN 2006101551115 A CN2006101551115 A CN 2006101551115A CN 200610155111 A CN200610155111 A CN 200610155111A CN 1976374 B CN1976374 B CN 1976374B
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Abstract
A radio digital conference system is prepared as setting up at least one extension telephone and host as well as chairman telephone for communication through radio wave; forming said telephones by AVR microprocessor, voice coding circuit, 2.4G transceiving circuit, audio receiving module, volume control circuit, digital receiving circuit, amplifier output circuit, etc; connecting audio receiving module to volume control circuit being connected with amplifier output circuit; connecting audio and data circuits to 2.4G output amplifier-distribution circuit separately.
Description
Technical field
The present invention relates to the conference system of meeting special use, relate in particular to a kind of radio digital conference system, it is for adopting advanced full-digital radio technology, and digital voice transmission technology uses in conference system, is fit to the meeting of different occasions.
Background technology
Along with improving constantly of China's international status and scientific research level, various large-scale international conferences are held in China more and more, and domestic various meetings have also proposed higher new demand to conference system.More existing on-the-spot meeting systemic-functions are simpler, use inconvenience, have bigger limitation.It is extremely urgent to design cover conference system simple and convenient, that function is complete.Simultaneously, a lot of Conference Rooms are large-scale, decorate the layout fineness, some conference systems based on wireline communication network can bring undoubtedly installation work numerous and diverse, to the change of meeting-place existing facility and to the influence of meeting-place outward appearance.And wireless conference system adopted can be in the local scope digital network of transmitting information wirelessly, under the prerequisite of not changing existing facility, send meeting information to participant accurately, fast and safely.Therefore, the design of wireless conference system equipment has obtained the extensive care of domestic and international association area manufacturer, estimates that in the near future wireless conference system becomes the main flow of conference system from now on the existing wired conference system of full substitution.
Foreign vendor starts to walk early to the research of wireless conference system, and more famous manufacturer such as Bayerdynamic etc. have total solution to provide, but price are very expensive.Domestic manufacturer of doing wireless conference system is few, and product is immature.Estimate that domestic many meeting-place can be equipped with or the conference system of upgrading in the coming years, so wireless conference system have good market prospects.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art, in order to overcome the not enough problem that wired conference system and wireless simulation conference system exist, the invention provides a kind of functional strong, simple to operate, easy for installation, be applicable to all kinds of middle-size and small-size meetings, low cost, low-power consumption, a kind of radio digital conference system that mobility is good, extensibility is strong.It is by adopting AVR microprocessor CPU processing center, and advanced full-digital radio technology and digital voice transmission technology are realized purpose of the present invention.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of radio digital conference system, comprise by radio wave and set up the main frame of at least one extension set of communication, the use that matches and chairman's machine that the selectivity use matches, the measure of taking comprises: extension set, main frame and chairman's machine all include AVR microprocessor and matched with it speech coding circuit and 2.4G transmission circuit; Main frame and chairman's machine connect electric power management circuit separately respectively;
Extension set also comprises and the joining LCD indicating circuit of described AVR microprocessor, and key circuit is with the joining MIC voice control circuit of speech coding circuit;
Main frame also comprises and the joining data receiver circuit of AVR microprocessor, with the corresponding audio frequency receiver module of extension set number, data transmission circuit, volume control circuit, eight road level displaing circuits, volume indicating circuit, button, mixer circuit; The audio frequency receiver module links through mixer circuit and volume control circuit; Volume control circuit links and is connected to amplification output circuit; Audio frequency receiver module and data receiver circuit are connected with the 2.4G input respectively and amplify and distributor circuit; The data transmission circuit then is connected with the 2.4GHz amplification output circuit;
Chairman's machine also comprises and the joining LCD indicating circuit of described AVR microprocessor, key circuit, and clock circuit is with the joining MIC voice control circuit of speech coding circuit.
The measure of taking also comprises:
Above-mentioned extension set is at least seven, and the main frame that uses that matches of setting up airwave communication is one; With the corresponding audio frequency receiver module of extension set number be seven; It is seven that corresponding extension set is set up the channel quantity of communicating by letter with the main frame radio wave; Above-mentioned MIC voice control circuit triggers connection by spokesman's sound control.
Above-mentioned extension set is at least seven, and main frame and the chairman's machine that uses that match of setting up airwave communication is one; With the corresponding audio frequency receiver module of extension set number be seven; It is seven that corresponding extension set is set up the channel quantity of communicating by letter with the main frame radio wave; Above-mentioned MIC voice control circuit triggers connection by spokesman's sound control.
Set up the discussion pattern that changes first in first out automatically between above-mentioned main frame and the extension set; Main frame is in receiving mode, and above-mentioned extension set all sends request signal to main frame three times continuously at the most by the 2.4GHz radio wave; Main frame receives the extension set request signal by the 2.4GHz radio wave, the inquiry idle channels, and pass through the loopback of 2.4GHz radio wave and give the request extension set.
Above-mentioned main frame has idle channels through inquiry, and main frame is asked extension set by the loopback of 2.4GHz radio wave to this, and enables the audio frequency receiver module of this channel.
Above-mentioned main frame searches the extension set that request is at first come in earlier, and cuts out this extension set through inquiring about the absorb of all channels, main frame is asked extension set by the loopback of 2.4GHz radio wave to this then, extension set changes channel, opening voice module, and voice signal; Sound mixes the wired output in back by main frame; So far connect and finish, and enable the audio frequency receiver module of this channel.
Above-mentioned main frame connects chairman's machine and identification automatically, gives chairman machine control; Main frame has the display system volume, extension set operating position and control setting function; Chairman's facility have the right of control extension set speech; Earlier by chairman's machine mode of operation is set, a kind of is the discussion pattern of first in first out, and another kind is the application pattern.
Above-mentioned discussion pattern is that main frame is in receiving mode, and above-mentioned extension set all sends request signal to main frame three times continuously at the most by the 2.4GHz radio wave; Main frame receives the extension set request signal by the 2.4GHz radio wave, the inquiry idle channels, and pass through the loopback of 2.4GHz radio wave and give the request extension set; Main frame has idle channels through inquiry, and main frame is asked extension set by the loopback of 2.4GHz radio wave to this, and enables the audio frequency receiver module of this channel.
Above-mentioned application pattern is that extension set is when host request connects spokesman's sound, again by host notification chairman machine, chairman's machine is selected an extension set request of agreement, and chairman's machine cuts out an extension set that is using through control earlier, and guarantees that the extension set of asking connects the sound of going up the spokesman.
Compared with prior art, the present invention is by adopting AVR microprocessor CPU processing center, advanced full-digital radio technology and digital voice transmission technology, the extension set of formation, main frame and chairman's machine all include AVR microprocessor and matched with it speech coding circuit and 2.4G transmission circuit; Main frame and chairman's machine connect electric power management circuit separately respectively; Extension set also comprises and the joining LCD indicating circuit of described AVR microprocessor, and key circuit is with the joining MIC voice control circuit of speech coding circuit; Main frame also comprises and the joining data receiver circuit of AVR microprocessor, with the corresponding audio frequency receiver module of extension set number, data transmission circuit, volume control circuit, eight road level displaing circuits, volume indicating circuit, button, mixer circuit; The audio frequency receiver module links through mixer circuit and volume control circuit; Volume control circuit links and is connected to amplification output circuit; Audio frequency receiver module and data receiver circuit are connected with the 2.4G input respectively and amplify and distributor circuit; The data transmission circuit then is connected with the 2.4GHz amplification output circuit; Chairman's machine also comprises and the joining LCD indicating circuit of described AVR microprocessor, key circuit, and clock circuit is with the joining MIC voice control circuit of speech coding circuit.Main frame 7 tunnel speeches simultaneously also contain chairman's machine, and chairman's machine can be controlled whole system at any time, and conferencing also can be versatile and flexible, can use simultaneously by three main frames at most; Antijamming capability is strong, when disturbing appears in certain extension set, reconnects after the shutdown, promptly skips the interference source frequency, can solve; Do simply need not adjust, also all shutdown of all extension sets of Shutdown Hosts are managed lighter.Thereby propose the wireless conference system model of a low cost, low-power consumption, mobility is good, extensibility is strong simplification, it is applicable to all kinds of middle-size and small-size meetings, in order to substitute existing wired conference system.
Description of drawings
Fig. 1 is the square frame principle schematic diagram of embodiment of the invention extension set;
Fig. 2 is the square frame principle schematic diagram of embodiment of the invention main frame sound intermediate frequency receiver module;
Fig. 3 is for being embodiment of the invention main frame square frame principle schematic diagram;
Fig. 4 is the square frame principle schematic diagram of embodiment of the invention chairman machine;
Fig. 5 is an embodiment of the invention square frame principle schematic diagram.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Extremely shown in Figure 5 as Fig. 1, a kind of radio digital conference system, comprise by radio wave and set up the main frame of at least one extension set of communication, the use that matches and chairman's machine that the selectivity use matches, extension set, main frame and chairman's machine all include AVR microprocessor and matched with it speech coding circuit and 2.4G transmission circuit; Main frame and chairman's machine connect electric power management circuit separately respectively; Extension set also comprises and the joining LCD indicating circuit of described AVR microprocessor, and key circuit is with the joining MIC voice control circuit of speech coding circuit; Main frame also comprises and the joining data receiver circuit of AVR microprocessor, with the corresponding audio frequency receiver module of extension set number, data transmission circuit, volume control circuit, eight road level displaing circuits, volume indicating circuit, button, mixer circuit; The audio frequency receiver module links through mixer circuit and volume control circuit; Volume control circuit links and is connected to amplification output circuit; Audio frequency receiver module and data receiver circuit are connected with the 2.4G input respectively and amplify and distributor circuit; The data transmission circuit then is connected with the 2.4GHz amplification output circuit; Chairman's machine also comprises and the joining LCD indicating circuit of described AVR microprocessor, key circuit, and clock circuit is with the joining MIC voice control circuit of speech coding circuit.
The embodiment of the invention has two kinds of working methods:
First kind of working method: above-mentioned extension set is at least seven, and the main frame that uses that matches of setting up airwave communication is one; With the corresponding audio frequency receiver module of extension set number be seven; It is seven that corresponding extension set is set up the channel quantity of communicating by letter with the main frame radio wave; Above-mentioned MIC voice control circuit triggers connection by spokesman's sound control.
Second kind of working method: above-mentioned extension set is at least seven, and main frame and the chairman's machine that uses that match of setting up airwave communication is one; With the corresponding audio frequency receiver module of extension set number be seven; It is seven that corresponding extension set is set up the channel quantity of communicating by letter with the main frame radio wave; Above-mentioned MIC voice control circuit triggers connection by spokesman's sound control.
In the above-mentioned working method, set up the discussion pattern that changes first in first out automatically between main frame and the extension set; Main frame is in receiving mode, and above-mentioned extension set all sends request signal to main frame three times continuously at the most by the 2.4GHz radio wave; Main frame receives the extension set request signal by the 2.4GHz radio wave, the inquiry idle channels, and pass through the loopback of 2.4GHz radio wave and give the request extension set.Main frame has idle channels through inquiry, and main frame is asked extension set by the loopback of 2.4GHz radio wave to this, and enables the audio frequency receiver module of this channel.Main frame searches the extension set that request is at first come in earlier, and cuts out this extension set through inquiring about the absorb of all channels, and main frame is asked extension set by the loopback of 2.4GHz radio wave to this then, and extension set changes channel, opening voice module, and voice signal; Sound mixes the wired output in back by main frame; So far connect and finish, and enable the audio frequency receiver module of this channel.
In second kind of above-mentioned working method, main frame connects chairman's machine and identification automatically, gives chairman machine control; Main frame has the display system volume, extension set operating position and control setting function; Chairman's facility have the right of control extension set speech; Earlier by chairman's machine mode of operation is set, a kind of is the discussion pattern of first in first out, and another kind is the application pattern.Discussion pattern wherein is that main frame is in receiving mode, and above-mentioned extension set all sends request signal to main frame three times continuously at the most by the 2.4GHz radio wave; Main frame receives the extension set request signal by the 2.4GHz radio wave, the inquiry idle channels, and pass through the loopback of 2.4GHz radio wave and give the request extension set; Main frame has idle channels through inquiry, and main frame is asked extension set by the loopback of 2.4GHz radio wave to this, and enables the audio frequency receiver module of this channel.The application pattern is that extension set is when host request connects spokesman's sound, again by host notification chairman machine, chairman's machine is selected an extension set request of agreement, and chairman's machine cuts out an extension set that is using through control earlier, and guarantees that the extension set of asking connects the sound of going up the spokesman.
Describe first kind of working method in conjunction with Fig. 5: under no chairman's machine, also just system of the present invention has only main frame and extension set, one in main frame, and extension set quantity is not limit, and system changes discussion pattern (first in first out pattern) automatically over to.Main frame is in receiving mode, and the extension set that is in the transmission request signal will resend request signal once more as there not being the backhaul signals of receiving main frame within a certain period of time, after continuous three request failures, and automatic turn-off request signal.Pass through the 2.4GHz radio wave to host request by extension set, can have a plurality of extension sets to ask simultaneously, wait for the echo of main frame then.After main frame is received request signal, the inquiry idle channels, if any, then give the request extension set by the radio wave loopback with the spokesman's that agrees sound, and enable the receiver module of this channel, and the MIC voice control circuit in the extension set of guaranteeing to ask connects the sound of going up the spokesman.As not having, just all seven channels are used, search the extension set that request is at first come in earlier, and close this extension set, give the request extension set by the radio wave loopback then.After extension set received the signal of main frame loopback, extension set changed channel, opening voice module, beginning voice signal.Sound mixes the wired output in back by main frame.So far connect and finish.All extension sets all are same connection procedures.
After meeting adjourned, as long as Shutdown Hosts, all extension sets all can shut down automatically.
In conjunction with Fig. 5 second kind of working method described: chairman's machine participation work is arranged, main frame, each one in chairman's machine, extension set quantity is not limit.Process is as follows: chairman's machine connected upward main frame before this, and main frame can be discerned automatically, gives chairman machine control then, and main frame has the display system volume, extension set operating position and control setting function.The right whether chairman's facility have the control extension set can make a speech; Chairman's machine is discerned automatically to the signal from the transmission claimant of extension set equally, has only agreement, ability is given the request extension set with the spokesman's of agreement sound by the radio wave loopback, and enable the receiver module of this channel, and the MIC voice control circuit in the extension set of guaranteeing to ask connects the sound of going up the spokesman.Usually earlier by chairman's machine mode of operation is set, a kind of is the discussion pattern, and connection procedure is with first kind of working method of present embodiment; The another kind pattern is the application pattern, and different is: when host request connected speech, again by host notification chairman machine, whether request agreed that as agreement, then extension set can connect speech to extension set, otherwise extension set will cut out automatically.After channel is full, must the control of chairman's machine close an extension set that is using, on the extension set of request could connect.
Characteristics of the present invention:
1. adopt advanced full-digital radio technology, digital voice transmission technology.
2. adopt the open 2.4GHz frequency range in the whole world, be not subjected to any legal restrictions, need not special application and approval procedure, it is unblocked that product is used in the whole world
3. the employing full-digital circuit only needs to change software, just can realize other function, also makes production, and debugging brings great convenience.
4. can join numerous extension set, distribute frequency automatically, support 7 people to talk simultaneously.
5. the main frame use that can complement one another is maximumly supported three main frames, just supports 21 people to talk simultaneously.
6. good confidentiality, strong interference immunity.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not depart from the scope of the present invention.
Claims (3)
1. a radio digital conference system comprises by radio wave and sets up the main frame of at least one extension set of communication, the use that matches and chairman's machine that the selectivity use matches, and it is characterized in that:
Described extension set, main frame and chairman's machine all include AVR microprocessor and matched with it speech coding circuit and 2.4GHz transmission circuit; Main frame and chairman's machine connect electric power management circuit separately respectively;
Described extension set also comprises and the joining LCD indicating circuit of described AVR microprocessor, and key circuit is with the joining MIC voice control circuit of speech coding circuit;
Described main frame also comprises and the joining data receiver circuit of described AVR microprocessor, with the corresponding audio frequency receiver module of extension set number, data transmission circuit, volume control circuit, eight road level displaing circuits, volume indicating circuit, button, mixer circuit; Described audio frequency receiver module links through mixer circuit and volume control circuit; Volume control circuit links and is connected to amplification output circuit; Described audio frequency receiver module and data receiver circuit are connected with the 2.4GHz input respectively and amplify and distributor circuit; Described data transmission circuit then is connected with the 2.4GHz amplification output circuit;
Described chairman's machine also comprises and the joining LCD indicating circuit of described AVR microprocessor, key circuit, and clock circuit is with the joining MIC voice control circuit of speech coding circuit; Described MIC voice control circuit triggers connection by spokesman's sound control;
Chairman's machine participation work is arranged, and described main frame connects chairman's machine and identification automatically, gives chairman machine control; Main frame has the display system volume, extension set operating position and control setting function; Chairman's facility have the right of control extension set speech; Earlier by chairman's machine mode of operation is set, a kind of is the discussion pattern of first in first out, and another kind is the application pattern;
Set up the discussion pattern that changes first in first out automatically over to during no chairman's machine between described main frame and the extension set; Main frame has the display system volume, extension set operating position and control setting function;
Described discussion pattern is that main frame is in receiving mode, and described extension set all sends request signal to main frame three times continuously at the most by the 2.4GHz radio wave; Main frame receives the extension set request signal by the 2.4GHz radio wave, the inquiry idle channels, and pass through the loopback of 2.4GHz radio wave and give the request extension set; Described main frame has idle channels through inquiry, and main frame is asked extension set by the loopback of 2.4GHz radio wave to this, and enables the audio frequency receiver module of this channel; Described main frame searches the extension set that request is at first come in earlier, and cuts out this extension set through inquiring about the absorb of all channels, main frame is asked extension set by the loopback of 2.4GHz radio wave to this then, extension set changes channel, opening voice module, and voice signal; Sound mixes the wired output in back by main frame; So far connect and finish, and enable the audio frequency receiver module of this channel;
Described application pattern is that extension set is when host request connects spokesman's sound, again by host notification chairman machine, chairman's machine is selected an extension set request of agreement, and chairman's machine cuts out an extension set that is using through control earlier, and guarantees that the extension set of asking connects the sound of going up the spokesman.
2. radio digital conference system according to claim 1 is characterized in that: described extension set is seven, and the main frame that uses that matches of setting up airwave communication is one; With the corresponding audio frequency receiver module of extension set number be seven; It is seven that corresponding extension set is set up the channel quantity of communicating by letter with the main frame radio wave.
3. radio digital conference system according to claim 1 is characterized in that: described extension set is seven, and main frame and the chairman's machine that uses that match of setting up airwave communication is one; With the corresponding audio frequency receiver module of extension set number be seven; It is seven that corresponding extension set is set up the channel quantity of communicating by letter with the main frame radio wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101551115A CN1976374B (en) | 2006-12-08 | 2006-12-08 | Radio digital conference system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101551115A CN1976374B (en) | 2006-12-08 | 2006-12-08 | Radio digital conference system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1976374A CN1976374A (en) | 2007-06-06 |
| CN1976374B true CN1976374B (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101551115A Expired - Fee Related CN1976374B (en) | 2006-12-08 | 2006-12-08 | Radio digital conference system |
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| Country | Link |
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| CN (1) | CN1976374B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101364886B (en) * | 2008-09-18 | 2011-04-06 | 广州飞瑞敖电子科技有限公司 | Wireless meeting system |
| CN101964715B (en) * | 2009-07-24 | 2012-10-31 | 深圳市台电实业有限公司 | Digital conference discussion system and digital conference communication method |
Citations (3)
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|---|---|---|---|---|
| CN1255004A (en) * | 1998-11-19 | 2000-05-31 | 北京亨通电子科技开发有限公司 | Intelligent audio amplifier system for meeting |
| CN1419365A (en) * | 2002-12-26 | 2003-05-21 | 天津市联微科技有限公司 | Teacher's and student's earphone-microphone used in digial radio speech teaching system |
| CN1592212A (en) * | 2003-08-28 | 2005-03-09 | 北京鼎视通软件技术有限公司 | Terminal dynamic turn-on method based on multi-point control unit |
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2006
- 2006-12-08 CN CN2006101551115A patent/CN1976374B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255004A (en) * | 1998-11-19 | 2000-05-31 | 北京亨通电子科技开发有限公司 | Intelligent audio amplifier system for meeting |
| CN1419365A (en) * | 2002-12-26 | 2003-05-21 | 天津市联微科技有限公司 | Teacher's and student's earphone-microphone used in digial radio speech teaching system |
| CN1592212A (en) * | 2003-08-28 | 2005-03-09 | 北京鼎视通软件技术有限公司 | Terminal dynamic turn-on method based on multi-point control unit |
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| 王文钦.基于ASIC的无线会议系统设计.电子产品世界 2003.10上半月.2003,(2003.10上半月),全文. |
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| CN1976374A (en) | 2007-06-06 |
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Owner name: NINGBO SOUNDKING ELECTRONIC CO., LTD. Free format text: FORMER OWNER: WANG XIANGGUI Effective date: 20120109 |
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Effective date of registration: 20120109 Address after: 315104 Ningbo Yinzhou investment Pioneering Center integrity road 818 Patentee after: Ningbo Soundking Electronic Co., Ltd. Address before: 315104, integrity Road, Yinzhou District investment center, Ningbo, Zhejiang 818, China Patentee before: Wang Xianggui |
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