CN203352611U - Wireless conference device - Google Patents
Wireless conference device Download PDFInfo
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- CN203352611U CN203352611U CN 201320440898 CN201320440898U CN203352611U CN 203352611 U CN203352611 U CN 203352611U CN 201320440898 CN201320440898 CN 201320440898 CN 201320440898 U CN201320440898 U CN 201320440898U CN 203352611 U CN203352611 U CN 203352611U
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- nonvoting delegate
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Abstract
A wireless conference device comprises a reception main control computer, a chairman unit used by a conference host to control meeting speeches, and at least one nonvoting delegate unit used by a participant to speak; the chairman unit and the nonvoting delegate units respectively use digital RF to carry out control information transmission with the reception main control computer, and use a UHF high frequency channel to carry out voice information transmission with the reception main control computer. The wireless conference device employs a whole new transmission and control mode in which simulation and digital methods are combined, so one chairman unit and four delegate units can be simultaneously opened in maximum. In an effective transmission scope, the number of delegate units of the system can be not limited. Furthermore, the wireless conference device still employs simulation frequency modulation mode in audio frequency transmission process, thereby saving radio frequency bandwidth, and hearing time-delay is not caused.
Description
Technical field
The utility model relates to a kind of device for conference system, particularly a kind of wireless session device that uses the wireless technology transmission information.
Background technology
The device that existing conference system is used mainly contains wired connection and two kinds of modes of wireless connections.
In the wired connection mode, for the equipment of speech and the microphone of conference moderator etc., the equipment for speech all needs to be connected to control appliance by cable each participant's microphones etc., conference moderator is controlled the UNICOM for the equipment of speech such as each participant's microphone by control appliance, thereby can determine which participant can make a speech.The wired connection mode need be disposed in Conference Room a large amount of cables on the one hand, on the other hand, control appliance also needs configuration and the joint of participant's number equivalent amount just can guarantee that each participant has the chance of speech, so just make the connection switching of control appliance loaded down with trivial details, frequent, easily cause connecting fault.
Along with RF(Radio Frequency radio-frequency technique) development, Digital RF, utilize Digital Signal Processing (DSP) to replace the technology of analog to obtain very big development, for example the WIFI technology, that is to say that WLAN (IEEE802.11) technology has also obtained extensive application in conference system.
In the wireless connections mode, each participant's microphones etc. can be connected to control appliance for the equipment of speech and the microphone of conference moderator etc. by the WIFI module for the equipment of making a speech, so just saved the work of disposing cable, and avoided cable to connect the risk of fault, as just providing a kind of, Chinese patent CN101364886B transmits voice by WIFI, the wireless session device of video information, Chinese patent CN101827245A also provides a kind of wireless session device and data transmission method thereof, but in above-mentioned 2 parts of patent documentations, audio-frequency information all needs to be processed in advance analog signal conversion is sent after digital signal again, transmission for audio-frequency information just need take wider radio frequency band like this, and Digital Modulation easily produces spurious signal, sound easily is with time delay, can make in conference process and sound not nature.
The utility model content
The utility model provides a kind of wireless session device, to reduce or to avoid problem noted earlier.
For addressing the above problem, the utility model proposes a kind of wireless session device, described wireless session device comprises that receives a main control computer, and of being connected with described reception main control computer respectively controls chairman unit machine and at least one nonvoting delegate's unit machine for participant's speech of conference speech for the meeting presider;
Described reception main control computer is provided with a master control controller, the master control numeral RF unit be connected with described master control controller respectively, 5 UHF tuners of being controlled by PLL,
Described nonvoting delegate's unit machine comprises that attending as a nonvoting delegate microphone, one for one attends as a nonvoting delegate microphone switch key and nonvoting delegate's controller, what with described nonvoting delegate's controller, be connected respectively attends as a nonvoting delegate digital RF unit and describedly attends as a nonvoting delegate microphone audio and process and the analog communication unit of transfers voice information for gathering, described analog communication unit comprises a UHF tuner of being controlled by PLL
Described chairman unit machine comprises chairman's microphone, chairman's microphone switch key and a chairman control device, the chairman that is connected with described chairman control device respectively numeral RF unit and for gathering described chairman's microphone audio and processing and the analog communication unit of transfers voice information, described analog communication unit comprises a UHF tuner of being controlled by PLL.
Preferably, described chairman unit machine further comprise one with described chairman control device, be connected for closing the zero clearing button of all nonvoting delegate's unit machine microphones of having opened.
Preferably, described reception main control computer further comprises a display screen be connected with described master control controller.
A kind of wireless session device provided by the utility model, adopt simulation and brand-new transmission and control mode that numeral combines, can open 1 chairman unit at most, 4 representative units simultaneously.In effective transmission range, the representative unit quantity of system can be unrestricted.More crucial, system response time is not subject to the how many impact of element number; A kind of wireless session device provided by the utility model, when audio transmission, still adopts the analog fm mode, saves radio frequency bandwidth.
The accompanying drawing explanation
The following drawings only is intended to the utility model is done and schematically illustrated and explain, does not limit scope of the present utility model.
Fig. 1 is the structural representation according to a kind of wireless session device of a specific embodiment of the present utility model;
The structural representation that Fig. 2 is the chairman unit machine shown in Fig. 1;
The structural representation that Fig. 3 is the nonvoting delegate's unit machine shown in Fig. 1.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast accompanying drawing embodiment of the present utility model is described.Wherein, identical parts adopt identical label.
Below describe structure and the principle thereof according to a kind of wireless session device of the present utility model in detail.
Fig. 1 is the structural representation according to a kind of wireless session device of a specific embodiment of the present utility model; The structural representation that Fig. 2 is the chairman unit machine shown in Fig. 1; The structural representation that Fig. 3 is the nonvoting delegate's unit machine shown in Fig. 1.Shown in Fig. 1-3, a kind of wireless session device provided by the utility model, described wireless session device comprises that receives a main control computer 1, and of being connected with described reception main control computer 1 respectively controls chairman unit machine 3 and at least one nonvoting delegate's unit machine 2 for participant's speech of conference speech for the meeting presider;
Described reception main control computer 1 is provided with a master control controller 11,12,5 of unit of the master control numeral RF UHF tuner 13 of being controlled by PLL be connected with described master control controller 11 respectively,
Described nonvoting delegate's unit machine 2 comprises that attending as a nonvoting delegate microphone 21, one for one attends as a nonvoting delegate microphone switch key 22 and nonvoting delegate's controller 23, what with described nonvoting delegate's controller 23, be connected respectively attends as a nonvoting delegate digital RF unit 24 and describedly attends as a nonvoting delegate microphone 21 audio frequency and process and the analog communication unit 25 of transfers voice information for gathering, described analog communication unit 25 comprises a UHF tuner 251 of being controlled by PLL
Described chairman unit machine 3 comprises chairman's microphone 31, chairman's microphone switch key 32 and a chairman control device 33, the chairman that is connected with described chairman control device 33 respectively numeral RF unit 34 and for gathering described chairman's microphone 31 audio frequency and processing and the analog communication unit 35 of transfers voice information, described analog communication unit comprises a UHF tuner 351 of being controlled by PLL.
Described chairman unit machine 3 can carry out the control information transmission by digital RF and described reception main control computer 1 respectively with described nonvoting delegate's unit machine 2, and carries out the voice messaging transmission by UHF hf channel and described reception main control computer 1.
Utilizing Digital RF to carry out the control information transmission can be so that the described reception main control computer 1 in the wireless session device that the utility model provides, the control information transfer member of described chairman unit machine 3 and described nonvoting delegate's unit machine 2 can be used ripe business nest plate to complete, and has reduced the production cost of described wireless session device.
Described chairman unit machine 3 and described nonvoting delegate's unit machine 2 carry out the voice messaging transmission by UHF hf channel and described reception main control computer 1.So just make the wireless session device when audio transmission, still adopt the analog fm mode, save radio frequency bandwidth, and never produce sense of hearing time delay, the warm nature of sound.
Described reception main control computer 1 be provided with 5 UHF tuners 351 of being controlled by PLL can receive respectively 5 tunnels for transmitting voice information FM signal, described FM signal can be respectively the chairman designated lane of 1 tunnel for described chairman unit machine 3 communications, and other 4 tunnels are for the passage that represents of described nonvoting delegate's unit machine 2.Described chairman's designated lane receive frequency range can be 740MHz---765MHz; Describedly represent that the passage receive frequency range can be 765MHz---790MHz, in addition, in described chairman's designated lane and the described receive frequency range that represents passage, a plurality of frequencies can be set, each frequency is all with the 250K stepping.
PLL (Phase Locked Loop), that is to say phase-locked loop or phase-locked loop, the UHF tuner of its control can ensure that the audio-frequency information of the UHF hf channel transmission that described reception main control computer 1 can receive it carries out good demodulation, ensures the delivery quality of audio-frequency information.Described chairman's designated lane is the speech communication with described reception main control computer 1 for described chairman unit machine 3, so just can make described chairman unit machine 3 have the priority of conference speech, and needn't with the UHF hf channel of described nonvoting delegate's unit machine 2 common transmitted voice messagings.4 tunnels make the presider can select as the case may be current suitable conference model for the passage that represents of described nonvoting delegate's unit machine 2, arrange flexibly the meeting process.For example:
Unrestricted model: maximum speech number can be established, and minimum is 1, is 4 to the maximum.When described nonvoting delegate's unit machine 2 of opening microphone reaches the maximum speech number of setting, remaining described nonvoting delegate's unit machine 2 just can not be opened Mike.
The first in first out pattern: maximum speech number can be established, and minimum is 1, is 4 to the maximum.When the representative of opening microphone reaches the maximum speech number of setting, next there is again the representative application to open microphone, can close the representative of before opening the earliest microphone, then this microphone is opened.Entering the earliest described nonvoting delegate's unit machine 2 of opening microphone state, rotate.
Chairman's proprietary mode: on the basis of above two kinds of patterns, if chairman's proprietary mode is enabled, after described chairman unit machine 3 is opened microphone, all described nonvoting delegate's unit machines 2 can not be opened microphone.After described chairman unit machine 3 cuts out, described nonvoting delegate's unit machine 2 just can carry out normal application and be made a speech.
Simultaneously, the utility model also makes in effective transmission range, and described nonvoting delegate's unit machine 2 quantity of described wireless session device are unrestricted.More crucial, described wireless session device response speed is not subject to the impact of described nonvoting delegate's unit machine 2 quantities.
Described chairman's designated lane receive frequency range is 740MHz---765MHz; Describedly represent that the passage receive frequency range is 765MHz---790MHz, in described chairman's designated lane and the described receive frequency range that represents passage, can be provided with a plurality of frequencies, each frequency is all with the 250K stepping.Described chairman's designated lane and describedly represent that passage respectively accounts for one section 25M spectral bandwidth, in every section spectral bandwidth, have 100 frequencies with the 250KHz stepping.Arrange and automatically select communication function thereby make described reception main control computer can have enough frequency resources, that is to say when mounted, the engineering staff can utilize this function, conveniently obtains current clean frequency and also deposits to described reception main control computer 1.After this, described nonvoting delegate's unit machine 2 that microphone is opened in application distributes frequency automatically by described reception main control computer 1, need not manually arrange one by one again.
Certainly, it should be appreciated by those skilled in the art that UHF hf channel frequency range also can be adjusted according to the concrete condition of customer requirements or the use of meeting-place radio band.
Described master control controller 11 is for controlling the information communication of described master control numeral RF unit 12 and 5 described UHF tuners 13 of being controlled by PLL.
The described microphone 21 of attending as a nonvoting delegate is for gathering meeting nonvoting delegate's voice messaging, the described microphone switch key 22 of attending as a nonvoting delegate is for controlling described operating state of attending as a nonvoting delegate microphone 21, described nonvoting delegate's controller 23 can be stored the self ID of described nonvoting delegate's unit machine No. 2 so that control and management, the described digital RF unit 24 of attending as a nonvoting delegate is for utilizing Digital RF to carry out the control information transmission, therefore it can use ripe business nest plate to complete, and has reduced the production cost of described wireless session device.
The described UHF tuner 251 of the Frequency Adjustable that PLL controls can guarantee that the audio frequency of the described microphone 21 that collects in described analog communication unit 25 delivers to described reception main control computer 1 after modulated, control so the coordinating of described UHF tuner 13 of Frequency Adjustable by the PLL with described reception main control computer 1, can ensure the quality that audio-frequency information transmits.
Described chairman's microphone 31 is for gathering chairman's voice messaging, described chairman's microphone switch key 32 is for controlling the operating state of described chairman's microphone 31, described chairman numeral RF unit 34 is for utilizing Digital RF to carry out the control information transmission, therefore it can use ripe business nest plate to complete, and has reduced the production cost of described wireless session device.
The described UHF tuner 351 of the Frequency Adjustable that PLL controls can guarantee that the audio frequency of the described microphone 31 that collects in described analog communication unit 35 delivers to described reception main control computer 1 after modulated, control so the coordinating of described UHF tuner 13 of Frequency Adjustable by the PLL with described reception main control computer 1, can ensure the quality that audio-frequency information transmits.
In a preferred embodiment, described chairman unit machine 3 further comprises a zero clearing button 36 for the microphone of cutting out all described nonvoting delegate's unit machines 1 of having opened be connected with described chairman control device 33.When this button is pressed, can send closing information to all described nonvoting delegate's unit machines 2 of having opened described nonvoting delegate unit microphone 21 by described reception main control computer 1, thereby the microphone of these described nonvoting delegate's unit machines 21 cuts out.
In a preferred embodiment, described reception main control computer 1 further comprises a display screen 14 be connected with described master control controller 11.By described display screen 14, can observe very easily quantity and the state of described nonvoting delegate's unit machine 2 of described reception main control computer connection, thereby can facilitate administrative staff to be controlled described wireless session device.
A kind of wireless session device provided by the utility model, adopt simulation and brand-new transmission and control mode that numeral combines, can open 1 chairman unit at most, 4 representative units simultaneously.In effective transmission range, the representative unit quantity of system can be unrestricted.More crucial, system response time is not subject to the how many impact of element number; A kind of wireless session device provided by the utility model, when audio transmission, still adopts the analog fm mode, saves radio frequency bandwidth.
Although it will be appreciated by those skilled in the art that the utility model is that mode according to a plurality of embodiment is described, not each embodiment only comprises an independently technical scheme.In specification, narration like this is only for the sake of clarity; those skilled in the art should make specification as a wholely to be understood, and regard technical scheme related in each embodiment as the mode that can mutually be combined into different embodiment understand protection range of the present utility model.
The foregoing is only the schematic embodiment of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of doing under the prerequisite that does not break away from design of the present utility model and principle, modification and combination, all should belong to the scope that the utility model is protected.
Claims (3)
1. a wireless session device, it is characterized in that, described wireless session device comprises that receives a main control computer, and of being connected with described reception main control computer respectively controls chairman unit machine and at least one nonvoting delegate's unit machine for participant's speech of conference speech for the meeting presider;
Described reception main control computer is provided with a master control controller, the master control numeral RF unit be connected with described master control controller respectively, 5 UHF tuners of being controlled by PLL,
Described nonvoting delegate's unit machine comprises that attending as a nonvoting delegate microphone, one for one attends as a nonvoting delegate microphone switch key and nonvoting delegate's controller, what with described nonvoting delegate's controller, be connected respectively attends as a nonvoting delegate digital RF unit and describedly attends as a nonvoting delegate microphone audio and process and the analog communication unit of transfers voice information for gathering, described analog communication unit comprises a UHF tuner of being controlled by PLL
Described chairman unit machine comprises chairman's microphone, chairman's microphone switch key and a chairman control device, the chairman that is connected with described chairman control device respectively numeral RF unit and for gathering described chairman's microphone audio and processing and the analog communication unit of transfers voice information, described analog communication unit comprises a UHF tuner of being controlled by PLL.
2. wireless session device according to claim 1, is characterized in that, described chairman unit machine further comprise one with described chairman control device, be connected for closing the zero clearing button of all nonvoting delegate's unit machine microphones of having opened.
3. wireless session device according to claim 1, is characterized in that, described reception main control computer further comprises a display screen be connected with described master control controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320440898 CN203352611U (en) | 2013-07-23 | 2013-07-23 | Wireless conference device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320440898 CN203352611U (en) | 2013-07-23 | 2013-07-23 | Wireless conference device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352611U true CN203352611U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320440898 Expired - Fee Related CN203352611U (en) | 2013-07-23 | 2013-07-23 | Wireless conference device |
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| Country | Link |
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| CN (1) | CN203352611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052610A (en) * | 2014-05-19 | 2014-09-17 | 国家电网公司 | Informatization intelligent conference dispatching management device and using method |
| CN111726142A (en) * | 2020-07-24 | 2020-09-29 | 方图智能(深圳)科技集团股份有限公司 | Wireless conference system for large conference place and control method of conference system |
-
2013
- 2013-07-23 CN CN 201320440898 patent/CN203352611U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052610A (en) * | 2014-05-19 | 2014-09-17 | 国家电网公司 | Informatization intelligent conference dispatching management device and using method |
| CN111726142A (en) * | 2020-07-24 | 2020-09-29 | 方图智能(深圳)科技集团股份有限公司 | Wireless conference system for large conference place and control method of conference system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20150723 |
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| EXPY | Termination of patent right or utility model |