CN101217634A - A wireless video and audio communication device and system - Google Patents
A wireless video and audio communication device and system Download PDFInfo
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- CN101217634A CN101217634A CNA2007103056899A CN200710305689A CN101217634A CN 101217634 A CN101217634 A CN 101217634A CN A2007103056899 A CNA2007103056899 A CN A2007103056899A CN 200710305689 A CN200710305689 A CN 200710305689A CN 101217634 A CN101217634 A CN 101217634A
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Abstract
The invention discloses a wireless video and audio communication equipment and system. The wireless video and audio communication equipment comprises a wireless base station function module that supports multichannel work, a wireless terminal function module that supports single channel work, a video and audio unit and a multipoint management unit, thus causing the wireless video and audio communication equipment to form self-network and be convenient for field mobile communication; the equipment is internally provided with a power supply unit, thus in rugged environments of interruption of power supply, desert, etc., the equipment can supply power independently; high integration also can lead the whole equipment to be easier to be manufactured firmly and avoid dropping; besides, the equipment succeeds the functions of a traditional video conference, namely, functions of calling, conference convening, conference control, etc. The invention further provides a communication system consisting of the wireless video and audio communication equipment.
Description
Technical field
The present invention relates to the video and audio communication technical field, be specifically related to wireless video and audio communication device and system.
Background technology
Along with modern communication technology and professional development, people are changed into looking the communication requirement of audio frequency and audio frequency by initial single voice demand the demand of communication, from wired develop into wireless, realizing the trend that anywhere, anytime transmits voice, data, the video and audio communication business of looking audio frequency becomes communications field development, is that the services such as audio conferencing, tele-medicine, long-distance education of looking of principal mode are more and more used with point-to-point or multiple spot video and audio communication.But, at present, mainly be to be bearer network with the cable network, or carry out video and audio communication by means of existing wireless communication system.
As shown in Figure 1, the scheme of prior art be a kind of by wired mode (as IP, E1, PRI) or the video device and the system of the communication of wireless relay mode, during the equipment built-in MCU, can convene and look voice communication in many ways, promptly can convene one and look audio conferencing, a plurality of terminals join this and look in the audio conferencing, MCU can control the meeting field picture that each point is seen, because MCU has the function of automatic audio mixing, so when a plurality of points are talked simultaneously, system can hear to loud a few side's sound audio mixings all meeting-place automatically, and MCU also can specify a speech meeting-place certainly.When carrying out point-to-point communication or during only as conference terminal equipment, can not enabling the MCU function.The built-in MCU module of equipment disposes as required and is not essential module.
Be illustrated in figure 2 as Ah's configuration diagram of looking audio conference system of prior art, video device A1 has the built-in MCU function, A1 can convene A2/A3/A4 in the meeting, A2/A3/A4 can send to A1 with the image and the sound of local terminal, and A1 selects to watch according to user's operation or broadcasts which road image and give each terminal.
The prior art scheme depends on cable network or wireless relay links, does not have in the open air can't use under the inaccessible situation of cable network or wireless relay links;
Existing video device can not in-line power, needs to rely on external power source;
In emergency command, the disaster relief, flood fighting, fire fighting, the anti-riot incident, in depopulated zone, Gobi desert or the ruined environment of disaster area power supply unit, what need multiple spot looks audio frequency and speech communication, so that link up more accurately, also can see the situation of the other side present position simultaneously.
The user is desirable to provide the function of looking voice communication, and users such as government, army have this demand, but has just realized the communication of voice at present by the intercom mode, also far can not satisfy user's demand.
Summary of the invention
In view of this, the invention provides a kind of wireless video and audio communication device and system, can realize video and audio communication in any at any time place.
A kind of wireless video and audio communication device provided by the invention has network interface unit, looks audio unit, Main Processor Unit, and described network interface unit comprises:
Support the wireless base station functional module of multichannel work and the Radio Terminal Function module of support single channel work;
Described wireless base station functional module or Radio Terminal Function module are used for external transceive data, the signaling data that receives is delivered to Main Processor Unit, the media data that receives delivered to look audio unit, and the data of consider oneself as in the future audio unit and/or Main Processor Unit send to other communication equipments by wireless channel.
The present invention also provides a kind of wireless video and audio communication system, comprises at least two wireless video and audio communication devices, and this wireless video and audio communication device has the audio unit of looking, Main Processor Unit, and this wireless video and audio communication device also comprises:
Support the wireless base station functional module of multichannel work and the Radio Terminal Function module of support single channel work;
Described wireless base station functional module or Radio Terminal Function module are used for external transceive data, the signaling data that receives is delivered to Main Processor Unit, the media data that receives delivered to look audio unit, and the data of consider oneself as in the future audio unit and/or Main Processor Unit send to other communication equipments by wireless channel;
Wherein be provided with wireless base station functional module and multiple spot administrative unit at least one wireless video and audio communication device, this multiple spot administrative unit is used to trigger described wireless base station functional module and sends wireless signal to other communication equipments, to initiate point-to-point or point-to-multipoint delivery;
Be provided with described Radio Terminal Function module in all the other wireless video and audio communication devices.
In the technical scheme that the embodiment of the invention provides, by wireless base station functional module and/or the Radio Terminal Function module of supporting single channel work of supporting multichannel work being set in wireless video and audio communication device, looking audio unit and multiple spot administrative unit, make this wireless video and audio communication device can have network of one's own, do not need base station, the satellite link fixed, the communication that fault can not influence other nodes appears in any one point, convenient open-air moving; Dispose the GSMCDMA communication terminal module in addition and make this wireless video and audio communication device also can utilize existing wireless network to carry out open-air mobile video and audio communication, have the place of signal and general headquarters to carry out video and audio communication, perhaps data interaction with prior wireless network; Built-in power supply unit, under rugged environments such as outage, desert, equipment can oneself be powered; This equipment is built-in with memory cell, can write down the content of looking voice communication, so that filing and subsequent analysis; And this equipment has been inherited the function of traditional video conferencing, i.e. functions such as calling, conference convening, meeting control.
Description of drawings
Fig. 1 utilizes cable network for prior art and realizes the network architecture schematic diagram of video and audio communication;
Fig. 2 is Ah's configuration diagram of looking audio conference system of prior art;
The formation schematic diagram of the wireless video and audio communication device that Fig. 3 provides for the embodiment of the invention;
A kind of video and audio communication network architecture diagram that by wireless video and audio communication device constitute of Fig. 4 for providing in the embodiment of the invention.
Embodiment
For making the solution of the present invention, characteristic and advantage clearer, described below in conjunction with specific embodiment.
The present invention is for solving open-air or mobile video and audio communication problem, a kind of equipment with wireless video and audio communication function is proposed, in zone that existing wireless network covers not yet or adverse circumstances such as can't power, can comprise video and audio communications such as looking the audio conferencing business, and can form network voluntarily by some this kind equipment and carry out video and audio communication, and need not rely on existing wireless network and cable network.A kind of " terminal that moves, mobile MCU, mobile network " really is provided, and video and audio communication is realized in any at any time place.
Scheme provided by the invention is mainly used in the more abominable places of environment such as network, power supply, also can use in reasonable city of network condition or city certainly.
For making purpose of the present invention, characteristic and advantage clearer, describe the present invention below in conjunction with embodiment.
As shown in Figure 3, a kind of video and audio communication device 100 provided by the invention comprises following built-in unit:
In addition, the optional built-in unit that can dispose as required:
Multiple spot administrative unit 13 (MCU), memory cell 14, power subsystem 15, display unit 16, loud speaker 17, video camera 18 and MIC19.If optional built-in unit also is integrated in the equipment, device structure will be very compact, and convenient moving prevents vibrations.
Wireless base station functional module 11a supports multichannel work, is responsible for external transceive data, and gives units corresponding with the data delivery that receives, and signaling data is delivered to Main Processor Unit, media data is delivered to looked audio unit.And the data of consider oneself as in the future audio unit and/or Main Processor Unit send to other communication equipments by wireless channel.
In addition, wireless base station functional module 11a also receives the control command of Main Processor Unit, as whether enabling or close the base station according to control command.
Radio Terminal Function module 11b, the work of support single channel, be responsible for external transceive data, these data comprise signaling and media stream data two parts, after the Radio Terminal Function module is received these data, signaling data is delivered to Main Processor Unit, media data is delivered to looked audio unit (or media flow processing unit); The data of audio unit and/or Main Processor Unit of considering oneself as in the future send to other communication equipments by wireless channel.
Look audio unit 12, be responsible for receiving the signal of video camera and MIC input, and the signal that is received encoded, coding can adopt the relevant audio standard of looking, and as video and audio frequency technology applications and standard MPEG-4, H.264, voice compression is A-Law/m-Law 56kbps G.711, G.72816kbps etc., and the packet after will compressing sends to network interface unit, and receives the video/audio code stream that network interface unit is sent here, delivers to display unit and loud speaker after the decoding;
Because the bandwidth constraints characteristics of wireless channel, the video/audio that raw capacity is very big must could transmit in wireless system through overcompression.Therefore, must carry out squeeze operation before transmitting, and consider actual hardware realization, compression algorithm must be tried one's best simply and guaranteed performance.The embodiment of the invention adopts a kind of high performance compression standard, as MPEG-4.
Wireless channel is a kind of of complexity the most, adds the motion of portable terminal itself, makes that wireless channel is changeable and is difficult to control.In wireless channel, variety of issue all may take place, and therefore the influence that signal has interference and declines is looked in the audio transmission wireless, and channel must have high fault-tolerant ability could guarantee to receive the quality of looking audio frequency.MPEG-4 has good compatibility and opening as an international standard.When MPEG-4 provides high compression ratio, very little to the loss of data, reached the purpose that obtains best picture quality with minimal data.MPEG-4 is an open standard, has high-quality digitized video, allows creator of content that content whole process is carried out the equilibrium of quality and bandwidth, therefore is widely adopted.MPEG-4 is a kind of audio compress standard of looking that is very suitable for the wireless video and audio communication system, will be used widely.
The wireless video and audio communication device that provides in the embodiment of the invention can have network mode of one's own and carry out work, and the network interface unit of this wireless video and audio communication device has base station functions and Radio Terminal Function under this pattern;
In addition, also can utilize Radio Links such as existing 3G mobile radio communication, satellite, the network interface unit of this wireless video and audio communication device only need have Radio Terminal Function in this case.
Wireless video and audio communication device carries out work to have network mode of one's own, and as shown in Figure 4, wireless communication networks is by five wireless video and audio communication device B1, B2, and B3, B4 and B5 constitute.
Wireless video and audio communication device B1 is the communication initiator, can be used as server, when equipment B 1 begins to communicate, enable multipoint control unit MCU and start the base station functions module of this equipment, close Radio Terminal Function module and other wireless video and audio communication devices B2, B3, the wireless terminal module communication of the network interface unit of B4 and B5 is to carry out data interaction.For the bandwidth that can guarantee that multi-point needs,, support from B1 just to possess the bandwidth ability of 4 * 64K for MCU if point needs the bandwidth of 64K as the wireless video and audio communication device B1 of core to other multiple spot video and audio communications of 4;
When carrying out work to have network mode of one's own, wireless video and audio communication device can be selected suitable frequency range as the case may be.
Certainly, the base station functions module also can as field communication portable machine, provide the communication routing function, as shown in Figure 4 for other open-air communication equipments provide the communication routing function or are the communication of other communication equipments
Wireless video and audio communication device also disposes detecting unit, and this detecting unit is used to detect the wireless signal that other equipment send.Before communicating, detecting unit detects the wireless signal that whether has other base stations to send, if having, has available base station to exist in judgement, then closes the base station functions module of this equipment, enables wireless terminal module and this base station communication; Otherwise enable self base station functions module and other devices communicatings.
The single-point that carries out point-to-point communication or point-to-multipoint meeting when wireless video and audio communication device adds fashionable, if detecting available base station, the detecting unit of this wireless video and audio communication device exists, then close the base station functions module of this equipment, enable wireless terminal module and this base station communication, and utilize described base station and other devices communicatings, do not exist if detect available base station, then enable self base station functions module and other devices communicatings.
Application example one
5 so open-air video and audio communication devices are arranged, wherein an equipment C1 has enabled base station functions, termination function and built-in MCU function, other four (C2/C3/C4/C5) have only enabled wireless receiving wireless communication terminal function and termination function (not enabling the built-in MCU function), C2/C3/C4/C5 and C1 connect and authenticate, C1 looks audio call to C2/C3/C4/C5 respectively by IP address or number, after receiving, C2/C3/C4/C5 carries out call, connect thereby set up its video and audio communication, C1 can broadcast image and the sound of C2/C3/C4/C5 arbitrarily afterwards.
Application example two:
The equipment that three open-air video and audio communications are arranged, wherein the base station functions module of an equipment D1 with built-in MCU is unavailable, D2/D3 finds that the base station functions module of D1 is unavailable, just enabled the base station functions module of D2 according to a preconcerted arrangement, D1, D3 have set up network with D2 and have been connected, D1 makes a call to D2/D3 respectively, and D2 transmits D1 to the calling of D3, and video and audio communication had just been set up after D2/D3 had responded the calling of D1.Communication period D2 will be responsible for transmitting Media Stream and the signaling of D1 and D3.
In sum, in the technical scheme that the embodiment of the invention provides, by wireless base station functional module and/or the Radio Terminal Function module of supporting single channel work of supporting multichannel work being set in wireless video and audio communication device, looking audio unit and multiple spot administrative unit, make this wireless video and audio communication device can have network of one's own, do not need base station, the satellite link fixed, the communication that fault can not influence other nodes appears in any one point, convenient open-air moving; In addition, GP configuring RS, 3G, Wimax or cdma communication terminal module, so that this wireless video and audio communication device also can utilize existing wireless network to carry out open-air mobile video and audio communication, there are the place of signal and general headquarters to carry out video and audio communication, perhaps data interaction with prior wireless network; Built-in power supply unit, under rugged environments such as outage, desert, equipment can oneself be powered; Each point is a terminal node, also is MCU, and any one point can be initiated multiple spot and be looked audio conferencing communication; Built-in display unit, MIC, loud speaker make device height integrated, dispose fast, satisfy the demand of quick communication, and in addition, the highly integrated entire equipment that also makes is more cinch firm, prevents to break; This equipment is built-in with memory cell, can write down the content of looking voice communication, so that filing and subsequent analysis; And this equipment has been inherited the function of traditional video conferencing, i.e. functions such as calling, conference convening, meeting control.
The foregoing description is used for description and interpretation principle of the present invention.Be appreciated that the specific embodiment of the present invention is not limited thereto.To those skilled in the art, various changes of carrying out under the prerequisite that does not break away from the spirit and scope of the invention and modification all are encompassed within protection scope of the present invention.Therefore, protection scope of the present invention is determined by claim.
Claims (9)
1. wireless video and audio communication device has network interface unit, looks audio unit, Main Processor Unit, it is characterized in that described network interface unit comprises:
Support the wireless base station functional module of multichannel work and the Radio Terminal Function module of support single channel work;
Described wireless base station functional module or Radio Terminal Function module are used for external transceive data, the signaling data that receives is delivered to Main Processor Unit, the media data that receives delivered to look audio unit, and the data of consider oneself as in the future audio unit and/or Main Processor Unit send to other communication equipments by wireless channel.
2. wireless video and audio communication device as claimed in claim 1 is characterized in that, also comprises:
The multiple spot administrative unit is used to trigger described wireless base station functional module and sends wireless signal to other communication equipments, to initiate point-to-point or point-to-multipoint delivery.
3. wireless video and audio communication device as claimed in claim 1 is characterized in that, also comprises:
Detecting unit is used to detect the wireless signal that other equipment send;
Before communicating, detecting unit detects the wireless signal that whether has other base stations to send, if having, has available base station to exist in judgement, then closes the base station functions module of this equipment, enables wireless terminal module and this base station communication; Otherwise enable self base station functions module and other devices communicatings.
4. wireless video and audio communication device as claimed in claim 3 is characterized in that,
Described wireless base station functional module is set up Radio Link with at least two communication equipments respectively as required, for described at least two communication equipments provide wireless route.
5. as each described wireless video and audio communication device in the claim 1 to 4, it is characterized in that, also comprise:
GPRS, 3G, Wimax or cdma wireless communication terminal module communicate to insert GPRS, 3G, Wimax or cdma network.
6. as each described wireless video and audio communication device in the claim 1 to 4, it is characterized in that, also comprise:
The built-in power unit is used to this wireless video and audio communication device power supply; And/or
Built-in MIC, loud speaker and display unit; And/or
Built-in memory cell is used for the data flow of recorded and stored communication process.
7. a wireless video and audio communication system is characterized in that, comprises at least two wireless video and audio communication devices, and this wireless video and audio communication device has the audio unit of looking, Main Processor Unit, and this wireless video and audio communication device also comprises:
Support the wireless base station functional module of multichannel work and the Radio Terminal Function module of support single channel work;
Described wireless base station functional module or Radio Terminal Function module are used for external transceive data, the signaling data that receives is delivered to Main Processor Unit, the media data that receives delivered to look audio unit, and the data of consider oneself as in the future audio unit and/or Main Processor Unit send to other communication equipments by wireless channel;
Wherein be provided with wireless base station functional module and multiple spot administrative unit at least one wireless video and audio communication device, this multiple spot administrative unit is used to trigger described wireless base station functional module and sends wireless signal to other communication equipments, to initiate point-to-point or point-to-multipoint delivery;
Be provided with described Radio Terminal Function module in all the other wireless video and audio communication devices.
8. wireless video and audio communication as claimed in claim 7 system is characterized in that, comprises at least three described wireless video and audio communication devices: first, second and the 3rd wireless video and audio communication device; Wherein
First wireless video and audio communication device is provided with wireless base station functional module and multiple spot administrative unit;
The second and the 3rd wireless video and audio communication device is provided with described Radio Terminal Function module;
Directly set up Radio Link between the described second and the 3rd wireless video and audio communication device and communicate, or set up Radio Link by the wireless base station functional module in described first wireless video and audio communication device and communicate.
9. wireless video and audio communication as claimed in claim 7 system is characterized in that,
Also comprise in the described wireless video and audio communication device that is provided with wireless base station functional module and multiple spot administrative unit:
Detecting unit is used to detect the wireless signal that other equipment send;
Before communicating, detecting unit detects the wireless signal that whether has other base stations to send, if having, has available base station to exist in judgement, then closes the base station functions module of this equipment, enables wireless terminal module and this base station communication; Otherwise enable self base station functions module and other devices communicatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103056899A CN101217634B (en) | 2007-12-28 | 2007-12-28 | A wireless video and audio communication device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103056899A CN101217634B (en) | 2007-12-28 | 2007-12-28 | A wireless video and audio communication device and system |
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| Publication Number | Publication Date |
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| CN101217634A true CN101217634A (en) | 2008-07-09 |
| CN101217634B CN101217634B (en) | 2011-06-15 |
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| CN2007103056899A Expired - Fee Related CN101217634B (en) | 2007-12-28 | 2007-12-28 | A wireless video and audio communication device and system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101909270A (en) * | 2010-08-20 | 2010-12-08 | 北京中运人安消防设备有限公司 | Wireless communication command system for emergency rescue scene |
| CN101925074A (en) * | 2010-06-12 | 2010-12-22 | 中兴通讯股份有限公司 | Network node treatment method, device and system based on ZIGBEE |
| CN102256099A (en) * | 2011-06-20 | 2011-11-23 | 中兴通讯股份有限公司 | Parameter control method and device |
| CN101621658B (en) * | 2009-08-06 | 2012-11-28 | 中兴通讯股份有限公司 | Terminal, and method and system for terminal to realize wireless video conference |
| CN103297741A (en) * | 2012-02-28 | 2013-09-11 | 中兴通讯股份有限公司 | Television equipment and call realizing method |
| CN103997618A (en) * | 2014-06-14 | 2014-08-20 | 国家电网公司 | Anti-accident video and telephone conference device special for electric power |
| CN105208319A (en) * | 2015-11-05 | 2015-12-30 | 华为技术有限公司 | Conference terminal equipment and system |
| CN105991961A (en) * | 2015-02-02 | 2016-10-05 | 南宁富桂精密工业有限公司 | Video conference recording system and method |
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2007
- 2007-12-28 CN CN2007103056899A patent/CN101217634B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621658B (en) * | 2009-08-06 | 2012-11-28 | 中兴通讯股份有限公司 | Terminal, and method and system for terminal to realize wireless video conference |
| CN101925074A (en) * | 2010-06-12 | 2010-12-22 | 中兴通讯股份有限公司 | Network node treatment method, device and system based on ZIGBEE |
| CN101909270A (en) * | 2010-08-20 | 2010-12-08 | 北京中运人安消防设备有限公司 | Wireless communication command system for emergency rescue scene |
| CN101909270B (en) * | 2010-08-20 | 2013-09-18 | 北京中运人安消防设备有限公司 | Wireless communication command system for emergency rescue scene |
| CN102256099A (en) * | 2011-06-20 | 2011-11-23 | 中兴通讯股份有限公司 | Parameter control method and device |
| CN103297741A (en) * | 2012-02-28 | 2013-09-11 | 中兴通讯股份有限公司 | Television equipment and call realizing method |
| CN103997618A (en) * | 2014-06-14 | 2014-08-20 | 国家电网公司 | Anti-accident video and telephone conference device special for electric power |
| CN105991961A (en) * | 2015-02-02 | 2016-10-05 | 南宁富桂精密工业有限公司 | Video conference recording system and method |
| CN105208319A (en) * | 2015-11-05 | 2015-12-30 | 华为技术有限公司 | Conference terminal equipment and system |
| CN105208319B (en) * | 2015-11-05 | 2018-10-09 | 华为技术有限公司 | Conference terminal and system |
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|---|---|
| CN101217634B (en) | 2011-06-15 |
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