CN104580993A - Wireless digital video multipoint communication method - Google Patents
Wireless digital video multipoint communication method Download PDFInfo
- Publication number
- CN104580993A CN104580993A CN201510018684.2A CN201510018684A CN104580993A CN 104580993 A CN104580993 A CN 104580993A CN 201510018684 A CN201510018684 A CN 201510018684A CN 104580993 A CN104580993 A CN 104580993A
- Authority
- CN
- China
- Prior art keywords
- video
- control unit
- terminal equipment
- media control
- unit mcu
- 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
Links
Classifications
-
- Y02B60/50—
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a wireless digital video multipoint communication method. According to the method, a media control unit (MCU) is adopted to serve as a thin terminal, the computing work and the image processing work are finished by the media control unit (MCU), the image processing work comprises video decoding, video stitching and video zooming, the media control unit (MCU) is directly connected with a wireless base station to finish wireless access, decoding of video flows sent by all terminal devices and video stitching, and then the media control unit (MCU) compresses the stitched videos again according to the protocol requirement and then sends the compressed videos to the designated terminal devices which complete registration through the wireless base station in a wireless mode. According to the wireless digital video multipoint communication method, a framework for multipoint video communication is achieved, the bandwidth requirement of data communication of the terminal devices is greatly lowered, the computing resource requirement of the terminal devices is lowered, the implementing cost of the terminal devices is lowered, surplus of power consumption of the terminal devices is achieved, the working duration of the terminal devices is increased, and the wireless communication data size is reduced.
Description
Technical field
The present invention relates to communication field, specifically a kind of Wireless digital video multi-point communication method.
Background technology
The mutual method of existing techniques in realizing multipoint video comprises following method: directly can be sent to designated terminal by point to point network agreement when wired, by terminal by code stream decoding, and and other multiple sending points be dealt into local video flowing and do and splice, be presented on local display after the image procossing such as convergent-divergent, also can be sent to designated terminal by multicast protocol in the network supporting multicast protocol, terminal is presented at this locality after also they being decoded respectively after receiving the data flow that multiple spot sends after image procossing is done in this locality; Under radio conditions, in wireless, adopt the mode of point-to-point communication or the mode of broadcast at present, if need to do two-way video, each terminal is also the data that equally will receive multiple transmitting terminal more, then in local decode display, with similar under wireline case.
Mostly current multiple spot two-way video is that receiving terminal receives a large amount of video data stream sent, then at local decode.This mode is not too suitable, and to realize multipoint video in the wireless context mutual, its problem has: be limited eventually for wireless receiving ability terminal, such as WIFI has 16 passages under 2.4G frequency band, that is, for ideal situation maximum reception 16 tunnel vision signal terminal equipment, consider two-way interactive, now realize at most the real-time video communication of 8 points; Radio Resource is limited, and is easily disturbed, cause data receiver less than or receive error code, such bandwidth is restricted more; Under the bandwidth limited, transmission range is relevant to data volume, frequency and power, needs high-power when long-distance transmissions, and the flow reducing data flow provides certain protection to bandwidth.
Be difficult for realizing multiple spot large bandwidth data interchange terminal, cost and power consumption also limit the feasibility of realization.Equally, allow terminal complete multi-path video stream decoding and process also very high requirement is proposed to the computational resource of terminal handler.
Summary of the invention
The object of the present invention is to provide a kind of Wireless digital video multi-point communication method that cost is low, power consumption is little, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of Wireless digital video multi-point communication method, concrete steps are as follows:
(1) get out media control unit MCU, and media control unit MCU connects each terminal equipment respectively by wireless base station;
(2) registered to media control unit MCU by fixing IP and completed negotiation after terminal equipment start, media control unit MCU authorizes to the terminal equipment of registration;
(3) media control unit MCU receives video data that all terminal equipments put forward and completes decoding;
(4) media control unit MCU selects the video data that some roads terminal equipment is put forward, video-splicing is carried out according to each terminal equipment, and complete convergent-divergent and frame per second coupling for the resolution of display device in each terminal equipment, then the video image after process is re-encoded as the compressive flow of H.264 encoding;
(5) last media control unit MCU sends the video spliced to registering terminal equipment by multicast protocol;
(6) repeat step (4) and step (5), the video data that media control unit MCU selects other road terminal equipments to put forward, sends to the other-end equipment completing registration of specifying the video spliced by multicast protocol after processing.
As the further scheme of the present invention: the communication object of described terminal equipment is wireless base station, the video intercommunication between terminal equipment completes splicing and sound mixing by wireless base station.
As the present invention's further scheme: be provided with a H.264 encoder and one H.264 decoder in described terminal equipment.
Compared with prior art, the invention has the beneficial effects as follows:
Present invention achieves a kind of framework of multipoint video communication, greatly reduce the bandwidth demand of terminal equipment data communication, decrease the computational resource requirements of terminal equipment, what reduce terminal equipment realizes cost, the power consumption of terminal equipment is made also to obtain surplus, add the operating time of terminal equipment, decrease the data volume of wireless telecommunications.
Accompanying drawing explanation
Fig. 1 is the connection diagram of media control unit MCU in the present invention.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of Wireless digital video multi-point communication method, concrete steps are as follows:
(1) get out media control unit MCU, and media control unit MCU connects each terminal equipment respectively by wireless base station;
(2) registered to media control unit MCU by fixing IP and completed negotiation after terminal equipment start, media control unit MCU authorizes to the terminal equipment of registration;
(3) media control unit MCU receives video data that all terminal equipments put forward and completes decoding;
(4) media control unit MCU selects the video data that some roads terminal equipment is put forward, video-splicing is carried out according to each terminal equipment, and complete convergent-divergent and frame per second coupling for the resolution of display device in each terminal equipment, then the video image after process is re-encoded as the compressive flow of H.264 encoding;
(5) last media control unit MCU sends to the terminal equipment completing registration of specifying the video spliced by multicast protocol;
(6) repeat step (4) and step (5), the video data that media control unit MCU selects other road terminal equipments to put forward, sends to the other-end equipment completing registration of specifying the video spliced by multicast protocol after processing.
Described Wireless digital video multi-point communication method adopts media control unit MCU as thin terminal, give media control unit MCU by evaluation work and image processing work to complete, described image processing work comprises video decode, video-splicing and video scaling, media control unit MCU directly connects wireless base station, complete decoding and the video-splicing of the video flowing that wireless access and Ge Lu terminal equipment are sent, then media control unit MCU is wirelessly sent to the terminal equipment completing registration of specifying by wireless base station after again being compressed by the video spliced according to protocol requirement again, for the user of with no authorized, not video can be received, also the good protection to video data is just achieved, as long as the coding of such terminal equipment process one road video and the decoding display of a road video.
Embodiment 1
A kind of Wireless digital video 3 conference communications methods, concrete steps are as follows:
(1) get out media control unit MCU, and media control unit MCU connects terminal equipment A, terminal equipment B and terminal equipment C respectively by wireless base station;
(2) register to media control unit MCU respectively by fixing IP after terminal equipment A, terminal equipment B and terminal equipment C start and complete negotiation, media control unit MCU authorizes to the terminal equipment registered;
(3) video data put forward of media control unit MCU receiving terminal apparatus A, terminal equipment B and terminal equipment C complete decoding, the pixel of the video flowing wherein terminal equipment A sent out is 1080P30, and in terminal equipment A, the resolution of display device is 800 × 480;
(4) video data that terminal equipment B and terminal equipment C puts forward is carried out video-splicing by media control unit MCU, and for the resolution of terminal equipment A by the video image of video through convergent-divergent and frame per second coupling formation 800 × 480 resolution, then by compressive flow that this encoding video pictures becomes H.264 to encode;
(5) last media control unit MCU sends the video spliced to terminal equipment A by multicast protocol;
(6) repeat step (4) and step (5), is sent to terminal equipment C after the video data process that terminal equipment A and terminal equipment B is put forward, after the video data process that terminal equipment A and terminal equipment C is put forward, is sent to terminal equipment B.
Described terminal equipment A receives the compressed bit stream of a road 800x480, and use broadband is 200Kbps, and send out the compressed bit stream of a road 1080P30, utilized bandwidth is 1-2Mbps, and terminal equipment A only needs a H.264 encoder and one H.264 decoder.
Present invention achieves a kind of framework of multipoint video communication, greatly reduce the bandwidth demand of terminal equipment data communication, decrease the computational resource requirements of terminal equipment, what reduce terminal equipment realizes cost, the power consumption of terminal equipment is made also to obtain surplus, add the operating time of terminal equipment, decrease the data volume of wireless telecommunications.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (3)
1. a Wireless digital video multi-point communication method, is characterized in that, concrete steps are as follows:
(1) get out media control unit MCU, and media control unit MCU connects each terminal equipment respectively by wireless base station;
(2) registered to media control unit MCU by fixing IP and completed negotiation after terminal equipment start, media control unit MCU authorizes to the terminal equipment of registration;
(3) media control unit MCU receives video data that all terminal equipments put forward and completes decoding;
(4) media control unit MCU selects the video data that some roads terminal equipment is put forward, video-splicing is carried out according to each terminal equipment, and complete convergent-divergent and frame per second coupling for the resolution of display device in each terminal equipment, then the video image after process is re-encoded as the compressive flow of H.264 encoding;
(5) last media control unit MCU sends the video spliced to registering terminal equipment by multicast protocol;
(6) repeat step (4) and step (5), the video data that media control unit MCU selects other road terminal equipments to put forward, sends to the other-end equipment completing registration of specifying the video spliced by multicast protocol after processing.
2. Wireless digital video multi-point communication method according to claim 1, is characterized in that, the communication object of described terminal equipment is wireless base station, and the video intercommunication between terminal equipment completes splicing and sound mixing by wireless base station.
3. Wireless digital video multi-point communication method according to claim 1, is characterized in that, is provided with a H.264 encoder and one H.264 decoder in described terminal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018684.2A CN104580993A (en) | 2015-01-15 | 2015-01-15 | Wireless digital video multipoint communication method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018684.2A CN104580993A (en) | 2015-01-15 | 2015-01-15 | Wireless digital video multipoint communication method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104580993A true CN104580993A (en) | 2015-04-29 |
Family
ID=53096074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510018684.2A Pending CN104580993A (en) | 2015-01-15 | 2015-01-15 | Wireless digital video multipoint communication method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104580993A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106878657A (en) * | 2015-12-14 | 2017-06-20 | 中国移动通信集团公司 | A kind of video-meeting method and video conferencing system |
| CN108134918A (en) * | 2018-01-30 | 2018-06-08 | 苏州科达科技股份有限公司 | Method for processing video frequency, device and multipoint video processing unit, conference facility |
| CN110521202A (en) * | 2017-07-24 | 2019-11-29 | 优普利兹通讯技术公司 | The videoconference server and its method of multi-screen video conference can be provided using multiple video conference terminals |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553710A (en) * | 2003-06-05 | 2004-12-08 | 浙江南望图像信息产业有限公司 | Flow converting system and method for video frequency meet |
| CN101132516A (en) * | 2007-09-28 | 2008-02-27 | 深圳华为通信技术有限公司 | Method, system for video communication and device used for the same |
| US20110063407A1 (en) * | 2008-05-23 | 2011-03-17 | Jing Wang | Method and apparatus for controlling multipoint conference |
| CN102833519A (en) * | 2011-06-14 | 2012-12-19 | 华为终端有限公司 | Method, device and system for adaption processing on video image |
-
2015
- 2015-01-15 CN CN201510018684.2A patent/CN104580993A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553710A (en) * | 2003-06-05 | 2004-12-08 | 浙江南望图像信息产业有限公司 | Flow converting system and method for video frequency meet |
| CN101132516A (en) * | 2007-09-28 | 2008-02-27 | 深圳华为通信技术有限公司 | Method, system for video communication and device used for the same |
| US20110063407A1 (en) * | 2008-05-23 | 2011-03-17 | Jing Wang | Method and apparatus for controlling multipoint conference |
| CN102833519A (en) * | 2011-06-14 | 2012-12-19 | 华为终端有限公司 | Method, device and system for adaption processing on video image |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106878657A (en) * | 2015-12-14 | 2017-06-20 | 中国移动通信集团公司 | A kind of video-meeting method and video conferencing system |
| CN110521202A (en) * | 2017-07-24 | 2019-11-29 | 优普利兹通讯技术公司 | The videoconference server and its method of multi-screen video conference can be provided using multiple video conference terminals |
| CN110521202B (en) * | 2017-07-24 | 2021-02-02 | 优普利兹通讯技术公司 | Video conference server capable of providing multi-screen video conference by using a plurality of video conference terminals and method thereof |
| CN108134918A (en) * | 2018-01-30 | 2018-06-08 | 苏州科达科技股份有限公司 | Method for processing video frequency, device and multipoint video processing unit, conference facility |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101945096B (en) | Video live broadcast system facing to set-top box and PC of mobile phone and working method thereof | |
| CN102946570B (en) | Transmission system and method for multi-stream streaming media of self-adaption network bandwidth | |
| CN105635636A (en) | Video conference system and method for realizing transmission control of video image | |
| CN104683863A (en) | Method and equipment for multimedia data transmission | |
| CN103092552A (en) | Method and system for achieving multi-screen display | |
| CN104661085A (en) | Multi-way wireless display method and device | |
| CN103327287B (en) | A kind of conference signal playing method and device, video conference terminal, mobile device | |
| TW201338614A (en) | Hybrid receivers and transmitters, and information feedback methods thereof | |
| CN102118602B (en) | Method and system for displaying auxiliary streaming video in multiple pictures | |
| CN103581609A (en) | Video processing method, device and system | |
| CN103051864A (en) | Mobile video conference method and system thereof | |
| CN102088593B (en) | MPEG4 (Moving Pictures Experts Group 4) compressed video transmission communication system and method based on Bluetooth 3.0 specification | |
| CN1980334A (en) | Video-picture composition code transmission method | |
| CN101098244A (en) | Method and system for media process in multi-point conference | |
| CN104918132A (en) | Method and system for smart television audio and video communication | |
| CN108200394A (en) | A kind of UAV system that multiway images is supported to transmit | |
| CN108600239A (en) | Data synthesis method and device, client, server | |
| CN110418167A (en) | A kind of broadcast TV program Transmission system based on 5G | |
| CN104580993A (en) | Wireless digital video multipoint communication method | |
| CN103384319B (en) | The image-scaling method and system of double-current video conference terminal | |
| CN103269433A (en) | Video data transmission method and video data transmission system | |
| CN107181744A (en) | A kind of Video processing and coding method, processor and encoder | |
| CN103957391A (en) | Method and system for displaying videos of all parties at same time during multi-party call in video intercom | |
| CN101350908A (en) | Video data transmission system and method for network video conference | |
| CN102972033B (en) | For the method and system of the communication of stereoscopic three dimensional video information |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |