CN102377948A - Mobile network-based method and equipment for merging digital video transmission - Google Patents
Mobile network-based method and equipment for merging digital video transmission Download PDFInfo
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- CN102377948A CN102377948A CN2011103305050A CN201110330505A CN102377948A CN 102377948 A CN102377948 A CN 102377948A CN 2011103305050 A CN2011103305050 A CN 2011103305050A CN 201110330505 A CN201110330505 A CN 201110330505A CN 102377948 A CN102377948 A CN 102377948A
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Abstract
The invention relates to the technical field of merging video transmission equipment of a mobile network and discloses a mobile network-based method and equipment for merging video transmission. The method comprises the following steps of: transmitting video data of a camera to a public wireless network and a server through a video acquisition and processing module and a wireless communication module by using terminals and server frameworks to build a transmission channel. The equipment comprises terminal equipment and server equipment, wherein the wireless communication module of the terminal equipment acquires the video camera by connecting the video processing module with the camera; and the server equipment accesses to Internet through three internet protocol (IP) networks and receives video data flows sent by video transmission terminal equipment. According to the method, videos can be simultaneously lively broadcast by using multiple domestic mobile networks, the equipment has the advantages of high mobility, no limit of visibility range on data transmission, dynamic adjustment of bandwidth and the like, transmission delay between the networks of different operators can be effectively reduced, and the real time of the video live broadcast transmission is ensured at the same time.
Description
[technical field]
The present invention relates to the mobile network's and flow the video transmission equipment technical field, be fit to especially to use simultaneously that the multiple mobile network of operator 3G network, 4G network, WiFiX use is a kind of based on the mobile network's and flow video transmission method and equipment.
[technical background]
At present, common video transmission equipment in the mobile network often on terminal equipment adopts 1 or several same carrier networks, and uses a wired broadband network at server end, receiving video data stream.It is exactly when carrying out video transmission that there is the drawback of a maximum in such transmission equipment, can receive the restriction of region, place, because the inhomogeneities that carrier network is built; Complexity with urban architecture; The 3G/4G network that a lot of places are not each operators all covers, and has caused the video transmission based on the mobile network, can use in some place; Some place can not be used; The local video that particularly under mobile status, can have signal during transmission of video is normal, the place of no signal or poor signal quality, and video quality descends and mosaic or video breaks occur.Existing equipment also has the network that can support two operators; But because server end has adopted single network receiver, video; Because the competition situation of Chinese existing operator; Internet transmission time delay between the cross operator is far longer than the inner time delay of same carrier network, causes parallel video stream propagation delay time difference between different operators bigger like this, and video flowing can't satisfy the real-time requirement of broadcast level in the process of recovering.
[summary of the invention]
For overcoming the deficiency of prior art; The object of the present invention is to provide a kind ofly based on the mobile network's and flow video transmission method and equipment, can carry out the live transmission equipment of real-time video through public 3G, 4G, WiFiX mobile network, the mobile network's of access combination and a certain standard of the present invention through multiple standard (3G, 4G, WiFi) mobile network multichannel makes up; Pass through channel bonding; Expansion uplink bandwidth satisfies the required bandwidth of net cast transmission, simultaneously for solving the delay problem of Network Transmission; Consider the present situation of domestic carrier network; Adopt many network insertions at server end, and the mode that stream receives receives and the real-time recovery video flowing, guaranteed the time delay and the real-time of video transmission.
For realizing the foregoing invention purpose, the present invention adopts following technical scheme:
A kind of based on the mobile network's and flow video transmission equipment; Comprise: terminal equipment, server end equipment; Said terminal equipment comprises: wireless communication module and video processing module; Wireless communication module is connected with video processing module through USB interface, and video processing module is connected with video camera through video interface realizes video data acquiring; Server end equipment inserts the Internet through 3 IP networks, the video data stream that parallel receive video transmission terminal equipment sends.
A kind of based on the mobile network's and flow video transmission equipment, the wireless communication module of said terminal equipment comprises usb circuit, USB power supply circuits, USB hot plug control circuit, mobile network's access module circuit and power-switching circuit.
A kind of based on the mobile network's and flow video transmission equipment, the video processing module of said terminal equipment is linked to each other with video coding reset circuit, video coding clock circuit, video coding electronic hard disc, video coding memory storage SDRAM, video acquisition interface by video coding CPU; Said video acquisition interface has three kinds of interfaces, is respectively IEEE1394 interface, SDI interface and HDMI interface, and terminal equipment has the video data that wherein any interface input is used in automatic identification.
A kind of based on the mobile network's and flow video transmission equipment, mobile network's access module circuit of said terminal equipment comprises TD-SCDMA access module circuit, WCDMA access module circuit, CDMA2000 access module circuit, 4G (TDD-LTE) access module circuit, 4G (FDD-LTE) access module circuit, WiFi access module circuit.
A kind of based on the mobile network's and flow video transmission equipment, the circuit that said terminal equipment mobile network AM access module has 16 3G AM access modules, 4G AM access module, WiFi AM access module is connected with corresponding wireless network.
A kind of based on the mobile network's and flow video transmission equipment; The combination in any that said terminal equipment mobile network AM access module has 1 ~ 16 3G, 4G, WiFi access module circuit constitutes the combination that wherein has 3 TD-SCDMA access module circuit, 2 WCDMA access module circuit and 1 CDMA2000 access module circuit; Or combination with 1 TD-SCDMA access module circuit, 1 FDD-LTE access module circuit, 1 WCDMA access module circuit.
A kind of based on the mobile network's and flow video transmission equipment; Said server end equipment inserts the broadband network of at least three or three above operators simultaneously; The broadband network of said three operators is respectively: TD-SCDMA broadband network, WCDMA broadband network, CDMA2000 broadband network, server end interface mode are that speed is supported the adaptive Ethernet of the 10M/100M/1000M interface that is electrically connected.
A kind of based on the mobile network's and flow video transmission equipment, form point-to-point connection between 16 wireless transmission channels that connect on the said terminal equipment and three Broadband Network Interfaces of server end, or multiple spot connects to a bit.
A kind of based on the mobile network's and flow video transmission equipment; Three network interfaces between the wireless channel of said terminal equipment and the server are that the minimum principle of time delay is carried out the transmission of network coupling; Wherein, The broadband interface coupling transmission of the WCDMA network on the terminal equipment and the CHINAUNICOM of server end, the broadband interface coupling transmission of CDMA2000 network and China Telecom.
A kind of based on the mobile network's and flow video transmission method, adopt terminal and server framework, its step is following:
1), terminal equipment transfers to the processing of video acquisition processing module with the video data of video camera through video input interface;
2), transferring to wireless communication module through video acquisition processing module processed video data through the general-purpose serial bus USB interface handles;
3), wireless communication module sends video data stream through 3G access module circuit, 4G access module circuit, the WiFi access module circuit of various standards;
4) the public wireless network of video data stream and the server that, send are set up transmission channel:
A. the network and the server of the China Mobile through 2 TD-SCDMA Radio Links are set up transmission channel; B. set up transmission channel through 2 WCDMA Radio Links through the network and the server of CHINAUNICOM, set up transmission channel through Chinese telecommunications network and server through a CDMA2000 Radio Link c.2;
5), through 6 Radio Links of three public wireless networks of operator, bind through up link and to have expanded transmission bandwidth;
6), through the video Data Transmission of having expanded the transmission bandwidth transmission to the Internet;
7), server end equipment receives the video data of internet transmission through 3 IP networks;
8), the video data of completion video camera realtime graphic is sent to the server end of TV station.
Because adopt aforesaid technical scheme, the present invention has following superiority:
A kind of based on the mobile network's and flow video transmission method and equipment; Compare common 3G video transmission equipment; Can use public mobile network, can use 3G, 4G, the WiFi network of domestic how tame mobile operator simultaneously, in the place that has 3G network to cover; Adopt multi-channel binding technological expansion uplink bandwidth; Adopt mobile network of operator and cable network to mate, the parallel video data after the section are transferred to the corresponding network interface of server end by route from the internal network of operator on terminal equipment, carried out the recovery and the reconstruct of video flowing by the application software of server.After adopting this equipment, carry out net cast and can use the 3G of any operator, 4G network to carry out real-time net cast simultaneously, satisfy propagation delay time less than 1 second broadcast level requirement.With respect to live equipment of traditional satellite video and the live equipment of microwave video; The vision signal that the present invention utilizes 3G (3G (Third Generation) Moblie) network or 4G (the 4th third-generation mobile communication) that video camera is exported is loaded into behind video processing module coding, compression, encryption, package in a plurality of parallel wireless channels to be transmitted, and the server end of video production chamber recovers live video stream after through 1 to 3 parallel I P (network interconnection agreement) network the data that receive being unpacked reorganization, deciphering, decompression, decoding.Can carry out net cast in the place that has wireless network to cover after using this equipment; And equipment has mobility high; Transfer of data is not limited by sighting distance, and plurality of advantages such as Bandwidth Dynamic adjustment are simultaneously at the network method of reseptance of the server end that receives through walking abreast; Can effectively reduce the transmission delay between the different operators network, guarantee the real-time of net cast transmission.
[description of drawings]
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a structural principle block diagram of the present invention.
Fig. 2 is an application schematic block diagram of the present invention.
Fig. 3 is an equipment principle block diagram of the present invention.
[embodiment]
Like Fig. 1,2, shown in 3; A kind of based on the mobile network's and flow video transmission equipment; Comprise: terminal equipment, server end equipment; Said terminal equipment comprises: wireless communication module and video processing module, and wireless communication module is connected with video processing module through USB interface, and video processing module is connected the realization video data acquiring through any one interface of IEEE1394 interface, SDI interface or HDMI interface with video camera; Server end equipment inserts the Internet through 3 IP networks, the video data stream that parallel receive video transmission terminal equipment sends.
Said server end equipment inserts the broadband network of at least three or three above operators simultaneously; The broadband network of said three operators is respectively: TD-SCDMA broadband network, WCDMA broadband network, CDMA2000 broadband network, server end interface mode are that speed is supported the adaptive Ethernet of the 10M/100M/1000M interface that is electrically connected.
Form point-to-point connection between 16 wireless transmission channels that connect on the said terminal equipment and three Broadband Network Interfaces of server end, or multiple spot connects to a bit.
Three network interfaces between the wireless channel of said terminal equipment and the server are that the minimum principle of time delay is carried out the transmission of network coupling; Guarantee that the propagation delay time between terminal equipment and the server is minimum; Like the broadband interface coupling transmission of the CHINAUNICOM of WCDMA network on the terminal equipment and server end, the broadband interface coupling of CDMA2000 network and China Telecom is transmitted.
A kind of based on the mobile network's and flow video transmission method, adopt terminal and server framework, its step is following:
1), terminal equipment transfers to the processing of video acquisition processing module with the video data of video camera through video input interface;
2), transferring to wireless communication module through video acquisition processing module processed video data through the general-purpose serial bus USB interface handles;
3), wireless communication module sends video data stream through 3G access module circuit, 4G access module circuit, the WiFi access module circuit of various standards;
4) the public wireless network of video data stream and the server that, send are set up transmission channel:
A. the network and the server of the China Mobile through 2 TD-SCDMA Radio Links are set up transmission channel; B. set up transmission channel through 2 WCDMA Radio Links through the network and the server of CHINAUNICOM, set up transmission channel through Chinese telecommunications network and server through a CDMA2000 Radio Link c.2;
5), through 6 Radio Links of three public wireless networks of operator, bind through up link and to have expanded transmission bandwidth;
6), through the video Data Transmission of having expanded the transmission bandwidth transmission to the Internet;
7), server end equipment receives the video data of internet transmission through 3 IP networks;
8), the video data of completion video camera realtime graphic is sent to the server end of TV station.
As shown in Figure 1; The invention discloses a kind of digital video live transmission equipment based on the mobile network; It comprises wireless communication module and video processing module; Wireless communication module is connected with video processing module through USB (USB) interface, and video processing module is connected with video camera through IEEE1394 interface, SDI, HDMI interface.Wireless communication module is connected with public wireless network through the access module circuit (3G, 4G, WiFi) of various standards.
As shown in Figure 2; It is application sketch map of the present invention; The present invention sets up transmission channel through 2 TD-SCDMA Radio Links by the network and the server of China Mobile; 2 WCDMA Radio Links are set up transmission channel through the network and the server of CHINAUNICOM, and 2 CDMA2000 Radio Links are set up transmission channel through Chinese telecommunications network and server, through 6 Radio Links of three carrier networks; Expanded transmission bandwidth through the up link binding, the realtime graphic of video camera has been sent to the server end of TV station.
Mobile network's access module circuit of said terminal equipment comprises TD-SCDMA access module circuit, WCDMA access module circuit, CDMA2000 access module circuit, 4G (TDD-LTE) access module circuit, 4G (FDD-LTE) access module circuit, WiFi access module circuit.The access module circuit that said terminal equipment mobile network AM access module has 16 3G, 4G, WiFi is connected with corresponding wireless network.
The combination in any that said terminal equipment mobile network AM access module has 1 ~ 16 3G, 4G, WiFi access module circuit constitutes; Wherein, the combination that has 3 TD-SCDMA access module circuit, 2 WCDMA access module circuit and 1 CDMA2000 access module circuit; Or combination with 1 TD-SCDMA access module circuit, 1 FDD-LTE access module circuit, 1 WCDMA access module circuit.
As shown in Figure 3, the invention discloses a kind based on the mobile network and flow video transmission equipment, its wireless communication module comprises usb circuit, USB power supply circuits, USB hot plug control circuit, mobile network's access module circuit and power-switching circuit; Video processing module comprises video coding CPU; Its also with video coding cpu reset circuit, video coding cpu clock circuit, video coding CPU electronic hard disc, video coding CPU SDRAM, IEEE1394 interface circuit, SDI interface circuit, HDMI interface circuit and the usb circuit that is connected with wireless communication module link to each other.
Radio access module as shown in Figure 3, that the present invention uses can be the USB interface 3G card of surfing Internet that the third party provides, 3G wireless Internet card that provides like each big operator now and the 4G card of surfing Internet that provides later on.
As shown in Figure 3, the CPU among the present invention is the CPU of Intel Core2 DUO U7600 and the compatible model of other x86, and CPU also can use the CPU of PowerPC series, like MPC8360, MPC8548 etc.The acp chip of USB switching part is AU9254.
As shown in Figure 3, the SDRAM among the present invention is the DIMM memory bar of general 533MHz, and capacity is 1GB, but is not limited to the memory bar of this speed and the type, also can use the internal memory particle to be welded on the video processing module main circuit board.
As shown in Figure 3, the electronic hard disc among the present invention is 1.8 cun PATA 16GB of SSD solid state hard disc MLC, but is not limited to this model.
As shown in Figure 3, the operating system that video processing module uses among the present invention is Embedded WinXP or linux system.The video processing module of said terminal equipment is linked to each other with video coding reset circuit, video coding clock circuit, video coding electronic hard disc, video coding memory storage SDRAM, video acquisition interface by video coding CPU.The video acquisition interface of said terminal equipment has three kinds of interfaces, is respectively IEEE1394 interface, SDI interface and HDMI interface, and terminal equipment has the video data that wherein any interface input is used in automatic identification.
The present invention adopts terminal and server framework; Terminal equipment sends video data stream through reaching 16 parallel 3G (3G (Third Generation) Moblie) transmission channels or 4G (the 4th third-generation mobile communication) transmission channel, and server end realizes that through 3 parallel receive networks video datas receive.Terminal equipment comprises wireless communication module, video acquisition processing module.Wireless communication module is connected with the video acquisition processing module through USB (USB) interface, and the video acquisition processing module is connected with video camera through IEEE1394 interface, SDI (serial data interface) interface or HDMI (HDMI) interface.
Claims (10)
1. one kind based on the mobile network's and flow video transmission equipment; It is characterized in that: comprising: terminal equipment, server end equipment; Said terminal equipment comprises: wireless communication module and video processing module; Wireless communication module is connected with video processing module through USB interface, and video processing module is connected with video camera through video interface realizes video data acquiring; Server end equipment inserts the Internet through 3 IP networks, the video data stream that parallel receive video transmission terminal equipment sends.
2. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment, it is characterized in that: the wireless communication module of said terminal equipment comprises usb circuit, USB power supply circuits, USB hot plug control circuit, mobile network's access module circuit and power-switching circuit.
3. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment, it is characterized in that: the video processing module of said terminal equipment is linked to each other with video coding reset circuit, video coding clock circuit, video coding electronic hard disc, video coding memory storage SDRAM, video acquisition interface by video coding CPU; Said video acquisition interface has three kinds of interfaces, is respectively IEEE1394 interface, SDI interface and HDMI interface, and terminal equipment has the video data that wherein any interface input is used in automatic identification.
4. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment, it is characterized in that: mobile network's access module circuit of said terminal equipment comprises TD-SCDMA access module circuit, WCDMA access module circuit, CDMA2000 access module circuit, 4G (TDD-LTE) access module circuit, 4G (FDD-LTE) access module circuit, WiFi access module circuit.
5. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment, it is characterized in that: the circuit that said terminal equipment mobile network AM access module has 16 3G AM access modules, 4G AM access module, WiFi AM access module is connected with corresponding wireless network.
6. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment; It is characterized in that: the combination in any that said terminal equipment mobile network AM access module has 1 ~ 16 3G, 4G, WiFi access module circuit constitutes; Wherein, the combination that has 3 TD-SCDMA access module circuit, 2 WCDMA access module circuit and 1 CDMA2000 access module circuit; Or combination with 1 TD-SCDMA access module circuit, 1 FDD-LTE access module circuit, 1 WCDMA access module circuit.
7. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment; It is characterized in that: said server end equipment inserts the broadband network of at least three or three above operators simultaneously; The broadband network of said three operators is respectively: TD-SCDMA broadband network, WCDMA broadband network, CDMA2000 broadband network, server end interface mode are that speed is supported the adaptive Ethernet of the 10M/100M/1000M interface that is electrically connected.
8. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment; It is characterized in that: form point-to-point connection between 16 wireless transmission channels that connect on the said terminal equipment and three Broadband Network Interfaces of server end, or multiple spot connects to a bit.
9. according to claim 1 a kind of based on the mobile network's and flow video transmission equipment; It is characterized in that: three network interfaces between the wireless channel of said terminal equipment and the server are that the minimum principle of time delay is carried out the transmission of network coupling; Wherein, The broadband interface coupling transmission of the WCDMA network on the terminal equipment and the CHINAUNICOM of server end, the broadband interface coupling transmission of CDMA2000 network and China Telecom.
10. equipment a kind of is based on the mobile network's and flow video transmission method according to claim 1, and it is characterized in that: adopt terminal and server framework, its step is following:
1), terminal equipment transfers to the processing of video acquisition processing module with the video data of video camera through video input interface;
2), transferring to wireless communication module through video acquisition processing module processed video data through the general-purpose serial bus USB interface handles;
3), wireless communication module sends video data stream through 3G access module circuit, 4G access module circuit, the WiFi access module circuit of various standards;
4) the public wireless network of video data stream and the server that, send are set up transmission channel:
A. the network and the server of the China Mobile through 2 TD-SCDMA Radio Links are set up transmission channel; B. set up transmission channel through 2 WCDMA Radio Links through the network and the server of CHINAUNICOM, set up transmission channel through Chinese telecommunications network and server through a CDMA2000 Radio Link c.2;
5), through 6 Radio Links of three public wireless networks of operator, bind through up link and to have expanded transmission bandwidth;
6), through the video Data Transmission of having expanded the transmission bandwidth transmission to the Internet;
7), server end equipment receives the video data of internet transmission through 3 IP networks;
8), the video data of completion video camera realtime graphic is sent to the server end of TV station.
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| CN105323649A (en) * | 2014-07-18 | 2016-02-10 | 季春宏 | Wireless video transmission method and system of multi-route simultaneous transmission hot standby |
| CN106714006A (en) * | 2017-02-10 | 2017-05-24 | 福州大学 | Video multiplex parallel transmission method in heterogeneous wireless network based on unicast broadcast technology |
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