CN101674476A - Method, device and system for wireless live broadcast - Google Patents
Method, device and system for wireless live broadcast Download PDFInfo
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- CN101674476A CN101674476A CN 200910093109 CN200910093109A CN101674476A CN 101674476 A CN101674476 A CN 101674476A CN 200910093109 CN200910093109 CN 200910093109 CN 200910093109 A CN200910093109 A CN 200910093109A CN 101674476 A CN101674476 A CN 101674476A
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Abstract
The invention provides a method, a device and a system for wireless live broadcast. The method includes the following steps: video and/or audio signals sent by video recording equipment are received;and the video and/or the audio signals are coded and then packed and compressed to be transmitted to a video distribution server at a control terminal by a wireless communication network so that the video and/or the audio signals can be distributed to different broadcasting terminals. The embodiment of the invention can accomplish various live broadcasts by only adopting common video recording equipment, thereby not only greatly reducing the cost of live broadcast, but also presenting portability; besides, the embodiment of the invention adopts the wireless communication network for uploadingand distributing the video/audio signals, and therefore live video broadcast can be carried out at any time and any place in the coverage area of the mobile network of an operator, thereby enduing theembodiment of the invention to have high mobility.
Description
Technical field
The present invention relates to the direct seeding technique field, especially relates to a kind of wireless live broadcast methods, devices and systems.
Background technology
At present, the broadcast of TV programme (comprising network TV program etc.) generally all is after shooting is finished, and through just broadcasting to spectators after the post-production, so most of program that spectators can watch all is video program, but not the program of broadcasting live.But, for some special circumstances, just be starved of it is broadcast live, such as: occasion, athletic competition, concert, special news spot, the major accident scene etc. sent out are arranged.
At above-mentioned live demand, on-the-spot broadcasting technology truly mainly contains following several at present:
1, direct broadcasting satellite: utilize the satellite transmission car that the video/audio signal that photographs is sent to satellite, be transmitted on the ground power supply of the TV receiving apparatus in the appointed area by satellite again and look broadcast.
2, come the appointed area is monitored in real time by the camera that is fixedly attached to network, this also is to belong to a kind of live in some sense.
3, it is live to utilize phone to carry out phone at particular place.
The inventor finds above-mentioned existing direct seeding technique in realizing process of the present invention, all exist defective separately:
Satellite transmission car cost in the direct broadcasting satellite technology is very high, and the expense of leased satellite channel is also quite expensive, is not suitable for popularizing; The camera guarded region of monitoring in real time can only be a zone of fixing, poor mobility; Have only audio frequency and phone is live, be unfavorable for understanding real field condition.
Summary of the invention
Device and system that the embodiment of the invention provides a kind of wireless live broadcast method and used this method are used to provide a kind of cost lower, and travelling performance is good, informative direct broadcast service.
The embodiment of the invention provides a kind of wireless live broadcast method, and this method comprises: receive the video and/or audio signal that camera-shooting and recording device sends; Described video and/or audio signal encode and pack compression back is sent to the video shunting server of control end by cordless communication network, so that described video and/or audio signal is branched to different playback terminals.
Preferably, the wireless live broadcast method that provides of the embodiment of the invention also comprises: receive user's input with the corresponding positional information request signal of described camera-shooting and recording device; Obtain described camera-shooting and recording device current position information according to described positional information request signal.
Preferably, after the video and/or audio signal that the reception camera-shooting and recording device sends in the embodiment of the invention, also comprise: described video and/or audio signal and described positional information are stored to data buffer.
Preferably, obtaining described camera-shooting and recording device current position information according to described positional information request signal in the embodiment of the invention comprises: according to described positional information request signal receiving world locational system gps signal; Calculate and generate gps satellite information according to described gps signal; Directly generate described positional information according to described gps satellite information.
Preferably, obtaining described camera-shooting and recording device current position information according to described positional information request signal in the embodiment of the invention comprises: according to described positional information request signal receiving world locational system gps signal; Calculate and generate gps satellite information and described gps satellite information is sent to location server according to described gps signal; Receive the described positional information that described location server returns.
Preferably, the compression back of in the embodiment of the invention described video and/or audio signal being encoded and pack is sent to video shunting server by cordless communication network and comprises: described video and/or audio signal and the described positional information compression back of encoding and pack is sent to video shunting server by cordless communication network.
Preferably, the wireless live broadcast method that provides of the embodiment of the invention also comprises: the video and/or audio signal that receives described control end by cordless communication network is realized interactive communication.
The embodiment of the invention also provides a kind of wireless live broadcast device, comprising: the video reception unit is used to receive the video and/or audio signal that camera-shooting and recording device sends; Coding unit is used for the compression of encoding and pack of described video and/or audio signal; Transmission unit is used for the described video and/or audio signal after the packing compression is shunted server by the video that cordless communication network is sent to control end, so that described video and/or audio signal is branched to different playback terminals; Control unit is used to control described video reception unit, described coding unit and described transmission unit and finishes separately operation.
Preferably, the wireless live broadcast device that the embodiment of the invention provides also comprises: the position requests unit, be used to receive user's input with the corresponding positional information request signal of described camera-shooting and recording device; Location information acquiring unit is used for obtaining described camera-shooting and recording device current position information according to described positional information request signal.
Preferably, the wireless live broadcast device that the embodiment of the invention provides also comprises: data buffer storage unit is used for described video and/or audio signal of buffer memory and described positional information when described transmission unit communication disruption.
Preferably, the location information acquiring unit in the embodiment of the invention comprises: the gps signal receiver module is used for according to described positional information request signal receiving world locational system gps signal; The satellite information generation module is used for calculating and generate gps satellite information according to described gps signal; The positional information generation module is used for directly generating described positional information according to described gps satellite information.
Preferably, the location information acquiring unit in the embodiment of the invention comprises: the gps signal receiver module is used for according to described positional information request signal receiving world locational system gps signal; The satellite information generation module is used for calculating and generating gps satellite information and described gps satellite information is sent to location server according to described gps signal; The positional information receiver module is used to receive the described positional information that described location server returns.
Preferably, the video reception unit during the embodiment of the invention is carried also is used for receiving by cordless communication network the video and/or audio signal of described control end and realizes interactive communication.
Preferably, the wireless live broadcast device that the embodiment of the invention provides also comprises: data storage cell, be used to store video information and and the corresponding positional information of described video information; The service request unit is used for and will sends to location server with the request Map Services with the corresponding positional information of described video information; Display unit, it is that return with the corresponding map datum in position described video information and carry out map and show to be used to receive described location server.
Preferably, the service request unit in the embodiment of the invention also is used for sending to location server with the request path service with obtaining described camera-shooting and recording device current position information with the corresponding positional information of described video information and location information acquiring unit; Described display unit also is used to receive route guidance information that described location server the returns guiding that shows paths.
The embodiment of the invention has also proposed a kind of wireless live broadcast system, comprise: camera-shooting and recording device, video shunting server and above-mentioned wireless live broadcast device, described wireless live broadcast device links to each other with described camera-shooting and recording device by data wire, and link to each other by cordless communication network and described video shunting server, the video and/or audio signal that described camera-shooting and recording device is used for collecting sends to described wireless live broadcast device; Described video shunting server comprises: the Data Receiving unit is used for receiving the described video and/or audio signal of packing after compressing from described wireless live broadcast device; The decoding dividing cell is used for described video and/or audio signal is decoded the back shunting to different playback terminals.
The embodiment of the invention only need adopt common camera-shooting and recording device just can finish various on-the-spot broadcasting, therefore not only greatly reduces live cost, and has portability; The embodiment of the invention has adopted cordless communication network to realize uploading of video/audio signal and distribute in addition, therefore, as long as in mobile network's coverage of operator, it is live just can to carry out live video anywhere or anytime, makes the embodiment of the invention have very high mobility.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of wireless live broadcast device that Fig. 1 provides for the embodiment of the invention one;
The structural representation of a kind of wireless live broadcast device that Fig. 2 provides for the embodiment of the invention two;
The structural representation of a kind of location information acquiring unit that Fig. 3 provides for the embodiment of the invention two;
The structural representation of the another kind of location information acquiring unit that Fig. 4 provides for the embodiment of the invention two;
The workflow diagram that obtains the camera-shooting and recording device positional information that Fig. 5 provides for the embodiment of the invention two;
The structural representation of a kind of wireless live broadcast device that Fig. 6 provides for the embodiment of the invention three;
The structure chart of a kind of wireless live broadcast system that Fig. 7 provides for the embodiment of the invention four;
A kind of video that Fig. 8 provides for the embodiment of the invention four is shunted the structural representation of server;
The flow chart of a kind of wireless live broadcast method that Fig. 9 provides for the embodiment of the invention five;
The flow chart of a kind of wireless live broadcast method that Figure 10 provides for the embodiment of the invention six.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one
Be illustrated in figure 1 as the structural representation of a kind of wireless live broadcast device that the embodiment of the invention one provides, this wireless live broadcast device 100 comprises as the lower part: video reception unit 110, coding unit 120, transmission unit 130 and control unit 140, wherein, coding unit 120 links to each other with video reception unit 110 and transmission unit 130 respectively, and control unit 140 then links to each other with video reception unit 110, coding unit 120 and transmission unit 130 respectively.
In the present embodiment, the cordless communication network kind that transmission unit is supported can have multiple, such as: WiMAX inserts (Wireless Broadband Accessservice, WIBRO) network, worldwide interoperability for microwave inserts (Worldwide Interoperabil ity for Microwave Access, WIMAX) network, WiMAX WIFI network, time-division, synchronous code division multiple access inserted (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA) network, Wideband Code Division Multiple Access (WCDMA) inserts (Wideband CDMA, WCDMA) network, code division multiple access inserts 2000 (CDMA2000) network etc.
As one embodiment of the present of invention, in order to insert the wireless network of above-mentioned operator, the wireless live broadcast device 100 of present embodiment can built-in PPP dialing unit, and support transmission control protocol/internet interconnection protocol (Transmission Control Protocol/Internet Protocol simultaneously, TCP/IP), (the Post Office Protocol 3 of Post Office Protocol 3, POP3), be Simple Mail Transfer protocol (Simple Mail Transfer Protocol, SMTP), dynamic IP etc.
Certainly, the wireless live broadcast device 100 of the embodiment of the invention supports also that except being undertaken the uploading in real time of video by cordless communication network being connected to the Internet in wired mode carries out uploading in real time of capture video.
The embodiment of the invention only need adopt common camera-shooting and recording device just can finish various on-the-spot broadcasting, therefore not only greatly reduces live cost, and has portability; The embodiment of the invention has adopted cordless communication network to realize uploading of video/audio signal and distribute in addition, therefore, as long as in mobile network's coverage of operator, it is live just can to carry out live video anywhere or anytime, makes the embodiment of the invention have very high mobility.
Embodiment two
Be illustrated in figure 2 as the structural representation of a kind of wireless live broadcast device that the embodiment of the invention two provides, this wireless live broadcast device 200 comprises: video reception unit 210, coding unit 220, transmission unit 230, position requests unit 240, location information acquiring unit 250, data buffer storage unit 260 and control unit 270.Wherein, coding unit 220 links to each other with video reception unit 210, transmission unit 230, location information acquiring unit 250 and data buffer storage unit 260 respectively; 240 of position requests unit link to each other with location information acquiring unit 250; Control unit 270 links to each other with other all unit respectively.
Similar among video reception unit 210 and the embodiment one, just no longer given unnecessary details at this.
As one embodiment of the present of invention, location information acquiring unit 250 can independent completing place information generation and obtain, be illustrated in figure 3 as the structural representation of a kind of location information acquiring unit that the embodiment of the invention two provides, it comprises as the lower part: gps signal receiver module 251, satellite information generation module 253 and positional information generation module 255 link to each other between them successively.
The positional information request signal that the user that gps signal receiver module 251 is used for receiving according to position requests unit 240 imports receives the gps signal that satellite sends, and this gps signal is sent to satellite information generation module 253.
Satellite information generation module 253 calculates according to above-mentioned gps signal and generates gps satellite information, and this gps satellite information is sent to positional information generation module 255.
255 above-mentioned gps satellite information of positional information generation module directly generate the positional information at the current place of camera-shooting and recording device.
As an alternative embodiment of the invention, location information acquiring unit 250 also can cooperate obtaining of completing place information with location server.Be illustrated in figure 4 as the structural representation of the another kind of location information acquiring unit that the embodiment of the invention two provides, this location information acquiring unit 250 comprises as the lower part: gps signal receiver module 251, satellite information generation module 253 and positional information receiver module 257 link to each other between gps signal receiver module 251 and the satellite information generation module 253.
Similar among the effect of gps signal receiver module 251 and satellite information generation module 253 and Fig. 3, just no longer given unnecessary details at this.
Positional information receiver module 257 is used for the camera-shooting and recording device current position information that the receiving position server returns.
The concrete workflow of obtaining the camera-shooting and recording device positional information in the present embodiment can be referring to Fig. 5:
Step 501: the control unit 270 of wireless live broadcast device 200 detects whether receive the positional information request signal that the user imports, and then enters step 502 as if receiving, does not then repeat this step if receive;
Step 502:GPS signal receiving module 251 receives the gps signal that satellite sends;
Step 503: satellite information generation module 253 generates gps satellite information according to gps signal;
Step 504: satellite information generation module 253 sends to location server with the gps satellite information that generates;
Step 505: location server generates the positional information at camera-shooting and recording device place according to gps satellite information;
Step 506: location server home position information is to the positional information receiver module 257 of wireless live broadcast device 200.
Owing to also comprised the positional information of camera-shooting and recording device in the video information that the wireless live broadcast device of the embodiment of the invention obtains simultaneously, make the embodiment of the invention to provide a series of services for the user based on this positional information, this can be introduced in the following embodiments, also can make spectators understand the definite geographical position of this live video simultaneously.
In the present embodiment, coding unit 220 also can also be encoded the positional information that location information acquiring unit 250 gets access to except the encoding video signal that meeting receives video reception unit 210, and then to its compression of packing.
230 of transmission units will be shunted server by the video that cordless communication network sends to control end together through the positional information of vision signal after the packing compression and camera-shooting and recording device, be shunted to each playback terminal by this video shunting server again.
Data buffer storage unit 260 is used for above-mentioned vision signal of buffer memory and positional information when transmission unit 230 communication disruption.Specifically, be buffer memory through vision signal and positional information after coding unit 220 codings and the packing compression, certainly, it also can the buffer memory un-encoded and the vision signal and the positional information of packing compression, when needs use this data cached, the operation of the compression of again it being encoded and packs.The embodiment of the invention has adopted data buffer storage unit 260, makes the continuous biography that can carry out data when communication disruption is recovered, and needn't restart to send all data.
Embodiment three
Be illustrated in figure 6 as the structural representation of a kind of wireless live broadcast device that the embodiment of the invention three provides, this wireless live broadcast device 600 comprises: video reception unit 610, coding unit 620, transmission unit 630, position requests unit 640, location information acquiring unit 650, data buffer storage unit 660, display unit 670, service request unit 680 and data storage cell 690, certainly, the wireless live broadcast device of the embodiment of the invention also comprises a control unit, it links to each other respectively with other unit, does not illustrate in Fig. 6.
Similar among the effect of video reception unit 610, coding unit 620, transmission unit 630, position requests unit 640, location information acquiring unit 650 and data buffer storage unit 660 and the embodiment two, just no longer given unnecessary details at this.
As one embodiment of the present of invention, storage video recording and positional information can be stored in mode as shown in Table 1 in the data storage cell 690:
| Video recording | Positional information |
| Video recording 1 | ??(X1，Y1，Z1) |
| Video recording 2 | ??(X2，Y2，Z2) |
| Video recording 3 | ??(X3，Y3，Z3) |
| ??…… | ??…… |
Table one
It is that return with the corresponding map datum in position above-mentioned video information and carry out map and show that display unit 670 is used for the receiving position server.This display unit 670 can be a LED display, can show the position, spot for photography of video recording intuitively by this display unit 670, thereby makes things convenient for the user to find this position.
As one embodiment of the present of invention, service request unit 680 also be used for with the corresponding positional information of above-mentioned video information and location information acquiring unit 650 to camera-shooting and recording device (user) current position information send to location server with the request path service.When promptly the user need know path between the video recording places of being stored in own current location and the wireless live broadcast device 600, can initiate this service request here, by service request unit 680.
Location server is after receiving the path service request of service request unit 680, the optimal path between the current location of stating the user and video recording position is counted in accounting in, then according to the optimal path generation pass navigation information that calculates, and with this route guidance feedback information to wireless live broadcast device 600.
At this moment, display unit 670 also is used for route guidance information that the receiving position server the returns guiding that shows paths.
In the present embodiment, cooperate the service of above-mentioned Map Services and path, the user can make things convenient for the position of finding the video recording of wireless live broadcast device 600 stored intuitively.
As one embodiment of the present of invention, certain user's wireless live broadcast device 600 can with the video recording of its stored and positional information by transmission unit 630 in cordless communication network is sent to other users' wireless live broadcast device, thereby conveniently share captured video of user and positional information.
We know, in some major accident the scene take place, and are carrying out the live while, preferably can also carry out interactive communication to make things convenient for command scheduling.The wireless live broadcast device 600 of the embodiment of the invention is given on the basis of control end can transmitting video, and interactive communication can also be realized by the video and/or audio signal that cordless communication network receives described control end in its video reception unit 610.
Like this, can strengthen control, reduce the loss of lives and properties the scene of the accident.
Embodiment four
The structure chart of a kind of wireless live broadcast system that is illustrated in figure 7 as that the embodiment of the invention four provides, this wireless live broadcast system comprises: camera-shooting and recording device 710, wireless live broadcast device 720 and video shunting server 730, wireless live broadcast device 720 links to each other with camera-shooting and recording device 710 by data wire, and links to each other with video shunting server 730 by cordless communication network 740.
Camera-shooting and recording device 710 can be the equipment of any band video and audio frequency output, such as the television broadcasting video camera that is specialty, or individual's hand-held camera etc.Wireless live broadcast device 720 can be arbitrary described wireless live broadcast device among the embodiment one to embodiment three, has just no longer given unnecessary details at this.
In the present embodiment, video shunting server 730 has comprised Data Receiving unit 731 and Data Receiving unit 732, is connected to each other between them.
Decoding dividing cell 732, be used for giving different playback terminals with shunting behind the above-mentioned decoding video signal, certainly, if Data Receiving unit 731 also receives the positional information of wireless live broadcast device 720 simultaneously, the decoding dividing cell simultaneously also can be to the shunting of decoding of this positional information.The triage operator of this decoding dividing cell 732 can be that active shunt also can be passive shunting, so-called active shunt is given fixing playback terminal with its shunting after vision signal is decoded at once, and passive shunting is a playing request of waiting for terminal, more decoded video is sent to playback terminal after receiving this playing request.Playback terminal in the present embodiment can be any terminal with video or voice playing function, such as PC, mobile phone, personal digital assistant (Personal Digital Assistant, PDA) etc.
In order to realize above-mentioned passive triage operator, the video shunting server 730 of the embodiment of the invention also comprises (as shown in Figure 8):
Video recording memory cell 733, video information and positional information that storage is received from wireless live broadcast device 720.
Transmission request receiving element 734 is used to receive the request of the video recording transmission that the user sends, and this user can be various playback terminals, also can be the embodiment of the invention one to embodiment three described wireless live broadcast device.
At this moment, the request that decoding dividing cell 732 can be received according to transmission request receiving element 734 is selected the video information and the positional informations of coupling in video recording memory cell 733, and sends to and send requesting users.
As one embodiment of the present of invention, video shunting server 730 can also comprise:
Video recording sends monitoring unit 736, is used for the transmission situation of monitoring video when sending video recording for the user, the destination that record sends, the other side's IP address, and whether monitoring video is cut and relay in the transmission way.
The imprinting editor repairs unit 737, is used for the work that decoded video recording is done copy, editor and repaired.
Delay cell 738 is used for last monitoring is done in decoded video recording when playing, will play the reproduction time of transmitting messages of video recording and do to postpone (default value is two minutes), if like this monitor staff to find that play content has illegal, broadcast immediately can stop to transmit messages.
Whether state detection unit 739, being used to detect wireless live broadcast device 720 has video recording to send to video shunting server 730.
Embodiment five
Be illustrated in figure 9 as the flow chart of a kind of wireless live broadcast method that the embodiment of the invention five provides, this method is described from this side of wireless live broadcast device, and this method comprises the steps:
S101: receive the vision signal that camera-shooting and recording device sends.
Because the wireless live broadcast device is directly ined succession by data wire mutually with camera-shooting and recording device in actual use, therefore its vision signal of can unconditional direct reception camera-shooting and recording device sending, certainly, it also can be controlled by the user and select when to begin from the camera-shooting and recording device receiving video signals, press live button on the wireless live broadcast device such as the user, the wireless live broadcast device just begins by data wire from the camera-shooting and recording device receiving video signals.
S102: encoding video signal and packing compression back are shunted server by the video that cordless communication network is sent to control end, so that this vision signal is branched to different playback terminals.
At first, the wireless live broadcast device can be encoded to the vision signal that receives among the step S101 and be packed squeeze operation, coding can adopt multiple in the world general coding standard at present, such as H.261, H.264 wait, in order to obtain the video of high definition, preferably can adopt H.264 coding standard.And handle in the packing compression, the embodiment of the invention has adopted the technology that video, audio frequency are packed respectively and compressed, and can reduce the amount of information of losing like this when data upload when video is shunted server packet loss takes place, and can accelerate uploading speed.
And then will shunt server by the video that cordless communication network is sent to control end through packing compression processed video signal, by video shunting server this vision signal is branched to different playback terminals.Cordless communication network kind in the present embodiment can have multiple, such as: WIBRO network, WIMAX network, WIFI network, TD-SCDMA network, WCDMA network, CDMA2000 network etc.
As one embodiment of the present of invention, in order to insert the wireless network of above-mentioned operator, the wireless live broadcast device 100 of present embodiment can built-in PPP dialing unit, and support transmission control protocol/internet interconnection protocol (Transmission Control Protocol/Internet Protocol simultaneously, TCP/IP), (the Post Office Protocol 3 of Post Office Protocol 3, POP3), be Simple Mail Transfer protocol (Simple Mail Transfer Protocol, SMTP), dynamic IP etc.
Certainly, the embodiment of the invention supports also that except being undertaken the uploading in real time of video by cordless communication network being connected to the Internet in wired mode carries out uploading in real time of capture video.
The embodiment of the invention only need adopt common camera-shooting and recording device just can finish various on-the-spot broadcasting, therefore not only greatly reduces live cost, and has portability; The embodiment of the invention has adopted cordless communication network to realize uploading of video/audio signal and distribute in addition, therefore, as long as in mobile network's coverage of operator, it is live just can to carry out live video anywhere or anytime, makes the embodiment of the invention have very high mobility.
Embodiment six
The flow chart of a kind of wireless live broadcast method that provides for the embodiment of the invention six as shown in figure 10, this method also is described from this side of wireless live broadcast device, and this method comprises the steps:
S201: receive the vision signal that camera-shooting and recording device sends, this step and embodiment five are similar.
S202: receive user's input with the corresponding positional information request signal of camera-shooting and recording device.
This positional information is corresponding with camera-shooting and recording device, is the position at the current place of camera-shooting and recording device.Same, in specific implementation, can send positional information request signal to the wireless live broadcast device by a location information request button of pressing on the wireless live broadcast device.
S203: obtain the camera-shooting and recording device current position information according to positional information request signal.
As one embodiment of the present of invention, can obtain the camera-shooting and recording device current position information in the following manner:
Mode one: according to positional information request signal receiving world locational system gps signal; Calculate and generate gps satellite information again according to this gps signal; Directly generate the camera-shooting and recording device current position information according to gps satellite information by the wireless live broadcast device at last.
Mode two: according to positional information request signal receiving world locational system gps signal; Calculate and generate gps satellite information again according to this gps signal and the gps satellite information that generates is sent to location server; The camera-shooting and recording device current position information that reception is returned by location server.
S204: above-mentioned vision signal and positional information are stored to data buffer.This step can be so that can carry out the continuous biography of data when communication disruption is recovered, and needn't restart to send all data.
S205: above-mentioned vision signal and the positional information compression back of encoding and pack is sent to video shunting server by cordless communication network, shunts to each playback terminal by this video shunting server.
As one embodiment of the present of invention, in above-mentioned wireless live broadcast method overall process, the user can also realize interactive communication by video or the audio signal that cordless communication network receives control end.Can strengthen control like this, reduce the loss of lives and properties some scene of the accident.
It is pointed out that the embodiment of the invention does not limit the order of above-mentioned steps,, can realize purpose of the present invention too, also belong within the scope of the embodiment of the invention even change has taken place some step.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, can instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a wireless live broadcast method is characterized in that, described method comprises:
Receive the video and/or audio signal that camera-shooting and recording device sends;
Described video and/or audio signal encode and pack compression back is sent to the video shunting server of control end by cordless communication network, so that described video and/or audio signal is branched to different playback terminals.
2. wireless live broadcast method as claimed in claim 1 is characterized in that, also comprises:
Receive user's input with the corresponding positional information request signal of described camera-shooting and recording device;
Obtain described camera-shooting and recording device current position information according to described positional information request signal.
3. wireless live broadcast method as claimed in claim 2 is characterized in that, after the video and/or audio signal that described reception camera-shooting and recording device sends, also comprises:
Described video and/or audio signal and described positional information are stored to data buffer.
4. wireless live broadcast method as claimed in claim 3 is characterized in that, describedly obtains described camera-shooting and recording device current position information according to described positional information request signal and comprises:
According to described positional information request signal receiving world locational system gps signal;
Calculate and generate gps satellite information according to described gps signal;
Directly generate described positional information according to described gps satellite information.
5. wireless live broadcast method as claimed in claim 3 is characterized in that, describedly obtains described camera-shooting and recording device current position information according to described positional information request signal and comprises:
According to described positional information request signal receiving world locational system gps signal;
Calculate and generate gps satellite information and described gps satellite information is sent to location server according to described gps signal;
Receive the described positional information that described location server returns.
6. as claim 4 or 5 described wireless live broadcast methods, it is characterized in that, described described video and/or audio signal encode and pack compression back is sent to video shunting server by cordless communication network and comprises:
Described video and/or audio signal and the described positional information compression back of encoding and pack is sent to video shunting server by cordless communication network.
7. wireless live broadcast method as claimed in claim 1 is characterized in that, also comprises:
The video and/or audio signal that receives described control end by cordless communication network is realized interactive communication.
8. a wireless live broadcast device is characterized in that, comprising:
The video reception unit is used to receive the video and/or audio signal that camera-shooting and recording device sends;
Coding unit is used for the compression of encoding and pack of described video and/or audio signal;
Transmission unit is used for the described video and/or audio signal after the packing compression is shunted server by the video that cordless communication network is sent to control end, so that described video and/or audio signal is branched to different playback terminals;
Control unit is used to control described video reception unit, described coding unit and described transmission unit and finishes separately operation.
9. wireless live broadcast device as claimed in claim 8 is characterized in that, also comprises:
The position requests unit, be used to receive user's input with the corresponding positional information request signal of described camera-shooting and recording device;
Location information acquiring unit is used for obtaining described camera-shooting and recording device current position information according to described positional information request signal.
10. wireless live broadcast device as claimed in claim 9 is characterized in that, also comprises:
Data buffer storage unit is used for described video and/or audio signal of buffer memory and described positional information when described transmission unit communication disruption.
11. wireless live broadcast device as claimed in claim 10 is characterized in that, described location information acquiring unit comprises:
The gps signal receiver module is used for according to described positional information request signal receiving world locational system gps signal;
The satellite information generation module is used for calculating and generate gps satellite information according to described gps signal;
The positional information generation module is used for directly generating described positional information according to described gps satellite information.
12. wireless live broadcast device as claimed in claim 10 is characterized in that, described location information acquiring unit comprises:
The gps signal receiver module is used for according to described positional information request signal receiving world locational system gps signal;
The satellite information generation module is used for calculating and generating gps satellite information and described gps satellite information is sent to location server according to described gps signal;
The positional information receiver module is used to receive the described positional information that described location server returns.
13. wireless live broadcast device as claimed in claim 8 is characterized in that,
Described video reception unit also is used for receiving by cordless communication network the video and/or audio signal of described control end and realizes interactive communication.
14. wireless live broadcast device as claimed in claim 9 is characterized in that, also comprises:
Data storage cell, be used to store video information and and the corresponding positional information of described video information;
The service request unit is used for and will sends to location server with the request Map Services with the corresponding positional information of described video information;
Display unit, it is that return with the corresponding map datum in position described video information and carry out map and show to be used to receive described location server.
15. wireless live broadcast device as claimed in claim 14 is characterized in that,
Described service request unit also be used for with the corresponding positional information of described video information and location information acquiring unit to described camera-shooting and recording device current position information send to location server with the request path service;
Described display unit also is used to receive route guidance information that described location server the returns guiding that shows paths.
16. wireless live broadcast system, it is characterized in that, comprise: camera-shooting and recording device, video shunting server and as the arbitrary described wireless live broadcast device of claim 8-15, described wireless live broadcast device links to each other with described camera-shooting and recording device by data wire, and link to each other by cordless communication network and described video shunting server
The video and/or audio signal that described camera-shooting and recording device is used for collecting sends to described wireless live broadcast device;
Described video shunting server comprises:
The Data Receiving unit is used for receiving the described video and/or audio signal of packing after compressing from described wireless live broadcast device;
The decoding dividing cell is used for described video and/or audio signal is decoded the back shunting to different playback terminals.
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| CN 200910093109 CN101674476A (en) | 2009-09-18 | 2009-09-18 | Method, device and system for wireless live broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910093109 CN101674476A (en) | 2009-09-18 | 2009-09-18 | Method, device and system for wireless live broadcast |
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| CN101674476A true CN101674476A (en) | 2010-03-17 |
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| CN 200910093109 Pending CN101674476A (en) | 2009-09-18 | 2009-09-18 | Method, device and system for wireless live broadcast |
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