CN104836672B - The method, apparatus of data transmission, system and terminal device in multi-screen interactive - Google Patents

The method, apparatus of data transmission, system and terminal device in multi-screen interactive Download PDF

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CN104836672B
CN104836672B CN201410046745.1A CN201410046745A CN104836672B CN 104836672 B CN104836672 B CN 104836672B CN 201410046745 A CN201410046745 A CN 201410046745A CN 104836672 B CN104836672 B CN 104836672B
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data transmission
terminal applies
transmission
threshold
delay
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CN104836672A (en
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郭晓岩
刘聪
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Abstract

The invention discloses method, apparatus, system and the terminal devices of data transmission in a kind of multi-screen interactive to streamline the network resource when carrying out multi-screen interactive between terminal device, improve the service efficiency of Internet resources.Wherein, in multi-screen interactive data transmission method, including：Sending ending equipment is when receiving multi-screen interactive request, according to the transmission policy information obtained from strategic server, it determines the data transfer mode corresponding to the terminal applies of itself load, the identification information for each receiving device for carrying out multi-screen interactive with sending ending equipment is carried in the multi-screen interactive request；The receiving device corresponding with each identification information establishes connection to the sending ending equipment respectively, and according to the data transfer mode determined to each receiving device transmission data.

Description

The method, apparatus of data transmission, system and terminal device in multi-screen interactive
Technical field
The present invention relates to the method, apparatus of data transmission in terminal applies technical field more particularly to a kind of multi-screen interactive, System and terminal device.
Background technology
With the development of terminal technology, terminal form is also more and more abundant, such as TV, computer, tablet computer, mobile phone, throwing Shadow instrument etc., and with the development of the communication technology, the terminal device of above-mentioned each form can also support Wireless LAN (WLAN, Wireless Local Area Networks), with the enhancing of terminal unit ability so that the screen between terminal device is interactive It is possibly realized.Multi-screen interactive refers to using technical transmissions such as wireless transmissions by the content shown by a station terminal device screen to separately It is shown on one terminal device, while the screen display of receiving device is carried out the operation such as controlling by sending ending equipment.
The prior art gives the implementation method of multi-screen interactive：Sending ending equipment is being loaded with terminal applies（Such as PPT, depending on Frequency or game on line）Later, crawl current screen shows content and is packaged is sent to receiving device, receiving terminal by network Equipment is parsed and is shown after reception of the data packet.
The method of above-mentioned multi-screen interactive, for all types of applications that all terminal devices are loaded, using fixation side Formula is transmitted, since different types of terminal applies are different to the reliability requirement of network transmission, as video class is applied than PPT Class is applied and wants low to network transmission reliability requirement, but video class is applied than PPT class using the requirement to network transmission speed Want high, it is clear that the use to Internet resources is caused not using identical transmission mode to all types in the prior art Rationally, the service efficiency of Internet resources is reduced.
Invention content
The embodiment of the present invention provides method, apparatus, system and the terminal device of data transmission in a kind of multi-screen interactive, to When carrying out multi-screen interactive between terminal device, streamlines the network resource, improve the service efficiency of Internet resources.
The method that the embodiment of the present invention provides data transmission in a kind of multi-screen interactive, including：
Sending ending equipment is when receiving multi-screen interactive request, according to the transmission policy information obtained from strategic server, It determines the data transfer mode corresponding to the terminal applies of itself load, carries in the multi-screen interactive request and set with transmitting terminal The identification information of the standby each receiving device for carrying out multi-screen interactive；
The receiving device corresponding with each identification information establishes connection to the sending ending equipment respectively, and according to determining Data transfer mode is to each receiving device transmission data.
The embodiment of the present invention provides a kind of device of data transmission in multi-screen interactive, is set in terminal device, including：
Determination unit, for when receiving multi-screen interactive request, being believed according to the transmission strategy obtained from strategic server Breath, the data transfer mode corresponding to terminal applies that terminal device where determining itself loads, in the multi-screen interactive request Carry the identification information for each terminal device that multi-screen interactive is carried out with terminal device where itself；
Connection establishment unit is set for terminal corresponding with each identification information carried in multi-screen interactive request respectively It is standby to establish connection；
Data transmission unit, each end that the data transfer mode for being determined according to the determination unit is connected to foundation End equipment transmission data.
The embodiment of the present invention provides a kind of terminal device, including in above-mentioned multi-screen interactive data transmission device.
The system that the embodiment of the present invention provides data transmission in a kind of multi-screen interactive, including：
Strategic server, for providing transmission policy information；
Terminal device, for from receive multi-screen interactive ask when, according to the transmission strategy obtained from strategic server Information determines the data transfer mode corresponding to the terminal applies of itself load, is carried and oneself in the multi-screen interactive request Body carries out the identification information of each terminal device of multi-screen interactive；And each terminal device corresponding with the identification information is built respectively Vertical connection, and each terminal device transmission data connected to foundation according to the data transfer mode determined.
The method, apparatus of data transmission, system and terminal device, work as transmission in multi-screen interactive provided in an embodiment of the present invention When end equipment receives multi-screen interactive request, according to the transmission policy information obtained from strategic server, itself load is determined Data transfer mode corresponding to terminal applies, and multi-screen interactive is carried out to itself according to the data transfer mode determined Receiving device transmission data, in above-mentioned data transmission procedure, due to taking different data to pass for different terminal applies Defeated mode improves the service efficiency of Internet resources so as to more reasonably use Internet resources.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages can be by the explanations write Specifically noted structure is realized and is obtained in book, claims and attached drawing.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the implementation process diagram of the method for data transmission in multi-screen interactive in the embodiment of the present invention；
Fig. 2 is in the embodiment of the present invention, and sending ending equipment obtains transmission strategy from the strategic server of network side in advance The implementation process diagram of information；
Fig. 3 is that the flow diagram of PPT is shared between terminal device in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the device of data transmission in multi-screen interactive in the embodiment of the present invention；
Fig. 5 is the system structure diagram of data transmission in multi-screen interactive in the embodiment of the present invention.
Specific implementation mode
It streamlines the network resource to realize, improves the purpose of the service efficiency of Internet resources, the embodiment of the present invention carries Method, apparatus, system and the terminal device of data transmission in a kind of multi-screen interactive are supplied.
Below in conjunction with Figure of description, preferred embodiment of the present invention will be described, it should be understood that described herein Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this hair The feature in embodiment and embodiment in bright can be combined with each other.
The embodiment of the present invention can be applied in terminal device, such as mobile phone, PDA（Personal Digital Assistant, personal digital assistant）, PC（PC）, tablet computer etc., but not limited to this, those skilled in the art It is readily appreciated that, the embodiment of the present invention applies also in any terminal device with processor and display output device, specifically When implementation, carry out that multi-screen interactive client-side program is installed in the terminal device of multi-screen interactive.
Embodiment one
In order to achieve the object of the present invention, in the embodiment of the present invention, network side strategic server is directed to different types of end End application, determines its corresponding transmission policy information.Preferably, when it is implemented, strategic server can be, but not limited to basis Terminal applies are divided into following three types by requirement of the terminal applies to data transmission real-time：If terminal applies can be held The data transmission delay born is no more than the first delay threshold（It can be, but not limited to be set as 500ms）When, determine the terminal applies For high real-time terminal applies, such as the terminal applies of video and game class；If when the data transmission that terminal applies can be tolerated Prolong more than the first delay threshold and is no more than the second delay threshold（It can be, but not limited to be set as 800ms）When, determine the terminal Using for medium real-time terminal applies, such as PPT or caricature class terminal applies；If the data that the terminal applies can be tolerated When propagation delay time is more than the second delay threshold, determine that the terminal applies are low real-time terminal applies, such as document class terminal applies, Including Word document, Excel document or PDF document etc..Correspondingly, the transmission policy information determined of strategic server can be with For：For high real-time terminal applies and medium real-time terminal applies, strategic server determines that it uses RTP（Real-time Transmission Agreement）Carry out data transmission, and for low real-time terminal applies, determine that it uses HTTP（Hypertext transfer protocol）Or FTP（File Transfer Protocol）Carry out data transmission.For the ease of management, strategic server can be the terminal applies of each type An application identities are distributed, for example, determining that the corresponding application identities of high real-time terminal applies are 1, determine that medium real-time is whole The end corresponding application identities of application are 2, determine that the corresponding application identities of low real-time terminal applies are 3, and establish application identities With the correspondence between corresponding transmission mode, then the corresponding pass that strategic server can be established according to the storage of the format of table 1 System：
Table 1
When it is implemented, strategic server can also be according to actual conditions, to the data update in table 1.
Based on this, an embodiment of the present invention provides a kind of methods of data transmission in screen locking interaction, as shown in Figure 1, can be with Include the following steps：
S101, sending ending equipment are when receiving multi-screen interactive request, according to the transmission strategy obtained from strategic server Information determines the data transfer mode corresponding to the terminal applies of itself load.
Wherein, the mark for each receiving device that multi-screen interactive is carried out with sending ending equipment is carried in multi-screen interactive request Information.
The receiving device corresponding with each identification information establishes connection respectively for S102, sending ending equipment, and according to determining Data transfer mode to each receiving device transmission data.
The present invention implement provide above-mentioned flow in, in step S101 sending ending equipment obtain transmit policy information when, The mode obtained in advance may be used, i.e., in sending ending equipment before receiving multi-screen interactive request, from the strategy clothes of network side It is obtained in business device；It can also be by the way of obtaining in real time, i.e., after sending ending equipment receives multi-screen interactive request, in real time Ground is obtained from the strategic server of network side.In two kinds of acquisition modes, the mode for obtaining transmission policy information in advance is opposite In the real-time mode for obtaining transmission policy information, the waiting that sending ending equipment carries out multi-screen interactive with receiving device can be reduced Time delay.
Specifically, sending ending equipment obtains the process of transmission policy information from the strategic server of network side in advance, such as Shown in Fig. 2, include the following steps：
S201, sending ending equipment send the subscription request for subscribing to transmission policy information to strategic server.
It after S202, strategic server receive subscription request, is asked according to the subscription, in the transmission for monitoring itself storage When strategy sends variation, to sending ending equipment feedback transmission policy information.
S203, sending ending equipment receive and store the transmission policy information of strategic server feedback.
So far, sending ending equipment terminates from the flow of strategic server acquisition transmission policy information.
Transmission policy information based on acquisition, sending ending equipment need to set with other terminals receiving multi-screen interactive request When carrying out multi-screen interactive between standby, sending ending equipment obtains the application identities corresponding to the terminal applies of itself load, specifically, hair Sending end equipment can call the application identities of multi-screen interactive client-side program interface acquisition terminal applies.According to the application mark of acquisition Know, from the transmission policy information of acquisition（That is correspondence shown in table 1）The corresponding transmission mode of middle lookup application identities.Example Such as, if the terminal applies that sending ending equipment currently loads are video file, since video class application refreshing frame per second is very high, logarithm It is also high according to the requirement of real-time of transmission, therefore it belongs to high real-time terminal applies, application identities 1, according to table 1 it is found that Its corresponding transmission mode is to be carried out data transmission using Real-time Transport Protocol, specifically, sending ending equipment can be, but not limited to use The mode of RTP OVER UDP carries out data transmission.
Embodiment two
With the development of intelligent terminal technology, more and more terminal devices support Wireless LAN (WLAN, Wireless Local Area Networks) and mobile communications network（It can be, but not limited to include TD-SCDMA（Time division synchronous CDMA）And TD-LTE（Time-division long term evolution））Etc. a variety of Radio Transmission Technologys, therefore, if sending ending equipment and receiving terminal When equipment supports WLAN and mobile communications network to carry out data transmission, in order to more streamline the network resource, network is improved The service efficiency of resource, can be according to default before sending ending equipment establishes connection with receiving device in the embodiment of the present invention Network selection policy selection network carry out data transmission.Preferably, in the embodiment of the present invention, sending ending equipment is built with receiving device Before vertical connection, the signal strength of WLAN and mobile communications network are obtained respectively, according to the signal strength of acquisition, selection signal is strong Spend strong network and each receiving device and establish and connect, and according to the transmission mode determined by the network selected to reception Hold transmission data.
More preferably, sending ending equipment can be combined with the application type progress network selection of the terminal applies currently loaded, Such as the terminal applies of PPT types, since it is higher to the reliability requirement of data transmission, but for the frame of data transmission Rate requirement is relatively low, in this way, sending ending equipment can select mobile communications network to be transmitted, it is reliable to improve data transmission Property.And for video class application, it may be considered that preferential selection WLAN carries out data transmission, to save bandwidth resources.Meanwhile it sending End equipment can be combined with the demand and network quality of terminal applies, and different code rates and resolution ratio is selected to be transmitted.
More preferably, in data transmission procedure, sending ending equipment can also in real time or periodically obtain heterogeneous networks Network signal intensity, if the network signal intensity currently selected is less than the first handoff threshold threshold value of setting, and other networks Network signal intensity higher than setting the second handoff threshold threshold value（Second handoff threshold threshold value is more than the first handoff threshold threshold Value）When, sending ending equipment will carry out network switching, switch to other networks and carry out data transmission.
Embodiment three
Due to the wireless network signals such as WLAN and mobile communications network shakiness, if the network selected according to embodiment two When network quality declines, during sending ending equipment is to receiving device transmission data, data transmission credibility reduces, into And influence the effect of multi-screen interactive.In order to solve this problem, it in the embodiment of the present invention, is set to receiving terminal in sending ending equipment During standby transmission data, data transmission performance indication information is obtained in real time or periodically, in the data transmission of acquisition When performance index information meets preset trigger condition, data transfer mode is adjusted.
Preferably, data transmission performance index can be, but not limited to include any one of following information or arbitrary group It closes：Data transmission error rate or data transmission packet loss, network signal intensity, message transmission rate, data transmission delay.Tool When body is implemented, according to the difference of terminal applies type, different trigger conditions can be set, it specifically can be as follows：
If the data transmission performance indication information obtained is data transmission error rate or data transmission packet loss, and eventually When end application is high real-time terminal applies, the trigger condition of setting adjustment data transfer mode can be：Data transmission error Either data transmission packet loss is more than the first bit error rate threshold or the first packet loss threshold value to rate；Obtained when sending ending equipment Data transmission error rate adjusts number when either data transmission packet loss is more than the first bit error rate threshold or the first packet loss threshold value According to transmission mode, preferably, it is to be carried out using http protocol or File Transfer Protocol that sending ending equipment, which can adjust data transfer mode, Data transmission.
If the data transmission performance indication information obtained is data transmission error rate or data transmission packet loss, and eventually When end application is medium real-time terminal applies, the trigger condition of setting adjustment data transfer mode can be：Data transmission is missed Either data transmission packet loss is more than the second bit error rate threshold or the second packet loss threshold value and is less than or equal to third error code code check Either third packet loss threshold value or data transmission error rate or data transmission packet loss are more than third bit error rate threshold to rate threshold value Value or third packet loss threshold value.Wherein, the first bit error rate threshold or the first packet loss threshold value and the second bit error rate threshold or Person's the second packet loss threshold value can be the same or different.Correspondingly, when sending ending equipment obtain data transmission error rate or Person's data transmission packet loss is more than the second bit error rate threshold or the second packet loss threshold value but is less than or equal to third bit error rate threshold Or when third packet loss threshold value, it is to be carried out data transmission using Transmission Control Protocol that can adjust data transfer mode；When transmitting terminal is set Either data transmission packet loss is more than third bit error rate threshold or third packet loss threshold value to the standby data transmission error rate obtained When, it is to be carried out data transmission using http protocol or File Transfer Protocol that can adjust data transfer mode.
If the data transmission performance indication information obtained is network signal intensity and terminal applies are high real-time terminal In application, the trigger condition of setting adjustment data transfer mode can be：Network signal intensity is no more than the first signal strength threshold Value；Data transfer mode is adjusted when the network signal intensity that sending ending equipment obtains is no more than the first signal strength threshold, Preferably, it is to be carried out data transmission using http protocol or File Transfer Protocol that sending ending equipment, which can adjust data transfer mode,.
If the data transmission performance indication information obtained is network signal intensity and terminal applies are that medium real-time is whole End is in application, the trigger condition of setting adjustment data transfer mode can be：Network signal intensity is no more than second signal intensity Threshold value and it is no more than third signal strength threshold more than third signal strength threshold or network signal intensity.Wherein, the first letter Number intensity threshold can be the same or different with second signal intensity threshold.Correspondingly, when the network of sending ending equipment acquisition When signal strength is no more than second signal intensity threshold but has been more than third signal strength threshold, data transfer mode can be adjusted To use Transmission Control Protocol to carry out data transmission；When the network signal intensity that sending ending equipment obtains is no more than third signal strength threshold When value, it is to be carried out data transmission using http protocol or File Transfer Protocol that can adjust data transfer mode.
If the data transmission performance indication information obtained is message transmission rate and terminal applies are high real-time terminal In application, the trigger condition of setting adjustment data transfer mode can be：Message transmission rate is no more than the first transmission rate threshold Value；Data transfer mode is adjusted when the message transmission rate that sending ending equipment obtains is no more than the first transmission rate threshold, Preferably, it is to be carried out data transmission using http protocol or File Transfer Protocol that sending ending equipment, which can adjust data transfer mode,.
If the data transmission performance indication information obtained is message transmission rate and terminal applies are that medium real-time is whole End is in application, the trigger condition of setting adjustment data transfer mode can be：Message transmission rate is no more than the second transmission rate Threshold value and it is no more than third transmission rate threshold more than third transmission rate threshold or message transmission rate.Wherein, it first passes Defeated rate-valve value can be the same or different with the second transmission rate threshold.Correspondingly, when the data of sending ending equipment acquisition When transmission rate is no more than the second transmission rate threshold but has been more than third transmission rate threshold, data transfer mode can be adjusted To use Transmission Control Protocol to carry out data transmission；When the message transmission rate that sending ending equipment obtains is no more than third transmission rate threshold When value, it is to be carried out data transmission using http protocol or File Transfer Protocol that can adjust data transfer mode.
If the data transmission performance indication information obtained is data transmission delay and terminal applies are high real-time terminal In application, the trigger condition of setting adjustment data transfer mode can be：Data transmission delay is more than the first delay threshold；Work as The data transmission delay that sending ending equipment obtains adjusts data transfer mode when being more than the first delay threshold, preferably, transmitting terminal It is to be carried out data transmission using http protocol or File Transfer Protocol that equipment, which can adjust data transfer mode,.
If the data transmission performance indication information obtained is data transmission delay and terminal applies are that medium real-time is whole End is in application, the trigger condition of setting adjustment data transfer mode can be：Data transmission delay be more than the second delay threshold and It is more than third delay threshold less than or equal to third delay threshold or data transmission delay.Wherein, the first delay threshold and second Delay threshold can be the same or different.Correspondingly, when the data transmission delay that sending ending equipment obtains is more than the second time delay Threshold value but less than or equal to third delay threshold when, can adjust data transfer mode be carried out data transmission using Transmission Control Protocol；When When the data transmission delay that sending ending equipment obtains is more than third delay threshold, it is using HTTP that can adjust data transfer mode Agreement or File Transfer Protocol carry out data transmission.
More preferably, when it is implemented, can be combined at least two indexs in aforementioned four index to current network matter Amount is evaluated, specifically, can be to participating in each setup measures weight of evaluation, and needs are judged whether according to result of calculation Adjust transmission mode.
For low real-time terminal applies, due to its data transmission performance is required it is relatively low, when it is implemented, can with but not It is limited to carry out data transmission using http protocol or File Transfer Protocol always, it should be understood that be directed to low real-time terminal applies, make It is a kind of preferable embodiment of the embodiment of the present invention with http protocol or File Transfer Protocol, when it is implemented, can also use Transmission Control Protocol or Real-time Transport Protocol carry out data transmission.
When it is implemented, more preferably, sending ending equipment can also detect receiving device whether support data storage or Person caches, if receiving device supports storage or the caching of data, sending ending equipment can use http protocol into line number According to transmission, specifically, sending ending equipment can use the mode that HTTP is downloaded, the URL of the terminal applies of itself load is sent To receiving device, after downloading completes, sending ending equipment can synchronize itself to receiving device by remote control technology With the operation of receiving device, such as mouse action, keyboard operation etc. controls the broadcasting of the terminal applies such as video or PPT.
Preferably, sending ending equipment when carrying out data transmission using http protocol, can use HTTPOVER TCP's Mode carries out data transmission.
It more preferably, can be other available with dynamic select if sending ending equipment detects current selection network connection interruption Network establishes connection and transmission data with receiving device.
When it is implemented, sending ending equipment during multi-screen interactive, can send data, screen or control quality To receiving device, meanwhile, sending ending equipment and policy server interaction obtain the corresponding transmission of different types of terminal applies Strategy.Receiving device receives the data that sending ending equipment transmits, and according to the requirement of sending ending equipment, is assisted with transmitting terminal Commercialization is in the transmission mode carried out data transmission.
It in the embodiment of the present invention, needs that terminal applies are identified, determines the corresponding application identities of terminal applies, and will Application identities are supplied to multi-screen interactive client-side program, for the terminal applies that can recognize that, according to what is obtained from network side It transmits policy information and selects data transfer mode, and for the terminal applies of None- identified, it can be according to the data transmission of acquiescence Mode carries out data transmission, and for the terminal applies of None- identified, after having carried out multi-screen interactive, strategic server can update Corresponding application identities.
Example IV
The implementation process of embodiment in order to better understand the present invention, below between terminal device share PPT files be Example, illustrates the implementation process of the embodiment of the present invention, as shown in figure 3, may comprise steps of：
PPT files during S301, sending ending equipment user open in terminal.
S302, sending ending equipment user trigger multi-screen interactive operation.
S303, sending ending equipment identification terminal application type, and after identifying terminal applies type, determine that terminal is answered With corresponding application identities.
In this example, terminal applies are PPT files, belong to medium real-time terminal applies, corresponding application identities are 2。
S304, sending ending equipment search the corresponding transmission side data of the application identities according to the transmission policy information of acquisition Formula.
Specifically, in this example, when according to 1 application identities of table being 2, corresponding data transfer mode is to be assisted using RTP View carries out data transmission.
S305, sending ending equipment select the network carried out data transmission.
Preferable sending ending equipment can obtain current network signal strength, and the strong network of selection signal intensity carries out data Transmission or sending ending equipment can be combined with terminal applies type, and corresponding network is selected to carry out data transmission, in this example, Terminal applies are PPT class applications, more demanding to data transmission credibility, therefore can preferentially select mobile communications network （TD-SCDMA or TD-LTE）It is transmitted.If be wlan network according to the network that network signal intensity is selected, this hair In bright embodiment, the priority that can be selected with setting network, such as setting select the priority of network high according to terminal applies type In the priority for selecting network according to network signal intensity, then in this example, final choice mobile communications network is transmitted.
When it is implemented, step S305 can be executed prior to step S303, that is, select the operation of network can be prior to identification Terminal applies type executes, and can also be carried out at the same time, it is not limited in the embodiment of the present invention.
If when it is implemented, sending ending equipment only support wlan network or only support mobile communications network transmission when, Without executing step S305.
S306, sending ending equipment establish data connection by the network and receiving device of selection.
S307, sending ending equipment use Real-time Transport Protocol to receiving device transmission data.
S308, sending ending equipment obtain data transmission error rate.
Specifically, sending ending equipment can in real time or periodically obtain data transmission error rate.
When it is implemented, sending ending equipment can also be according to network signal intensity, data transmission packet loss, data transmission speed The data transmission performances such as rate or data transmission delay index is to determine whether need to adjust data transfer mode, if any of the above-described When data transmission performance index meets preset trigger condition, sending ending equipment will adjust data transfer mode.
S309, sending ending equipment judge whether the data transmission error rate obtained is more than the first predetermined threshold value, if so, holding Row step S310, if not, executing step S308.
S310, judge whether the data transmission error rate obtained is less than or equal to the second predetermined threshold value, if so, executing step S311, if not, executing step S312.
S311, adjustment data transfer mode are to be carried out data transmission using Transmission Control Protocol, and execute step S308.
S312, adjustment data transfer mode are to be carried out data transmission using http protocol or File Transfer Protocol, and execute step S308。
After adjusting data transfer mode, S308 is returned to step, and carry out according to the data transmission error rate of acquisition The adjustment of data transfer mode, until data transmission finishes.
When it is implemented, sending ending equipment can also in real time or periodically obtain the different type network of itself support Network signal intensity, currently selected network network signal intensity less than setting the first handoff threshold threshold value and other nets When the network signal intensity of network is higher than the second handoff threshold threshold value set, network switching will be carried out, it is good to be switched to network quality Network carry out data transmission.
The embodiment of the present invention is different using the selection of corresponding application identities according to this for different types of terminal applies Data transfer mode, in data transmission procedure, according to network quality situation, when network quality declines, adjustment data pass Defeated mode improves Internet usage efficiency to achieve the purpose that streamline the network resource.
It should be appreciated that it is preferable to carry out data transmission the only embodiment of the present invention using wlan network or mobile communications network Embodiment, the present invention do not limit this, such as the modes such as cable network connection or bluetooth can also be used into line number According to transmission.
Based on same inventive concept, additionally provided in the embodiment of the present invention device of data transmission in a kind of multi-screen interactive, System and terminal device, the principle and data transmission in screen interaction solved the problems, such as due to above-mentioned apparatus, system and terminal device Method is similar, therefore the implementation of above-mentioned apparatus, system and terminal device may refer to the implementation of method, and it is no longer superfluous to repeat place It states.
Embodiment five
As shown in figure 4, for the structural schematic diagram of the device of data transmission in multi-screen interactive provided in an embodiment of the present invention, packet It includes：
Determination unit 401, for receive multi-screen interactive request when, according to the transmission strategy obtained from strategic server Information, the data transfer mode corresponding to terminal applies that terminal device where determining itself loads.
Wherein, it is carried in multi-screen interactive request and each terminal device of terminal device progress multi-screen interactive where itself Identification information.
Connection establishment unit 402 is set for terminal corresponding with each identification information carried in multi-screen interactive request respectively It is standby to establish connection.
Data transmission unit 403, the data transfer mode for being determined according to determination unit 401 connect each to foundation Terminal device transmission data.
Preferably, transmission policy information includes the correspondence of application identities and transmission mode；And
Determination unit 401 may include：
Subelement is obtained, for the application identities corresponding to the terminal applies of terminal device load where obtaining itself；
Subelement is searched, for according to obtaining application identities that subelement obtains from application identities and data transfer mode In correspondence, corresponding data transfer mode is searched, the wherein correspondence of application identities and data transfer mode is strategy What server was established in accordance with the following methods：Strategic server is directed to each terminal applies, if the number that the terminal applies can be tolerated When being no more than the first delay threshold according to propagation delay time, determine that the terminal applies are high real-time terminal applies, and determine the terminal It is first identifier using corresponding application identities；If the data transmission delay that the terminal applies can be tolerated is more than the first time delay threshold When being worth and being no more than the second delay threshold, determine that the terminal applies are medium real-time terminal applies, and determine the terminal applies Corresponding application identities are second identifier；If the data transmission delay that the terminal applies can be tolerated is more than the second delay threshold When, determine that the terminal applies are low real-time terminal applies, and determine that the corresponding application identities of the terminal applies identify for third； Determine that the first identifier and the corresponding data transfer mode of second identifier are to carry out data transmission using RTP；Determine described The corresponding data transfer mode of three marks is to be carried out data transmission using HTTP or FTP.
When it is implemented, the device of data transmission can also be obtained including first in multi-screen interactive provided in an embodiment of the present invention Unit 404 is obtained, wherein：
First obtains unit 404, in data transmission unit 403 to each terminal device transmission data for establishing connection In the process, data transmission performance index is obtained；
Data transmission unit 403, the data transmission performance index for being additionally operable to obtain in first obtains unit 404 meet default Data transfer mode is adjusted when trigger condition.
Preferably, data transmission performance index may include data transmission error rate or data transmission packet loss；And If terminal applies are high real-time terminal applies, preset trigger condition includes：Data transmission error rate or data transmission are lost Packet rate is more than the first bit error rate threshold or the first packet loss threshold value；If terminal applies are medium real-time terminal applies, in advance If trigger condition includes：Either data transmission packet loss is more than the second bit error rate threshold or the second packet loss to data transmission error rate Rate threshold value and either third packet loss threshold value or data transmission error rate or data pass less than or equal to third bit error rate threshold Defeated packet loss is more than third bit error rate threshold or third packet loss threshold value；And
Data transmission unit 403, if can be used for terminal applies is high real-time terminal applies, in data transmission error rate When either data transmission packet loss is more than the first bit error rate threshold or the first packet loss threshold value, adjustment data transfer mode is to make Carried out data transmission with http protocol or File Transfer Protocol；If terminal applies are medium real-time terminal applies, missed in data transmission Either data transmission packet loss is more than the second bit error rate threshold or the second packet loss threshold value and is less than or equal to third error code code check When rate threshold value or third packet loss threshold value, adjustment data transfer mode is to be carried out data transmission using transmission control protocol TCP； When either data transmission packet loss is more than third bit error rate threshold or third packet loss threshold value to data transmission error rate, adjustment Data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
Preferably, data transmission performance index may include network signal intensity；And if terminal applies are high real-time When terminal applies, preset trigger condition includes：Network signal intensity is no more than the first signal strength threshold；During if terminal applies are Etc. real-times terminal applies when, preset trigger condition includes：Network signal intensity is no more than second signal intensity threshold and is more than Third signal strength threshold or network signal intensity are no more than third signal strength threshold；And
Data transmission unit 403, if can be used for terminal applies be high real-time terminal applies, network signal intensity not When more than the first signal strength threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol； If terminal applies are medium real-time terminal applies, it is no more than second signal intensity threshold in network signal intensity and is more than third When signal strength threshold, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；It is no more than in network signal intensity When third signal strength threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
Preferably, data transmission performance index may include message transmission rate；And preset trigger condition includes：Data Transmission rate is no more than the first transmission rate threshold；If terminal applies are medium real-time terminal applies, preset trigger condition Including：Message transmission rate is no more than the second transmission rate threshold and more than third transmission rate threshold or data transmission speed Rate is no more than third transmission rate threshold；And
Data transmission unit 403, if can be used for terminal applies be high real-time terminal applies, message transmission rate not When more than the first transmission rate threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol； If terminal applies are medium real-time terminal applies, it is no more than the second transmission rate threshold in message transmission rate and is more than third When transmission rate threshold, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；It is no more than in message transmission rate When third transmission rate threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
Preferably, data transmission performance index may include data transmission delay；And preset trigger condition includes：Data Propagation delay time is more than third delay threshold；If terminal applies are medium real-time terminal applies, preset trigger condition includes：Number It is more than the 4th delay threshold according to propagation delay time and is more than the 5th time delay less than or equal to the 5th delay threshold or data transmission delay Threshold value；And
Data transmission unit 403 is big in data transmission delay if can be used for terminal applies is high real-time terminal applies When third delay threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol；If terminal Using for medium real-time terminal applies, it is more than the 4th delay threshold in data transmission delay and is less than or equal to the 5th delay threshold When, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；It is more than the 5th delay threshold in data transmission delay When, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
When it is implemented, in multi-screen interactive provided in an embodiment of the present invention data transmission device, can also include control If unit 405 is synchronized carried out data transmission using http protocol for data transmission unit 403 by remote control technology Terminal device where itself and the operation for establishing each terminal device connected.
When it is implemented, in multi-screen interactive provided in an embodiment of the present invention data transmission device, can also include second Obtaining unit 406 and comparing unit 407, wherein：
Second obtaining unit 406, if supporting to use WLAN technologies and mobile communication network technology simultaneously for terminal device Carry out data transmission, before the terminal device corresponding with each identification information establishes connection to connection establishment unit 402 respectively, respectively Obtain the signal strength of WLAN and mobile communications network；
Comparing unit 407, the signal strength for comparing the acquisition of the second obtaining unit 406；
Connection establishment unit 402 can be used for the strong network of selection signal intensity end corresponding with each identification information respectively End equipment establishes connection.
When it is implemented, the second obtaining unit 406, it can be also used for where itself terminal device and establish each of connection During terminal device transmission data, the signal strength of WLAN and mobile communications network are obtained respectively；
Data transmission unit 403, if the signal strength that can be also used for the network being being currently used is less than fourth signal When the signal strength of intensity threshold and another network is higher than five signal strength thresholds, switches to another network and carry out data biography It is defeated, wherein the 5th signal strength threshold is more than fourth signal intensity threshold.
When it is implemented, in multi-screen interactive provided in an embodiment of the present invention data transmission device, can also include：
Subscriber units 408 can be used for sending the subscription request for subscribing to transmission policy information to network side strategic server；
Receiving unit 409 can be also used for reception network side strategic server according to request is subscribed to and transmit strategy transmission The transmission policy information fed back when variation.
It should be noted that the device of data transmission can be arranged in terminal in multi-screen interactive provided in an embodiment of the present invention In equipment, the transmission of data in multi-screen interactive is completed by terminal device.
For convenience of description, above each section is divided by function as each module（Or unit）It describes respectively.Certainly, exist It can be each module when implementing of the invention（Or unit）Function realized in same or multiple softwares or hardware.
Embodiment six
As shown in figure 5, for the structural schematic diagram of the system of data transmission in multi-screen interactive provided in an embodiment of the present invention, packet It includes：
Strategic server 501, for providing transmission policy information；
Terminal device 502, for from receive multi-screen interactive ask when, according to the biography obtained from strategic server 501 Defeated policy information determines the data transfer mode corresponding to the terminal applies of itself load, wherein is carried in multi-screen interactive request There is the identification information with each terminal device for itself carrying out multi-screen interactive；Each terminal device corresponding with identification information is established respectively Connection, and each terminal device transmission data connected to foundation according to the data transfer mode determined.
When it is implemented, transmission policy information includes the correspondence of application identities and transmission mode, wherein policy service Device 501 can be used for establishing the correspondence of application identities and transmission mode in accordance with the following methods：For each terminal applies, if When the data transmission delay that the terminal applies can be tolerated is no more than the first delay threshold, determine that the terminal applies are high real-time Terminal applies, and determine that the corresponding application identities of the terminal applies are first identifier；If the data that the terminal applies can be tolerated When propagation delay time is more than the first delay threshold and is no more than the second delay threshold, determine that the terminal applies are medium real-time terminal Using, and determine that the corresponding application identities of the terminal applies are second identifier；If the data transmission that the terminal applies can be tolerated When time delay is more than the second delay threshold, determine that the terminal applies are low real-time terminal applies, and determine that the terminal applies correspond to Application identities be third mark；Determine the first identifier and the corresponding data transfer mode of second identifier be using RTP into Row data transmission；It is to be carried out data transmission using HTTP or FTP to determine that the third identifies corresponding data transfer mode；Eventually End equipment 502 can be used for obtaining the application identities corresponding to the terminal applies of itself load；According to the application identities of acquisition from In the application identities of acquisition and the correspondence of data transfer mode, corresponding data transfer mode is searched.
When it is implemented, terminal device 502 can be also used for the process to each terminal device transmission data for establishing connection In, equipment obtains data transmission performance indication information, when the data transmission performance indication information meets preset trigger condition Adjust data transfer mode.
Preferably, data transmission performance index includes data transmission error rate or data transmission packet loss；And if eventually When end application is high real-time terminal applies, preset trigger condition includes：Data transmission error rate or data transmission packet loss More than the first bit error rate threshold or the first packet loss threshold value；If terminal applies are medium real-time terminal applies, preset and touch Clockwork spring part includes：Either data transmission packet loss is more than the second bit error rate threshold or the second packet loss threshold to data transmission error rate It is worth and either third packet loss threshold value or data transmission error rate or data transmission is lost less than or equal to third bit error rate threshold Packet rate is more than third bit error rate threshold or third packet loss threshold value；And
Terminal device 502, if can be used for terminal applies is high real-time terminal applies, in data transmission error rate or When data transmission packet loss is more than the first bit error rate threshold or the first packet loss threshold value, adjustment data transfer mode is to use Http protocol or File Transfer Protocol carry out data transmission；If terminal applies are medium real-time terminal applies, in data transmission error Either data transmission packet loss is more than the second bit error rate threshold or the second packet loss threshold value and is less than or equal to the third bit error rate rate When threshold value or third packet loss threshold value, adjustment data transfer mode is to be carried out data transmission using transmission control protocol TCP； Data transmission error rate either data transmission packet loss be more than third bit error rate threshold or third packet loss threshold value when, adjust number It is to be carried out data transmission using http protocol or File Transfer Protocol according to transmission mode.
Preferably, data transmission performance index may include network signal intensity；And if terminal applies are high real-time When terminal applies, preset trigger condition includes：Network signal intensity is no more than the first signal strength threshold；During if terminal applies are Etc. real-times terminal applies when, preset trigger condition includes：Network signal intensity is no more than second signal intensity threshold and is more than Third signal strength threshold or network signal intensity are no more than third signal strength threshold；And
Terminal device 502 is no more than if can be used for terminal applies is high real-time terminal applies in network signal intensity When the first signal strength threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol；If eventually End application is medium real-time terminal applies, is no more than second signal intensity threshold in network signal intensity and is more than third signal When intensity threshold, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；It is no more than third in network signal intensity When signal strength threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
Preferably, data transmission performance index may include message transmission rate；And preset trigger condition includes：Data Transmission rate is no more than the first transmission rate threshold；If terminal applies are medium real-time terminal applies, preset trigger condition Including：Message transmission rate is no more than the second transmission rate threshold and more than third transmission rate threshold or data transmission speed Rate is no more than third transmission rate threshold；And
Terminal device 502 is no more than if can be used for terminal applies is high real-time terminal applies in message transmission rate When the first transmission rate threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol；If eventually End application is medium real-time terminal applies, is no more than the second transmission rate threshold in message transmission rate and is transmitted more than third When rate-valve value, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；It is no more than third in message transmission rate When transmission rate threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
Preferably, data transmission performance index may include data transmission delay；And preset trigger condition includes：Data Propagation delay time is more than third delay threshold；If terminal applies are medium real-time terminal applies, preset trigger condition includes：Number It is more than the 4th delay threshold according to propagation delay time and is more than the 5th time delay less than or equal to the 5th delay threshold or data transmission delay Threshold value；And
Terminal device 502 is more than the if can be used for terminal applies is high real-time terminal applies in data transmission delay When three delay thresholds, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol；If terminal applies For medium real-time terminal applies, it is more than the 4th delay threshold in data transmission delay and when less than or equal to five delay thresholds, Adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；When data transmission delay is more than five delay thresholds, adjust Entire data transmission mode is to be carried out data transmission using http protocol or File Transfer Protocol.
More preferably, terminal device 502, if can be also used for carrying out data transmission using http protocol, by remotely controlling Technology processed synchronizes itself and establishes the operation of each terminal device of connection.
When it is implemented, terminal device 502, if can be also used for itself while supporting to use WLAN technologies and mobile communication When network technology carries out data transmission, before terminal device corresponding with each identification information respectively establishes connection, obtain respectively The signal strength of WLAN and mobile communications network；Compare the signal strength of acquisition；And the strong network of selection signal intensity respectively with Terminal device corresponding to each identification information establishes connection.
When it is implemented, terminal device 502, can be used for sending to strategic server 501 and subscribes to the transmission strategy letter The subscription of breath is asked；And receive the transmission policy information that strategic server 501 is fed back；Strategic server 501, can be used for root According to the subscription request received when transmission strategy sends variation to 502 feedback transmission policy information of terminal device.
The method, apparatus of data transmission, system and terminal device, work as transmission in multi-screen interactive provided in an embodiment of the present invention When end equipment receives multi-screen interactive request, according to the transmission policy information obtained from strategic server, itself load is determined Data transfer mode corresponding to terminal applies, and multi-screen interactive is carried out to itself according to the data transfer mode determined Receiving device transmission data, in above-mentioned data transmission procedure, due to taking different data to pass for different terminal applies Defeated mode improves the service efficiency of Internet resources so as to more reasonably use Internet resources.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program of upper implementation produces The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (33)

1. a kind of method of data transmission in multi-screen interactive, which is characterized in that including：
Sending ending equipment, according to the transmission policy information obtained from strategic server, is determined when receiving multi-screen interactive request Data transfer mode corresponding to the terminal applies of itself load, carried in multi-screen interactive request with sending ending equipment into The identification information of each receiving device of row multi-screen interactive, the transmission policy information include pair of application identities and transmission mode It should be related to；And the sending ending equipment determines the transmission side data corresponding to the terminal applies of itself load in accordance with the following methods Formula：The sending ending equipment obtains the application identities corresponding to the terminal applies of itself load；According to the application identities of acquisition from In the correspondence of the application identities and data transfer mode, corresponding data transfer mode is searched；
The receiving device corresponding with each identification information establishes connection to the sending ending equipment respectively, and according to the data determined Transmission mode is to each receiving device transmission data.
2. the method as described in claim 1, which is characterized in that the correspondence of the application identities and data transfer mode is What the strategic server was established in accordance with the following methods：
The strategic server is directed to each terminal applies, if the data transmission delay that can tolerate of the terminal applies is no more than the When one delay threshold, determine that the terminal applies are high real-time terminal applies, and determine the corresponding application identities of the terminal applies For first identifier；If the data transmission delay that the terminal applies can be tolerated is more than the first delay threshold and is no more than the second time delay It when threshold value, determines that the terminal applies are medium real-time terminal applies, and determines that the corresponding application identities of the terminal applies are the Two marks；If the data transmission delay that the terminal applies can be tolerated is more than the second delay threshold, determine that the terminal applies are Low real-time terminal applies, and determine that the corresponding application identities of the terminal applies identify for third；Determine the first identifier and The corresponding data transfer mode of second identifier is to be carried out data transmission using realtime transmission protocol RTP；Determine the third mark Corresponding data transfer mode is to be carried out data transmission using hypertext transfer protocol HTTP or File Transfer Protocol FTP.
3. method as claimed in claim 1 or 2, which is characterized in that passed to the receiving device in the sending ending equipment During transmission of data, further include：
The sending ending equipment obtains data transmission performance indication information, meets in the data transmission performance indication information default Data transfer mode is adjusted when trigger condition.
4. method as claimed in claim 3, which is characterized in that data transmission performance index include data transmission error rate or Data transmission packet loss；And if the terminal applies be high real-time terminal applies when, the preset trigger condition includes：Institute Stating data transmission error rate, either data transmission packet loss is more than the first bit error rate threshold or the first packet loss threshold value；If described When terminal applies are medium real-time terminal applies, the preset trigger condition includes：The data transmission error rate or number According to transmission packet loss be more than the second bit error rate threshold either the second packet loss threshold value and less than or equal to third bit error rate threshold or Third packet loss threshold value either the data transmission error rate or data transmission packet loss be more than third bit error rate threshold or Third packet loss threshold value；And
Data transfer mode is adjusted when the data transmission performance indication information meets preset trigger condition, is specifically included：
If the terminal applies are high real-time terminal applies, big in the data transmission error rate or data transmission packet loss When the first bit error rate threshold or packet loss threshold value, the sending ending equipment adjustment data transfer mode is to use http protocol Or File Transfer Protocol carries out data transmission；
If the terminal applies are medium real-time terminal applies, in the data transmission error rate or data transmission packet loss More than the second bit error rate threshold either packet loss threshold value and less than or equal to third bit error rate threshold or packet loss threshold value when, it is described Sending ending equipment adjustment data transfer mode is to be carried out data transmission using transmission control protocol TCP；It is missed in the data transmission For code check when either data transmission packet loss is more than third bit error rate threshold or packet loss threshold value, the sending ending equipment adjusts number It is to be carried out data transmission using http protocol or File Transfer Protocol according to transmission mode.
5. method as claimed in claim 3, which is characterized in that data transmission performance index includes network signal intensity；And If the terminal applies are high real-time terminal applies, the preset trigger condition includes：The network signal intensity does not surpass Cross the first signal strength threshold；If the terminal applies are medium real-time terminal applies, the preset trigger condition includes： The network signal intensity is no more than second signal intensity threshold and is more than third signal strength threshold or the network signal Intensity is no more than third signal strength threshold；And
Data transfer mode is adjusted when the data transmission performance indication information meets preset trigger condition, is specifically included：
If the terminal applies are high real-time terminal applies, it is no more than the first signal strength threshold in the network signal intensity When, the sending ending equipment adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol；
If the terminal applies are medium real-time terminal applies, it is no more than second signal intensity threshold in the network signal intensity Value and when more than third signal strength threshold, sending ending equipment adjustment data transfer mode are using Transmission Control Protocol into line number According to transmission；When the network signal intensity is no more than third signal strength threshold, the sending ending equipment adjusts data transmission Mode is to be carried out data transmission using http protocol or File Transfer Protocol.
6. method as claimed in claim 3, which is characterized in that data transmission performance index includes message transmission rate；And The preset trigger condition includes：The message transmission rate is no more than the first transmission rate threshold；If the terminal applies are When medium real-time terminal applies, the preset trigger condition includes：The message transmission rate is no more than the second transmission rate Threshold value and it is no more than third transmission rate threshold more than third transmission rate threshold or the message transmission rate；And
Data transfer mode is adjusted when the data transmission performance indication information meets preset trigger condition, is specifically included：
If the terminal applies are high real-time terminal applies, it is no more than the first transmission rate threshold in the message transmission rate When, the sending ending equipment adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol；
If the terminal applies are medium real-time terminal applies, it is no more than the second transmission rate threshold in the message transmission rate Value and when more than third transmission rate threshold, sending ending equipment adjustment data transfer mode are using Transmission Control Protocol into line number According to transmission；When the message transmission rate is no more than third transmission rate threshold, the sending ending equipment adjusts data transmission Mode is to be carried out data transmission using http protocol or File Transfer Protocol.
7. method as claimed in claim 3, which is characterized in that data transmission performance index includes data transmission delay；And The preset trigger condition includes：The data transmission delay is more than third delay threshold；If the terminal applies are medium reality When property terminal applies, the preset trigger condition includes：The data transmission delay be more than the 4th delay threshold and less than etc. It is more than the 5th delay threshold in the 5th delay threshold or the data transmission delay；And
Data transfer mode is adjusted when the data transmission performance index meets preset trigger condition, is specifically included：
If the terminal applies are high real-time terminal applies, when the data transmission delay is more than third delay threshold, institute It is to be carried out data transmission using http protocol or File Transfer Protocol to state sending ending equipment adjustment data transfer mode；
If the terminal applies are medium real-time terminal applies, it is more than the 4th delay threshold and small in the data transmission delay When equal to five delay thresholds, the sending ending equipment adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol； When the data transmission delay is more than five delay thresholds, the sending ending equipment adjustment data transfer mode is to use HTTP Agreement or File Transfer Protocol carry out data transmission.
8. the method as described in claim 4~7 any claim, which is characterized in that if carrying out data using http protocol When transmission, further include：
The sending ending equipment synchronizes the operation of sending ending equipment and receiving device by remote control technology.
9. the method as described in claim 1, which is characterized in that if the sending ending equipment is supported to use WLAN simultaneously WLAN technologies and mobile communication network technology carry out data transmission, and the sending ending equipment is corresponding with each identification information respectively to be connect Receiving end equipment is established before connection, further includes：
The sending ending equipment obtains the signal strength of WLAN and mobile communications network respectively；
Compare the signal strength of acquisition；And
The receiving device corresponding with each identification information establishes connection to the sending ending equipment respectively, specifically includes：
The strong network of the sending ending equipment selection signal intensity respectively establish and connect by the receiving device corresponding with each identification information It connects.
10. method as claimed in claim 9, which is characterized in that transmitted to the receiving device in the sending ending equipment During data, further include：
The sending ending equipment obtains the signal strength of WLAN and mobile communications network respectively；
If the signal strength for the network being being currently used is high less than the signal strength of fourth signal intensity threshold and another network When five signal strength thresholds, the sending ending equipment, which switches to another network, to carry out data transmission, and the 5th signal is strong It spends threshold value and is more than fourth signal intensity threshold.
11. the method as described in claim 1, which is characterized in that the sending ending equipment is in accordance with the following methods from network side plan Slightly server obtains transmission policy information：
The sending ending equipment sends the subscription request for subscribing to the transmission policy information to the network side strategic server；With And
The network side strategic server is received according to the transmission plan subscribed to request and fed back in transmission strategy transmission variation Slightly information.
12. the device of data transmission in a kind of multi-screen interactive, which is characterized in that it is set in terminal device, including：
Determination unit, for receive multi-screen interactive request when, according to the transmission policy information obtained from strategic server, really Data transfer mode corresponding to the terminal applies of itself fixed place terminal device load, carries in the multi-screen interactive request The identification information of each terminal device of multi-screen interactive is carried out with terminal device where itself, the transmission policy information includes application The correspondence of mark and transmission mode；And the determination unit, including：Subelement is obtained, for obtaining itself place eventually Application identities corresponding to the terminal applies of end equipment load；Subelement is searched, for what is obtained according to the acquisition subelement Application identities search corresponding data transfer mode from the correspondence of the application identities and data transfer mode；
Connection establishment unit is built for terminal device corresponding with each identification information carried in multi-screen interactive request respectively Vertical connection；
Data transmission unit, the data transfer mode for being determined according to the determination unit are set to each terminal for establishing connection Standby transmission data.
13. device as claimed in claim 12, which is characterized in that the correspondence of the application identities and data transfer mode The strategic server is established in accordance with the following methods：The strategic server is directed to each terminal applies, if the terminal is answered When being no more than the first delay threshold with the data transmission delay that can be tolerated, determine that the terminal applies are that high real-time terminal is answered With, and determine that the corresponding application identities of the terminal applies are first identifier；If when the data transmission that the terminal applies can be tolerated When prolonging more than the first delay threshold and being no more than the second delay threshold, determine that the terminal applies are medium real-time terminal applies, And determine that the corresponding application identities of the terminal applies are second identifier；If the data transmission delay that the terminal applies can be tolerated is big When the second delay threshold, determine that the terminal applies are low real-time terminal applies, and determine the corresponding application of the terminal applies It is identified as third mark；Determine that the first identifier and the corresponding data transfer mode of second identifier are using real-time transport protocol RTP carries out data transmission；Determine the third identify corresponding data transfer mode be using hypertext transfer protocol HTTP or Person's File Transfer Protocol FTP carries out data transmission.
14. device as described in claim 12 or 13, which is characterized in that further include first obtains unit, wherein：
The first obtains unit, for the process in data transmission unit to each terminal device transmission data for establishing connection In, obtain data transmission performance index；
The data transmission unit, the data transmission performance index for being additionally operable to obtain in the first obtains unit meet default touch Data transfer mode is adjusted when clockwork spring part.
15. device as claimed in claim 14, which is characterized in that data transmission performance index include data transmission error rate or Person's data transmission packet loss；And if the terminal applies be high real-time terminal applies when, the preset trigger condition includes： Either data transmission packet loss is more than the first bit error rate threshold or the first packet loss threshold value to the data transmission error rate；If institute State terminal applies be medium real-time terminal applies when, the preset trigger condition includes：The data transmission error rate or Data transmission packet loss be more than the second bit error rate threshold or the second packet loss threshold value and less than or equal to third bit error rate threshold or Person's third packet loss threshold value either the data transmission error rate or data transmission packet loss be more than third bit error rate threshold or Person's third packet loss threshold value；And
The data transmission unit, if being high real-time terminal applies specifically for the terminal applies, in the data transmission The bit error rate either data transmission packet loss be more than the first bit error rate threshold or the first packet loss threshold value when, adjust transmission side data Formula is to be carried out data transmission using http protocol or File Transfer Protocol；If the terminal applies are medium real-time terminal applies, Either data transmission packet loss is more than the second bit error rate threshold or the second packet loss threshold value and small to the data transmission error rate When equal to third bit error rate threshold or third packet loss threshold value, adjustment data transfer mode is to use transmission control protocol TCP carries out data transmission；The data transmission error rate either data transmission packet loss be more than third bit error rate threshold or When third packet loss threshold value, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
16. device as claimed in claim 14, which is characterized in that data transmission performance index includes network signal intensity；With And if the terminal applies be high real-time terminal applies when, the preset trigger condition includes：The network signal intensity is not More than the first signal strength threshold；If the terminal applies are medium real-time terminal applies, the preset trigger condition packet It includes：The network signal intensity is no more than second signal intensity threshold and is more than third signal strength threshold or the network Signal strength is no more than third signal strength threshold；And
The data transmission unit, if being high real-time terminal applies specifically for the terminal applies, in the network signal When intensity is no more than the first signal strength threshold, adjustment data transfer mode is using http protocol or File Transfer Protocol into line number According to transmission；If the terminal applies are medium real-time terminal applies, it is strong to be no more than second signal in the network signal intensity When spending threshold value and being more than third signal strength threshold, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；Institute When stating network signal intensity no more than third signal strength threshold, adjustment data transfer mode is to use http protocol or FTP Agreement carries out data transmission.
17. device as claimed in claim 14, which is characterized in that data transmission performance index includes message transmission rate；With And the preset trigger condition includes：The message transmission rate is no more than the first transmission rate threshold；If the terminal applies For medium real-time terminal applies when, the preset trigger condition includes：The message transmission rate is no more than the second transmission speed Rate threshold value and it is no more than third transmission rate threshold more than third transmission rate threshold or the message transmission rate；And
The data transmission unit, if being high real-time terminal applies specifically for the terminal applies, in the data transmission When rate is no more than the first transmission rate threshold, adjustment data transfer mode is using http protocol or File Transfer Protocol into line number According to transmission；If the terminal applies are medium real-time terminal applies, it is no more than the second transmission speed in the message transmission rate Rate threshold value and more than third transmission rate threshold when, adjustment data transfer mode be carried out data transmission using Transmission Control Protocol；Institute When stating message transmission rate no more than third transmission rate threshold, adjustment data transfer mode is to use http protocol or FTP Agreement carries out data transmission.
18. device as claimed in claim 14, which is characterized in that data transmission performance index includes data transmission delay；With And the preset trigger condition includes：The data transmission delay is more than third delay threshold；If the terminal applies are medium When real-time terminal applies, the preset trigger condition includes：The data transmission delay is more than the 4th delay threshold and is less than It is more than the 5th delay threshold equal to the 5th delay threshold or the data transmission delay；And
The data transmission unit, if being high real-time terminal applies specifically for the terminal applies, in the data transmission When time delay is more than third delay threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol； If the terminal applies are medium real-time terminal applies, be more than the 4th delay threshold in the data transmission delay and be less than etc. When five delay thresholds, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；In the data transmission delay When more than five delay thresholds, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
19. the device as described in claim 15~18 any claim, which is characterized in that further include：
Control unit passes through remote control skill if carry out data transmission using http protocol for the data transmission unit Terminal device where art synchronizes itself and the operation for establishing each terminal device connected.
20. device as claimed in claim 12, which is characterized in that further include the second obtaining unit and comparing unit, wherein：
Second obtaining unit, if supporting to use WLAN WLAN technologies and mobile radio communication simultaneously for terminal device Network technology carries out data transmission, and in the connection establishment unit, the terminal device corresponding with each identification information establishes connection respectively Before, the signal strength of WLAN and mobile communications network are obtained respectively；
The comparing unit, the signal strength obtained for second obtaining unit；
The connection establishment unit, specifically for the strong network of selection signal intensity, the terminal corresponding with each identification information is set respectively It is standby to establish connection.
21. device as claimed in claim 20, which is characterized in that
Second obtaining unit is additionally operable to terminal device and each terminal device transmission data of foundation connection where itself In the process, the signal strength of WLAN and mobile communications network are obtained respectively；
The data transmission unit, if the signal strength for being additionally operable to the network being being currently used is less than fourth signal intensity threshold And the signal strength of another network switches to another network and carries out data transmission when being higher than five signal strength thresholds, described the Five signal strength thresholds are more than fourth signal intensity threshold.
22. device as claimed in claim 12, which is characterized in that further include：
Subscriber units, for sending the subscription request for subscribing to the transmission policy information to network side strategic server；
Receiving unit is asked according to the subscription when transmission strategy sends variation for receiving the network side strategic server The transmission policy information of feedback.
23. a kind of terminal device, which is characterized in that including the device described in claim 12~22 any claim.
24. the system of data transmission in a kind of multi-screen interactive, which is characterized in that including：
Strategic server, for providing transmission policy information, the transmission policy information includes application identities and transmission mode Correspondence；
Terminal device, for from when receiving multi-screen interactive and asking, according to the transmission policy information obtained from strategic server, It determines the data transfer mode corresponding to the terminal applies of itself load, carries in the multi-screen interactive request and carried out with itself The identification information of each terminal device of multi-screen interactive；The terminal device is specifically used for obtaining the terminal applies institute of itself load Corresponding application identities；According to the application identities of acquisition from the correspondence of the application identities and data transfer mode, look into Look for corresponding data transfer mode；Each terminal device corresponding with the identification information establishes connection respectively, and according to determining Data transfer mode to establish connection each terminal device transmission data.
25. system as claimed in claim 24, which is characterized in that
The strategic server, the correspondence for establishing application identities and transmission mode in accordance with the following methods：For each Terminal applies determine that the terminal is answered if the data transmission delay that the terminal applies can be tolerated is no more than the first delay threshold With for high real-time terminal applies, and determine that the corresponding application identities of the terminal applies are first identifier；If the terminal applies energy When the data transmission delay enough tolerated is more than the first delay threshold and is no more than the second delay threshold, in determining that the terminal applies are Etc. real-times terminal applies, and determine that the corresponding application identities of the terminal applies are second identifier；If the terminal applies can be held When the data transmission delay born is more than the second delay threshold, determine that the terminal applies are low real-time terminal applies, and determining should The corresponding application identities of terminal applies identify for third；Determine the first identifier and the corresponding data transfer mode of second identifier To use realtime transmission protocol RTP to carry out data transmission；It is using super to determine that the third identifies corresponding data transfer mode Text transfer protocol HTTP or File Transfer Protocol FTP carry out data transmission.
26. the system as described in claim 24 or 25, which is characterized in that
The terminal device, during being additionally operable to each terminal device transmission data for establishing connection, equipment obtains data and passes Defeated performance index information adjusts data transfer mode when the data transmission performance indication information meets preset trigger condition.
27. system as claimed in claim 26, which is characterized in that data transmission performance index include data transmission error rate or Person's data transmission packet loss；And if the terminal applies be high real-time terminal applies when, the preset trigger condition includes： Either data transmission packet loss is more than the first bit error rate threshold or the first packet loss threshold value to the data transmission error rate；If institute State terminal applies be medium real-time terminal applies when, the preset trigger condition includes：The data transmission error rate or Data transmission packet loss be more than the second bit error rate threshold or the second packet loss threshold value and less than or equal to third bit error rate threshold or Person's third packet loss threshold value either the data transmission error rate or data transmission packet loss be more than third bit error rate threshold or Person's third packet loss threshold value；And
The terminal device, if being high real-time terminal applies specifically for the terminal applies, in the data transmission error Rate either data transmission packet loss be more than the first bit error rate threshold or the first packet loss threshold value when, adjustment data transfer mode be Carried out data transmission using http protocol or File Transfer Protocol；If the terminal applies are medium real-time terminal applies, described Data transmission error rate either data transmission packet loss be more than the second bit error rate threshold or the second packet loss threshold value and less than etc. When third bit error rate threshold or third packet loss threshold value, adjustment data transfer mode be using transmission control protocol TCP into Row data transmission；In the data transmission error rate, either data transmission packet loss is more than third bit error rate threshold or third is lost When packet rate threshold value, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
28. system as claimed in claim 26, which is characterized in that data transmission performance index includes network signal intensity；With And if the terminal applies be high real-time terminal applies when, the preset trigger condition includes：The network signal intensity is not More than the first signal strength threshold；If the terminal applies are medium real-time terminal applies, the preset trigger condition packet It includes：The network signal intensity is no more than second signal intensity threshold and is more than third signal strength threshold or the network Signal strength is no more than third signal strength threshold；And
The terminal device, if being high real-time terminal applies specifically for the terminal applies, in the network signal intensity When no more than the first signal strength threshold, adjustment data transfer mode is to carry out data biography using http protocol or File Transfer Protocol It is defeated；If the terminal applies are medium real-time terminal applies, it is no more than second signal intensity threshold in the network signal intensity When being worth and being more than third signal strength threshold, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；In the net When network signal strength is no more than third signal strength threshold, adjustment data transfer mode is to use http protocol or File Transfer Protocol Carry out data transmission.
29. system as claimed in claim 26, which is characterized in that data transmission performance index includes message transmission rate；With And the preset trigger condition includes：The message transmission rate is no more than the first transmission rate threshold；If the terminal applies For medium real-time terminal applies when, the preset trigger condition includes：The message transmission rate is no more than the second transmission speed Rate threshold value and it is no more than third transmission rate threshold more than third transmission rate threshold or the message transmission rate；And
The terminal device, if being high real-time terminal applies specifically for the terminal applies, in the message transmission rate When no more than the first transmission rate threshold, adjustment data transfer mode is to carry out data biography using http protocol or File Transfer Protocol It is defeated；If the terminal applies are medium real-time terminal applies, it is no more than the second transmission rate threshold in the message transmission rate When being worth and being more than third transmission rate threshold, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；In the number When being no more than third transmission rate threshold according to transmission rate, adjustment data transfer mode is to use http protocol or File Transfer Protocol Carry out data transmission.
30. system as claimed in claim 26, which is characterized in that data transmission performance index includes data transmission delay；With And the preset trigger condition includes：The data transmission delay is more than third delay threshold；If the terminal applies are medium When real-time terminal applies, the preset trigger condition includes：The data transmission delay is more than the 4th delay threshold and is less than It is more than the 5th delay threshold equal to the 5th delay threshold or the data transmission delay；And
The terminal device, if being high real-time terminal applies specifically for the terminal applies, in the data transmission delay When more than third delay threshold, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol；If institute It is medium real-time terminal applies to state terminal applies, is more than the 4th delay threshold in the data transmission delay and less than or equal to the When five delay thresholds, adjustment data transfer mode is to be carried out data transmission using Transmission Control Protocol；It is more than in the data transmission delay When five delay thresholds, adjustment data transfer mode is to be carried out data transmission using http protocol or File Transfer Protocol.
31. the system as described in claim 27~30 any claim, which is characterized in that
If the terminal device synchronizes itself be additionally operable to carry out data transmission using http protocol by remote control technology With the operation for each terminal device for establishing connection.
32. system as claimed in claim 24, which is characterized in that
The terminal device, if be additionally operable to itself while supporting to use WLAN WLAN technologies and mobile communication network technology When carrying out data transmission, before terminal device corresponding with each identification information respectively establishes connection, WLAN and shifting are obtained respectively The signal strength of dynamic communication network；Compare the signal strength of acquisition；And the strong network of selection signal intensity is believed with each mark respectively It ceases corresponding terminal device and establishes connection.
33. system as claimed in claim 24, which is characterized in that
The terminal device is specifically used for sending the subscription request for subscribing to the transmission policy information to the strategic server； And receive the transmission policy information of the strategic server feedback；
The strategic server is specifically used for being asked when transmission strategy sends variation to the terminal device according to the subscription Feedback transmission policy information.
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