Realize method, terminal and the system of interactive service
Technical field
The present invention relates to China mobile multi-media broadcasting technology, particularly realize method, terminal and the system of interactive service.
Background technology
Mobile Multimedia Broadcasting is a kind of multimedia transmission technology based on the forms of broadcasting, and operator is on one's own initiative to the users broadcasting multimedia programming, and the user watches own programs of interest passively.
For unidirectional mobile multi-media broadcasting service, interactive service is meant: realize corresponding business by service supplier and professional recipient based on two-way network interaction each other.The application kind of interactive service is very abundant, comprising: ecommerce class interactive service, amusement class interactive service, Interactive Advertising etc.Wherein, ecommerce class interactive service can help the user to buy commodity, uses financial services such as bank, stock; Amusement class interactive service provides various application such as recreation, lottery ticket; Interactive Advertising then allows advertisement publishers send out various forms of advertisements by alternant way, and obtains feedback from the advertisement recipient apace.
Usually, the content of interactive service is divided into two parts: main contents part and additional content part.Main contents is meant as the audio/video content of the main body of interactive service, data content etc.; Additional content is mainly used in and carries out service interaction, can be various forms of contents such as video, audio frequency, literal, image.Additional content can only combine with main contents could operate as normal, and requirement keeps synchronously with main contents, and for example: additional contents such as captions, merchandise news, menu interface need keep synchronous with main contents such as audio/video.
At present, many interactive services are realized with combining of bidirectional communication network based on mobile media broadcasting network.Fig. 1 shows the existing schematic network structure that realizes interactive service.Comprise in the network configuration shown in Figure 1: unidirectional broadcast network 110 (for example: the CMMB network), bidirectional communication network 120 (for example: GPRS network), multi-media broadcasting service server 130, interactive service server 140 and terminal 150.Be example with ecommerce class interactive service below, the process that realizes interactive service under the network configuration shown in Figure 1 be described:
The 1st step: interactive service server 140 will send to multi-media broadcasting service server 130 about the first order additional content of commodity.Here, first order additional content is the part of the additional content of this interactive service, is meant that playing to the user carries out information interaction in order to help user and interactive service server 140, to obtain the information of other additional content.Usually the essential information that comprises some commodity to be transacted in the first order additional content, the user can understand the basic condition of commodity to be transacted by these essential informations, also should comprise some menus that can supply the user to select, OptionButton etc. in the first order additional content, the user select certain OptionButton can triggering terminal 150 and interactive service server 140 between information interaction so that terminal 150 is obtained other additional content of this interactive service.
The 2nd step: multi-media broadcasting service server 130 will be handed down to terminal 150 by logical data passages different in the unidirectional broadcast network 110 respectively with additional content about the main contents of commodity.Here, main contents can be about the audio/video of commodity to be transacted etc., and additional content is exactly the first order additional content in above-mentioned the 1st step.
The 3rd step: after terminal 150 receives main contents and additional content, main contents and additional content are carried out synchronous playing.
The 4th step: the user carries out further information interaction about commodity to be transacted by the menu in the user interface of terminal 150, OptionButton etc. and interactive service server 140, to obtain other additional content of commodity to be transacted.This information interaction is undertaken by bidirectional communication network 120.
In the process of single purchase commodity, the information interaction in above-mentioned the 4th step between terminal 150 and the interactive service server 140 may need to carry out repeatedly.With clothes class commodity is example, and the first order additional content that multi-media broadcasting service server 130 offers terminal 150 may only comprise the attributes section of big class such as size option, color options, and under each big generic attribute more specifically information may not comprise.The user selects size option with the information interaction first time between triggering terminal 150 and the interactive service server 140, makes terminal 150 get access to concrete dimension information, for example: special little sign indicating number, little sign indicating number, middle sign indicating number, big sign indicating number, intensity code etc.Above-mentioned concrete dimension information also belongs to the part of additional content.After the user selects concrete size, terminal 150 will be carried out the information interaction second time by bidirectional communication network 120 and interactive service server 140, with user-selected size notice interactive service server 140.Then, the user can select the information interaction for the third time between color options triggering terminal 150 and the interactive service server 140, makes terminal 150 get access to concrete colouring information, for example: black, white, red etc.Be similar to dimension information, the colouring information here also is the part of additional content.After the user selects concrete color, terminal 150 will be carried out information interaction the 4th time by bidirectional communication network 120 and interactive service server 140, with user-selected color notice interactive service server 140.After information such as definite size, color, the user may select the quantity of needed clothes, at this moment, terminal 150 will be carried out information interaction the 5th time by bidirectional communication network 120 and interactive service server 140, the quantity notice interactive service server 140 of the clothes that the user is customized.If these clothes also have other attribute, a part that all can be used as additional content is undertaken customized by the information interaction between terminal 150 and the interactive service server 140 in the manner described above.At last, after determining all information, the user can select " purchase " option in the user interface to buy.Usually, to comprise the option that " purchase " or expression like that selection finishes in the menu option of ecommerce class interactive service, and after information such as definite size, color, quantity, select these option notice interactive service server 140 relevant informations to select to finish for the user.After the user selects " purchase " option, terminal 150 will send corresponding instruction to interactive service server 140, after receiving this instruction, interactive service server 140 can be with information such as the size that got access to, color, quantity as service interaction result, generate corresponding affirmation information with this service interaction result and send to terminal, require the user to confirm.The user selects corresponding button after confirming, terminal 150 will send the corresponding instruction of confirming to interactive service server 140, and interactive service server 140 will point out the user to buy success after receiving this affirmation instruction usually.So far, finish the process of single purchase commodity.
By above-mentioned example as seen, in the method for traditional realization interactive service, terminal need be carried out repeatedly the network information with the interactive service server just can obtain the complete additional content of this interactive service alternately, and finishes interactive service one time.So the frequent network information has not only increased the flow of bidirectional communication network alternately, caused burden to bidirectional communication network, and the user may need to pay extra communication cost for this reason, has increased the communication cost of realizing interactive service.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that realizes interactive service, alleviating the flow burden of bidirectional communication network, and reduces the communication cost of realizing interactive service.
Another object of the present invention is to provide a kind of terminal, alleviating the flow burden of bidirectional communication network, and reduces the communication cost of realizing interactive service.
Further purpose of the present invention is to provide a kind of system that realizes interactive service, alleviating the flow burden of bidirectional communication network, and reduces the communication cost of realizing interactive service.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of method that realizes interactive service comprises:
The service logic relation of various piece sends to terminal the main contents of the interactive service that terminal issues from unidirectional broadcast network receiving multimedia broadcast service server, whole additional contents of interactive service and the described additional content;
Described terminal is carried out virtual information interaction according to the service logic relation of various piece in whole additional contents of the main contents of described interactive service, interactive service and the additional content with the user, obtains service interaction result;
Described terminal sends to the interactive service server by bidirectional communication network with described service interaction result;
Describedly carry out virtual information interaction and obtain service interaction result and can comprise:
Described terminal is given the user with main contents and first order additional content synchronous playing;
When receiving the selection instruction of user's transmission, described terminal writes down described selection instruction, and resolve the service logic relation of various piece in the described additional content according to described selection instruction and current in progress additional content, determine the current additional content that should play, and play the described current additional content that should play;
When receiving the instruction that expression that the user sends selects to finish, determine service interaction result according to the selection instruction of described record.
Preferably, the additional content of described interactive service adopts the mode of webpage to represent;
The service logic of various piece relation adopts the service logic description script to represent in the described additional content;
Described terminal plays additional content is: use web browser in the described terminal to show the additional content of the interactive service that the mode of described employing webpage is represented;
The service logic of various piece is closed and to be in the described additional content of described terminal parses: use virtual network service in the described terminal to resolve the service logic relation of various piece in the additional content that described employing service logic description script represents;
Described virtual information interaction in described terminal web browser and virtual network service between carry out.
Preferably, described terminal sends to the interactive service server by bidirectional communication network with described service interaction result and can comprise: described terminal sends to the interactive service server by the up channel of short message service SMS or WAP (wireless application protocol) WAP with service interaction result.
Further, this method can comprise: described interactive service server sends to described multi-media broadcasting service server with the service logic relation of various piece in whole additional contents of the main contents of interactive service, interactive service and the described additional content in advance.
After described terminal sends to the interactive service server by bidirectional communication network with described service interaction result, may further include: described interactive service server generates according to described service interaction result confirms that information sends to described terminal; Described terminal is play described affirmation information to the user.
A kind of terminal comprises: transceiver module and virtual interacting module, wherein:
Described transceiver module, be used for main contents, whole additional contents of interactive service and the service logic relation of described additional content various piece of the interactive service that the receiving multimedia broadcast service server issues by unidirectional broadcast network, and be used for the main contents of the interactive service of described reception, whole additional contents of interactive service and the service logic relation of described additional content various piece are sent to described virtual interacting module;
Described virtual interacting module, be used for the main contents according to described interactive service, whole additional contents of interactive service and the service logic relation of additional content various piece and carry out virtual information interaction with the user, obtain service interaction result, and described service interaction result is sent to transceiver module;
Described transceiver module also is used for described service interaction result is sent to the interactive service server by bidirectional communication network;
Specifically comprise in the described virtual interacting module: audio frequency and video are play submodule, man-machine interface submodule and service logic analyzing sub-module, wherein:
Described audio frequency and video are play submodule, are used for giving the user with main contents and first order additional content synchronous playing;
Described man-machine interface submodule is used to receive the instruction that the user sends, and described instruction is sent to the service logic analyzing sub-module, and be used for playing corresponding additional content according to the notice of described service logic analyzing sub-module;
Described service logic analyzing sub-module, when receiving the selection instruction of man-machine interface submodule transmission, be used to write down described selection instruction, and resolve the service logic relation of various piece in the described additional content according to described selection instruction and current in progress additional content, determine the current additional content that should play, notify described man-machine interface submodule the described current additional content that should play; When the instruction that the expression selection that receives the transmission of man-machine interface submodule finishes, determine service interaction result according to the selection instruction of described record, described service interaction result is sent to described transceiver module.
Preferably, described transceiver module, the service logic relation that also is used for receiving the additional content that adopts the described interactive service that the webpage mode represents and adopts the described additional content various piece that the service logic description script represents;
Described man-machine interface submodule is a web browser, and described web browser is used to show the additional content of the interactive service that the mode of described employing webpage is represented;
Described service logic analyzing sub-module is a virtual network service, and described virtual network service is used for resolving the service logic relation of the additional content various piece that described employing service logic description script represents.
Preferably, described transceiver module can be used for by the up channel of short message service SMS or WAP (wireless application protocol) WAP service interaction result being sent to the interactive service server.
Described transceiver module can be further used for receiving the affirmation information that described interactive service server generates according to described service interaction result, and described affirmation information is sent to described man-machine interface submodule; Described man-machine interface submodule can be used for playing described affirmation information to the user.
A kind of system that realizes interactive service comprises: multi-media broadcasting service server, unidirectional broadcast network, terminal, bidirectional communication network and interactive service server, wherein:
Described multi-media broadcasting service server is used for by described unidirectional broadcast network the main contents of interactive service, whole additional contents of interactive service and the service logic relation of described additional content various piece being sent to described terminal;
Described terminal, be used for the main contents according to described interactive service, whole additional contents of interactive service and the service logic relation of additional content various piece and carry out virtual information interaction with the user, obtain service interaction result, and be used for described service interaction result being sent to described interactive service server by described bidirectional communication network; Describedly carry out virtual information interaction and obtain service interaction result and comprise: described terminal is given the user with main contents and first order additional content synchronous playing; When receiving the selection instruction of user's transmission, described terminal writes down described selection instruction, and resolve the service logic relation of various piece in the described additional content according to described selection instruction and current in progress additional content, determine the current additional content that should play, and play the described current additional content that should play; When receiving the instruction of selecting to finish with representing of produce sending, determine service interaction result according to the selection instruction of described record;
Described interactive service server is used to receive the service interaction result from described terminal.
Further, described interactive service server can be used in advance the main contents of interactive service, whole additional contents of interactive service and the service logic relation of described additional content various piece being sent to described multi-media broadcasting service server.
Described interactive service server can also be used for confirming that according to the service interaction result generation of described reception information sends to described terminal;
Described terminal can also be used for playing described affirmation information to the user.
As seen from the above technical solution, in the technical scheme provided by the invention, by unidirectional broadcast network the service logic relation of various piece in whole additional contents of the main contents of interactive service, interactive service and the described additional content is sent to terminal by the multi-media broadcasting service server, and carry out virtual information interaction according to above-mentioned information and user by terminal, information interaction in the simulation realization practical application between terminal and the interactive service server, thus determine service interaction result.
So, owing to being changed at terminal inner, the information interaction of being finished by bidirectional communication network by terminal and interactive service server in the prior art carries out, make that to need not to carry out between terminal and the interactive service server the frequent network information in determining the process of service interaction result mutual, only need terminal that the service interaction result of determining is issued the interactive service server, carry out subsequent treatment by the interactive service server according to the interactive service result and get final product.As seen, adopt technical solution of the present invention to realize that required network information interaction times significantly reduces, thereby has alleviated the flow burden of bidirectional communication network in the process of interactive service, and reduced the communication cost of realizing interactive service.For the user, any change does not take place in experience.
Description of drawings
Fig. 1 is the existing schematic network structure that realizes interactive service;
Fig. 2 realizes the method flow schematic diagram of interactive service for the present invention;
Fig. 3 is the composition structural representation of the present invention's one preferable terminal;
Fig. 4 realizes the composition structural representation of the system of interactive service for the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Main thought of the present invention is: by unidirectional broadcast network the service logic relation of various piece in whole additional contents of the main contents of interactive service, interactive service and the described additional content is sent to terminal by the multi-media broadcasting service server, and carry out virtual information interaction according to above-mentioned information and user by terminal, thereby the information interaction in the simulation realization practical application between terminal and the interactive service server, and then definite service interaction result.So, owing to being changed at terminal inner, the information interaction of being finished by bidirectional communication network by terminal and interactive service server in the prior art carries out, make that to need not to carry out between terminal and the interactive service server the frequent network information in determining the process of service interaction result mutual, only need terminal that the service interaction result of determining is issued the interactive service server, carry out subsequent treatment by the interactive service server according to the interactive service result and get final product.As seen, adopt technical solution of the present invention to realize that required network information interaction times significantly reduces, thereby has alleviated the flow burden of bidirectional communication network in the process of interactive service, and reduced the communication cost of realizing interactive service.For the user, any change does not take place in experience.
Fig. 2 realizes the method flow schematic diagram of interactive service for the present invention.Referring to Fig. 2, this method comprises:
Step 201: the service logic relation of various piece sends to terminal the main contents of the interactive service that terminal issues from unidirectional broadcast network receiving multimedia broadcast service server, whole additional contents of interactive service and the additional content.
This step is with the difference of prior art: what the multi-media broadcasting service server sent to terminal is whole additional contents of interactive service, rather than first order additional content, and, the service logic of various piece relation also sends to terminal in the lump in the additional content, and this makes terminal to concern the information interaction of simulating according to the service logic of whole additional contents that get access to interactive service and various piece.
Before this step, the interactive service server can be in advance sends to the multi-media broadcasting service server with the service logic relation of various piece in whole additional contents of the main contents of interactive service, interactive service and the described additional content.In actual applications, can certainly make the multi-media broadcasting service server get access to the service logic relation of various piece in whole additional contents of main contents, interactive service of interactive service and the described additional content by alternate manner.For example: can adopt the mode that sets in advance.
Step 202: terminal is carried out virtual information interaction according to the service logic relation of various piece in whole additional contents of the main contents of interactive service, interactive service and the additional content with the user, obtains service interaction result.
According to prior art, terminal need just can get access to corresponding additional content through repeatedly the network information alternately with the interactive service server, and each selection of user fed back to the interactive service server, thereby finally make the interactive service server get access to the interactive service result of this interactive service.Therefore,, and possess the function of the service logic relation of resolving various piece in the additional content, can realize virtual information interaction at terminal inner as long as know the service logic relation of various piece in whole additional contents of interactive service and the additional content.In this step, carry out the detailed process that virtual information interaction obtains service interaction result and be:
At first, terminal is given the user with main contents and first order additional content synchronous playing.Detailed description about first order additional content sees also the background technology part, does not repeat them here.
Then, detect the instruction that the user sends in user interface, and carry out corresponding operation according to concrete instruction.Particularly: when receiving the selection instruction of user's transmission, terminal writes down this selection instruction, and resolve the service logic relation of various piece in the additional content according to this selection instruction and current in progress additional content, determine the current additional content that should play, and play this current additional content that should play; When receiving the instruction that expression that the user sends selects to finish, determine service interaction result according to the selection instruction that is write down.
Still be example with the interactive service of the clothes class commodity in the background technology below, specify the implementation procedure of above-mentioned virtual information interactive:
At first, the main contents of these clothes of terminal plays and first order additional content.This first order additional content may comprise size option, color options etc.When playing, detect user interface and whether send instruction.Suppose that the user has selected size option, terminal will receive corresponding instruction, at this moment, can determine that according to this instruction and current in progress additional content the user has selected size option, resolve according to the service logic relation of various piece in the additional content again, can determine currently need play concrete dimension information to the user, therefore, terminal will comprise the additional content of concrete dimension information and play to the user as the current additional content that should play.Next, the user can select concrete size, receive user's selection after, terminal need write down this selection, this selection will be as the part of service interaction result.After this, can carry out virtual information interaction according to mode same as described above, get access to the user about selection information such as the color of these clothes, quantity, all information have been determined the user, when selecting " purchase " option, the expression user has assigned the instruction that selection finishes, and so far, can generate service interaction result according to information such as the size that is write down before, color, quantity.
When specific implementation, the additional content of interactive service can adopt multiple modes such as webpage, text message to represent.
When the additional content of interactive service adopts the mode of webpage to represent, can adopt the service logic description script to represent the service logic relation of various piece in the additional content, at this moment, terminal can use web browser to show the additional content of the interactive service that the mode of this employing webpage is represented, and the service logic of using virtual network service to resolve various piece in the additional content that this employings service logic description script represents concerns, therefore, above-mentioned virtual information interactive is to carry out between web browser in terminal and the virtual network service.
For example: the additional content of interactive service can adopt the form of html page to represent, and the relation of the service logic between each html page adopts JavaScript script or VBScript script to write, and terminal uses Web browser to show html page.JavaScript script or VBScript script use with html language, thereby are used for the objects such as client programming control Web browser at Web browser.Usually, server side scripts is carried out on Web server, is generated corresponding html page according to the execution result of server side scripts and is sent to the Web browser of client by Web server, and shown by this Web browser.That is to say, have only server side scripts could realize " dynamic web page " veritably, and, the execution of server side scripts is not subjected to the restriction of Web browser, server side scripts was performed before webpage sends Web browser to by network, the just html file of standard that Web browser is received.The present invention is provided with virtual network service in order to finish the function of true Web server in terminal, script sends to terminal along with html page is broadcasted, by the virtual network service of terminal this locality to the script execution that makes an explanation.
Step 203: terminal sends to the interactive service server by bidirectional communication network with this service interaction result.
In this step, terminal can have the network of up channel to interactive service server feedback service interaction result by any.For example: can adopt short message service (SMS), wireless application protocol (wap) etc. to interactive service server feedback service interaction result.
The interactive service server is received after the service interaction result of self terminal, can carry out subsequent treatment according to prior art.Specifically comprise: the interactive service server generates according to this service interaction result confirms that information sends to terminal, and terminal is play this affirmation information to the user, and the user confirms this affirmation information, or the like.
Realize the method for interactive service corresponding to the present invention, the present invention also provides a kind of user to realize the terminal of interactive service.Fig. 3 is the composition structural representation of the present invention's one preferable terminal.Referring to Fig. 3, this terminal comprises: transceiver module 310 and virtual interacting module 320, wherein:
Transceiver module 310, be used for main contents, whole additional contents of interactive service and the service logic relation of described additional content various piece of the interactive service that the receiving multimedia broadcast service server issues by unidirectional broadcast network, and be used for the main contents of the interactive service of described reception, whole additional contents of interactive service and the service logic relation of described additional content various piece are sent to virtual interacting module 320;
Virtual interacting module 320, be used for the main contents according to interactive service, whole additional contents of interactive service and the service logic relation of additional content various piece and carry out virtual information interaction with the user, obtain service interaction result, and service interaction result is sent to transceiver module 310;
Transceiver module 310 also is used for service interaction result is sent to the interactive service server by bidirectional communication network.
May further include in the virtual interacting module 320 shown in Figure 3: audio frequency and video are play submodule 321, man-machine interface submodule 322 and service logic analyzing sub-module 323, wherein:
Audio frequency and video are play submodule 321, are used for giving the user with main contents and first order additional content synchronous playing;
Man-machine interface submodule 322 is used to receive the instruction that the user sends, and the instruction that receives is sent to service logic analyzing sub-module 323, and be used for playing corresponding additional content according to the notice of service logic analyzing sub-module 323;
Service logic analyzing sub-module 323, when receiving the selection instruction of man-machine interface submodule 322 transmissions, be used to write down this selection instruction, and resolve the service logic relation of various piece in the additional content according to this selection instruction and current in progress additional content, determine the current additional content that should play, notify described man-machine interface submodule 322 the current additional content that should play; When the instruction that the expression selection that receives 322 transmissions of man-machine interface submodule finishes, determine service interaction result according to the selection instruction that is write down, described service interaction result is sent to transceiver module 310.
Preferably, the transceiver module 310 service logic relation that can be used for receiving the additional content of the interactive service that the mode that adopts webpage represents and adopt the additional content various piece that the service logic description script represents.At this moment, man-machine interface submodule 322 is a web browser, and this web browser is used to show the additional content of the interactive service that the mode that adopts webpage is represented; Service logic analyzing sub-module 323 is a virtual network service, and this virtual network service is used for resolving the service logic relation that adopts the additional content various piece that the service logic description script represents.Certainly, in actual applications, the additional content of interactive service can also adopt text message or alternate manner to represent.
Preferably, transceiver module 310 is used for by SMS, WAP etc. service interaction result being sent to the interactive service server.
After the service interaction result that receives the terminal transmission, the interactive service server will generate according to this service interaction result confirms information, transceiver module 310 in the terminal shown in Figure 3 can send to man-machine interface submodule 322 with this affirmation information after receiving the affirmation information of interactive service server transmission; Man-machine interface submodule 322 is used for playing this affirmation information to the user.
Below the present invention is realized that the system of interactive service is elaborated.
Fig. 4 realizes the composition structural representation of the system of interactive service for the present invention.Referring to Fig. 4, this system comprises: multi-media broadcasting service server 410, unidirectional broadcast network 420, terminal 430, bidirectional communication network 440 and interactive service server 450, wherein:
Multi-media broadcasting service server 410 is used for by described unidirectional broadcast network 420 main contents of interactive service, whole additional contents of interactive service and the service logic relation of described additional content various piece being sent to terminal 430;
Terminal 430, be used for the main contents according to interactive service, whole additional contents of interactive service and the service logic relation of additional content various piece and carry out virtual information interaction with the user, obtain service interaction result, and be used for service interaction result being sent to described interactive service server 450 by bidirectional communication network 440;
Interactive service server 450 is used to receive the service interaction result of self terminal 430.
Interactive service server 450 in the system shown in Figure 4 can also be further used in advance the service logic relation of various piece in whole additional contents of the main contents of interactive service, interactive service and the described additional content is sent to multi-media broadcasting service server 410.
After the service interaction result that receives self terminal 430, interactive service server 450 can also be further used for generating the affirmation information according to this service interaction result and send to terminal 430; Terminal 430 can be further used for playing this affirmation information to the user.
As seen from the above-described embodiment, in the technical scheme provided by the invention, by unidirectional broadcast network the service logic relation of various piece in whole additional contents of the main contents of interactive service, interactive service and the described additional content is sent to terminal by the multi-media broadcasting service server, and carry out virtual information interaction according to above-mentioned information and user by terminal, information interaction in the simulation realization practical application between terminal and the interactive service server, thus determine service interaction result.
So, owing to being changed at terminal inner, the information interaction of being finished by bidirectional communication network by terminal and interactive service server in the prior art carries out, make that to need not to carry out between terminal and the interactive service server the frequent network information in determining the process of service interaction result mutual, only need terminal that the service interaction result of determining is issued the interactive service server, carry out subsequent treatment by the interactive service server according to the interactive service result and get final product.As seen, adopt technical solution of the present invention to realize that required network information interaction times significantly reduces, thereby has alleviated the flow burden of bidirectional communication network in the process of interactive service, and reduced the communication cost of realizing interactive service.For the user, any change does not take place in experience.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.