CN103023873A - Terminal-spanning real-time interactive online distributing method of lantern slide - Google Patents
Terminal-spanning real-time interactive online distributing method of lantern slide Download PDFInfo
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- CN103023873A CN103023873A CN2012104669646A CN201210466964A CN103023873A CN 103023873 A CN103023873 A CN 103023873A CN 2012104669646 A CN2012104669646 A CN 2012104669646A CN 201210466964 A CN201210466964 A CN 201210466964A CN 103023873 A CN103023873 A CN 103023873A
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Abstract
The invention relates to a terminal-spanning real-time interactive online distributing method of a lantern slide and belongs to the field of a computer science and technology application technology. The method comprises the following steps of: uploading a lantern slide file to a server side from a master control end through an HTTP (Hyper Text Transport Protocol) channel; analyzing the lantern slide file by the server side and analyzing all information in each page of the lantern slide file to a middle format and storing; carrying out interactive distribution on the lantern slide by the master control end to finish playing control and information interaction in which the master control end, the server side and a client are participated; and locally and persistently storing by the master control end and the client. Compared with the traditional method, the real-time online distribution of the lantern slide on each type of intelligent equipment is realized; an autonomous control capability of the client and an interactive communication capability of the master control end and the client are greatly enhanced; and transmission and storage of content and notes are finished in a playing process, so as to get rid of the constraint of a traditional computer and break through the limitation on time and space.
Description
Technical field
The invention belongs to the computer science and technology applied technical field, particularly the real-time, interactive lantern slide distribution technology of cross-terminal in thread environment.
Background technology
Along with popularizing of computer, use with the PowerPoint slide file as the lantern slide of representative give a lecture with the expression theory, conveying knowledge becomes a kind of daily habits.On the other hand, the network computer UNICOM that each is isolated gets up, and the restriction that breaks through the space has strengthened ability to exchange.Both are distributed to synchronously broadcast on the different terminals to lantern slide in conjunction with having produced the online distribution method of existing multiple lantern slide by network.Online distribution method mainly adds the WEB2.0 technology realization of AJAX by the technology (such as the ITU-TT.120 standard agreement) shared based on desktop or stream media technology (take Microsoft Media Service as representative) or HTTP.The online distribution method of the lantern slide of main flow as shown in Figure 1, the equipment that the method adopts comprises successively unidirectional three continuous kind equipments: main control end, service end, and a plurality of clients, wherein, the general all personal computers of Application standard of main control end and client, service end is the server computer of mainstream configuration.Use this equipment the online distribution method of lantern slide workflow as shown in Figure 2:
1) uploads the PowerPoint slide file to service end from main control end;
2) in service end this slide file is resolved to the intermediate form file;
3) initiate the Play Control order to service end by main control end;
4) adopt desktop technology of sharing or stream media technology or WEB2.0 web technologies that the intermediate form file is distributed to client online from service end;
5) transmit the Play Control order to client from service end;
6) client is carried out lantern slide after according to Play Control order restructuring intermediate form file and is play.
These schemes can realize the online distribution of lantern slide to a certain extent, but its common shortcoming is:
1. the kind of main control end and client device support is limited.Prior art only supports to adopt traditional personal computer terminal equipment usually, and lacks the support to the sorts of systems needles of various sizes intelligent terminal that nowadays becomes more and more popular;
2. client lacks autonomous interaction capabilities.Client is in the position of passive reception usually, in certain methods, provide based on indicative methods such as the communicative channel of chatting or tele-balloting, but client still can't be launched further action at lantern slide, can not directly record the gains in depth of comprehension of oneself and experience in paying attention to the class process;
3. distributing step only satisfies playing lantern slides, and can not distribute the lantern slide copy.Be that client can not be obtained the lantern slide copy when watching broadcast.
Summary of the invention
The objective of the invention is to overcome prior art various applied defects in actual applications, a kind of online distribution method of real-time, interactive lantern slide of cross-terminal is proposed, the lantern slide real-time online distribution of realization on all kinds of main flow equipment, the interactive exchange ability of the autonomous control ability of enhancement-client and main control end, client is finished the local persistent storage of file when playing.
The online distribution method of real-time, interactive lantern slide of a kind of cross-terminal that the present invention proposes is characterized in that, the method may further comprise the steps:
1) uploads slide file to service end from main control end by the HTTP passage;
2) service end is resolved slide file, and all information in the every one page of slide file are all resolved to intermediate form and preservation;
3) from the mutual distribution of main control end initiation lantern slide, finish Play Control and information interaction that main control end, service end and client participate in, and the local persistent storage of main control end and client.
Above-mentioned steps 2) service end is resolved slide file, and all information in the every one page of slide file are all resolved to intermediate form and preservation; Specifically may further comprise the steps:
2.1) load from the slide file of main control end acquisition in service end;
2.2) the every one page of slide file is parsed picture:
The access interface that provides by Microsoft.Office.Interop.PowerPoint.* gets access to all elements information that mainly is comprised of pictorial information and content information of current page, it is 1920*1080 that these element informations are derived (can adopt the Microsoft.Office.Interop.PowerPoint.Slide.Export interface), 1280*800, picture under three kinds of typical resolution of 1024*768 is preserved, to adapt to the screen of each Terminal Type different resolution of later stage;
2.3) the every one page of lantern slide is parsed content information:
The access interface that provides by Microsoft.Office.Interop.PowerPoint.Shape.TextFrame extracts all text boxes in every one page, obtain direction and the position range of each text box, obtain again length and the original position of every delegation in the text frame, obtain at last in every one page lantern slide position and the dimension information of each literal under standard resolution 1280*800 and preserve as content information;
2.4) with step 2.2), 2.3) picture and the content information unification that obtain be saved in the corresponding intermediate form file, be stored on the service end.
Above-mentioned steps 3) specifically may further comprise the steps:
3.1) main control end initiates " setting up the room " command transfer to service end;
3.2) service end sets up virtual room after receiving " setting up the room " order, and set up with " room is set up " order notice client room, inform simultaneously this room number information;
3.3) all clients after room number information, to service end send " entering the room " order, enter virtual room and participate in the activity;
3.4) broadcast of main control end by page turning, laser pen operation control lantern slide, corresponding Play Control command routing is on service end;
3.5) service end will be given to all clients in the Play Control order from main control end, distribute simultaneously corresponding intermediate form file to main control end and client;
3.6) each client receives the intermediate form file of Play Control order and corresponding play position;
3.7) main control end and client all in this locality to the broadcast of recombinating of intermediate form file, show by the operating system of different terminal equipment being carried out adaptive realization cross-terminal;
3.8) carry out information interaction between main control end, service end and the client, comprise writing on the blackboard, enquirement or three classes are discussed;
3.9) each client chooses the content on the lantern slide, adds Word message, is kept at this locality as the notes note to certain page of lantern slide;
3.10) when all lantern slides were play end, main control end and client were carried out the persistent storage conversion, and intermediate form file and writing on the blackboard, enquirement, discussion, the comprehensive storage of notes note various information are saved in this locality.
Order in the above steps is all by the SOCKET channel transfer, and other information are all by the HTTP channel transfer.
Above-mentioned steps 3.7) restructuring is play and specifically be may further comprise the steps in:
3.71) obtain the intermediate file that is distributed at each Terminal Type;
3.72) select the picture of corresponding resolution to show at each Terminal Type;
3.73) calculating the ratio p of current terminal true resolution and standard resolution 1280*800, the position of p and each literal and dimension information are multiplied each other to do to be offset adaptively, calculates position and the dimension information of each literal under the current demonstration;
Above-mentioned steps 3.8) the writing on the blackboard category information comprises alternately in:
3.81.1) main control end delineates generating character and figure two class writings on the blackboard, wherein literal writing on the blackboard storage content of text and character formatting information, the routing information that figure writing on the blackboard storage represents with Bezier;
3.81.2) main control end with the storage writing on the blackboard information be delivered to service end;
3.81.3) all clients are to writing on the blackboard information and show;
Described enquirement category information comprises alternately::
3.82.1) if certain client is initiated to put question to, choose the content on the lantern slide, subsidiary word content of puing question to is preserved into enquirement information again;
3.82.2) this client sends enquirement information to service end;
3.82.3) main control end reception enquirement information and the demonstration next by transit server;
Described discussion category information comprises alternately:
3.83.1) if certain client is initiated discussion Word message for some pages to service end;
3.83.2) other clients and main control end receive discussion information and show;
3.83.3) other clients and main control end reply discussion information on service end.
The characteristics of the technical solution used in the present invention and beneficial effect:
At first, expanded the support of dissimilar main control end and client device, adopted Flex to add mode that Native uses for the characteristics of different terminals platform and finished covering support to all kinds of main flow terminals.
Secondly, the writing on the blackboard notes that the present invention has added on each terminal system are discussed function with enquirement, have enriched interactive experience and autonomous control ability.
Further, added the persistent storage ability in each terminal system, the intermediate form file that receives and the notes discussion of interpolation have together been saved as local persistent storage file, when distribution is play, finished the distribution of file and preserve.
Compare conventional method, the present invention has realized the lantern slide real-time online distribution on all kinds of smart machines, greatly strengthened the interactive exchange ability of the autonomous control ability of client and main control end, client, finishing the transmission of content and notes when playing preserves, can break away from the constraint of traditional computer, break the restriction on the time and space.
Description of drawings
Fig. 1 is that traditional lantern slide distribution method equipment forms schematic diagram.
Fig. 2 is traditional lantern slide distribution workflow schematic diagram.
Fig. 3 is that this method equipment forms schematic diagram.
Fig. 4 is this method Whole Work Flow schematic diagram.
Fig. 5 is that this method lantern slide is resolved the workflow schematic diagram.
Fig. 6 is the mutual distribution flow schematic diagram of this method lantern slide.
Fig. 7 is this method lantern slide cross-terminal restructuring playing flow schematic diagram.
Embodiment
The online distribution method of real-time, interactive lantern slide of a kind of cross-terminal that the present invention proposes reaches by reference to the accompanying drawings embodiment and is described in detail as follows:
The apparatus embodiments that the inventive method adopts forms as shown in Figure 3, comprise the main control end, service end and a plurality of client that link to each other successively, the device type of main control end and client can adopt all kinds of main flow terminal equipment (comprising traditional computer and all kinds of intelligent mobile iOS and Android flat board, cell phone apparatus), and main control end is two-way mutual the connection with service end, service end with client.Main control end is equipped with the speaker system, and service end is equipped with the parsing transferring system, and client is equipped with receiving system.
The embodiments of the invention Whole Work Flow as shown in Figure 4, the one action flow process of this method occurs in virtual " room ".So-called " room " is the context environmental of work at present session, guarantees main control end, client and corresponding target interaction.Passage by network connection is divided into two classes: a class is the standard HTTP passage of transferring content; One class is for transmitting the standard SOCKET passage of control command.The method may further comprise the steps:
1) uploads slide file to service end from main control end by the HTTP passage;
2) service end is resolved slide file, and all information in the every one page of slide file are all resolved to intermediate form and preservation;
3) from the mutual distribution of main control end initiation lantern slide, finish Play Control and information interaction that main control end, service end and client participate in, and the local persistent storage of main control end and client.
Above-mentioned steps 2) service end is resolved slide file, and all information in the every one page of slide file are all resolved to intermediate form and preservation; Idiographic flow may further comprise the steps as shown in Figure 5:
2.1) load from the slide file of main control end acquisition in service end;
2.2) the every one page of slide file is parsed picture (the whole Visual exhibition form of stage design that namely finally presents):
The access interface that provides by Microsoft.Office.Interop.PowerPoint.* gets access to all elements information (comprising pictorial information and content information) of current page, it is 1920*1080 that these element informations are derived (can adopt the Microsoft.Office.Interop.PowerPoint.Slide.Export interface), 1280*800, picture under three kinds of typical resolution of 1024*768 is to adapt to the screen of each Terminal Type different resolution of later stage;
2.3) the every one page of lantern slide is parsed content information:
The access interface that provides by Microsoft.Office.Interop.PowerPoint.Shape.TextFrame extracts all text boxes in every one page, obtain direction and the position range of each text box, obtain again length and the original position of every delegation in the text frame, obtain at last each literal in every one page lantern slide under standard resolution 1280*800 the position and dimension information as content information, preserve;
2.4) with step 2.2), 2.3) picture and the content information unification that obtain be saved in the corresponding intermediate form file, be stored on the service end;
Above-mentioned steps 3) idiographic flow may further comprise the steps (order in the following detailed step is all by the SOCKET channel transfer, and other information are all by the HTTP channel transfer) as shown in Figure 6:
3.1) main control end initiates " setting up the room " command transfer to service end;
3.2) service end sets up virtual room after receiving " setting up the room " order, and set up with " room is set up " order notice client room, inform simultaneously this room number information;
3.3) all clients after room number information, to service end send " entering the room " order, enter virtual room and participate in the activity;
3.4) broadcast of main control end by page turning, laser pen operation control lantern slide, corresponding Play Control command routing is on service end;
3.5) service end will be given to all clients in the Play Control order from main control end, distribute simultaneously corresponding intermediate form file to main control end and client;
3.6) each client receives the intermediate form file of Play Control order and corresponding play position;
3.7) main control end and client all in this locality to the broadcast of recombinating of intermediate form file, show by the operating system of different terminal equipment being carried out adaptive realization cross-terminal, the adaptive two large classes that mainly are divided into: to supporting all kinds of desktop operating systems of Flex, comprise Windows, Linux, Mac OS, the use browser is directly accessed the client under the Flex page or the installation Adobe Air running environment; To all kinds of main flow smart machines, develop corresponding Native and use, comprise iOS, the Android client of customized development).Specifically the restructuring playing flow is as shown in Figure 7:
3.71) obtain the intermediate file that is distributed at each Terminal Type;
3.72) select the picture of corresponding resolution to show at each Terminal Type;
3.73) calculating the ratio p of current terminal true resolution and standard resolution (1280*800), the position of p and each literal and dimension information are multiplied each other to do to be offset adaptively, calculates position and the dimension information of each literal under the current demonstration.
3.8) carry out information interaction between main control end, service end and the client, comprise writing on the blackboard, enquirement or three classes are discussed;
3.81) writing on the blackboard:
3.81.1) main control end delineates generating character and figure two class writings on the blackboard, wherein literal writing on the blackboard storage content of text and character formatting information, the routing information that figure writing on the blackboard storage represents with Bezier;
3.81.2) main control end with the storage writing on the blackboard information be delivered to service end;
3.81.3) all clients are to writing on the blackboard information and show;
3.82) put question to:
3.82.1) if certain client is initiated to put question to, choose the content on the lantern slide, subsidiary word content of puing question to is preserved into enquirement information again;
3.82.2) this client sends enquirement information to service end;
3.82.3) main control end reception enquirement information and the demonstration next by transit server;
3.83) discuss:
3.83.1) if certain client is initiated discussion Word message for some pages to service end;
3.83.2) other clients and main control end receive discussion information and show;
3.83.3) other clients and main control end reply discussion information on service end;
3.9) each client chooses the content on the lantern slide, adds Word message, is kept at this locality as the notes note to certain page of lantern slide;
3.10) when all lantern slides were play end, main control end and client were carried out the persistent storage conversion, and intermediate form file and writing on the blackboard, enquirement, discussion, the comprehensive storage of notes note various information are saved in this locality.
Claims (5)
1. the online distribution method of real-time, interactive lantern slide of a cross-terminal is characterized in that, the method may further comprise the steps:
1) uploads slide file to service end from main control end by the HTTP passage;
2) service end is resolved slide file, and all information in the every one page of slide file are all resolved to intermediate form and preservation;
3) from the mutual distribution of main control end initiation lantern slide, finish Play Control and information interaction that main control end, service end and client participate in, and the local persistent storage of main control end and client.
2. method as claimed in claim 1 is characterized in that described step 2) service end resolves slide file, and all information in the every one page of slide file are all resolved to intermediate form and preserve; Specifically may further comprise the steps:
2.1) load from the slide file of main control end acquisition in service end;
2.2) the every one page of slide file is parsed picture:
The access interface that provides by Microsoft.Office.Interop.PowerPoint.* gets access to all elements information that mainly is comprised of pictorial information and content information of current page, it is 1920*1080 that these element informations are derived (can adopt the Microsoft.Office.Interop.PowerPoint.Slide.Export interface), 1280*800, picture under three kinds of typical resolution of 1024*768 is preserved, to adapt to the screen of each Terminal Type different resolution of later stage;
2.3) the every one page of lantern slide is parsed content information:
The access interface that provides by Microsoft.Office.Interop.PowerPoint.Shape.TextFrame extracts all text boxes in every one page, obtain direction and the position range of each text box, obtain again length and the original position of every delegation in the text frame, obtain at last in every one page lantern slide position and the dimension information of each literal under standard resolution 1280*800 and preserve as content information;
2.4) with step 2.2), 2.3) picture and the content information unification that obtain be saved in the corresponding intermediate form file, be stored on the service end.
3. method as claimed in claim 1 is characterized in that, described step 3) specifically may further comprise the steps:
3.1) main control end initiates " setting up the room " command transfer to service end;
3.2) service end sets up virtual room after receiving " setting up the room " order, and set up with " room is set up " order notice client room, inform simultaneously this room number information;
3.3) all clients after room number information, to service end send " entering the room " order, enter virtual room and participate in the activity;
3.4) broadcast of main control end by page turning, laser pen operation control lantern slide, corresponding Play Control command routing is on service end;
3.5) service end will be given to all clients in the Play Control order from main control end, distribute simultaneously corresponding intermediate form file to main control end and client;
3.6) each client receives the intermediate form file of Play Control order and corresponding play position;
3.7) main control end and client all in this locality to the broadcast of recombinating of intermediate form file, show by the operating system of different terminal equipment being carried out adaptive realization cross-terminal;
3.8) carry out information interaction between main control end, service end and the client, comprise writing on the blackboard, enquirement or three classes are discussed;
3.9) each client chooses the content on the lantern slide, adds Word message, is kept at this locality as the notes note to certain page of lantern slide;
3.10) when all lantern slides were play end, main control end and client were carried out the persistent storage conversion, and intermediate form file and writing on the blackboard, enquirement, discussion, the comprehensive storage of notes note various information are saved in this locality.
Order in the above steps is all by the SOCKET channel transfer, and other information are all by the HTTP channel transfer.
4. method as claimed in claim 3 is characterized in that described step 3.7) in restructuring play and specifically may further comprise the steps:
3.71) obtain the intermediate file that is distributed at each Terminal Type;
3.72) select the picture of corresponding resolution to show at each Terminal Type;
3.73) calculating the ratio p of current terminal true resolution and standard resolution 1280*800, the position of p and each literal and dimension information are multiplied each other to do to be offset adaptively, calculates position and the dimension information of each literal under the current demonstration.
5. method as claimed in claim 3 is characterized in that described step 3.8) in the writing on the blackboard category information comprise alternately:
3.81.1) main control end delineates generating character and figure two class writings on the blackboard, wherein literal writing on the blackboard storage content of text and character formatting information, the routing information that figure writing on the blackboard storage represents with Bezier;
3.81.2) main control end with the storage writing on the blackboard information be delivered to service end;
3.81.3) all clients are to writing on the blackboard information and show;
Described enquirement category information comprises alternately::
3.82.1) if certain client is initiated to put question to, choose the content on the lantern slide, subsidiary word content of puing question to is preserved into enquirement information again;
3.82.2) this client sends enquirement information to service end;
3.82.3) main control end reception enquirement information and the demonstration next by transit server;
Described discussion category information comprises alternately:
3.83.1) if certain client is initiated discussion Word message for some pages to service end;
3.83.2) other clients and main control end receive discussion information and show;
3.83.3) other clients and main control end reply discussion information on service end.
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| CN105389391A (en) * | 2015-12-18 | 2016-03-09 | 天脉聚源（北京）教育科技有限公司 | Picture processing method and device |
| CN106095905A (en) * | 2016-06-08 | 2016-11-09 | 上海未达数码科技有限公司 | The Internet interaction platform play based on PPT |
| CN108235100A (en) * | 2016-12-14 | 2018-06-29 | 杭州海康威视数字技术股份有限公司 | Multi-display method, apparatus and system |
| CN116226418A (en) * | 2023-01-28 | 2023-06-06 | 创云融达信息技术(天津)股份有限公司 | Realization method of webpage version demonstration slide PPT |
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