CN102646346B - Mobile video playing system and method for remote instruction - Google Patents
Mobile video playing system and method for remote instruction Download PDFInfo
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Abstract
The invention relates to a mobile video playing method for remote instruction, which based on the mobile video playing system. The mobile video playing system comprises a storage module, a user communication module, a video switching module, a video synchronization module and a video protocol switching module, wherein the storage module stores course video, the user communication module is connected with a user terminal, when the user communication module receives a playing mode switching command from the user terminal, the video switching module switches the current course video into target course video according to information related to the target playing mode, the video synchronization module synchronizes the playing position of the target course video with the current playing position of the current course video according to information of the current playing position, which is related to the current course video, and the video protocol switching module switches a protocol used by playing the current video according to the condition that the current video is played successfully. According to the invention, more course seeing mode options can be provided for a user, and further better use experiences are provided.
Description
Technical field
The present invention relates to mobile video and play field, relate in particular to the mobile video playing method of giving lessons for long-range.
Background technology
Along with the development of internet, applications correlation technique, the video high definition epoch arrive gradually.At present, following mobile video playing method comes into operation: utilize the audio frequency and video solution of Media or Real type to carry out online teaching (giving lessons); The Streaming Media that uses FMS to provide, etc.For the latter, due to the restriction of the technology such as Streaming Media compression transmission, FMS can only provide compared with the video of primary bit stream and reduced size.
Compatibility issue due to hardware configuration and system version, part mobile phone (for example, mobile phone based on Android operating system) do not support with streaming displaying video, prior art does not have good solution yet, but play in progressive download mode, cause request low-response, poor stability, this technology has not adapted to the specific demand of mobile learning.
For above-mentioned reasons, existing a kind of mobile video Play System has adopted 3 panes courseware, and it cannot play on mobile phone, and existing mobile phone courseware is not realized video and synchronizeed and play with teaching materials, and video playback response is slower.Such as certain existing mobile video Play System can only displaying video on mobile phone, and the actual part that belongs to video of captions, student cannot be according to a certain chapters and sections in any redirect courseware of learning demand, in addition, existing mobile phone courseware adopts patterns noninteractive, video+captions mostly, captions insert into by video later stage compilation, once issue cannot revise, therefore cannot be according to the service needed captions that upgrade in time.Above-mentioned courseware interactive mode be student to the courseware unidirectional shirtsleeve operation of (specifically referring to video here), it does not meet the demand of specialized network training and mobile learning.
In the past, the restriction due to technology and network condition before the viewing area finite sum of the page, can only provide undersized video (resolution is lower).Because undersized video only accounts for the sub-fraction of screen area, can not represent a lot of contents, conventionally teaching materials being put into video region in addition with forms such as word pictures shows, otherwise, if teaching materials are also incorporated in video,, because video resolution is lower, watch the user of instructional video to be difficult to see clearly the teaching materials content in video, also wasted on the other hand the most of viewing area on screen.
At present, benefit from the network bandwidth increase, with and the message transmission rate brought increase, Online Video based on technology such as Flash (for example can have higher sharpness, can reach 720p or higher resolution), interactive mode mainly contains by networking client software or for example, by special application software (, the software of education services provider exploitation) and watches video.
Summary of the invention
The problem to be solved in the present invention
Incompatibility due to hardware configuration and system version, part mobile phone (for example, mobile phone based on Android operating system) do not support with streaming displaying video, prior art does not have good solution yet, but play in progressive download mode, cause request low-response, poor stability, this technology has not adapted to the specific demand of mobile learning.
In addition, in the situation that use the form of HD video to give lessons, large-sized video council takies the major part space of screen, at this moment, has ready conditions the contents such as teaching materials of the forms such as the word beyond the video area in above-mentioned situation and/or picture are attached in video.
Realizing a kind of mode that HD video gives lessons is to utilize interactive electric whiteboard.Particularly, teaching materials are made to for example PPT(Multi-media Material, be not limited to PPT, also comprise Flash, word etc.) form put in interactive whiteboard, the personnel of giving lessons give lessons before standing in interactive whiteboard, this scene that simulating reality is given lessons well, like this, can allow student have the on the spot in person experience of attending class.
In the situation that using interactive electric whiteboard; prior art is when representing the content of courses; for example, because the personnel of giving lessons and electronic whiteboard (appear in same video; the personnel of giving lessons need to be when giving lessons with finger to the corresponding contents in electronic whiteboard; or need to carry out writing on the blackboard), the personnel that give lessons often can even whole teaching teaching materials or the writings on the blackboard of shield portions when giving lessons.This is, because student's (seeing class personnel) can't see teaching materials or other content being blocked, the inconvenience that can cause student to learn sometimes.
The means of technical solution problem
The problems referred to above for prior art, present inventor has adopted the interactive electric whiteboard that also can record when writing, at the video of the personnel of giving lessons are given lessons (personnel that give lessons give lessons and operate on electronic whiteboard), record simultaneously, the content synchronization of electronic whiteboard is recorded as to video.Like this, when obtaining the video that the personnel of giving lessons give lessons (demonstration give lessons personnel course video), can also obtain the content video (hide the personnel's that give lessons course video, for example, pure teaching materials video) of electronic whiteboard.
Thereby, when student learns with regard to this course, this student can independently select " demonstration give lessons personnel " or " hiding the personnel that give lessons " two kinds of play mode at any time,, can select to play respectively give lessons video and pure teaching materials video, so just can solve the problem that the personnel of giving lessons are blocked lecture contents, thereby more effectively utilize user's the viewing area of seeing class terminal screen.
According to an aspect of the present invention, provide a kind of for long-range mobile video Play System of giving lessons, comprise memory module, telex network module, video frequency switching module, audio video synchronization module, and video protocols handover module, described memory module storage course video, described telex network module is connected with user terminal, wherein, when described telex network module receives play mode switching command from described user terminal: the information of obtaining the current play position of relevant current course video, and the information of the current play position of relevant current course video is provided to described audio video synchronization module, and, also from this play mode switching command, extract the information of relevant target play mode, and the information of relevant target play mode is provided to described video frequency switching module, described video frequency switching module arrives target course video according to the information of relevant target play mode by described current course video switch, wherein, described audio video synchronization module is according to the information of the current play position of relevant current course video, the play position of described target course video is synchronizeed with the current play position of described current course video, and via described telex network module, described target course video is provided to described user terminal and plays, wherein, the success or not that described video protocols handover module is play according to current video, switch the agreement that current video playback is used.
According to an aspect of the present invention, this mobile video Play System also comprises video calling module,
According to an aspect of the present invention, when described telex network module receives course program request order from user terminal, from this course program request order, extract curriculum information, and this curriculum information is offered to described video calling module, described video calling module calls relevant course video from described memory module according to this curriculum information, and via described telex network module, this course video is sent to user terminal.
According to an aspect of the present invention, in described memory module, database is installed, described database comprises course data, course time point data, course teaching materials data, course video data, the course student data with each course correlation connection.
According to an aspect of the present invention, in described database, also comprise knowledge point and video mapping table, time point and video mapping table, course and video mapping table and teaching materials and video mapping table, in described database, also comprise exam pool data and time point and exam pool mapping table, and the information of the current play position of described relevant current course video comprises one or more in current video reproduction time dot information, current knowledge dot position information, current teaching materials positional information, current exam pool positional information.
According to an aspect of the present invention, when user watches course video by user terminal, according to described time point and video mapping table, knowledge point and video mapping table, course and video mapping table, teaching materials and video mapping table, one or more in knowledge point and exam pool mapping table, when course video is played to relevant position, by user terminal, to user, point out the knowledge point relevant to the relevant position of this course video, teaching materials chapters and sections, exercise, and one or more in other curriculum information, and, according to the feedback of user terminal, control the broadcasting of video.
According to an aspect of the present invention, described telex network module is connected with user terminal by wire communication or communication, and described user terminal is one or more in personal computer, handheld terminal.
According to an aspect of the present invention, described current course video is for showing the personnel's that give lessons course video and hiding in the personnel's that give lessons course video, and described target course video is for showing the personnel's that give lessons course video and hiding another in the personnel's that give lessons course video.
According to an aspect of the present invention, described user terminal comprises gesture identification module, be used for according to user the touch operation on the screen of described user terminal by described current course video switch to target course video, wherein, the variation of described user terminal continuous touch location on the screen of described user terminal according to user calculates touch direction and touch speed, and generate video switch order and send to described video frequency switching module according to described touch direction and described touch speed, described video frequency switching module arrives target course video according to described video switch order by described current course video switch.
According to an aspect of the present invention, described current course video is for showing the course video of teaching materials and showing in the personnel's that give lessons course video, and described target course video is for showing the course video of teaching materials and showing another in the personnel's that give lessons course video.
According to an aspect of the present invention, a kind of mobile video playing method for long-range mobile video Play System of giving lessons is provided, described mobile video Play System comprises memory module, telex network module, video frequency switching module, video calling module, and audio video synchronization module, described memory module storage course video, described telex network module is connected with user terminal, described mobile video playing method comprises the steps: step S10, described telex network module judges whether to receive course program request order, if receive course program request order, forward step S20 to, step S20, described telex network module is extracted curriculum information from this order, and this curriculum information is offered to described video calling module, next, forwards step S30 to, step S30, described video calling module calls relevant course video according to described curriculum information from described memory module, and transmit and play described course video by user terminal according to the first agreement, and, judge that whether user terminal has successfully play this course video, if user terminal has successfully been play this course video according to the first agreement, forwards step S40 to, if user terminal fails and plays this course video according to the first agreement, forward step S35 to, step S35, by the first protocol switching, it is second protocol, and utilize second protocol to continue displaying video, afterwards, and forward step S40, step S40 to, in playing the process of course video, described telex network module judges whether to receive play mode switching command from described user terminal, if receive play mode switching command, forwards step S50 to, step S50, records the current play position of current course video, next, forwards step S60 to, step S60 extracts the information of relevant target play mode from the play mode switching command receiving, and next, forwards step S70 to, and step S70, according to the information of relevant target play mode, described current course video switch is arrived to target course video, the play position of described target course video is synchronizeed with the current play position of described current course video, via described telex network module, described target course video is provided to described user terminal, and from the play position of described target course video, starts to play.
According to an aspect of the present invention, described step S20 also comprises: by user terminal, point out user to select play mode, next, after user has selected play mode, forward described step S30 to.
According to an aspect of the present invention, and, described step S30 or step S70 also comprise: when user watches course video by user terminal, according to time point and video mapping table, described knowledge point and video mapping table, course and video mapping table, teaching materials and video mapping table, one or more in knowledge point and exam pool mapping table, when course video is played to relevant position, by user terminal, to user, point out the knowledge point relevant to the relevant position of this course video, teaching materials chapters and sections, exercise, and one or more in other curriculum information.
Advantage of the present invention
The present invention has not only realized and by computer, had seen the major function of class in the past, has also realized and has adapted to representing and interactive mode of touch screen.Client has correspondingly realized streaming and gradual broadcasting, and can switch different agreements according to responsive state, to adapt to different network environments and terminal device, makes video playback better reliability, compatibility stronger.
In addition, from the above mentioned, according to embodiments of the invention, when student learns with regard to this course, can only show with of the prior art give lessons video or teaching materials content, and can not arbitrarily switch and synchronous mode difference, this student can freely select " demonstration give lessons personnel's (comprising the personnel of giving lessons and teaching materials) " or " hiding the personnel's (only teaching materials) that give lessons " two kinds of play mode as required at any time, , can select to play respectively give lessons on-the-spot video and the video of pure teaching materials, and, can also keep the synchronism in video switch process, so just can solve the problem that the personnel of giving lessons are blocked lecture contents.Furtherly, user can also be switched at any time as required other and see class pattern, keeps the synchronous of study schedule simultaneously.
Thus, according to embodiments of the invention, not only can more effectively utilize the viewing area of seeing class terminal screen, can also more see class model selection to seeing that class user provides, and then be seen that class user brings better experience.In addition, user, by finger touch screen, can for example be switched video image and the teaching materials in courseware in the mode of animation effect.Use gesture Switch Video, compare traditional button click and carry out Switch Video, user is operated more smooth, convenient, and solved that traditional 3 panes courseware represents on mobile phone and the problem of mutual difficulty.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram of mobile video Play System according to an embodiment of the invention; And
Fig. 2 is the process flow diagram of mobile video playing method according to an embodiment of the invention.
Embodiment
In the following description, for illustrative purposes, a large amount of specific detail have been set forth.Yet, it is evident that for a person skilled in the art, can without these specific detail in the situation that, implement the present invention.In addition, in the following description, for illustrative purposes, various system detail have been described.It should be noted that and it is evident that for a person skilled in the art, can in various systems, carry out the present invention, the department of computer science that comprises the inhomogeneity operating system of the moving any number electronic installation of unifying.
Will be by reference to above-mentioned accompanying drawing, by further understanding the present invention for the description of embodiment below.
Fig. 1 is the schematic block diagram of mobile video Play System 100 according to an embodiment of the invention.As shown in Figure 1, mobile video Play System 100 comprises memory module 110, telex network module 120, video calling module 130, video frequency switching module 140, audio video synchronization module 150 and video protocols handover module 160 according to an embodiment of the invention.
In addition, in database, also comprise a plurality of relation tables, for example, time point and video mapping table, knowledge point and video mapping table, course and video mapping table, teaching materials and video mapping table etc.In knowledge point and video mapping table, recorded the corresponding relation of knowledge point and video, as beginning and the end position of certain knowledge point in video.In course and video mapping table, recorded the corresponding relation of course and video, video file as corresponding in certain course.In teaching materials and video mapping table, recorded the corresponding relation of teaching materials and video, as beginning and the end position of the chapters and sections of teaching materials in video, etc.In addition, in database, also can comprise the corresponding relation of above various data, as which video a branch of instruction in school all comprises and teaching materials, each video time are put corresponding teaching materials position, knowledge point that each video time is corresponding etc. information.
In database, also can comprise exam pool data and knowledge point and exam pool mapping table etc., wherein record the relevance of exam pool and course, knowledge point, teaching materials etc.
Telex network module 120 is used for being connected with user terminal, with receive that user sends to various command and the data of seeing that class is relevant, and send and the relevant Various types of data of giving lessons to user, as course video data.Particularly, for example, when user wants to watch certain course, user sends course program request order by user terminal to mobile video Play System 100, after telex network module 120 receives this order, from this order, extract curriculum information, for example course numbering, offers video calling module 130 by this curriculum information.Video calling module 130 calls associated video according to this curriculum information from database, and sends to user terminal via described telex network module.Alternatively, video calling module 130 can send to user terminal by the specific part of associated video according to other parameter of course program request order, for example, sees transmission displaying video the position that class finishes from last time.
Telex network module 120 can be connected with user terminal by modes such as wire communication (, LAN (Local Area Network), internet), radio communication (, 2G, 3G mobile communications network, WIFI) for example, for example.Described user terminal can be the equipment such as personal computer, radio communication device (as mobile phone), PDA, panel computer.
In addition, telex network module 120 also can be used to receive to course and play other relevant order from user terminal, for example, play mode switching command, this order is used for switching between " demonstration give lessons personnel's (comprising the personnel of giving lessons and teaching materials) " or " hiding the personnel's (only teaching materials) that give lessons " two kinds of play mode.
When receiving described play mode switching command via telex network module 120, from this order, extract the information that relevant user wants the play mode that is switched to, and be provided to video frequency switching module 140.Video frequency switching module 140 carries out the switching of play mode according to play mode information, and existing play mode is switched to the play mode that user wants.
In addition, when receiving described play mode switching command via telex network module 120, also obtain the information of the play position of the course video that relevant user watching simultaneously, and be provided to audio video synchronization module 150.Audio video synchronization module 150 is according to the information of the play position of obtained relevant course video and by the video after switching and switching audio video synchronization before,, make the play position of the video of " demonstration give lessons personnel " or the video of " hiding the personnel that give lessons " synchronous, thereby, according to play position, can also make corresponding knowledge point and teaching materials synchronous, thereby the class of seeing that user keeps normally, links up is experienced.That is to say, audio video synchronization module 150 can also record the position of current knowledge point, teaching materials etc., and keeps multiple synchronous, thereby the class of seeing that user can carry out normally, link up is experienced.
Video protocols handover module 160 is used for switching the agreement that current video playback is used, for example RTSP agreement and http protocol.For example, when user terminal adopts the failure of RTSP agreement displaying video, video protocols handover module 160 changes current broadcasting (transmission) agreement into http protocol, thereby system can automatically switch to http protocol and proceed to play.
In addition, alternatively, when user watches course video, mobile video Play System 100 can be according in time point and video mapping table, knowledge point and video mapping table, course and video mapping table, teaching materials and video mapping table, knowledge point and exam pool mapping table etc. one or more, when course video is played to relevant position, by user terminal, to user, point out knowledge point, teaching materials chapters and sections, exercise and other curriculum information relevant to the relevant position of this course video.Particularly, for example, for the order of classes or grades at school that has exercise, also can point out student (user) to carry out the exercise of exercise, if need to doing, this course listens to the teacher to continuing after exercise, the judgement that also this system can be correlated with,, if do right just permission, continue to listen to the teacher, otherwise just need to again listen the content of correlated knowledge point or the topic of reforming.
In addition, alternatively, described user terminal comprises gesture identification module, be used for the touch operation on the screen of described user terminal according to user by described current course video (for example, the course video that shows the personnel that give lessons) (be for example switched to target course video, the course video that shows teaching materials), wherein, the variation of described user terminal continuous touch location on the screen of described user terminal according to user calculates touch direction and touch speed, and generate video switch order and send to described video frequency switching module 140 according to described touch direction and described touch speed, described video frequency switching module 140 arrives target course video according to described video switch order by described current course video switch.
The detailed process that realizes described gesture identification is as follows.As example, user terminal response user touch event, obtains the poor of the horizontal ordinate of the first touch point (pressing a little) and the horizontal ordinate of last touch point (lifting a little), and, according to the touch mistiming of each touch point, calculate the touch mobile and horizontal speed between 2 again.If the touch mobile and horizontal speed that the difference of the horizontal ordinate of the horizontal ordinate of the first touch point (pressing a little) and last touch point (lifting a little) is greater than between 200 pixels and 2 is greater than 200 pixel/seconds, by described current course video switch to target course video.In addition, alternatively, also can first judge difference positive and negative of the horizontal ordinate of the first touch point (pressing a little) and the horizontal ordinate of last touch point (lifting a little), and according to described positive and negative determine touch glide direction, and select thus different target course videos.
Thus, user, by finger touch screen, can for example be switched video image and the teaching materials in courseware in the mode of animation effect.Use gesture Switch Video, compare traditional button click and carry out Switch Video, user is operated more smooth, convenient, and solved that traditional 3 panes courseware represents on mobile phone and the problem of mutual difficulty.
Fig. 2 is the process flow diagram of mobile video playing method according to an embodiment of the invention.
As shown in Figure 2, first, this mobile video playing method starts along with the operation of mobile video Play System.At step S10, telex network module 120 judges whether to receive course program request order.If the "Yes" that judgment result is that at step S10,, if receive course program request order, at step S20, telex network module 120 is extracted curriculum information from this order, this curriculum information is offered to video calling module 130, thereby complete the selection of course, and point out user to select play mode by user terminal, next, after user has selected play mode, the method forwards step S30 to.
At step S30, video calling module 130 calls the course video with this course correlation according to curriculum information from memory module 110, and according to used agreement (the first agreement, for example, RTSP agreement) transmit (and being play by user terminal) course video, and judge whether user terminal successfully plays this course video.If in the "Yes" that judgment result is that of step S30, that is, if user terminal has successfully been play this course video according to the first agreement, forward step S40 to.
If in the "No" that judgment result is that of step S30, that is, if user terminal fails and plays this course video according to the first agreement, forward step S35 to.At step S35, by used the first protocol switching, be second protocol, continue displaying video, and forward step S40 to.
Next, at step S40, in the process of video playback, judge whether to receive play mode switching command.
If in the "Yes" that judgment result is that of step S40, that is, if receive play mode switching command, forward step S50 to.At step S50, record current play position, for example, current play time information recording is arrived to memory module 110.Next, at step S60, whether the play mode switching command that judgement receives indicates " being switched to without giving lessons personnel's pattern ".
If in the "Yes" that judgment result is that of step S60, that is, if the play mode switching command receiving indication " is switched to without giving lessons personnel's pattern ", forward step S80 to.At step S80, current play mode is switched to without giving lessons personnel's pattern,, to synchronize with the current play position of described current course video without course video (the target course video) play position of giving lessons under personnel's pattern, and via described telex network module, described target course video is provided to described user terminal and plays.Here, if those skilled in the art will appreciate that, current play mode has been without giving lessons personnel's pattern, performs step S80 and does not mean that and carry out play mode blocked operation, and in fact, in the case, play mode blocked operation is not performed.
On the other hand, if in the "No" that judgment result is that of step S60, that is, if the play mode switching command receiving indication " being switched to the personnel's pattern of giving lessons " forwards step S70 to.At step S70, current play mode has been switched to the personnel's pattern of giving lessons,, to there is course video (the target course video) play position of giving lessons under personnel's pattern to synchronize with the current play position of described current course video, and via described telex network module, described target course video is provided to described user terminal and plays.Here, if those skilled in the art will appreciate that, current play mode has been the personnel's pattern of giving lessons, and performs step S80 and do not mean that to carry out play mode blocked operation, and in fact, in the case, play mode blocked operation is not performed.
Finally, it will be apparent to one skilled in the art that the system of can be used as, method or computer program realize the aspect of one embodiment of the present of invention.Thereby, the form of the embodiment that the aspect of one embodiment of the present of invention can adopt whole hardware implementation examples, whole implement software examples (comprising firmware, main flow software, microcode etc.) or comprise software and hardware aspect, rises and can be commonly referred to as " module " or " system " here.In addition, the aspect of one embodiment of the present of invention can adopt on it, to realize the form of the computer program that the mode of one or more tangible computer-readable mediums of computer readable program code realizes.
Can utilize the combination in any of one or more computer-readable mediums.Computer-readable medium can be computing machine scale signal media or computer-readable recording medium.For example, computer-readable recording medium can be but is not limited to electronics, magnetic, optics, electromagnetism, infrared or semiconductor system, unit or aforementioned applicable combination arbitrarily.The example more specifically of computer-readable recording medium (non exhaustive list) can comprise: have electrical connection, portable computer diskette, the hard disk such as mass storage device, random-access memory (ram), ROM (read-only memory) (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), optical fiber, CDROM, light storage device, magnetic memory apparatus or the aforesaid applicable combination arbitrarily of one or more circuits.In the context of the present specification, computer-readable recording medium can be any tangible medium, its can comprise or store by instruction execution system, equipment or device use or with the program of its combination.Can use and include but not limited to wireless, wired, optical fiber, radio frequency (RF) or aforesaid suitable combination arbitrarily, be transmitted in the program code of realizing on computer-readable medium.For carrying out the form of the combination in any that the computer program code of the operation of one embodiment of the present of invention can one or more programming languages, write, comprise such as the OO programming language of Java, Smalltalk, C++ etc. and such as traditional process programming language of the programming language of C programming language or type.
Above-mentioned each process flow diagram and schematic block diagram illustrate framework, function and the operation of the possible realization of system according to each embodiment of the present invention, method and computer program product.In this, each frame in process flow diagram or block diagram can representation module, code snippet or part, and it comprises for realizing one or more executable instructions of specific logical function.It shall yet further be noted that in some replaceable realization, the function marking in frame can be upset the order marking in the drawings and occur.For example, depend on related function, the step in two frames drawing continuously in fact can almost occur simultaneously, or the step in frame can occur with reversed sequence sometimes.Also will note, each frame of block diagram and/or process flow diagram and the frame of block diagram and/or process flow diagram can combine as required or split, its combination or fractionation can be realized by the combination of the system based on specialized hardware or specialized hardware and computer instruction, and this system is carried out specific function or operation.For example, the step S80 in Fig. 2 and step S70 can merge into a step,, switch the video that will play according to target play mode that is.
Term used herein is only for describing the object of specific embodiment, and, be not intended to limit the present invention.For the purpose of illustration and description, presented the description of one or more embodiment of the present invention, but that it is not intended to is exhaustive, is not also restricted to form disclosed in this invention.For those of ordinary skill in the art, many modifications and change will be obvious.Embodiment is selected and describes principle of the present invention and practical application are described best, and makes others skilled in the art can understand the present invention, because have the various embodiment of various modifications, is suitable for conceived application-specific.In sum, those skilled in the art will appreciate that the above embodiment of the present invention can be made various modifications, modification and be replaced, it all falls into the protection scope of the present invention limiting as claims.
For example, although in the above-described embodiments, play mode switching command is used for showing at ＂ that give lessons personnel's (comprising the personnel of giving lessons and teaching materials) ＂ and ＂ hide to give lessons and switches between these two kinds of play mode of personnel's (only teaching materials) ＂, yet, those skilled in the art is appreciated that completely, described play mode is not limited to above-mentioned two kinds of play mode, for example, can also between " explicit knowledge's point " and " demonstration give lessons video " these two kinds of play mode, switch, can also between " showing relevant exercise " and " explicit knowledge's point " these two kinds of play mode, switch.Even, also can between the play mode more than two kinds, switch, for example, can also between " show relevant exercise ", " explicit knowledge's point " and " demonstration give lessons personnel " these three kinds of play mode, switch, etc.For brevity, at this, do not enumerate.
Claims (8)
1. one kind for long-range mobile video playing method of giving lessons, it is based on mobile video Play System, described mobile video Play System comprises memory module, telex network module, video frequency switching module, video calling module and audio video synchronization module, described memory module storage course video, described telex network module is connected with user terminal
Described mobile video playing method comprises the steps:
Step S10, described telex network module judges whether to receive course program request order, if receive course program request order, forwards step S20 to;
Step S20, described telex network module is extracted curriculum information from this order, and this curriculum information is offered to described video calling module, next, forwards step S30 to;
Step S30, described video calling module calls relevant course video according to described curriculum information from described memory module, and transmit and play described course video by user terminal according to the first agreement, and, judge that whether user terminal has successfully play this course video, if user terminal has successfully been play this course video according to the first agreement, forwards step S40 to, if user terminal fails and plays this course video according to the first agreement, forward step S35 to;
Step S35, is second protocol by the first protocol switching, and utilizes second protocol to continue displaying video, afterwards, and forwards step S40 to,
Step S40, in playing the process of course video, described telex network module judges whether to receive play mode switching command from described user terminal, if receive play mode switching command, forwards step S50 to;
Step S50, records the current play position of current course video, next, forwards step S60 to;
Step S60 extracts the information of relevant target play mode from the play mode switching command receiving, and next, forwards step S70 to; And
Step S70, according to the information of relevant target play mode, described current course video switch is arrived to target course video, the play position of described target course video is synchronizeed with the current play position of described current course video, via described telex network module, described target course video is provided to described user terminal, and from the play position of described target course video, starts to play.
2. mobile video playing method as claimed in claim 1, wherein, described step S20 also comprises: by user terminal, point out user to select play mode, next, after user has selected play mode, forward described step S30 to.
3. mobile video playing method as claimed in claim 1 or 2, wherein, in described memory module, database is installed, described database comprises course data, course time point data, course teaching materials data, course video data, the course student data with each course correlation connection.
4. mobile video playing method as claimed in claim 3, wherein, in described database, also comprise time point and video mapping table, knowledge point and video mapping table, course and video mapping table and teaching materials and video mapping table, in described database, also comprise exam pool data and time point and exam pool mapping table
And the information of the current play position of described relevant current course video comprises one or more in current video reproduction time dot information, current knowledge dot position information, current teaching materials positional information, current exam pool positional information.
5. mobile video playing method as claimed in claim 1 or 2, described telex network module is connected with user terminal by wire communication or communication, and described user terminal is one or more in personal computer, handheld terminal.
6. mobile video playing method as claimed in claim 4, wherein, described step S30 or step S70 also comprise: when user watches course video by user terminal, according to described time point and video mapping table, described knowledge point and video mapping table, course and video mapping table, teaching materials and video mapping table, one or more in knowledge point and exam pool mapping table, when course video is played to relevant position, by user terminal, to user, point out the knowledge point relevant to the relevant position of this course video, teaching materials chapters and sections, exercise, and one or more in other curriculum information.
7. mobile video playing method as claimed in claim 1 or 2, wherein, described current course video is for showing the course video of teaching materials and showing in the personnel's that give lessons course video, and described target course video is for showing the course video of teaching materials and showing another in the personnel's that give lessons course video.
8. mobile video playing method as claimed in claim 5, described user terminal comprises gesture identification module, be used for according to user the touch operation on the screen of described user terminal by described current course video switch to target course video,
Wherein, the variation of described user terminal continuous touch location on the screen of described user terminal according to user calculates touch direction and touch speed, and generate video switch order and send to described video frequency switching module according to described touch direction and described touch speed, described video frequency switching module arrives target course video according to described video switch order by described current course video switch.
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