CN107517191A - A kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system - Google Patents

A kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system Download PDF

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Publication number
CN107517191A
CN107517191A CN201610438889.0A CN201610438889A CN107517191A CN 107517191 A CN107517191 A CN 107517191A CN 201610438889 A CN201610438889 A CN 201610438889A CN 107517191 A CN107517191 A CN 107517191A
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CN
China
Prior art keywords
xmpp
data
classroom
svg
intelligent terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610438889.0A
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Chinese (zh)
Inventor
黄志文
刘亚辉
薛朝文
叶茜茜
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Shanghai Elite Education Technology Co Ltd
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Shanghai Elite Education Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Elite Education Technology Co Ltd filed Critical Shanghai Elite Education Technology Co Ltd
Priority to CN201610438889.0A priority Critical patent/CN107517191A/en
Publication of CN107517191A publication Critical patent/CN107517191A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/401—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
    • H04L65/4015—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference where at least one of the additional parallel sessions is real time or time sensitive, e.g. white board sharing, collaboration or spawning of a subconference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/08—Protocols specially adapted for terminal emulation, e.g. Telnet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The invention discloses a kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system, 1) classroom participant with XMPP conference models log in XMPP server, into classroom regardless of front and rear；2) classroom participant obtains classroom historical record by XMPP server；3) the synchronous current classroom record of XMPP server and classroom participant；4) after the data on blank are encapsulated by SVG, XMPP server is transferred to by XMPP；5) XMPP server synchronization whiteboard data gives all online users；6) the SVG data that client parsing receives, according to device screen size real-time rendering.A kind of more people based on mobile intelligent terminal provided by the invention in real time can interactive whiteboard system, the communications protocol of whiteboard data is used as using XMPP and its Extended Protocol, record storage format using SVG agreements as whiteboard data, there is provided the function of more people's real-time interactives.

Description

A kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system
Technical field
In real time can interactive whiteboard system the present invention relates to a kind of more people based on mobile intelligent terminal.
Background technology
In K12 (kindergarten through twelfth grade's writes a Chinese character in simplified form) online education solution, in order to Teachers and students are solved apart from upper short slab, the real time multi-human for not needing only provide for voice and video is interactive, it is necessary to provides writing, picture Etc. can the interactive white board interactive system of real time multi-human.Mobile intelligent terminal is white for that can interact due to the diversity of screen size The design of plate needs to consider the adaptation of the presentation effect and different size screens on compared with the small screen.The invention provides one kind More people based on mobile intelligent terminal in real time can interactive whiteboard system, be that a kind of more people based on XMPP and SVG agreements in real time may be used Interactive whiteboard system, it is interactive by real-time blank to meet classroom interactions' demand under Mobile Online's education scene, effectively solve multiple Knowledge delivery in miscellaneous teaching link, ensure the two-way reception and registration of information between teachers and students.
The content of the invention
It is an object of the invention to provide a kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system, specifically For：
1) classroom participant logs in XMPP server with XMPP conference models, into classroom regardless of front and rear；
2) classroom participant obtains classroom historical record by XMPP server；
3) the synchronous current classroom record of XMPP server and classroom participant；
4) after the data on blank are encapsulated by SVG, XMPP server is transferred to by XMPP；
5) XMPP server synchronization whiteboard data gives all online users；
6) the SVG data that client parsing receives, according to device screen size real-time rendering.
A kind of above-mentioned more people based on mobile intelligent terminal in real time can interactive whiteboard system, wherein：Classroom participant with Mobile browser form logs in XMPP server, and mobile browser passes through XMPP server cluster, XMPP clothes by load balance Business device cluster and several database transmissions data.
A kind of above-mentioned more people based on mobile intelligent terminal in real time can interactive whiteboard system, wherein：XMPP conference models The transmission time sequence of lower stroke data is：Data are realized that data encapsulate by XMPP clients by SVG, SVG strokes, SVG data solutions Analysis is transmitted to XMPP service ends, XMPP service ends and transmits SVG strokes, the parsing of SVG data to several XMPP clients.
The present invention has the advantages that relative to prior art：Whiteboard data is used as using XMPP and its Extended Protocol Communications protocol, the record storage format using SVG agreements as whiteboard data, there is provided the function of more people's real-time interactives, specifically Function is referring to following table.
This programme Other schemes
Support desktop application V V
Support browser application V V
Support Mobile solution V V
One-to-one interaction V V
One-to-many interaction V V
Multi-to-multi is interactive V
More lossless adaptations of size screens V
Take pictures V
Picture V V
PDF V V
PPT V
It is hand-written V V
Geometric figure V V
Erasing rubber V V
Playback V
Brief description of the drawings
Fig. 1 is the transmission time sequence figure of stroke data under XMPP conference models.
Fig. 2 is XMPP server frame diagram.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
It is an object of the invention to provide a kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system, specifically For：
1) classroom participant logs in XMPP server with XMPP conference models, into classroom regardless of front and rear；
2) classroom participant obtains classroom historical record by XMPP server；
3) the synchronous current classroom record of XMPP server and classroom participant；
4) after the data on blank are encapsulated by SVG, XMPP server is transferred to by XMPP；
5) XMPP server synchronization whiteboard data gives all online users；
6) the SVG data that client parsing receives, according to device screen size real-time rendering.
A kind of above-mentioned more people based on mobile intelligent terminal in real time can interactive whiteboard system, wherein：Classroom participant with Mobile browser form logs in XMPP server, and mobile browser passes through XMPP server cluster, XMPP clothes by load balance Business device cluster and several database transmissions data.
A kind of above-mentioned more people based on mobile intelligent terminal in real time can interactive whiteboard system, wherein：XMPP conference models The transmission time sequence of lower stroke data is：Data are realized that data encapsulate by XMPP clients by SVG, SVG strokes, SVG data solutions Analysis is transmitted to XMPP service ends, XMPP service ends and transmits SVG strokes, the parsing of SVG data to several XMPP clients.
The background knowledge of agreement：
XMPP brief introductions：
XMPP(Extensible Messageing and Presence Protocol：Scalable message is assisted with existing View) be current main flow four kinds of IM (IM：One of instant messaging, instant message) agreement, XMPP is that one kind is based on XML agreement, it inherits flexible expansionary in XML environment.Therefore, the application based on XMPP has superpower expansible Property.XMPP after extension can handle the demand of user by sending the information of extension, and on XMPP top Establish such as content delivering system and the service application program based on address.Moreover, XMPP is contained for the soft of server end Part agreement, make it to be conversed with another, this causes developer to be easier to establish client applications or prepare to one System adds function.
SVG brief introductions
SVG scalable vector graphicses (Scalable Vector Graphics) are to be based on extensible markup language (XML), For describing a kind of graphical format of two-dimension vector graphics.SVG is a kind of new two-dimension vector graphics form that W3C is formulated, It is the network training room standard in specification.SVG strictly defers to XML grammers, and is described with the descriptive language of text formatting Picture material, therefore be a kind of and unrelated vector graphics format of image resolution ratio.
In order to provide the function of more people's real-time interactives, whiteboard system must is fulfilled for following condition：
1) any people caused content (including stroke, picture, document) on blank is required for real-time synchronization in classroom To owner；
2) anyone enters classroom any time, can quick obtaining to classroom historical content and Current Content；
3) teacher to the control instruction of blank also must real-time synchronization to owner, including page turning, audio and video playing etc.；
4) playback of class offerings is supported；
5) blank common function is supported：Hand-written, geometric figure, erasing rubber, pen are wide, the color of pen, take pictures, picture, PDF, PPT etc.；
6) uniformity of the presentation effect on various sizes of screen is ensured.
The present invention uses XMPP and communications protocol of its Extended Protocol as whiteboard data, ensures with 4 conditions of going forward Reach, the record storage format using SVG agreements as whiteboard data, ensure that the realization of rear 2 conditions.
The combination of XMPP and SVG agreements, such as one section of stroke of transmission
<Messagetype=" groupchat "
Id=" 9E947583-7B00-4A60-BEC6-AE8D094B2CC3 ">
<body>
<Svg timestamp=" 1456557777.182958 " x=" 0.000000 " y=" 0 " width=" " 1024.000000 height=" 768.000000 "><Path fill=" none " stroke=" 4a90e2 " stroke- The 454.8M543.0 454.8Q553.5 of width=" 2 " d=" M532.5464.5Q532.5 464.5 543.0 445.0568.2 434.0M568.2 434.0Q583.0 423.0 614.2 405.2M614.2405.2Q645.5 387.5 657.2 382.5M657.2 382.5Q669.0 377.5692.2 365.8M692.2 365.8Q715.5 354.0 739.2 345.2M739.2345.2Q763.0 336.5 783.2 330.0M783.2 330.0Q803.5 323.5818.8 320.2M818.8 320.2Q834.0 317.0 842.8 316.8M842.8316.8Q851.5 316.5 855.5 317.5M855.5 317.5Q859.5 318.5858.0 326.2M858.0 326.2Q856.5 334.0 846.5 345.0M846.5345.0Q836.5 356.0 822.8 369.8M822.8 369.8Q809.0 383.5792.2 402.2M792.2 402.2Q775.5 421.0 759.8 440.0M759.8440.0Q744.0 459.0 729.2 476.0M729.2 476.0Q714.5 493.0706.0 505.0M706.0 505.0Q697.5 517.0 693.5 524.5M693.5524.5Q689.5 532.0 689.5 534.5M689.5 534.5Q689.5 537.0702.2 532.5M702.2 532.5Q715.0 528.0 737.5 514.5M737.5514.5Q760.0 501.0 790.2 485.0M790.2 485.0Q820.5 469.0852.2 451.8M852.2 451.8Q884.0 434.5 918.8 418.5M918.8418.5Q953.5 402.5 987.2 385.0"/></svg>
</body>
</message>
XMPP control protocols, such as the loading of PPT documents
<Messagetype=" groupchat "
Id=" 9E947583-7B00-4A60-BEC6-AE8D094B2CC3 ">
<body>
<Powerpoint key=" Lesson3 ">
<Command action=" open " url=" Lesson3 " x=" 0 " y=" 0 "
Width=" 0 " height=" 0 " page=" 0 "></command>
</powerpoint>
</body>
</message>
Blank video playback flow：
1) total data of certain class is obtained；
2) temporally stamp parses total data；
3) according to screen resolution, whiteboard data is rendered in timestamp order.
Although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention, any this area skill Art personnel, without departing from the spirit and scope of the present invention, when a little modification and perfect, therefore the protection model of the present invention can be made Enclose to work as and be defined by what claims were defined.

Claims (3)

1. a kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system, it is characterised in that：.
1) classroom participant logs in XMPP server with XMPP conference models, into classroom regardless of front and rear；
2) classroom participant obtains classroom historical record by XMPP server；
3) the synchronous current classroom record of XMPP server and classroom participant；
4) after the data on the blank of classroom are encapsulated by SVG, XMPP server is transferred to by XMPP；
5) XMPP server synchronization whiteboard data gives all online users；
6) the SVG data that client parsing receives, according to device screen size real-time rendering.
2. a kind of more people based on mobile intelligent terminal as claimed in claim 1 in real time can interactive whiteboard system, its feature exists In：Classroom participant logs in XMPP server in the form of moving browser, and mobile browser is taken by load balance by XMPP Business device cluster, XMPP server cluster and several database transmissions data.
3. a kind of more people based on mobile intelligent terminal as claimed in claim 2 in real time can interactive whiteboard system, its feature exists In the transmission time sequence of stroke data is under XMPP conference models：Data are realized that data encapsulate by XMPP clients by SVG, SVG Stroke, the parsing of SVG data transmit to XMPP service ends, XMPP service ends and transmit SVG strokes, the parsing of SVG data to several XMPP clients.
CN201610438889.0A 2016-06-17 2016-06-17 A kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system Pending CN107517191A (en)

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Application Number Priority Date Filing Date Title
CN201610438889.0A CN107517191A (en) 2016-06-17 2016-06-17 A kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610438889.0A CN107517191A (en) 2016-06-17 2016-06-17 A kind of more people based on mobile intelligent terminal in real time can interactive whiteboard system

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Publication Number Publication Date
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108897507A (en) * 2018-05-02 2018-11-27 华南理工大学 A kind of synchronizing white display methods and system based on Android end wisdom classroom
CN109460221A (en) * 2018-10-23 2019-03-12 安徽慧视金瞳科技有限公司 A kind of intelligent view cloud Teaching System Multifunctional white board drawing tool
CN110392227A (en) * 2019-06-20 2019-10-29 视联动力信息技术股份有限公司 Data processing method, device and storage medium
CN111142829A (en) * 2019-12-30 2020-05-12 北京爱论答科技有限公司 Classroom explanation method, system, device and storage medium
CN111355700A (en) * 2019-06-27 2020-06-30 鸿合科技股份有限公司 Network whiteboard sharing method and system and electronic equipment
CN112711374A (en) * 2020-12-31 2021-04-27 安徽听见科技有限公司 Multi-terminal cooperation method, device and equipment based on conference whiteboard application
CN113489768A (en) * 2021-06-29 2021-10-08 青岛海信商用显示股份有限公司 Data synchronization method and device of electronic whiteboard

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103532829A (en) * 2013-09-03 2014-01-22 国家电网公司 Instant messaging system electronic white board access method based on XMPP (xml based messaging and presence protocol)
CN103929351A (en) * 2013-09-27 2014-07-16 百视通网络电视技术发展有限责任公司 Drawing board real-time response method based on Web and system
US20150256638A1 (en) * 2014-03-05 2015-09-10 Ricoh Co., Ltd. Fairly Adding Documents to a Collaborative Session

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103532829A (en) * 2013-09-03 2014-01-22 国家电网公司 Instant messaging system electronic white board access method based on XMPP (xml based messaging and presence protocol)
CN103929351A (en) * 2013-09-27 2014-07-16 百视通网络电视技术发展有限责任公司 Drawing board real-time response method based on Web and system
US20150256638A1 (en) * 2014-03-05 2015-09-10 Ricoh Co., Ltd. Fairly Adding Documents to a Collaborative Session

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108897507A (en) * 2018-05-02 2018-11-27 华南理工大学 A kind of synchronizing white display methods and system based on Android end wisdom classroom
CN108897507B (en) * 2018-05-02 2021-11-23 华南理工大学 Whiteboard synchronous display method and system based on android intelligent classroom
CN109460221A (en) * 2018-10-23 2019-03-12 安徽慧视金瞳科技有限公司 A kind of intelligent view cloud Teaching System Multifunctional white board drawing tool
CN110392227A (en) * 2019-06-20 2019-10-29 视联动力信息技术股份有限公司 Data processing method, device and storage medium
CN110392227B (en) * 2019-06-20 2021-10-19 视联动力信息技术股份有限公司 Data processing method, device and storage medium
CN111355700A (en) * 2019-06-27 2020-06-30 鸿合科技股份有限公司 Network whiteboard sharing method and system and electronic equipment
CN111355700B (en) * 2019-06-27 2023-04-07 鸿合科技股份有限公司 Network whiteboard sharing method and system and electronic equipment
CN111142829A (en) * 2019-12-30 2020-05-12 北京爱论答科技有限公司 Classroom explanation method, system, device and storage medium
CN112711374A (en) * 2020-12-31 2021-04-27 安徽听见科技有限公司 Multi-terminal cooperation method, device and equipment based on conference whiteboard application
CN113489768A (en) * 2021-06-29 2021-10-08 青岛海信商用显示股份有限公司 Data synchronization method and device of electronic whiteboard

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