CN110502155A - A kind of methods of exhibiting and device of shared data - Google Patents
A kind of methods of exhibiting and device of shared data Download PDFInfo
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- CN110502155A CN110502155A CN201910642774.7A CN201910642774A CN110502155A CN 110502155 A CN110502155 A CN 110502155A CN 201910642774 A CN201910642774 A CN 201910642774A CN 110502155 A CN110502155 A CN 110502155A
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- 230000006855 networking Effects 0.000 claims abstract description 71
- 230000011664 signaling Effects 0.000 claims description 96
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- 238000004891 communication Methods 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 14
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- 238000004590 computer program Methods 0.000 claims description 9
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
Abstract
The embodiment of the invention provides a kind of methods of exhibiting of shared data, the method is applied to view networking, in embodiments of the present invention, as being determined depending on triggering mode of the networked terminals to shared data for shared data transmitting terminal, then the shared data after determining triggering mode is sent to the receiving end of distal end again；According to the triggering mode, recognition and verification clearly can be carried out to the first current trigger data depending on networked terminals as shared data receiving end, and according to the triggering mode, shared data and trigger data are correctly presented on electronic whiteboard.The embodiment of the present invention can effectively avoid during scribble, and user has accidentally carried out touch control operation in the electronic whiteboard of transmitting terminal, or be identified as touch-control as a result, improving user's viewing experience the problem of leading to page jump on the electronic whiteboard of receiving end.
Description
Technical field
The present invention relates to technical field of data processing, more particularly to the methods of exhibiting and device of a kind of shared data,
And a kind of computer readable storage medium.
Background technique
Electronic whiteboard is that the integration apparatus of collection touch-control and display distally can be with ten in the usage scenario of electronic whiteboard
Divide and touch-control, scribble of opposite end etc. is easily watched to operate, there is extensive purposes under the scenes such as education, meeting.
At present during electronic whiteboard interactive display, the electronic whiteboard as data viewing end is showing being total to for opposite end
When enjoying data, it always will appear scribble breakpoint or display interface the phenomenon that jumping, influence user's viewing experience.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
A kind of methods of exhibiting of the shared data to solve the above problems, a kind of displaying device of shared data and a kind of computer can
Read storage medium.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of methods of exhibiting of shared data, the method is answered
It networks for regarding, includes regarding networked node server in view networking, connect with described depending on networked node server communication
Multiple view networked terminals, every described to be connected with an electronic whiteboard depending on networked terminals, wherein the view networked node server
In be provided with terminal list of attending a meeting, include multiple ethernet mac address in the terminal list of attending a meeting；The described method includes:
The first view networked terminals obtain the first shared data, and first shared data is projected to the electronics
Blank；
Described first receives the first trigger data that the electronic whiteboard is sent depending on networked terminals；Wherein, first touching
Data are sent out by the electronic whiteboard during showing first shared data, it is raw according to received trigger action
At；
Described first determines the triggering mode of first trigger data depending on networked terminals；
Described first adds first trigger data and the triggering depending on networked terminals in first shared data
Mode generates the first shared signaling；
Described first shared signaling is sent to the view networked node server depending on networked terminals by described first；The view
Networked node server casts to the described first shared signaling group and the MAC Address for terminal list of attending a meeting according to
Corresponding second view networked terminals；The second view networked terminals are used under the triggering mode, by the described first shared number
It is shown on the electronic whiteboard according to first trigger data.
Optionally, the triggering mode includes control mode touch mode and scribble mode；First trigger data includes point coordinate
And timestamp；
Described first includes: the step of determining the triggering mode of first trigger data depending on networked terminals
Described first judges the number and the timestamp of the first coordinate and last of described coordinate depending on networked terminals
Time interval between the timestamp of one coordinate；
If number >=predetermined number value of described coordinate, and the time interval >=predetermined time period, it is determined that institute
The triggering mode for stating the first trigger data is scribble mode；
It is on the contrary, it is determined that the triggering mode of first trigger data is control mode touch mode.
Optionally, the MAC Address includes termination number, and the corresponding user right of each termination number is different；
The second view networked terminals are used under the triggering mode, by first shared data and first touching
Hair data further comprise the step of showing on the electronic whiteboard:
The second view networked terminals are used to be based on the user right, receive corresponding first shared signaling；
The second view networked terminals are used under the triggering mode, by the institute in the corresponding first shared signaling
It states the first shared data and first trigger data is shown on the electronic whiteboard.
Optionally, which comprises
Described first when receiving the shared trigger action of split screen depending on networked terminals, generates the second shared data；
Described first adds second shared data depending on networked terminals in first shared data, and it is total to generate second
Enjoy signaling；
Described second shared signaling is sent to the view networked node server depending on networked terminals by described first；The view
Networked node server casts to the described second shared signaling group and the MAC Address for terminal list of attending a meeting according to
Corresponding second view networked terminals；The second view networked terminals are used to be directed to the described second shared signaling, and described first is total to
Data and second shared data split screen on the electronic whiteboard is enjoyed to show.
To solve the above-mentioned problems, the embodiment of the invention discloses the methods of exhibiting of another shared data, the methods
It networks applied to view, includes view networked node server in the view networking, connect with described depending on networked node server communication
Multiple view networked terminals, every described to be connected with an electronic whiteboard depending on networked terminals, wherein the view networked node service
It is provided with terminal list of attending a meeting in device, includes multiple ethernet mac address in the terminal list of attending a meeting；The described method includes:
The view networked node server receives the first shared signaling that the first view networked terminals are sent；Wherein, described
After one shared signaling determines depending on networked terminals the triggering mode of the first trigger data by described first, add in the first shared data
Generation when adding first trigger data and the triggering mode；First shared data is obtained by described first depending on networked terminals
It takes and is projected to the electronic whiteboard；
It is described to be used for terminal list of attending a meeting according to depending on networked node server, the described first shared signaling group is cast to
The second view networked terminals corresponding with the MAC Address；The second view networked terminals are used under the triggering mode, by institute
It states the first shared data and first trigger data is shown on the electronic whiteboard.
Optionally, the MAC Address includes termination number, and the corresponding user right of each termination number is different, institute
State user right has priority in the terminal list of attending a meeting；The described method includes:
It is described that the shared speaking request that multiple second view networked terminals are sent is received depending on networked node server；
The view networked node server parses the shared speaking request, obtains the termination number；
The view networked node server judges the user right of the second view networked terminals according to the termination number
Priority；
Priority of the view networked node server according to the user right, selected target second regard networked terminals；
The view networked node server generates response for the shared speaking request of the target second view networked terminals
Signaling；
It is described that the response signaling is sent to the view of target second networked terminals depending on networked node server.
To solve the above-mentioned problems, based on the same inventive concept, the embodiment of the invention also discloses a kind of shared datas
Show device, described device is applied to view networking, includes view networked node server in the view networking, network and save with the view
Multiple view networked terminals of point server communication connection, every described to be connected with an electronic whiteboard depending on networked terminals, wherein institute
It states depending on being provided with terminal list of attending a meeting in networked node server, in the terminal list of attending a meeting including multiple ethernet macs
Location；Described first comprises the following modules depending on networked terminals:
First shared data obtains module, for obtaining the first shared data, and first shared data is projected to
The electronic whiteboard；
First trigger data receiving module, the first trigger data sent for receiving the electronic whiteboard；Wherein, described
First trigger data during showing first shared data, is grasped by the electronic whiteboard according to received triggering
It generates；
Mode decision module is triggered, for determining the triggering mode of first trigger data；
First shared signaling generation module, for adding first trigger data and institute in first shared data
Triggering mode is stated, the first shared signaling is generated；
First shared signaling sending module, for the described first shared signaling to be sent to the view networked node service
Device；It is described depending on networked node server for attending a meeting according to terminal list, the described first shared signaling group is cast to and institute
State the corresponding second view networked terminals of MAC Address；The second view networked terminals are used under the triggering mode, by described the
One shared data and first trigger data are shown on the electronic whiteboard.
To solve the above-mentioned problems, based on the same inventive concept, the embodiment of the invention also discloses another shared datas
Displaying device, it includes view networked node server in view networking that described device, which is applied to view networking, with view networking
Multiple view networked terminals of node server communication connection, every described to be connected with an electronic whiteboard depending on networked terminals, wherein
It is described depending on being provided with terminal list of attending a meeting in networked node server, include multiple ethernet macs in the terminal list of attending a meeting
Address；It is described to be comprised the following modules depending on networked node server:
First shared signaling receiving module, the first shared signaling sent for receiving the first view networked terminals；Wherein, institute
After stating the triggering mode that the first shared signaling determines depending on networked terminals the first trigger data by described first, in the first shared data
It is generated when middle addition first trigger data and the triggering mode；First shared data is whole by the first view networking
End obtains and is projected to the electronic whiteboard；
First shared signaling group broadcasting module, for terminal list of attending a meeting according to, by the described first shared signaling multicast
To the second view networked terminals corresponding with the MAC Address；The second view networked terminals are used under the triggering mode, will
First shared data and first trigger data are shown on the electronic whiteboard.
The embodiment of the invention also discloses a kind of devices, comprising:
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors
When, so that described device executes the methods of exhibiting of one or more shared datas as described in the embodiments of the present invention.
The embodiment of the invention also discloses the computer programs of a kind of computer readable storage medium, storage to handle
Device executes the methods of exhibiting of shared data as described in the embodiments of the present invention.
The embodiment of the present invention includes following advantages:
Electronic whiteboard is connect by the embodiment of the present invention with depending on networked terminals, and constructs view networking transport link (eventually depending on networking
End-view networked node server-view networked terminals), using the characteristic of view networking, the insecurity and stabilization of network can be reduced
Property, substantially reduces drop probabilities, such that the shared data on an electronic whiteboard is synchronous with trigger data, is more completely shown in
On the electronic whiteboard of other view networked terminals, the interactive remote that electronic whiteboard is realized under education, conference scenario is synchronous；
In embodiments of the present invention, as the view networked terminals of shared data transmitting terminal to the triggering mode of shared data into
Row determines, then the shared data after determining triggering mode is sent to the receiving end of distal end again；According to the triggering mode, as
Shared data receiving end clearly can carry out recognition and verification to the first current trigger data depending on networked terminals, and according to this
Shared data and trigger data are correctly presented on electronic whiteboard by triggering mode.With this, can effectively avoid in scribble process
In, user has accidentally carried out touch control operation in the electronic whiteboard of transmitting terminal, or is identified as on the electronic whiteboard of receiving end
Touch-control improves user's viewing experience as a result, the problem of leading to page jump.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of the invention；
Fig. 2 is a kind of hardware structural diagram of node server of the invention；
Fig. 3 is a kind of hardware structural diagram of access switch of the invention；
Fig. 4 is the hardware structural diagram that a kind of Ethernet association of the invention turns gateway；
Fig. 5 is a kind of step flow chart of the methods of exhibiting embodiment one of shared data of the embodiment of the present invention；
Fig. 6 is a kind of step flow chart of split screen methods of exhibiting of the embodiment of the present invention；
Fig. 7 is a kind of step flow chart of the methods of exhibiting embodiment two of shared data of the embodiment of the present invention；
Fig. 8 is a kind of step flow chart of priority response method of the embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of the displaying Installation practice one of shared data of the embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of the displaying Installation practice two of shared data of the embodiment of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission,
Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication
All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or
Computer realizes that high-definition quality video plays.
Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network
First video flow.It is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
(Circuit Switching) meets Streaming demand using Packet Switching depending on networking technology.Depending on skill of networking
Art has flexible, the simple and low price of packet switch, is provided simultaneously with the quality and safety assurance of circuit switching, realizes the whole network friendship
Change the seamless connection of formula virtual circuit and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually
The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy
Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but
The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black
The attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".
Networking depending on networking is as described below:
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes: node server, access switch, terminal (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and it can connect Ethernet.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes: metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat
Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 embodiment of the present invention can be mainly divided into 3 classes: server depending on the equipment in networking, interchanger (including ether
Net association turns gateway), terminal (including various set-top boxes, encoding board, memory etc.).Metropolitan Area Network (MAN) can be divided on the whole depending on networking
(or national net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including ether
Net association turns gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment are as follows:
Node server:
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet；
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close
It is full, then it abandons；All pack buffer queues of 202 poll of switching engine module, are forwarded: 1) end if meeting the following conditions
It is less than that mouth sends caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, packet
Include the operation such as initialization, read-write to hard disk；CPU module 203 be mainly responsible for access switch, terminal (not shown) it
Between protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration, and, the configuration to disk array module 204.
Access switch:
As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould
The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 304 is come in enters switching engine
Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；
If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, may include two kinds of situations:
If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded: 1)
It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded:
1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 308 is configured by CPU module 304, to all downlink networks in programmable interval
Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,
Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined
Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410
(2byte), and enter corresponding receive and cache, otherwise abandon；
Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes: node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
Access net data packet mainly include following sections: destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections:
| DA | SA | Reserved | Payload | CRC |
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address；
Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages
64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in embodiments of the present invention: label, uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just
There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into
0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:
| DA | SA | Reserved | Label | Payload | CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Set is between the reserve bytes and payload of data packet.
With reference to Fig. 5, a kind of step flow chart of the methods of exhibiting embodiment one of shared data of the embodiment of the present invention is shown,
The method is applied to view networking, includes view networked node server in the view networking, with the view networked node server
Multiple view networked terminals of communication connection, every described to be connected with an electronic whiteboard depending on networked terminals, wherein the view is networked
It is provided with terminal list of attending a meeting in node server, includes multiple ethernet mac address in the terminal list of attending a meeting；The side
Method can specifically include following steps:
Step S501: the first view networked terminals obtain the first shared data, and first shared data is projected
To the electronic whiteboard；
In embodiments of the present invention, the first shared data be can be audio, video data, or document data or figure
Sheet data, first, which can be first depending on the mode that networked terminals obtain the first shared data, obtains depending on networked terminals to other equipment
It takes, for example the monitoring access server into view networking obtains, at this point, the first acquired shared data is monitor video money
Source；First depending on networked terminals obtain the first shared data mode be also possible to read be locally stored or USB interface insertion
Data, at this point, the first shared data is usually the data such as PowerPoint PPT or picture.
First get after the first shared data depending on networked terminals can be by HDMI_OUT interface by first shared data
It is projected to electronic whiteboard, then the user being located in front of the electronic whiteboard can be shared to shown first on electronic whiteboard
Data carry out the operation of touch-control or scribble.
Step S502: described first receives the first trigger data that the electronic whiteboard is sent depending on networked terminals；Wherein, institute
The first trigger data is stated by the electronic whiteboard during showing first shared data, according to received triggering
Operation generates；
In embodiments of the present invention, above-mentioned trigger action mainly includes the operation of touch-control and scribble, and the operation of touch-control is visual
It is clicked on electronic whiteboard for user, the single action time on electronic whiteboard is usually shorter, typicallys represent user
Currently is being selected or confirmed or the operation of jump page；The operation of scribble can be considered user cross on electronic whiteboard or
It draws a circle, the single action time on electronic whiteboard is usually longer, typicallys represent user and is currently annotating or explaining behaviour
Make.
Electronic whiteboard generates corresponding first trigger data according to received trigger action.First trigger data
User is referred mainly in the data that electronic whiteboard directly operates and generates, for example includes the data of touch information or information of scribbling.
Under normal conditions, trigger data can be associated with corresponding shared data automatically, and expression is when playing or showing the shared data
The trigger action of progress.It will include corresponding point coordinate in trigger data, which is with some point (ratio on electronic whiteboard
Such as first point of the central point or the lower left corner of first, upper left corner point or electronic whiteboard surface) it is after origin establishes coordinate system
And determine.Similarly, at this point, the coordinate can also correspond to some pixel of the shared data of current presentation on electronic whiteboard.
Next, the first trigger data is corresponded to the first currently displayed shared data by electronic whiteboard passes through HDMI_OUT
Interface is transmitted to the first view networked terminals.
Due to trigger action difference, the first trigger data generated is also different.For technical problem of the invention, in order to
Trigger action received by electronic whiteboard correctly can be fed back into user, the embodiment of the present invention is by the first trigger data
Before being sent to the user of viewing side, its triggering mode is added to the first trigger data, so that the view networked terminals energy of receiving end
It is enough correctly to distinguish the first currently received trigger data, and the triggering mode is pressed, by trigger data and shared data
The simultaneous display on electronic whiteboard.
Step S503: described first determines the triggering mode of first trigger data depending on networked terminals；
To achieve the above object, firstly, the embodiment of the present invention it needs to be determined that the first trigger data triggering mode, then such as
What is determined the triggering mode of the first trigger data inventor provide following methods:
The triggering mode includes control mode touch mode and scribble mode；First trigger data includes point coordinate and time
Stamp；
Judged and illustrated present invention is generally directed to control mode touch mode and scribble mode.Through inventor the study found that just touching
For control mode, touch control operation caused by people is usually of short duration on electronic whiteboard and determination, multiple touch control operation
Triggered time is discontinuous；For scribble mode, what people wanted to carry out is the operation of label or annotation, in electronic whiteboard
The primary scribble of upper progress operates, and the scribble time for operation of scribbling is usually longer and scribble line is continuous.Based on above-mentioned spy
Property, the embodiment of the present invention using point coordinate and each coordinate interval of timestamps come the triggering mode to current trigger data into
Row judgement.
Preferably, described first the step of determining the triggering mode of first trigger data depending on networked terminals, specifically can be with
Including following sub-step:
Sub-step 1: described first judges the time of the number of described coordinate and the first coordinate depending on networked terminals
Time interval between stamp and the timestamp of the last one point coordinate；
Sub-step 2: if number >=predetermined number value of described coordinate, and the time interval >=predetermined time period,
The triggering mode for then determining first trigger data is scribble mode；
It is on the contrary, it is determined that the triggering mode of first trigger data is control mode touch mode.
In touch-control on electronic whiteboard or scribble, the point coordinate that hand or stylus are contacted is more than for people's hand or stylus
One, and touch-control and scribble mode it is inconsistent, contacted point coordinate number be usually it is inconsistent, in the embodiment of the present invention
In, the point coordinate number for always defaulting scribble mode is greater than the point coordinate number of control mode touch mode.So the embodiment of the present invention designs
Predetermined number value about coordinate, when the number of the point coordinate in the first trigger data is greater than predetermined number value, i.e., tentatively
Determine that current triggering mode is scribble mode.However be also possible to following situations occur: (1) user carries out touch control operation, still
With stylus when clicking electronic whiteboard with excessive, stylus is since inertia has drawn longer line on electronic whiteboard, this time point
Coordinate number is likely to be more than predetermined number value；(2) user carries out scribble operation, but only one strigula of picture, this
The number of time point coordinate is also likely to be less than predetermined number value.Lead to asking for error in judgement because above situation occurs to reduce
Topic, the embodiment of the present invention also utilized between the time between the timestamp of the first coordinate and the timestamp of the last one point coordinate
Further judge every to triggering mode.
Under normal conditions, multiple coordinates of touch control operation be mostly simultaneously trigger, the timestamp of first coordinate and
Time interval between the timestamp of the last one point coordinate is shorter；And operational feedback of scribbling usually has road on electronic whiteboard
Diameter, such as a circle or a line or more complicated Chinese character or spelling, the timestamp of first coordinate and the last one point
Time interval between the timestamp of coordinate is longer, and therefore, time parameter has also been devised in the embodiment of the present invention, i.e. preset time is long
Degree, by by the time interval and preset time between the timestamp of the first coordinate and the timestamp of the last one point coordinate
Length is compared, and can effectively judge the triggering mode of the first trigger data.Moreover, for above-mentioned (1) plants situation, i.e.,
Stylus is set to have drawn longer line, but the timestamp of its first coordinate and the last one point on electronic whiteboard due to inertia
Time interval between the timestamp of coordinate is also shorter, almost millisecond rank, substantially negligible.For (2) plant situation, use
Family be it is purposive scribble operation is carried out to some word or some figure, cautious can also be operated when drawing strigula,
Time interval between the timestamp of generated first coordinate and the timestamp of the last one point coordinate is also longer.Cause
This, the embodiment of the present invention by the timestamp of number and the first coordinate to coordinate and the last one point coordinate when
Between stamp between time interval carry out simultaneously judge, can effectively determine first trigger data for control mode touch mode or scribble mode.
It should be noted that above-mentioned determining method is one of a kind of preferred embodiment of the invention, the present invention also be can be used
The pressure value of timestamp or electronic whiteboard when receiving trigger action between any two point etc. scheme to control mode touch mode and
Scribble mode is distinguished and is judged.Predetermined number value and predetermined time period can according to the operating habit of electronic whiteboard user into
Row setting, for example predetermined number value is set as 10, predetermined time period is 50 milliseconds etc., few herein for specific numerical value
For example, can be realized the parameter setting of the judgement scheme of step 1 of the embodiment of the present invention.
Step S504: described first added in first shared data depending on networked terminals first trigger data and
The triggering mode generates the first shared signaling；
In embodiments of the present invention, first the first trigger data and triggering are added in the first shared data depending on networked terminals
The mode of mode can be considered the addition triggering mode in the packet header of the first shared data, add in the load of the first shared data
First trigger data；Above-mentioned triggering mode can be identified in a manner of " 0 " or " 1 " in the header, such as " 1 " mark current first
Trigger data is scribble mode, and it is control mode touch mode that " 0 ", which is identified as current first trigger data,.First trigger data is shared with first
How data, which are realized to synchronize, belongs to the prior art, not described here any more.
First view networked terminals by the first trigger data and triggering mode and the first shared data it is packaged after, be considered as first
Shared signaling.
Described first shared signaling is sent to the view networked node service depending on networked terminals by step S505: described first
Device；It is described depending on networked node server for attending a meeting according to terminal list, the described first shared signaling group is cast to and institute
State the corresponding second view networked terminals of MAC Address；The second view networked terminals are used under the triggering mode, by described the
One shared data and first trigger data are shown on the electronic whiteboard.
It in embodiments of the present invention, is to share meeting in electronic whiteboard depending on the terminal list of attending a meeting in networked node server
Sharing at the beginning of and establish, the first view networked terminals can be transmitted under the control of existing Conference control software and invite instruction logical
It crosses and invites other to regard networked terminals membership depending on networked node server, and regarding networked node server can be according to the first view networking eventually
The corresponding terminal list of attending a meeting of invitation instruction creation at end, the MAC Address depending on networked terminals into the meeting all can be in the ginseng
It can be stored in terminal list.The entirety of one terminal list of attending a meeting is attended a meeting " group " that can regard as in multicast.Therefore, the first view connection
Network termination is by being sent to view networked node server for the first shared signaling depending on networking.It can use depending on networked node server
The mode of multicast (broadcasting in the member's range for terminal list of attending a meeting) casts to the first shared signaling group and the MAC Address pair
The the second view networked terminals answered.
In the normal situation of network, each second can synchronize depending on networked terminals and receive the first shared signaling, then by
One shared signaling is unpacked decoding, current play mode is limited to the triggering mode, and the first shared data and first are touched
Hair data are shown on the electronic whiteboard.Therefore, if second is defined depending on the triggering modes of networked terminals, then no matter network
Whether postpone, send and receive packets the time how, and under control mode touch mode, second only shows what touch-control was shown depending on the electronic whiteboards of networked terminals
As a result, such as jumping the corresponding page of touch-control；Under scribble mode, second depending on networked terminals blank will put coordinate pair it is seasonable between
Stamp display is shown as scribble as a result, being such as shown as drawing a circle or text annotation.
To sum up, for technical problem of the invention, from step S501~step S505 it is found that the embodiment of the present invention is made that
It improves: 1, connecting electronic whiteboard with depending on networked terminals below, and construct view networking transport link (depending on networked terminals-view networking
Node server-view networked terminals), using the characteristic of view networking, the insecurity and stability of network can be reduced, is dropped significantly
Low drop probabilities, such that the shared data on an electronic whiteboard is synchronous with trigger data, is more completely shown in other view connection
On the electronic whiteboard of network termination, the interactive remote that electronic whiteboard is realized under education, conference scenario is synchronous.2, as shared
Data sending terminal is determined depending on triggering mode of the networked terminals to shared data, then again by being total to after determining triggering mode
Enjoy the receiving end that data are sent to distal end；According to the triggering mode, as shared data receiving end can be clear depending on networked terminals
It is clear that recognition and verification carried out to the first current trigger data, and according to the triggering mode, just by shared data and trigger data
Really it is presented on electronic whiteboard.With this, can effectively avoid during scribble, user transmitting terminal electronic whiteboard accidentally
Touch control operation has been carried out, or has been identified as touch-control as a result, improving the problem of leading to page jump on the electronic whiteboard of receiving end
User viewing experience.
In practical electronic whiteboard application scenarios, the user right for the side of attending a meeting is different establish a capital it is identical, it is high or low.Such as
Trans-regional electronic whiteboard is shared in meeting, be may relate to during the sharing of shared data to part privacy concern, is not
Each side of attending a meeting has permission viewing.Therefore, to further increase the Information Security and privacy in shared procedure, the present invention
Another embodiment in additionally provide following methods,
The MAC Address includes termination number, and the corresponding user right of each termination number is different；
The second view networked terminals are used under the triggering mode, by first shared data and first touching
Hair data further comprise the step of showing on the electronic whiteboard:
The second view networked terminals are used to be based on the user right, receive corresponding first shared signaling；
The second view networked terminals are used under the triggering mode, by the institute in the corresponding first shared signaling
It states the first shared data and first trigger data is shown on the electronic whiteboard.
In view networking, by MAC Address and networked node server communication is regarded depending on networked terminals, includes in MAC Address
There is termination number, termination number is equivalent to the pass of the view networked terminals in view networking, and each termination number is corresponding
User right it is different.All data of the first shared data are sent to respectively by the way of multicast depending on networked node server
A side's of attending a meeting (the second view networked terminals), but since user right difference, second can only be based on the user right depending on networked terminals,
The corresponding first shared signaling is received, and can only be by the first shared data and the first triggering number in the corresponding first shared signaling
It is shown according on electronic whiteboard, the individualized viewing of shared data is realized with this, received data are carried out using user right
It limits, improves the Information Security and privacy in shared procedure, and implementation is convenient reliable.
In addition, the embodiment of the invention also provides the modes that a kind of split screen is shown.With reference to Fig. 6, implementation of the present invention is shown
A kind of step flow chart of split screen methods of exhibiting of example, the method can specifically include following steps:
Step S601: described first when receiving the shared trigger action of split screen depending on networked terminals, generates the second shared number
According to；
In embodiments of the present invention, the shared trigger action of split screen can be user and click split screen button in display interface,
Then the operation of other data is uploaded, other data are total to after upload first regards networked terminals as the second of the embodiment of the present invention
Enjoy data.
Step S602: described first adds second shared data depending on networked terminals in first shared data,
Generate the second shared signaling；
In embodiments of the present invention, after the first shared data and the second shared data are encapsulated as the second shared signaling, the
The instruction that the first shared data and the second shared data are carried out to split screen display available is had in the packet header of two shared signalings.
Described second shared signaling is sent to the view networked node service depending on networked terminals by step S603: described first
Device；It is described depending on networked node server for attending a meeting according to terminal list, the described second shared signaling group is cast to and institute
State the corresponding second view networked terminals of MAC Address；The second view networked terminals are used to be directed to the described second shared signaling, by institute
The first shared data and second shared data split screen on the electronic whiteboard is stated to show.
In embodiments of the present invention, it first is saved depending on networked terminals by the way that the second shared signaling is sent to view networking depending on networking
Point server.Then the first shared signaling group is cast to and the MAC Address depending on the mode of networked node server by utilizing multicast
The explanation of the implementation reference step S505 of corresponding second view networked terminals, not described here any more.Second view networked terminals
After receiving the second shared signaling, the first shared data and the second shared data can be subjected to split screen according in the second shared signaling
The instruction of display, by first shared data and second shared data, split screen is shown on the electronic whiteboard.
With reference to Fig. 7, a kind of step flow chart of the methods of exhibiting embodiment two of shared data of the embodiment of the present invention is shown,
The method is applied to view networking, includes view networked node server in the view networking, with the view networked node server
Multiple view networked terminals of communication connection, every described to be connected with an electronic whiteboard depending on networked terminals, wherein the view is networked
It is provided with terminal list of attending a meeting in node server, includes multiple ethernet mac address in the terminal list of attending a meeting；The side
Method can specifically include following steps:
Step S701: the view networked node server receives the first shared signaling that the first view networked terminals are sent；Its
In, it is total first after the first shared signaling determines depending on networked terminals the triggering mode of the first trigger data by described first
Enjoy generation when adding first trigger data and the triggering mode in data；First shared data is regarded by described first
Networked terminals obtain and are projected to the electronic whiteboard；
Step S702: it is described to be used for terminal list of attending a meeting according to depending on networked node server, described first is shared
Signaling group casts to the second view networked terminals corresponding with the MAC Address；The second view networked terminals are used in the triggering
Under mode, first shared data and first trigger data are shown on the electronic whiteboard.
The embodiment of the present invention elaborates a kind of reality of the methods of exhibiting of shared data from the angle depending on networked node server
Existing mode, based on the same inventive concept, the introduction of implementing principle and technical effect reference embodiment one, to save space, In
This is not introduced excessively.
In addition, the case where being shared in scene in electronic whiteboard conference, requesting speech simultaneously there are multiple sides of attending a meeting, then such as
Where a spokesman is determined in multiple side of attending a meeting, the embodiment of the invention also provides a kind of modes of priority response, can
Quickly to determine spokesman, and the use of the higher side of attending a meeting of user right can be ensured, to guarantee the smooth development of meeting.It is described
MAC Address includes termination number, and the corresponding user right of each termination number is different, and the user right is attended a meeting described
There is priority in terminal list；
With reference to Fig. 8, a kind of step flow chart of priority response method of the embodiment of the present invention is shown, the method is specific
It may include steps of:
Step S801: described that the shared speech that multiple second view networked terminals are sent is received depending on networked node server
Request；
Step S802: the view networked node server parses the shared speaking request, obtains the termination number；
Step S803: the view networked node server judges the second view networked terminals according to the termination number
User right priority；
Step S804: priority of the view networked node server according to the user right, selected target second regard
Networked terminals；
Step S805: described to be asked for the target second depending on the shared speech of networked terminals depending on networked node server
It asks, generates response signaling；
Step S806: described that the response signaling is sent to the view of target second networking eventually depending on networked node server
End.
From step S801~step S806 it is found that the embodiment of the present invention is that each termination number depending on networked terminals is assigned with
User right, each user right is different, has certain priority.When have it is multiple depending on networked terminals and meanwhile request speech when,
The shared speaking request that each second view networked terminals are sent is received first depending on networked node server, by parsing the shared hair
Speech request, gets the termination number of the second view networked terminals, and inquire the user right of the termination number, can determine each
The priority of the user right of second view networked terminals generates response signaling then to the higher user's preferential answering of priority,
And the response signaling is sent to the target second (target second refers to depending on networked terminals, in this request depending on networked terminals
In speech, that higher the second view networked terminals of user right priority).Later, target second regards networked terminals
It makes a speech as first in the embodiment of the present invention depending on networked terminals, or touch-control or painting is carried out to electronic whiteboard connected to it
The operation of crow.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
With reference to Fig. 9, method described in corresponding Fig. 5 of the embodiment of the present invention shows a kind of shared data of the embodiment of the present invention
Displaying Installation practice one structural schematic diagram, it includes that view networking saves in view networking that described device, which is applied to view networking,
Point server, with the multiple view networked terminals connecting depending on networked node server communication, every view networked terminals connect
It is connected to an electronic whiteboard, wherein described depending on being provided with terminal list of attending a meeting, the terminal column of attending a meeting in networked node server
It include multiple ethernet mac address in table；Described first can specifically include depending on networked terminals with lower module:
First shared data obtains module 901, projects for obtaining the first shared data, and by first shared data
To the electronic whiteboard；
First trigger data receiving module 902, the first trigger data sent for receiving the electronic whiteboard；Wherein,
First trigger data by the electronic whiteboard during showing first shared data, according to received touching
Hair operation generates；
Mode decision module 903 is triggered, for determining the triggering mode of first trigger data；
First shared signaling generation module 904, for adding first trigger data in first shared data
With the triggering mode, the first shared signaling is generated；
First shared signaling sending module 905 takes for the described first shared signaling to be sent to the view networked node
Business device；It is described depending on networked node server for attending a meeting according to terminal list, the described first shared signaling group is cast to and
The MAC Address corresponding second regards networked terminals；The second view networked terminals are used under the triggering mode, will be described
First shared data and first trigger data are shown on the electronic whiteboard.
The method of the corresponding embodiment of the present invention, triggering mode decision module 903 further comprises following submodule:
Triggering mode judging submodule, for judging the number of described coordinate and the timestamp of the first coordinate
Time interval between the timestamp of the last one point coordinate；
Scribble mode determines submodule, for number >=predetermined number value in described coordinate, and the time interval
When >=predetermined time period, determine that the triggering mode of first trigger data is scribble mode；
Control mode touch mode determines submodule, in the number >=predetermined number value for removing described coordinate, and time
In the case where interval >=predetermined time period, determine that the triggering mode of first trigger data is control mode touch mode.
The method of the corresponding embodiment of the present invention, described first can specifically include depending on networked terminals with lower module:
Second shared data generation module generates the second shared data when for receiving the shared trigger action of split screen；
Second shared signaling generation module, it is raw for adding second shared data in first shared data
At the second shared signaling；
Second shared signaling sending module, for the described second shared signaling to be sent to the view networked node service
Device；It is described depending on networked node server for attending a meeting according to terminal list, the described second shared signaling group is cast to and institute
State the corresponding second view networked terminals of MAC Address；The second view networked terminals are used to be directed to the described second shared signaling, by institute
The first shared data and second shared data split screen on the electronic whiteboard is stated to show.
With reference to Figure 10, method described in corresponding Fig. 7 of the embodiment of the present invention shows a kind of shared data of the embodiment of the present invention
Displaying Installation practice two structural schematic diagram, it includes that view networking saves in view networking that described device, which is applied to view networking,
Point server, with the multiple view networked terminals connecting depending on networked node server communication, every view networked terminals connect
It is connected to an electronic whiteboard, wherein described depending on being provided with terminal list of attending a meeting, the terminal column of attending a meeting in networked node server
It include multiple ethernet mac address in table；It is described to can specifically include depending on networked node server with lower module:
First shared signaling receiving module 1001, the first shared signaling sent for receiving the first view networked terminals；Its
In, it is total first after the first shared signaling determines depending on networked terminals the triggering mode of the first trigger data by described first
Enjoy generation when adding first trigger data and the triggering mode in data；First shared data is regarded by described first
Networked terminals obtain and are projected to the electronic whiteboard；
First shared signaling group broadcasting module 1002, for terminal list of attending a meeting according to, by the described first shared signaling
Group casts to the second view networked terminals corresponding with the MAC Address；The second view networked terminals are used in the triggering mode
Under, first shared data and first trigger data are shown on the electronic whiteboard.
The method of the corresponding embodiment of the present invention, described to can specifically include depending on networked node server with lower module:
Shared speaking request receiving module is asked for receiving the shared speech that multiple described second send depending on networked terminals
It asks；
Termination number obtains module and obtains the termination number for parsing the shared speaking request；
Priority judgment module, for judging the user right of the second view networked terminals according to the termination number
Priority；
Target second regards networked terminals chosen module, for the priority according to the user right, selected target second
Depending on networked terminals；
Response signaling generation module is generated and is rung for the shared speaking request for the target second view networked terminals
Answer signaling；
Response signaling sending module regards networked terminals for the response signaling to be sent to the target second.
For a kind of displaying Installation practice of shared data, since it is real with a kind of methods of exhibiting of shared data
It is substantially similar to apply example, so being described relatively simple, referring to a kind of portion of the methods of exhibiting embodiment of shared data in place of correlation
It defends oneself bright.
The embodiment of the invention also provides a kind of devices, comprising:
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors
When, so that described device executes a kind of methods of exhibiting of one or more shared datas as described in the embodiments of the present invention.
The embodiment of the invention also provides the computer programs of a kind of computer readable storage medium, storage to handle
Device executes a kind of methods of exhibiting of shared data as described in the embodiments of the present invention.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
It is computer-readable to a kind of methods of exhibiting and device of shared data provided by the present invention, and one kind above
Storage medium is described in detail, and specific case used herein explains the principle of the present invention and embodiment
It states, the above description of the embodiment is only used to help understand the method for the present invention and its core ideas；Meanwhile for this field
Those skilled in the art, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, to sum up institute
It states, the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of methods of exhibiting of shared data, which is characterized in that the method is applied to view networking, described depending on including in networking
Depending on networked node server, with the multiple view networked terminals being connect depending on networked node server communication, every view connection
Network termination is connected with an electronic whiteboard, wherein described depending on being provided with terminal list of attending a meeting, the ginseng in networked node server
It can include multiple ethernet mac address in terminal list；The described method includes:
The first view networked terminals obtain the first shared data, and it is white that first shared data is projected to the electronics
Plate；
Described first receives the first trigger data that the electronic whiteboard is sent depending on networked terminals；Wherein, the first triggering number
It during showing first shared data, is generated according to received trigger action according to by the electronic whiteboard；
Described first determines the triggering mode of first trigger data depending on networked terminals；
Described first adds first trigger data and the triggering mode depending on networked terminals in first shared data,
Generate the first shared signaling；
Described first shared signaling is sent to the view networked node server depending on networked terminals by described first；The view networking
Node server casts to the described first shared signaling group corresponding with the MAC Address for terminal list of attending a meeting according to
Second view networked terminals；It is described second view networked terminals be used under the triggering mode, will first shared data with
First trigger data is shown on the electronic whiteboard.
2. the method according to claim 1, wherein the triggering mode includes control mode touch mode and scribble mode；
First trigger data includes point coordinate and timestamp；
Described first includes: the step of determining the triggering mode of first trigger data depending on networked terminals
Described first depending on networked terminals judge described coordinate number and the first coordinate timestamp and the last one
Time interval between the timestamp of point coordinate；
If number >=predetermined number value of described coordinate, and the time interval >=predetermined time period, it is determined that described
The triggering mode of one trigger data is scribble mode；
It is on the contrary, it is determined that the triggering mode of first trigger data is control mode touch mode.
3. the method according to claim 1, wherein the MAC Address includes termination number, each terminal
The corresponding user right of number is different；
The second view networked terminals are used under the triggering mode, by first shared data and the first triggering number
Further comprise according to the step of being shown on the electronic whiteboard:
The second view networked terminals are used to be based on the user right, receive corresponding first shared signaling；
The second view networked terminals are used under the triggering mode, by described the in the corresponding first shared signaling
One shared data and first trigger data are shown on the electronic whiteboard.
4. the method according to claim 1, wherein the described method includes:
Described first when receiving the shared trigger action of split screen depending on networked terminals, generates the second shared data；
Described first adds second shared data depending on networked terminals in first shared data, generates the second shared letter
It enables；
Described second shared signaling is sent to the view networked node server depending on networked terminals by described first；The view networking
Node server casts to the described second shared signaling group corresponding with the MAC Address for terminal list of attending a meeting according to
Second view networked terminals；The second view networked terminals are used to be directed to the described second shared signaling, by the described first shared number
According to split screen is shown on the electronic whiteboard with second shared data.
5. a kind of methods of exhibiting of shared data, which is characterized in that the method is applied to view networking, described depending on including in networking
Depending on networked node server, with the multiple view networked terminals being connect depending on networked node server communication, every view connection
Network termination is connected with an electronic whiteboard, wherein described depending on being provided with terminal list of attending a meeting, the ginseng in networked node server
It can include multiple ethernet mac address in terminal list；The described method includes:
The view networked node server receives the first shared signaling that the first view networked terminals are sent；Wherein, described first is total
After enjoying the triggering mode that signaling determines depending on networked terminals the first trigger data by described first, institute is added in the first shared data
Generation when stating the first trigger data and the triggering mode；First shared data is obtained simultaneously by the first view networked terminals
It is projected to the electronic whiteboard；
It is described depending on networked node server for attending a meeting according to terminal list, the described first shared signaling group is cast to and institute
State the corresponding second view networked terminals of MAC Address；The second view networked terminals are used under the triggering mode, by described the
One shared data and first trigger data are shown on the electronic whiteboard.
6. according to the method described in claim 5, it is characterized in that, the MAC Address includes termination number, each terminal
The corresponding user right of number is different, and the user right has priority in the terminal list of attending a meeting；The method packet
It includes:
It is described that the shared speaking request that multiple second view networked terminals are sent is received depending on networked node server；
The view networked node server parses the shared speaking request, obtains the termination number；
The view networked node server judges the excellent of the user right of the second view networked terminals according to the termination number
First grade；
Priority of the view networked node server according to the user right, selected target second regard networked terminals；
The view networked node server generates response letter for the shared speaking request of the target second view networked terminals
It enables；
It is described that the response signaling is sent to the view of target second networked terminals depending on networked node server.
7. a kind of displaying device of shared data, which is characterized in that described device is applied to view networking, described depending on including in networking
Depending on networked node server, with the multiple view networked terminals being connect depending on networked node server communication, every view connection
Network termination is connected with an electronic whiteboard, wherein described depending on being provided with terminal list of attending a meeting, the ginseng in networked node server
It can include multiple ethernet mac address in terminal list；Described first comprises the following modules depending on networked terminals:
First shared data obtains module, for obtaining the first shared data, and first shared data is projected to described
Electronic whiteboard；
First trigger data receiving module, the first trigger data sent for receiving the electronic whiteboard；Wherein, described first
Trigger data during showing first shared data, is given birth to by the electronic whiteboard according to received trigger action
At；
Mode decision module is triggered, for determining the triggering mode of first trigger data；
First shared signaling generation module, for adding first trigger data and the touching in first shared data
Hair mode generates the first shared signaling；
First shared signaling sending module, for the described first shared signaling to be sent to the view networked node server；Institute
It states depending on networked node server for terminal list of attending a meeting according to, the described first shared signaling group is cast to and the MAC
The corresponding second view networked terminals in address；The second view networked terminals are used under the triggering mode, and described first is total to
It enjoys data and first trigger data is shown on the electronic whiteboard.
8. a kind of displaying device of shared data, which is characterized in that described device is applied to view networking, described depending on including in networking
Depending on networked node server, with the multiple view networked terminals being connect depending on networked node server communication, every view connection
Network termination is connected with an electronic whiteboard, wherein described depending on being provided with terminal list of attending a meeting, the ginseng in networked node server
It can include multiple ethernet mac address in terminal list；It is described to be comprised the following modules depending on networked node server:
First shared signaling receiving module, the first shared signaling sent for receiving the first view networked terminals；Wherein, described
After one shared signaling determines depending on networked terminals the triggering mode of the first trigger data by described first, add in the first shared data
Generation when adding first trigger data and the triggering mode；First shared data is obtained by described first depending on networked terminals
It takes and is projected to the electronic whiteboard；
First shared signaling group broadcasting module, for terminal list of attending a meeting according to, by the described first shared signaling group cast to
The MAC Address corresponding second regards networked terminals；The second view networked terminals are used under the triggering mode, will be described
First shared data and first trigger data are shown on the electronic whiteboard.
9. a kind of device characterized by comprising
One or more processors；With
One or more machine readable medias of instruction are stored thereon with, when being executed by one or more of processors, are made
Obtain a kind of methods of exhibiting for one or more shared datas that described device is executed as described in claim 1 to 6.
10. a kind of computer readable storage medium, which is characterized in that its computer program stored executes processor as weighed
Benefit requires a kind of 1 to 6 described in any item methods of exhibiting of shared data.
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