CN104580308A - Virtual desktop reappearing and pushing method and device and virtual desktop system - Google Patents
Virtual desktop reappearing and pushing method and device and virtual desktop system Download PDFInfo
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- CN104580308A CN104580308A CN201310496341.8A CN201310496341A CN104580308A CN 104580308 A CN104580308 A CN 104580308A CN 201310496341 A CN201310496341 A CN 201310496341A CN 104580308 A CN104580308 A CN 104580308A
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
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Abstract
The invention discloses a virtual desktop reappearing and pushing method and device, and a virtual desktop system. The virtual desktop reappearing method comprises the following steps: receiving virtual desktop information from master control equipment by at least one slave control equipment; reappearing a second virtual desktop as same as a first virtual desktop of the master control equipment according to the virtual desktop information. With the virtual desktop reappearing method, the problem of high server pressure caused by increment of clients during sharing of virtual desktops in related technologies is solved, the server pressure is reduced, and the demands of the virtual desktop system on the bandwidth are reduced.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of virtual desktop replay method, virtual desktop method for pushing, virtual desktop reproducer, virtual desktop pusher and virtual desktop system.
Background technology
In recent years, education sector Informatization Development is rapid, and school information network is day by day perfect, and computer network classroom also obtains universal gradually.But, present stage some computer network classrooms construction, Faculty and Students are mostly adopted to enjoy separately respective PC (Personal Computer, referred to as PC) pattern, and using PC pattern to face following problems: high, a large amount of PC resources idle of buying lower deployment cost is wasted, final-period management is difficult in maintenance, noise radiation power consumption is large ... how can build a low cost, be easy to management, energy saving, green health computer network classroom, be the focus of education sector informatization always.
Cloud terminal is used to substitute the student terminal of conventional P C as computer network classroom, while completing education sector informatization target, with the access of more low cost, less deployment time completion system like a cork.Cloud terminal pattern is used to dispose computer network classroom, teacher computer selects in Cloud Server virtual machine to serve as, machine for student selects cloud terminal to substitute conventional P C, by the virtual desktop of the client's side link virtual machine in cloud terminal, without the need to changing its existing comprehensive wiring system and network structure, lower deployment cost is cheaper, it is more convenient to implement.In addition, virtual machine in Cloud Server uses form (Windows) operating system, courseware in computer network teaching in classroom project is also is mostly designs based on Windows operating system, so only corresponding teaching software need be installed on Cloud Server/teacher computer, numerous cloud terminal/students also can enjoy Courseware Resource simultaneously independently, teaching network structure is clearly bright and clear, and final-period management is safeguarded also more easily simple.
In the virtual desktop application scenarios of classroom instruction, often need a virtual desktop to be shared to multiple user share use simultaneously.Usually have the master control personnel (i.e. teacher) of a desktop to be operated by virtual desktop terminal access desktop in such a scenario, other desktop user (i.e. student) is then watch virtual desktop master control personnel operation on the table in this virtual desktop of access.Any change of the virtual desktop of tabletop master personnel all needs synchronously to be pushed to each and participates in the virtual desktop terminal of desktop.
Use, if adopt current unicast mode to allow multiple user access same virtual desktop because same virtual desktop needs to share to into hundred users simultaneously.Due to each recipient it is desirable that same data, if there is N number of recipient, so service end just needs this number to send to recipient respectively according to making N number of message, and like this when recipient increases, the message that service end sends needs to increase too.Service end bears such traffic an extreme value certainly, when recipient to a certain extent time, be not merely the problem that network traffics increase, machine of only delaying that server faces.This must cause very large bandwidth sum performance requirement pressure to the service end of virtual desktop.
For large the caused problem of service end pressure that the increase along with client during shared virtual desktop in correlation technique causes, at present effective solution is not yet proposed.
Summary of the invention
The invention provides method, device and virtual desktop system that a kind of virtual desktop reappears, pushes, at least to solve the problem.
According to an aspect of the present invention, provide a kind of virtual desktop replay method, comprising: at least one from control equipment by the virtual desktop information of multicast service reception from main control equipment; According to described virtual desktop information, reappear second virtual desktop identical with the first virtual desktop of described main control equipment.
Preferably, described virtual desktop information comprises: the change information of described first virtual desktop.
Preferably, described virtual desktop information comprise following one of at least: the interface change information of described first virtual desktop, the audio frequency change information of described first virtual desktop, or the mouse change information of described first virtual desktop.
Preferably, reappear described second virtual desktop identical with described first virtual desktop to comprise: by described virtual desktop information pushing to the passage corresponding with described virtual desktop information, wherein, the passage of described correspondence comprise following one of at least: the display channel corresponding with described interface change information, the voice-grade channel corresponding with described audio frequency change information, or the mouse passage corresponding with described mouse change information; By the passage of described correspondence, reappear described second virtual desktop identical with described first virtual desktop.
Preferably, described method also comprises: described in being kept by heartbeat keep-alive flow process, at least one is from the connection between control equipment and described main control equipment, wherein, described heartbeat keep-alive flow process comprises: described at least one send the first heartbeat packet from control equipment to described main control equipment, and wrapping for first time according to described first heartbeat packet of described main control equipment response, keep described connection; And/or described main control equipment to described at least one send the second heartbeat packet from control equipment, and according to described at least one from second time of the second heartbeat packet bag described in control device responds, keep described connection.
According to another aspect of the present invention, additionally provide a kind of virtual desktop method for pushing, comprise: main control equipment pushes virtual desktop information at least one from control equipment by multicast services, wherein, described virtual desktop information be used for described at least one reappear second virtual desktop identical with the first virtual desktop of described main control equipment from control equipment.
Preferably, by multicast services to described before at least one pushes described virtual desktop information from control equipment, described method also comprises: obtain described virtual desktop information, wherein, described virtual desktop information comprise following one of at least: the interface change information of described first virtual desktop, the audio frequency change information of described first virtual desktop, or the mouse change information of described first virtual desktop.
According to another aspect of the present invention, additionally provide a kind of virtual desktop reproducer, be arranged at least one from control equipment, comprise: receiver module, for by the virtual desktop information of multicast service reception from main control equipment; Rendering module, for according to described virtual desktop information, reappears second virtual desktop identical with the first virtual desktop of described main control equipment.
According to another aspect of the present invention, additionally provide a kind of virtual desktop pusher, be arranged in main control equipment, comprise: pushing module, for pushing virtual desktop information at least one from control equipment by multicast services, wherein, described virtual desktop information be used for described at least one reappear second virtual desktop identical with the first virtual desktop of described main control equipment from control equipment.
According to another aspect of the present invention, additionally provide a kind of virtual desktop system, comprise main control equipment with at least one from control equipment, wherein, described main control equipment comprises above-mentioned virtual desktop pusher, described at least one comprise above-mentioned virtual desktop reproducer from control equipment.
By the present invention, adopt at least one from control equipment by the virtual desktop information of multicast service reception from main control equipment; According to this virtual desktop information, reappear the mode of second virtual desktop identical with the first virtual desktop of this main control equipment, solve in correlation technique when sharing virtual desktop along with large the caused problem of service end pressure that the increase of client causes, reduce the pressure of service end, decrease the demand of virtual desktop system to bandwidth.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of the virtual desktop replay method according to the embodiment of the present invention;
Fig. 2 is the preferred flow schematic diagram of the virtual desktop method for pushing according to the embodiment of the present invention;
Fig. 3 is the structured flowchart of the virtual desktop reproducer according to the embodiment of the present invention;
Fig. 4 is the preferred structure block diagram of the virtual desktop pusher according to the embodiment of the present invention;
Fig. 5 is the structured flowchart of the virtual desktop system according to the embodiment of the present invention;
Fig. 6 is the structural representation of virtual desktop multicast supplying system according to the preferred embodiment of the invention;
Fig. 7 is the structural representation of virtual desktop multicast services end according to the preferred embodiment of the invention;
Fig. 8 is the structural representation of virtual desktop multicast client according to the preferred embodiment of the invention;
Fig. 9 is that virtual desktop multicast pushes the link setup schematic flow sheet of client and service end according to the preferred embodiment of the invention;
Figure 10 is the control information schematic flow sheet of virtual desktop multicast supplying system according to the preferred embodiment of the invention;
Figure 11 is the heartbeat keep-alive schematic flow sheet of virtual desktop multicast supplying system according to the preferred embodiment of the invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Can perform in the computer system of such as one group of computer executable instructions in the step shown in the process flow diagram of accompanying drawing, and, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Present embodiments provide a kind of virtual desktop replay method, Fig. 1 is the schematic flow sheet of the virtual desktop replay method according to the embodiment of the present invention, and as shown in Figure 1, this flow process comprises the steps:
Step S102, at least one from control equipment by the virtual desktop information of multicast service reception from main control equipment;
Step S104, according to this virtual desktop information, reappears second virtual desktop identical with the first virtual desktop of main control equipment.
Pass through above-mentioned steps, adopt multicast services from main control equipment to one or more from control device multicast virtual desktop information, adopt mode of unicast respectively to each mode from control equipment clean culture virtual desktop information relative to main control equipment in correlation technique, reduce the pressure of service end, decrease the demand of virtual desktop system to bandwidth.Large the caused problem of service end pressure caused along with the increase of client when solving in correlation technique share virtual desktop by above-mentioned steps.
Preferably, virtual desktop information comprises: the change information of the first virtual desktop.By from main control equipment to the mode of change information pushing the first virtual desktop from control equipment, further reduce the size of virtual desktop information, thus further save the pressure of bandwidth demand and service end.
Preferably, virtual desktop information comprise following one of at least: the interface change information of the first virtual desktop, the audio frequency change information of the first virtual desktop, or the mouse change information of the first virtual desktop, wherein, mouse change information comprises change in location information and the mouse state change information of mouse, such as, mouse is changed to hand-type etc. from pointer shape.By which, thus can support that the second virtual desktop reappears display interface, sound signal and mouse action on the first virtual desktop.
Preferably, above-mentioned steps S104 can comprise: by virtual desktop information pushing to the passage corresponding with virtual desktop information, wherein, corresponding passage comprise following one of at least: the display channel corresponding with interface change information, the voice-grade channel corresponding with audio frequency change information, or the mouse passage corresponding with mouse change information; By the passage of correspondence, reappear second virtual desktop identical with the first virtual desktop.Wherein, the screening to virtual desktop information and/or parsing can also be comprised, such as, from virtual desktop information, filter out the information that will be pushed to different passage, and be pushed to respectively in corresponding passage and process; When the command format that the passage that virtual desktop information is not correspondence can directly process, can also be resolved the virtual desktop information be pushed in different passage respectively by a resolver.
Preferably, above-mentioned virtual desktop replay method also comprises: keep at least one from the connection between control equipment and main control equipment by heartbeat keep-alive flow process, wherein, heartbeat keep-alive flow process comprises: at least one sends the first heartbeat packet from control equipment to main control equipment, and first time bag of the first heartbeat packet is responded according to main control equipment, keep connecting; And/or main control equipment sends the second heartbeat packet at least one from control equipment, and according at least one wrapping for second time from control device responds second heartbeat packet, keep connecting.Wherein, the time interval sending heartbeat packet can be arranged.By the way, can removing long-term immobilization the multicast pond of multicast services from control equipment, thus avoid the wasting of resources caused from control equipment of inactivation and unnecessary power consumption.
The present embodiment additionally provides a kind of virtual desktop method for pushing, and the method comprises:
Step S204, main control equipment pushes virtual desktop information at least one from control equipment by multicast services, and wherein, virtual desktop information is used for this, and at least one reappears second virtual desktop identical with the first virtual desktop of main control equipment from control equipment.
Fig. 2 is the preferred flow schematic diagram of the virtual desktop method for pushing according to the embodiment of the present invention, and as shown in Figure 2, preferably, before pushing virtual desktop information by multicast services at least one from control equipment, this virtual desktop method for pushing also comprises:
Step S202, obtains virtual desktop information, wherein, virtual desktop information comprise following one of at least: the interface change information of the first virtual desktop, the audio frequency change information of the first virtual desktop, or the mouse change information of the first virtual desktop.
The present embodiment additionally provides a kind of virtual desktop reproducer, is arranged at least one from control equipment.This virtual desktop reproducer is used for realizing above-mentioned virtual desktop replay method, and the implementation procedure that the signaling sending device described in device embodiment is concrete carried out detailed description in embodiment of the method, did not repeat them here.
Fig. 3 is the structured flowchart of the virtual desktop reproducer according to the embodiment of the present invention, and as shown in Figure 3, this device comprises receiver module 32 and rendering module 34, and wherein, receiver module 32, for by the virtual desktop information of multicast service reception from main control equipment; Rendering module 34 is coupled to receiver module 32, for according to this virtual desktop information, reappears second virtual desktop identical with the first virtual desktop of main control equipment.
Module involved in embodiments of the invention, unit can be realized by the mode of software, also can be realized by the mode of hardware.Described module in the present embodiment, unit also can be arranged within a processor, such as, can be described as: a kind of processor comprises receiver module 32 and rendering module 34.Wherein, the title of these modules does not form the restriction to this module itself under certain conditions, and such as, receiver module can also be described to " for by the module of multicast service reception from the virtual desktop information of main control equipment ".
Preferably, virtual desktop information comprises: the change information of the first virtual desktop, such as: virtual desktop information comprise following one of at least: the interface change information of the first virtual desktop, the audio frequency change information of the first virtual desktop, or the mouse change information of the first virtual desktop.
Preferably, rendering module 34, for by virtual desktop information pushing to the passage corresponding with virtual desktop information, wherein, corresponding passage comprise following one of at least: the display channel corresponding with interface change information, the voice-grade channel corresponding with audio frequency change information, or the mouse passage corresponding with mouse change information; By the passage of correspondence, reappear second virtual desktop identical with the first virtual desktop.
Preferably, this device also comprises: keep-alive module, for keeping at least one from the connection between control equipment and main control equipment by heartbeat keep-alive flow process, wherein, heartbeat keep-alive flow process comprises: at least one sends the first heartbeat packet from control equipment to main control equipment, and first time bag of the first heartbeat packet is responded according to main control equipment, keep connecting; And/or main control equipment sends the second heartbeat packet at least one from control equipment, and according at least one wrapping for second time from control device responds second heartbeat packet, keep connecting.
The present embodiment additionally provides a kind of virtual desktop pusher, be arranged in main control equipment, this virtual desktop pusher is used for realizing above-mentioned virtual desktop method for pushing, the implementation procedure that the signaling sending device described in device embodiment is concrete carried out detailed description in embodiment of the method, did not repeat them here.
This virtual desktop pusher comprises: pushing module, for pushing virtual desktop information at least one from control equipment by multicast services, wherein, virtual desktop information be used for this at least one reappear second virtual desktop identical with the first virtual desktop of main control equipment from control equipment.
Module involved in embodiments of the invention, unit can be realized by the mode of software, also can be realized by the mode of hardware.Described module in the present embodiment, unit also can be arranged within a processor, such as, can be described as: a kind of processor comprises pushing module.Wherein, the title of these modules does not form the restriction to this module itself under certain conditions, and such as, pushing module can also be described to " for being pushed the module of virtual desktop information at least one from control equipment by multicast services ".
Fig. 4 is the preferred structure block diagram of the virtual desktop pusher according to the embodiment of the present invention, as shown in Figure 4, preferably, this device also comprises: acquisition module 44 is coupled to pushing module 42, for obtaining virtual desktop information, wherein, virtual desktop information comprise following one of at least: the interface change information of the first virtual desktop, the audio frequency change information of the first virtual desktop, or the mouse change information of the first virtual desktop.
The present embodiment additionally provides a kind of virtual desktop system, Fig. 5 is the structured flowchart of the virtual desktop system according to the embodiment of the present invention, as shown in Figure 5, this virtual desktop system comprises: main control equipment 52 and at least one is from control equipment 54, wherein, main control equipment 52 comprises above-mentioned virtual desktop pusher, and at least one comprises above-mentioned virtual desktop reproducer from control equipment 54.
Be described below in conjunction with preferred embodiment and illustrate.
This preferred embodiment provides a kind of the cloud terminal virtual desktop multicast supplying system and the method that are applied to classroom instruction, and this system and method relates to cloud computing technology.
In the preferred embodiment, by adopting multicasting technology in cloud terminal virtual desktop system, what server end (being equivalent to above-mentioned main control equipment) needs did sends a message to special multicast group (group) exactly, when multiple recipients (be equivalent to above-mentioned from control equipment) of network are interested to this message time, they freely can copy from this group and obtain this message.Under such circumstances, no matter recipient increases how many people, and server needs the just transmission message done, and the also just a message that network transmits, thus the demand to the network bandwidth can be reduced, and reduce the pressure of server end.
In the preferred embodiment, the basis based on the virtual desktop framework of cloud computing increases a set of desktop multi-cast system based on C/S model.Thus a kind of the cloud terminal virtual desktop multicast supplying system and the method that are applied to classroom instruction are proposed, multimedia teaching facility, advanced computer-aided instruction equipment and the cloud computing technology that recently occurs are carried out degree of depth combination, realize the networked teaching of real meaning, and the various teaching equipment of intelligent management, can improve the quality of teaching and efficiency.
In order to achieve the above object, this preferred embodiment is by the following technical solutions:
This preferred embodiment provides a kind of cloud terminal virtual desktop multicast supplying system being applied to classroom instruction, comprises virtual desktop multicast services end (being equivalent to above-mentioned main control equipment) and virtual desktop multicast client (being equivalent to above-mentioned from control equipment).This system is embedded in the virtual desktop system based on cloud computing, and the basis of virtual desktop framework adds virtual desktop multicast services end module and virtual desktop multicast client module.
Above-mentioned virtual desktop multicast services end is embedded in the cloud server terminal of virtual desktop, comprises the multicast module of display channel, the multicast module of voice-grade channel, the multicast module of mouse passage and multicast control channel module.The multicast module of above-mentioned display channel is used for desktop current for virtual machine display data multicast to go out.The multicast module of above-mentioned voice-grade channel is used for voice data multicast current for virtual machine to go out.The multicast module of above-mentioned mouse passage is used for mouse data multicast current for virtual machine to go out.Above-mentioned multicast control channel module is for realizing the controlling functions to multicast client.
Above-mentioned virtual desktop multicast client, comprises network data receiver module, desktop pushes client protocol processing module, desktop pushes client channel command processing module.Above-mentioned network data receiver module is responsible for guarding on multicast socket with a thread in client receiving all multicast packets.Above-mentioned desktop pushes client protocol processing module and is responsible for carrying out rear judgement multicast for which passage to the multicast packet received, and is distributed to the passage processing module of specifying.Above-mentioned desktop pushes the order data that client channel command processing module has been responsible for being pushed to the display channel of client, voice-grade channel and mouse passage, and reappears the desktop display of service end by the display of terminal and sound device.
This preferred embodiment additionally provides a kind of cloud terminal virtual desktop multicast method for pushing being applied to classroom instruction, comprise the following steps: first create desktop pond in service end and activate, for desktop pond creates virtual machine, and set multicast address and the port of video, audio frequency and mouse for virtual machine, install the operating system of virtual machine and add storage.Following establishment user organizes and configure user group belongs to certain desktop pond as required, and needs according to user the strategy setting user's group; Add User for user's group and activate, before adding users, must at the AD(Active Directory of correspondence, being the assembly of Windows as territory management, being arranged on server end) in the information of adding users.Under our multicast application scene, we create a multicast group, and add in this multicast group by the user management of service end by user; Set the configuration information of user, by user A(and teacher) be set to the master control personnel (corresponding to main control equipment) of virtual desktop, all the other users (i.e. student) be set to virtual desktop from control personnel (corresponding to from control equipment).Virtual desktop master control personnel utilize the virtual desktop client be arranged in cloud terminal to be connected with virtual desktop serve end, and the operation completed alternately for desktop multicast by the virtual desktop of this terminal and multicast controls.Virtual desktop passes through virtual desktop multicast client connecting virtual machine cloud terminal again from control personnel.Now can change at the image seen from the multicast desktop client end of control personnel in virtual machine and mouse, and can listening to audio.Any change of the virtual desktop of tabletop master personnel all can synchronously be pushed to each participate in desktop from the virtual desktop terminal of control personnel.
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technique scheme:
Fig. 6 is the structural representation of virtual desktop multicast supplying system according to the preferred embodiment of the invention, the virtual desktop multicast supplying system of this preferred embodiment is embedded among a whole set of framework of virtual desktop, as shown in Figure 6, this system comprises: virtual desktop multicast services end 610, virtual desktop multicast client 620.The transmission of virtual desktop multicast services end 610 primary responsibility multicast packet the control realized multicast client.Virtual desktop multicast client 620 is arranged in cloud terminal, and primary responsibility receives and pushes the display data of coming from the virtual desktop of multicast and present at client operating system screen.
Fig. 7 is the structural representation of virtual desktop multicast services end according to the preferred embodiment of the invention, as shown in Figure 7, virtual desktop multicast services end 610 is the modules be embedded in cloud server terminal, and the module that virtual desktop multicast services end 610 comprises has the multicast module 611 of display channel, the multicast module 612 of voice-grade channel, the multicast module 613 of mouse passage and multicast control channel module 614.The multicast module 611 of display channel is for going out desktop current for virtual machine display data multicast.The multicast module 712 of voice-grade channel is for going out voice data multicast current for virtual machine.The multicast module 613 of mouse passage is for going out mouse data multicast current for virtual machine.Multicast control channel module 614 is for realizing the controlling functions to virtual desktop multicast client.
Fig. 8 is the structural representation of virtual desktop multicast client according to the preferred embodiment of the invention, as shown in Figure 8, the module that virtual desktop multicast client 620 has comprises network data receiver module 621, desktop pushes client protocol processing module 622, desktop pushes client channel command processing module 623.Network data receiver module 621 is responsible for guarding on multicast socket with a thread in client receiving all multicast packets.Desktop pushes client protocol processing module 622 and is responsible for carrying out rear judgement multicast for which passage to the multicast packet received, and is distributed to the passage processing module of specifying.Desktop propelling movement client channel command processing module 623 comprises three little modules, display channel command processing module 6231, mouse passage command processing module 6232, voice-grade channel command processing module 6233 respectively, be responsible for being pushed to the order data of the display channel of client, voice-grade channel and mouse passage, and reappear the desktop display of service end by the display of terminal and sound device.
Fig. 9 is that virtual desktop multicast pushes the link setup schematic flow sheet of client and service end according to the preferred embodiment of the invention, and as shown in Figure 9, the link setup flow process of multicast client and service end can comprise:
Step 1, multicast client sends link setup request to service end;
Step 2, cloud server terminal is according to the request received, and judging whether should link setup;
Step 3, cloud server terminal allows link setup, returns initialization information, and information comprises the multicast group address that video, mouse, the initialization information of audio frequency and multicast client needs add;
Step 4, the information that multicast client returns according to service end, initializes video, mouse and voice-grade channel, add corresponding multicast group simultaneously and start to accept data and process;
Step 5, this client adds in multicast pond by cloud server terminal; Multicast client and cloud server terminal set up control channel, timing keep-alive process information simultaneously.
Figure 10 is the control information schematic flow sheet of virtual desktop multicast supplying system according to the preferred embodiment of the invention, as shown in Figure 10, when cloud server terminal has message to need to notify client time, first searches for multicast pond, finds out corresponding client from multicast pond; Control message is sent to corresponding multicast client by cloud server terminal, and multicast client carries out processing and responding according to the control message received.
Figure 11 is the heartbeat keep-alive schematic flow sheet of virtual desktop multicast supplying system according to the preferred embodiment of the invention; as shown in figure 11, the heartbeat keep-alive flow process of virtual desktop multicast supplying system comprises two parts: the heartbeat keep-alive of multicast client and the heartbeat keep-alive of cloud server terminal.Multicast client timing arrives, and multicast client sends heartbeat packet to cloud server terminal, and cloud server terminal returns bag, after multicast client receives, heartbeat fail count is reset, if do not received, heartbeat fail count is added one, and after fail count exceeds setting value, multicast client initiatively exits.Cloud server terminal timing arrives, cloud server terminal group of notifications broadcasts control module, the multicast client of all registrations in multicast pond sends heartbeat packet, multicast client returns bag, after cloud server terminal receives, the heartbeat fail count of corresponding multicast client is reset, if do not received, heartbeat fail count for multicast client is added one, after fail count exceeds setting value, multicast client is shifted out from multicast pond.
Compared with prior art, the advantage of this preferred embodiment is: provide the virtual desktop multicast supplying system based on cloud terminal and method, realizes point-to-point configuration and connect between sender and each recipient.A sender transmits identical data to multiple recipients simultaneously, only need copy a identical data packet, improve data-transmission efficiency, decrease backbone network and occur congested possibility.From control personnel automatic reception multicast when simultaneously master control personnel start multicast, realize the automatic switchover of multicast client.Thus multimedia teaching facility, advanced computer-aided instruction equipment and the cloud computing technology that recently occurs are carried out degree of depth combination, achieve the networked teaching of real meaning, and the various teaching equipment of intelligent management, improve the quality of teaching and efficiency.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
More than above are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a virtual desktop replay method, is characterized in that comprising:
At least one from control equipment by the virtual desktop information of multicast service reception from main control equipment;
According to described virtual desktop information, reappear second virtual desktop identical with the first virtual desktop of described main control equipment.
2. method according to claim 1, is characterized in that, described virtual desktop information comprises: the change information of described first virtual desktop.
3. method according to claim 2, it is characterized in that, described virtual desktop information comprise following one of at least: the interface change information of described first virtual desktop, the audio frequency change information of described first virtual desktop, or the mouse change information of described first virtual desktop.
4. method according to claim 3, is characterized in that, reappears described second virtual desktop identical with described first virtual desktop and comprises:
By described virtual desktop information pushing to the passage corresponding with described virtual desktop information, wherein, the passage of described correspondence comprise following one of at least: the display channel corresponding with described interface change information, the voice-grade channel corresponding with described audio frequency change information, or the mouse passage corresponding with described mouse change information;
By the passage of described correspondence, reappear described second virtual desktop identical with described first virtual desktop.
5. method according to any one of claim 1 to 4, is characterized in that, described method also comprises: described in being kept by heartbeat keep-alive flow process, at least one is from the connection between control equipment and described main control equipment, and wherein, described heartbeat keep-alive flow process comprises:
Described at least one send the first heartbeat packet from control equipment to described main control equipment, and according to first time bag of described first heartbeat packet of described main control equipment response, keep described connection; And/or
Described main control equipment to described at least one send the second heartbeat packet from control equipment, and according to described at least one from second time of the second heartbeat packet bag described in control device responds, keep described connection.
6. a virtual desktop method for pushing, is characterized in that comprising:
Main control equipment pushes virtual desktop information at least one from control equipment by multicast services, wherein, described virtual desktop information be used for described at least one reappear second virtual desktop identical with the first virtual desktop of described main control equipment from control equipment.
7. method according to claim 6, it is characterized in that, by multicast services to described before at least one pushes described virtual desktop information from control equipment, described method also comprises: obtain described virtual desktop information, wherein, described virtual desktop information comprise following one of at least: the interface change information of described first virtual desktop, the audio frequency change information of described first virtual desktop, or the mouse change information of described first virtual desktop.
8. a virtual desktop reproducer, is arranged at least one from control equipment, it is characterized in that comprising:
Receiver module, for by the virtual desktop information of multicast service reception from main control equipment;
Rendering module, for according to described virtual desktop information, reappears second virtual desktop identical with the first virtual desktop of described main control equipment.
9. a virtual desktop pusher, is arranged in main control equipment, it is characterized in that comprising:
Pushing module, for pushing virtual desktop information at least one from control equipment by multicast services, wherein, described virtual desktop information be used for described at least one reappear second virtual desktop identical with the first virtual desktop of described main control equipment from control equipment.
10. a virtual desktop system, it is characterized in that comprising main control equipment with at least one from control equipment, wherein, described main control equipment comprises virtual desktop pusher as claimed in claim 9, described at least one comprise virtual desktop reproducer as claimed in claim 8 from control equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310496341.8A CN104580308A (en) | 2013-10-21 | 2013-10-21 | Virtual desktop reappearing and pushing method and device and virtual desktop system |
| PCT/CN2014/075739 WO2014180234A1 (en) | 2013-10-21 | 2014-04-18 | Virtual desktop reproducing and pushing method and device, and virtual desktop system |
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| CN201310496341.8A CN104580308A (en) | 2013-10-21 | 2013-10-21 | Virtual desktop reappearing and pushing method and device and virtual desktop system |
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| WO2014180234A1 (en) | 2014-11-13 |
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