KR20140103558A - Apparatus and method for virtualization-based multimedia services - Google Patents

Apparatus and method for virtualization-based multimedia services Download PDF

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Publication number
KR20140103558A
KR20140103558A KR1020130017081A KR20130017081A KR20140103558A KR 20140103558 A KR20140103558 A KR 20140103558A KR 1020130017081 A KR1020130017081 A KR 1020130017081A KR 20130017081 A KR20130017081 A KR 20130017081A KR 20140103558 A KR20140103558 A KR 20140103558A
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South Korea
Prior art keywords
multimedia
terminal
session
virtual machine
environment
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KR1020130017081A
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Korean (ko)
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정연준
윤장우
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한국전자통신연구원
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Publication of KR20140103558A publication Critical patent/KR20140103558A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/08—Protocols specially adapted for terminal emulation, e.g. Telnet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions

Abstract

A virtual machine is created for each terminal and a session having the same environment as that of a session in which multimedia is provided to the generated virtual machine is set up to provide multimedia Based multimedia providing apparatus and method, it is possible to continuously provide a variety of multimedia services that appear in various terminals.

Figure P1020130017081

Description

[0001] APPARATUS AND METHOD FOR VIRTUALIZATION-BASED MULTIMEDIA SERVICES [0002]

The present invention relates to an apparatus and a method for providing a virtualization-based multimedia for continuously providing heterogeneous multimedia between terminals.

With the development of information and communication technology, various multimedia can be provided through wired / wireless communication network.

In addition, due to the development of various information communication devices such as smart phones and PDAs, it becomes possible to easily access multimedia in various fields anytime and anywhere. In addition, multimedia access is facilitated by the spread of the N screen service which enables seamless use of multimedia in various information communication devices such as TV, PC, tablet, and smart phone.

Meanwhile, existing computing environments that depend on the independent hardware performance of each terminal according to the technological development of the computer network are classified into a cloud computing type which provides the corresponding service according to the request of the terminal utilizing all the computing resources on the network It became possible to access large-capacity multimedia.

In a cloud service, a thin client having only minimal hardware and depending on information processing in a server has a variety of hardware and software. Therefore, in creating a session for providing a conventional N screen service, There are technical problems.

In order to solve the above-described problems, the present invention provides a device and a method for continuously providing a multimedia by creating a virtual machine according to characteristics of various information communication devices, and setting a new session between the added machine and the terminal.

A virtualization server for continuously providing multimedia provided to a first terminal through a first session established in a virtual machine according to an aspect of the present invention to a second terminal includes: A session management unit for setting a second session having the same environment as the first session environment in a virtual machine created to provide multimedia to the second terminal, a virtual machine management unit for creating a virtual machine for supporting a multimedia execution environment independent of the first session environment, And a media manager that controls the second terminal to continuously provide multimedia to the second terminal through the second session in which the virtual machine having the second session is set.

In addition, the media management unit may determine multimedia to be provided to the second terminal according to a second session environment configured in the same manner as the first session environment, receive multimedia from the multimedia server storing the multimedia, and provide the multimedia to the second terminal have.

In addition, the media management unit may detect the multimedia playback point in time according to the second session environment, which is set in the same manner as the first session environment, adjust the multimedia playback point in correspondence with the detected playback point, And a synchronization module for adjusting the multimedia reproduction time point to be provided to the second terminal according to the collected reproduction information.

The virtual machine management unit may further include a resource collection module for releasing resources allocated to the virtual machine for providing multimedia to the terminal, and may further include a resource recovery module for detecting hardware or software environment information of the second terminal Information gathering modules may also be included.

A virtualization-based multimedia providing method according to an aspect of the present invention is a method for providing a multimedia to a second terminal by continuously providing multimedia provided to a first terminal through a first session set in a virtual machine to a second terminal, Generating a second virtual machine to support an independent execution environment by virtually allocating hardware resources to the second virtual machine; providing a second virtual machine to the second virtual machine to provide multimedia to the second terminal; Establishing a session, and providing multimedia to a second terminal through a second session established in the second virtual machine.

The step of providing to the second terminal may include the steps of determining multimedia to be provided to the second terminal according to a second session environment set to the same as the first session environment, Controlling the multimedia playback time to be provided to the second terminal according to the environment, and requesting multimedia to the multimedia server storing one or more multimedia.

The multimedia providing method may further include releasing hardware resources allocated to the first virtual machine.

The generating of the virtual machine may further include detecting the environment information of the second terminal by connecting to the second terminal, and the virtual machine may further include a step of providing multimedia according to the detected environment information of the second terminal Is set.

The generating of the second session may further include detecting network information to which the second terminal is connected, and may generate a session according to the detected network information.

According to the embodiment of the present invention, a virtual machine is created according to characteristics of various information communication devices including a thin client, and a new session is established between the created adding machine and the terminal, thereby providing continuous multimedia in various terminals .

In addition, it is possible to efficiently provide N screen service to a thin client terminal user even in a session environment using a virtualization transmission protocol such as RDP.

In addition, by providing a variety of multimedia using a virtual machine of a virtualization server, it is possible to efficiently provide an N screen service even in various high quality multimedia services that are introduced in various terminals.

FIG. 1 is a block diagram for explaining a virtualization-based multimedia providing system according to an embodiment of the present invention.
2 is a block diagram illustrating a virtualization server according to an embodiment of the present invention.
3 is a flowchart illustrating a method for providing virtualization-based multimedia according to an embodiment of the present invention.
4 is a flowchart illustrating an operation of a virtualization server according to a method of providing multimedia using a virtualization server according to an embodiment of the present invention.

The foregoing and further aspects of the invention will become apparent through the following examples. The configurations of the selectively described embodiments or selectively described embodiments in this specification are shown as a single integrated configuration in the drawings, but may be freely combined with one another if they are not obviously technically contradictory to the ordinary artisan unless otherwise stated It should be understood that there is.

FIG. 1 is a block diagram for explaining a virtualization-based multimedia providing system according to an embodiment of the present invention.

Referring to FIG. 1, a virtualization-based multimedia providing system 10 includes a terminal 100, a virtualization server 200, a multimedia server 300, and a communication network 400.

The terminal 100 receives and outputs multimedia from the virtual machine 210 of the virtualization server 200. Herein, the terminal 100 may be connected to a wired / wireless communication network such as a personal computer, a set-top box, a laptop computer, a mobile phone, a smart phone, a PDA (personal digital assistant), a portable multimedia player (PMP) (Eg, an output device) such as an IPTV set-top box, a digital TV, and an outdoor billboard, as well as a device capable of receiving and outputting multimedia data from a server connected to the network, (Hereinafter, referred to as a thin client) that receives and outputs multimedia data in a form that can be directly output without using a multimedia server.

In order to facilitate understanding of the description, the first terminal 100a and the second terminal 100b will be described in more detail by distinguishing the terminal 100 from the first terminal 100a and the second terminal 100b according to an embodiment of the present invention. The second terminal 100b receives and outputs the multimedia data through the first session 410 connected to the first virtual machine 210a of the terminal 100. The second terminal 100b receives the multimedia output of the terminal 100, The new second session 420 is connected to the second virtual machine 210b of the virtualization server 200, and the multimedia is received and output without interruption.

The virtualization server 200 based on the cloud service continuously provides the multimedia provided to the first terminal 100a to the second terminal 100b. More specifically, the virtual machine 210 having the execution environment allocated by virtually allocating hardware is created to efficiently provide multimedia for each terminal 100, and the second session 420 is provided to the second virtual machine 210b And copies the first session 410 information to the generated second session 420 to continuously provide multimedia.

The multimedia server 300 stores and manages one or more multimedia data and provides specific multimedia to the virtualization server at the request of the virtualization server 200. At this time, the data storage format of the multimedia server 300 may vary depending on the data structure for storing the multimedia data.

The communication network 400 transfers data between the terminal 100 and the virtualization server 200. In this case, the communication network 400 may include a network such as a Global System for Mobile Communications (GSM) network, a Code Division Multiple Access (CDMA) network, a Universal Mobile Telephone System (UMTS) network, a Wideband Code Division Multiple Access (High Speed Download Packet Access) technology, HSDPA (High Speed Download Packet Access), WiBro (Wireless Broadband) network, WiMax (Worldwide Interoperability for Microwave Access) network and Internet protocol. And an IP network that is an i-bimetal network that integrates different networks based on IP, as well as a wired network such as an IP network. In addition, the communication network 400 includes a network capable of exchanging data between a server and a client in addition to the above example, and is a virtual network 400 such as a remote desktop protocol (RDP). And a communication network 400 that is introduced into the development of information and communication technologies in the future.

In the meantime, although the embodiment of the present invention is described as providing multimedia to one second terminal, it should be understood that a second terminal capable of continuously receiving multimedia can be one or more according to the embodiment.

2 is a block diagram illustrating a virtualization server according to an embodiment of the present invention.

Referring to FIG. 2, the virtualization server includes a virtualization machine 210, a virtualization machine management unit 220, a session management unit 230, a media management unit 240, and a storage unit 250.

The virtual machine 210 refers to an information processing apparatus logically created by software in an existing information processing apparatus. In the embodiment of the present invention, hardware resources of the virtualization server 200, which is physically one, Refers to a logical server generated to support an independent execution environment for providing multimedia to each terminal 100.

More specifically, the virtual machine 210 can process and provide multimedia in the form that the terminal 100 can receive and output. For example, if the hardware of the terminal 100 is difficult to decode multimedia, multimedia data that has been decoded may be provided, or the multimedia that has been encoded by the terminal 100 may be re- To the terminal 100. In addition, the virtual machine 210 may process the multimedia data according to an operating system (OS) or an application program of the terminal 100 and provide the multimedia data to the terminal 100.

Although only the first and second virtual machines 210a and 210b are described in the embodiment of the present invention, it should be understood that the virtualization server 300 can create and manage more virtual machines 210 .

The virtual machine management unit 220 creates a virtual machine 210 in which an independent execution environment for providing the multimedia is provided to the terminal 100 using virtualized hardware resources. At this time, a method and an algorithm for creating a virtual machine may be based on the prior art, and may include a new method and algorithm developed by the development of the later technology.

In addition, the virtual machine management unit 220 may include an information collection module 221 for collecting information of the terminal 100 necessary for creating a virtual machine. Here, the information collection module 221 may be connected to the terminal 100 to receive information on the environment of the terminal 100 from the terminal 100. At this time, the environment of the terminal 100 includes information on hardware such as a central processing unit (CPU), a memory (RAM), and an output device of the terminal 100, and software such as an operating system (OS) Concept.

The virtual machine management unit 220 may include a resource collection module 223 for collecting resources allocated to the first virtual machine 210a for providing multimedia to the first terminal 100. [ Here, if the multimedia providing request is a request for movement of multimedia from the first terminal 100a to the second terminal 100b, the resource collection module 233 may transmit the multimedia to the first terminal 100a through a first virtual machine (210a) to recover the hardware resources allocated to the virtualization server (200).

The session management unit 230 generates a second session 420 between the second virtual machine 210b and the second terminal 100b generated by the virtual machine management unit 220 and generates a second session between the second virtual machine 210b and the second terminal 100b, And sets the environment of the second session 420. Herein, the session means a kind of data communication path between the terminal 100 and the virtual machine 210, and the session can be changed according to the form of the communication network 400 between the terminal 100 and the virtualization server 200 I must understand. The session environment includes information such as an object ID of a multimedia to be transmitted, a time at which a session is created, a connection time at a session, and the like. The multimedia provided to the first terminal 100a is continuously As shown in Fig.

The media management unit 240 continuously provides the multimedia to the second terminal 100b through the second session 210b in which the environment is set. More specifically, the media management unit 240 may specify the multimedia to be transmitted to the second terminal 210b from the copied second session 210b environment information and provide the multimedia to the second terminal 100b. For example, multimedia to be provided to the second terminal 100b may be specified using the multimedia ID of the environment of the second session 210b.

In addition, the media management unit 240 may include a synchronization module 241 for controlling the multimedia playback time for continuous multimedia playback to the second terminal 100b. Here, the synchronization module 241 may detect the playback point of multimedia provided through the second session 210b environment, and may provide multimedia from a portion corresponding to the detected playback point. For example, it is possible to detect the multimedia playback time provided to the first terminal 100b by using the difference between the time when the multimedia presentation is requested and the time when the session is maintained, and to control the multimedia playback from the portion corresponding to the detected playback time can do.

The storage unit 250 stores various information necessary for the virtualization server 200 to provide multimedia to the terminal 100. [ For example, in the terminal 100, information for creating a virtual machine 210 according to the environment, information for connecting a session according to the form of various communication networks 400, and data necessary for operating the virtualization server 200 Can be stored. Also, it should be understood that the embodiment of the present invention describes that multimedia to be provided to the terminal 100 is stored in a separate server, but may be stored in a storage unit of the virtualization server.

3 is a flowchart illustrating a method for providing virtualization-based multimedia according to an embodiment of the present invention.

Referring to FIG. 3, in step S101, the virtualization server 200 receives a multimedia move or copy request from the first terminal 100a or the second terminal 100b to the first terminal 100a.

In step S103, the virtualization server 200 requesting multimedia movement or copying creates a second terminal 200b to be newly provided with multimedia and a second virtual machine 210b for establishing a session. In this case, the second virtual machine 210b provides multimedia in accordance with the environment of the second terminal 100b, and the second virtual machine 210b may provide the multimedia to the second terminal 200b, A logical server that allocates hardware resources.

In step S105, the virtualization server 200 creates a second session 420 for communication with the second terminal 100b in the second virtual machine 210b. At this time, the second session 420 may vary depending on the type of the communication network 400 in which the second terminal 100b and the virtualization server 200 are connected.

In step S107, the virtualization server 200 copies the environment of the first session 410 to the second session 420. [ Here, the environment of the first session 410 includes information such as an object ID of multimedia to be transmitted, a time at which the session is created, a connection time at the session, and the like. The multimedia provided to the first terminal 100a may be referred to as a second terminal And 100b, respectively. It should be understood that the creation of the second session 420 and the copying of the environment of the first session 410 can be performed at the same time although the steps S105 and S107 have been described for convenience of explanation.

In step S109, when the multimedia provision request of the second terminal 100b is a multimedia movement request, the virtualization server 200 branches to step S111 and transmits the first session 100 with the first terminal 100a and the first session 410, The virtual machine 210 is released.

In step S113, the virtualization server 200 provides the multimedia to the second terminal 100b through the second session 420 set in the second virtual machine 210b. At this time, the second terminal 100b can encode or decode the multimedia data in a form that can be output by the second terminal 100b.

4 is a flowchart illustrating an operation of a virtualization server according to a method of providing multimedia using a virtualization server according to an embodiment of the present invention.

Referring to FIG. 4, in step S201, the virtualization server 200 receives a multimedia movement request to the multimedia second terminal 100b provided in the first terminal 100a.

In step S203, the virtualization server 200 accesses the second terminal 100b. In step S205, the virtualization server 200 requests the environment information of the second terminal 100b. In step S207, It is possible to provide software information to the virtualization server 200.

In step S209, the virtualization server 200 creates a second virtual machine 210b in which an independent execution environment for providing multimedia to the second terminal 100b is implemented. At this time, the virtualization server 200 may generate a second virtual machine 210b in which an independent execution environment is implemented according to the environment information of the second terminal 100b received in step S207.

Thereafter, in step S211, the virtualization server 200 creates a second session 420 in the second virtual machine 210b. At this time, the virtualization server 200 detects information about the communication network 400 connectable to the second terminal 100b to generate the second session 420, and transmits the second session 420 according to the detected information Can be generated.

In step S213, the virtualization server 200 detects the first session 410 environment from the first virtual machine 210a and determines the environment of the second session 420 according to the detected first session 410 environment Setting. Here, the session environment includes information such as an object ID of multimedia to be transmitted, a time at which the session is created, a connection time at the session, and the like. The multimedia provided to the first terminal 100a is continuously transmitted from the second terminal 100b And has information for output.

In step S215, the virtualization server 200 may synchronize the multimedia according to the second session environment 420. [ For example, the playback time of the multimedia can be detected using the difference between the session connection time information and the session movement request time from the second session environment 420.

In step S217, the virtualization server 200 may request the multimedia server 300 to provide the multimedia belonging to the multimedia object ID detected in the second session 420. Here, the virtualization server 200 may request only the reception of data after the playback time of the multimedia detected in step S215.

In step S219, the virtualization server 200 receives the multimedia received from the multimedia server 300 and the second virtual machine 210b processes the multimedia received according to the environment of the second terminal 100b . For example, the second virtual machine 210b may perform encoding or decoding to output multimedia.

In step S223, the virtualization server 200 provides the multimedia to the second terminal 100b through the second session 420. In step S225, the second terminal 100b receiving the multimedia outputs the multimedia. In this case, if the second terminal 100b is a thin client, the second terminal 100b may immediately output multimedia without any additional information processing.

On the other hand, in step S225, the virtualization server 200 can release the first virtual machine 210b to recover resources. However, if the multimedia copy is requested in step S201, the step S225 may be omitted.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

10: Multimedia system based on virtualization
100: terminal 200: virtualization server
210: virtual machine 220: virtual machine manager
230: Session management unit 240: Media management unit
250: storage unit 300: multimedia server
400: communication network

Claims (18)

A virtualization server for continuously providing multimedia provided to a first terminal through a first session set in a virtual machine to a second terminal,
A virtual machine management unit for creating a virtual machine for supporting an independent multimedia execution environment in the first terminal or the second terminal by virtually allocating hardware;
A session management unit for setting a second session having the same environment as the first session environment in a virtual machine created to provide multimedia to the second terminal;
A media management unit for controlling the virtual machine in which the second session is set to continuously provide the multimedia to the second terminal through the established second session;
The virtualization server comprising: The method according to claim 1,
Wherein the media management unit comprises:
And determines the multimedia to be provided to the second terminal according to a second session environment set the same as the first session environment. The method according to claim 1,
Wherein the media management unit comprises:
Further comprising a synchronization module for detecting a playback point of time of the multimedia according to a second session environment set in the same manner as the first session environment and adjusting a multimedia playback point corresponding to the detected playback point, . The method according to claim 1,
The virtual machine management unit,
Further comprising a resource collection module for releasing resources allocated to a virtual machine for providing multimedia to the terminal. The method according to claim 1,
Wherein the media management unit comprises:
Wherein the multimedia server receives the multimedia data from the multimedia server storing one or more multimedia data and provides the multimedia data to the second terminal. The method according to claim 1,
Wherein the media management unit comprises:
Further comprising a synchronization module for collecting reproduction information of the multimedia provided to the first terminal and adjusting a multimedia reproduction time to be provided to the second terminal according to the collected reproduction information. The method according to claim 1,
The virtual machine management unit,
Further comprising an information collection module for detecting hardware or software environment information of the second terminal in creating the virtual machine. The method of claim 7,
The virtual machine management unit,
And generates a second virtual machine according to the environment information collected by the information collection module. The method according to claim 1,
The session environment includes:
An object ID of the multimedia, a time at which the session was created, and a connection time at the session. The method according to claim 1,
The virtual machine includes:
Wherein the multimedia server decodes or encodes the multimedia data in a form that can be received and output by the second terminal. A virtualization server for continuously providing multimedia provided to a first terminal through a first session set in a virtual machine to a second terminal,
Creating a second virtual machine for supporting the independent execution environment by virtually allocating hardware resources to the second terminal in order to provide the multimedia;
Setting a second session established in the same environment as the first session environment to a second virtual machine created to provide multimedia to the second terminal;
Providing the multimedia to the second terminal through a second session established in the second virtual machine;
Based on the virtualization information. 12. The method of claim 11,
The method of claim 1,
Determining the multimedia to be provided to the second terminal according to a second session environment configured the same as the first session environment;
The method of claim 1, further comprising: 12. The method of claim 11,
The method of claim 1,
Adjusting the multimedia playback time to be provided to the second terminal according to a second session environment set the same as the first session environment;
The method of claim 1, further comprising: 12. The method of claim 11,
The method of claim 1,
Requesting the multimedia to a multimedia server storing one or more multimedia;
Receiving the multimedia from the multimedia server;
The method of claim 1, further comprising: 12. The method of claim 11,
Receiving the multimedia presentation request from the first terminal or the second terminal;
The method of claim 1, further comprising: 12. The method of claim 11,
Releasing hardware resources allocated to the first virtual machine;
The method of claim 1, further comprising: 12. The method of claim 11,
Wherein the step of creating the virtual machine comprises:
Detecting environmental information of the second terminal by accessing the second terminal;
Further comprising:
The virtual machine includes:
And the multimedia information is set to provide multimedia according to the environment information of the detected second terminal. 12. The method of claim 11,
Wherein the generating the second session comprises:
Detecting network information to which the second terminal is connected;
Further comprising:
And generating a session according to the detected communication network information.
KR1020130017081A 2013-02-18 2013-02-18 Apparatus and method for virtualization-based multimedia services KR20140103558A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101711409B1 (en) * 2015-09-14 2017-03-03 주식회사 새올정보기술 System and method for application virtualization based on multi operating system environment
KR20200105177A (en) * 2019-02-28 2020-09-07 에스케이브로드밴드주식회사 Virtual desktop system and iptv service using thin-client and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101711409B1 (en) * 2015-09-14 2017-03-03 주식회사 새올정보기술 System and method for application virtualization based on multi operating system environment
KR20200105177A (en) * 2019-02-28 2020-09-07 에스케이브로드밴드주식회사 Virtual desktop system and iptv service using thin-client and method thereof

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