KR100933938B1 - Streaming method using grid computing and recording medium recording the same - Google Patents

Abstract

The present invention relates to a streaming method using grid computing capable of providing a high capacity / high definition image file and providing a streaming service to a PC, and a recording medium recording the same. A serving peer receives a streaming service of a multimedia file from a request peer. Requesting peer information by a plurality of general peers to respond to the request; selecting, by the serving peer, a general peer to transmit a packet using network speed information; and a plurality of general peers from which the serving peer is selected Distributing the multimedia file into data packets, converting the distributed data packet into a serviceable file format using the idle system resources thereof, and transmitting the serving data to the serving peer, and the serving peer is received from each normal peer. Serviceable by combining converted data packets Generating a configuration file will be provided a structure comprising a streaming service to the requesting peer.

By using the streaming method using the grid computing as described above and the recording medium recording the same, the content copyright individual and the content owner to solve the process that must be solved for the storage, management, copyright existence and legal judgment of the content in the service provider to accommodate the content By managing the server directly, you can solve many problems by shortening the process.

P2P, Grid Computing, Streaming, VOD, Encoding, Decoding

Description

Streaming Method Using Grid Computing and Computer Readable Recording Medium Thereof}

The present invention relates to a streaming method using grid computing and a recording medium recording the same, and in particular, to provide a video on demand (VOD) server environment on a PC to share and stream high-capacity / high definition video files. The present invention relates to a streaming method using grid computing and a recording medium recording the same.

The rapid evolution of high-speed Internet environments and high-performance PCs has increased the demands and expectations of Internet users in proportion to speed and performance. In addition, the usage pattern of the Internet user is also rapidly changing from the initial text and image information to the multimedia video. In addition, as the prevalence of camcorders increases, the social foundation of UCC (User Created Content) is established, the popularization of IPTV (Internet Protocol Television), and the service of MMS (Multimedia Messaging System) for mobile communication are progressed. Types are diversified, and users' desire to manage data is increasing.

Providing UCC in UCC portals and large portals requires the purchase and expansion of hardware and software in accordance with the opening of services, and the direct and indirect costs continue to increase in proportion to the expansion of video data due to the input of development and maintenance personnel. As such, there is an urgent need for a solution to solve this problem. In addition, UCC is currently focused on academic and social focus, and the voices of limelight and jealousy are gradually focused. At this time, UCC portals are diverse and UCC contents are absent. In addition, more than 90% are at risk of copyright infringement, with only a handful of content being creative. If content providers (CPs) can service their own broadcasts through VOD solutions and benefit from clear copyright recognition and incentives, not only will the content and quality of content be improved, The added value will be increased and the profit will be returned to the content provider, which will contribute to the spread and dissemination of domestic cultural contents, and will lead to the export of UCC cultural contents.

As such, an example of a video streaming technique is disclosed in Document 1 below.

The technique disclosed in Document 1 below relates to receiver-driven P2P media streaming in a peer-to-peer network, in which a client receives a client request queue from a plurality of serving peers. Sending a client request of a packet to the serving peer, adding a data packet request to the corresponding request queue when the data packet request is sent from the client to the serving peer, the corresponding data packet being received by the client from the serving peer. Removing the packet request from the corresponding request queue, providing the received data packet to a general staging queue held by the client, and assembling the data packet in the general staging queue into a corresponding multimedia data packet. It is described as consisting of. That is, the technique disclosed in Document 1 describes a receiver-driven P2P media streaming in a P2P network that can stream media from multiple peers to the client under the control and real-time coordination of the client without the need for providing P2P cooperation. .

In addition, another example of a video streaming technique is disclosed in Document 2 below.

The technique disclosed in Document 2 below relates to a system and method for providing client-driven streaming of multimedia packets in a P2P network, comprising: separating an encoded media file into a media header and a media body, and serving peer Caching packets in the media header and media body at all packets are cached at the serving peer, retrieving the serving peer list using the client, retrieving an availability vector from the serving peer on the list using the client, Retrieving a packet constituting a media header from a peer cluster based on the availability vector retrieved using the client, and calculating a data identification for each packet of the media body from the media header using the client Step, computer data ID Requesting transmission of specific packets of the media body from a particular serving peer.

Another example of a video streaming technique is disclosed in Document 3 below.

The technology disclosed in Document 3 below relates to a method of providing a P2P web service, a remote storage service, and a remote control service using a plurality of server / client structures in which a personal computer is operated as a service server. In the first step of operating the PC as a server by transmitting the service operation authentication information of the PC to the X-broker server, the management web server receives the service use authentication request from the client who wants to access the PC operating as the server, and then uses the service use authentication. In the second step of performing the X-broker server, the third step of creating a connection between the authenticated client and the PC after receiving and processing a request for access to a specific PC server from the service-authenticated client, It is composed of the 4th step to perform web service, remote storage service and PC remote control service. It is.

Another example of a video streaming technique is disclosed in Document 4 below.

The technique disclosed in Document 4 below relates to a method and apparatus for providing a P2P-based streaming service, wherein the receiving peer requests content transmission to a plurality of transmission peers having content to provide a streaming service among peers participating in the P2P network. And a second step of simultaneously receiving the same portion of the same content from multiple transmission peers at the same time, and a third step of providing a user with a streaming service for content received from the first transmission peer among the plurality of transmission peers. It is described.

[Document 1] United States Patent Registration Publication No. 7174385 (Registered on February 6, 2007)

[Document 2] US Patent Publication No. 2006-053209 (published March 9, 2006)

[Document 3] Korean Patent Registration Publication No. 538924 (registered on December 20, 2005)

[Document 4] Korean Patent Registration Publication No. 655600 (December 2, 2006 registration)

However, in the conventional video streaming technology, an expensive VOD server has to be established in order to transmit a high capacity / high definition video to another user. In other words, there is a need for a VOD solution that can show high-quality video for free from other users.

In addition, in order to stream a video owned by another user to another user, there is a problem that a service provided by a video specialized portal or a large portal has to be used.

In addition, the technique disclosed in the above documents has a problem in that the transmission speed may be reduced due to the line or other problem of the peer because streaming of the data pieces held by each of the plurality of peers is provided.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems described above, and provides a streaming method using grid computing and a recording medium recording the same by providing a VOD server environment for a PC to share and stream high-capacity / high definition image files. It is.

It is another object of the present invention to service various contents (text, image, voice, video) produced by a user through a medium such as web, mobile, IPTV, and the like. It is to provide a recording medium.

Another object of the present invention is to build a portal in an optimal environment without using a lot of cost to build an infrastructure when building a UCC portal, streaming method using grid computing that can be managed by a user preferentially in a copyright related problem and It is to provide a recording medium recording this.

Another object of the present invention is to provide a streaming method using a grid computing and a recording medium that can be built early, domestic / foreign user-centered VOD infrastructure, to provide a user convenience and to develop a variety of service models and revenue models based on this It is.

In order to achieve the above object, a first aspect of the present invention provides a streaming service of a multimedia file using a plurality of peers connected to a P2P network, the serving peer storing the multimedia file among the plurality of peers. A service request step of requesting a streaming service of the multimedia file from a request peer of the plurality of peers, and an information request step of the serving peer requesting peer information from a plurality of general peers of the plurality of peers in order to respond to the request And a peer selection step of selecting a general peer to transmit a packet from among a plurality of general peers that have sent the requested peer information using network speed information, and the data packet of the multimedia file as a plurality of general peers to which the serving peer is selected. Packet transmission step of distributing to the general peer itself A packet conversion step of converting the data packet distributed using the idle system resource into a serviceable file format and transmitting the service packet to the serving peer, and the serving peer combines the converted data packet received from each of the general peers. And a service step of generating a complete file and streaming service to the request peer.

According to a second aspect of the present invention, in the first aspect, the file format converted in the packet conversion step or the completed file generated in the service step includes copyright information.

A third aspect of the present invention is the second aspect, wherein the packet conversion step includes encoding or decoding the data packet.

A fourth aspect of the present invention is the third aspect, wherein in the third aspect, when the serving peer detects a problem on the network, the plurality of general peers are configured to transmit each of the data packets converted in the packet conversion step to the request peer. To control the step.

In order to achieve the above object, a fifth aspect of the present invention is a computer-recorded recording medium for providing a streaming service of a multimedia file using a plurality of peers connected to a P2P network, wherein the multimedia among the plurality of peers is provided. A service request step in which a serving peer storing a file receives a streaming service of the multimedia file from a request peer among the plurality of peers, and the serving peer peer information into a plurality of general peers among the plurality of peers in order to respond to the request. Requesting information requesting step, a peer selecting step of selecting a general peer to transmit a packet from among a plurality of general peers that send the requested peer information using network speed information, and a plurality of general peers to which the serving peer is selected Packet transmission for distributing the multimedia file into data packets The packet conversion step of converting the data packet distributed by the general peer using its own idle system resources into a serviceable file format including copyright information and transmitting it to the serving peer, wherein each serving peer is the general peer A service step of generating a complete serviceable file by combining the converted data packet received from the service to the streaming service to the request peer, and each data packet converted in the packet conversion step when the serving peer detects a network problem And controlling the plurality of general peers to transmit to the request peer.

As described above, according to the streaming method using grid computing according to the present invention and a recording medium recording the same, a content copyright holder has to solve a process of resolving the storage, management, copyright existence and legal judgment of the contents in a service provider that accepts the content. It is possible to shorten the process required by directly managing the content and the personal server to solve many problems.

In addition, according to the streaming method using the grid computing according to the present invention and a recording medium recording the same, it is possible to easily apply the necessary functions through the update of the server, and to remotely personalized data (web hard function, text, file, sound) , Video) can be easily managed, and the service type can be changed and received anytime, anywhere through interworking with other devices.

In addition, according to the streaming method using the grid computing according to the present invention and a recording medium recording the same, the service provider does not own the service line and storage media directly, it can significantly reduce the cost of purchasing the line and storage media, In addition to simplifying the organization and minimizing costs, the company can simultaneously enter the global market from the domestic market, which can bring more profits to content authors and owners.

In addition, according to the streaming method using the grid computing according to the present invention and the recording medium recording the same, the content author can directly prevent the duplicate data through the duplication, such as by owning the content, if you do not want any unnecessary data or services any more It is also possible to efficiently manage energy waste through saving space and operating equipment by only removing PC or data storage.

In addition, according to the streaming method using grid computing according to the present invention and the recording medium recording the same, the society which is responsible for the rights holder's rights protection, profit generation and illegal data by applying the concept of copyright equally to the concept of ownership. The effect of providing an atmosphere composition and system can also be obtained.

In addition, according to the streaming method using the grid computing according to the present invention and the recording medium recording the same, anyone can be a reporter, chef, director, novelist, technician, comedian, show host, etc., the cost of trying to weigh the value By paying, the creation of UCC freelancers and UCC SOHO companies in specialized fields leads to job creation and SOHO start-ups, which can lead to job creation and related companies.

In addition, according to the streaming method using grid computing according to the present invention and a recording medium recording the same, the individual VOD server is a big step in enhancing national image and economic development depending on who preoccupies the global UCC in the global competition era. Going global also has the effect that UCC around the world can play a pivotal role in Korea.

In addition, according to the streaming method using the grid computing according to the present invention and a recording medium recording the same, as a new approach of the U-City (Ubiquitous-City, U-City) environment, such as personal, home, office, education, health, culture, etc. Having a unique server that can be shared and stored also has the effect that it can play a big role in accommodating and utilizing culture and knowledge in various device environments (IPTV, mobile TV).

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In addition, in describing this invention, the same code | symbol is attached | subjected and the repeated description is abbreviate | omitted.

1 is a block diagram illustrating a streaming system using grid computing according to an embodiment of the present invention.

As shown in FIG. 1, a streaming system using grid computing according to an embodiment of the present invention includes a plurality of peers connected to a P2P network. A plurality of peers connected to a P2P network refers to a conventional computing system such as a PC, and various types of computing systems such as a server, a mobile, a PDA, and the like may correspond to this. A plurality of peers connected to the P2P network are classified into a serving peer 10, a request peer 20, and a general peer 30 according to a role performed for a situation in which a streaming service is provided. That is, in the following description, a peer storing a multimedia file (video file) to be serviced is referred to as a 'serving peer', and a peer requesting a streaming service of the multimedia file to the serving peer 10 is referred to as a 'request peer'. A peer that acts as an assistant for the peer 10 to provide a streaming service to the request peer 20 is referred to as a 'normal peer'. However, each peer connected to the P2P network may be the serving peer 10, the request peer 20, or the general peer 30, depending on the situation.

The serving peer 10 performs a role of a server serving a stored multimedia file, but is a role of a simple peer, not a role of a broker. That is, it performs well and serves only as a simple peer with some functions added. This is to lay the groundwork for a chain transfer reaction to occur when initial service is started. Therefore, the serving peer 10 has information about a member's ID and password, and simply does not have IP (Internet Protocol) of all users as other peers as superior peers. The information on the other peer is collected by requesting information from the general peers 30 when the service request from the request peer 20 needs to perform a role as the serving peer 10.

In addition, the serving peer 10 serves as a peer for controlling copyrights such as moving pictures. In other words, it serves as a peer that can control the data by inserting a watermark related to copyright, for example, into various data delivered by users.

In addition, the serving peer 10 serves as a push server of the advertisement for advertising revenue according to the BM (Business Model). A 'push server' refers to a server that can distribute various types of advertisement contents and pushes the contents to a user's PC. More specifically, advertising videos and other advertisement-related contents for advertising revenue should be made available to the peers forcibly or selectively. Therefore, in order to export profitable advertisements, at least one of the peers must act as an ad server, and the peers distribute the advertisements to other peers in the same format as the normal peers, and also provide various kinds of clicks. It is a server that collects statistical data.

In the present invention, the relation between 'serving peer' and 'request peer' is that of 'service provider' and 'service user', and the relation between 'serving peer' and 'normal peer' is distributed according to grid computing technology. It's a relationship between a server and a client. In particular, the serving peer 10 actively distributes the work to be processed to a plurality of request peers 20 around the user so that the serving peer 10 can be processed using the idle system resources of each request peer 20. In other words, each peer shares system resources with the user's consent. In the present invention, the serving peer 10 distributes and processes an encoding / decoding operation, which is a task of converting a multimedia file, to provide a streaming service to the request peer 20 to the general peer 30 for processing. By distributing these tasks in a number of general peers 30, the processing speed of the conversion task is greatly improved, so that the serving peer 10 can provide a service to the request peer 20 quickly.

Next, a streaming method using grid computing according to an embodiment of the present invention will be described with reference to FIG. 2.

2 is a flowchart illustrating a streaming method using grid computing according to an embodiment of the present invention.

As shown in FIG. 2, the serving peer 10 first receives a streaming service of a multimedia file from the request peer 20 (ST100). The serving peer 10 requests peer information from a plurality of general peers 30 in order to respond to the received request (ST200), and transmits a packet among a plurality of general peers 30 that have sent the requested peer information in consideration of network speed. The general peer 30 to be transmitted is selected (ST300 and ST310). For example, the serving peer 10 requests five peer information for an arbitrary peripheral IP, and when the peer information arrives from one or more of these IPs, the serving peer 10 makes a search request by using the peer information. If even one peer information is not reached, five peer information requests are continuously attempted to the surrounding general peers 30 unless there is an interruption instruction of the user who uses the serving peer 10.

Next, the serving peer 10 receiving the peer information from the plurality of general peers 30 distributes the multimedia file into a data packet to the selected plurality of general peers 30 (ST400). That is, the serving peer 10 separately transmits the service target file to be processed by the encoding / decoding operation to the surrounding high speed general peers 30. For example, after reaching the peer information, the search query statement is transmitted to the corresponding general peer 30, and the general peer 30 receiving the peer information forwards the search query to another general peer 30. If there is a matching result in the search query, no further search query is transmitted, and the data packet corresponding to the transmitted query is again returned from the general peers 30 around the network. Distribute data packets quickly to peer 30. Peer information of the general peer 30 to which the distributed data packet is delivered is delivered to the serving peer 10 that initially requested the search query. An example of the header of the data format may be shown in Table 1 below.

Serving Peer IP Search query General Peer IP (Multiple) Flag / Dummy Data

Table 1 is as follows.

-'Serving peer IP' and 'search query' refers to the information of the serving peer 10 that initially requested a search.

-'General Peer IP' refers to the IP of the general peer 30 that has information matching the 'search query'.

-If there is no 'normal peer IP', the delivery method as described above continues.

-'Flag / Dummy Data' consists of various flags stored and dummy data.

-Lower general peer data transmitted from the general peers 30 matching the search query exist only for transmission, and thus are deleted after the data transmission is completed.

Next, the general peer 30 receiving the data packet encodes / decodes the received data packet using its idle system resources, converts the received data packet into a serviceable file format (ST500), and converts the converted file into the serving peer 10. In step ST510. Here, the term 'encoding' refers to a task of changing a video input from an external source such as a video camera into a specific format, and the term 'decoding' refers to a task of changing a specific format for reproducing various information of a video or playing back. This encoding / decoding technique is a well-known technique commonly used in the art, so a detailed description thereof will be omitted. The following describes the ST510 step in detail. Each general peer 30 that receives the service target file separated from the serving peer 10 provides a streaming service by transmitting the result of encoding / decoding to the serving peer 10 having the original service target file. This can greatly speed up the encoding / decoding process. An example of the converted data format may be shown in Table 2 below.

Data Numbering Serving Peer IP Divide Data CRC Data Watermark

Table 2 is described below.

'CRC data' refers to cyclic redundancy checking data of transmitted data. That is, it means data that can verify whether the transmitted data is correctly transmitted. It does not have the form of a general CRC, and information of divided data is also included, but may be included when a CRC is referred to.

-Of course, other techniques besides watermark can be used as a method of including copyright information.

Finally, the serving peer 10 requesting the first search combines the data packets converted from each of the distributed general peers 30 in order, and generates the resultant serviceable complete file as a result (ST600). Streaming to 20 or other operation is performed (ST610). The resulting product may be a simple multimedia file or may be a multimedia stream. An example of the format of the generated file can be shown in Table 3 below.

Watermark Encoding / Decoding / Stream

Table 3 is as follows.

-Stream: Even if the request peer 20 does not have multimedia data, the video can be viewed in real time from the serving peer 10 (which may be a number) through the P2P network.

If the serving peer 10 detects a problem on the network, the serving peer 10 controls each general peer 30 to transmit each data packet converted in step ST500 to the request peer 20. (ST700-ST720). As a result, the network speed of each independent peer is often inconsistent, thereby overcoming this and showing an improved data rate. The data transmitted from the general peer 30 to the request peer 20 is assembled in the request peer 20 to be shown in real time streaming. In this case, even when the serving peer 10 having the service target file is dropped due to a network problem or other problem, the request peer 20 can receive the data without a problem.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

The present invention can be utilized in various technical fields.

First, a voice or video stream service may be provided in a VOD stream service field. In other words, in the past, the general public could not provide services by selling only to high-cost servers, but they could remotely manage video files, voice files, texts, etc. through their own PCs, and download high-quality video files without downloading them. Being able to show people makes it possible to build a content provider while using it for personal purposes.

Next, IPTV, Internet, VoIP, video telephony can be activated and stored in the field of set-top box. In other words, in order to use IPTV, Internet, VoIP, and video telephony, there was a separate set-top box to operate the devices, but the individual VOD server according to the present invention is an enterprise-class supporting both the home and office environment and the UCC environment at the same time. It will play a role.

Next, in the field of P2P (Personal Information Exchange), information and data can be transmitted between individuals. In other words, the introduction of a new business model called the introduction of video streaming service through P2P and the establishment of a profit model that the content produced by the user can be profitable can establish the basis for the activation of various content producers and the creation of high-quality content. .

Next, in the field of copyright protection of UCC (user-generated content), a copyright protection technology (DRM) of a material having an author may be provided. In other words, the author directly manages the contents on his machine and provides them with watermarks when sending them to others. Even though they are illegally leaked by a method such as capture, illegally distributing illegal contents and distributing illegal contents by IP. Can prevent the spread of

In addition, the illegal distribution of UCC can be eradicated. In other words, the explosive growth of user-generated content (UCC) videos is raising the voice of establishing a comprehensive concept on copyright as the government is preparing UCC copyright guidelines. Therefore, the present invention manages and manages the contents of the user in his server, and the IP tracking is possible for illegal distribution contents, so that the illegal distribution can be eradicated early by the fast logic of cause and identification.

In addition, UCC creators can add unprecedented added value by UCC value judgment. The present invention creates added value by integrating UCC and operating through one channel. In particular, the present invention adopts the P2P method, so that the solution can be distributed to any country in the world, and users are expected to increase rapidly, which is expected to be a market that is hard to find worldwide in the advertising market. Therefore, the license for Star UCC producers will be competitively balanced between content distribution and producers, which will provide an opportunity to raise the quantity and quality of UCC.

It can also serve as a main server in a U-city environment. With the recent advances in broadband communications and WiBro's technological advances, we will soon come to the U-City environment and encounter the U-City culture. If only technology is advanced and content is poor, technological progress is meaningful for research, but it is difficult to find the direct meaning of the practical use. Therefore, by focusing on the global sharing, utilization, copyright, and value of content, the importance of the U-City personal server philosophy that can be used industrially or personally, for example, you can view your wedding video on IPTV through your own server. In addition, today's dishes can be cooked directly through personal UCC search to create a healthy diet, and students will be able to see their majors on mobile TV in the park.

1 is a block diagram showing a streaming system using grid computing according to an embodiment of the present invention,

2 is a flowchart illustrating a streaming method using grid computing according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: serving peer 20: request peer

30: Normal Peer

Claims (5)

In the method for providing a streaming service of a multimedia file using a plurality of peers connected to a peer to peer (P2P) network, A service request step in which a serving peer for storing the multimedia file among the plurality of peers receives a streaming service of the multimedia file from a request peer among the plurality of peers; An information requesting step, wherein the serving peer requests peer information from a plurality of general peers of the plurality of peers in response to the request; A peer selection step of selecting, by the serving peer, a general peer to transmit a packet among a plurality of general peers which have sent the requested peer information using network speed information; A packet transmission step of distributing the multimedia file into data packets by a plurality of general peers in which the serving peer is selected; A packet conversion step in which the general peer converts the data packet distributed using its idle system resources into a serviceable file format and transmits the data packet to the serving peer; And a service step in which the serving peer combines the transformed data packets received from each of the general peers into a serviceable complete file and provides a streaming service as the request peer. The packet conversion step is a streaming method using grid computing, characterized in that for encoding or decoding the data packet. The method of claim 1, The file format converted in the packet conversion step or the completed file generated in the service step comprises a copyright information streaming method using grid computing. delete The method of claim 2, And controlling the plurality of general peers to transmit each of the data packets converted in the packet conversion step to the request peer when the serving peer detects a problem on the network. Streaming method used. In a recording medium recording with a computer a method of providing a multimedia file streaming service using a plurality of peers connected to a P2P network, A service request step in which a serving peer for storing the multimedia file among the plurality of peers receives a streaming service of the multimedia file from a request peer among the plurality of peers; An information requesting step, wherein the serving peer requests peer information from a plurality of general peers of the plurality of peers in response to the request; A peer selection step of selecting, by the serving peer, a general peer to transmit a packet among a plurality of general peers which have sent the requested peer information using network speed information; A packet transmission step of distributing the multimedia file into data packets by a plurality of general peers in which the serving peer is selected; A packet conversion step of converting the data packet distributed by the general peer using its own idle system resource into a serviceable file format including copyright information and transmitting the service packet to the serving peer; A service step in which the serving peer combines the transformed data packets received from each of the general peers into a serviceable complete file for streaming service to the request peer; If the serving peer detects a problem on the network, controlling the plurality of general peers to transmit each data packet converted in the packet conversion step to the request peer, And a computer-readable recording medium having recorded thereon a program for encoding or decoding the data packet in the packet conversion step.

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