JP2012216973A - P2p advertisement distribution method and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To distribute a content and an advertisement video to a content request, and to distribute P2P streaming in which a content cannot be reproduced until after completion of reproduction of the advertisement video.SOLUTION: A P2P advertisement distribution method includes: a step of a request peer 1 transmitting a peer list request, in which a meta information file of each advertisement video and a meta information file of the content are described, to a distribution control server 40; a step of the distribution control server 40 sending a peer list of each advertisement video and a peer list of the content back to the request peer 1; and a step of the request peer 1 downloading the advertisement video by connecting to a peer described in the peer list of each advertisement video, and downloading the content by connecting to a peer described in the peer list of the content. The request peer 1 reproduces each downloaded advertisement video, and starts reproduction of the downloaded content after the reproduction of all of the advertisement videos is completed.

Description

  The present invention relates to a P2P advertisement distribution method and system for distributing content and advertisement video by P2P streaming, and in particular, when a user designates desired content and requests distribution, the advertisement video that matches the user's preference is displayed together with the content. The present invention relates to a distributed P2P advertisement distribution method and system.

  In content distribution using conventional P2P technology, as disclosed in Patent Document 1, when a user specifies content to be downloaded, only the specified content is distributed. Accordingly, the content and the advertisement video must be distributed separately or distributed using different distribution technologies.

  In addition, if an advertisement video is connected in advance to the top part of the content, and this is streamed as advertisement-attached content, viewing restrictions such that the content can be viewed only after the advertisement video is viewed can be realized.

JP 2002-259433 A

  In the prior art, when the user specifies the content that the user wants to download, only the specified content is distributed. Therefore, when distributing content with an advertisement (only the user who viewed the advertisement video can view the content), the advertisement video is displayed. The technology to deliver and the technology to deliver content had to be separated. Further, in such separate distribution, it is difficult to introduce a viewing restriction that associates reproduction of advertisement video and content reproduction so that the content can be reproduced only after the advertisement video is reproduced.

  Furthermore, in the method in which the advertisement video is linked in advance to the top part of the content, the relationship between the content and the advertisement video is fixed, so that each user can select and view an advertisement video that suits their preferences. Can not. In order for each user to view an advertisement video that suits their preferences, it is necessary to manage the advertisement video and the content separately, and select and distribute the advertisement video when distributing the content.

  The object of the present invention is to solve the above-mentioned problems of the prior art, and when a user requests distribution of content, advertisement video is distributed together with the content using P2P technology. It is an object of the present invention to provide a P2P advertisement distribution method and system capable of realizing viewing restrictions that cannot be performed without previously connecting advertisement video to content.

  In order to achieve the above object, the present invention is characterized in that a P2P advertisement distribution method for distributing contents together with advertisement video to a requesting peer by P2P streaming has the following configuration.

  (1) A procedure in which a portal server that manages a meta information file of advertisement video and a meta information file of content detects a request for user information and content distribution from a requesting peer, and the portal server requests the user information and distribution. A procedure for transmitting an advertisement recommendation request in which information of the content is described to the advertisement recommendation server, a procedure for the advertisement recommendation server to select at least one advertisement video based on the user information and the content information, and the advertisement recommendation A procedure in which the server returns information on each of the selected advertisement videos to the portal server, and the portal server uses the advertisement information meta information file and content meta information file based on the advertisement information and content information. And the portal The server transmits the meta information file of each advertisement video and the meta information file of content to the requesting peer, and the request peer describes the meta information file of each advertising video and the meta information file of the content. A procedure for transmitting a peer list request to the distribution control server; a procedure for the distribution control server to return a peer list of each advertisement video and a peer list of content to the requesting peer; and Connecting to the peers described in the peer list of the content and downloading each advertisement video, connecting to the peers described in the peer list of the content and downloading the content, and the requesting peer to download each advertisement Play the video and start playing the downloaded content after all the advertising videos have been played. It was so.

  (2) A procedure in which the distribution control server transmits a peer list request together with information on peers possessing a part or all of each advertisement video and content and information on the requesting peers to a topology information management server that manages network topology The topology information management server generates a peer list of each advertisement video and a peer list of content based on the network topology; and the topology information management server includes a peer list and content of each advertisement video And returning a peer list to the distribution control server, each peer registered in the peer list is given a priority based on the network topology.

  (3) The requesting peer schedules the playback start time of other advertisement videos and contents based on the playback start time of the advertisement video that is played first, and when the playback of the advertisement video is interrupted, The playback start time of the video and content is delayed by the time when the playback is interrupted.

  (4) The download of the (m + 1) th advertisement video or content is started when the download of the mth advertisement video is completed or the reproduction of the mth advertisement video is completed by a predetermined ratio.

  (5) The distribution control server includes a procedure for setting the reproduction order of each advertisement video, and makes the reproduction order of the advertisement video in which more peers in the same segment as the peer list requesting peer are registered earlier.

  (6) For advertisement videos in which the same number of peers of the same segment as the requested peer are registered in the peer list, the playback order of advertisement videos in which more peers with higher connection line speeds are registered in the peer list is accelerated. I tried to do it.

  (7) The requesting peer includes a procedure for setting the playback order of each advertisement video so that the playback order of the advertisement video having a slower playback speed is made earlier. It is also possible to determine the playback order of advertisements in the order specified by the recommendation server.

  (8) If the requesting peer cannot download each advertisement video and content by a predetermined timing, the requesting peer connects to the content server that manages the original advertisement video and content and downloads the advertisement video and content to another It was done in parallel with downloading from the peer.

  (9) When the number of connected peers falls below a predetermined lower limit during the download of each advertisement video and content, the requesting peer connects to the content server that manages the original advertisement video and content and connects the advertisement video and content. Downloading was done in parallel with downloading from other peers.

  (10) Downloading from the content server is stopped when the number of connected peers exceeds a predetermined lower limit.

  (11) If the requesting peer cannot complete the download of the advertisement video and content by the predetermined timing, the requesting peer sends a peer list request for the advertisement video to the distribution control server to acquire a new peer list, and Switch to the peer registered in the peer list.

  (12) When the number of connected peers falls below a predetermined lower limit during downloading of advertisement video and content, the requesting peer transmits a peer list request for the advertisement video to the distribution control server to newly acquire the peer list, The connection peer is switched to the peer registered in the peer list.

  According to the present invention, the following effects are achieved.

  (1) Since content and advertisement video are managed separately and sent to the requesting peer in a batch, not only multiple distribution technologies can be introduced, but simultaneous distribution of content and advertisement video is possible. Since the advertisement video can be selected regardless of the content based on the user information, the advertisement video suitable for the user's preference can be distributed.

  (2) A topology information management server is provided, and each peer registered in each advertisement video peer list and content peer list is given higher priority as the network distance from the requesting peer is closer based on the network topology. Therefore, the requesting peer can be preferentially downloaded from a peer with a small delay time, so that the delivery time is shortened and network resources can be used efficiently.

  (3) The requesting peer schedules the playback start time of other advertisement videos and contents based on the playback start time of the advertisement video to be played first, and when the playback of the advertisement video is interrupted, Since the reproduction start time of the video and content is delayed by the time when the reproduction is interrupted, it is possible to view all of the advertisement video and to prevent the act of viewing only the content.

  (4) Since the download of the m + 1st advertisement video or content is started when the mth advertisement video has been downloaded or the mth advertisement video has been reproduced by a predetermined rate, the advertisement video and It is possible to prevent the video from being interrupted because the content download is not in time for playback.

  (5) Since the delivery control server makes the playback order of the advertisement video in which more peers of the same segment as the requesting peer are registered in the peer list earlier, the influence of the delay time is reduced. Therefore, it is possible to shorten the time until the data corresponding to the playback buffer size is gathered at the requesting peer and the entire download time, and it is possible to prevent the video from being cut off because the advertisement video and content are not downloaded in time for playback. It becomes like this.

  (6) The distribution control server plays back advertisement videos in which more peers with higher connection line speeds are registered in the peer list with respect to advertisement videos in which the same number of peers of the same segment as the requested peer are registered in the peer list. Since the order is made earlier, the download speed is reduced, and the time required for collecting data for the playback buffer size at the requesting peer and the overall download time can be shortened. It becomes possible to prevent the video from being interrupted.

  (7) Since the requesting peer makes the playback order of the advertisement video having the slower playback speed earlier, it is possible to prolong the time until playback of the next advertisement. Therefore, since it is possible to download using the prolonged time, it is possible to prevent the video from being cut off because the advertisement video and the content are not downloaded in time for reproduction.

  (8) If the requesting peer cannot download each advertisement video and content by the predetermined timing, it connects to the content server that manages the original advertisement video and content and downloads the advertisement video and content directly. Since it is performed in parallel with the download from the peer, it is possible to prevent the video from being interrupted because the download is not in time for playback.

  (9) When the number of connected peers falls below a predetermined lower limit during downloading of each advertising video and content, the requesting peer connects to the content server that manages the original advertising video and content and downloads the advertising video and content. Since the direct download is performed in parallel with the download from another peer, it is possible to prevent the video from being interrupted because the download is not in time for playback.

  (10) When the number of connected peers exceeds a predetermined lower limit value, direct download from the content server is stopped, so that an opportunity to connect to the content server and download directly can be assigned to another peer.

  (11) If the requesting peer cannot complete the download of the advertisement video and content by the predetermined timing, it again sends a peer list request for the advertisement video to the distribution control server to acquire a new peer list, and Switching to a peer registered in the peer list enables connection with a downloadable peer. Therefore, it is possible to prevent the video from being interrupted because the download is not in time for reproduction.

  (12) When the number of connected peers falls below the specified lower limit during the download of advertisement video and content, the requesting peer sends a new peer list request to the distribution control server to obtain a new peer list. Since the connection peer is switched to a peer registered in the peer list, connection with a downloadable peer is possible. Therefore, it is possible to prevent the video from being interrupted because the download is not in time for reproduction.

1 is a block diagram showing a configuration of a P2P network to which the present invention is applied. It is the figure which showed an example of the peer list. It is the figure which showed an example of the advertisement and content management table. It is a time chart which showed the operation | movement outline | summary of this invention. It is the flowchart which showed the advertisement information and the download method of a content in a request | requirement peer. It is the flowchart which showed the reproduction method of the advertisement information and content in a requesting peer. It is a flowchart of a download promotion process. It is the figure which showed the example of a scheduling of the reproduction | regeneration start time of an advertisement video and a content.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a P2P network to which the P2P advertisement distribution method and system of the present invention is applied. Here, the configuration unnecessary for the description of the present invention is omitted.

  The content server 10 holds the advertisement video and the original content. The portal server 20 opens a portal site holding advertisement video and content meta information files (torrent files), and is requested to a peer (requesting peer 1) that requests content distribution on the portal site. A torrent file of content and a torrent file of advertisement video that matches the user's preference are provided collectively. In response to the request from the portal server 20, the advertisement recommendation server 30 introduces a plurality of advertisement videos that match the user's preference for requesting content distribution.

  In response to the peer list request from the requesting peer 1, the distribution control server (p-tracker) 40 provides a list of peers (peer list) that can distribute advertisement video and content in P2P. The topology information management server (n-tracker) 50 (50a, 50b) manages the topology of the P2P network for each AS or ISP. The address providing server (nNserver) 60 returns the address of the n-tracker 50 in response to the address request from the p-tracker 40. The providing peer 70 (70a, 70b) possesses all or part of the advertisement video and the content in pieces, and distributes each piece to the requesting peer 1 of the connection partner by P2P.

  In such a P2P distribution system, when each peer downloads content for the first time, all files are downloaded directly from the content server 10, but thereafter, each content is divided into a plurality of pieces (a large number of pieces in the form of pieces). File pieces) and distributed to each peer on the network.

  A user who desires content distribution accesses the portal site operated by the portal server 20 from the requesting peer 1 and notifies the user information on the portal site (procedure 1). This user information includes the IP address, past download content information, contracted line company, line type (FTTH, ADSL, etc.), and the like. The portal server 20 preferentially displays a list of contents suitable for the user's preference on the web page based on the notified user information. The user designates desired content from among a large number of contents displayed in a list (procedure 2).

  The portal server 20 transmits an advertisement recommendation request in which the content information designated by the user, the user information, and the number of advertisements are described to the advertisement recommendation server 30 (procedure 3). The user information may be the user information itself notified in the procedure 1, or only the user identifier is notified in the procedure 1, and the user information associated with the user identifier in advance is described in the advertisement recommendation request and transmitted. You may make it.

  The advertisement recommendation server 30 selects a plurality of advertisement videos suitable for the user's preference based on the content information and user information described in the advertisement recommendation request, and displays advertisement information (the number of advertisements, advertisement information 1, advertisement information). 2)) is returned to the portal site server 20 (procedure 4). Based on the advertisement recommendation response, the portal server 20 returns a torrent file of each advertisement video (advertisement 1 torrent, advertisement 2 torrent...) And a content torrent file to the requesting peer 1 (procedure 5).

  Based on the torrent file of each advertisement video and the torrent file of content acquired from the portal site server 20, the requesting peer 1 sends a peer list request in which the content information, user information, the number of advertisements, and each advertisement information are described to the p-tracker 40. (Procedure 6). In response to the peer list request, the p-tracker 40 sends an address inquiry request to the nNserver 60 to inquire about the address of the n-tracker 50 (step 7). In response to the address inquiry request, the nNserver 60 returns the address of the n-tracker 50 to the p-tracker 40 (procedure 8).

  The p-tracker 40 transmits a peer list request for each advertisement video and content to the n-tracker 50. At this time, the information of the peer possessing each advertisement video and part or all of the content and the information of the requesting peer 1 are transmitted together. The n-tracker 50 creates a peer list of each advertisement video and content based on the network topology information (procedure 10), and returns these to the p-tracker 40 (procedure 11). In this peer list, a priority is set for each peer, and a high priority is set for a peer belonging to the same segment as the requesting peer 1. Further, a higher priority is set for a peer having a shorter network distance to the requesting peer 1.

  The p-tracker 40 returns the peer list of each advertisement video and the content peer list to the requesting peer 1 (procedure 12). FIG. 2 is a diagram showing an example of a peer list. In this embodiment, these peers are registered at the top so that downloads from peers in the same ISP or the same AS are given priority, and at the end of the peer list. The content server 10 is registered. In the request peer 1, each advertisement video and content is managed together with the reproduction order, reproduction speed, and reproduction time in the advertisement / content management table of FIG.

  Note that the playback order of the advertisement video is set by the p-tracker 40 or the requesting peer 1. When the playback order of the advertisement video is set by the p-tracker 40, the playback order of the advertisement video in which more peers of the same segment as the requesting peer are registered in the peer list is made earlier. Also, for advertisement videos in which the same number of peers of the same segment as the requested peer are registered in the peer list, the playback order of advertisement videos in which more peers with faster connection line speeds are registered in the peer list is made faster. The When the playback order of the advertisement video is set by the requesting peer 1, the playback order of the advertisement video having a slower playback speed (bit rate) is made faster.

  The requesting peer 1 connects to the peers registered in the peer list of each advertisement video, downloads the pieces of each advertisement video (step 13), plays the advertisement videos sequentially, and finally enters the content peer list. Connect to the registered peer and download the content piece (step 14) to play the content video. The result of viewing the advertisement video by the user is relayed to the portal server 40 (procedure 15) and notified to the advertisement recommendation server 30 (procedure 16).

  Next, the operation of the requesting peer 1 will be described focusing on the download and playback of content (advertisement video). Here, an outline of the operation will be described first along the time chart of FIG. 4, and then each procedure of download and reproduction will be described in detail with reference to the flowcharts of FIGS.

  In FIG. 4, at time t1, the connection with each peer set in the peer list of the first advertisement K1 is established in the priority order, and the download of the advertisement K1 is started. When the download for the playback buffer size is completed at time t2, playback of the advertisement K1 is started. In the present embodiment, the reproduction start time t2 of the first advertisement K1 is set to the start point = 0 of the reference time T, and thereafter, the reproduction start time of each advertisement K and content is scheduled based on the reference time T.

  FIG. 8 is a diagram showing an example of the scheduled playback start time. The start time of the advertisement K1 is the reference time T1, and the reference time T2 at which the playback of the advertisement K2 is started is the playback time of the advertisement K1. If P1, then (T1 + P1). Similarly, the reference time T3 at which the reproduction of the advertisement K3 is started is T2 + P2, the reference time T4 at which the reproduction of the advertisement K4 is started is T3 + P3, and the reference time T5 at which the reproduction of the content is started is T4 + P4. Become.

  At time t3, when the download of the advertisement K1 is completed or when the reproduction of the advertisement K1 is completed at a predetermined rate r (r = 0.0 to 1.0) (T1 + r · P1), the download of the next advertisement K2 starts. The timing is determined, the connection with the peer set in the peer list of the advertisement K2 is established, and the download of the advertisement K2 is started.

  When the reference time T2 is reached, the playback of the advertisement K2 is started, and when the download of the advertisement K2 is completed at the time t4 or when the playback of the advertisement K2 is completed by a predetermined ratio r, it is determined that the download start timing of the next advertisement K3 is reached. The connection with the peer set in the peer list of the advertisement K3 is established, and the download of the advertisement K3 is started.

  Similarly, the reproduction of the advertisement K3 starts at the reference time T3, but the download speed decreases due to, for example, network or peer congestion, and the download of the advertisement K3 is completed before the download of the advertisement K3 is completed at time t5. When the reproduction is completed by a predetermined ratio r, the download of the next advertisement K4 is started in parallel without waiting for the completion of the download of the advertisement K3.

  Furthermore, when the remaining time until the scheduled time (reference time T4) at which the reproduction of the advertisement K3 is completed at time t6 is less than the surplus time e, the requesting peer 1 connects to the content server 10 and directly downloads from the content server 10. This prevents content from being stopped. Such direct download from the content server 10 is also performed when the number of connected peers falls below a predetermined lower limit.

  In the present embodiment, assuming such direct download from the content server 10, the number of simultaneous upload peers per content in the content server 10 is controlled to be less than a preset upper limit value (Max unchoke number). Reserve a spare. If the upper limit value Max number of unchokes = U, the upload number u of the content server 10 is always controlled to u <U.

  Similarly, the reproduction of the advertisement K4 is started at the reference time T4, and when the download of the advertisement K4 is completed at the time t7, immediately after that or when the reproduction of the advertisement K4 is completed by a predetermined ratio r (T4 + r · P4) The connection with the peer set in the content peer list is established, and the download of the content is started. When the reference time T5 is reached, content playback is started.

  On the other hand, when the playback of the content is paused, the stop period Tpuase is timed, and the start start time is updated so that the subsequent advertisement video and content playback timing is delayed by the time measured.

  FIG. 5 is a flowchart showing a method for downloading (DL) advertisement video and content in the requesting peer 1, and FIG. 6 is a flowchart showing a method for reproducing the downloaded advertisement video and content. In the streaming distribution targeted by this embodiment, the download in FIG. 5 and the reproduction in FIG. 6 proceed in parallel.

  First, referring to FIG. 5, in step S <b> 1, the number of advertisements is substituted into a variable n, and a variable x that identifies the current download target is reset. In step S2, the variable x is incremented to x = 1, and the advertisement Kx (here, advertisement K1) is selected as a download target. In step S3, the connection with the peers registered in the peer list of the advertisement Kx is sequentially established, and the download of the advertisement Kx is started.

  In step S4, it is determined whether or not the number of connected peers is sufficient. If the number of connected peers is not below a predetermined lower limit value, the process proceeds to step S6. In step S6, it is determined whether it is the download timing of the next advertisement (Kx + 1). If it is not the download timing, the process returns to step S3, and the download of the advertisement Kx is continued.

  During the download of the advertisement Kx, if it is determined in step S4 that the number of connected peers is equal to or less than a predetermined lower limit value, the process proceeds to step S5, and a download promotion process for promoting the download of the advertisement Kx is executed.

  FIG. 7 is a flowchart showing the procedure of the download promotion process. In step S41, a connection is established with the content server 10 in order to promote the download of the advertisement Kx. Download starts. In step S42, the peer list of the advertisement Kx is requested to the p-tracker 40 again. In step S43, the connection is switched to a new peer registered in the newly acquired peer list.

  In addition, since the number of uploads that the content server 10 can directly deliver advertisement video and content to the requesting peer simultaneously is defined by the Max unchoke number, the direct download from the content server 10 started in step S41 is It is canceled when it is determined that the number of peers is less than the lower limit.

  As described above, in the present embodiment, when the number of connected peers decreases, download promotion processing such as direct download from the content server 10 and re-acquisition of the peer list is executed. Can be prevented.

  Referring to the reproduction process of FIG. 6, in step S21, the number of advertisements is substituted for variable n, and variable y for identifying the current reproduction target is reset. In step S22, the variable y is incremented to y = 1, and the advertisement K1 is first selected as a reproduction target. In step S23, it is determined whether or not the download of the advertisement K1 proceeding in parallel has been completed by the size of the reproduction buffer, and the process proceeds to step S24 after completion.

  In step S24, the playback start times of all advertisement videos and contents are scheduled. In the present embodiment, as described with reference to FIG. 8, the current time is the reproduction time (reference time) T1 of the first advertisement K1, and the reproduction times of other advertisements K and content are determined based on the reference time T1. The In step S25, the reproduction of the advertisement Ky (K1) is started.

  In step S26, it is determined whether or not the reproduction of the advertisement Ky is interrupted in response to the deterioration of the line quality or the user operation. When the interruption of reproduction is detected, the process proceeds to step S27, and the reproduction interruption timer Tpause is up-counted. In step S28, it is determined whether or not the reproduction is resumed. Until the reproduction is resumed, the process returns to step S27 and the upcounting of the reproduction interruption timer Tpause is continued. When the reproduction is resumed, the process proceeds to step S29, and the reproduction times of the advertisements (except for the completion of reproduction) and the contents are rescheduled. That is, the Tpause is added to each reproduction start time T in FIG.

  Returning to the download process of FIG. 5, if it is determined in step S6 that it is the download timing of the next advertisement (Kx + 1), the process proceeds to step S7, and it is determined whether or not the download of the advertisement Kx is completed. . If the download of the advertisement Kx has already been completed as shown at time t4 in FIG. 4, the process proceeds to step S9, where it is determined whether or not the download of all advertisements K has been completed (n = x). Until the download of all advertisements K is completed, the process returns to step S2, and the download is continued while switching the advertisements K to be downloaded.

  On the other hand, when the download timing of the next advertisement Kx + 1 (K4) is reached before the download of the advertisement Kx (K3) is completed as shown at time t5 in FIG. 4, the process is performed from step S7 to step S8. Proceed to In step S8, the download promotion process of FIG. 7 is executed, and the direct download from the content server 10 and the re-acquisition of the peer list are performed.

  Thereafter, when it is determined in step S9 that all advertisements K have been downloaded, the process proceeds to step S10, where content download is started. In step S11, it is determined whether or not the number of connected peers is sufficient. If the number of connected peers is not less than a predetermined lower limit value, the process proceeds to step S13. In step S13, it is determined whether or not content download has been completed. Until the process is completed, the process returns to step S11 to continue downloading the content.

  If the number of connected peers is determined to be equal to or less than a predetermined lower limit value in step S11 during the download of the content, the process proceeds to step S12, and download promotion processing for promoting the content download is executed in the same manner as described above. .

  Returning to the reproduction process of FIG. 6, in step S30, it is determined whether or not it is a reference time for starting reproduction of the next advertisement Ky + 1. If it is not the reference time, the process returns to step S25 and the reproduction of the current advertisement Ky is continued. On the other hand, if it is the reproduction timing of the next advertisement Ky + 1, the process proceeds to step S31 to determine whether or not the reproduction of the advertisement video is completed. If it is not y = n, it is determined that the process has not been completed, and the process returns to step S22, and the above processes are repeated while switching the reproduction target.

  On the other hand, when it is determined that the reproduction of the advertisement K is completed, the process proceeds to step S32, and the reproduction of the content is started. In step S33, it is determined whether or not the content reproduction has been completed. Until the process is completed, the process returns to step S32 to continue the reproduction of the content, and the process ends after the reproduction of the content is completed.

  In the above embodiment, the advertisement video and the content are both assumed to be video files. However, the present invention is not limited to this, and may be an audio file, a still image file, or a combination thereof. There may be.

  DESCRIPTION OF SYMBOLS 10 ... Content server, 20 ... Portal server, 30 ... Advertisement recommendation server, 40 ... Distribution control server (p-tracker), 50 (50a, 50b) ... Topology information management server (n-tracker), 60 ... Address provision server ( nNserver), 70 ... Providing peer

Claims (13)

In the P2P advertisement distribution method that distributes the content along with the advertisement video to the requesting peer by streaming using P2P technology,
The portal server that manages the meta information file of the advertisement video and the meta information file of the content detects the user information and the content distribution request from the requesting peer,
The portal server transmits an advertisement recommendation request in which the user information and information of the content requested to be distributed are described to the advertisement recommendation server;
The advertisement recommendation server selecting at least one advertisement video based on the user information and content information;
A procedure in which the advertisement recommendation server returns information of each selected advertisement video to the portal server;
The portal server selects a meta information file for each advertisement video and a meta information file for content based on the advertisement information and content information, and
The portal server transmits a meta information file of each advertisement video and a meta information file of content to a requesting peer;
The requesting peer transmits a peer list request in which the meta information file of each advertisement video and the meta information file of the contents are described to the distribution control server;
The delivery control server returning a peer list of each advertisement video and a peer list of contents to the requesting peer;
The requesting peer connects to a peer described in the peer list of each advertising video to download each advertising video, and connects to a peer described in the peer list of the content to download content;
The P2P advertisement distribution method, wherein the requesting peer starts reproduction of contents after completion of reproduction of all advertisement videos based on a reproduction schedule determined to reproduce contents after completion of reproduction of each advertisement video . The distribution control server transmits a peer list request together with information on peers possessing part or all of each advertisement video and content and information on the requesting peer to a topology information management server that manages a network topology;
The topology information management server generates a peer list of each advertisement video and a peer list of contents based on the network topology;
The topology information management server returns a peer list of each advertisement video and a peer list of contents to the distribution control server;
2. The P2P advertisement distribution method according to claim 1, wherein each peer registered in the peer list is given a priority based on a network topology. The requesting peer schedules the playback start time of other advertisement video and content based on the playback start time of the advertisement video to be played first,
3. The P2P advertisement distribution method according to claim 1, wherein when the reproduction of the advertisement video is interrupted, the playback start time of the subsequent other advertisement video and content is delayed by the time when the reproduction is interrupted.   2. The download of the (m + 1) th advertisement video or content is started when the download of the mth advertisement video is completed or the reproduction of the mth advertisement video is completed by a predetermined rate. 4. The P2P advertisement distribution method according to any one of 3 to 3. The distribution control server includes a procedure for setting a playback order of each advertisement video,
5. The P2P advertisement distribution method according to claim 1, wherein the playback order of advertisement videos in which more peers of the same segment as the requested peer are registered in the peer list is made earlier.   For advertisement videos in which the same number of peers in the same segment as the requesting peer are registered in the peer list, the playback order of advertisement videos in which more peers having a higher connection line speed are registered in the peer list is made earlier. The P2P advertisement delivery method according to claim 5, wherein: The requesting peer includes a procedure for setting a playback order of each advertisement video;
5. The P2P advertisement distribution method according to any one of claims 1 to 4, wherein a playback order of a video advertisement having a slower playback speed is made earlier.   If the requesting peer cannot download each advertising video and content by a predetermined timing, the requesting peer connects to the content server that manages the original advertising video and content and downloads the advertising video and content from other peers. The P2P advertisement distribution method according to any one of claims 1 to 7, wherein the P2P advertisement distribution method is performed in parallel with the download of the URL.   When the number of connected peers falls below a predetermined lower limit during downloading of each advertising video and content, the requesting peer connects to the content server that manages the original advertising video and content and downloads the advertising video and content. The P2P advertisement distribution method according to any one of claims 1 to 7, wherein the P2P advertisement distribution method is performed in parallel with downloading from another peer.   10. The P2P advertisement distribution method according to claim 9, wherein when the number of connected peers exceeds a predetermined lower limit value, downloading from the content server is stopped.   If the requesting peer cannot download the advertisement video and the content by a predetermined timing, the requesting peer transmits a peer list request for the advertisement video to the distribution control server to newly acquire the peer list, and connects the connected peer to the peer list. The P2P advertisement delivery method according to claim 1, wherein the peer is registered to a peer registered in   When the number of connected peers falls below a predetermined lower limit during downloading of advertisement video and content, the requesting peer transmits a peer list request regarding the advertisement video to the distribution control server to newly acquire a peer list, and The P2P advertisement distribution method according to any one of claims 1 to 11, wherein the P2P advertisement is switched to a peer registered in the peer list. In the P2P advertisement distribution system that distributes the content along with the advertisement video to the requesting peer by P2P streaming,
A portal server that manages the meta information file of advertisement video and the meta information file of content;
An advertisement recommendation server for introducing at least one advertisement video based on information of a user who requests distribution of content;
A distribution control server for controlling P2P distribution,
The portal server
Means for detecting user information and content delivery requests from requesting peers;
Means for transmitting to the advertisement recommendation server an advertisement recommendation request in which the user information and information of the content requested to be distributed are described;
The advertisement recommendation server is:
Means for selecting at least one advertisement video based on the user information and content information;
Means for returning information of each of the selected advertisement videos to the portal server,
The portal server further includes:
Means for selecting a meta information file of each advertisement video and a meta information file of content based on each of the advertisement information and content information;
Means for transmitting each advertisement video meta information file and content meta information file to the requesting peer;
The requesting peer is
Means for transmitting a peer list request describing the meta information file of each advertisement video and the meta information file of the content to the distribution control server,
The delivery control server is
Means for returning a peer list of each advertisement video and a peer list of content to the requesting peer;
The requesting peer further comprises:
Means for connecting to a peer described in the peer list of each advertisement video to download each advertisement video, and connecting to a peer described in the peer list of the content to download content;
A P2P advertisement distribution system comprising: means for reproducing each downloaded advertisement video and starting reproduction of the downloaded content after completion of reproduction of all advertisement videos.

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