CN110290394A - A kind of video on-demand system and method - Google Patents

A kind of video on-demand system and method Download PDF

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Publication number
CN110290394A
CN110290394A CN201910634070.5A CN201910634070A CN110290394A CN 110290394 A CN110290394 A CN 110290394A CN 201910634070 A CN201910634070 A CN 201910634070A CN 110290394 A CN110290394 A CN 110290394A
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China
Prior art keywords
video
demand
file
request
client
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Application number
CN201910634070.5A
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Chinese (zh)
Inventor
杨沪辉
顾叶丹
李嘉
董新明
杨卿
张驰
李文杰
俞成杰
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Ningbo Huashu Radio And Television Network Co Ltd
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Ningbo Huashu Radio And Television Network Co Ltd
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Priority to CN201910634070.5A priority Critical patent/CN110290394A/en
Publication of CN110290394A publication Critical patent/CN110290394A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/232—Content retrieval operation locally within server, e.g. reading video streams from disk arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
    • H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/251—Learning process for intelligent management, e.g. learning user preferences for recommending movies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4532—Management of client data or end-user data involving end-user characteristics, e.g. viewer profile, preferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/466—Learning process for intelligent management, e.g. learning user preferences for recommending movies
    • H04N21/4667—Processing of monitored end-user data, e.g. trend analysis based on the log file of viewer selections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/466—Learning process for intelligent management, e.g. learning user preferences for recommending movies
    • H04N21/4668—Learning process for intelligent management, e.g. learning user preferences for recommending movies for recommending content, e.g. movies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand

Abstract

The present invention provides a kind of video on-demand system and method, is related to video on demand techniques field, including video server and several clients；Client includes: that the first memory module saves several first video files；First receiving module receives on-demand request；First retrieval module is retrieved according to on-demand request, and the first search result is generated when retrieving the first video file to match, and the second search result is generated when not retrieving；First processing module exports the first video file according to the first search result；Second processing module generates program request file according to the second search result；Video server includes: that the second memory module saves several second video files；Second retrieval module is retrieved according to on-demand request, and the output when retrieving the second video file to match；Second video file is sent to corresponding client and played out by third processing module.The frequent access of video server is effectively avoided, alleviates transmission pressure, promotes viewing experience.

Description

A kind of video on-demand system and method
Technical field
The present invention relates to video on demand techniques field more particularly to a kind of video on-demand system and methods.
Background technique
Video on demand (Video On Demand, VOD) the i.e. abbreviation of video on demand techniques, also referred to as interactive television point It broadcasts, is the product of computer technology, network technology and multimedia technology development, is a completely new information service.VOD is got rid of The constraint that traditional tv is limited by space-time solves the problems, such as that program is one seen and when seen.VOD business can expire The demand of sufficient TV user personalization has gradually become each radio and TV operator at present and has carried out widest interaction value-added service.
The VOD business realizing process that the prior art provides includes: user by remote controller operation set-top box, browses program dish The program that single Selective artery embolization is broadcast；VOD operation system selects corresponding stream pushing server node will according to the identification information of set-top box Program real-time Transmission to the set-top box of user's program request plays out, so that user does not need to be adjusted certainly according to the broadcast time of program The viewing time of body, at any time it can be seen that wanting the program watched.But when mainly concentrating night due to VOD service Section, multiple users send on-demand request to video server simultaneously, and the transmission bandwidth of video server is limited, certainly will influence to use The viewing quality of the request program at family, or even certain customers occur can not be in the progress program request of the peak hours/period of video server, together When video server idle period do not utilize well, significantly impact the program request viewing experience of user.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of video on-demand system, specifically includes: Video service Device, and several clients being connect with the video server；
The client specifically includes:
First memory module, for saving several first video files cached according to preset rules；
First receiving module, for receiving the on-demand request of user；
First retrieval module is separately connected first memory module and first receiving module, for according to On-demand request is retrieved in first memory module, and is retrieving described first to match with the on-demand request Corresponding first search result is generated when video file and is exported, and
It is tied not retrieving and generating corresponding second retrieval when stating first video file that on-demand request matches Fruit simultaneously exports；
First processing module connects first retrieval module, is used for according to first search result, by described first Video file is exported to the broadcasting end connecting with the client and is played out；
Second processing module is separately connected first receiving module and first retrieval module, for according to Second search result and the on-demand request generate corresponding program request file；
The program request file includes the equipment mark of the client of the on-demand request and the reception on-demand request Know.
The video server specifically includes:
Second memory module, for saving several second video files for caching obtain in advance, and second video text Part includes first video file；
Second retrieval module connects second memory module, for asking according to the program request in the program request file It asks and is retrieved in second memory module, and retrieving second video text to match with the on-demand request It is exported when part；
Third processing module connects second retrieval module, for according to the equipment mark in the program request file Know, second video file is sent to the corresponding client of the device identification and is played out.
Preferably, the client further include:
Data statistics module connects first receiving module, for asking to all program requests in preset time period It asks and is counted and generated corresponding program request record sheet；
It include the program request frequency of the corresponding programme information of the on-demand request, the programme information in the program request record sheet And the program request moment of the programme information；
Data analysis module connects the data statistics module, described for being obtained according to program request record table analysis Client corresponds to the viewing hobby feature of user and exports；
Fourth processing module connects the data analysis module, generates accordingly for liking feature according to the viewing Viewing preferences file simultaneously exports；
The viewing preferences file includes the device identification of the viewing hobby feature and the corresponding client.
Preferably, the video server further include:
Third retrieval module connects second memory module, is used for according to the viewing preferences file in described second It is retrieved in memory module, and defeated when retrieving several second video files to match with the viewing preferences file Out；
5th processing module connects the third retrieval module, if will for the idle period in the video server It does second video file and is sent to the client, to be updated to first memory module.
Preferably, further include user terminal, connect the client, asked for sending the program request to the client It asks.
Preferably, the user terminal includes remote controler and/or smart phone and/or tablet computer, and/or is calculated Machine.
A kind of VOD method specifically includes following step applied to video on-demand system described in any of the above one It is rapid:
Step S1, the video on-demand system receive the on-demand request of user；
Step S2, the video on-demand system are deposited in described the first of the corresponding client according to the on-demand request It is retrieved in storage module:
If retrieving first video file to match with the on-demand request, corresponding first retrieval knot is generated Fruit is subsequently diverted to step S3；
If not retrieving and stating first video file that on-demand request matches, corresponding second retrieval knot is generated Fruit is subsequently diverted to step S4；
Step S3, the video on-demand system according to first search result, by first video file export to The broadcasting end connecting with the client plays out, with backed off after random；
Step S4, the video on-demand system generate corresponding point according to second search result and the on-demand request Broadcast file；
The program request file includes the equipment mark of the client of the on-demand request and the reception on-demand request Know；
Step S5, the video on-demand system is according to the on-demand request in the program request file in the Video service It is retrieved in second memory module of device:
If retrieving second video file to match with the on-demand request, step S6 is turned to；
If not retrieving second video file to match with the on-demand request, corresponding retrieval failure is generated Prompt, and be sent to the corresponding client of the device identification and shown, with backed off after random；
Step S6, the video on-demand system are regarded according to the device identification in the program request file by described second Frequency file is sent to the corresponding client of the device identification and plays out.
Preferably, further include the process counted to the hobby of the corresponding user of the client, specifically include:
Step A1, the video on-demand system are counted and are generated to all on-demand requests in preset time period Corresponding program request record sheet；
It include the program request frequency of the corresponding programme information of the on-demand request, the programme information in the program request record sheet And the program request moment of the programme information；
Step A2, the video on-demand system according to the program request records table analysis, and to obtain the client corresponding described Feature is liked in the viewing of user；
Step A3, the video on-demand system like feature according to the viewing and generate corresponding viewing preferences file and defeated Out；
The viewing preferences file includes the device identification of the viewing hobby feature and the corresponding client.
Preferably, after executing the step A3 further include:
Step B1, the video on-demand system are retrieved in second memory module according to the viewing preferences file, And the output when retrieving several second video files to match with the viewing preferences file；
Step B2, the video on-demand system are literary by several second videos in the idle period of the video server Part is sent to the client, to be updated to first memory module.
Above-mentioned technical proposal have the following advantages that or the utility model has the advantages that
1) by the active issuing mechanism of setting video file, frequent visit of the client to video server is effectively prevented It asks, alleviates the transmission pressure of video server；
2) video file issued is updated according to the viewing of user hobby, further improves the viewing body of user It tests.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of video on-demand system in preferred embodiment of the invention；
Fig. 2 is a kind of flow diagram of VOD method in preferred embodiment of the invention；
Fig. 3 is a kind of sub-process schematic diagram of VOD method in preferred embodiment of the invention；
Fig. 4 is a kind of sub-process schematic diagram of VOD method in preferred embodiment of the invention.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present invention is not limited to the embodiment party Formula, as long as meeting purport of the invention, other embodiments also may belong to scope of the invention.
In preferred embodiment of the invention, it is based on the above-mentioned problems in the prior art, a kind of video point is now provided System is broadcast, as shown in Figure 1, specifically including: video server 1, and several clients 2 connecting with video server 1；
Client 2 specifically includes:
First memory module 21, for saving several first video files cached according to preset rules；
First receiving module 22, for receiving the on-demand request of user；
First retrieval module 23 is separately connected the first memory module 21 and the first receiving module 22, for asking according to program request It asks and is retrieved in the first memory module 21, and generate phase when retrieving the first video file to match with on-demand request The first search result for answering simultaneously exports, and
Corresponding second search result is generated simultaneously with when stating the first video file that on-demand request matches not retrieving Output；
First processing module 24 connects the first retrieval module 23, is used for according to the first search result, by the first video file Output to the broadcasting end 3 connecting with client 2 plays out；
Second processing module 25 is separately connected the first receiving module 22 and the first retrieval module 23, for according to the second inspection Hitch fruit and on-demand request generate corresponding program request file；
Program request file includes the device identification of the client of on-demand request and reception on-demand request.
Video server 1 specifically includes:
Second memory module 11, for saving several second video files for caching obtain in advance, and the second video file Including the first video file；
Second retrieval module 12, connect the second memory module 11, for according to the on-demand request in program request file in second It is retrieved in memory module 11, and the output when retrieving the second video file to match with on-demand request；
Third processing module 13 connects the second retrieval module 12, for according to the device identification in program request file, by second Video file is sent to the corresponding client of device identification and plays out.
Specifically, in the present embodiment, by the way that the active issuing mechanism of video file is arranged, rather than passively wait user's On-demand request can efficiently use the idle period of video server 1, promote the broadcasting matter of the order video of program request peak period Amount.Since the hobby of the corresponding user of client 2 is not changeless, remembered by the program request of user in statistics certain period of time It records and is analyzed, the recent hobby feature of user can be grasped in real time, thus according to the hobby feature to the first of client 2 The first video file stored in memory module 21 is updated.Preferably, above-mentioned update include to user for a long time without First video file of program request is replaced and user has watched the first video file finished and deleted, to protect The program request demand that the first video file saved in the first memory module 21 more meets user is held, while effectively promoting program request rate Promote the viewing experience of user.
Further, video server 1 is determining that needs issue to client according to the recent hobby feature of user After second video file, it not will do it and issue in real time, but issued when video server 1 is in idle period, To be not take up the transmission bandwidth of current real-time VOD user, guarantee the viewing quality of current real-time VOD user.
Further, client 2 will not access video server 1 after the on-demand request for receiving user at the first time The reading of progress corresponding video file, but the first local memory module 21 of access client 2 first, if the first memory module The first video file for meeting current on-demand request is preserved in 21, then is directly played out, since first video file is Preparatory cache file, in watching process will not the factors such as, transmission bandwidth deficiency poor due to network quality the problems such as causing Caton, Effectively promote the viewing experience of user；If there is no the first videos for meeting current on-demand request in the first memory module 21 simultaneously File, then client 2 initiates the access request to video server 1, to obtain the video file of corresponding current on-demand request；It is logical This access mechanism is crossed, the access request that can effectively filter out part client 2 has especially in video on demand peak period Effect alleviates the transmission pressure of video server 1.
In preferred embodiment of the invention, client 2 further include:
Data statistics module 26, connect the first receiving module 22, for all on-demand requests in preset time period into Row counts and generates corresponding program request record sheet；
It include the corresponding programme information of on-demand request, the program request frequency of programme information and programme information in program request record sheet The program request moment；
Data analysis module 27 connects data statistics module 26, obtains client pair for recording table analysis according to program request Feature is liked using the viewing at family and is exported；
Fourth processing module 28 connects data analysis module 27, for generating corresponding viewing according to viewing hobby feature Preferences file simultaneously exports；
Viewing preferences file includes the device identification of viewing hobby feature and corresponding client.
In preferred embodiment of the invention, video server 1 further include:
Third retrieval module 14 connects the second memory module 11, is used for according to viewing preferences file in the second memory module It is retrieved in 11, and the output when retrieving several second video files to match with viewing preferences file；
5th processing module 15 connects third retrieval module 13, for the idle period in video server 1 by several the Two video files are sent to client, to be updated to the first memory module 21.
Further include user terminal 4 in preferred embodiment of the invention, connect client 2, for being sent to client 2 On-demand request.
In preferred embodiment of the invention, user terminal 4 includes remote controler and/or smart phone and/or plate electricity Brain and/or computer.
A kind of VOD method, applied to one video on-demand system of any of the above, as shown in Fig. 2, specifically including Following steps:
Step S1, video on-demand system receive the on-demand request of user；
Step S2, video on-demand system are examined in the first memory module of corresponding client according to on-demand request Rope:
If retrieving the first video file to match with on-demand request, corresponding first search result is generated, then Turn to step S3；
If not retrieving and stating the first video file that on-demand request matches, corresponding second search result is generated, with Rear steering step S4；
First video file is exported to client and is connect according to the first search result by step S3, video on-demand system One broadcasting end play out, with backed off after random；
Step S4, video on-demand system generate corresponding program request file according to the second search result and on-demand request；
Program request file includes the device identification of the client of on-demand request and reception on-demand request；
Step S5, video on-demand system is according to the on-demand request in program request file in the second memory module of video server In retrieved:
If retrieving the second video file to match with on-demand request, step S6 is turned to；
If not retrieving the second video file to match with on-demand request, generates corresponding retrieval and unsuccessfully prompt, and It is sent to the corresponding client of device identification to be shown, with backed off after random；
Step S6, video on-demand system are sent to equipment according to the device identification in program request file, by the second video file Corresponding client is identified to play out.
It further include the process counted to the hobby of the corresponding user of client in preferred embodiment of the invention, As shown in figure 3, specifically including:
Step A1, video on-demand system count all on-demand requests in preset time period and generate corresponding point Broadcast record sheet；
It include the corresponding programme information of on-demand request, the program request frequency of programme information and programme information in program request record sheet The program request moment；
Step A2, video on-demand system record table analysis according to program request and obtain the viewing hobby spy of the corresponding user of client Sign；
Step A3, video on-demand system generate corresponding viewing preferences file according to viewing hobby feature and export；
Viewing preferences file includes the device identification of viewing hobby feature and corresponding client.
In preferred embodiment of the invention, as shown in figure 4, after executing step A3 further include:
Step B1, video on-demand system according to viewing preferences file retrieved in the second memory module, and retrieve with Output when several second video files that viewing preferences file matches；
Several second video files are sent to client in the idle period of video server by step B2, video on-demand system End, to be updated to the first memory module.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model It encloses, to those skilled in the art, should can appreciate that and all be equal with made by this specification and diagramatic content It replaces and obviously changes obtained scheme, should all be included within the scope of the present invention.

Claims (8)

1. a kind of video on-demand system, which is characterized in that specifically include: video server, and connect with the video server Several clients connect；
The client specifically includes:
First memory module, for saving several first video files cached according to preset rules；
First receiving module, for receiving the on-demand request of user；
First retrieval module is separately connected first memory module and first receiving module, for according to the program request It requests to be retrieved in first memory module, and is retrieving first video to match with the on-demand request Corresponding first search result is generated when file and is exported, and
Corresponding second search result is generated simultaneously with when stating first video file that on-demand request matches not retrieving Output；
First processing module connects first retrieval module, is used for according to first search result, by first video File is exported to the broadcasting end connecting with the client and is played out；
Second processing module is separately connected first receiving module and first retrieval module, for according to described second Search result and the on-demand request generate corresponding program request file；
The program request file includes the device identification of the client of the on-demand request and the reception on-demand request.
The video server specifically includes:
Second memory module, for saving several second video files for caching obtain in advance, and the second video file packet Include first video file；
Second retrieval module connects second memory module, for according to the on-demand request in the program request file in It is retrieved in second memory module, and when retrieving second video file to match with the on-demand request Output；
Third processing module connects second retrieval module, for inciting somebody to action according to the device identification in the program request file Second video file is sent to the corresponding client of the device identification and plays out.
2. video on-demand system according to claim 1, which is characterized in that the client further include:
Data statistics module connects first receiving module, for all on-demand requests in preset time period into Row counts and generates corresponding program request record sheet；
In the program request record sheet include the corresponding programme information of the on-demand request, the programme information the program request frequency and The program request moment of the programme information；
Data analysis module connects the data statistics module, obtains the client for recording table analysis according to the program request It holds the viewing hobby feature of corresponding user and exports；
Fourth processing module connects the data analysis module, generates corresponding viewing for liking feature according to the viewing Preferences file simultaneously exports；
The viewing preferences file includes the device identification of the viewing hobby feature and the corresponding client.
3. video on-demand system according to claim 2, which is characterized in that the video server further include:
Third retrieval module connects second memory module, for being stored according to the viewing preferences file in described second It is retrieved in module, and the output when retrieving several second video files to match with the viewing preferences file；
5th processing module connects the third retrieval module, for the idle period in the video server by several institutes It states the second video file and is sent to the client, to be updated to first memory module.
4. video on-demand system according to claim 1, which is characterized in that further include user terminal, connect the client End, for sending the on-demand request to the client.
5. video on-demand system according to claim 4, which is characterized in that the user terminal includes remote controler, and/or Smart phone and/or tablet computer and/or computer.
6. a kind of VOD method, which is characterized in that applied to the video on demand as described in any one of claim 1-5 System, specifically includes the following steps:
Step S1, the video on-demand system receive the on-demand request of user；
Step S2, the video on-demand system is according to the on-demand request in the first storage mould of the corresponding client It is retrieved in block:
If retrieving first video file to match with the on-demand request, corresponding first search result is generated, It is subsequently diverted to step S3；
If not retrieving and stating first video file that on-demand request matches, corresponding second search result is generated, with Rear steering step S4；
Step S3, the video on-demand system according to first search result, by first video file export to institute The broadcasting end for stating client connection plays out, with backed off after random；
Step S4, the video on-demand system generate corresponding program request text according to second search result and the on-demand request Part；
The program request file includes the device identification of the client of the on-demand request and the reception on-demand request；
Step S5, the video on-demand system is according to the on-demand request in the program request file in the video server It is retrieved in second memory module:
If retrieving second video file to match with the on-demand request, step S6 is turned to；
If not retrieving second video file to match with the on-demand request, generates corresponding retrieval and unsuccessfully mention Show, and be sent to the corresponding client of the device identification and shown, with backed off after random；
Step S6, the video on-demand system is according to the device identification in the program request file, by the second video text Part is sent to the corresponding client of the device identification and plays out.
7. VOD method according to claim 6, which is characterized in that further include to the corresponding user of the client The process that is counted of hobby, specifically include:
Step A1, the video on-demand system count all on-demand requests in preset time period and are generated corresponding Program request record sheet；
In the program request record sheet include the corresponding programme information of the on-demand request, the programme information the program request frequency and The program request moment of the programme information；
Step A2, the video on-demand system record table analysis according to the program request and obtain the corresponding user of the client Viewing like feature；
Step A3, the video on-demand system are liked the corresponding viewing preferences file of feature generation according to the viewing and are exported；
The viewing preferences file includes the device identification of the viewing hobby feature and the corresponding client.
8. VOD method according to claim 7, which is characterized in that after executing the step A3 further include:
Step B1, the video on-demand system are retrieved in second memory module according to the viewing preferences file, and Output when retrieving several second video files to match with the viewing preferences file；
Step B2, the video on-demand system send out several second video files in the idle period of the video server It send to the client, to be updated to first memory module.
CN201910634070.5A 2019-07-15 2019-07-15 A kind of video on-demand system and method Pending CN110290394A (en)

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