CN103179440B - A kind of value-added service time-shifted television system towards 3G subscription - Google Patents
A kind of value-added service time-shifted television system towards 3G subscription Download PDFInfo
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Abstract
The invention discloses a kind of value-added service time-shifted television system towards 3G subscription, belong to mobile communications network service technology field.Present system comprises time-shifted service module, value-added service service module, playbill data library module, interactive maintenance module; Time-shifted service module is for making time shift audio, video data; Value-added service service module is used for the making of value-added service audio-video frequency content data, excavates that pouplarity is high, valuable video content from time shift video flowing, carries out secondary storage; Playbill data library module is used for generating, administering and maintaining time shift program single database and value-added service playbill data storehouse; Interactive maintenance module in charge and user carry out direct interaction, receive, respond and add up the solicited message from user.The present invention is driven by user and sets up value-added service chain, while the demand better reflecting user and preference, has highlighted the personalization of 3G business and service variation, has extended the value-added service frontier of mobile Internet.
Description
Technical field
The present invention relates to a kind of value-added service time-shifted television system towards 3G subscription, belong to mobile communications network service technology field.
Background technology
In recent years, broadband cable network Stream Media Application achieves tremendous development, based on mobile communications network stream media technology also progressively development come.Along with the develop rapidly of the high speed mobile communication technologies such as 2.5G, 3G and WLAN (wireless local area network) with ripe, the mobile terminals such as various smart mobile phone, PAD are constantly weeded out the old and bring forth the new, and mobile phone value-added service market is also in the application service field that constantly developing is new.The diversified individual service of continuous pursuit, mobile phone terminal mobility feature brings the variation of watching habit, and the live broadcast service in traditional mobile flow medium and demand (telecommunication) service cannot meet the characterization demand of user.Meanwhile, based on the reaching its maturity of network time-shifted television technology of the Internet, the diversified value-added service of opening up mobile flow medium market for us provides new approaches.
In stream media network, time-moving television has hewed out a brand-new TV service platform, rating right of freedom is delivered and gives user, and user is no longer by the restriction of program broadcasting time, can watch according to the time of oneself TV programme missed completely, and arbitrary F.F., rewind.But for features such as the mobility of intelligent mobile phone terminal user and the limitation of smart machine self, existing time-moving television service cannot well meet multiplicity of subscriber demand.Based on the mobile flow medium time-moving television that 3G subscription drives, just under such demand environment, a kind of time-moving television implementation designed from the angle of the practicality of user and flexibility.
At present, in the time-moving television service process of mobile subscriber, lack by the flexibility of user-driven and diversity, user can only the video file that provides of passive reception server; User's accessing video data, are independently generated by server completely, do not consider watching habit and the preference of user; Meanwhile, lack the service system of the higher video of a kind of user oriented popularity degree, experience with the personalized service improving user.
Summary of the invention
Technical problem to be solved by this invention is the deficiency overcoming existing mobile communication time-shifted television system, a kind of value-added service time-shifted television system towards 3G subscription is provided, based on mobile flow medium time-shift service, by statistics, the analysis and synthesis of the Behavior preference of the access history to mobile subscriber, current accessed situation and user, excavate and there is higher access temperature coefficient, valuable video content, generate increment video, for user provides more abundant mobile personalized service.
Value-added service time-shifted television system towards 3G subscription of the present invention, comprises time-shifted service module, value-added service service module, playbill data library module, interactive maintenance module; Described time-shifted service module is for making time shift audio, video data; Described value-added service service module is used for the making of value-added service audio-video frequency content data, excavates that pouplarity is high, valuable video content from time shift video flowing, carries out secondary storage; Described playbill data library module is used for generating, administering and maintaining time shift program single database and value-added service playbill data storehouse; Described interactive maintenance module in charge and user carry out direct interaction, receive, respond and add up the solicited message from user.
1, described increment
Business service module comprises local value-added service playbill data storehouse, value-added service service module adopts the method for self study to make value-added service audio-video frequency content data, specific as follows: value-added service service module first carries out self study after receiving the user's acess control analytical information from interactive maintenance module, to search in local value-added service playbill data storehouse whether containing the video content that the visit information provided with interactive maintenance module matches, the access temperature coefficient provided in i.e. interactive maintenance module is greater than the program of the threshold value preset, the access temperature coefficient of described program is the access times of this program and the ratio of total access times in one-period, if no, in local value-added service playbill data storehouse, just increase the project of this program, the time shift video data stream of this program is read in value-added service service module from time-shifted service module simultaneously, generate value-added service video content, if had, then upgrade the life span of this program in local value-added service playbill data storehouse, after have updated local value-added service playbill data storehouse, value-added service service module needs new value-added service programme to submit to playbill data library module, for refreshing the value-added service programme in playbill data storehouse.
In described value-added service playbill data storehouse, the lifetime value of program adopts ZiPf law to calculate acquisition: first, increment program is carried out descending according to its temperature coefficient value size; Next, use ZiPf law calculate each program in sorted lists certain moment following by next user the probable value of accessing; Then, be multiplied by this probable value with maximum lifetime, add two default basic life spans: the basic life span of time shift and the basic life span of increment, arrange the life span of an increment program.
Compared with existing implementation, positive effect of the present invention is:
From the angle of user, give the sufficient flexibility of mobile subscriber and free space, driven by user and set up value-added service chain, excavate potential high value video resource, while the better reflection demand of user and preference, highlight the personalization of 3G business under the new situation and service variation, extend mobile Internet value-added service frontier.
Accompanying drawing explanation
Fig. 1 is the module map of the value-added service time-shifted television system towards 3G subscription in the specific embodiment of the invention;
Fig. 2 is an implementation schematic diagram of time-shifted service module of the present invention;
Fig. 3 is an implementation schematic diagram of value-added service service module of the present invention;
Fig. 4 is an implementation schematic diagram of playbill data library module of the present invention;
Fig. 5 is an implementation schematic diagram of interactive maintenance module of the present invention;
Fig. 6 is the signal processing flow figure of the video frequency collection card adopted in the specific embodiment of the invention;
Fig. 7 is the workflow schematic diagram of the value-added service time-shifted television system towards 3G subscription of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail:
Because programme televised live cannot well cater to all spectators user from the time, network direct broadcasting comprises the live or program request of mobile network for mobile subscriber, comprehensively cannot portray the preference of user and the pouplarity to a certain programme content.For this reason, value-added service time-shifted television system towards 3G subscription of the present invention, based on mobile flow medium time-shift service, by statistics, the analysis and synthesis of the Behavior preference of the access history to mobile subscriber, current accessed situation and user, excavate and there is higher access temperature coefficient, valuable video content, generate increment video, for user provides more abundant mobile personalized service.
Value-added service time-shifted television system towards 3G subscription of the present invention, its overall implementation is as follows:
This system comprises time-shifted service module, value-added service service module, playbill data library module, interactive maintenance module.
Described time-shifted service module, for making time shift audio, video data, comprises and gathers submodule, encoding submodule, sub module stored and renewal submodule.
In above-mentioned time-shifted service module, described collection submodule is responsible for the reception collection of broadcasting and TV direct broadcast television signals; Gather submodule by video frequency collection card access real-time live broadcast TV signal, generate continuously and the YUV2 video format of uncompressed and pcm audio format digital video/audio after video frequency collection card process, and by it stored in the collection buffer memory of internal memory, for follow-up, the operations such as code storage are carried out to this audio-video signal, complete video acquisition process; Gather the capture program round-the-clock running in submodule, to ensure the normal Real-time Collection of video frequency collection card; Data in buffering area, should delete in time after being read.
In above-mentioned time-shifted service module, described encoding submodule completes and the digital video-audio data collected is carried out coded treatment, down redundant data, saves memory space and transmission bandwidth; Use coded program, to being stored in the digital YUV2 video, the pcm audio data that collect in shared drive, to carry out hardware encoding be the video format of MPEG4 and the audio format of AAC, stored in coding module buffering area in shared drive, read for memory module below; Data in buffering area, should delete in time after being read.
In above-mentioned time-shifted service module, described sub module stored is used for the MP4 video data after by coding and is stored in the disk unit of specifying this locality, and sets up index structure, generates time shift video library; Run the storage program in sub module stored, from the code cache of shared drive, read the MP4 audio, video data after coding, under being stored in the designated store path of local disk; The storage of MP4 audio, video data according to: " root/channel/program play date/program play times-burst number. file format (MP4) " catalogue format store; Described video file burst, carries out burst according to the fixed size of a TS data flow, and the file size of each burst is 188 bytes, and is stored as a storage cell by several bursts; Described index structure is under data are stored in the index list of specifying of sub module stored in a binary format, is divided into channel, date, program play times, burst number and key frame of video five levels; When reading the data after coding, sub module stored once reads the audio, video data of several coding units, instead of reads in real time; Sub module stored gives time shift audio, video data life span of each storage, will be automatically left out beyond time-shifted service week this video source of after date.
In above-mentioned time-shifted service module, described renewal submodule is for upgrading the time shift video content stored in time shift memory disk; Described more New function comprises the operations such as the deletion of the newly-increased of the video content of storage and aging video content; Newly-increased operation, by the video frequency collection card Real-time Collection of round-the-clock running, being read by time shift sub module stored after encoding submodule coding under the memory disk catalogue of specifying, stores according to storage rule; Deleting submodule to be responsible for deleting storing time shift audio frequency and video aging in time disk, abdicating amount of physical memory; After performing the program of deletion action, the property value of each audio-video document of scanning of program meeting regular (as morning every day), namely be creation-time, current computer system time, difference for system time and creation-time exceedes video file and the file of given time-shifted service time cycle, and this video file will be deleted by delete program; Disk space management program is responsible for reclaiming and is managed the disk space abdicated, and for the storage of newly-increased time shift video content, improves the utilance of disk space.
Described value-added service service module is used for the making of value-added service audio-video frequency content data, excavates that pouplarity is high, valuable video content from time shift video flowing, carries out secondary storage, for user provides diversified personalized service.The acquisition of value-added service audio-video frequency content adopts the method for self study to obtain: run value-added service service module program, first self study is carried out after often receiving the user's acess control analytical information from interactive maintenance module, search the local value-added service playbill data storehouse of value-added service service module, the video content that the program with or without each high access temperature coefficient value provided with interactive maintenance module matches; If no, just in value-added service local program single database, increase a programme project, under time shift video data stream being read value-added service local disk path, generate value-added service video content simultaneously; If had, this locality increment programme project is upgraded, main renewal program life span value field.After have updated value-added service programme, value-added service service module needs playbill data library module to be submitted in this programme, for refreshing value-added service programme in playbill data storehouse.
In above-mentioned value-added service service module, the detailed step that described self-learning method makes value-added service video is: the value-added service service module program of operation, accept the statistical analysis information from the Periodic user visit capacity of interactive maintenance module, this information comprises: channel, broadcasting date and time, access temperature coefficient value, the life span of value-added service program, the information such as refresh counter of rising in value of time shift program (or value-added service program); After receiving this regular statistical analysis letter, carry out following steps: verify each statistical analysis information project item by item, if not this program in increment playbill data storehouse originally, then this programme project is added in local increment playbill data storehouse, and give this program a life span according to access coefficient value, increment refresh counter assignment is 1, read corresponding time shift video content and under writing the designated store path of local value-added service disk, storage rule defers to sub module stored simultaneously; If there is this programme project in local value-added service playbill data storehouse, then recalculate a new lifetime value according to the access temperature coefficient value of this project and old TTL field value, to extend this program life span, increment refresh counter increases by 1; For the video that the refresh counter that rises in value in continuous two basic life spans does not upgrade, then the programme of this video file and program video content are deleted.
In above-mentioned value-added service service module, the life span of described value-added service program is for marking the memory time of this program in value-added service local disk; The life span ttl value of program adopts ZiPf law to calculate and obtains; Value-added service playbill data carries out descending according to the access temperature coefficient value of each program to all increment programs, for K program in rank, use ZiPf law calculate this program by next user the probable value size of accessing; Maximum lifetime TTL is multiplied by by this probable value
max, add two basic life spans: the basic life span of time shift and the basic life span of increment, in this, as the lifetime value of a program; Maximum lifetime TTL
maxbe set to the size of five basic lifetime value of increment.
The information such as in above-mentioned value-added service service module, described local value-added service programme project comprises program channel number, plays date and time, the creation-time of programming access temperature coefficient value, increment refresh counter, program lifetime value, program.
Described playbill data library module with generation, administer and maintain time shift program single database and value-added service playbill data storehouse; By running programme production process, live television channel electric program guide is downloaded from website, resolve this programme and extract useful information, comprising: channel name, date, program start time and program end time, programm name, be stored in local disk equipment with the form of list data; Described value-added service playbill data storehouse, according to the increment programme information that value-added service service module is submitted to, generates the increment programme of playbill data library module and is stored in local disk equipment; Aging programme items information in time shift program single database, needs to delete to after date in the time-shifted service cycle, if there is new time-shifted contents to need to add, then upgrades time shift memory disk after should first upgrading time shift program single database; Increment playbill data storehouse then only needs the increment programme information upgraded according to the increment programme information of value-added service service module submission in program database, namely completes the deletion work of increment program database in the process.
Described interactive maintenance module as proxy program, the interactive access work between completing user and background server, simultaneously monitoring and statistics analyze the visit information of user, the making for value-added service video provides theoretical values basis; Interactive maintenance module in charge and user carry out direct interaction, receive the various solicited messages from user, comprise: the request of time shift program list, the request of value-added service programme, the request of time shift video content, the request of value-added service video content, respond the above-mentioned various request of user simultaneously; Interactive maintenance module as a proxy program, after receiving the solicited message of user, by interactive maintenance module completing user solicited message inquiry and read in the shared buffer of interactive maintenance module, finally user's request content of reading is fed back to user; Described interactive maintenance module in charge and backstage modules carry out alternately, complete alternately with playbill data library module inquire about, the entry read in playbill data, complete inquiry and the reading of time shift video content alternately with time-shifted service module, complete value-added service video content alternately with value-added service service module and inquire about and read; Interactive maintenance module, while reading increment video frequency program, needs all properties information recording this increment program, refreshes the access temperature coefficient value of this increment video simultaneously; Described interactive maintenance module is within each measuring period, monitoring and statistics user to each time shift program or increment program access, record its access times and all access times in this cycle, when in monitoring periods, namely the access times of certain video and the ratio of total access times are some, the access temperature coefficient of video shift, reflects the pouplarity of certain video content; ; At the end of each monitoring periods, for the programming statistics information being greater than the threshold value that system presets, submit to value-added service service module by interactive maintenance module.
In above-mentioned interactive maintenance module, described user access information, namely be the monitoring and statistics information submitting to value-added service service module, mainly comprise: program channel number, program play date and reproduction time, programm name, the access temperature coefficient value of program, the time shift store path information etc. of programme content.
Described towards in the time shift value-added service television system implementation of 3G subscription, memory device is hard disk; Man Machine Interface for completing user, background function module and interactive maintenance module comprises keyboard, mouse, sound card, display, pci interface and network interface; Described network interface comprises Ethernet interface, WLAN interface.
Described towards in the time shift value-added service television system implementation of 3G subscription, the issue of programme content adopts P2P transmission means, by network interface for user provides personalized Video service; By network interface, the time shift program information table data of all program channels in 7 days time-shifted service cycle of playbill data library module record, thinks that client user provides programme information.
Described towards in the time shift value-added service television system implementation of 3G subscription, central processing unit is for performing the program's source code of modules, and internal memory is for loading the program's source code of modules; Described television acquisition card, digital coding card, memory device, network interface and interpersonal interactive interface are all communicated with internal memory with central process by pci bus.
For the ease of public understanding, with a specific embodiment, technical scheme of the present invention is described in detail below.
As shown in Figure 1, the value-added service time-shifted television system towards 3G subscription of the present invention comprises: interactive maintenance module 100, playbill data library module 110, time-shifted service module 120, value-added service service module 130.Interactive maintenance module 100 as proxy program, the interactive agent work between load demand and background video module; Playbill data module 110 is responsible for time shift program list, the making of increment video frequency program list and maintenance; Time-shifted service module 120 for making time shift video content, the collection of video shift when completing, coding, the sequence of operations such as storage and renewal; Value-added service service module 130 completes the making of value-added service video content, the operations such as the discovery, the temperature video secondary that comprise the video that rises in value store, the updating maintenance of increment video.
Fig. 2 is an implementation schematic diagram of time-shifted service module of the present invention, mainly comprises: central processing unit 200, internal memory 210, bus 220, video acquisition 230, Video coding 240, memory device 250, network interface 260, Man Machine Interface 270; Wherein, memory modules loads main routine processes module as required, comprising: video acquisition program 211, video coding program 212, video storage program 213, video refresh routine 214.
In the embodiment shown in Figure 2, the making of time shift video content is specially: start, internal memory 210 loads time shift video acquisition program 211, then central processing unit 200 performs time shift video acquisition program 211, start video frequency collection card 230 pairs of direct broadcast television signals and carry out Real-time Collection, by bus 220 the original audio, video data collected is temporarily stored in the time shift video acquisition buffer memory in internal memory, waits for the operations such as follow-up code storage; Load after capture program, and then internal memory 210 loads video coding program 212, central processing unit 200 performs video coding program 212, start hardware encoding card, coded treatment is carried out to the original audio data PCM, the video data YUV2 that gather in buffer memory, audio, video data after coding buffers in the code cache in internal memory by bus 220, in order to follow-up stores processor; When after loading coded program some clock cycle, internal memory 210 starts to load video storage program 213, central processing unit 200 then performs video storage program 213, there is provided time shift program list information according to playbill data library module, the audio, video data in code cache is stored in corresponding memory device 250 according to given index structure; For the time shift video content made, need to carry out real-time renewal rewards theory, comprise: the interpolation of time shift video content recently and the deletion of aging time shift video content, internal memory loads 214 video refresh routines, under being responsible for adding time shift video content recently to appointment hard disk catalogue according to the index structure of regulation, monitoring the life cycle of each video and aging time shift looked content deletion.
Memory device 250 is jumbo hard disks, for preserving the software module data of Long-Time Service, and mainly electronic programming monofile, time shift video content, value-added service video content, each program module data file etc.Network interface 240 is exactly one piece of Ethernet card, can be connected to local area network (LAN) by this network; By network interface, the web download of electronic program list, mutual etc. with user can be carried out.Man Machine Interface 250 comprises mouse, keyboard, display etc., can carry out the mutual of operator and software module, thus complete each operation task of management server by this machine mouth.
Fig. 3 is an implementation schematic diagram of value-added service service module of the present invention, mainly comprises: central processing unit 300, internal memory 310, bus 320, memory device 330, network interface 340, Man Machine Interface 350; Wherein, memory modules loads main routine processes module as required: increment video acquisition program 311, increment video storage program 312, increment programme production process 313, increment video refresh routine 314.
In the embodiment shown in fig. 3, the making of value-added service video content is specially: start, internal memory 310 loads increment video acquisition program 311, then central processing unit 300 performs increment video acquisition program 311, according to user's acess control information that the interactive maintenance module received provides, filtered out the time shift video frequency program with high access temperature coefficient by self study; Then, internal memory 310 loads increment video storage program 312, central processing unit 300 performs video coding program 312, is read in hard disk storage devices corresponding to value-added service by the video content meeting value-added service requirement by bus 320, completes the manufacturing process of increment video content; After completing the storage of increment video, internal memory 310 loads increment programme production process 313, central processing unit 300 performs video storage program 313, according to the time shift program information filtered out, generate local increment programme information, increment programme packets of information contains: program channel number, play the information such as creation-time of date and time, programm name, lifetime value, programming access temperature coefficient value, increment refresh counter, program; Often receive the statistical information that interactive maintenance module is submitted to, the self study renewal rewards theory of just once rise in value video content and increment programme later, and will aging value-added service video be deleted.
Fig. 4 is an implementation schematic diagram of playbill data library module of the present invention, mainly comprises: central processing unit 400, internal memory 410, bus 420, memory device 430, network interface 440, interpersonal interactive interface 450; Wherein, memory modules loads main routine processes module as required and comprises: time shift program one way sequence 411, increment programme program 412, programme refresh routine 413; Playbill data library module safeguards a up-to-date video frequency program single database, for the access of interactive maintenance module; Playbill data library module needs to carry out synchronous with the local program list of value-added service service module in real time, to guarantee that the increment programme in playbill data module is up-to-date.
In the embodiment shown in fig. 4, internal memory 410 loads time shift program one way sequence 411, then central processing unit 400 performs programme instruction, up-to-date live television programming list is downloaded from the Internet by network interface 440, resolve this programme, extract the programm name in programme, program play date and time, the information such as program channel number, and be kept at the designated store catalogue of playbill data library module with the form of xml under; Simultaneously, internal memory 410 loads value-added service programme program 412, then central processing unit 400 performs increment programme instruction, real-time, interactive is carried out by the programme that rises in value of bus 420 and this locality of value-added service service module, this locality increment of value-added service service module is after programme often upgraded, increment programme in program data library module also carries out corresponding refresh operation, thus ensures the realtime uniform of two increment programmes; For existing programme, internal memory 410 loads programme refresh routine 413, and central processing unit 400 performs programme and upgrades instruction, completes the renewal rewards theory of time shift program list with increment programme; For the renewal of time shift program list, mainly add new programme information, the programme information beyond the time-shifted service cycle is then deleted, maintain a up-to-date time shift program single database; The renewal rewards theory of increment programme, the programme that needs to rise in value with this locality of value-added service service module in real time carries out synchronous interaction, to rise in value program unit benchmark, upgrade the value-added service program content in programme stack room with this locality of value-added service service module.
Fig. 5 is an implementation schematic diagram of interactive maintenance module of the present invention, mainly comprises: central processing unit 500, internal memory 510, bus 520, memory device 530, network interface 540, interpersonal interactive interface 550; Wherein, memory modules loads main routine processes module as required and comprises: foreground interactive program 511, backstage interactive program 512, acess control program 413; Interactive maintenance module, as an intermediary sevices module, is responsible for carrying out service request with user alternately, is comprised the various solicited messages receiving and respond user; Interactive maintenance module, as user agent module, is carried out alternately with the programme on backstage, video source module, obtains the various service content of user's request.
In the embodiment shown in fig. 5, internal memory 510 loads foreground interactive program 511, and then central processing unit 500 performs programme instruction, and interactive maintenance module enters operating state, waits for the solicited message from user; If user's request is programme information, the programme type of interactive maintenance module analysis request, inquire about to playbill data library module by bus 520 and reads corresponding programme information, and by the result feedback inquired to asking user; If user's request is video content information, the video type of interactive maintenance module analysis request, by bus 520 to corresponding video source module inquiry video address information, read by the video content inquired in the buffer memory of interactive maintenance module, right rear line sends corresponding video content; Internal memory 510 loads backstage interactive program 512, and then central processing unit 500 performs backstage interactive instruction, completes interactive maintenance module to the inquiry of information of backstage playbill data library module, video source module and the read operation of content; When carrying out mutual with background module, internal memory 510 loads acess control program 513, then central processing unit 500 performs acess control instruction, by total access amount counter and particular content counter, count the access times of total access times in the nearest work period and concrete video content respectively, generate the access temperature coefficient value of concrete video content, and when the work period of correspondence expires, the acess control result being greater than systemic presupposition heat degree threshold is submitted to value-added service service module.
Fig. 6 is the signal processing flow figure of video frequency collection card in embodiment.The video frequency collection card adopted in the present embodiment is depending on being full of the stream medium audio and video capture card of SVC404E, support four tunnels independently video and audio acquisition process, support stream media format MPEG-4, recording H.264 etc., support preservation and the timed recording of the files such as 3GP, MP4; In this example, video frequency collection card uses compound (BNC) interface input television audio and video signals, after process, exports YUV2 video data and the pcm audio data of uncompressed.
Fig. 7 is workflow diagram of the present invention.The complete course of work is: first (1) user submits time shift program solicited message to interactive maintenance module by intelligent terminal; (2) interactive maintenance module receives after user asks letter, resolves, determines the information type that user asks, and send programme information inquiry operation to playbill data library module to this solicited message; (3), after interactive maintenance module polls to target programme letter, this programme information is read in the local cache of interactive maintenance module; (4) interactive maintenance module carries out analysis and arrangement to the programme information in local cache, is reorganized into the communication data format of regulation, by this programme information feed back to user; (5) after user obtains the time shift program list of asking, according to the hobby of oneself, select oneself interested time shift video content, then submit the time-shifted contents solicited message of user to interactive maintenance module; (6) interactive agent module receives the request signal of user, resolves this solicited message, determines the information on services type that user asks, and submits time-shifted contents request command to time-shifted service module; (7) storage directory of interactive maintenance module polls time-shifted service module, after inquiring target video content, continues this video content to read in the local buffer of interactive maintenance module; (8) interactive maintenance module by the video content in local buffer according to certain stream format constant feedback user; (9) while providing time shift video content services to user, interactive maintenance module is added up and is recorded the access behavior of user, be included in all users in a measurement period total access times and each within this access cycle time video shift concrete access times, the access temperature coefficient value of video shift when generating each, and filtering out the time video shift of accessing temperature coefficient value and being less than the heat degree threshold that system presets, the statistical information this satisfied condition when this end cycle submits to value-added service service module; (10) after value-added service service module receives the acess control information of interactive maintenance module, in conjunction with corresponding playbill data, this acess control information is resolved, filter out the time shift video content of high access temperature coefficient, and from time video shift store path this video content is read the store path of this value-added service video under; (11) after filtering out value-added service video, value-added service service module is by local value-added service programme corresponding with value-added service video content for generation one, after completing the making of all value-added service videos, playbill data library module will be submitted to value-added service programme, complete the last making of value-added service programme; (12) a certain moment, user sends value-added service programme solicited message to interactive maintenance module; (13) interactive maintenance module receives after user asks letter, resolves, determines the information type that user asks, and send programme information inquiry operation to playbill data library module to this solicited message; (14), after interactive maintenance module polls to target programme letter, this programme information is read in the local cache of interactive maintenance module; (15) interactive maintenance module carries out analysis and arrangement to the programme information in local cache, is reorganized into the communication data format of regulation, by this programme information feed back to user; (16) after user obtains the value-added service programme of asking, according to the hobby of oneself, select oneself interested value-added service video content, then submit the value-added service content request message of user to interactive maintenance module; (17) proxy module receives the solicited message of user, resolves this solicited message, determines the information on services type that user asks, and submits time-shifted contents request command to value-added service service module; (18), after interactive maintenance module polls to target video content, this value-added service video content is continued to read in the local buffer of interactive maintenance module; (19) interactive maintenance module by the video content in local buffer according to certain stream format constant feedback user.
Claims (5)
1. towards a value-added service time-shifted television system for 3G subscription, it is characterized in that, comprise time-shifted service module, value-added service service module, playbill data library module, interactive maintenance module; Described time-shifted service module is for making time shift audio, video data; Described value-added service service module is used for the making of value-added service audio-video frequency content data, excavates that pouplarity is high, valuable video content from time shift video flowing, carries out secondary storage; Described playbill data library module is used for generating, administering and maintaining time shift program single database and value-added service playbill data storehouse; Described interactive maintenance module in charge and user carry out direct interaction, receive, respond and add up the solicited message from user;
Described value-added service service module comprises local value-added service playbill data storehouse, value-added service service module adopts the method for self study to make value-added service audio-video frequency content data, specific as follows: value-added service service module first carries out self study after receiving the user's acess control analytical information from interactive maintenance module, to search in local value-added service playbill data storehouse whether containing the video content that the visit information provided with interactive maintenance module matches, the access temperature coefficient provided in i.e. interactive maintenance module is greater than the program of the threshold value preset, the access temperature coefficient of described program is the access times of this program and the ratio of total access times in one-period, if no, in local value-added service playbill data storehouse, just increase the project of this program, the time shift video data stream of this program is read in value-added service service module from time-shifted service module simultaneously, generate value-added service video content, if had, then upgrade the life span of this program in local value-added service playbill data storehouse, after have updated local value-added service playbill data storehouse, value-added service service module needs new value-added service programme to submit to playbill data library module, for refreshing the value-added service programme in playbill data storehouse.
2. as claimed in claim 1 towards the value-added service time-shifted television system of 3G subscription, it is characterized in that, in described value-added service playbill data storehouse, the lifetime value of program adopts ZiPf law to calculate acquisition: first, increment program is carried out descending according to its temperature coefficient value size; Next, use ZiPf law calculate each program in sorted lists certain moment following by next user the probable value of accessing; Then, be multiplied by this probable value with maximum lifetime, add two default basic life spans: the basic life span of time shift and the basic life span of increment, arrange the life span of an increment program.
3. as claimed in claim 2 towards the value-added service time-shifted television system of 3G subscription, it is characterized in that, described maximum lifetime is set to rise in value five times of basic life span.
4. as claimed in claim 1 towards the value-added service time-shifted television system of 3G subscription, it is characterized in that, the programme items in described local value-added service playbill data storehouse comprises program channel number, plays date and time, the creation-time of programming access temperature coefficient value, increment refresh counter, program lifetime value, program.
5. as claimed in claim 1 towards the value-added service time-shifted television system of 3G subscription, it is characterized in that, described time-shifted service module comprises collection submodule, encoding submodule, sub module stored and renewal submodule; Described collection submodule is responsible for the reception collection of broadcasting and TV direct broadcast television signals; The video/audio that described encoding submodule is used for collection submodule collects carries out coded treatment; Described sub module stored is used for the video/audio after by coding and is stored in the disk unit of specifying this locality, and sets up index structure, generates time shift video library; Described renewal submodule is for upgrading the time shift video content in time shift video library.
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| EP3323054A1 (en) * | 2015-07-16 | 2018-05-23 | Inscape Data, Inc. | Prediction of future views of video segments to optimize system resource utilization |
| CN105915488A (en) * | 2015-11-02 | 2016-08-31 | 乐视致新电子科技（天津）有限公司 | Ringtone list configuration method and device |
| CN105915430A (en) * | 2015-11-09 | 2016-08-31 | 乐视致新电子科技（天津）有限公司 | Method for updating ringtone material list based on user feedback and device thereof |
| CN109905720B (en) * | 2019-02-26 | 2021-04-09 | 北京工业大学 | Cache replacement method based on video-on-demand system under named data network |
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| CN101291425A (en) * | 2008-06-17 | 2008-10-22 | 中兴通讯股份有限公司 | Method and system realizing content dynamically publishing based on hotness of user's demand |
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