CN101052119A - Control method, device and use for video frequency ordering - Google Patents
Control method, device and use for video frequency ordering Download PDFInfo
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Abstract
The method comprises: 1) receiving the user's program-ordering request; 2) according to the user's message, estimating the user's class; 3) according to the user's class, making control for the order. The invention also reveals a video program ordering apparatus comprises: a strategy data unit, a strategy selection unit, a calculation unit, a reception control unit, a rate regulation unit, a forced-termination unit, a billing control unit. Said acceptance control unit is used in deciding if the order request of user will be accepted according to the output wideband calculated by the calculation unit. The invention can satisfy the needs of different users. The invention also reveals a system thereof.
Description
Technical field
The present invention relates to video on-demand system, relate in particular to a kind of control method, device and application of video request program.
Background technology
Along with the fast development of broadband services, VoD (video request program) obtains application more and more widely.The appearance of VoD makes that the user can be by the access to netwoks ordering server, according to individual's hobby or need program request such as TV, and film, the various programs of music or amusement.The user needn't observe traditional timetable, for example is sitting in to wait for that certain wants the TV programme of seeing before the television set.The user only need open client terminal just can directly click the program that hope is watched.And the user need not be disturbed by the advertisement in the traditional tv system, realizes being grasped by the user initiative of acquired information fully.VoD makes the user change into initiatively or mutual receive mode from passive receive mode.
Referring to Fig. 1, the VoD system generally is made up of three parts: VoD server, transmission network and client.The VoD server is the core part of VoD system, is used for audio, video data is compressed, stores and handles the transmission of realization audio, video data and shared.The function of transmission network provides the real-time Transmission of audio, video data, and audio, video data is sent to user client.Client is finished to the decoding playing function of request program and to the selection of program, various controlled function such as records.The current client that mainly contains two kinds of forms, a kind of is exactly common PC, and another adopts television set to add the mode of set-top box.
The outlet bandwidth of VoD server is limited, along with VoD user's increase, needs that simultaneously treated order program service is also corresponding to be increased.Therefore, the outlet bandwidth of vod server will become the bottleneck place of System Expansion.VoD server process performance is directly connected to the service ability of system, therefore is necessary each VoD user's order request is carried out the control of program request speed, to limit the outlet bandwidth that it takies.
Application number is 200410065742.9, and denomination of invention discloses a kind of acceptance controlling method of video on-demand system for the patent of invention of " adaptive admission controlling method based on measurement of video on-demand system ".This method comprises, according to decode rate visit is divided into different service types; The probability quantile that every class visit shifts to an earlier date or precompute the normal average bandwidth of its single stream and such service; A new service request arrives, calculate all categories when the prior probability quantile, and such expected probability quantile; If what every class was served works as the prior probability quantile all greater than the expected probability quantile, then admit, otherwise show server overload, exclude.
Above-mentioned prior art is applicable to the admittance control of video on-demand system, though can realize the admittance control of video on-demand system, there is following several respects deficiency in above-mentioned video on-demand system based on the adaptive admission controlling method of measuring:
1, admit the accuracy of control not high.Prior art is based on probability calculation, and every class is visited in advance or precomputed the normal average bandwidth of its single stream, because can there be certain error in calculating, thereby according to calculating judgement admittance control, admits the very difficult assurance of accuracy of control.
2, each demand (telecommunication) service all uses fixing program request speed, can not satisfy different client's needs.
3, be subjected to the restriction of VoD server outlet bandwidth, user's access rate can not obtain further raising.
Summary of the invention
The control method that the purpose of this invention is to provide a kind of video request program, each demand (telecommunication) service all uses fixing program request speed in the prior art to overcome, and can not satisfy different client's needs.
Another object of the present invention provides a kind of control method of video request program, comprises step:
1). receive user's order request;
2). judge user gradation according to user profile;
3). according to user gradation, carry out program request control.
Described step 2) user gradation is a Three Estate in:
The A class user: no program request speed guarantees, could obtain video-on-demand service when the ordering server load is light;
B class user:, k kind program request speed is arranged for demand (telecommunication) service;
The C class user: for demand (telecommunication) service, the program request speed c of administration of fixed;
Wherein, the quantity of the optional program request speed of k:B class user;
The constant program request speed of c:C class user.
Described step 3) is specially:
If a) the demand (telecommunication) service requestor is the A class user:
When a+U＜N, accept this order request; Otherwise, refuse this order request;
B) if the demand (telecommunication) service requestor is the B class user:
When U≤N, accept this order request, adopt maximum program request speed b
1
As U＞N, U+b
kDuring≤M, accept this order request, adopt minimum program request speed b
k
C) if the demand (telecommunication) service requestor is the C class user:
When U+c≤M, accept this order request, adopt constant program request speed c;
Wherein, the quantity of the optional program request speed of k:B class user;
The program request speed of a:A class user;
b
i: B class user i possible program request speed, the scope of i is 1≤i≤k, i is more little, then b
iBig more;
Wherein, the constant program request speed of c:C class user;
The maximum outlet bandwidth that the M:VoD server is total;
The current outlet bandwidth value of having used of U:VoD server;
N: outlet bandwidth threshold value.
Described step 3) is specially:
When the ordering server outlet bandwidth is nervous, stop all by force just in the order program service of the A of program request class user, discharge the outlet bandwidth that they take.
Described ordering server outlet bandwidth anxiety is specially,
The current outlet bandwidth numerical value that has used of ordering server is greater than ordering server outlet bandwidth threshold value.
Described B class user comprises,
Common B class user: when the ordering server load is light, give maximum program request speed b
1, when ordering server load is big, is adjusted into more point and broadcasts speed b
i, b wherein
kProgram request speed minimum, b
iProgram request speed is between b
1With b
kBetween;
Wherein, i=1,2.....k;
Privilege B class user: the authority of grabbing resource is arranged; This grade user is in request during demand (telecommunication) service, and when the ordering server outlet bandwidth is not enough, the premature termination common B grade of not served is or/and the user's of common C grade demand (telecommunication) service by force;
Described C class user comprises,
Common C class user: for demand (telecommunication) service, the program request speed c of administration of fixed;
Privilege C class user: the authority of grabbing resource is arranged; If the ordering server outlet bandwidth is not enough, the premature termination common B grade of not served is or/and the user's of common C grade demand (telecommunication) service by force.
Described step 3) is specially:
When the ordering server outlet bandwidth is not enough, the prerogative grade user sends the order program service request, according to predetermined degradation strategy, reduce the program request speed of the B class user of program request, and/or according to the predetermined strategy of termination by force, stop common grade user demand (telecommunication) service, or refuse this order request;
When the ordering server outlet bandwidth was not enough, common grade user sent the order program service request, according to predetermined degradation strategy, reduce program request the B class user program request speed or refuse this order request.
Described step 3) is specially:
If the demand (telecommunication) service requestor is the B class user, work as U+b
kDuring＞M, reduce, discharge enough outlet bandwidths, accept this order request and adopt minimum program request speed b just in the program request speed of the B of program request class user
k
If can't discharge enough outlet bandwidths,, then refuse this order request for common B class user;
Work as U+b
k＞M, common B class user sends order request, just in one or the program request speed of most individual B class users of program request, discharges enough outlet bandwidths by reduction, accepts this order request and adopts minimum program request speed b
kOtherwise, refuse this order request;
Work as U+b
k＞M, privilege B class user sends order request, by just reducing program request speed at one or most B class users of program request, in the time of can't discharging enough outlet bandwidths, stop one or more by force just in the common B grade of program request or the order program service of C class user, discharge enough outlet bandwidths, accept this order request and adopt minimum program request speed b
kOtherwise, refuse this order request.
Described step 3) is specially:
As U+c＞M, common C class user sends order request, by reducing just in the program request speed of the B of program request class user, discharges enough outlet bandwidths, accepts this order request; Otherwise, in the time of can't discharging enough outlet bandwidths, refuse this order request;
As U+c＞M, privilege C class user sends order request, by just reducing program request speed at one or more B class user of program request, in the time of can't discharging enough outlet bandwidths, stop one or more by force just in the order program service of the common B or the C class user of program request, discharge enough outlet bandwidths, accept this order request; Otherwise refuse this order request.
Described step 3) further comprises,
When certain/a little user's demand (telecommunication) services are terminated or program request speed is lowered, and notify this/a little user's demand (telecommunication) services are terminated or program request speed is lowered.
Described step 3) further comprises,
When certain/a little user's demand (telecommunication) services are terminated or program request speed is lowered, and adjust this/a little users' charging way.
Also comprise,
When order program service normal termination or user's active termination,, promote the user's of on-fixed program request speed program request speed if ordering server outlet bandwidth abundance promotes strategy according to predetermined speed.
After the user's of on-fixed program request speed program request speed is raised, notifies this user's program request speed to be raised, and adjust corresponding charging way.
According to the request of on-fixed program request rate users, adjust strategy according to predetermined user speed, adjust on-fixed program request rate users program request speed rank.
After the user's of on-fixed program request speed program request speed is adjusted, notifies this user's program request speed to be adjusted, and adjust corresponding charging way.
The present invention also discloses a kind of control device of video request program, comprises the policy data unit, the policy selection unit, and computing unit, admission control cell, the speed adjustment unit stops the unit by force, the charging control unit;
Described policy data unit: link to each other with described policy selection unit, be used for preserving the degradation strategy, stop strategy by force, speed promotes strategy, and user rate is adjusted strategy;
Described policy selection unit: link to each other with described admission control cell, from described policy data unit, select corresponding strategy;
Described computing unit: link to each other with described admission control cell, calculate the outlet bandwidth U value of having used;
Described admission control cell: be used to set out port band width threshold value N; Concern according to using between the total maximum outlet bandwidth M of outlet bandwidth value U and outlet bandwidth threshold value N and VoD server of described computing unit calculating, judge the order request of whether accepting the user, control described policy selection unit and select described policy data unit strategy accordingly;
Described speed adjustment unit: link to each other with described admission control cell, reduce or improve the program request speed of B class user;
The described unit that stops by force: link to each other with described admission control cell, stop the A grade, common B is or/and the order program service of C class user;
Described charging control unit: link to each other with described admission control cell, be provided with and adjust corresponding charging way.
The present invention also discloses a kind of video on-demand system, comprises,
Central control unit: the control device with program data unit, program request processing unit, communication unit, user data cell, video request program links to each other respectively, is used for coordinating and each unit of control;
Program data unit: link to each other with central control unit, be used to preserve the data file of all programme contents of video-on-demand service;
Program request processing unit: link to each other with central control unit, be used for the programme content of program data unit is carried out processed, finish the encoding compression of video/audio;
Communication unit: link to each other with central control unit, the Media Stream that is used for and transmission request program mutual with the control of user client is to described user;
User data cell: link to each other with central control unit, be used to divide and write down custom video order program service user's user gradation and user profile;
It is characterized in that, also comprise,
The control device of video request program: link to each other with central control unit, be used for outlet bandwidth value, control described user's order request according to the server use.
The control device of described video request program also comprises,
Computing unit: calculate the outlet bandwidth U value of having used;
Admission control cell: be used to set out port band width threshold value N; Link to each other with computing unit, concern according to using between the total maximum outlet bandwidth M of outlet bandwidth value U and outlet bandwidth threshold value N and VoD server of described computing unit calculating, judge the order request of whether accepting the user, control strategy selected cell selection strategy data cell is strategy accordingly;
The policy data unit: be used for preserving the degradation strategy, stop strategy by force, speed promotes strategy, and user rate is adjusted strategy;
Policy selection unit: link to each other with admission control cell with the policy selection unit, from the policy data unit, select corresponding strategy;
Speed adjustment unit: link to each other with admission control cell, reduce or improve the program request speed of B class user;
Stop the unit by force: link to each other with admission control cell, stop the A grade, common B is or/and the order program service of C class user;
Charging control unit: link to each other with admission control cell, be provided with and adjust corresponding charging way.
Administrative unit: link to each other with central control unit, be used for the registered user, nullify management and accounting management.
By above technical scheme provided by the invention as can be seen, the present invention is under the situation of ordering server outlet bandwidth finite capacity, to using user's segmentation service grade of video-on-demand service, different user gradations is taked different program request rate control strategy.Make the user obtain the service performance of differentiation, improved the ability that the VoD vod server is accepted order request, realized the efficient use of VoD system.
Description of drawings
Fig. 1 is a VoD system schematic in the prior art;
Fig. 2 is the realization flow figure of the inventive method;
Fig. 3 is the control flow chart of order program service normal termination;
Fig. 4 initiatively adjusts the control procedure flow chart of program request speed for the user;
Fig. 5 is the control device structure chart of video request program;
Fig. 6 is the structure chart of the control device application system of video request program.
Embodiment
Because different user has different quality of service requirements and different payment grades usually, therefore can give the control strategy of service speed at different users respectively, when satisfying differentiation user performance demand, realize the maximization of system effectiveness.
Referring to Fig. 2, this figure is the realization flow figure of the inventive method.
The control method of video request program of the present invention comprises step:
S1, reception user order request;
S2, judge user gradation according to user profile;
User gradation is a Three Estate:
The A class user: no program request speed guarantees, could obtain video-on-demand service when the ordering server load is light;
B class user:, k kind program request speed is arranged for demand (telecommunication) service;
The C class user: for demand (telecommunication) service, the program request speed c of administration of fixed;
The B class user can be further divided into:
Common B class user: being used to general paying customer, is a kind of user of program request rate-compatibleization; To certain demand (telecommunication) service, k kind program request speed is arranged, when ordering server load is light, give maximum program request speed b1, when the ordering server load is big, is adjusted into more point and broadcasts bi;
Wherein i=1,2.....k, bk program request speed minimum;
Privilege B class user: being used to senior paying customer, also is a kind of user of program request rate-compatibleization, has the user gradation of grabbing access authorization for resource; Such user is in request during demand (telecommunication) service, and when the ordering server outlet bandwidth is not enough, the premature termination common B grade of not served is or/and the user's of common C grade demand (telecommunication) service by force.
The C class user can be further divided into:
Common C class user: being used to senior paying customer, the request program quality is had higher requirements, is a kind of user of program request constant rate; For demand (telecommunication) service, the program request speed c of administration of fixed;
Privilege C class user: be used to senior paying customer, the request program quality is had higher requirements, have the user gradation of grabbing access authorization for resource; If the ordering server outlet bandwidth is not enough, the premature termination common B grade of not served is or/and the user's of common C grade demand (telecommunication) service by force.
The following describes the meaning of Several Parameters:
K: when using certain demand (telecommunication) service, the quantity of the optional program request speed of B class user.
A: when using certain demand (telecommunication) service, the program request speed of A class user.
Bi: when using certain demand (telecommunication) service, B class user i possible program request speed, the scope of i is 1≤i≤k, and i is more little, and then bi is big more.
C: when using certain demand (telecommunication) service, the constant program request speed of C class user.
The maximum outlet bandwidth that the M:VoD server is total, all professional program request speed sums can not surpass this numerical value.
The current outlet bandwidth value of having used of U:VoD server.
N: the outlet bandwidth threshold value, when U＞N, represent that then the VoD server is in the state of outlet bandwidth anxiety.
A VoD server can provide the various video demand (telecommunication) service simultaneously, and different user may use identical or different demand (telecommunication) services.For different business, its programme content difference also has different audio frequency and video capability and performances usually, and therefore every kind of business all has its specific program request rate parameter bk, a, and b1, c, and the relation between the parameter generally should satisfy a≤bk≤b1≤c.
S3, control according to user gradation.
When the ordering server outlet bandwidth is not enough, the prerogative grade user sends the order program service request, reduces common grade user's program request speed and/or stops common grade user's demand (telecommunication) service and/or reduce prerogative grade user's program request speed or refuse this order request.
When certain/a little user's demand (telecommunication) services are terminated or program request speed is lowered, and notify this/a little user's demand (telecommunication) services are terminated or program request speed is lowered, and adjust this/a little users' charging way.
When the ordering server outlet bandwidth was not enough, common grade user sent the order program service request, reduced common grade user's program request speed of program request or refused this order request.
When certain/a little user's program request speed are lowered, and notify this/a little user's program request speed are lowered, and adjust this/a little users' charging way.
Ask same demand (telecommunication) service,, adopt different admittance control for different user's grades of service.Respectively described Three Estate user's admittance is controlled below and is described:
1) if the demand (telecommunication) service requestor is the A class user:
When a+U＜N, surpass the outlet bandwidth threshold value, accept this order request.Otherwise, refuse this order request.
2) if the demand (telecommunication) service requestor is the B class user:
When U≤N, the idle outlet bandwidth abundance of server is accepted this order request, adopts maximum optional program request speed b1, and corresponding charging way is set;
As U＞N, during U+bk≤M, the idle outlet bandwidth anxiety of server is accepted this order request, but is adopted minimum optional program request speed bk, and corresponding charging way is set;
When U+bk＞M, the idle outlet bandwidth of server is not enough, need according to corresponding degradation strategy reduce certain or certain severally discharge enough outlet bandwidths just in the program request speed of the B of program request class user, making calls request can be accepted and adopt minimum program request speed bk.
The degradation strategy that adopts can be selected the processing of demoting of the highest-ranking B class user of program request speed, also can select according to factors such as time of program request and charging ways.When discharging enough outlet bandwidths, accept this order request, and corresponding charging way is set.
If can't discharge enough outlet bandwidths by degradation, for example all B class users are current has all adopted minimum program request speed.For common B class user, then refuse this order request.Do not have the A class user in program request this moment, because before the program request speed of B class user was lowered, the A class user all was terminated demand (telecommunication) service.For franchise B class user, except the same program request speed that reduces some B class user with common B class user, can also according to corresponding stop by force strategy stop by force certain or certain several just at the common B of program request or/and the order program service of common C class user.Thereby discharge enough outlet bandwidths, making calls request can be accepted and adopt minimum program request speed bk.If still can't discharge enough outlet bandwidths, mainly with franchise B, franchise C class user is main in the current system, can not stop its service by force, then refuses this privilege party B-subscriber's order request.
The strategy of termination by force that adopts can select the user of program request speed maximum to stop by force, perhaps selects according to factors such as time of program request and charging ways.When discharging enough outlet bandwidths, then accept this order request, and corresponding charging way is set.
3) if the demand (telecommunication) service requestor is the C class user:
When U+c＜=M, the idle outlet bandwidth of server is enough, accepts this order request, adopts constant program request speed c, and corresponding charging way is set;
When U+c＞M, the idle outlet bandwidth of server is not enough, need according to corresponding degradation strategy reduce certain or certain severally discharge enough outlet bandwidths just in the program request speed of the B of program request class user, making calls request can be accepted.When discharging enough outlet bandwidths, then accept this order request.
For common C class user, can't discharge enough outlet bandwidths when handling by degradation, then refuse this order request.
For franchise C class user, in the time can't discharging enough outlet bandwidths by the degradation processing, can also be according to the corresponding strategy of termination by force, stop by force certain or certain several just at the common B of program request or/and the order program service of common C class user, thereby discharge enough outlet bandwidths, making calls request is accepted.When discharging enough outlet bandwidths, then accept this order request, and corresponding charging way is set.When discharging enough outlet bandwidths, then refuse this privilege C user's order request.
After the order program service normal termination, the VoD server outlet bandwidth that it takies will be discharged.When outlet bandwidth reverts to abundance,, should promote strategy according to rate corresponding and consider to improve their program request speed for the B class user that adopts low program request speed.For fear of frequent relatively speed adjustment, can adopt the B class user that does not adopt maximum optional program request speed for all, when enough all these users of the server outlet bandwidth of free time improve a program request speed rank, then improve grade of program request speed of these users simultaneously, otherwise do not improve rate processing.Can certainly determine to improve the program request speed of B class user and the speed grade of raising according to program request time or program request frequency.
Referring to Fig. 3, this figure is the control flow chart of order program service normal termination.
S10. request program normal termination or the program request of user's active termination; When user's program request normal termination, or after the active termination program request, can discharge the outlet bandwidth rate resource that it takies.
S20. recomputate the outlet bandwidth U value of having used;
S30. the relevant processing of chargeing;
S40. promote strategy according to corresponding speed, judge whether can carry out the lifting of program request speed, if can not implement to promote speed operation, then execution in step S80 to some B class user;
S50. promote when carrying out speed, selected B class user is increased to certain program request speed, and carry out corresponding charging way adjustment;
S60. notify its program request speed of this B class user to be increased to new grade;
S70. recomputate the outlet bandwidth U value of having used;
S80. control procedure finishes.
When its program request speed rank is adjusted in the request initiatively of B class user.Adjust strategy if meet corresponding user rate, server is accepted this request.
Referring to Fig. 4, this figure is the control procedure flow chart that the user initiatively adjusts program request speed:
S100. receive certain B class user and adjust the request of speed;
S200. adjust strategy according to current server outlet bandwidth state and corresponding user rate, whether decision carries out the speed adjustment.If can not adjust speed, then notify this user can not accept this request, execution in step S600;
S300. if can carry out the speed adjustment, adjust user's program request speed and carry out corresponding charging way adjustment;
S400. notify the user its speed adjustment success;
S500. recomputate the outlet bandwidth U value of having used;
S600. control procedure finishes.
Another object of the present invention provides a kind of control device and application thereof of video request program, to realize the video request program rate controlled, improves the control effect.
Referring to Fig. 5, this figure is the control device structure chart of video request program.
The control device 4 of video request program comprises, policy data unit 43, and policy selection unit 44, computing unit 41, admission control cell 42, speed adjustment unit 45 stops unit 46 by force, charging control unit 47; Be used for receiving request user profile, according to the outlet bandwidth value that server uses, control user request.
Policy data unit 43: link to each other with policy selection unit 44, be used for preserving the degradation strategy, stop strategy by force, speed promotes strategy, and user rate is adjusted strategy;
Policy selection unit 44: link to each other with admission control cell 42, from policy data unit 43, select corresponding strategy;
Computing unit 41: link to each other with admission control cell 42, calculate already used outlet bandwidth U value;
Admission control cell 42: be used to set out port band width threshold value N; Concern according to using between the total maximum outlet bandwidth M of outlet bandwidth value U and outlet bandwidth threshold value N and VoD server, judge the order request of whether accepting the user, control strategy selected cell 44 selection strategy data cells 43 corresponding strategies;
Speed adjustment unit 45: link to each other with admission control cell 42, reduce or improve the program request speed of B class user;
Charging control unit 47: link to each other with admission control cell 42, be provided with and adjust corresponding charging way.
Be example with A, B, C class user respectively below, this device course of work is described.
If the demand (telecommunication) service requestor is the A class user:
When a+U＜N, surpass the outlet bandwidth threshold value, accept this order request; Otherwise, refuse this order request.
If the demand (telecommunication) service requestor is the B class user:
When U≤N, the idle outlet bandwidth abundance of server is accepted this order request, adopts maximum optional program request speed b
1
As U＞N, U+b
kDuring≤M, the idle outlet bandwidth anxiety of server is accepted this order request, adopts minimum optional program request speed b
k
Work as U+b
kDuring＞M, the idle outlet bandwidth of server is not enough, the degradation strategy of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43; Admission control cell 42 calls speed adjustment unit 45 according to the degradation strategy, determine to reduce certain or certain several just in the common B grade and the franchise B class user program request speed of program request, discharge enough outlet bandwidths, making calls request can be accepted and adopt minimum program request speed b
k
Be lowered program request speed that or that several just at the B of program request class user, charging control unit 47 is adjusted corresponding charging way.
If can't discharge enough outlet bandwidths by degradation, for example all B class users are current has all adopted minimum program request speed:
For common B class user, refuse this order request.
For franchise B class user, except the same processing speed that reduces some B class user with common B class user, the strategy of termination by force of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43, admission control cell 42 calls and stops unit 46 by force according to stopping strategy by force, determine to stop by force certain or certain several just in the order program service of the common B or the common C class user of program request.Thereby discharge enough outlet bandwidths, making calls request can be accepted, and adopts minimum program request speed b
kIf still can't discharge enough outlet bandwidths, mainly with franchise B, franchise C class user is main in the current system, can not stop its service by force, then refuses the order request of this privilege B class user.
For stopped by force that or that several just at the common B or the common C class user of program request, charging control unit 47 is adjusted corresponding charging way.
If the demand (telecommunication) service requestor is the C class user:
When U+c＜=M, the idle outlet bandwidth of server is enough, accepts this order request, adopts constant program request speed c;
When U+c＞M, the idle outlet bandwidth of server is not enough, the degradation strategy of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43; Admission control cell 42 calls speed adjustment unit 45 according to the degradation strategy, and definite reduction certain or certain is several to discharge enough outlet bandwidths just in the common B grade of program request and the program request speed of franchise B class user, and making calls request can be accepted.When discharging enough outlet bandwidths, accept this order request.
Be lowered program request speed that or that several just at the B of program request class user, charging control unit 47 is adjusted corresponding charging way.
For common C class user, can't discharge enough outlet bandwidths by degradation, then refuse this order request.
For franchise C class user, in the time of can't discharging enough outlet bandwidths by degradation, the strategy of termination by force of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43, admission control cell 42 calls and stops unit 46 by force according to stopping strategy by force, determine to stop by force certain or certain several just in the order program service of the common B or the common C class user of program request, thereby discharge enough outlet bandwidths, making calls request is accepted.When discharging enough outlet bandwidths, accept this order request.When discharging enough outlet bandwidths, then refuse this privilege C user's order request.
For stopped by force that or that several just at the common B or the common C class user of program request, charging control unit 47 is adjusted corresponding charging way.
Referring to Fig. 6, this figure is the structure chart of the control device application system of video request program.
Described system comprises, the control device 4 of program data unit 2, program request processing unit 8, communication unit 7, user data cell 1 and video request program, administrative unit 6, central control unit 3.
Program data unit 2: link to each other with central control unit 3, be used to preserve the data file of all programme contents of video-on-demand service.
Program request processing unit 8: link to each other with central control unit 3, be used for the programme content of program data unit 2 is carried out processed, finish the encoding compression of video/audio.
Communication unit 7: link to each other with central control unit 3, the Media Stream that is used for and transmission request program mutual with the control of user client is to described user.
User data cell 1: link to each other with central control unit 3, be used to divide and write down custom video order program service user's user gradation and user profile.
The control device 4 of video request program comprises,
Policy data unit 43: link to each other with policy selection unit 44, be used for preserving the degradation strategy, stop strategy by force, speed promotes strategy, and user rate is adjusted strategy;
Policy selection unit 44: link to each other with admission control cell 42, from policy data unit 43, select corresponding strategy;
Computing unit 41: link to each other with admission control cell 42, calculate already used outlet bandwidth U value;
Admission control cell 42: be used to set out port band width threshold value N; Concern according to using between the total maximum outlet bandwidth M of outlet bandwidth value U and outlet bandwidth threshold value N and VoD server, judge the order request of whether accepting the user, control strategy selected cell 44 selection strategy data cells 43 corresponding strategies;
Speed adjustment unit 45: link to each other with admission control cell 42, reduce or improve the program request speed of B class user;
Charging control unit 47: link to each other with admission control cell 42, be provided with and adjust corresponding charging way.
Administrative unit 6: link to each other 3 with central control unit,, be used for user's registration and unregistration management, accounting management etc., the normal operation of safeguards system,
Central control unit 3: the control device 4 with program data unit 2, program request processing unit 8, communication unit 7, user data cell 1, administrative unit 6, video request program links to each other respectively, is used for coordinating and each unit of control.
The concrete course of work of video request program:
Communication unit 7 receives new order program service request.
Central control unit 3 inquiring user data cells 1 are obtained this order request user's user profile.
Limited less than this order request user's information or this user's current service when inquiry, communication unit 7 notifies this user client can't accept its order program service request, and control procedure finishes.
When this order request user can use, central control unit 3 is determined these users' the grade of service and the rate parameter of request program.
When U＞N, VoD server outlet bandwidth anxiety, the admission control cell 42 of the control device 4 of video request program calls the order program service that stops unit all A class users of 46 premature terminations by force, discharges the outlet bandwidth that it takies.Communication unit 7 notice A class users, order program service is terminated.
The computing unit 41 of the control device 4 of video request program recomputates the outlet bandwidth U value of having used;
The control device 4 of video request program is admitted the control order request.
The control device 4 of video request program is admitted the concrete course of work of control order request:
If the demand (telecommunication) service requestor is the A class user:
When a+U＜N, surpass the outlet bandwidth threshold value, accept this order request; Otherwise, refuse this order request.
If the demand (telecommunication) service requestor is the B class user:
When U≤N, the idle outlet bandwidth abundance of server is accepted this order request, adopts maximum optional program request speed b
1
As U＞N, U+b
kDuring≤M, the idle outlet bandwidth anxiety of server is accepted this order request, adopts minimum optional program request speed b
k
Work as U+b
kDuring＞M, the idle outlet bandwidth of server is not enough, the degradation strategy of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43; Admission control cell 42 calls speed adjustment unit 45 according to the degradation strategy, and definite reduction certain or certain is several to discharge enough outlet bandwidths just in the program request speed of the B of program request class user, and making calls request can be accepted and adopt minimum program request speed b
k
Be lowered program request speed that or that several just at the B of program request class user, charging control unit 47 is adjusted corresponding charging way.
If can't discharge enough outlet bandwidths by degradation, for example all B class users are current has all adopted minimum program request speed:
For common B class user, refuse this order request.
For franchise B class user, except the same processing speed that reduces some B class user with common B class user, the strategy of termination by force of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43, admission control cell 42 calls and stops unit 46 by force according to stopping strategy by force, determine to stop by force certain or certain several just in the order program service of the common B or the common C class user of program request.Thereby discharge enough outlet bandwidths, making calls request can be accepted, and adopts minimum program request speed b
kIf still can't discharge enough outlet bandwidths, mainly with franchise B, franchise C class user is main in the current system, can not stop its service by force, then refuses the order request of this privilege B class user.
For stopped by force that or that several just at the common B or the common C class user of program request, charging control unit 47 is adjusted corresponding charging way.
If the demand (telecommunication) service requestor is the C class user:
When U+c＜=M, the idle outlet bandwidth of server is enough, accepts this order request, adopts constant program request speed c;
When U+c＞M, the idle outlet bandwidth of server is not enough, the degradation strategy of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43; Admission control cell 42 calls speed adjustment unit 45 according to the degradation strategy, and definite reduction certain or certain is several to discharge enough outlet bandwidths just in the common B grade of program request and the program request speed of franchise B class user, and making calls request can be accepted.When discharging enough outlet bandwidths, accept this order request.
Be lowered program request speed that or that several just at the B of program request class user, charging control unit 47 is adjusted corresponding charging way.
For common C class user, can't discharge enough outlet bandwidths by degradation, then refuse this order request.
For franchise C class user, in the time of can't discharging enough outlet bandwidths by degradation, the strategy of termination by force of admission control cell 42 control strategy selected cells 44 selection strategy data cells 43, admission control cell 42 calls and stops unit 46 by force according to stopping strategy by force, determine to stop by force certain or certain several just in the order program service of the common B or the common C class user of program request, thereby discharge enough outlet bandwidths, making calls request is accepted.When discharging enough outlet bandwidths, accept this order request.When discharging enough outlet bandwidths, then refuse this privilege C user's order request.
For stopped by force that or that several just at the common B or the common C class user of program request, charging control unit 47 is adjusted corresponding charging way.
Be terminated when user rate is lowered or serves, communication unit 7 notifies its speed of these users to be lowered to new speed or its service is terminated; Program request processing unit 8 carries out program request or stops its order program service by new speed.
When program is for the first time by program request, central control unit 3 will be called in the content of this program to program request processing unit 8 from program data unit 2; 8 pairs of programme contents of program request processing unit are encoded processed by the program request speed of correspondence.
The medium that communication unit 7 sends request program flow to user client, and the user normally watches this request program; Control procedure finishes.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (19)
1, a kind of control method of video request program is characterized in that, comprises step:
1) receives user's order request;
2) judge user gradation according to user profile;
3), carry out program request control according to user gradation.
2, the control method of video request program as claimed in claim 1 is characterized in that, described step 2) in user gradation be Three Estate:
The A class user: no program request speed guarantees, could obtain video-on-demand service when the ordering server load is light;
B class user:, k kind program request speed is arranged for demand (telecommunication) service;
The C class user: for demand (telecommunication) service, the program request speed c of administration of fixed;
Wherein, the quantity of the optional program request speed of k:B class user;
The constant program request speed of c:C class user.
3, the control method of video request program as claimed in claim 2 is characterized in that, described step 3) is specially:
If a) the demand (telecommunication) service requestor is the A class user:
When a+U＜N, accept this order request; Otherwise, refuse this order request;
B) if the demand (telecommunication) service requestor is the B class user:
When U≤N, accept this order request, adopt maximum program request speed b
1
As U＞N, U+b
kDuring≤M, accept this order request, adopt minimum program request speed b
k
C) if the demand (telecommunication) service requestor is the C class user:
When U+c≤M, accept this order request, adopt constant program request speed c;
Wherein, the quantity of the optional program request speed of k:B class user;
The program request speed of a:A class user;
b
i: B class user i possible program request speed, the scope of i is 1≤i≤k, i is more little, then b
iBig more;
Wherein, the constant program request speed of c:C class user;
The maximum outlet bandwidth that the M:VoD server is total;
The current outlet bandwidth value of having used of U:VoD server;
N: outlet bandwidth threshold value.
4, the control method of video request program as claimed in claim 2 is characterized in that, described step 3) is specially:
When the ordering server outlet bandwidth is nervous, stop all by force just in the order program service of the A of program request class user, discharge the outlet bandwidth that they take.
5, the control method of video request program as claimed in claim 4 is characterized in that, described ordering server outlet bandwidth anxiety is specially,
The current outlet bandwidth numerical value that has used of ordering server is greater than ordering server outlet bandwidth threshold value.
6, the control method of video request program as claimed in claim 2 is characterized in that, described B class user comprises,
Common B class user: when the ordering server load is light, give maximum program request speed b
1, when ordering server load is big, is adjusted into more point and broadcasts speed b
i, b wherein
kProgram request speed minimum, b
iProgram request speed is between b
1With b
kBetween;
Wherein, i=1,2.....k;
Privilege B class user: the authority of grabbing resource is arranged; This grade user is in request during demand (telecommunication) service, and when the ordering server outlet bandwidth is not enough, the premature termination common B grade of not served is or/and the user's of common C grade demand (telecommunication) service by force;
Described C class user comprises,
Common C class user: for demand (telecommunication) service, the program request speed c of administration of fixed;
Privilege C class user: the authority of grabbing resource is arranged; If the ordering server outlet bandwidth is not enough, the premature termination common B grade of not served is or/and the user's of common C grade demand (telecommunication) service by force.
7, the control method of video request program as claimed in claim 6 is characterized in that, described step 3) is specially:
When the ordering server outlet bandwidth is not enough, the prerogative grade user sends the order program service request, according to predetermined degradation strategy, reduce the program request speed of the B class user of program request, and/or according to the predetermined strategy of termination by force, stop common grade user demand (telecommunication) service, or refuse this order request;
When the ordering server outlet bandwidth was not enough, common grade user sent the order program service request, according to predetermined degradation strategy, reduce program request the B class user program request speed or refuse this order request.
8, the control method of video request program as claimed in claim 6 is characterized in that, described step 3) is specially:
If the demand (telecommunication) service requestor is the B class user, work as U+b
kDuring＞M, reduce, discharge enough outlet bandwidths, accept this order request and adopt minimum program request speed b just in the program request speed of the B of program request class user
k
If can't discharge enough outlet bandwidths,, then refuse this order request for common B class user;
Work as U+b
k＞M, common B class user sends order request, just in one or the program request speed of most individual B class users of program request, discharges enough outlet bandwidths by reduction, accepts this order request and adopts minimum program request speed b
kOtherwise, refuse this order request;
Work as U+b
k＞M, privilege B class user sends order request, by just reducing program request speed at one or most B class users of program request, in the time of can't discharging enough outlet bandwidths, stop one or more by force just in the common B grade of program request or the order program service of C class user, discharge enough outlet bandwidths, accept this order request and adopt minimum program request speed b
kOtherwise, refuse this order request.
9, the control method of video request program as claimed in claim 6 is characterized in that, described step 3) is specially:
As U+c＞M, common C class user sends order request, by reducing just in the program request speed of the B of program request class user, discharges enough outlet bandwidths, accepts this order request; Otherwise, in the time of can't discharging enough outlet bandwidths, refuse this order request;
As U+c＞M, privilege C class user sends order request, by just reducing program request speed at one or more B class user of program request, in the time of can't discharging enough outlet bandwidths, stop one or more by force just in the order program service of the common B or the C class user of program request, discharge enough outlet bandwidths, accept this order request; Otherwise refuse this order request.
As the control method of claim 1 or 6 or 8 described video request programs, it is characterized in that 10, described step 3) further comprises,
When certain/a little user's demand (telecommunication) services are terminated or program request speed is lowered, and notify this/a little user's demand (telecommunication) services are terminated or program request speed is lowered.
11, the control method of video request program as claimed in claim 10 is characterized in that, described step 3) further comprises,
When certain/a little user's demand (telecommunication) services are terminated or program request speed is lowered, and adjust this/a little users' charging way.
12, the control method of video request program as claimed in claim 1 is characterized in that, also comprise,
When order program service normal termination or user's active termination,, promote the user's of on-fixed program request speed program request speed if ordering server outlet bandwidth abundance promotes strategy according to predetermined speed.
13, the control method of video request program as claimed in claim 12 is characterized in that, also comprise,
After the user's of on-fixed program request speed program request speed is raised, notifies this user's program request speed to be raised, and adjust corresponding charging way.
14, the control method of video request program as claimed in claim 1 is characterized in that, also comprise,
According to the request of on-fixed program request rate users, adjust strategy according to predetermined user speed, adjust on-fixed program request rate users program request speed rank.
15, the control method of video request program as claimed in claim 14 is characterized in that, also comprise,
After the user's of on-fixed program request speed program request speed is adjusted, notifies this user's program request speed to be adjusted, and adjust corresponding charging way.
16, a kind of control device of video request program is characterized in that, comprises the policy data unit, the policy selection unit, and computing unit, admission control cell, the speed adjustment unit stops the unit by force, the charging control unit;
Described policy data unit: link to each other with described policy selection unit, be used for preserving the degradation strategy, stop strategy by force, speed promotes strategy, and user rate is adjusted strategy;
Described policy selection unit: link to each other with described admission control cell, from described policy data unit, select corresponding strategy;
Described computing unit: link to each other with described admission control cell, calculate the outlet bandwidth U value of having used;
Described admission control cell: be used to set out port band width threshold value N; Concern according to using between the total maximum outlet bandwidth M of outlet bandwidth value U and outlet bandwidth threshold value N and VoD server of described computing unit calculating, judge the order request of whether accepting the user, control described policy selection unit and select described policy data unit strategy accordingly;
Described speed adjustment unit: link to each other with described admission control cell, reduce or improve the program request speed of B class user;
The described unit that stops by force: link to each other with described admission control cell, stop the A grade, common B is or/and the order program service of C class user;
Described charging control unit: link to each other with described admission control cell, be provided with and adjust corresponding charging way.
17, a kind of video on-demand system comprises,
Central control unit: the control device with program data unit, program request processing unit, communication unit, user data cell, video request program links to each other respectively, is used for coordinating and each unit of control;
Program data unit: link to each other with central control unit, be used to preserve the data file of all programme contents of video-on-demand service;
Program request processing unit: link to each other with central control unit, be used for the programme content of program data unit is carried out processed, finish the encoding compression of video/audio;
Communication unit: link to each other with central control unit, the Media Stream that is used for and transmission request program mutual with the control of user client is to described user;
User data cell: link to each other with central control unit, be used to divide and write down custom video order program service user's user gradation and user profile;
It is characterized in that, also comprise,
The control device of video request program: link to each other with central control unit, be used for outlet bandwidth value, control described user's order request according to the server use.
18., it is characterized in that the control device of described video request program also comprises as a kind of video on-demand system as described in the claim 17,
Computing unit: calculate the outlet bandwidth U value of having used;
Admission control cell: be used to set out port band width threshold value N; Link to each other with computing unit, concern according to using between the total maximum outlet bandwidth M of outlet bandwidth value U and outlet bandwidth threshold value N and VoD server of described computing unit calculating, judge the order request of whether accepting the user, control strategy selected cell selection strategy data cell is strategy accordingly;
The policy data unit: be used for preserving the degradation strategy, stop strategy by force, speed promotes strategy, and user rate is adjusted strategy;
Policy selection unit: link to each other with admission control cell with the policy selection unit, from the policy data unit, select corresponding strategy;
Speed adjustment unit: link to each other with admission control cell, reduce or improve the program request speed of B class user;
Stop the unit by force: link to each other with admission control cell, stop the A grade, common B is or/and the order program service of C class user;
Charging control unit: link to each other with admission control cell, be provided with and adjust corresponding charging way.
19, video on-demand system as claimed in claim 18 is characterized in that, also comprise,
Administrative unit: link to each other with central control unit, be used for the registered user, nullify management and accounting management.
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|---|---|---|---|
| CN 200610072612 CN101052119B (en) | 2006-04-05 | 2006-04-05 | Control method, device and use for video frequency ordering |
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|---|---|---|---|
| CN 200610072612 CN101052119B (en) | 2006-04-05 | 2006-04-05 | Control method, device and use for video frequency ordering |
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