CN101964947A - Data scheduling platform of integrated information service broadcasting system - Google Patents
Data scheduling platform of integrated information service broadcasting system Download PDFInfo
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Abstract
The invention discloses a data scheduling platform of an integrated information service broadcasting system. The data scheduling platform comprises a control center, a real-time service data broadcasting scheduling subsystem, a non real-time service data broadcasting scheduling subsystem, a personalized data broadcasting scheduling subsystem and a channel adapting subsystem. The scheduling platform established by the invention can support broadcasting services of real-time service data and non real-time service data under the same broadcasting channel, support dynamic addition, deletion and data modification services and perform dynamic distribution, adjustment and recovery of broadband; a single-channel broadcasting or multi-channel parallel broadcasting mode and different scheduling strategies are adopted in different data services to meet the time limitation requirement of the real-time data service and reduce the data access time of the non real-time data service; and when the multi-channel parallel broadcasting mode is adopted for data broadcasting, the data scheduling platform supports the change capable of adapting to data classification, dynamically adjusts the distributed channel number and bandwidth, meanwhile supports the user request-based data broadcasting scheduling service, performs reasonable scheduling according to the factors such as data access probability, request deadline, request data length and the like, and meets the requirements of various indexes.
Description
Technical field
The present invention relates to a kind of Comprehensive Data service broadcast system data dispatch platform, belong to the datacasting field.
Background technology
In recent years along with the develop rapidly of wireless communication technologys such as cellular communication, WLAN and satellite communication, information service based on wireless network constantly occurs, make wireless network equipment can visit the information that needs anywhere or anytime, comprise real-time traffic information, real-time stock market, news information, weather forecast and shopping information etc. by wireless network.It combines technology such as mobile computing, move database and radio communication, advantage such as have that broadcast channel is shared, number of users is irrelevant, downlink bandwidth is big and expense is low, data broadcasting is that data are obtained the effective means of issuing with data, in the public information issue, important role is all being brought into play in fields such as military affairs.
The service system of current use mostly is the service of forms data business, and adopts single channel Flat broadcast scheduling mode more, promptly broadcasts all data item periodically, in proper order.Multi channel parallel broadcasting makes the data that the user can the same type of multipoint access become possibility.The parallel broadcasting of multichannel can be according to the classification of data type or service mode, to serve granularity division, parallel broadcasts grouped data, and any moment user start can both have access to the data of particular type, rather than waits for that the data broadcasting of other classification finishes and could visit.Flat broadcast scheduling mode is applicable to user data access module situation relatively uniformly, when user data access module difference is bigger, the data of user capture 20% as 80%, because the data that the high data of access probability and access probability are low have identical transmission frequency, so this broadcast mode makes systematic function sharply descend.Therefore, the difference of factors such as data access probability, data length causes the rationally transmitting time and the transmission frequency of arranging data item, can carry out the covering of better data, services.
The data dispatch strategy is solve this type of problem the most basic, it also is unusual effective method, attributes such as sex-limited when it takes all factors into consideration data, access probability, length, the reasonably sending order of arranging data item and transmission frequency, make priority higher data item preferentially broadcast with higher frequency, so just can effectively reduce the mean access time of data, improve the performance of broadcast system.
Comprehensive Data service of the present invention integrates various data services, and adopts the method for service of the parallel broadcasting of multichannel, and the channel data scheduling feature is provided simultaneously, and the user can have access to own interested data according to the needs of oneself whenever and wherever possible.
Summary of the invention
The technical problem to be solved in the present invention: overcome the deficiencies in the prior art, a kind of Comprehensive Data service broadcast system data dispatch platform is provided.
The technical solution used in the present invention: Comprehensive Data service broadcast system data dispatch platform, comprise control centre, the scheduling of real time business data broadcasting, the scheduling of non-real-time service data broadcasting, individuation data broadcast scheduling and channel adaptation module, wherein:
Control centre: be responsible for startup, the configuration management of data service, the distribution of each service bandwidth and adjustment, store data business and channel allocation information simultaneously; Described control centre comprises message control module, configuration order monitoring module, allocated bandwidth and adjusting module, business datum amount statistical module and configuration database; Configuration order is monitored module and is externally set up the TCP interface, receives the configuring request of data service; Message control module starts corresponding data service service according to the data service configuration information in current configuration data storehouse, and the data service configuring request that configuration order monitoring module receives is analyzed and handled; When dynamic interpolation data service, allocated bandwidth and adjusting module are the bandwidth that data service distributes to be needed, and when deletion or when revising data service, it reclaims and adjust the data service bandwidth; The data volume that business datum amount statistical module is regularly added up each data service is used to carry out the bandwidth adjustment; Configuration database is used for store data business and channel allocation information.
Real time business data broadcasting scheduling: be responsible for the real time business data are dispatched broadcasting; The data dispatch broadcasting of multiple real time business is supported in described real time business data broadcasting scheduling, and the data dispatch broadcasting of every kind of real time business comprises data access module, dynamics of channels adjusting module and one or more real time data scheduler module; The data access module is the access interface of real time data, supports common interfaces such as various databases, UDP, TCP, HTTP; The dynamics of channels adjusting module is according to real time business data dispatch principle of classification, the real time data of difference classification is assigned to corresponding real time data scheduler module, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and can dynamically increase new real time data scheduler module or delete real time data scheduler module out of date according to current classification; The real time data scheduler module is carried out broadcast scheduling to the real time business data that insert.
Non-real-time service data broadcasting scheduling: be responsible for non-real-time data is dispatched broadcasting; The data dispatch broadcasting of multiple non-real-time service is supported in described non-real-time service data broadcasting scheduling, and the data dispatch broadcasting of every kind of non-real-time service comprises data access module, dynamics of channels adjusting module and non-real-time data scheduler module; The data access module is the access interface of non-real-time data, supports common interfaces such as various databases, UDP, TCP, HTTP; The dynamics of channels adjusting module is according to non-real-time service data dispatch principle of classification, the non-real-time data of difference classification is assigned to corresponding non-real-time data scheduler module, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and can dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date according to current classification; The non-real-time data scheduler module is carried out broadcast scheduling to the non-real-time data that inserts.
Individuation data broadcast scheduling: be responsible for to carrying out broadcast scheduling based on the information of user's request and customization; Described individuation data broadcast scheduling comprises request access module, request queue, data access module, request scheduling module and individuation data scheduler module; The request access module receives user's request, leaves in the request queue then; The data access module is the access interface of non-real-time data, supports common interfaces such as various databases, UDP, TCP, HTTP; The request scheduling module is calculated the priority of each request in the current request formation, preferential user's request of selecting to have limit priority; The data set that the individuation data scheduler module is asked user's request of being chosen by the request scheduling module carries out data dispatch.
Channel is adaptive: be responsible for the bandwidth allocation information according to each data traffic channels, broadcasting channel is carried out time slicing, and each business datum is carried out multiplexing, then, multiplex stream is sent to broadcast system carry out data broadcasting.
The course of work of the present invention:
(1) monitoring module of the configuration order in the control centre and message control module start at first; Then, configuration order is monitored module and is externally set up the TCP interface, wait for the configuring request that receives data service, message control module is according to the data service configuration information in the configuration database, start the scheduling of real time business data broadcasting, the scheduling of non-real-time service data broadcasting, individuation data broadcast scheduling, allocated bandwidth and adjusting module, business datum amount statistical module and channel adaptation module respectively, after these program starts, system can provide the data broadcasting dispatch service, when the data service configuring request, and it is analyzed and handle; Business datum amount statistical module is regularly added up the data volume of the scheduling of real time business data broadcasting, non-real-time data broadcast scheduling and individuation data broadcast scheduling; Allocated bandwidth and adjusting module carry out allocated bandwidth and dynamically adjustment according to service configuration information and data volume statistical information to each business.
(2) scheduling of real time business data broadcasting is by inquiry in real time of data access module and reception real time business data, the dynamics of channels adjusting module is according to real time business data dispatch principle of classification, the real time data of difference classification is assigned to corresponding real time data scheduler module, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and can dynamically increase new real time data scheduler module or delete real time data scheduler module out of date according to current classification; The real time data scheduler module is finished the broadcast scheduling to the real time business data.
(3) scheduling of non-real-time service data broadcasting is by inquiry in real time of data access module and reception non-real-time service data, the dynamics of channels adjusting module is according to non-real-time service data dispatch principle of classification, the non-real-time data of difference classification is assigned to corresponding non-real-time data scheduler module, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and can dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date according to current classification; The non-real-time data scheduler module is finished the broadcast scheduling to the non-real-time service data.
(4) the individuation data broadcast scheduling receives the user's data request by the request access module, puts it in the request queue; The request scheduling module is calculated the priority of each request in the current request formation according to user's Request Priority computation model, preferential user's request of selecting to have limit priority; The data that the individuation data scheduler module is asked user's request of choosing are dispatched, and import the data of asking by the data access module, broadcast.
(5) the channel adaptation module at first according to the bandwidth allocation information of each data traffic channels, is carried out time slicing with broadcasting channel, and each business datum is carried out multiplexing, then, multiplex stream is sent to broadcast system carry out data broadcasting.
The beneficial effect that the present invention compared with prior art has is:
(1) the present invention supports the multi-service data broadcasting under the same broadcasting channel, comprises real time business data broadcasting and non-real-time service data broadcasting.
(2) mode of single channel or the parallel broadcasting of multichannel is adopted in support of the present invention respectively to real time business data and non-real-time service data, and support to adopt different scheduling strategies to carry out broadcast scheduling respectively, can satisfy the characteristic requirement of real time business data and non-real-time service data, effectively increase the amount of information of broadcasting channel simultaneously.
(3) adjustment according to data classification principle, the distribution of dynamic management channel and recovery are supported in the parallel broadcasting of multichannel of scheduling of the real time business data broadcasting among the present invention and the scheduling of non-real-time service data broadcasting.
The scheduling of real time business data broadcasting is rationally carried out in sex-limited requirement when (4) the real time business data broadcasting scheduler module among the present invention can be according to real time business data hard.
(5) the non-real-time service data broadcasting scheduler module among the present invention can be taken all factors into consideration the access probability, length, available bandwidth of non-real-time data and sex-limited requirement when soft, rationally carries out the scheduling of non-real-time service data broadcasting.
(6) the individuation data scheduler module among the present invention can be according to active user's request and user customized information, take all factors into consideration access probability, request time limit, request msg item number and data length and the user customized information amount and the customization transmission time information of data, carry out reasonable data dispatch.
(7) allocated bandwidth among the present invention and adjusting module can carry out distribution, adjustment and the recovery of bandwidth to the business of dynamic interpolation, modification, deletion, and can carry out the self adaptation adjustment of bandwidth according to business datum amount statistical information
Description of drawings
Fig. 1 is an institutional framework block diagram of the present invention;
Fig. 2 is a real time business data dispatch broadcasting organization structure chart of the present invention;
Fig. 3 is a non-real-time service data dispatch broadcasting organization structure chart of the present invention;
Fig. 4 is an individuation data broadcast scheduling organization chart of the present invention;
Fig. 5 organizes structure chart for the adaptive subsystem of channel of the present invention.
Embodiment
As shown in Figure 1, composition structure of the present invention comprises: control centre, real time business data broadcasting scheduler subsystem, non-real-time service data broadcasting scheduler subsystem, individuation data broadcast scheduling subsystem and the adaptive subsystem of channel, wherein:
Control centre: be responsible for startup, the configuration management of data service service, data service and channel allocation information are preserved in the distribution of each service bandwidth and adjustment simultaneously; At first, configuration order monitors module and message control module starts, configuration order is monitored module and is externally set up the TCP interface then, receive the configuring request of data service, message control module is according to the data service configuration information in the configuration database, start real time business data broadcasting scheduler subsystem respectively, non-real-time service data broadcasting scheduler subsystem, individuation data broadcast scheduling subsystem, allocated bandwidth and adjusting module, the adaptive subsystem of business datum amount statistical module and channel, system can provide the data broadcasting dispatch service, when the data service configuring request, message control module to the data business configuration request analyze and handle, when dynamic interpolation data service, calling allocated bandwidth and adjusting module is that data service distributes the bandwidth that needs and upgrades configuration database, when deletion or modification data service, call allocated bandwidth and adjusting module and distributed bandwidth to reclaim and adjust, and upgrade configuration database the data business; The data volume that business datum amount statistical module is regularly added up each data service is used to carry out the bandwidth adjustment.
Real time business data broadcasting scheduler subsystem: be responsible for the real time business data are dispatched broadcasting; As shown in Figure 2, real time business data broadcasting scheduler subsystem is supported the data dispatch broadcasting of multiple real time business, and the first data access module is the access interface of real time data, supporting database, UDP, TCP, HTTP interface; The first dynamics of channels adjusting module is according to every kind of real time business data dispatch principle of classification, the real time business data allocations of each classification is arrived corresponding real time data scheduler module, and can dynamically increase new real time data scheduler module or delete real time data scheduler module out of date according to current classification; The real time data scheduler module is carried out broadcast scheduling to the real time business data that insert.Because real time business data general data amount is little, access module is relatively more unified or estimate that its access module time overhead is big, and be strict with the time sex-limited requirement that broadcast cycle must satisfy data, so the data dispatch time overhead must be little, broadcast cycle is short as far as possible, and native system has adopted the Flat broadcast mode.
Non-real-time service data broadcasting scheduler subsystem: be responsible for non-real-time data is carried out broadcast scheduling; As shown in Figure 3, non-real-time service data broadcasting scheduler subsystem is supported the data dispatch broadcasting of multiple non-real-time service, and the second data access module is the access interface of non-real-time data, supporting database, UDP, TCP, HTTP interface; The dynamic adjusting module of second channel is according to non-real-time service data dispatch principle of classification, the non-real-time data of difference classification is assigned to corresponding non-real-time data scheduler module, and can dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date according to current classification; The non-real-time data scheduler module is carried out broadcast scheduling to the non-real-time data that inserts.Because non-real-time data general data amount is big, the access module difference is very big, if adopt traditional scheduling mode, must cause that broadcast cycle is very big, and the low data of the high data of access probability and access probability have identical transmission frequency, must cause more period of reservation of number to prolong, cause data access longer, influence the system service quality, so must adopt a kind of more reasonably scheduling mode, native system adopts a periodic broadcasting hot spot data collection, and based on the scheme that the optimized dispatching model is dispatched, rationally determine the transmission frequency and the sending order of each data, make the access frequency higher data send with higher frequency, the data that access probability is lower send with lower frequency, keep traditional Flat broadcast mode simultaneously, when adding data service, select to adopt which kind of scheduling mode by the user.
Individuation data broadcast scheduling subsystem: be responsible for to carrying out broadcast scheduling based on the information of user's request and customization; As shown in Figure 4, the request access module receives user's request, leave in the request queue then, the request scheduling module is calculated the priority of each request in the current request formation, preferential user's request of selecting to have limit priority, the data set that the individuation data scheduler module is asked user's request of being chosen by the request scheduling module carries out data dispatch.Native system adopts based on the data broadcasting mode of asking the lower data set of access probability of broadcasting, when the request access module receives user's demonstration request, put it in the request queue, user's request comprises user ID, the list of data items of request, the time of advent and off period information, the request scheduling module is considered the data item quantity of user's request, off period, the data length factor, calculate the priority of each user's request according to the priority computation model, preferential user's request of selecting those high priorities, user's request that the individuation data scheduler module is chosen according to the request scheduling module, import the business datum of being asked by the data access module, reject same data item, the order of reasonable arranging data item, carry out data broadcasting efficiently, user customized information is according to the customization data volume, the customization transmission time information carries out the data broadcasting scheduling.
The adaptive subsystem of channel: it is adaptive to be responsible for that each data traffic information is carried out channel; As shown in Figure 5, at first according to the allocated bandwidth situation of current data business, the channel adaptation module is carried out burst to broadcasting channel, and each business datum is carried out multiplexing, sends to broadcast system then and carries out data broadcasting.
Real time business data server among Fig. 1, non-real-time service data server and broadcast system do not belong to the part of native system, the real time business data server belongs to the third party system that produces the real time business data, as real-time traffic, real-time stock information service device etc., the non-real-time service data server belongs to the third party system that produces the non-real-time service data, as news information, shopping information server etc., broadcast system is the third party system that is used for data broadcasting, the native system dispatching platform is positioned on the broadcast system, and is independent of concrete broadcast system.
More than be described in detail implementation procedure of the present invention, do not described part in detail and belong to techniques well known.
Claims (6)
1. Comprehensive Data service data broadcast scheduling platform, it is characterized in that comprising: control centre, real time business data broadcasting scheduler subsystem, non-real-time service data broadcasting scheduler subsystem, individuation data broadcast scheduling subsystem and the adaptive subsystem of channel, wherein:
Control centre: be responsible for startup, the configuration management of data service, the distribution of each service bandwidth and adjustment, store data business and channel allocation information simultaneously; Described control centre comprises message control module, configuration order monitoring module, allocated bandwidth and adjusting module, business datum amount statistical module and configuration database; Configuration order is monitored module and is externally set up the TCP interface, receives the configuring request of data service; Message control module starts corresponding data service service according to the data service configuration information in current configuration data storehouse, and the data service configuring request that configuration order monitoring module receives is analyzed and handled; When dynamic interpolation data service, allocated bandwidth and adjusting module are the bandwidth that data service distributes to be needed, and when deletion or when revising data service, allocated bandwidth and adjusting module reclaim and adjust the data service bandwidth; The data volume that business datum amount statistical module is regularly added up each data service is used to carry out the bandwidth adjustment; Configuration database is used for store data business and channel allocation information;
Real time business data broadcasting scheduler subsystem: be responsible for the real time business data are dispatched broadcasting; Described real time business data broadcasting scheduler subsystem is supported the data dispatch broadcasting of multiple real time business, and the data dispatch broadcasting of every kind of real time business comprises the first data access module, the first dynamics of channels adjusting module and one or more real time data scheduler module; The first data access module is the access interface of real time data, supporting database, UDP, TCP, HTTP interface; The first dynamics of channels adjusting module is according to real time business data dispatch principle of classification, the real time data of difference classification is assigned to corresponding real time data scheduler module, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and, dynamically increase new real time data scheduler module or delete real time data scheduler module out of date according to current classification; The real time data scheduler module is carried out broadcast scheduling to the real time business data that insert;
Non-real-time service data broadcasting scheduler subsystem: be responsible for non-real-time data is dispatched broadcasting; Described non-real-time service data broadcasting scheduler subsystem is supported the data dispatch broadcasting of multiple non-real-time service, and the data dispatch broadcasting of every kind of non-real-time service comprises the second data access module, the dynamic adjusting module of second channel and non-real-time data scheduler module; The second data access module is the access interface of non-real-time data, supporting database, UDP, TCP, HTTP interface; The dynamic adjusting module of second channel is according to non-real-time service data dispatch principle of classification, the non-real-time data of difference classification is assigned to corresponding non-real-time data scheduler module, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and, dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date according to current classification; The non-real-time data scheduler module is carried out broadcast scheduling to the non-real-time data that inserts;
Individuation data broadcast scheduling subsystem: be responsible for to carrying out broadcast scheduling based on the information of user's request and customization; Described individuation data broadcast scheduling subsystem comprises request access module, request queue, the 3rd data access module, request scheduling module and individuation data scheduler module; The request access module receives user's request, leaves in the request queue then; The 3rd data access module is the access interface of non-real-time data, supporting database, UDP, TCP, HTTP interface; The request scheduling module is calculated the priority of each request in the current request formation, preferential user's request of selecting to have limit priority; The data set that the individuation data scheduler module is asked user's request of being chosen by the request scheduling module carries out data dispatch;
The adaptive subsystem of channel: be responsible for the bandwidth allocation information according to each data traffic channels, the adaptive subsystem of described channel comprises the channel adaptation module; The channel adaptation module is at first carried out time slicing with broadcasting channel, and each business datum is carried out multiplexing, then, multiplex stream is sent to broadcast system carry out data broadcasting.
2. Comprehensive Data service broadcast system data dispatch platform according to claim 1, it is characterized in that: described control centre is in core status in whole system, its configuration order is monitored module and message control module starts at first, after the startup, configuration order is monitored module and is externally set up the TCP interface, wait for the business configuration request that receives the self-configuring client, message control module is according to the data service configuration information in the configuration database, start real time business data broadcasting scheduler subsystem respectively, non-real-time service data broadcasting scheduler subsystem, individuation data broadcast scheduling subsystem, allocated bandwidth and adjusting module, the adaptive subsystem of business datum amount statistical module and channel, system can provide the data broadcasting dispatch service, when the data service configuring request, request is analyzed and is handled to the data business configuration; Business datum amount statistical module is regularly added up the data volume of real time business data broadcasting scheduler subsystem, non-real-time data broadcast scheduling subsystem and individuation data broadcast scheduling subsystem; Allocated bandwidth and adjusting module carry out allocated bandwidth and dynamically adjustment according to service configuration information and data volume statistical information to each business.
3. Comprehensive Data service broadcast system data dispatch platform according to claim 1, it is characterized in that: described real time business data broadcasting scheduler subsystem is supported the data dispatch broadcasting of multiple real time business, its dynamics of channels adjusting module is according to real time business data dispatch principle of classification, the data that insert are assigned to corresponding real time data scheduler module by difference, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and, dynamically increase new real time data scheduler module or delete real time data scheduler module out of date according to current classification; The real time data scheduler module is carried out broadcast scheduling to the real time data that inserts, and satisfies the time sex-limited requirement of real time business data.
4. Comprehensive Data service broadcast system data dispatch platform according to claim 1, it is characterized in that: described non-real-time service data broadcasting scheduler subsystem is supported the data dispatch broadcasting of multiple non-real-time service, its dynamics of channels adjusting module is according to non-real-time service data dispatch principle of classification, the data that insert are assigned to corresponding non-real-time data scheduler module by difference, while is according to the data volume of each classification, dynamically adjust the bandwidth of each channel allocation, and, dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date according to current classification; The non-real-time data of non-real-time data scheduler module to inserting according to data access probability, length information, carries out rational management,
5. Comprehensive Data service broadcast system data dispatch platform according to claim 1, it is characterized in that: described individuation data broadcast scheduling subsystem is supported the data broadcasting service based on user's request and customization, at first, receive the user's data request, put it in the request queue, then, the request scheduling module is according to user's Request Priority computation model, calculate the priority of each request in the current request formation, preferential user's request of selecting to have limit priority, last, the data that the individuation data scheduler module is asked user's request of choosing are dispatched, and, broadcast by the data that the importing of data access module is asked; To user customized information, according to the customized information amount, the customization transmission time information carries out rational management.
6. Comprehensive Data service broadcast system data dispatch platform according to claim 1, it is characterized in that: the adaptive subsystem of described channel is at first according to the bandwidth allocation information of each data traffic channels, broadcasting channel is carried out time slicing, and carry out each business datum multiplexing, then, multiplex stream is sent to broadcast system and carry out data broadcasting.
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