CN101964947B - Data scheduling platform of integrated information service broadcasting system - Google Patents

Data scheduling platform of integrated information service broadcasting system Download PDF

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CN101964947B
CN101964947B CN 201010276752 CN201010276752A CN101964947B CN 101964947 B CN101964947 B CN 101964947B CN 201010276752 CN201010276752 CN 201010276752 CN 201010276752 A CN201010276752 A CN 201010276752A CN 101964947 B CN101964947 B CN 101964947B
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CN101964947A (en
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吕卫锋
王丰亮
诸彤宇
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Shenzhen Air Technology Co., Ltd.
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Beihang University
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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

Data scheduling platform of integrated information service broadcasting system
Technical field
The present invention relates to a kind of data scheduling platform of integrated information service broadcasting system, belong to the datacasting field.
Background technology
In recent years along with the develop rapidly of the wireless communication technologys such as cellular communication, WLAN and satellite communication, information service based on wireless network constantly occurs, so that wireless network equipment can be accessed the information that needs anywhere or anytime by wireless network, comprise real-time traffic information, real-time stock market, Domestic News, weather forecast and shopping information etc.It combines the technology such as mobile computing, move database and radio communication, the advantage such as have that broadcast channel is shared, number of users is irrelevant, downlink bandwidth is large and expense is low, data broadcast is the effective means of data acquisition and data issue, in the public information issue, extremely important effect is all being brought into play in the 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, namely periodically, sequentially broadcasts all data item.Multi channel parallel broadcasting is so that the data that the user can the multipoint access same type 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 complete could the access of data broadcast of other classification.Flat broadcast scheduling mode is applicable to the more uniform situation of user data access module, when user data access module difference is larger, user such as 80% accesses 20% data, because the data that the high data of access probability and access probability are low have identical transmission frequency, thus this broadcast mode so that systematic function sharply descend.Therefore, the difference of the factors such as data access probability, data length, cause must the reasonable arrangement data item transmitting time and transmission frequency, can carry out the covering of better data, services.
The data dispatch strategy is solve problems the most basic, it also is unusual effective method, the attributes such as sex-limited when it considers data, access probability, length, the reasonably sending order of arranging data item and transmission frequency, so that the higher data item of priority is preferentially broadcasted 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 according to the needs of oneself own interested data 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 data scheduling platform of integrated information service broadcasting system is provided.
The technical solution used in the present invention: data scheduling platform of integrated information service broadcasting system, comprise control centre, the scheduling of real time business data broadcast, the scheduling of non-real-time service data broadcast, 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, simultaneously store data business and channel allocation information; 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, the configuring request of receive data business; 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 processed; When the dynamic appending data service, allocated bandwidth and adjusting module are the bandwidth that data service distributes to be needed, and when deletion or Update Table business, 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 for carrying out the bandwidth adjustment; Configuration database is used for store data business and channel allocation information.
Real time business data broadcast 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 broadcast 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 the 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 according to current classification, dynamically increase new real time data scheduler module or delete real time data scheduler module out of date; The real time data scheduler module is carried out broadcast scheduling to the real time business data of access.
Non-real-time service data broadcast 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 broadcast 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 the 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 according to current classification, dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date; The non-real-time data scheduler module is carried out broadcast scheduling to the non-real-time data of access.
Individuation data broadcast scheduling: be responsible for 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, then leaves in the request queue; The data access module is the access interface of non-real-time data, supports the 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 individuation data scheduler module is carried out data dispatch to the data set that the user who is chosen by the request scheduling module asks.
Channel adaptation: 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 broadcast.
The course of work of the present invention:
(1) the 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 of receive data business, message control module is according to the data service configuration information in the configuration database, start respectively the scheduling of real time business data broadcast, the scheduling of non-real-time service data broadcast, individuation data broadcast scheduling, allocated bandwidth and adjusting module, business datum amount statistical module and channel adaptation module, after these program starts, system can provide the data broadcast dispatch service, when the data service configuring request is arranged, and it is analyzed and process; Business datum amount statistical module is regularly added up the data volume of the scheduling of real time business data broadcast, 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 broadcast is by data access module real-time query 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 according to current classification, dynamically increase new real time data scheduler module or delete real time data scheduler module out of date; 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 broadcast is by data access module real-time query 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 according to current classification, dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date; 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 puts it in the request queue by request access module reception user's request of data; 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 individuation data scheduler module is dispatched the data that the user who chooses asks, and imports the data of asking by the data access module, broadcasts.
(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 broadcast.
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 broadcast and non-real-time service data broadcast.
(2) mode of single channel or the parallel broadcasting of multichannel is adopted respectively in support of the present invention to real time business data and non-real-time service data, and support to adopt respectively different scheduling strategies to carry out broadcast scheduling, can satisfy the characteristic requirements of real time business data and non-real-time service data, effectively increase simultaneously the amount of information of broadcasting channel.
(3) adjustment according to data classification principle, the distribution of dynamic management channel and recovery are supported in the parallel broadcasting of multichannel of the scheduling of the real time business data broadcast among the present invention and the scheduling of non-real-time service data broadcast.
The scheduling of real time business data broadcast is rationally carried out in sex-limited requirement when (4) the real time business data broadcast scheduler module among the present invention can be according to real time business data hard.
(5) the non-real-time service data broadcast scheduler module among the present invention can consider 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 broadcast.
(6) the individuation data scheduler module among the present invention can be according to active user's request and user customized information, consider access probability, request time limit, request msg item number and data length and 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 to the business of dynamic appending, modification, deletion distribution, adjustment and the recovery of bandwidth, and can carry out according to business datum amount statistical information the self adaptation adjustment of bandwidth
Description of drawings
Fig. 1 is institutional framework block diagram of the present invention;
Fig. 2 is real time business data dispatch broadcasting organization structure chart of the present invention;
Fig. 3 is non-real-time service data dispatch broadcasting organization structure chart of the present invention;
Fig. 4 is individuation data broadcast scheduling organization chart of the present invention;
Fig. 5 is that channel adaptation subsystem of the present invention is organized structure chart.
Embodiment
As shown in Figure 1, composition structure of the present invention comprises: control centre, real time business data broadcast scheduler subsystem, non-real-time service data broadcast scheduler subsystem, individuation data broadcast scheduling subsystem and channel adaptation subsystem, wherein:
Control centre: be responsible for startup, the configuration management of data service service, the distribution of each service bandwidth and adjustment, simultaneously save data business and channel allocation information; At first, configuration order monitors module and message control module starts, then configuration order is monitored module and is externally set up the TCP interface, the configuring request of receive data business, message control module is according to the data service configuration information in the configuration database, start respectively real time business data broadcast scheduler subsystem, non-real-time service data broadcast scheduler subsystem, individuation data broadcast scheduling subsystem, allocated bandwidth and adjusting module, business datum amount statistical module and channel adaptation subsystem, system can provide the data broadcast dispatch service, when the data service configuring request is arranged, message control module to the data business configuration request analyze and process, when the dynamic appending data service, calling allocated bandwidth and adjusting module is bandwidth and the Reconfigurations database that data service distributes to be needed, when deletion or Update Table business, call allocated bandwidth and adjusting module and distributed bandwidth to reclaim and adjust to the data business, and the Reconfigurations database; The data volume that business datum amount statistical module is regularly added up each data service is used for carrying out the bandwidth adjustment.
Real time business data broadcast scheduler subsystem: be responsible for the real time business data are dispatched broadcasting; As shown in Figure 2, real time business data broadcast 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 according to current classification, dynamically increase new real time data scheduler module or delete real time data scheduler module out of date; The real time data scheduler module is carried out broadcast scheduling to the real time business data of access.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 large, 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 as far as possible short, and native system has adopted the Flat broadcast mode.
Non-real-time service data broadcast scheduler subsystem: be responsible for non-real-time data is carried out broadcast scheduling; As shown in Figure 3, non-real-time service data broadcast 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 according to current classification, dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date; The non-real-time data scheduler module is carried out broadcast scheduling to the non-real-time data of access.Because non-real-time data general data amount is large, the access module difference is very large, 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, affect 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 Optimal Operation Model is dispatched, rationally determine transmission frequency and the sending order of each data, so that the higher data of access frequency send with higher frequency, the data that access probability is lower send with lower frequency, keep simultaneously traditional Flat broadcast mode, when adding data service, adopt which kind of scheduling mode by user selection.
Individuation data broadcast scheduling subsystem: be responsible for 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, then leave in the request queue, 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 individuation data scheduler module is carried out data dispatch to the data set that the user who is chosen by the request scheduling module asks.Native system adopts based on the data broadcast 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 asking by the data access module, reject same data item, the order of reasonable arrangement data item, carry out efficiently data broadcast, user customized information is according to the customization data volume, the customization transmission time information carries out the data broadcast scheduling.
Channel adaptation subsystem: be responsible for each data traffic information is carried out channel adaptation; 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, then sends to broadcast system and carries out data broadcast.
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, such 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, such as Domestic News, shopping information server etc., broadcast system is the third party system for data broadcast, 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 (2)

1. Comprehensive Data service data broadcast scheduling platform, it is characterized in that comprising: control centre, real time business data broadcast scheduler subsystem, non-real-time service data broadcast scheduler subsystem, individuation data broadcast scheduling subsystem and channel adaptation subsystem, wherein:
Control centre: be responsible for startup, the configuration management of data service, the distribution of each service bandwidth and adjustment, simultaneously store data business and channel allocation information; 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, the configuring request of receive data business; 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 processed; When the dynamic appending data service, allocated bandwidth and adjusting module are the bandwidth that data service distributes to be needed, and when deletion or Update Table business, 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 for carrying out the bandwidth adjustment; Configuration database is used for store data business and channel allocation information;
Real time business data broadcast scheduler subsystem: be responsible for the real time business data are dispatched broadcasting; Described real time business data broadcast 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 according to current classification, dynamically increase new real time data scheduler module or delete real time data scheduler module out of date; The real time data scheduler module is carried out broadcast scheduling to the real time business data of access;
Non-real-time service data broadcast scheduler subsystem: be responsible for non-real-time data is dispatched broadcasting; Described non-real-time service data broadcast 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 as access interface, and it accesses 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 according to current classification, dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date; The non-real-time data scheduler module is carried out broadcast scheduling to the non-real-time data of access;
Individuation data broadcast scheduling subsystem: be responsible for 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, then leaves in the request queue; The 3rd data access module is as access interface, and it accesses 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 individuation data scheduler module is carried out data dispatch to the data set that the user who is chosen by the request scheduling module asks;
The channel adaptation subsystem: be responsible for the bandwidth allocation information according to each data traffic channels, described channel adaptation subsystem 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 broadcast.
2. Comprehensive Data service data broadcast scheduling 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 respectively real time business data broadcast scheduler subsystem, non-real-time service data broadcast scheduler subsystem, individuation data broadcast scheduling subsystem, allocated bandwidth and adjusting module, business datum amount statistical module and channel adaptation subsystem, system can provide the data broadcast dispatch service, when the data service configuring request was arranged, request was analyzed and is processed to the data business configuration; Business datum amount statistical module is regularly added up the data volume of real time business data broadcast 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 data broadcast scheduling platform according to claim 1, it is characterized in that: described real time business data broadcast 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 of access 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 according to current classification, dynamically increase new real time data scheduler module or delete real time data scheduler module out of date; The real time data scheduler module is carried out broadcast scheduling to the real time data of access, satisfies the time sex-limited requirement of real time business data.
4. Comprehensive Data service data broadcast scheduling platform according to claim 1, it is characterized in that: described non-real-time service data broadcast 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 of access 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 according to current classification, dynamically increase new non-real-time data scheduler module or delete non-real-time data scheduler module out of date; The non-real-time data scheduler module according to data access probability, length information, is carried out rational management to the non-real-time data of access.
5. Comprehensive Data service data broadcast scheduling 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 user's request of data, 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 individuation data scheduler module is dispatched the data that the user who chooses asks, and by the data that the importing of data access module is asked, broadcast; To user customized information, according to the customized information amount, the customization transmission time information carries out rational management.
6. Comprehensive Data service data broadcast scheduling platform according to claim 1, it is characterized in that: described channel adaptation subsystem 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 broadcast.
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