CN102625243A - Headend information system of transport protocol experts group (TPEG) - Google Patents
Headend information system of transport protocol experts group (TPEG) Download PDFInfo
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- CN102625243A CN102625243A CN2011100303585A CN201110030358A CN102625243A CN 102625243 A CN102625243 A CN 102625243A CN 2011100303585 A CN2011100303585 A CN 2011100303585A CN 201110030358 A CN201110030358 A CN 201110030358A CN 102625243 A CN102625243 A CN 102625243A
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Abstract
The invention discloses a headend information system of TPEG, comprising a data supply module, a TPEG coding module, an information scheduling module and a transport stream compiling module. The data supply module collects original data required by TPEG information service and carries out pretreatment to produce first data, the TPEG coding module encodes and compacts different TPEG information service types of the first data to form second data, and then a TPEG transport stream is produced by scheduling of the information scheduling module and handling of the transport stream compiling module. The TPEG transform stream includes various TPEG information services and is supplied to subscribers by distributing through a broadcasting system such as a wireless digital broadcasting system used in television and broadcast, thereby providing relatively large transporting amounts with relatively low fees, and being able to transport and distribute more than two TPEG information services at the same time.
Description
Technical field
The invention relates to a kind ofly to be used to handle the action real time information so that the head end information system of information service to be provided, and be the head end information system that sends to user terminal apparatus through wireless digital broadcasting particularly relevant for a kind of information service that provides.
Background technology
Traditionally; Like real time information such as road conditions, meteorology, books are movable, the hotel owner is preferential system through FM (Frequency Modulation; Frequency modulation) broadcasting or GSM/CDMA (Global System for Mobile communications/Code Division Multiple Access, Global System for Mobile Communication/Code Division Multiple Access) communication network are sent to user terminal apparatus.Though FM broadcasting has the low advantage of transmission cost; But its data quantity transmitted of can in the unit interval is less; Can only be applied to the issue of RDS-TMC (Radio Data System-Traffic Message Channel, radio broadcasting data system-traffic message channel) for example more important, to bigger great traffic events and the weather information of driver's influence.Though and GSM/CDMA network data quantity transmitted of can in the unit interval is bigger, exist the higher and base station of transmission cost to access the limited shortcoming of number of users, influence the user and use wish.
In recent years; By EBU (European Broadcasting Union; European Broadcasting Union) TPEG (Transport Protocol Experts Group, the host-host protocol expert group) tissue of setting up is devoted to develop TPEG host-host protocol and type service coding criterion.The TPEG host-host protocol is followed ISO (International Organization for Standardization; International Standards Organization) osi model (Open Systems Interconnectionmodel; Open Systems Interconnection) ordered, ordered CEN ISO/TS 18234 and 24530 liang big type technical specifications at present.The TPEG host-host protocol has irrelevant language, irrelevant transmission medium and multimode application characteristic.
The information service that the TPEG host-host protocol has been formulated and formulated has SNI (Service and Network Information; The service and the network information), RTM (Road Traffic Message; The road traffic message), PTI (Public Transport Information, public transportation information), LOC (LOCation referencing, location reference), PKI (ParKing Information; Parking information), CTT (Congestion and Travel Time; Congested and hourage), TEC (Traffic Event Compact, traffic events), WEA (Weather information for travelers, travelling weather information).Wherein, the SNI information service provides relevant service provider's each item information and the information of service content.The RTM information service provides the message of relevant road traffic, like traffic accident, obstruction etc.The PTI information service provides the information of relevant public transportation vehicle, like information such as ferry boat, bus, subway, train and all kinds of transfer stations.The LOC information service provides relevant geographical position and definite scene, and information services such as RTM, PTI, PKI, CTT, TEC and WEA are used for arranging in pairs or groups.
Summary of the invention
The object of the invention can provide a plurality of different TPEG information services simultaneously proposing a kind of TPEG head end information system, and the wireless digital broadcasting system issue that these TPEG information services are big through transmission quantity and transmission cost is lower is to offer the user.
In order to reach above-mentioned purpose and other purpose, the present invention proposes a kind of TPEG head end information system, is used to provide a plurality of TPEG information services, and these TPEG information services are issued to offer the user through the wireless digital broadcasting system.TPEG head end information system comprises data supply module, TPEG coding module, information arranging module and MPTS collector.The data supply module is used to collect the required initial data of TPEG information service, and when checking has the prospect that meets the TPEG filespec with the parsing initial data, it is translated into a plurality of first data that meet the TPEG filespec.The TPEG coding module be used for each first data based under it TPEG information service type coding be compressed into second data.The information arranging module is used for receiving and keeps in second data to carry out release cycle scheduling planning according to issue transmission cycle and issue transmission means.The MPTS collector is used for planning that according to the release cycle scheduling second data compilation with all TPEG information service types becomes the TPEG MPTS that the TPEG MPTS sends the user to so that TPEG to be provided information service through the wireless digital broadcasting system.
The present invention produces first data because of adopting the data supply module to collect the required initial data of TPEG information service and handle in advance; Through the TPEG coding module first data of various TPEG information service types are carried out encoding compression again and become second data; Produce the TPEG MPTS through the scheduling of information arranging module and the processing of MPTS collector then; This TPEG MPTS comprises various TPEG information services and issues to offer the user through the wireless digital broadcasting system that for example is used for television broadcasting; Bigger transmission quantity and lower transmission cost can be provided, and can carry out the transmission and the issue of two or more TPEG information services simultaneously.
Wherein, said TPEG head end information system also comprises a monitoring module, is used to monitor the running of this data supply module, this TPEG coding module, this information arranging module and this MPTS collector.
Said TPEG information service comprises RTM (Road Traffic Message; The road traffic message), CTT (Congestion and Travel Time; Congested and hourage), POI (Point Of Interest; Point of interest), PKI (ParKing Information, parking information), ENW (Electric NeWs, E-News), WEA (WEAther information for travelers; The travelling weather information) and wherein at least two kinds of information services of PTI (Public Transport Information, public transportation information) information service.
This wireless digital broadcasting system comprises DVB (Digital Video Broadcast; DVB), ATSC (Advanced Television Systems Committee; Advance the rank television standard committee), ISDB (Integrated Services Digital Broadcasting; The integrated service digital broadcasting) or DTMB (DigitalTelevision Multimedia Broadcasting, digital TV multimedia broadcasting) ground or broadcasting-satellite system.
For let above-mentioned and other purposes of the present invention, feature and advantage can be more obviously understandable, hereinafter is special lifts preferred embodiment, and conjunction with figs., elaborates as follows.
Description of drawings
Fig. 1 is an embodiment calcspar of TPEG head end information system of the present invention.
Fig. 2 is an embodiment calcspar of data supply module shown in Figure 1.
Fig. 3 is an embodiment calcspar of TPEG coding module shown in Figure 1.
Fig. 4 is an embodiment sketch map of first data shown in Figure 1.
Fig. 5 is an embodiment sketch map of second data shown in Figure 1.
Fig. 6 is another embodiment calcspar of TPEG head end information system of the present invention.
The primary clustering symbol description:
1,1 ': TPEG head end information system 11: data supply module
12:TPEG coding module 13: information arranging module
14: MPTS collector 15: monitoring module
2: wireless digital broadcasting system 21: multiplexing module
22:DVB modulation module 23: transmitter module
3: terminal installation 31: receiver module
32:DVB demodulation module 33: multichannel distribution module
34: MPTS interpretation module 35:TPEG decoding module
111: data gathering module 112: the checking parsing module
113: mistake filtering module 114: the data translation module
121:SNI collector 122:LOC collector
123:RTM coding module 124:CTT coding module
125:POI coding module 126:PKI coding module
127:ENW coding module 128:WEA coding module
129:PTI coding module TPEG_RAW: initial data
TPEG_XML: the first data TPEG_BIN: second data
TPEG_TS:TPEG MPTS AV_TS: image and sound program MPTS
EPG_TS: listing MPTS DVB_TS:DVB MPTS
Embodiment
See also Fig. 1, it is an embodiment calcspar of TPEG head end information system of the present invention.TPEG head end information system 1 is used to provide a plurality of TPEG information services, and these TPEG information services are through 2 issues of wireless digital broadcasting system, and the user obtains these TPEG information services through terminal installation 3 again.Wherein, The TPEG information service comprises the information service that the TPEG host-host protocol has been formulated and formulated; Like SNI, RTM, PTI, LOC, PKI, CTT, TEC, WEA information service, and make amendment according to factors such as country, place, time, personage, vehicle, environment.The TPEG information service also comprises ENW (Electric News; E-News), POI (Point Of Interest; Point of interest) and other information service; The ENW information service provides picture and the real time information of literal news, and the POI information service provides information such as the master data (like title, picture, address and corresponding longitude and latitude, phone and webpage network address etc.) of all kinds of sight spots, hotel owner and activity etc., up-to-date preference scheme.
TPEG head end information system 1 comprises data supply module 11, TPEG coding module 12, information arranging module 13 and MPTS collector 14.Data supply module 11 is used to collect the required initial data TPEG_RAW of TPEG information service, and when checking has the prospect that meets TPEG filespec (like CEN ISO/TS 18234 and 24530 liang big type technical specifications) with parsing initial data TPEG_RAW, it is translated into a plurality of first data TPEG_XML that meet the TPEG filespec.TPEG coding module 12 is used for each first data TPEG_XML is compressed into the second data TPEG_BIN according to TPEG information service type coding under it.Information arranging module 13 is used for receiving and keeps in the second data TPEG_BIN to carry out release cycle scheduling planning according to issue transmission cycle and issue transmission means.MPTS collector 14 is used for planning that according to the release cycle scheduling the second data TPEG_BIN with all TPEG information service types is compiled into TPEG MPTS TPEG_TS; TPEG MPTS TPEG_TS is through 2 issues of wireless digital broadcasting system, and the user obtains these TPEG information services through terminal installation 3 again.
See also Fig. 2, it is an embodiment calcspar of data supply module 11 shown in Figure 1.Data supply module 11 comprises data gathering module 111, checking parsing module 112, mistake filtering module 113 and data translation module 114.Data gathering module 111 sees through various external information pipelines and collects the required initial data TPEG_RAW of TPEG information service.For example, RTM, PTI, PKI, CTT, TEC information service can be obtained the initial data like string format from background data bases such as Department of Transportation, the Ministry of Railways, counties and cities, each province traffic administration office and public security organs.The WEA information service can be obtained the initial data like XML (Extensible Markup Language, extend markup language) form from Central Weather Bureau's background data base.ENW information can be obtained as meeting the initial data of TPEG filespec form from each news station background data base.POI information can be obtained as meeting the initial data of TPEG filespec form from website background data base such as all kinds of relevant tourisms, hotel owner or from database construction.Subsequent treatment for ease; Data gathering module 111 also can be carried out the correspondence and the transformation of the way to the field of initial data TPEG_RAW usually; And insert corresponding character string in the file header place according to TPEG information service type under each initial data TPEG_RAW, like " RTM_Messages ", " CTT_Messages " etc.
Checking parsing module 112 is used to verify whether the initial data TPEG_RAW that collects with resolution data collection module 111 has the prospect that meets TPEG filespec (like CEN ISO/TS 18234 and 24530 liang big type technical specifications).For example; The XML outline of being formulated according to each TPEG information service type (XMLSchema); Whether checking and each field contents of resolving each initial data TPEG_RAW and form the standard of XML outline, and verifies whether the coding of relevant picture among each initial data TPEG_RAW meets format specification.The data that mistake filtering module 113 is used for checking parsing module 112 is sent are judged do not have the data filtering that meets TPEG filespec prospect and produce error logging.Data translation module 114 is used for being judged that with what wrong filtering module 113 sent having the data that meet TPEG filespec prospect is translated into the first data TPEG_XML that meets the TPEG filespec.It is as shown in Figure 4 that the initial data TPEG_RAW that belongs to CTT information service type is translated into the embodiment of the first data TPEG_XML, and these first data TPEG_XML is the data of XML form.
See also Fig. 3, it is an embodiment calcspar of TPEG coding module 12 shown in Figure 1.TPEG coding module 12 comprises service and the network information (SNI) collector 121, location reference (LOC) collector 122 and a plurality of TPEG information service coding module 123～129.SNI collector 121 is used for giving a corresponding system service code and a corresponding network information identifier with each first data TPEG_XML according to TPEG information service type under it.So, when user terminal apparatus 3 received several TPEG information services that provided by different TPEG head end information systems simultaneously, user terminal apparatus 3 can be according to system service code and automatic reception of network information identifier and corresponding TPEG information service.LOC collector 122 is used for converting the geographical level of road (like national highway, provincial highway, county road etc.) of each first data TPEG_XML to meet the TPEG filespec geographic code; This geographical code packages is drawn together the road category code stipulated like government department and the information of WGS84 the earth geographical coordinate, so that follow-up the integration in value added service and satellite navigation function is convenient to handle and use.
TPEG information service coding module 123～129 is respectively RTM coding module 123, CTT coding module 124, POI coding module 125, PKI coding module 126, ENW coding module 127, WEA coding module 128 and PTI coding module 129.Each first data TPEG_XML is after process SNI collector 121 and 122 processing of LOC collector; Then send into corresponding TPEG information service coding module of TPEG information service type under it and be encoded and be compressed into the second data TPEG_BIN, carry out data compression again after for example earlier data content being converted into corresponding parameter, code and literal.The first data TPEG_XML encoding compression that belongs to CTT information service type becomes the embodiment of the second data TPEG_BIN as shown in Figure 5; These second data TPEG_BIN is the data of binary code (binary code) form, and shows with heuristicimal code like icon usually.
Please again referring to Fig. 1; What of the TPEG information service that provides according to TPEG head end information system 1; The issue transmission cycle of adjustment information arranging module 13 and issue transmission means make information arranging module 13 according to release cycle scheduling planning the second temporary data TPEG_BIN of receive exported.Wherein, the issue transmission cycle is determined by the time of each TPEG information service coding module deal with data that mainly the issue transmission means then can adopt batch transmission or once transmission according to TPEG information service single data volume.
Wireless digital broadcasting system 2 is DVB (Digital Video Broadcast, DVB) terrestrial broadcast system or a DVB broadcasting-satellite system, but not as limit; For example can also be ATSC (Advanced Television Systems Committee; Advance the rank television standard committee), ISDB (Integrated Services Digital Broadcasting; The integrated service digital broadcasting), DTMB (Digital Television Multimedia Broadcasting, digital TV multimedia broadcasting) ground or broadcasting-satellite system.MPTS AV_TS and the synthetic dvb transport stream DVB_TS of EPG_TS that the TPEG MPTS TPEG_TS that comprises the TPEG information service that wireless digital broadcasting system 2 provides TPEG head end information system 1 through multiplexing module (multiplexer module) 21 and other each image and sound program and listing are processed.Dvb transport stream DVB_TS is then through sending out RF signal through transmitter module 23 after 22 modulation of DVB modulation module again.
Terminal installation 3 for example is like hand-hold type or vehicular terminal installations such as personal digital assistant, notebook computer, on-vehicle navigation apparatuses.Terminal installation 3 receives the RF signal that wireless digital broadcasting system 2 sends through receiver module 31.The multichannel of the demodulation of this RF signal through DVB demodulation module 32, multichannel distribution module (demultiplexer module) 33 is distributed, after the TPEG decoding of the MPTS decipher of MPTS interpretation module 34 and TPEG decoding module 35, user TPEG can be provided information service.
See also Fig. 6, it is another embodiment calcspar of TPEG head end information system of the present invention.TPEG head end information system 1 ' is that with the difference of TPEG head end information system 1 shown in Figure 1 TPEG head end information system 1 ' also comprises monitoring module 15.Monitoring module 15 is used for the running of monitor data supply module 11, TPEG coding module 12, information arranging module 13 and MPTS collector 14; For example monitor each module 11～14 software and hardwares running situation, hard disk use capacity, data issuing time, log file content and unusual caution issue; Data supply module 11 imports data time at interval, the on-line state between each module 11～14.
In sum; The present invention produces first data because of adopting the data supply module to collect the required initial data of TPEG information service and handle in advance; Through the TPEG coding module first data of various TPEG information service types are carried out encoding compression again and become second data; Produce the TPEG MPTS through the scheduling of information arranging module and the processing of MPTS collector then; This TPEG MPTS comprises various TPEG information services and issues to offer the user through the wireless digital broadcasting system that for example is used for television broadcasting; Bigger transmission quantity and lower transmission cost can be provided, and can carry out the transmission and the issue of two or more TPEG information services simultaneously.
Though the present invention is with open in above-mentioned preferred embodiment; So it is not to be used to limit the present invention; Any those skilled in the art; Do not breaking away from the spirit and scope of the present invention, when can doing various modifications and retouching, so protection scope of the present invention defines and is as the criterion when looking accompanying claim.
Claims (8)
1. a TPEG head end information system is characterized in that, is used to provide a plurality of TPEG information services, and to offer the user, this TPEG head end information system comprises through wireless digital broadcasting system issue in said TPEG information service:
One data supply module is used to collect the required initial data of said TPEG information service, and when checking has the prospect that meets a TPEG filespec with the parsing initial data, it is translated into a plurality of first data that meet this TPEG filespec;
One TPEG coding module, be used for each first data based under it TPEG information service type coding be compressed into one second data;
One information arranging module is used for receiving and temporary said second data are carried out release cycle scheduling planning to issue transmission means according to an issue transmission cycle and; And
One MPTS collector; Be used for planning that according to this release cycle scheduling said second data compilation with all TPEG information service types becomes a TPEG MPTS, this TPEG MPTS sends the user to so that said TPEG information service to be provided through this wireless digital broadcasting system.
2. TPEG head end information system as claimed in claim 1 is characterized in that, also comprises a monitoring module, is used to monitor the running of this data supply module, this TPEG coding module, this information arranging module and this MPTS collector.
3. TPEG head end information system as claimed in claim 1 is characterized in that, this data supply module comprises:
One data gathering module is used to collect the required initial data of said TPEG information service;
One checking parsing module is used to verify and resolve the initial data that this data gathering module collects and whether has the prospect that meets this TPEG filespec;
One wrong filtering module, the data that are used for this checking parsing module is sent are judged do not have the data filtering that meets this TPEG filespec prospect and produce an error logging; And
One data translation module is used for being judged that with what this mistake filtering module sent having the data that meet this TPEG filespec prospect is translated into said first data that meet this TPEG filespec.
4. TPEG head end information system as claimed in claim 1 is characterized in that, this TPEG coding module comprises:
One service and network information collector, be used for each first data based under it TPEG information service type give a corresponding system service code and a corresponding network information identifier;
One location reference collector is used for converting the geographical level of the road of each first data to meet this TPEG filespec geographic code; And
A plurality of TPEG information service coding modules, each TPEG information service coding module are used for this service of process and network information collector and this location reference collector and its corresponding first digital coding are compressed into this second data.
5. TPEG head end information system as claimed in claim 1; It is characterized in that said TPEG information service comprises at least two kinds of information services in road traffic message, congested and hourage, point of interest, parking information, E-News, travelling weather information and the public transportation information.
6. TPEG head end information system as claimed in claim 1 is characterized in that, this wireless digital broadcasting system comprises DVB, advances the rank television standard committee, integrated service digital broadcasting or digital TV multimedia are broadcasted ground or broadcasting-satellite system.
7. TPEG head end information system as claimed in claim 1 is characterized in that said first data are data of extend markup language form.
8. TPEG head end information system as claimed in claim 1 is characterized in that said second data are data of binary code form.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104598516A (en) * | 2014-12-04 | 2015-05-06 | 大连理工大学 | Encoding and issuing method of road condition picture information based on TPEG |
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| KR20060076574A (en) * | 2004-12-29 | 2006-07-04 | 삼성전자주식회사 | Traffic information collection and provision method and terminal used |
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Application publication date: 20120801 |