CN104717547B - Direct broadcast satellite emergency broadcast system and direct broadcast satellite broadcast receiver - Google Patents
Direct broadcast satellite emergency broadcast system and direct broadcast satellite broadcast receiver Download PDFInfo
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Abstract
The invention discloses a kind of direct broadcast satellite emergency broadcast system and direct broadcast satellite broadcast receiver, which includes：Urgent broadcast scheduler module is analyzed for receiving emergent broadcasting information, and to emergent broadcasting information, determines the urgent broadcast type of emergent broadcasting information；Audio information broadcast module, in the case where urgent broadcast type is that Audio emergency is broadcasted, emergent broadcasting information to be sent in wideband direct broadcast satellite TV broadcast singal.The present invention is by receiving the emergent broadcasting information from responding agencies, and the emergent broadcasting information from urgent department is handled and is published in direct broadcasting satellite broadcasting television signal, so that users can receive by direct broadcasting satellite broadcasting television terminal and play emergent broadcasting information, to make corresponding emergency measure.
Description
Technical field
The present invention relates to direct broadcasting satellite broadcasting television technical fields, it particularly relates to a kind of direct broadcast satellite urgent broadcast
System and direct broadcast satellite broadcast receiver.
Background technology
Urgent broadcast refers to noticing the letter of emergency to the public using radio data system when facing accident
Breath is to carry out quickly early warning extensively to social public dissemination emergency information based on radio data system, be notified to the condition of a disaster, association in time
Help the effective means of disaster prevention and control.
Early in 1963, the U.S., which has started to build, connected thousands of TV and Radio Service, cable television network, broadcasting-satellite system
Covering the whole America emergency broadcast system, referred to as " emergency warning system "（Emergency Alert System, abbreviation EAS）,
Using emergency warning system, upon occurrence of an emergency situation, US President can be by the public of itself and each state of entire United States, each department
It is linked up, such as is made a television address.The emergency information publication of federal grade is started by US President, when president determines hair
When the national alarm of cloth, this information is communicated to Federal Emergency Management management administration first, Federal Emergency Management management administration is connected to
Information is transmitted to by telephone line, optical fiber or satellite and other technological means after instruction and is distributed in primary access in all parts of the country
Point.Information is transmitted to state radio relay broadcasting station by primary access point, and state radio relay broadcasting station monitors the emergency broadcast signal of primary access point, sees if there is
Information needs radio relay broadcasting station relaying in state to relay.The information of state radio relay broadcasting station is transmitted to primary local radio relay broadcasting station again.Finally, place is primary relays
Platform can be communicated to these information the thousands of private broadcasting organizations in the whole nation.
In addition, Japan is the multiple country of a disaster, in order to which the promptness of disaster early-warning information report, drop is continuously improved
Low disaster influences, and Japan attaches great importance to play effect of the radio and television in contingency management, establishes " emergency alert system "
（Emergency Warning System, abbreviation EWS）, emergence message is issued by radio and television.Japanese emergency alarm system
It is actually made of two sets of independent systems, a set of is urgent prewarning broadcast system（Emergency Warning
Broadcasting System, abbreviation EWBS）, a set of is the urgent Rapid information system of earthquake（Earthquake Early Warning
System, abbreviation EEWS）.EWBS is mainly used for after the disasters such as look-ahead to earthquake, tsunami will occur, by broadcasting electricity
Depending on carrying out warning information publication, principle is by the control instruction of a high priority, and control broadcast television receiver is automatic
Switching receives emergency alarm information.EEWS is then mainly used for after earthquake occurrence at the first time（In several seconds to tens seconds）By ground
Shake information is reported to the public, and principle is the characteristics of being had differences using seismic wave P waves, S wave transmission speeds, to monitor
After 5 grades of earthquake intensity or more earthquake, quickly and automatically earthquake information is reported by radio and television.Urgent prewarning broadcast system
（EWBS）It comes into operation in 1985, is originally integrated in analog fm, medium wave broadcast, analog terrestrial television system and issues tightly
Anxious warning information.2003, as Japanese Digital radio and television develop, urgent prewarning broadcast system was realized again in digital ground
Automatic broadcast in television broadcasting system.
By taking the urgent speed report of earthquake as an example, the flow that emergency alert system broadcasts alarm signal is as follows：
（1）The seismic detector that Japan Meteorological Agency is deployed in various regions perceives P-wave（That is longitudinal wave）It is transmitted to meteorology at once afterwards
The Room carries out data analysis by the meteorological Room, predicts earthquake intensity and scale；
（2）When somewhere, earthquake intensity reaches 5 grades, the meteorological Room is to NHK（Japan Broadcasting Association, Japan are unique public wide
Broadcast TV mechanism）The urgent speed of earthquake is sent out to notify breath；
（3）NHK is connected to the urgent speed of earthquake and notifies after breath, by broadcast TV program overlapping text and switching alert audio
Mode, rapid earthquake information report information distributing is gone out at the first time.
The front-end processor for being deployed in NHK receives the earthquake alarm information from Japan Meteorological Agency by special circuit, so
The private server being sent to afterwards in broadcast center and the NHK stations of all Japan 7, then information feeding alarm is set
It is standby.Alarm occurrence of equipment trigger radio station, TV station control unit, control unit folds the image that computerized image maker provides
It is added on existing television image, while the voice signal that audio signal generator generates being mixed with alarm, be added to existing
In some broadcast singals.Aforesaid operations are entirely automation so that NHK can receive Japan Meteorological Agency earthquake warning letter
After breath in 1~3 second, just earthquake warning is reported to commonwealthn.
In China, broadcasting and television network is important basic information network, and China has been completed at present covers population in the world
At most, central and local governments are combined, and the multiple means such as wired, wireless, satellite, internet are used in combination, traditional media and New Media
Joint development, covering is national, spreads all over town and country, the broadcasting and television network of sensible huge numbers of families.In the existing radio data system in China
In, only mobile multimedia broadcasting（CMMB）System has promulgated urgent broadcast standard, realizes the work(for broadcasting emergency broadcast message
Energy.And for China's broadcast television industry in the national direct broadcast satellite emergency broadcast system ground, due to radio and television basis skill
The difference of art, no matter the emergency warning system EAS in the U.S., the emergency alert system EWS of Japan or other countries
Similar system, the direct broadcast satellite emergency broadcast system that can not be all suitable for China studies, therefore, it is necessary to establish a kind of combination I
State center is used for the propagation of emergency broadcast message to the emergency warning system of the direct broadcasting satellite broadcasting television pattern in place.
Invention content
In order to solve the problems, such as that the prior art lacks the emergency broadcast system suitable for China, the present invention proposes a kind of live streaming
Satellite emergency broadcast system and direct broadcast satellite urgent broadcast reception device.
The technical proposal of the invention is realized in this way：
According to an aspect of the invention, there is provided a kind of direct broadcast satellite emergency broadcast system.
The direct broadcast satellite emergency broadcast system includes：
Urgent broadcast scheduler module is analyzed for receiving emergent broadcasting information, and to emergent broadcasting information, is determined tight
The urgent broadcast type of anxious broadcast message；
Audio information broadcast module is used in the case where urgent broadcast type is that Audio emergency is broadcasted, by urgent broadcast
Information is sent in wideband direct broadcast satellite TV broadcast singal.
Optionally, audio information broadcast module can be condition receiving system, can also be information on services generator.
Wherein, in the case where urgent broadcast type is that Audio emergency is broadcasted, emergent broadcasting information includes that audio broadcasting is sought
Location information and formulation channel switching information.
Optionally, audio broadcasting addressing information can be regional user identity information, can also be specific user's mark
Information.
In addition, the direct broadcast satellite emergency broadcast system further includes：Words information broadcast module, in urgent broadcast type
In the case of for word urgent broadcast, emergent broadcasting information is sent in wideband direct broadcast satellite TV broadcast singal.
Wherein, words information broadcast module can be condition receiving system.
Wherein, in the case of urgent broadcast type word urgent broadcast, emergent broadcasting information includes text broadcast addressing
Information and text broadcast content information.
Optionally, text broadcast addressing information can be regional user identity information, can also be specific user's mark
Information.
According to another aspect of the present invention, a kind of direct broadcast satellite broadcast receiver is provided.
The direct broadcast satellite broadcast receiver includes：
Signal processing module is believed for receiving direct broadcasting satellite broadcasting television signal, and to the direct broadcasting satellite broadcasting television
It number is analyzed, obtains the emergent broadcasting information in the direct broadcasting satellite broadcasting television signal, and be additionally operable to the institute to acquisition
It states emergent broadcasting information to be analyzed, determines the urgent broadcast type of the emergent broadcasting information；
Audio information analysis module, for being that Audio emergency is wide in the urgent broadcast type for determining the emergent broadcasting information
In the case of broadcasting, the emergent broadcasting information is parsed, obtains the audio broadcasting addressing that the emergent broadcasting information includes
Information and specified channel handover information；
Authentication module is addressed, for according to pre-stored addressing information, testing the audio broadcasting addressing information
Card, determines whether the audio broadcasting addressing information matches with the pre-stored addressing information；
Message processing module, for determining the audio broadcasting addressing information and the pre-stored addressing information
In the case of matching, according to the specified channel information, by wideband direct broadcast satellite TV channel switching to specified channel.
Wherein, described information processing module is additionally operable to after by wideband direct broadcast satellite TV channel switching to specified channel, by institute
The volume configuration for stating specified channel is the permitted max volume of current channel.
In addition, the direct broadcast satellite broadcast receiver further includes：Text information analysis module, for determine it is described urgent
In the case that the urgent broadcast type of broadcast message is word urgent broadcast, the emergent broadcasting information is parsed, is obtained
The text broadcast addressing information and text broadcast content information that the emergent broadcasting information includes.
Also, the addressing authentication module is additionally operable to, according to pre-stored addressing information, address the text broadcast
Information is verified, and determines whether the text broadcast addressing information matches with the pre-stored addressing information.
Also, described information processing module is additionally operable to deposit in advance with described in the text broadcast addressing information determined
In the case that the addressing information of storage matches, according to the text broadcast content information, by current wideband direct broadcast satellite TV channel
Background switch to preconfigured background, and the text broadcast content information is shown in the preconfigured background
Word content.
Optionally, the audio broadcasting addressing information and the text broadcast addressing information can be regional user identifier
Information, or specific user's identification information.
The present invention believes by receiving the emergent broadcasting information from responding agencies, and to the urgent broadcast from urgent department
Breath is handled and is published in direct broadcasting satellite broadcasting television signal, so that users can be broadcasted by direct broadcast satellite
Television terminal receives and plays emergent broadcasting information, to make corresponding emergency measure.
In addition, the present invention is in the emergent broadcasting information of transmission also by adding addressing information, so that send
Emergent broadcasting information has directive property, avoids emergent broadcasting information indifference, the transmission of comprehensive cover type, and causes not occur
The phenomenon that user's garbled-reception emergent broadcasting information in the area of emergency, occurs.
In addition, the present invention is also improved by receiving terminal to direct broadcasting satellite broadcasting television so that direct broadcast satellite is broadcasted
Television reception terminal can monitor the emergent broadcasting information in direct broadcasting satellite broadcasting television signal automatically, and automatically according to urgent wide
The emergency type for broadcasting information makes corresponding treatment measures in real time, realizes the real-time of emergent broadcasting information broadcasting, ensures
Users can understand the content of emergent broadcasting information in first time.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the block diagram of direct broadcast satellite emergency broadcast system according to the ... of the embodiment of the present invention；
Fig. 2 is the block diagram of direct broadcast satellite broadcast receiver according to the ... of the embodiment of the present invention；
Fig. 3 is flow when emergent broadcasting information according to the ... of the embodiment of the present invention triggers broadcast by information on services generator
Figure；
Fig. 4 be it is according to the ... of the embodiment of the present invention emergent broadcasting information by information on services generator trigger broadcast when, it is comprehensive
Close the flow diagram that Rcv decoder receives emergent broadcasting information；
Fig. 5 is flow when emergent broadcasting information according to the ... of the embodiment of the present invention triggers broadcast by condition receiving system
Figure；
Fig. 6 is according to the ... of the embodiment of the present invention when emergent broadcasting information is triggered by condition receiving system and broadcasted, comprehensive
Rcv decoder receives the flow diagram of emergent broadcasting information.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belong to what the present invention protected
Range.
According to an embodiment of the invention, a kind of direct broadcast satellite emergency broadcast system is provided.
As shown in Figure 1, direct broadcast satellite emergency broadcast system according to the ... of the embodiment of the present invention includes：
Urgent broadcast scheduler module 11 is analyzed for receiving emergent broadcasting information, and to emergent broadcasting information, is determined
The urgent broadcast type of emergent broadcasting information；
Audio information broadcast module 12 is used in the case where urgent broadcast type is that Audio emergency is broadcasted, will be promptly wide
Information is broadcast to be sent in wideband direct broadcast satellite TV broadcast singal.
Optionally, audio information broadcast module 12 can be condition receiving system, can also be information on services generator.
Wherein, in the case where urgent broadcast type is that Audio emergency is broadcasted, emergent broadcasting information includes that audio broadcasting is sought
Location information and formulation channel switching information.
Optionally, audio broadcasting addressing information can be regional user identity information, can also be specific user's mark
Information.
In addition, the direct broadcast satellite emergency broadcast system further includes：Words information broadcast module（It is not shown）, for urgent
In the case that broadcast type is word urgent broadcast, emergent broadcasting information is sent in wideband direct broadcast satellite TV broadcast singal.
Wherein, words information broadcast module can be condition receiving system.
Wherein, in the case of urgent broadcast type word urgent broadcast, emergent broadcasting information includes text broadcast addressing
Information and text broadcast content information.
Optionally, text broadcast addressing information can be regional user identity information, can also be specific user's mark
Information.
According to an embodiment of the invention, a kind of direct broadcast satellite broadcast receiver is additionally provided.
As shown in Fig. 2, direct broadcast satellite broadcast receiver according to the ... of the embodiment of the present invention includes：
Signal processing module 21, for receiving direct broadcasting satellite broadcasting television signal, and to the direct broadcasting satellite broadcasting television
Signal is analyzed, and obtains the emergent broadcasting information in the direct broadcasting satellite broadcasting television signal, and be additionally operable to acquisition
The emergent broadcasting information is analyzed, and determines the urgent broadcast type of the emergent broadcasting information；
Audio information analysis module 22, for being Audio emergency in the urgent broadcast type for determining the emergent broadcasting information
In the case of broadcast, the emergent broadcasting information is parsed, the audio broadcasting that the emergent broadcasting information includes is obtained and seeks
Location information and specified channel handover information；
Authentication module 23 is addressed, for according to pre-stored addressing information, being carried out to the audio broadcasting addressing information
Verification, determines whether the audio broadcasting addressing information matches with the pre-stored addressing information；
Message processing module 24, for determining the audio broadcasting addressing information and the pre-stored addressing letter
In the case of manner of breathing is matched, according to the specified channel information, by wideband direct broadcast satellite TV channel switching to specified channel.
Wherein, described information processing module 24 is additionally operable to after by wideband direct broadcast satellite TV channel switching to specified channel, will
The volume configuration of the specified channel is the permitted max volume of current channel.
In addition, the direct broadcast satellite broadcast receiver further includes：Text information analysis module（It is not shown）, in determination
In the case that the urgent broadcast type of the emergent broadcasting information is word urgent broadcast, the emergent broadcasting information is solved
Analysis, obtains the text broadcast addressing information and text broadcast content information that the emergent broadcasting information includes.
Also, the addressing authentication module 23 is additionally operable to, according to pre-stored addressing information, seek the text broadcast
Location information is verified, and determines whether the text broadcast addressing information matches with the pre-stored addressing information.
Also, described information processing module 24 be additionally operable to the text broadcast addressing information determined with it is described in advance
In the case that the addressing information of storage matches, according to the text broadcast content information, by current wideband direct broadcast satellite TV frequency
The background in road switches to preconfigured background, and the text broadcast content information is shown in the preconfigured background
Word content.
Optionally, the audio broadcasting addressing information and the text broadcast addressing information can be regional user identifier
Information, or specific user's identification information.
The above-mentioned technical proposal of the present invention is described in detail below in conjunction with concrete principle figure.
Fig. 3 shows emergent broadcasting information（Only limit the emergent broadcasting information of Audio emergency broadcast type）Pass through information on services
Flow chart when generator triggering broadcast, in figure 3, urgent broadcast manages system（That is urgent broadcast scheduler module）It is responsible for processing
Collection, processing and the management of emergent broadcasting information send urgent broadcast descriptive data to SIG by it（SI generator, i.e.,
Information on services generator）, SIG triggerings update urgent broadcast descriptor in NIT tables, then are touched by direct broadcasting satellite broadcasting television signal
Issue Integrated Receive Decoder（That is direct broadcast satellite broadcast receiver）, wherein it can when triggering Integrated Receive Decoder by NIT
It is triggered with being addressed by Zone_Code.
In above-mentioned NIT tables, urgent broadcast extended description accords with effective coverage, the urgent broadcast service for providing urgent broadcast
Number.It is 0x87 that urgent broadcast extended area, which describes sub- flag bit, and the concrete structure of urgent broadcast extended description symbol can be shown in Table
1。
Table 1：Urgent broadcast extended description accords with parameter list
Wherein, for urgent broadcast version（version）, 8 bit fields are used, the version of urgent broadcast is provided, works as version
When this is 0, Integrated Receive Decoder is not responding to urgent broadcast；And original network identification is accorded with（original_network_
id）, then 16 bit fields are used, the network_id for the Transmission system that urgent broadcast indicates is provided；Also, it fails to be sold at auction for transmission
Know symbol（transport_stream_id）, 16 bit fields are similarly used, only it is used for carrying out unique mark urgent broadcast
The TS at place flows；In addition, for task identifier（service_id）, 16 bit fields are equally also used, it is unique to carry out
The program number of identifying emergent broadcast；And for labelled component（component_tag）, then use 8 bit fields, value with fail to be sold at auction
The component_tag fields known in descriptor are identical.
In actual mechanical process, these traffic identifier descriptors in table 1 can occur directly in the sound for carrying out urgent broadcast
In the PSI Program Map Tables of frequency stream.
It is corresponding, when the emergent broadcasting information of Audio emergency broadcast type is to trigger to broadcast by information on services generator
When, corresponding Integrated Receive Decoder receives the flow of emergent broadcasting information just as shown in figure 4, figure 4, it is seen that comprehensive
After powering, Integrated Receive Decoder can monitor specific extended description symbol in NIT tables to Rcv decoder, at this point, if this expands
The parameter of the parameter and its version of opening up descriptor is non-zero, and regional code matches, and Integrated Receive Decoder pressure is switched to finger
Fixed urgent broadcast program plays out, and preserves the version number of this descriptor, and later stage real time monitoring arrives this version number, if any change
Change, then it represents that have new emergency broadcast message.And if this extended description symbol version number is 00, cancel urgent broadcast.At this point,
If Integrated Receiver decoder is in emergency broadcast channel, no matter before forcing to be switched to urgent broadcast Integrated Receive Decoder
In which kind of state, channel all automatically switches back into the broadcast TV channel that user finally selects, and volume is restored to original normal sound
Amount；At this point, if user has been manually switched to other channels, in the automatic cancellation urgent broadcast in backstage, no longer carries out channel and cut
It changes.
When current channel being switched to specified urgent broadcast program playing out, volume requires to be put into maximum, and
If during switching, Integrated Receive Decoder is to be in dormant, then should wake up to normal condition, and be switched to
Emergency broadcast channel and volume is transferred to maximum, and after Integrated Receive Decoder is triggered and is switched to emergency broadcast channel, it answers
User is allowed to switch to other channels.
Fig. 5 shows emergent broadcasting information（Emergent broadcasting information and word including Audio emergency broadcast type are promptly wide
The emergent broadcasting information broadcast）Flow chart when broadcasting is triggered by condition receiving system, in Figure 5, urgent broadcast manages system
It is responsible for collection, processing and the management of processing urgent broadcast, from it to SMS（Subscriber manage system, user management
System）Instruction is sent out, after SMS receives instruction, passes through condition receiving system（CA）In EMMG（entitled manage
Message generator, EMM Generator）Urgent broadcast is triggered to specific user or user group.
When being triggered by the EMMG in condition receiving system, emergent broadcasting information can be with range audio class and word
Two kinds of info class illustrates in terms of audio class and text information class two individually below.
For audio class emergent broadcasting information, condition receiving system is then by calling interface and promptly wide by audio class
Broadcast the relevant information that descriptor transmits urgent broadcast to Integrated Receive Decoder.
Wherein, interface function is as follows：
unsigned int X_DataToIrd(int length,unsigned char*data
Wherein, length refers to the length of data；And data is directed to the pointer of real data, when data first byte is
When x9D, indicate that the data are audio class urgent broadcast.
And the format definition of EMM audio class urgent broadcast descriptors is then as shown in the table：
Table 2：EMM audio class urgent broadcast descriptor parameters tables
It is corresponding, it is right when the emergent broadcasting information of Audio emergency broadcast type is condition receiving system triggering broadcast
The Integrated Receive Decoder answered receives the flow chart of emergent broadcasting information as shown in fig. 6, from fig. 6 it can be seen that Integrated Receiver
X_DataToIrd () interface that decoder is realized first determines whether that incoming data are audio class urgent broadcast descriptor, then
It is defined by descriptor format and parses the descriptor and each field is stored in memory, judge whether to answer according to entry-into-force time and version number
It redirects or preengages immediately and jump to specified urgent broadcast program and play out.
Wherein, judge whether to redirect or preengage immediately according to entry-into-force time and version number redirect when, if come into force
Between be equal or earlier than current audio class urgent broadcast time, then redirected immediately；And if the entry-into-force time be later than currently
The reservation of time of audio class urgent broadcast redirect, after reaching subscription time, complete to redirect in 60 seconds.,
Likewise, when current channel being jumped to specified urgent broadcast program playing out, volume requires to be put into
Maximum, and if during redirecting, Integrated Receive Decoder is to be in dormant, then should wake up to normal condition,
And be switched to emergency broadcast channel and volume is transferred to maximum, and it is switched to urgent broadcast frequency when Integrated Receive Decoder is triggered
Behind road, then assents family allowable and switch to other channels.
And for text information class emergent broadcasting information, condition receiving system is then described by text information class urgent broadcast
Symbol（OSD_MSG_DESCRIPTOR）To transmit the relevant information of urgent broadcast to Integrated Receive Decoder.
Wherein, the format of text information class urgent broadcast descriptor is defined as follows shown in table：
Table 3：Text information class urgent broadcast descriptor parameters table
It is corresponding, when text information class emergent broadcasting information is condition receiving system triggering broadcast, Integrated Receiver solution
Code device judges show or removes OSD according to the message number in descriptor, and Integrated Receive Decoder should also be sentenced
The coding mode of disconnected word content shows that coding mode is GB2312 if the first byte of word content field is 0x13.
And if receiving text information class emergent broadcasting information under information service, Integrated Receive Decoder if, should exit
Information service shows urgent broadcast word message.
In conclusion by means of the above-mentioned technical proposal of the present invention, believed by receiving the urgent broadcast from responding agencies
Breath, and the emergent broadcasting information from urgent department is handled and is published in direct broadcasting satellite broadcasting television signal, to
Users are received by direct broadcasting satellite broadcasting television terminal and play emergent broadcasting information, it is corresponding to make
Emergency measure.
In addition, the present invention is in the emergent broadcasting information of transmission also by adding addressing information, so that send
Emergent broadcasting information has directive property, avoids emergent broadcasting information indifference, the transmission of comprehensive cover type, and causes not occur
The phenomenon that user's garbled-reception emergent broadcasting information in the area of emergency, occurs.
In addition, the present invention is also improved by receiving terminal to direct broadcasting satellite broadcasting television so that direct broadcast satellite is broadcasted
Television reception terminal can monitor the emergent broadcasting information in direct broadcasting satellite broadcasting television signal automatically, and automatically according to urgent wide
The emergency type for broadcasting information makes corresponding treatment measures in real time, realizes the real-time of emergent broadcasting information broadcasting, ensures
Users can understand the content of emergent broadcasting information in first time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of direct broadcast satellite emergency broadcast system, which is characterized in that including：
Urgent broadcast scheduler module is analyzed for receiving emergent broadcasting information, and to the emergent broadcasting information, determines institute
State the urgent broadcast type of emergent broadcasting information；
Audio information broadcast module is used in the case where the urgent broadcast type is that Audio emergency is broadcasted, will be described urgent
Broadcast message is sent in direct broadcasting satellite broadcasting television signal；
Wherein, in the case where the urgent broadcast type is that Audio emergency is broadcasted, the emergent broadcasting information includes：
Audio broadcasting addressing information, specified channel handover information；
Wherein, the audio broadcasting addressing information includes：
Regional user identity information or specific user's identification information；
Further include：
Words information broadcast module is used in the case where the urgent broadcast type is word urgent broadcast, will be described urgent
Broadcast message is sent in direct broadcasting satellite broadcasting television signal；
In the case where the urgent broadcast type is word urgent broadcast, the emergent broadcasting information includes：
Text broadcast addressing information, text broadcast content information；
The words information broadcast module includes condition receiving system.
2. direct broadcast satellite emergency broadcast system according to claim 1, which is characterized in that the audio information broadcast module
Including：
Condition receiving system or information on services generator.
3. direct broadcast satellite emergency broadcast system according to claim 1, which is characterized in that the text broadcast addressing information
Including：
Regional user identity information or specific user's identification information.
4. a kind of direct broadcast satellite broadcast receiver, which is characterized in that including：
Signal processing module, for receiving direct broadcasting satellite broadcasting television signal, and to the direct broadcasting satellite broadcasting television signal into
Row analysis, obtains the emergent broadcasting information in the direct broadcasting satellite broadcasting television signal, and is additionally operable to the described tight of acquisition
Anxious broadcast message is analyzed, and determines the urgent broadcast type of the emergent broadcasting information；
Audio information analysis module, for being Audio emergency broadcast in the urgent broadcast type for determining the emergent broadcasting information
In the case of, the emergent broadcasting information is parsed, the audio broadcasting addressing information that the emergent broadcasting information includes is obtained
With specified channel handover information；
Authentication module is addressed, for according to pre-stored addressing information, being verified to the audio broadcasting addressing information, really
Whether the fixed audio broadcasting addressing information matches with the pre-stored addressing information；
Message processing module, for determining the audio broadcasting addressing information and the pre-stored addressing information phase
In the case of matching, according to the specified channel information, by wideband direct broadcast satellite TV channel switching to specified channel；
Wherein, further comprise：
Text information analysis module, for being word urgent broadcast in the urgent broadcast type for determining the emergent broadcasting information
In the case of, the emergent broadcasting information is parsed, the text broadcast addressing information that the emergent broadcasting information includes is obtained
With text broadcast content information；
Also, the addressing authentication module is additionally operable to according to pre-stored addressing information, to the text broadcast addressing information
It is verified, determines whether the text broadcast addressing information matches with the pre-stored addressing information；
And described information processing module be additionally operable to the text broadcast addressing information determined with it is described pre-stored
In the case that addressing information matches, according to the text broadcast content information, by the back of the body of current wideband direct broadcast satellite TV channel
Scape switches to preconfigured background, and the word of the text broadcast content information is shown in the preconfigured background
Content；
The audio broadcasting addressing information and the text broadcast addressing information include：
Regional user identity information or specific user's identification information.
5. direct broadcast satellite broadcast receiver according to claim 4, which is characterized in that described information processing module is also used
In after by wideband direct broadcast satellite TV channel switching to specified channel, the volume configuration of the specified channel is permitted by current channel
Perhaps max volume.
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| CN105471533B (en) * | 2015-12-31 | 2018-11-16 | 深圳Tcl数字技术有限公司 | The playback method and digital TV terminal of DTV emergent broadcast |
| CN105763953A (en) * | 2016-02-22 | 2016-07-13 | 四川长虹电器股份有限公司 | Method for playing emergency warning broadcast on television |
| CN106817589A (en) * | 2016-12-21 | 2017-06-09 | 伟乐视讯科技股份有限公司 | The front end switching system and method for a kind of TV programme |
| CN109640143A (en) * | 2018-12-27 | 2019-04-16 | 深圳西米通信有限公司 | A kind of triggering method based on terrestrial digital television set box emergent broadcast |
| CN111193935A (en) * | 2019-12-26 | 2020-05-22 | 广州华多网络科技有限公司 | Broadcast display method and device for live broadcast room, electronic equipment and storage medium |
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| CN101282185A (en) * | 2007-04-05 | 2008-10-08 | 国家广播电影电视总局广播科学研究院 | Method for conveying locality emergency broadcast message |
| CN102131148A (en) * | 2011-03-22 | 2011-07-20 | 中广传播集团有限公司 | Method for transmitting broadcast message and device for transmitting and receiving broadcast message |
| CN102185671A (en) * | 2011-04-20 | 2011-09-14 | 中广传播集团有限公司 | Emergency broadcasting system and method based on mobile multimedia broadcasting |
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| KR101285667B1 (en) * | 2006-11-22 | 2013-07-11 | 엘지전자 주식회사 | Method of controlling broadcasting signal for realizing emergency alert system in a terrestrial broadcasting, and the receiver for receiving the broadcasting signal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354951A (en) * | 1999-12-16 | 2002-06-19 | 皇家菲利浦电子有限公司 | System and method for broadcasting emergency warnings to radio and television receivers in low power mode |
| CN101282185A (en) * | 2007-04-05 | 2008-10-08 | 国家广播电影电视总局广播科学研究院 | Method for conveying locality emergency broadcast message |
| CN102131148A (en) * | 2011-03-22 | 2011-07-20 | 中广传播集团有限公司 | Method for transmitting broadcast message and device for transmitting and receiving broadcast message |
| CN102185671A (en) * | 2011-04-20 | 2011-09-14 | 中广传播集团有限公司 | Emergency broadcasting system and method based on mobile multimedia broadcasting |
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