CN101369855B - Emergency broadcast transmission method and system, and receiving terminal - Google Patents
Emergency broadcast transmission method and system, and receiving terminal Download PDFInfo
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- CN101369855B CN101369855B CN2008101659449A CN200810165944A CN101369855B CN 101369855 B CN101369855 B CN 101369855B CN 2008101659449 A CN2008101659449 A CN 2008101659449A CN 200810165944 A CN200810165944 A CN 200810165944A CN 101369855 B CN101369855 B CN 101369855B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/59—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
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Abstract
The invention provides a transmission method for an emergent broadcast. A front-end system encapsulates the emergent broadcast in a payload of a multiplexing frame with a multiplexing frame marking of zero, encapsulates the grade information of the emergent broadcast in all the multiplexing frames or all the multiplexing frame heads contained in a broadcast channel frame where the emergent broadcast exists and transmits the encapsulated multiplexing frames. The terminal continuously receives the multiplexing frames at an activation state and judges the emergent broadcast grade information contained in multiplexing subframe heads contained in the multiplexing frame heads or the multiplexing frames, then judges whether to receive the emergent broadcast or not according to the emergent broadcast grade information. The invention also provides a system of the emergent broadcast, and better solves the contradiction between the terminal business processing and the emergent broadcast processing.
Description
Technical field
The present invention relates to field of mobile communication, relate in particular to a kind of transmission method of emergent broadcast and system.
Background technology
In recent years, digital mobile multimedia broadcasting technology and standard evolution are rapid, various standards provide many service content for the mobile multi-media broadcast terminal user, programs such as for example advertisement, weather forecast, news, sports cast, variety, multimedia broadcasting play and film, the user can select the service program of Mobile Multimedia Broadcasting according to the hobby of oneself.
Urgent broadcast is a kind of mode from emergency to the public that utilize broadcast communication system to announce.When accidents such as generation natural calamity, accident disaster, public health and social safety, cause or may cause great casualties, property loss, environmental destruction and serious social danger, when endangering public security, urgent broadcast provides a kind of mode of announcing efficiently rapidly.Urgent broadcast is an application module of Mobile Multimedia Broadcasting, has adopted the form of broadcast to realize, after terminal is received message, adopts corresponding exhibition method according to the rank and the type of emergency.Wherein, the message of urgent broadcast has literal, picture and audio frequency and video etc.
In China mobile multi-media broadcasting technology, urgent broadcast is achieved in that terminal is after its TV applications function is activated, received signal, be tuned to multiplexed frame, resolve then and judge the urgent broadcast indication field that comprises in this multiplexed frame frame head, thereby judge whether next broadcast channel frame has urgent broadcast, if urgent broadcast is arranged, then begin the receiving emergent broadcast table, parse the urgent broadcast data segment then, further be combined into emergency broadcast message.At last, come display message according to the urgent broadcast level field in the emergency broadcast message, if 1 grade, 2 grades, then force to show; If 3,4 ranks then point out the user whether to need to show that it is then to show that the user selects, otherwise does not show.
The method of reseptance of above urgent broadcast can produce following problem, television reception chip disposal ability in terminal is not strong, as can only handle 4 sequential a second time (business), when playing certain professional the time, this moment, urgent broadcast sended over, and needed to suspend the terminal current business, remove the receiving emergent broadcast table, parse the urgent broadcast data segment, be assembled into emergency broadcast message, just can learn the urgent broadcast rank.Even the television reception chip that disposal ability is more intense also needs to parse data segment and risks emergency broadcast message, could resolve and obtain the urgent broadcast rank, increased unnecessary step and power consumption like this.For this reason, need solve above problem by the method and apparatus that a kind of urgent broadcast is realized.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of transmission method of emergent broadcast and system, solves the contradiction that terminal traffic is handled and urgent broadcast is handled, and improves the efficient of mobile multimedia broadcast system.
In order to solve the problems of the technologies described above, the invention provides a kind of transmission method of emergency broadcast message, wherein:
Front end system is encapsulated into emergency broadcast message in the payload that multiplexed frame is designated 0 multiplexed frame, the class information of described emergency broadcast message is encapsulated in the frame head of all multiplexed frames that described emergency broadcast message place broadcast channel frame comprises or all multiplexed sub frames, and sends packaged multiplexed frame.
Further, said method also can have following characteristics:
Described front end system adopts the class information of following method encapsulation emergency broadcast message:
A reserved field that comprises in the frame head of described front end system with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame is defined as the urgent broadcast level field, and the corresponding relation between the assignment of the rank of default emergency broadcast message and described urgent broadcast level field;
Described front end system extracts the rank of described emergency broadcast message, according to the assignment of the described urgent broadcast level field of described correspondence setting behind the editor and/or coding that finish receiving emergency broadcast message data.
Further, said method also can have following characteristics:
Described front end system also is the assignment that there is not emergency broadcast message in a representative with described urgent broadcast level field assignment as not encapsulating emergency broadcast message in a broadcast channel frame.
Further, said method also can have following characteristics:
The extension bits that one or more other Field Definitions that described front end system also comprises in the frame head with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame are described urgent broadcast level field.
Further, said method also can have following characteristics:
After terminal receives a multiplexed frame, parse in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the described urgent broadcast level field that comprises, judge whether that according to this assignment needs show corresponding emergency broadcast message, show as need, then the emergency broadcast message in this broadcast channel frame or next broadcast channel frame is received and show; As not showing, then continue next multiplexed frame is handled, inquire perhaps whether the user plays emergency broadcast message and handle accordingly according to user's selection.
Further, said method also can have following characteristics:
When described terminal judges whether that according to described assignment needs show corresponding emergency broadcast message, there is not emergency broadcast message as this assignment representative, or the rank of the emergency broadcast message of this assignment representative is lower than the rank of the emergency broadcast message that should show of configuration, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
In order to solve the problems of the technologies described above, the present invention also provides a kind of transmission system of emergency broadcast message, comprise front end system and terminal, wherein said front end system comprises urgent broadcast server, multiplexer, the modulator that links to each other successively, and transmitter, described terminal comprises TV application module and urgent broadcast receiving processing module, wherein:
Described urgent broadcast server is used to obtain the data of emergency broadcast message and it is edited and/or encodes, and sends to multiplexer then.
Described multiplexer is designated the described emergency broadcast message data encapsulation of finishing editor and/or coding in the payload of 0 multiplexed frame to multiplexed frame, the class information of described emergency broadcast message is encapsulated in the frame head of all multiplexed frames that described emergency broadcast message place broadcast channel frame comprises or all multiplexed sub frames.
Described TV application module is used for activating described urgent broadcast receiving processing module when starting.
Described urgent broadcast receiving processing module is used for continuing to receive multiplexed frame under state of activation, and judge in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, judge whether the needs receiving emergency broadcast message according to described urgent broadcast class information.
Further, said system also can have following characteristics:
The reserved field that described multiplexer is used for comprising in the frame head with all multiplexed frames of broadcast channel frame or all multiplexed sub frames is defined as the urgent broadcast level field, and the corresponding relation between the assignment of the rank of default emergency broadcast message and described urgent broadcast level field;
Described multiplexer extracts the rank of described emergency broadcast message, according to the assignment of the described urgent broadcast level field of described correspondence setting behind the editor and/or coding that finish receiving emergency broadcast message data.
Further, said system also can have following characteristics:
Described multiplexer also is the assignment that there is not emergency broadcast message in a representative with described urgent broadcast level field assignment as not encapsulating emergency broadcast message in a broadcast channel frame.
Further, said system also can have following characteristics:
Described urgent broadcast receiving processing module also comprises receiving element, first resolution unit, judging unit, the man-machine interface unit that links to each other successively, second resolution unit that links to each other with described receiving element, described man-machine interface unit respectively, and the display unit that links to each other with described second resolution unit, wherein:
Described receiving element is used for continuing to receive multiplexed frame under state of activation, and receives multiplexed frame and send to described second resolution unit according to the notice of described judging unit and described man-machine interface unit;
Described first resolution unit is used for obtaining multiplexed frame from described receiving element, resolve in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, send to described judging unit then;
Described judging unit is used for the assignment according to the described urgent broadcast level field that receives, judge whether to need to show corresponding emergency broadcast message, show as need, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to second resolution unit; As not showing, then obtain next multiplexed frame and judge from described receiving element, perhaps notify man-machine interface unit inquiry user whether to play emergency broadcast message;
Described man-machine interface unit is used for the notice according to described judging unit, whether the inquiry user plays emergency broadcast message, if the user selects to play emergency broadcast message, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to described second resolution unit;
Described second resolution unit is used for after receiving the multiplexed frame that described receiving element sends the emergency broadcast message that comprises in the described multiplexed frame payload being parsed, and sends to display unit.
Further, said system also can have following characteristics:
Described urgent broadcast receiving processing module also comprises a memory cell that links to each other with described judging unit:
Described memory cell is used to store the rank of an emergency broadcast message that should show, and the corresponding relation between the rank of the assignment of urgent broadcast level field and emergency broadcast message;
Described judging unit is according to the rank and the described corresponding relation of the described emergency broadcast message of storing in the described memory cell that should show, judge the assignment that receives described urgent broadcast level field, the rank of the emergency broadcast message that should show as described in being lower than as the rank of the emergency broadcast message of this assignment representative, or there is not emergency broadcast message in this assignment representative, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
Further, said system also can have following characteristics:
The extension bits that one or more other Field Definitions that described multiplexer also comprises in the frame head with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame are described urgent broadcast level field;
The described assignment that is defined as the field of extension bits that comprises in the frame head of the multiplexed frame that described first resolution unit also will be obtained from described receiving element parses, and sends to judge module;
Described judging unit also combines the rank of judging described urgent broadcast in assignment and the described assignment that is defined as the field of extension bits with described urgent broadcast level field.
In order to solve the problems of the technologies described above, the present invention also provides a kind of method of reseptance of emergency broadcast message, wherein:
After terminal receives a multiplexed frame, parse in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the described urgent broadcast level field that comprises, judge whether that according to this assignment needs show corresponding emergency broadcast message, show as need, then the emergency broadcast message in this broadcast channel frame or next broadcast channel frame is received and show; As not showing, then continue next multiplexed frame is handled, inquire perhaps whether the user plays emergency broadcast message and handle accordingly according to user's selection.
Further, said method also can have following characteristics:
When described terminal judges whether that according to described assignment needs show corresponding emergency broadcast message, there is not emergency broadcast message as this assignment representative, or the rank of the emergency broadcast message of this assignment representative is lower than the rank of the emergency broadcast message that should show of configuration, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
In order to solve the problems of the technologies described above, the present invention also provides a kind of receiving terminal of emergency broadcast message, comprises TV application module and urgent broadcast receiving processing module, wherein:
Described TV application module is used for activating described urgent broadcast receiving processing module when starting;
Described urgent broadcast receiving processing module is used for continuing to receive multiplexed frame under state of activation, and judge in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, judge whether the needs receiving emergency broadcast message according to described urgent broadcast rank.
Further, above-mentioned terminal also can have following characteristics:
Described urgent broadcast receiving processing module also comprises receiving element, first resolution unit, judging unit, the man-machine interface unit that links to each other successively, second resolution unit that links to each other with described receiving element, described man-machine interface unit respectively, and the display unit that links to each other with described second resolution unit, wherein:
Described receiving element is used for continuing to receive multiplexed frame under state of activation, and receives multiplexed frame and send to described second resolution unit according to the notice of described judging unit and described man-machine interface unit.
Described first resolution unit is used for obtaining multiplexed frame from described receiving element, resolve in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, send to described judging unit then.
Described judging unit is used for the assignment according to the described urgent broadcast level field that receives, judge whether to need to show corresponding emergency broadcast message, show as need, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to second resolution unit; As not showing, then obtain next multiplexed frame and judge from described receiving element, perhaps notify man-machine interface unit inquiry user whether to play emergency broadcast message.
Described man-machine interface unit is used for the notice according to described judging unit, whether the inquiry user plays emergency broadcast message, if the user selects to play emergency broadcast message, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to described second resolution unit.
Described second resolution unit is used for after receiving the multiplexed frame that described receiving element sends the emergency broadcast message that comprises in the described multiplexed frame payload being parsed, and sends to display unit.
Further, above-mentioned terminal also can have following characteristics:
Described urgent broadcast receiving processing module also comprises a memory cell that links to each other with described judging unit:
Described memory cell is used to store the rank of an emergency broadcast message that should show, and the corresponding relation between the rank of the assignment of urgent broadcast level field and emergency broadcast message;
Described judging unit is according to the rank and the described corresponding relation of the described emergency broadcast message of storing in the described memory cell that should show, judge the assignment that receives described urgent broadcast level field, the rank of the emergency broadcast message that should show as described in being lower than as the rank of the emergency broadcast message of this assignment representative, or there is not emergency broadcast message in this assignment representative, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
A kind of transmission method of emergent broadcast of the present invention and system are without assembly unit and parsing urgent broadcast data, as long as resolve multiplex frame head, just can obtain the urgent broadcast rank, thereby handle accordingly, reduced unnecessary step and power consumption, improved the efficient of mobile multi-medium system.Simultaneously,, do not need to suspend current business yet, just can know the urgent broadcast rank, thereby handle accordingly, preferably solved the contradiction that terminal traffic is handled and urgent broadcast is handled for the terminal of utilizing the not strong chip producer of disposal ability.
Description of drawings
Fig. 1 is a kind of front end system structure chart of the embodiment of the invention.
Fig. 2 is a kind of terminal structure figure of the embodiment of the invention.
Fig. 3 carries out the method flow diagram of encapsulation process to emergency broadcast message for the embodiment of the invention.
Fig. 4 is a multiplexed frame frame head structure chart in the prior art.
Fig. 5 is an embodiment of the invention multiplexed frame frame head structure chart.
Fig. 6 is designated 0 multiplexed frame payload structural representation for multiplexed frame.
Fig. 7 receives the method flow diagram of processing to the emergency broadcast message that adopts the encapsulation of Fig. 3 method for the embodiment of the invention.
Embodiment
The present invention proposes a kind of transmission method of emergent broadcast and system, it is conceived substantially: front end system is when the encapsulation emergency broadcast message, the class information of described emergency broadcast message is encapsulated in the frame head of all multiplexed frames that described emergency broadcast message place broadcast channel frame comprises or all multiplexed sub frames, terminal is only by resolving the frame head of a multiplexed frame or multiplexed sub frame, just can obtain the class information of emergency broadcast message, thereby handle accordingly.
Below in conjunction with accompanying drawing the present invention is described in detail.
In order to solve the problems of the technologies described above, the present invention proposes a kind of transmission system of urgent broadcast, comprise as shown in Figure 1 front end system and terminal as shown in Figure 2, will introduce the composition structure and the function of this front end system and this terminal below in detail:
With reference to figure 1, this front end system comprises urgent broadcast server, multiplexer, the modulator that links to each other successively, and transmitter, wherein:
Described urgent broadcast server is used to obtain the data of emergency broadcast message and it is edited and/or encodes, and sends to multiplexer then.
Described multiplexer is designated the described emergency broadcast message data encapsulation of finishing editor and/or coding in the payload of 0 multiplexed frame to multiplexed frame, the class information of described emergency broadcast message is encapsulated in the frame head of all multiplexed frames that described emergency broadcast message place broadcast channel frame comprises or all multiplexed sub frames.
Specifically, a reserved field that comprises in the frame head of described multiplexer with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame is defined as the urgent broadcast level field, and the corresponding relation between the assignment of the rank of default emergency broadcast message and described urgent broadcast level field; Described multiplexer extracts the rank of described emergency broadcast message, according to the assignment of the described urgent broadcast level field of described correspondence setting behind the editor and/or coding that finish receiving emergency broadcast message data.Described multiplexer also is the assignment that there is not emergency broadcast message in a representative with described urgent broadcast level field assignment as not encapsulating emergency broadcast message in a broadcast channel frame.
The extension bits that one or more other Field Definitions that described multiplexer comprises in can also the frame head with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame are described urgent broadcast level field, thus other kind of emergency broadcast message level that the assignment of described urgent broadcast level field can be represented further increased.
Modulator and transmitter mainly are packaged multiplexed frame to be modulated on the physical channel and by electromagnetic signal be transmitted in the air, are convenient to receiving terminal and receive in its wireless coverage.
With reference to figure 2, this terminal comprises TV application module and urgent broadcast receiving processing module, wherein:
Described TV application module is used for activating described urgent broadcast receiving processing module when starting.
Described urgent broadcast receiving processing module is used for continuing to receive multiplexed frame under state of activation, and judge in the described multiplexed frame frame head or the urgent broadcast class information that comprises in the multiplexed sub frame frame head that comprises in the described multiplexed frame, judge whether the needs receiving emergency broadcast message according to described urgent broadcast class information.
Further, described urgent broadcast receiving processing module also comprises receiving element, first resolution unit, judging unit, the man-machine interface unit that links to each other successively, second resolution unit that links to each other with described receiving element, described man-machine interface unit respectively, the display unit that links to each other with described second resolution unit, and a memory cell that links to each other with described judging unit, wherein:
Described receiving element is used for continuing to receive multiplexed frame under state of activation, and receives multiplexed frame and send to described second resolution unit according to the notice of described judging unit and described man-machine interface unit.
Described first resolution unit is used for obtaining multiplexed frame from described receiving element, resolve in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, send to described judging unit then.
Described judging unit is used for the assignment according to the described urgent broadcast level field that receives, judge whether to need to show corresponding emergency broadcast message, show as need, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to second resolution unit; As not showing, then obtain next multiplexed frame and judge from described receiving element, perhaps notify man-machine interface unit inquiry user whether to play emergency broadcast message.Specifically, described judging unit is according to the rank of the described emergency broadcast message of storing in the described memory cell that should show and described corresponding relation, judge the assignment that receives described urgent broadcast level field, the rank of the emergency broadcast message that should show as described in being lower than as the rank of the emergency broadcast message of this assignment representative, or there is not emergency broadcast message in this assignment representative, then judge need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
Described man-machine interface unit is used for the notice according to described judging unit, whether the inquiry user plays emergency broadcast message, if the user selects to play emergency broadcast message, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to described second resolution unit.
Described second resolution unit is used for after receiving the multiplexed frame that described receiving element sends the emergency broadcast message that comprises in the described multiplexed frame payload being parsed, and sends to display unit.
Described memory cell is used to store the rank of an emergency broadcast message that should show, and the corresponding relation between the rank of the assignment of urgent broadcast level field and emergency broadcast message.
In received multiplexed frame frame head, not only comprise the urgent broadcast level field, when also comprising the extension bits of this field, the described assignment that is defined as the field of extension bits that comprises in the frame head of the multiplexed frame that described first resolution unit also will be obtained from described receiving element parses, send to judge module, also combine the rank of judging described urgent broadcast in assignment and the described assignment that is defined as the field of extension bits with described urgent broadcast level field by judging unit.
To introduce in detail below and use as above-mentioned front end system shown in Figure 1 carries out the flow process of encapsulation process to emergency broadcast message, as shown in Figure 3, comprise following steps:
Step S301: front end system is edited and/or is encoded it after the data of receiving an emergency broadcast message;
Step S302: this front end system is designated this emergency broadcast message data encapsulation in the payload of 0 multiplexed frame to multiplexed frame, and the class information of this emergency broadcast message is encapsulated in all multiplexed frame frame heads that this emergency broadcast message place broadcast channel frame comprises;
Front end system can adopt following method encapsulation emergency broadcast message class information: as shown in Figure 4, all comprise a reserved field in the frame head of all multiplexed frames in broadcast channel frame, this reserved field is defined as the urgent broadcast level field.This front end system is behind the editor and/or coding that finish receiving emergency broadcast message data, extract the rank of this emergency broadcast message, according to the corresponding relation between the assignment of the rank of this rank and a default emergency broadcast message and this urgent broadcast level field, the assignment of this urgent broadcast level field is set.
As shown in Figure 5, this urgent broadcast level field is one 3 bit fields, and the assignment that may deposit has 8 kinds (000,001,010,011,100,101,110,111) so.The urgent broadcast rank is divided into 4 grades at present, and wherein 1 grade of representative is great especially, and 2 grades of representatives are great, and 3 grades of representatives are bigger, and 4 grades of representatives are general.Therefore, this front end system can be provided with the corresponding relation system between the assignment of the rank of an emergency broadcast message and urgent broadcast level field, such as: when the rank of urgent broadcast is 1, can be 001 corresponding to the assignment of urgent broadcast level field; When the rank of urgent broadcast is 2, can be 010 corresponding to the assignment of urgent broadcast level field; When the rank of urgent broadcast is 3, can be 011 corresponding to the assignment of urgent broadcast level field; When the rank of urgent broadcast is 4, can be 100 corresponding to the assignment of urgent broadcast level field.Certainly, this corresponding relation can also be provided with according to additive method and be provided with.
As shown in Figure 6, the multiplexed frame that this front end system can adopt prior art that this emergency broadcast message is encapsulated in its place broadcast channel frame is designated that the table identification number is in the table of 0x10 in 0 the multiplexed frame, and concrete method for packing repeats no more here.
Step S303: this front end system is modulated to packaged multiplexed frame on the physical channel and sends.
This front end system is as not encapsulation during emergency broadcast message in a broadcast channel frame, can this broadcast channel frame in the assignment of urgent broadcast level field in all multiplexed frame frame heads be set to the assignment that there is not emergency broadcast message in a representative, such as 0000.
Above-mentioned steps has been finished the processing such as encapsulation of front end system to multiplexed frame, definition one urgent broadcast level field in the multiplexed frame frame head, and assignment represents whether comprise emergency broadcast message and the rank of the emergency broadcast message that comprised by this field is carried out.
In another embodiment, this front end system also can be defined as the urgent broadcast level field with the reserved field in the multiplexed sub frame frame heads all in the broadcast channel frame, when the encapsulation emergency broadcast message, according to the described method of the foregoing description, the rank of this emergency broadcast message is encapsulated in the multiplexed sub frame frame heads all in its corresponding broadcast channel frame in the defined urgent broadcast level field.
In another embodiment, the extension bits that one or more other Field Definitions that this front end system also can this terminal comprises in can the frame head with multiplexed frame or multiplexed sub frame are described urgent broadcast level field, by increasing the figure place of described urgent broadcast level field, further increased other kind of urgent broadcast level that this urgent broadcast level field can be represented.
Terminal is under the state of activation in its TV applications function, the urgent broadcast receiving function also is in state of activation, at this moment, this terminal continues to detect and receiving emergency broadcast message, with reference to figure 7, to introduce in detail below and adopt terminal shown in Figure 2 when its urgent broadcast receiving function is in state of activation, and adopt said method to carry out the flow process that encapsulated integration frame receives processing, specifically comprise following steps received each:
Step S701: terminal receives a multiplexed frame;
Step S702: the urgent broadcast level field that comprises in this multiplexed frame frame head of this terminal parses;
Step S703: whether the assignment of judging this urgent broadcast level field is the assignment that there is not emergency broadcast message in a representative, if then judging does not need to show emergency broadcast message, finishes; Otherwise enter step S704;
Step S704: judge that whether the rank of emergency broadcast message of the assignment representative of this urgent broadcast level field is lower than the rank of the emergency broadcast message that should show of configuration, if be not less than, then enters step S705; If be lower than, then enter step S706;
This terminal can be prepared the rank of an emergency broadcast message that should show in this locality, when the rank of judging an emergency broadcast message is greater than or equal to the rank of this emergency broadcast message that should show, judges that then this emergency broadcast message need force to show; When the rank of judging an emergency broadcast message during, judge that then this emergency broadcast message does not need to force to show less than the rank of this emergency broadcast message that should show.
Step S705: receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame, resolve and show the emergency broadcast message that comprises in this multiplexed frame, finish;
Because emergency broadcast message can continue to send in a period of time, promptly comprise this identical emergency broadcast message in the broadcast channel frame of each in a period of time, therefore, if judge and comprise an emergency broadcast message in the multiplexed frame, also comprise same emergency broadcast message in next broadcast channel frame of this multiplexed frame place broadcast channel frame so, terminal can be designated 0 multiplexed frame and obtains this emergency broadcast message by receiving and handle multiplexed frame in this next broadcast channel frame.
If the multiplexed frame of the multiplexed frame of current reception is designated 0, then just comprise the emergency broadcast message that needs show in this multiplexed frame, directly this multiplexed frame is resolved and wait processings just can obtain the emergency broadcast message of needs demonstration.Because emergency broadcast message is included in multiplexed frame in the broadcast channel frame and is designated in 0 the multiplexed frame, if the multiplexed frame of the current multiplexed frame of receiving is designated non-0, because the characteristics that multiplexed frame sends, this terminal can't receive that the multiplexed frame that comprises emergency broadcast message in the current broadcast channel frame can't receive that promptly multiplexed frame is designated 0 multiplexed frame in the current broadcast channel frame, so this terminal can be in next broadcast channel frame receiving emergency broadcast message and showing.
Step S706: whether this query field of terminal user plays emergency broadcast message, if the user selects to play emergency broadcast message, then judging needs to show emergency broadcast message, execution in step S705; Otherwise judging does not need to show emergency broadcast message, finishes.
This terminal can eject a prompting frame on user interface, inquire whether the user plays emergency broadcast message, and the user selects whether to need to show emergency broadcast message by the button that clicks on the described prompting frame.
Certainly, when this terminal also can be lower than the rank of the emergency broadcast message that should show of configuration in the rank of the emergency broadcast message of the assignment representative of judging this urgent broadcast level field, promptly judge when not needing to force to show emergency broadcast message, not to user's query, directly judgement does not need to show emergency broadcast message.
In another embodiment, when the reserved field in the front end system definition multiplexed sub frame frame head shown in Figure 1 is defined as the urgent broadcast level field, this terminal then adopts resolves the urgent broadcast level field that comprises in the multiplexed sub frame that comprises in the received multiplexed frame, and judges the assignment of this field.
In another embodiment, when one or more other Field Definitions that comprise in the front end system shown in Figure 1 frame head with multiplexed frame or multiplexed sub frame are the extension bits of described urgent broadcast level field, this terminal also needs to combine parsing the assignment of this urgent broadcast level field and the assignment of this extension bits, judges the rank of emergency broadcast message.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (17)
1. the transmission method of an emergency broadcast message is characterized in that:
Front end system is encapsulated into emergency broadcast message in the payload that multiplexed frame is designated 0 multiplexed frame, the class information of described emergency broadcast message is encapsulated in the frame head of all multiplexed frames that described emergency broadcast message place broadcast channel frame comprises or all multiplexed sub frames, and sends packaged multiplexed frame.
2. the method for claim 1 is characterized in that, described front end system adopts the class information of following method encapsulation emergency broadcast message:
A reserved field that comprises in the frame head of described front end system with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame is defined as the urgent broadcast level field, and the corresponding relation between the assignment of the rank of default emergency broadcast message and described urgent broadcast level field;
Described front end system extracts the rank of described emergency broadcast message, according to the assignment of the described urgent broadcast level field of described correspondence setting behind the editor and/or coding that finish receiving emergency broadcast message data.
3. method as claimed in claim 2 is characterized in that:
Described front end system also is the assignment that there is not emergency broadcast message in a representative with described urgent broadcast level field assignment as not encapsulating emergency broadcast message in a broadcast channel frame.
4. method as claimed in claim 2 is characterized in that:
The extension bits that one or more other Field Definitions that described front end system also comprises in the frame head with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame are described urgent broadcast level field.
5. method as claimed in claim 3 is characterized in that:
After terminal receives a multiplexed frame, parse in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the described urgent broadcast level field that comprises, judge whether that according to this assignment needs show corresponding emergency broadcast message, show as need, then the emergency broadcast message in this broadcast channel frame or next broadcast channel frame is received and show; As not showing, then continue next multiplexed frame is handled, inquire perhaps whether the user plays emergency broadcast message and handle accordingly according to user's selection.
6. method as claimed in claim 5 is characterized in that:
When described terminal judges whether that according to described assignment needs show corresponding emergency broadcast message, there is not emergency broadcast message as this assignment representative, or the rank of the emergency broadcast message of this assignment representative is lower than the rank of the emergency broadcast message that should show of configuration, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
7. the transmission system of an emergency broadcast message, it is characterized in that, comprise front end system and terminal, wherein said front end system comprises urgent broadcast server, multiplexer, the modulator that links to each other successively, and transmitter, described terminal comprises TV application module and urgent broadcast receiving processing module, it is characterized in that:
Described urgent broadcast server is used to obtain the data of emergency broadcast message and it is edited and/or encodes, and sends to multiplexer then;
Described multiplexer is designated the described emergency broadcast message data encapsulation of finishing editor and/or coding in the payload of 0 multiplexed frame to multiplexed frame, the class information of described emergency broadcast message is encapsulated in the frame head of all multiplexed frames that described emergency broadcast message place broadcast channel frame comprises or all multiplexed sub frames;
Described TV application module is used for activating described urgent broadcast receiving processing module when starting;
Described urgent broadcast receiving processing module is used for continuing to receive multiplexed frame under state of activation, and judge in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, judge whether the needs receiving emergency broadcast message according to described urgent broadcast class information.
8. system as claimed in claim 7 is characterized in that:
The reserved field that described multiplexer is used for comprising in the frame head with all multiplexed frames of broadcast channel frame or all multiplexed sub frames is defined as the urgent broadcast level field, and the corresponding relation between the assignment of the rank of default emergency broadcast message and described urgent broadcast level field;
Described multiplexer extracts the rank of described emergency broadcast message, according to the assignment of the described urgent broadcast level field of described correspondence setting behind the editor and/or coding that finish receiving emergency broadcast message data.
9. system as claimed in claim 8 is characterized in that:
Described multiplexer also is the assignment that there is not emergency broadcast message in a representative with described urgent broadcast level field assignment as not encapsulating emergency broadcast message in a broadcast channel frame.
10. system as claimed in claim 9, it is characterized in that, described urgent broadcast receiving processing module also comprises receiving element, first resolution unit, judging unit, the man-machine interface unit that links to each other successively, second resolution unit that links to each other with described receiving element, described man-machine interface unit respectively, and the display unit that links to each other with described second resolution unit, wherein:
Described receiving element is used for continuing to receive multiplexed frame under state of activation, and receives multiplexed frame and send to described second resolution unit according to the notice of described judging unit and described man-machine interface unit;
Described first resolution unit is used for obtaining multiplexed frame from described receiving element, resolve in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, send to described judging unit then;
Described judging unit is used for the assignment according to the described urgent broadcast level field that receives, judge whether to need to show corresponding emergency broadcast message, show as need, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to second resolution unit; As not showing, then obtain next multiplexed frame and judge from described receiving element, perhaps notify man-machine interface unit inquiry user whether to play emergency broadcast message;
Described man-machine interface unit is used for the notice according to described judging unit, whether the inquiry user plays emergency broadcast message, if the user selects to play emergency broadcast message, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to described second resolution unit;
Described second resolution unit is used for after receiving the multiplexed frame that described receiving element sends the emergency broadcast message that comprises in the described multiplexed frame payload being parsed, and sends to display unit.
11. system as claimed in claim 10 is characterized in that, described urgent broadcast receiving processing module also comprises a memory cell that links to each other with described judging unit:
Described memory cell is used to store the rank of an emergency broadcast message that should show, and the corresponding relation between the rank of the assignment of urgent broadcast level field and emergency broadcast message;
Described judging unit is according to the rank and the described corresponding relation of the described emergency broadcast message of storing in the described memory cell that should show, judge the assignment that receives described urgent broadcast level field, the rank of the emergency broadcast message that should show as described in being lower than as the rank of the emergency broadcast message of this assignment representative, or there is not emergency broadcast message in this assignment representative, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
12. system as claimed in claim 10 is characterized in that:
The extension bits that one or more other Field Definitions that described multiplexer also comprises in the frame head with all multiplexed frames or all multiplexed sub frames in the broadcast channel frame are described urgent broadcast level field;
The described assignment that is defined as the field of extension bits that comprises in the frame head of the multiplexed frame that described first resolution unit also will be obtained from described receiving element parses, and sends to judge module;
Described judging unit also combines the rank of judging described urgent broadcast in assignment and the described assignment that is defined as the field of extension bits with described urgent broadcast level field.
13. the method for reseptance of an emergency broadcast message is characterized in that:
After terminal receives a multiplexed frame, parse in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the described urgent broadcast level field that comprises, judge whether that according to this assignment needs show corresponding emergency broadcast message, show as need, then the emergency broadcast message in this broadcast channel frame or next broadcast channel frame is received and show; As not showing, then continue next multiplexed frame is handled, inquire perhaps whether the user plays emergency broadcast message and handle accordingly according to user's selection.
14. method as claimed in claim 13 is characterized in that:
When described terminal judges whether that according to described assignment needs show corresponding emergency broadcast message, there is not emergency broadcast message as this assignment representative, or the rank of the emergency broadcast message of this assignment representative is lower than the rank of the emergency broadcast message that should show of configuration, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
15. the receiving terminal of an emergency broadcast message comprises TV application module and urgent broadcast receiving processing module, it is characterized in that:
Described TV application module is used for activating described urgent broadcast receiving processing module when starting;
Described urgent broadcast receiving processing module is used for continuing to receive multiplexed frame under state of activation, and judge in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, judge whether the needs receiving emergency broadcast message according to described urgent broadcast rank.
16. terminal as claimed in claim 15, it is characterized in that, described urgent broadcast receiving processing module also comprises receiving element, first resolution unit, judging unit, the man-machine interface unit that links to each other successively, second resolution unit that links to each other with described receiving element, described man-machine interface unit respectively, and the display unit that links to each other with described second resolution unit, wherein:
Described receiving element is used for continuing to receive multiplexed frame under state of activation, and receives multiplexed frame and send to described second resolution unit according to the notice of described judging unit and described man-machine interface unit;
Described first resolution unit is used for obtaining multiplexed frame from described receiving element, resolve in the described multiplexed frame frame head or multiplexed sub frame frame head that described multiplexed frame comprises in the assignment of the urgent broadcast level field that comprises, send to described judging unit then;
Described judging unit is used for the assignment according to the described urgent broadcast level field that receives, judge whether to need to show corresponding emergency broadcast message, show as need, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to second resolution unit; As not showing, then obtain next multiplexed frame and judge from described receiving element, perhaps notify man-machine interface unit inquiry user whether to play emergency broadcast message;
Described man-machine interface unit is used for the notice according to described judging unit, whether the inquiry user plays emergency broadcast message, if the user selects to play emergency broadcast message, then notify described receiving element to receive in this broadcast channel frame or in next broadcast channel frame multiplexed frame be designated 0 multiplexed frame and send to described second resolution unit;
Described second resolution unit is used for after receiving the multiplexed frame that described receiving element sends the emergency broadcast message that comprises in the described multiplexed frame payload being parsed, and sends to display unit.
17. terminal as claimed in claim 16 is characterized in that, described urgent broadcast receiving processing module also comprises a memory cell that links to each other with described judging unit:
Described memory cell is used to store the rank of an emergency broadcast message that should show, and the corresponding relation between the rank of the assignment of urgent broadcast level field and emergency broadcast message;
Described judging unit is according to the rank and the described corresponding relation of the described emergency broadcast message of storing in the described memory cell that should show, judge the assignment that receives described urgent broadcast level field, the rank of the emergency broadcast message that should show as described in being lower than as the rank of the emergency broadcast message of this assignment representative, or there is not emergency broadcast message in this assignment representative, then judge and need not show corresponding emergency broadcast message, otherwise judging needs to show corresponding emergency broadcast message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101659449A CN101369855B (en) | 2008-09-25 | 2008-09-25 | Emergency broadcast transmission method and system, and receiving terminal |
| PCT/CN2009/000883 WO2010034180A1 (en) | 2008-09-25 | 2009-08-05 | Method and system for emergency broadcasting transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101659449A CN101369855B (en) | 2008-09-25 | 2008-09-25 | Emergency broadcast transmission method and system, and receiving terminal |
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| CN101369855A CN101369855A (en) | 2009-02-18 |
| CN101369855B true CN101369855B (en) | 2010-09-29 |
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| CN2008101659449A Expired - Fee Related CN101369855B (en) | 2008-09-25 | 2008-09-25 | Emergency broadcast transmission method and system, and receiving terminal |
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| WO (1) | WO2010034180A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369855B (en) * | 2008-09-25 | 2010-09-29 | 中兴通讯股份有限公司 | Emergency broadcast transmission method and system, and receiving terminal |
| CN102196299B (en) * | 2011-05-31 | 2018-04-27 | 中兴通讯股份有限公司 | Send or receive at the same time the method and system of image-text video emergency broadcast messages |
| CN102932672B (en) * | 2011-08-12 | 2017-03-29 | 国家广播电影电视总局广播科学研究院 | Emergency broadcast message adaptation insertion system based on digital TV network |
| CN102523517B (en) * | 2011-12-14 | 2016-01-20 | 深圳创维数字技术有限公司 | Receiving terminal for digital television, emergent broadcast starting method and system |
| CN103391145B (en) * | 2012-05-09 | 2015-11-18 | 国家广播电影电视总局广播科学研究院 | A kind of frequency modulation urgent broadcast implementation method based on RDS |
| CN102811379B (en) * | 2012-07-19 | 2016-03-23 | Tcl集团股份有限公司 | A kind of television set, message treatment method and system |
| CN102833669A (en) * | 2012-08-20 | 2012-12-19 | 北京小米科技有限责任公司 | Method, mobile terminal and system for instantly playing audio information |
| CN104137579B (en) * | 2013-02-06 | 2018-12-14 | 华为技术有限公司 | A kind of method and apparatus of transmission broadcast message |
| CN104581206A (en) * | 2013-10-23 | 2015-04-29 | 北京海格神舟通信科技有限公司 | Sound carrier coding-decoding and modulating-demodulating module |
| CN105263064B (en) * | 2015-10-14 | 2018-05-08 | 天脉聚源(北京)传媒科技有限公司 | A kind of control method for playing back and device |
| CN109462530B (en) * | 2018-10-23 | 2021-05-18 | 中电科航空电子有限公司 | Airplane digital audio transmission method based on RS422 bus and Slip protocol |
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| CN101369855B (en) * | 2008-09-25 | 2010-09-29 | 中兴通讯股份有限公司 | Emergency broadcast transmission method and system, and receiving terminal |
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| CN1897662A (en) * | 2005-07-27 | 2007-01-17 | 南京Lg同创彩色显示系统有限责任公司 | Display device and its additional information display method |
| CN101026766A (en) * | 2006-02-17 | 2007-08-29 | Lg电子株式会社 | Method of controlling emergency alert system, signal thereof and cable broadcast receiver |
| CN1972517A (en) * | 2006-12-08 | 2007-05-30 | 中兴通讯股份有限公司 | An emergency broadcast processing method and system |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2010034180A1 (en) | 2010-04-01 |
| CN101369855A (en) | 2009-02-18 |
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